From 1d7f8c7492d02c4d6872c35b0d87f40926200735 Mon Sep 17 00:00:00 2001
From: github-actions <github-actions@github.com>
Date: Fri, 10 Jan 2025 20:13:00 +0000
Subject: [PATCH] (Commit by workflow script) Update generated documentation.

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+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/asio_2node_8hpp_source.html b/doc/flow_doc/generated/html_full/asio_2node_8hpp_source.html
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-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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 <div class="ttc" id="aclassflow_1_1log_1_1Logger_html"><div class="ttname"><a href="classflow_1_1log_1_1Logger.html">flow::log::Logger</a></div><div class="ttdoc">Interface that the user should implement, passing the implementing Logger into logging classes (Flow'...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01287">log.hpp:1291</a></div></div>
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-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00215">peer_socket.hpp:223</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00216">peer_socket.hpp:224</a></div></div>
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@@ -1099,9 +1099,9 @@
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-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
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+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
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@@ -1111,7 +1111,7 @@
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/asio_2peer__socket_8cpp.html b/doc/flow_doc/generated/html_full/asio_2peer__socket_8cpp.html
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@@ -98,7 +98,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/asio_2peer__socket_8cpp_source.html b/doc/flow_doc/generated/html_full/asio_2peer__socket_8cpp_source.html
index ee44cd8fe..c7ef78c66 100644
--- a/doc/flow_doc/generated/html_full/asio_2peer__socket_8cpp_source.html
+++ b/doc/flow_doc/generated/html_full/asio_2peer__socket_8cpp_source.html
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 <div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span> </div>
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+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae9a0e5492b9ea005cc12c20c8e7cec9a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae9a0e5492b9ea005cc12c20c8e7cec9a">flow::net_flow::Node::connect_with_metadata</a></div><div class="ttdeci">Peer_socket::Ptr connect_with_metadata(const Remote_endpoint &amp;to, const boost::asio::const_buffer &amp;serialized_metadata, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">Same as connect() but sends, as part of the connection handshake, the user-supplied metadata,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03957">peer_socket.cpp:3957</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00216">peer_socket.hpp:224</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::State::S_CLOSED</a></div><div class="ttdeci">@ S_CLOSED</div><div class="ttdoc">Neither future reads nor writes are possible, AND Node has disowned the Peer_socket.</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a74f6fd527766fdeb05a96c5c03729a00"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a74f6fd527766fdeb05a96c5c03729a00">flow::net_flow::Peer_socket::disconnect_cause</a></div><div class="ttdeci">Error_code disconnect_cause() const</div><div class="ttdoc">The error code that perviously caused state() to become State::S_CLOSED, or success code if state is ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00101">peer_socket.cpp:101</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aa9e7e1be830c901bc7348742e79ba2e7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aa9e7e1be830c901bc7348742e79ba2e7">flow::net_flow::Peer_socket::node</a></div><div class="ttdeci">Node * node() const</div><div class="ttdoc">Node that produced this Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00095">peer_socket.cpp:95</a></div></div>
@@ -369,15 +369,15 @@
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1asio_html_a8497776b61df32a79707c264f8f2422b"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1asio.html#a8497776b61df32a79707c264f8f2422b">flow::net_flow::asio::operator&lt;&lt;</a></div><div class="ttdeci">std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const Peer_socket *sock)</div><div class="ttdoc">Prints string representation of given socket to given standard ostream and returns the latter.</div><div class="ttdef"><b>Definition:</b> <a href="asio_2peer__socket_8cpp_source.html#l00251">peer_socket.cpp:251</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1error_html_a18e13de77b119ea0f2be411490859482ab835895723a7d71c964b84e0f0b78c3c"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab835895723a7d71c964b84e0f0b78c3c">flow::net_flow::error::Code::S_WAIT_USER_TIMEOUT</a></div><div class="ttdeci">@ S_WAIT_USER_TIMEOUT</div><div class="ttdoc">A blocking (sync_) or background-blocking (async_) operation timed out versus user-supplied time limi...</div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_adf23368210219716b6fd22d15b765cb6"><div class="ttname"><a href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">flow::util::Task_engine</a></div><div class="ttdeci">boost::asio::io_service Task_engine</div><div class="ttdoc">Short-hand for boost.asio event service, the central class of boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00135">util_fwd.hpp:135</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket__options_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket__options.html">flow::net_flow::Peer_socket_options</a></div><div class="ttdoc">A set of low-level options affecting a single Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="options_8hpp_source.html#l00035">options.hpp:36</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Remote__endpoint_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Remote__endpoint.html">flow::net_flow::Remote_endpoint</a></div><div class="ttdoc">Represents the remote endpoint of a Flow-protocol connection; identifies the UDP endpoint of the remo...</div><div class="ttdef"><b>Definition:</b> <a href="endpoint_8hpp_source.html#l00092">endpoint.hpp:93</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/asio_2peer__socket_8hpp.html b/doc/flow_doc/generated/html_full/asio_2peer__socket_8hpp.html
index 02fbf4a98..eed1daf78 100644
--- a/doc/flow_doc/generated/html_full/asio_2peer__socket_8hpp.html
+++ b/doc/flow_doc/generated/html_full/asio_2peer__socket_8hpp.html
@@ -99,7 +99,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
 </body>
 </html>
diff --git a/doc/flow_doc/generated/html_full/asio_2peer__socket_8hpp_source.html b/doc/flow_doc/generated/html_full/asio_2peer__socket_8hpp_source.html
index b25bcdab1..16af45419 100644
--- a/doc/flow_doc/generated/html_full/asio_2peer__socket_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/asio_2peer__socket_8hpp_source.html
@@ -596,10 +596,10 @@
 <div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span>} <span class="comment">// Peer_socket::handler_func()</span></div>
 <div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span> </div>
 <div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span>} <span class="comment">// namespace flow::net_flow::asio</span></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Logger_html"><div class="ttname"><a href="classflow_1_1log_1_1Logger.html">flow::log::Logger</a></div><div class="ttdoc">Interface that the user should implement, passing the implementing Logger into logging classes (Flow'...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01287">log.hpp:1291</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html">flow::net_flow::Node</a></div><div class="ttdoc">An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00933">node.hpp:937</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00215">peer_socket.hpp:223</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00216">peer_socket.hpp:224</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1asio_1_1Node_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1asio_1_1Node.html">flow::net_flow::asio::Node</a></div><div class="ttdoc">A subclass of net_flow::Node that adds the ability to easily and directly use net_flow sockets in gen...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8hpp_source.html#l00234">node.hpp:236</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1asio_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1asio_1_1Peer__socket.html">flow::net_flow::asio::Peer_socket</a></div><div class="ttdoc">A net_flow::Peer_socket that adds integration with boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="asio_2peer__socket_8hpp_source.html#l00038">peer_socket.hpp:41</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1asio_1_1Peer__socket_html_a0101eeb10a910cb7dfb5a4b8016b8138"><div class="ttname"><a href="classflow_1_1net__flow_1_1asio_1_1Peer__socket.html#a0101eeb10a910cb7dfb5a4b8016b8138">flow::net_flow::asio::Peer_socket::~Peer_socket</a></div><div class="ttdeci">~Peer_socket() override</div><div class="ttdoc">Boring virtual destructor as in superclass. See notes there.</div><div class="ttdef"><b>Definition:</b> <a href="asio_2peer__socket_8cpp_source.html#l00037">peer_socket.cpp:37</a></div></div>
@@ -625,15 +625,15 @@
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1asio_html"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1asio.html">flow::net_flow::asio</a></div><div class="ttdoc">Contains classes that add boost.asio integration to the main Flow-protocol classes such as net_flow::...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8cpp_source.html#l00024">node.cpp:25</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a5488415feb5570a6551892a7bdfeeec4"><div class="ttname"><a href="namespaceflow_1_1util.html#a5488415feb5570a6551892a7bdfeeec4">flow::util::chrono_duration_from_now_to_fine_time_pt</a></div><div class="ttdeci">Fine_time_pt chrono_duration_from_now_to_fine_time_pt(const boost::chrono::duration&lt; Rep, Period &gt; &amp;dur)</div><div class="ttdoc">Helper that takes a non-negative duration of arbitrary precision/period and converts it to Fine_durat...</div><div class="ttdef"><b>Definition:</b> <a href="util_2detail_2util_8hpp_source.html#l00042">util.hpp:42</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_adf23368210219716b6fd22d15b765cb6"><div class="ttname"><a href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">flow::util::Task_engine</a></div><div class="ttdeci">boost::asio::io_service Task_engine</div><div class="ttdoc">Short-hand for boost.asio event service, the central class of boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00135">util_fwd.hpp:135</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
 <div class="ttc" id="anet__flow__fwd_8hpp_html"><div class="ttname"><a href="net__flow__fwd_8hpp.html">net_flow_fwd.hpp</a></div></div>
 <div class="ttc" id="apeer__socket_8hpp_html"><div class="ttname"><a href="peer__socket_8hpp.html">peer_socket.hpp</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket__options_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket__options.html">flow::net_flow::Peer_socket_options</a></div><div class="ttdoc">A set of low-level options affecting a single Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="options_8hpp_source.html#l00035">options.hpp:36</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/asio_2server__socket_8cpp.html b/doc/flow_doc/generated/html_full/asio_2server__socket_8cpp.html
index b3c389f08..ed6781fe5 100644
--- a/doc/flow_doc/generated/html_full/asio_2server__socket_8cpp.html
+++ b/doc/flow_doc/generated/html_full/asio_2server__socket_8cpp.html
@@ -98,7 +98,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
 </body>
 </html>
diff --git a/doc/flow_doc/generated/html_full/asio_2server__socket_8cpp_source.html b/doc/flow_doc/generated/html_full/asio_2server__socket_8cpp_source.html
index 71d2b18bc..a75a0c001 100644
--- a/doc/flow_doc/generated/html_full/asio_2server__socket_8cpp_source.html
+++ b/doc/flow_doc/generated/html_full/asio_2server__socket_8cpp_source.html
@@ -209,7 +209,7 @@
 <div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span> </div>
 <div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span>} <span class="comment">// namespace flow::net_flow::asio</span></div>
 <div class="ttc" id="aasio_2node_8hpp_html"><div class="ttname"><a href="asio_2node_8hpp.html">node.hpp</a></div></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Logger_html"><div class="ttname"><a href="classflow_1_1log_1_1Logger.html">flow::log::Logger</a></div><div class="ttdoc">Interface that the user should implement, passing the implementing Logger into logging classes (Flow'...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01287">log.hpp:1291</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Event__set_html_a19cc3a286c8a11c986d2a59ec1e39a71afb218b0110d3f9f26ee089bad2e0eba2"><div class="ttname"><a href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71afb218b0110d3f9f26ee089bad2e0eba2">flow::net_flow::Event_set::Event_type::S_SERVER_SOCKET_ACCEPTABLE</a></div><div class="ttdeci">@ S_SERVER_SOCKET_ACCEPTABLE</div><div class="ttdoc">Event type specifying the condition of interest wherein a target Server_socket serv is such that call...</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Server__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Server__socket.html">flow::net_flow::Server_socket</a></div><div class="ttdoc">A server socket able to listen on a single Flow port for incoming connections and return peer sockets...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8hpp_source.html#l00118">server_socket.hpp:126</a></div></div>
@@ -237,13 +237,13 @@
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1asio_html"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1asio.html">flow::net_flow::asio</a></div><div class="ttdoc">Contains classes that add boost.asio integration to the main Flow-protocol classes such as net_flow::...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8cpp_source.html#l00024">node.cpp:25</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1asio_html_a8497776b61df32a79707c264f8f2422b"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1asio.html#a8497776b61df32a79707c264f8f2422b">flow::net_flow::asio::operator&lt;&lt;</a></div><div class="ttdeci">std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const Peer_socket *sock)</div><div class="ttdoc">Prints string representation of given socket to given standard ostream and returns the latter.</div><div class="ttdef"><b>Definition:</b> <a href="asio_2peer__socket_8cpp_source.html#l00251">peer_socket.cpp:251</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_adf23368210219716b6fd22d15b765cb6"><div class="ttname"><a href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">flow::util::Task_engine</a></div><div class="ttdeci">boost::asio::io_service Task_engine</div><div class="ttdoc">Short-hand for boost.asio event service, the central class of boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00135">util_fwd.hpp:135</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
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 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/asio_2server__socket_8hpp.html b/doc/flow_doc/generated/html_full/asio_2server__socket_8hpp.html
index 51b66a3e8..e5097d588 100644
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+++ b/doc/flow_doc/generated/html_full/asio_2server__socket_8hpp.html
@@ -99,7 +99,7 @@
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/asio_2server__socket_8hpp_source.html b/doc/flow_doc/generated/html_full/asio_2server__socket_8hpp_source.html
index 6fd9e14b2..b7ca3857b 100644
--- a/doc/flow_doc/generated/html_full/asio_2server__socket_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/asio_2server__socket_8hpp_source.html
@@ -384,7 +384,7 @@
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 <div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span>} <span class="comment">// namespace flow::net_flow::asio</span></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html">flow::net_flow::Node</a></div><div class="ttdoc">An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00933">node.hpp:937</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Server__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Server__socket.html">flow::net_flow::Server_socket</a></div><div class="ttdoc">A server socket able to listen on a single Flow port for incoming connections and return peer sockets...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8hpp_source.html#l00118">server_socket.hpp:126</a></div></div>
@@ -407,15 +407,15 @@
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1asio_html"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1asio.html">flow::net_flow::asio</a></div><div class="ttdoc">Contains classes that add boost.asio integration to the main Flow-protocol classes such as net_flow::...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8cpp_source.html#l00024">node.cpp:25</a></div></div>
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-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
 <div class="ttc" id="anet__flow__fwd_8hpp_html"><div class="ttname"><a href="net__flow__fwd_8hpp.html">net_flow_fwd.hpp</a></div></div>
 <div class="ttc" id="aserver__socket_8hpp_html"><div class="ttname"><a href="server__socket_8hpp.html">server_socket.hpp</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket__options_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket__options.html">flow::net_flow::Peer_socket_options</a></div><div class="ttdoc">A set of low-level options affecting a single Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="options_8hpp_source.html#l00035">options.hpp:36</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/async_2util_8hpp.html b/doc/flow_doc/generated/html_full/async_2util_8hpp.html
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+++ b/doc/flow_doc/generated/html_full/async_2util_8hpp.html
@@ -96,7 +96,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/async_2util_8hpp_source.html b/doc/flow_doc/generated/html_full/async_2util_8hpp_source.html
index 16266ebe8..72d6b1dd7 100644
--- a/doc/flow_doc/generated/html_full/async_2util_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/async_2util_8hpp_source.html
@@ -243,7 +243,7 @@
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-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Logger_html"><div class="ttname"><a href="classflow_1_1log_1_1Logger.html">flow::log::Logger</a></div><div class="ttdoc">Interface that the user should implement, passing the implementing Logger into logging classes (Flow'...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01287">log.hpp:1291</a></div></div>
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@@ -260,7 +260,7 @@
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/async_8cpp.html b/doc/flow_doc/generated/html_full/async_8cpp.html
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/async_8cpp_source.html b/doc/flow_doc/generated/html_full/async_8cpp_source.html
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 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/async__file__logger_8cpp.html b/doc/flow_doc/generated/html_full/async__file__logger_8cpp.html
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/async__file__logger_8cpp_source.html b/doc/flow_doc/generated/html_full/async__file__logger_8cpp_source.html
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+++ b/doc/flow_doc/generated/html_full/async__file__logger_8cpp_source.html
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-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
 <div class="ttc" id="aserial__file__logger_8hpp_html"><div class="ttname"><a href="serial__file__logger_8hpp.html">serial_file_logger.hpp</a></div></div>
 <div class="ttc" id="astructflow_1_1log_1_1Async__file__logger_1_1Log__request_html"><div class="ttname"><a href="structflow_1_1log_1_1Async__file__logger_1_1Log__request.html">flow::log::Async_file_logger::Log_request</a></div><div class="ttdoc">In addition to the task object (function) itself, these are the data placed onto the queue of m_async...</div><div class="ttdef"><b>Definition:</b> <a href="async__file__logger_8hpp_source.html#l00610">async_file_logger.hpp:611</a></div></div>
 <div class="ttc" id="astructflow_1_1log_1_1Async__file__logger_1_1Log__request_html_a43b7a817420a80d955e4acfd0ec10f45"><div class="ttname"><a href="structflow_1_1log_1_1Async__file__logger_1_1Log__request.html#a43b7a817420a80d955e4acfd0ec10f45">flow::log::Async_file_logger::Log_request::m_msg_size</a></div><div class="ttdeci">size_t m_msg_size</div><div class="ttdoc">Number of characters in m_msg_copy pointee string.</div><div class="ttdef"><b>Definition:</b> <a href="async__file__logger_8hpp_source.html#l00618">async_file_logger.hpp:618</a></div></div>
@@ -670,7 +670,7 @@
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/async__file__logger_8hpp.html b/doc/flow_doc/generated/html_full/async__file__logger_8hpp.html
index 2564b933e..849a01706 100644
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@@ -107,7 +107,7 @@
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 <!-- start footer part -->
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/async__file__logger_8hpp_source.html b/doc/flow_doc/generated/html_full/async__file__logger_8hpp_source.html
index 5680d8ebd..a066619c4 100644
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@@ -891,7 +891,7 @@
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 <div class="ttc" id="anamespaceflow_1_1util_html_ae4dc52186797094b3040379ff19124c9"><div class="ttname"><a href="namespaceflow_1_1util.html#ae4dc52186797094b3040379ff19124c9">flow::util::String_view</a></div><div class="ttdeci">Basic_string_view&lt; char &gt; String_view</div><div class="ttdoc">Commonly used char-based Basic_string_view. See its doc header.</div><div class="ttdef"><b>Definition:</b> <a href="string__view_8hpp_source.html#l00191">string_view.hpp:191</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
 <div class="ttc" id="asingle__thread__task__loop_8hpp_html"><div class="ttname"><a href="single__thread__task__loop_8hpp.html">single_thread_task_loop.hpp</a></div></div>
 <div class="ttc" id="astructflow_1_1log_1_1Async__file__logger_1_1Log__request_html"><div class="ttname"><a href="structflow_1_1log_1_1Async__file__logger_1_1Log__request.html">flow::log::Async_file_logger::Log_request</a></div><div class="ttdoc">In addition to the task object (function) itself, these are the data placed onto the queue of m_async...</div><div class="ttdef"><b>Definition:</b> <a href="async__file__logger_8hpp_source.html#l00610">async_file_logger.hpp:611</a></div></div>
 <div class="ttc" id="astructflow_1_1log_1_1Async__file__logger_1_1Log__request_html_a43b7a817420a80d955e4acfd0ec10f45"><div class="ttname"><a href="structflow_1_1log_1_1Async__file__logger_1_1Log__request.html#a43b7a817420a80d955e4acfd0ec10f45">flow::log::Async_file_logger::Log_request::m_msg_size</a></div><div class="ttdeci">size_t m_msg_size</div><div class="ttdoc">Number of characters in m_msg_copy pointee string.</div><div class="ttdef"><b>Definition:</b> <a href="async__file__logger_8hpp_source.html#l00618">async_file_logger.hpp:618</a></div></div>
@@ -906,7 +906,7 @@
 </div><!-- fragment --></div><!-- contents -->
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/async__fwd_8hpp.html b/doc/flow_doc/generated/html_full/async__fwd_8hpp.html
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@@ -157,7 +157,7 @@
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/async__fwd_8hpp_source.html b/doc/flow_doc/generated/html_full/async__fwd_8hpp_source.html
index 3a04071a9..ddf2d4bc0 100644
--- a/doc/flow_doc/generated/html_full/async__fwd_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/async__fwd_8hpp_source.html
@@ -632,7 +632,7 @@
 <div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span><a class="code hl_typedef" href="namespaceflow_1_1async.html#a2b92feccafa90bce16db57131c0fcd9e">Strand_ptr</a> <a class="code hl_function" href="namespaceflow_1_1async.html#a5dad6aeb3cf4219833e18343bec0b423">op_to_exec_ctx&lt;Strand_ptr&gt;</a>(<a class="code hl_class" href="classflow_1_1async_1_1Concurrent__task__loop.html">Concurrent_task_loop</a>* loop, <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow_1_1async.html#a024042c64b7dc544a7a5587afa4b1949">Op</a>&amp; op);</div>
 <div class="line"><a id="l00561" name="l00561"></a><span class="lineno">  561</span> </div>
 <div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span>} <span class="comment">// namespace flow::async</span></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1async_1_1Concurrent__task__loop_html"><div class="ttname"><a href="classflow_1_1async_1_1Concurrent__task__loop.html">flow::async::Concurrent_task_loop</a></div><div class="ttdoc">The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...</div><div class="ttdef"><b>Definition:</b> <a href="concurrent__task__loop_8hpp_source.html#l00322">concurrent_task_loop.hpp:324</a></div></div>
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@@ -654,13 +654,13 @@
 <div class="ttc" id="anamespaceflow_1_1async_html_af35fb65bdea1a3a92929ec2c4a6a6b72"><div class="ttname"><a href="namespaceflow_1_1async.html#af35fb65bdea1a3a92929ec2c4a6a6b72">flow::async::Task</a></div><div class="ttdeci">Function&lt; void()&gt; Task</div><div class="ttdoc">Short-hand for a task that can be posted for execution by a Concurrent_task_loop or flow::util::Task_...</div><div class="ttdef"><b>Definition:</b> <a href="async__fwd_8hpp_source.html#l00096">async_fwd.hpp:96</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1async_html_af90c1e763d49c3f3033a74871e897394"><div class="ttname"><a href="namespaceflow_1_1async.html#af90c1e763d49c3f3033a74871e897394">flow::async::asio_handler_via_op</a></div><div class="ttdeci">auto asio_handler_via_op(Concurrent_task_loop *loop, const Op &amp;op, Handler &amp;&amp;handler)</div><div class="ttdoc">Given a boost.asio completion handler handler for a boost.asio async_*() action on some boost....</div><div class="ttdef"><b>Definition:</b> <a href="concurrent__task__loop_8hpp_source.html#l00691">concurrent_task_loop.hpp:691</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_aafa03984c5012ef7db2e7d01b6909a83"><div class="ttname"><a href="namespaceflow_1_1util.html#aafa03984c5012ef7db2e7d01b6909a83">flow::util::Scheduled_task</a></div><div class="ttdeci">Function&lt; void(bool short_fire)&gt; Scheduled_task</div><div class="ttdoc">Short-hand for tasks that can be scheduled/fired by schedule_task_from_now() and similar.</div><div class="ttdef"><b>Definition:</b> <a href="sched__task__fwd_8hpp_source.html#l00059">sched_task_fwd.hpp:59</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
 <div class="ttc" id="asched__task__fwd_8hpp_html"><div class="ttname"><a href="sched__task__fwd_8hpp.html">sched_task_fwd.hpp</a></div></div>
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 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/bandwidth_8cpp.html b/doc/flow_doc/generated/html_full/bandwidth_8cpp.html
index 7f2bec0be..53383b841 100644
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/bandwidth_8cpp_source.html b/doc/flow_doc/generated/html_full/bandwidth_8cpp_source.html
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diff --git a/doc/flow_doc/generated/html_full/basic__blob_8hpp_source.html b/doc/flow_doc/generated/html_full/basic__blob_8hpp_source.html
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 <div class="ttc" id="astructflow_1_1perf_1_1Checkpointing__timer_1_1Checkpoint_html_aacbec1a1e5600aeac4e7ca876060552f"><div class="ttname"><a href="structflow_1_1perf_1_1Checkpointing__timer_1_1Checkpoint.html#aacbec1a1e5600aeac4e7ca876060552f">flow::perf::Checkpointing_timer::Checkpoint::m_since_last</a></div><div class="ttdeci">Duration_set m_since_last</div><div class="ttdoc">For the T.checkpoint() call that generated *this, for each enabled Clock_type: Time elapsed since eit...</div><div class="ttdef"><b>Definition:</b> <a href="checkpt__timer_8hpp_source.html#l00212">checkpt_timer.hpp:212</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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@@ -983,7 +983,7 @@ <h3>Logging subtlety for large thread pools</h3>
 
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-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00293">m_est_hw_core_pinning_helps_algo</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00291">m_est_hw_core_sharing_helps_algo</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00295">m_hw_threads_is_grouping_collated</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00289">m_n_threads_or_zero</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00287">m_nickname</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00298">m_qing_threads</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00301">m_shared_task_engine</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00262">n_threads()</a>, <a class="el" href="concurrent__task__loop_8cpp_source.html#l00078">flow::async::optimize_pinning_in_thread_pool()</a>, <a class="el" href="util_2util_8hpp_source.html#l00356">flow::util::ostream_op_string()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00277">post()</a>, and <a class="el" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485a57525f29ac96f4edd56c951e7d7c7b25">flow::async::S_ASYNC_AND_AWAIT_CONCURRENT_COMPLETION</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00293">m_est_hw_core_pinning_helps_algo</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00291">m_est_hw_core_sharing_helps_algo</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00295">m_hw_threads_is_grouping_collated</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00289">m_n_threads_or_zero</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00287">m_nickname</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00298">m_qing_threads</a>, <a class="el" href="x__thread__task__loop_8hpp_source.html#l00301">m_shared_task_engine</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00262">n_threads()</a>, <a class="el" href="concurrent__task__loop_8cpp_source.html#l00078">flow::async::optimize_pinning_in_thread_pool()</a>, <a class="el" href="util_2util_8hpp_source.html#l00381">flow::util::ostream_op_string()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00277">post()</a>, and <a class="el" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485a57525f29ac96f4edd56c951e7d7c7b25">flow::async::S_ASYNC_AND_AWAIT_CONCURRENT_COMPLETION</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="single__thread__task__loop_8cpp_source.html#l00041">flow::async::Single_thread_task_loop::start()</a>.</p>
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@@ -1143,7 +1143,7 @@ <h3>Logging subtlety for large thread pools</h3>
 
 <p class="definition">Definition at line <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00098">98</a> of file <a class="el" href="segregated__thread__task__loop_8cpp_source.html">segregated_thread_task_loop.cpp</a>.</p>
 
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+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="segregated__thread__task__loop_8hpp_source.html#l00280">m_est_hw_core_pinning_helps_algo</a>, <a class="el" href="segregated__thread__task__loop_8hpp_source.html#l00278">m_est_hw_core_sharing_helps_algo</a>, <a class="el" href="segregated__thread__task__loop_8hpp_source.html#l00282">m_hw_threads_is_grouping_collated</a>, <a class="el" href="segregated__thread__task__loop_8hpp_source.html#l00276">m_n_threads_or_zero</a>, <a class="el" href="segregated__thread__task__loop_8hpp_source.html#l00274">m_nickname</a>, <a class="el" href="segregated__thread__task__loop_8hpp_source.html#l00293">m_qing_threads</a>, <a class="el" href="segregated__thread__task__loop_8hpp_source.html#l00300">m_task_engines</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00260">n_threads()</a>, <a class="el" href="concurrent__task__loop_8cpp_source.html#l00078">flow::async::optimize_pinning_in_thread_pool()</a>, <a class="el" href="util_2util_8hpp_source.html#l00381">flow::util::ostream_op_string()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00275">post()</a>, <a class="el" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485a57525f29ac96f4edd56c951e7d7c7b25">flow::async::S_ASYNC_AND_AWAIT_CONCURRENT_COMPLETION</a>, and <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00404">task_engine()</a>.</p>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Config__manager-members.html b/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Config__manager-members.html
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--- a/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Config__manager-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Config__manager-members.html
@@ -138,7 +138,7 @@
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Config__manager.html b/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Config__manager.html
index bc33dae5f..dc141621c 100644
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@@ -670,7 +670,7 @@ <h3>Logging assumption</h3>
 
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-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="cfg__manager_8hpp_source.html#l01346">flow::cfg::Config_manager&lt; S_d_value_set &gt;::m_d_baseline_value_sets</a>, <a class="el" href="cfg__manager_8hpp_source.html#l01377">flow::cfg::Config_manager&lt; S_d_value_set &gt;::m_d_value_sets</a>, <a class="el" href="cfg__manager_8hpp_source.html#l00988">flow::cfg::Config_manager&lt; S_d_value_set &gt;::m_nickname</a>, <a class="el" href="cfg__manager_8hpp_source.html#l01316">flow::cfg::Config_manager&lt; S_d_value_set &gt;::m_s_d_opt_sets</a>, <a class="el" href="util_2util_8hpp_source.html#l00356">flow::util::ostream_op_string()</a>, <a class="el" href="cfg__manager_8hpp_source.html#l00413">flow::cfg::Config_manager&lt; S_d_value_set &gt;::S_N_S_VALUE_SETS</a>, and <a class="el" href="cfg__manager_8hpp_source.html#l00408">flow::cfg::Config_manager&lt; S_d_value_set &gt;::S_N_VALUE_SETS</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="cfg__manager_8hpp_source.html#l01346">flow::cfg::Config_manager&lt; S_d_value_set &gt;::m_d_baseline_value_sets</a>, <a class="el" href="cfg__manager_8hpp_source.html#l01377">flow::cfg::Config_manager&lt; S_d_value_set &gt;::m_d_value_sets</a>, <a class="el" href="cfg__manager_8hpp_source.html#l00988">flow::cfg::Config_manager&lt; S_d_value_set &gt;::m_nickname</a>, <a class="el" href="cfg__manager_8hpp_source.html#l01316">flow::cfg::Config_manager&lt; S_d_value_set &gt;::m_s_d_opt_sets</a>, <a class="el" href="util_2util_8hpp_source.html#l00381">flow::util::ostream_op_string()</a>, <a class="el" href="cfg__manager_8hpp_source.html#l00413">flow::cfg::Config_manager&lt; S_d_value_set &gt;::S_N_S_VALUE_SETS</a>, and <a class="el" href="cfg__manager_8hpp_source.html#l00408">flow::cfg::Config_manager&lt; S_d_value_set &gt;::S_N_VALUE_SETS</a>.</p>
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Dynamic__cfg__context-members.html b/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Dynamic__cfg__context-members.html
index 98174eb79..e10ed2eb6 100644
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@@ -85,7 +85,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Dynamic__cfg__context.html b/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Dynamic__cfg__context.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Option__set-members.html b/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Option__set-members.html
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@@ -131,7 +131,7 @@
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Option__set.html b/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Option__set.html
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@@ -619,7 +619,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aa1f780bfd3a5ff07ade1e367
 
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-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="util_2util_8hpp_source.html#l00276">flow::util::key_exists()</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="util_2util_8hpp_source.html#l00301">flow::util::key_exists()</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="cfg__manager_8hpp_source.html#l01570">flow::cfg::Config_manager&lt; S_d_value_set &gt;::option_set_canonicalize_or_reject()</a>.</p>
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@@ -1098,7 +1098,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a4ca1b50ec692a98865e4afde
 
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-<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="util_2util_8hpp_source.html#l00276">flow::util::key_exists()</a>, <a class="el" href="structflow_1_1cfg_1_1Option__set_1_1Declare__options__func__args.html#ae0e0d11ce1bf4ce971f5e2d75ed6e18d">flow::cfg::Option_set&lt; Value_set &gt;::Declare_options_func_args::m_args</a>, <a class="el" href="option__set_8hpp_source.html#l00465">flow::cfg::Option_set&lt; Value_set &gt;::Declare_options_func_args::m_call_type</a>, <a class="el" href="structflow_1_1cfg_1_1Option__set_1_1Declare__options__func__args.html#a4d18a90df12e3c632a2fd25fdc23224e">flow::cfg::Option_set&lt; Value_set &gt;::Declare_options_func_args::m_compare_parsed_vals_args</a>, <a class="el" href="option__set_8hpp_source.html#l00480">flow::cfg::Option_set&lt; Value_set &gt;::Declare_options_func_args::m_option_set</a>, <a class="el" href="util_2util_8hpp_source.html#l00356">flow::util::ostream_op_string()</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
+<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="util_2util_8hpp_source.html#l00301">flow::util::key_exists()</a>, <a class="el" href="structflow_1_1cfg_1_1Option__set_1_1Declare__options__func__args.html#ae0e0d11ce1bf4ce971f5e2d75ed6e18d">flow::cfg::Option_set&lt; Value_set &gt;::Declare_options_func_args::m_args</a>, <a class="el" href="option__set_8hpp_source.html#l00465">flow::cfg::Option_set&lt; Value_set &gt;::Declare_options_func_args::m_call_type</a>, <a class="el" href="structflow_1_1cfg_1_1Option__set_1_1Declare__options__func__args.html#a4d18a90df12e3c632a2fd25fdc23224e">flow::cfg::Option_set&lt; Value_set &gt;::Declare_options_func_args::m_compare_parsed_vals_args</a>, <a class="el" href="option__set_8hpp_source.html#l00480">flow::cfg::Option_set&lt; Value_set &gt;::Declare_options_func_args::m_option_set</a>, <a class="el" href="util_2util_8hpp_source.html#l00381">flow::util::ostream_op_string()</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
 <div class="dynheader">
 Here is the call graph for this function:</div>
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@@ -1909,7 +1909,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aea72e19fce43c10c84f6445f
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Option__set__base-members.html b/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Option__set__base-members.html
index 8d7307886..c0bea7459 100644
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Option__set__base.html b/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Option__set__base.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Static__config__manager-members.html b/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Static__config__manager-members.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Static__config__manager.html b/doc/flow_doc/generated/html_full/classflow_1_1cfg_1_1Static__config__manager.html
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Async__file__logger.html
@@ -1352,7 +1352,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aa13ef30bc2d66758c29c31dc
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Buffer__logger-members.html b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Buffer__logger-members.html
index 366fca149..2406e391e 100644
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Buffer__logger-members.html
@@ -101,7 +101,7 @@
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Buffer__logger.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Component-members.html b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Component-members.html
index 03ef48e03..6051ffb26 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Component-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Component-members.html
@@ -91,7 +91,7 @@
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Component.html b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Component.html
index 856067ccc..598632747 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Component.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Component.html
@@ -591,7 +591,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a3ff8ff4d75add447b3e10ded
 <div class="line">    <a class="code hl_class" href="classflow_1_1log_1_1Log__context.html">Log_context</a>(..., Cool_log_component::S_WIDGETRY) <span class="comment">// Ditto for your own code.  Use your own enum.</span></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Log__context_html"><div class="ttname"><a href="classflow_1_1log_1_1Log__context.html">flow::log::Log_context</a></div><div class="ttdoc">Convenience class that simply stores a Logger and/or Component passed into a constructor; and returns...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01618">log.hpp:1619</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html">flow::net_flow::Node</a></div><div class="ttdoc">An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00933">node.hpp:937</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
 </div><!-- fragment --><p >Now, <code>this-&gt;get_log_component().<a class="el" href="classflow_1_1log_1_1Component.html#a3ff8ff4d75add447b3e10ded5430833d" title="Returns typeid(Payload), where Payload was the template param used when calling the originating one-a...">payload_type()</a></code> will equal that of <code>Flow_log_component</code> and <code>Cool_log_component</code>, respectively, within those 2 classes. In particular, a custom <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> implementation can use <code><a class="el" href="classflow_1_1log_1_1Component.html#a3ff8ff4d75add447b3e10ded5430833d" title="Returns typeid(Payload), where Payload was the template param used when calling the originating one-a...">payload_type()</a></code> &ndash; and in particular the derived <code><a class="el" href="classflow_1_1log_1_1Component.html#ab071f597ddeee9ad0fdb9e40bff8d988" title="Convenience accessor that returns std::type_index(payload_type()), which can be used most excellently...">payload_type_index()</a></code> &ndash; to interpret the <code><a class="el" href="classflow_1_1log_1_1Component.html" title="A light-weight class, each object storing a component payload encoding an enum value from enum type o...">Component</a></code>s of values from the 2 entirely disparate <code>enum</code>s in different ways. More in particular, the out-of-the-box <code><a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a></code>s use <code><a class="el" href="classflow_1_1log_1_1Config.html" title="Class used to configure the filtering and logging behavior of Loggers; its use in your custom Loggers...">Config</a></code> to do all of that without your having to worry about it (but your own <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> would potentially have to worry about it particularly if not using <a class="el" href="classflow_1_1log_1_1Config.html" title="Class used to configure the filtering and logging behavior of Loggers; its use in your custom Loggers...">log::Config</a>... though we suggest that you should, barring excellent design counter-reasons).</p>
 <dl class="section return"><dt>Returns</dt><dd>See above. </dd></dl>
 
@@ -723,7 +723,7 @@ <h3>Rationale</h3>
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config-members.html b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config-members.html
index 4c95f85e8..bd689d399 100644
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config-members.html
@@ -109,7 +109,7 @@
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config.html b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config.html
index 31443e46c..98c6869cd 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config.html
@@ -860,7 +860,7 @@ <h3><code>component_names</code> meaning</h3>
 
 <p class="definition">Definition at line <a class="el" href="config_8hpp_source.html#l00970">970</a> of file <a class="el" href="config_8hpp_source.html">config.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="config_8cpp_source.html#l00040">component_to_union_idx()</a>, <a class="el" href="util_2util_8hpp_source.html#l00276">flow::util::key_exists()</a>, <a class="el" href="config_8hpp_source.html#l00916">m_component_names_by_union_idx</a>, <a class="el" href="config_8hpp_source.html#l00923">m_component_union_idxs_by_name</a>, <a class="el" href="config_8cpp_source.html#l00242">normalize_component_name()</a>, and <a class="el" href="config_8cpp_source.html#l00233">normalized_component_name()</a>.</p>
+<p class="reference">References <a class="el" href="config_8cpp_source.html#l00040">component_to_union_idx()</a>, <a class="el" href="util_2util_8hpp_source.html#l00301">flow::util::key_exists()</a>, <a class="el" href="config_8hpp_source.html#l00916">m_component_names_by_union_idx</a>, <a class="el" href="config_8hpp_source.html#l00923">m_component_union_idxs_by_name</a>, <a class="el" href="config_8cpp_source.html#l00242">normalize_component_name()</a>, and <a class="el" href="config_8cpp_source.html#l00233">normalized_component_name()</a>.</p>
 <div class="dynheader">
 Here is the call graph for this function:</div>
 <div class="dyncontent">
@@ -929,7 +929,7 @@ <h3>Rationale for <code>enum_sparse_length</code></h3>
 
 <p class="definition">Definition at line <a class="el" href="config_8hpp_source.html#l00929">929</a> of file <a class="el" href="config_8hpp_source.html">config.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00276">flow::util::key_exists()</a>, <a class="el" href="config_8hpp_source.html#l00862">m_component_cfgs_by_payload_type</a>, and <a class="el" href="config_8hpp_source.html#l00906">m_verbosities_by_component</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00301">flow::util::key_exists()</a>, <a class="el" href="config_8hpp_source.html#l00862">m_component_cfgs_by_payload_type</a>, and <a class="el" href="config_8hpp_source.html#l00906">m_verbosities_by_component</a>.</p>
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@@ -1629,7 +1629,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a94e6c81a4e3dd9b41c1b468f
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config_1_1Atomic__raw__sev-members.html b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config_1_1Atomic__raw__sev-members.html
index 71a4c1e6e..cfb6d2e7e 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config_1_1Atomic__raw__sev-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config_1_1Atomic__raw__sev-members.html
@@ -78,7 +78,7 @@
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config_1_1Atomic__raw__sev.html b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config_1_1Atomic__raw__sev.html
index eeb6e56f7..5b6a65e35 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config_1_1Atomic__raw__sev.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Config_1_1Atomic__raw__sev.html
@@ -171,7 +171,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a698747fabbaff0c6083b61e0
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Log__context-members.html b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Log__context-members.html
index f96523519..fa7d639a0 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Log__context-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Log__context-members.html
@@ -87,7 +87,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Log__context.html b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Log__context.html
index ca62b87a2..ccb675d41 100644
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Log__context.html
@@ -365,7 +365,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a8a5fef42dc2cedf3c0d1a6e8
 
 <p class="reference">References <a class="el" href="log_8hpp_source.html#l01721">m_component</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02936">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks()</a>, <a class="el" href="checkpt__timer_8cpp_source.html#l00029">flow::perf::Checkpointing_timer::Checkpointing_timer()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00381">flow::net_flow::Low_lvl_packet::create_from_raw_data_packet()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">flow::net_flow::Node::handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03266">flow::net_flow::Node::log_accumulated_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01904">flow::net_flow::Node::log_rcv_window()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03635">flow::net_flow::Node::log_snd_window()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00497">flow::net_flow::Node::low_lvl_packet_sent()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00422">flow::net_flow::Node::mark_data_packet_sent()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00319">flow::async::Cross_thread_task_loop::schedule_from_now()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00374">flow::async::Segregated_thread_task_loop::schedule_from_now_impl()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00130">flow::net_flow::Low_lvl_packet::serialize_to_raw_data_and_log()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03781">flow::net_flow::Node::snd_flying_pkts_erase_one()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03818">flow::net_flow::Node::snd_flying_pkts_push_one()</a>, and <a class="el" href="drop__timer_8cpp_source.html#l00347">flow::net_flow::Drop_timer::start_timer()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02942">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks()</a>, <a class="el" href="checkpt__timer_8cpp_source.html#l00029">flow::perf::Checkpointing_timer::Checkpointing_timer()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00381">flow::net_flow::Low_lvl_packet::create_from_raw_data_packet()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">flow::net_flow::Node::handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03272">flow::net_flow::Node::log_accumulated_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01910">flow::net_flow::Node::log_rcv_window()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03641">flow::net_flow::Node::log_snd_window()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00497">flow::net_flow::Node::low_lvl_packet_sent()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00422">flow::net_flow::Node::mark_data_packet_sent()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00319">flow::async::Cross_thread_task_loop::schedule_from_now()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00374">flow::async::Segregated_thread_task_loop::schedule_from_now_impl()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00130">flow::net_flow::Low_lvl_packet::serialize_to_raw_data_and_log()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03787">flow::net_flow::Node::snd_flying_pkts_erase_one()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03824">flow::net_flow::Node::snd_flying_pkts_push_one()</a>, and <a class="el" href="drop__timer_8cpp_source.html#l00347">flow::net_flow::Drop_timer::start_timer()</a>.</p>
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@@ -398,7 +398,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#af4db395042b065b00398cd59
 
 <p class="reference">References <a class="el" href="log_8hpp_source.html#l01719">m_logger</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05857">flow::net_flow::Node::async_low_lvl_ack_send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05839">flow::net_flow::Node::async_low_lvl_syn_ack_ack_send_or_close_immediately()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00586">flow::net_flow::Node::async_no_sock_low_lvl_rst_send()</a>, <a class="el" href="asio_2node_8hpp_source.html#l00581">flow::net_flow::asio::Node::async_op()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05397">flow::net_flow::Node::async_rcv_wnd_recovery()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01033">flow::net_flow::Node::async_sock_low_lvl_rst_send()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00255">flow::net_flow::Node::async_wait_latency_then_handle_incoming()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04447">flow::net_flow::Node::cancel_timers()</a>, <a class="el" href="peer__socket_8cpp_source.html#l02936">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05615">flow::net_flow::Node::close_abruptly()</a>, <a class="el" href="cfg__manager_8hpp_source.html#l01471">flow::cfg::Config_manager&lt; S_d_value_set &gt;::Config_manager()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03951">flow::net_flow::Node::connect_with_metadata()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04005">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="checkpt__timer_8cpp_source.html#l00372">flow::perf::Checkpointing_timer::Aggregator::create_aggregated_result()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05811">flow::net_flow::Node::create_syn()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05826">flow::net_flow::Node::create_syn_ack()</a>, <a class="el" href="event__set_8cpp_source.html#l01273">flow::net_flow::Node::event_set_close()</a>, <a class="el" href="event__set_8cpp_source.html#l00881">flow::net_flow::Node::event_set_create()</a>, <a class="el" href="socket__buffer_8cpp_source.html#l00039">flow::net_flow::Socket_buffer::feed_buf_move()</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00391">flow::net_flow::Socket_buffer::feed_bufs_copy()</a>, <a class="el" href="node_8cpp_source.html#l00426">flow::net_flow::Node::handle_incoming()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00187">flow::net_flow::Node::handle_incoming_with_simulation()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">flow::net_flow::Node::handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">flow::net_flow::Node::handle_syn_to_listening_server()</a>, <a class="el" href="server__socket_8cpp_source.html#l00144">flow::net_flow::Node::listen()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03266">flow::net_flow::Node::log_accumulated_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01904">flow::net_flow::Node::log_rcv_window()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03635">flow::net_flow::Node::log_snd_window()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00497">flow::net_flow::Node::low_lvl_packet_sent()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00422">flow::net_flow::Node::mark_data_packet_sent()</a>, <a class="el" href="node_8cpp_source.html#l01117">flow::net_flow::Node::perform_regular_infrequent_tasks()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00277">flow::async::Cross_thread_task_loop::post()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00360">flow::async::Segregated_thread_task_loop::post_impl()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05485">flow::net_flow::Node::receive_wnd_recovery_data_received()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00319">flow::async::Cross_thread_task_loop::schedule_from_now()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00374">flow::async::Segregated_thread_task_loop::schedule_from_now_impl()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00029">flow::async::Segregated_thread_task_loop::Segregated_thread_task_loop()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04792">flow::net_flow::Node::send_worker()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00130">flow::net_flow::Low_lvl_packet::serialize_to_raw_data_and_log()</a>, <a class="el" href="node_8hpp_source.html#l04199">flow::net_flow::Node::serv_create_forward_plus_ctor_args()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04323">flow::net_flow::Node::setup_connection_timers()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04498">flow::net_flow::Node::setup_drop_timer()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03781">flow::net_flow::Node::snd_flying_pkts_erase_one()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03818">flow::net_flow::Node::snd_flying_pkts_push_one()</a>, <a class="el" href="node_8hpp_source.html#l04193">flow::net_flow::Node::sock_create_forward_plus_ctor_args()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01320">flow::net_flow::Node::sock_data_to_reassembly_q_unless_overflow()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06338">flow::net_flow::Node::sock_info()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01244">flow::net_flow::Node::sock_track_new_data_after_gap_rexmit_off()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00098">flow::async::Segregated_thread_task_loop::start()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00081">flow::async::Cross_thread_task_loop::start()</a>, <a class="el" href="drop__timer_8cpp_source.html#l00347">flow::net_flow::Drop_timer::start_timer()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01045">flow::net_flow::Node::sync_sock_low_lvl_rst_send()</a>, <a class="el" href="task__qing__thread_8cpp_source.html#l00036">flow::async::Task_qing_thread::Task_qing_thread()</a>, <a class="el" href="node_8cpp_source.html#l00113">flow::net_flow::Node::this_thread_init_logger_setup()</a>, and <a class="el" href="node_8cpp_source.html#l00151">flow::net_flow::Node::worker_run()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05863">flow::net_flow::Node::async_low_lvl_ack_send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05845">flow::net_flow::Node::async_low_lvl_syn_ack_ack_send_or_close_immediately()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00586">flow::net_flow::Node::async_no_sock_low_lvl_rst_send()</a>, <a class="el" href="asio_2node_8hpp_source.html#l00581">flow::net_flow::asio::Node::async_op()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05403">flow::net_flow::Node::async_rcv_wnd_recovery()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01033">flow::net_flow::Node::async_sock_low_lvl_rst_send()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00255">flow::net_flow::Node::async_wait_latency_then_handle_incoming()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04453">flow::net_flow::Node::cancel_timers()</a>, <a class="el" href="peer__socket_8cpp_source.html#l02942">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05621">flow::net_flow::Node::close_abruptly()</a>, <a class="el" href="cfg__manager_8hpp_source.html#l01471">flow::cfg::Config_manager&lt; S_d_value_set &gt;::Config_manager()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03957">flow::net_flow::Node::connect_with_metadata()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04011">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="checkpt__timer_8cpp_source.html#l00372">flow::perf::Checkpointing_timer::Aggregator::create_aggregated_result()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05817">flow::net_flow::Node::create_syn()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05832">flow::net_flow::Node::create_syn_ack()</a>, <a class="el" href="event__set_8cpp_source.html#l01273">flow::net_flow::Node::event_set_close()</a>, <a class="el" href="event__set_8cpp_source.html#l00881">flow::net_flow::Node::event_set_create()</a>, <a class="el" href="socket__buffer_8cpp_source.html#l00039">flow::net_flow::Socket_buffer::feed_buf_move()</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00391">flow::net_flow::Socket_buffer::feed_bufs_copy()</a>, <a class="el" href="node_8cpp_source.html#l00426">flow::net_flow::Node::handle_incoming()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00187">flow::net_flow::Node::handle_incoming_with_simulation()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">flow::net_flow::Node::handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">flow::net_flow::Node::handle_syn_to_listening_server()</a>, <a class="el" href="server__socket_8cpp_source.html#l00144">flow::net_flow::Node::listen()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03272">flow::net_flow::Node::log_accumulated_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01910">flow::net_flow::Node::log_rcv_window()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03641">flow::net_flow::Node::log_snd_window()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00497">flow::net_flow::Node::low_lvl_packet_sent()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00422">flow::net_flow::Node::mark_data_packet_sent()</a>, <a class="el" href="node_8cpp_source.html#l01117">flow::net_flow::Node::perform_regular_infrequent_tasks()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00277">flow::async::Cross_thread_task_loop::post()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00360">flow::async::Segregated_thread_task_loop::post_impl()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05491">flow::net_flow::Node::receive_wnd_recovery_data_received()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00319">flow::async::Cross_thread_task_loop::schedule_from_now()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00374">flow::async::Segregated_thread_task_loop::schedule_from_now_impl()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00029">flow::async::Segregated_thread_task_loop::Segregated_thread_task_loop()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04798">flow::net_flow::Node::send_worker()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00130">flow::net_flow::Low_lvl_packet::serialize_to_raw_data_and_log()</a>, <a class="el" href="node_8hpp_source.html#l04199">flow::net_flow::Node::serv_create_forward_plus_ctor_args()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04329">flow::net_flow::Node::setup_connection_timers()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04504">flow::net_flow::Node::setup_drop_timer()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03787">flow::net_flow::Node::snd_flying_pkts_erase_one()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03824">flow::net_flow::Node::snd_flying_pkts_push_one()</a>, <a class="el" href="node_8hpp_source.html#l04193">flow::net_flow::Node::sock_create_forward_plus_ctor_args()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01320">flow::net_flow::Node::sock_data_to_reassembly_q_unless_overflow()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06344">flow::net_flow::Node::sock_info()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01244">flow::net_flow::Node::sock_track_new_data_after_gap_rexmit_off()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00098">flow::async::Segregated_thread_task_loop::start()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00081">flow::async::Cross_thread_task_loop::start()</a>, <a class="el" href="drop__timer_8cpp_source.html#l00347">flow::net_flow::Drop_timer::start_timer()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01045">flow::net_flow::Node::sync_sock_low_lvl_rst_send()</a>, <a class="el" href="task__qing__thread_8cpp_source.html#l00036">flow::async::Task_qing_thread::Task_qing_thread()</a>, <a class="el" href="node_8cpp_source.html#l00113">flow::net_flow::Node::this_thread_init_logger_setup()</a>, and <a class="el" href="node_8cpp_source.html#l00151">flow::net_flow::Node::worker_run()</a>.</p>
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 Here is the caller graph for this function:</div>
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Logger.html b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Logger.html
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Logger.html
@@ -663,7 +663,7 @@ <h3>Naming rationale</h3>
 
 <p class="definition">Definition at line <a class="el" href="log_8cpp_source.html#l00036">36</a> of file <a class="el" href="log_8cpp_source.html">log.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00405">FLOW_LOG_SET_CONTEXT</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="util_2util_8hpp_source.html#l00356">flow::util::ostream_op_string()</a>, and <a class="el" href="log_8hpp_source.html#l01561">s_this_thread_nickname_ptr</a>.</p>
+<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00405">FLOW_LOG_SET_CONTEXT</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="util_2util_8hpp_source.html#l00381">flow::util::ostream_op_string()</a>, and <a class="el" href="log_8hpp_source.html#l01561">s_this_thread_nickname_ptr</a>.</p>
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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index 25d0c8a0a..d6f208f15 100644
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@@ -94,7 +94,7 @@
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Ostream__log__msg__writer.html b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Ostream__log__msg__writer.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Thread__local__string__appender.html b/doc/flow_doc/generated/html_full/classflow_1_1log_1_1Thread__local__string__appender.html
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 <div class="ttc" id="aclassflow_1_1util_1_1Unique__id__holder_html"><div class="ttname"><a href="classflow_1_1util_1_1Unique__id__holder.html">flow::util::Unique_id_holder</a></div><div class="ttdoc">Each object of this class stores (at construction) and returns (on demand) a numeric ID unique from a...</div><div class="ttdef"><b>Definition:</b> <a href="uniq__id__holder_8hpp_source.html#l00106">uniq_id_holder.hpp:107</a></div></div>
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+<div class="ttc" id="anamespaceflow_1_1util_html_a8afd30c50bcd670d45442df49d1da484"><div class="ttname"><a href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">flow::util::ostream_op_to_string</a></div><div class="ttdeci">void ostream_op_to_string(std::string *target_str, T const &amp;... ostream_args)</div><div class="ttdoc">Writes to the specified string, as if the given arguments were each passed, via &lt;&lt; in sequence,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00367">util.hpp:367</a></div></div>
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 <h3>Thread safety</h3>
 <p >Well, see above. If you use class as prescribed, then it's safe to read and write without locking around object of this class.</p>
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+<p class="reference">References <a class="el" href="verbosity__config_8hpp_source.html#l00140">m_component_sev_pairs</a>, <a class="el" href="verbosity__config_8hpp_source.html#l00143">m_last_result_message</a>, and <a class="el" href="util_2util_8hpp_source.html#l00381">flow::util::ostream_op_string()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="verbosity__config_8cpp_source.html#l00044">44</a> of file <a class="el" href="verbosity__config_8cpp_source.html">verbosity_config.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="verbosity__config_8hpp_source.html#l00140">m_component_sev_pairs</a>, <a class="el" href="verbosity__config_8hpp_source.html#l00143">m_last_result_message</a>, <a class="el" href="util_2util_8hpp_source.html#l00356">flow::util::ostream_op_string()</a>, <a class="el" href="verbosity__config_8hpp_source.html#l00052">S_ALL_COMPONENT_NAME_ALIAS</a>, <a class="el" href="config_8hpp_source.html#l00219">flow::log::Config::S_MOST_VERBOSE_SEV_DEFAULT</a>, <a class="el" href="verbosity__config_8hpp_source.html#l00058">S_PAIR_SEPARATOR</a>, and <a class="el" href="verbosity__config_8hpp_source.html#l00055">S_TOKEN_SEPARATOR</a>.</p>
+<p class="reference">References <a class="el" href="verbosity__config_8hpp_source.html#l00140">m_component_sev_pairs</a>, <a class="el" href="verbosity__config_8hpp_source.html#l00143">m_last_result_message</a>, <a class="el" href="util_2util_8hpp_source.html#l00381">flow::util::ostream_op_string()</a>, <a class="el" href="verbosity__config_8hpp_source.html#l00052">S_ALL_COMPONENT_NAME_ALIAS</a>, <a class="el" href="config_8hpp_source.html#l00219">flow::log::Config::S_MOST_VERBOSE_SEV_DEFAULT</a>, <a class="el" href="verbosity__config_8hpp_source.html#l00058">S_PAIR_SEPARATOR</a>, and <a class="el" href="verbosity__config_8hpp_source.html#l00055">S_TOKEN_SEPARATOR</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="verbosity__config_8cpp_source.html#l00204">operator&gt;&gt;()</a>.</p>
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04005">flow::net_flow::Node::connect_worker()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00433">flow::net_flow::Node::handle_syn_to_listening_server()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04011">flow::net_flow::Node::connect_worker()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00433">flow::net_flow::Node::handle_syn_to_listening_server()</a>.</p>
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Congestion__control__strategy-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Congestion__control__strategy-members.html
index f2f86715e..6ad7dee0c 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Congestion__control__strategy-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Congestion__control__strategy-members.html
@@ -97,7 +97,7 @@
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Congestion__control__strategy.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Congestion__control__strategy.html
index 1cb0d3469..5bb555d0d 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Congestion__control__strategy.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Congestion__control__strategy.html
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Drop__timer-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Drop__timer-members.html
index 14560845e..53fe255f7 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Drop__timer-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Drop__timer-members.html
@@ -122,7 +122,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Drop__timer.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Drop__timer.html
index 26123bc52..dfd71346d 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Drop__timer.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Drop__timer.html
@@ -514,7 +514,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a64def367e38954d8a392cdf9
 
 <p class="reference">References <a class="el" href="drop__timer_8cpp_source.html#l00293">Drop_timer()</a>, and <a class="el" href="drop__timer_8cpp_source.html#l00571">timer_failure()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04498">flow::net_flow::Node::setup_drop_timer()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04504">flow::net_flow::Node::setup_drop_timer()</a>.</p>
 <div class="dynheader">
 Here is the call graph for this function:</div>
 <div class="dyncontent">
@@ -620,7 +620,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a45d4cf2dfecc2cd5c35f452c
 
 <p class="definition">Definition at line <a class="el" href="drop__timer_8cpp_source.html#l00118">118</a> of file <a class="el" href="drop__timer_8cpp_source.html">drop_timer.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="drop__timer_8cpp_source.html#l00452">disable_timer()</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="util_2util_8hpp_source.html#l00276">flow::util::key_exists()</a>, <a class="el" href="drop__timer_8hpp_source.html#l00459">m_at_events_start_oldest_flying_packet</a>, <a class="el" href="drop__timer_8hpp_source.html#l00467">m_during_events_newest_acked_packet</a>, <a class="el" href="drop__timer_8hpp_source.html#l00453">m_flying_packets</a>, <a class="el" href="drop__timer_8hpp_source.html#l00473">m_in_events_group</a>, <a class="el" href="drop__timer_8hpp_source.html#l00392">m_sock</a>, and <a class="el" href="drop__timer_8cpp_source.html#l00347">start_timer()</a>.</p>
+<p class="reference">References <a class="el" href="drop__timer_8cpp_source.html#l00452">disable_timer()</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="util_2util_8hpp_source.html#l00301">flow::util::key_exists()</a>, <a class="el" href="drop__timer_8hpp_source.html#l00459">m_at_events_start_oldest_flying_packet</a>, <a class="el" href="drop__timer_8hpp_source.html#l00467">m_during_events_newest_acked_packet</a>, <a class="el" href="drop__timer_8hpp_source.html#l00453">m_flying_packets</a>, <a class="el" href="drop__timer_8hpp_source.html#l00473">m_in_events_group</a>, <a class="el" href="drop__timer_8hpp_source.html#l00392">m_sock</a>, and <a class="el" href="drop__timer_8cpp_source.html#l00347">start_timer()</a>.</p>
 <div class="dynheader">
 Here is the call graph for this function:</div>
 <div class="dyncontent">
@@ -724,7 +724,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a477fd69a6978cc228b8e8061
 
 <p class="definition">Definition at line <a class="el" href="drop__timer_8cpp_source.html#l00072">72</a> of file <a class="el" href="drop__timer_8cpp_source.html">drop_timer.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="util_2util_8hpp_source.html#l00276">flow::util::key_exists()</a>, <a class="el" href="drop__timer_8hpp_source.html#l00467">m_during_events_newest_acked_packet</a>, <a class="el" href="drop__timer_8hpp_source.html#l00453">m_flying_packets</a>, and <a class="el" href="drop__timer_8hpp_source.html#l00473">m_in_events_group</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="util_2util_8hpp_source.html#l00301">flow::util::key_exists()</a>, <a class="el" href="drop__timer_8hpp_source.html#l00467">m_during_events_newest_acked_packet</a>, <a class="el" href="drop__timer_8hpp_source.html#l00453">m_flying_packets</a>, and <a class="el" href="drop__timer_8hpp_source.html#l00473">m_in_events_group</a>.</p>
 <div class="dynheader">
 Here is the call graph for this function:</div>
 <div class="dyncontent">
@@ -1336,7 +1336,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a9528326a35b021bb859bed94
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set-members.html
index e9c5e7313..093f536a9 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set-members.html
@@ -137,7 +137,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set.html
index 3455feaec..880db1811 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set.html
@@ -1310,7 +1310,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a19e241ae4dfe1ea54de60270
 
 <p class="definition">Definition at line <a class="el" href="event__set_8cpp_source.html#l00761">761</a> of file <a class="el" href="event__set_8cpp_source.html">event_set.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00342">flow::util::ostream_op_to_string()</a>, and <a class="el" href="linked__hash__map_8hpp_source.html#l01070">flow::util::Linked_hash_map&lt; Key, Mapped, Hash, Pred &gt;::size()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00367">flow::util::ostream_op_to_string()</a>, and <a class="el" href="linked__hash__map_8hpp_source.html#l01070">flow::util::Linked_hash_map&lt; Key, Mapped, Hash, Pred &gt;::size()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="event__set_8cpp_source.html#l00705">clear()</a>, <a class="el" href="event__set_8cpp_source.html#l01129">flow::net_flow::Node::event_set_all_check_delta()</a>, and <a class="el" href="event__set_8cpp_source.html#l00576">events_detected()</a>.</p>
 <div class="dynheader">
@@ -1639,7 +1639,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ae04c117b15179ba37a94f683
 
 <p class="definition">Definition at line <a class="el" href="event__set_8cpp_source.html#l00777">777</a> of file <a class="el" href="event__set_8cpp_source.html">event_set.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00342">flow::util::ostream_op_to_string()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00367">flow::util::ostream_op_to_string()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="event__set_8cpp_source.html#l01129">flow::net_flow::Node::event_set_all_check_delta()</a>, and <a class="el" href="event__set_8cpp_source.html#l01017">flow::net_flow::Node::event_set_check_baseline()</a>.</p>
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@@ -2304,7 +2304,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aa321c69146b8575e4d0e3b15
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__equals-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__equals-members.html
index aab91a60b..63b18ca09 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__equals-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__equals-members.html
@@ -77,7 +77,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__equals.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__equals.html
index cb039dd8f..eaeb80b8e 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__equals.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__equals.html
@@ -138,7 +138,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a2651cf79dd65bdc60707ff3a
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__hash-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__hash-members.html
index 9ffe18e2c..4b2c98386 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__hash-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__hash-members.html
@@ -77,7 +77,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__hash.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__hash.html
index bb1d5620f..504fe3d67 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__hash.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__hash.html
@@ -127,7 +127,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#acdda0f516ad0c1e562ff1797
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Net__env__simulator-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Net__env__simulator-members.html
index 640d50ee9..df290992a 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Net__env__simulator-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Net__env__simulator-members.html
@@ -106,7 +106,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Net__env__simulator.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Net__env__simulator.html
index 30d7b180f..5c5bb7f0b 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Net__env__simulator.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Net__env__simulator.html
@@ -734,7 +734,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ac532250636f3ae5b045310e9
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Node-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Node-members.html
index d5a6e1695..7c683101d 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Node-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Node-members.html
@@ -273,7 +273,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Node.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Node.html
index 5661f2250..cb6561ee7 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Node.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Node.html
@@ -1357,11 +1357,11 @@ <h2 class="memtitle"><span class="permalink"><a href="#a80d58cfa8fad00a116a38f76
   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06456">6456</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06462">6462</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l06456">advance_seq_num()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l06462">advance_seq_num()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06456">advance_seq_num()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06479">get_seq_num_range()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04792">send_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06462">advance_seq_num()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06485">get_seq_num_range()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04798">send_worker()</a>.</p>
 <div class="dynheader">
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+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06474">6474</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05857">5857</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05863">5863</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8cpp_source.html#l01112">max_block_size()</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05518">sock_rcv_wnd()</a>.</p>
+<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8cpp_source.html#l01112">max_block_size()</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05524">sock_rcv_wnd()</a>.</p>
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 <dl class="section return"><dt>Returns</dt><dd>See <a class="el" href="classflow_1_1net__flow_1_1Node.html#a0db2bb587e0407077b11368df075f0ff" title="async_low_lvl_packet_send_impl() wrapper to call when packet is to be sent to the remote side of the ...">async_sock_low_lvl_packet_send()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05839">5839</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05845">5845</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05518">sock_rcv_wnd()</a>.</p>
+<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05524">sock_rcv_wnd()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05397">5397</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05403">5403</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l05397">async_rcv_wnd_recovery()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, <a class="el" href="sched__task_8hpp_source.html#l00034">flow::util::schedule_task_from_now()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05518">sock_rcv_wnd()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l05403">async_rcv_wnd_recovery()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, <a class="el" href="sched__task_8hpp_source.html#l00034">flow::util::schedule_task_from_now()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05524">sock_rcv_wnd()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05397">async_rcv_wnd_recovery()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05263">receive_wnd_updated()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05403">async_rcv_wnd_recovery()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05269">receive_wnd_updated()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="low__lvl__io_8cpp_source.html#l01019">1019</a> of file <a class="el" href="low__lvl__io_8cpp_source.html">low_lvl_io.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l00605">async_sock_low_lvl_packet_send_paced()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l00605">async_sock_low_lvl_packet_send_paced()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05857">async_low_lvl_ack_send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05839">async_low_lvl_syn_ack_ack_send_or_close_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05397">async_rcv_wnd_recovery()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04402">handle_connection_rexmit_timer_event()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04792">send_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05863">async_low_lvl_ack_send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05845">async_low_lvl_syn_ack_ack_send_or_close_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05403">async_rcv_wnd_recovery()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04408">handle_connection_rexmit_timer_event()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04798">send_worker()</a>.</p>
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 <p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l00605">async_sock_low_lvl_packet_send_paced()</a>, and <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05803">rst_and_close_connection_immediately()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05809">rst_and_close_connection_immediately()</a>.</p>
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 <dl class="section return"><dt>Returns</dt><dd><code>true</code> if should send; <code>false</code> if should wait until it becomes <code>true</code> and THEN send. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05039">5039</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05045">5045</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04792">send_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04798">send_worker()</a>.</p>
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+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04453">4453</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, and <a class="el" href="sched__task_8cpp_source.html#l00026">flow::util::scheduled_task_cancel()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>.</p>
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 <dl class="section return"><dt>Returns</dt><dd><code>false</code> if and only if the ack is sufficiently invalid to have made this method close the socket. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l02545">2545</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l02551">2551</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="util_2util_8hpp_source.html#l00270">flow::util::in_open_open_range()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02254">flow::net_flow::Peer_socket::Sent_packet::m_packet</a>, <a class="el" href="peer__socket_8hpp_source.html#l02220">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a>, <a class="el" href="peer__socket_8hpp_source.html#l02198">flow::net_flow::Peer_socket::Sent_packet::m_size</a>, <a class="el" href="peer__socket_8cpp_source.html#l00373">flow::net_flow::Peer_socket::rexmit_on()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a8ad7147a3e4e63313c7a5954790cd458">flow::net_flow::error::S_SEQ_NUM_ARITHMETIC_FAILURE</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a891201a96c5838bbb24cc9ed08b47765">flow::net_flow::error::S_SEQ_NUM_IMPLIES_CONNECTION_COLLISION</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="util_2util_8hpp_source.html#l00295">flow::util::in_open_open_range()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02255">flow::net_flow::Peer_socket::Sent_packet::m_packet</a>, <a class="el" href="peer__socket_8hpp_source.html#l02221">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a>, <a class="el" href="peer__socket_8hpp_source.html#l02199">flow::net_flow::Peer_socket::Sent_packet::m_size</a>, <a class="el" href="peer__socket_8cpp_source.html#l00373">flow::net_flow::Peer_socket::rexmit_on()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a8ad7147a3e4e63313c7a5954790cd458">flow::net_flow::error::S_SEQ_NUM_ARITHMETIC_FAILURE</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a891201a96c5838bbb24cc9ed08b47765">flow::net_flow::error::S_SEQ_NUM_IMPLIES_CONNECTION_COLLISION</a>.</p>
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 <dl class="section return"><dt>Returns</dt><dd>Iterator into <code>sock-&gt;m_snd_flying_pkts_by_sent_when</code> indicating the latest-sent packet that should be Dropped due to acks; <code>past_oldest()</code> a/k/a <code>end()</code> if none should be so Dropped. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l02936">2936</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l02942">2942</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02239">flow::net_flow::Peer_socket::Sent_packet::m_acks_after_me</a>, <a class="el" href="peer__socket_8hpp_source.html#l02297">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_order_num</a>, <a class="el" href="peer__socket_8hpp_source.html#l02220">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02240">flow::net_flow::Peer_socket::Sent_packet::m_acks_after_me</a>, <a class="el" href="peer__socket_8hpp_source.html#l02298">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_order_num</a>, <a class="el" href="peer__socket_8hpp_source.html#l02221">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05615">5615</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05621">5621</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="async_2util_8hpp_source.html#l00031">flow::async::asio_exec_ctx_post()</a>, <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="peer__socket_8cpp_source.html#l05803">rst_and_close_connection_immediately()</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a35606f4143e15dbe6bc03a543599dec8">flow::net_flow::error::S_USER_CLOSED_ABRUPTLY</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="async_2util_8hpp_source.html#l00031">flow::async::asio_exec_ctx_post()</a>, <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="peer__socket_8cpp_source.html#l05809">rst_and_close_connection_immediately()</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a35606f4143e15dbe6bc03a543599dec8">flow::net_flow::error::S_USER_CLOSED_ABRUPTLY</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00269">flow::net_flow::Peer_socket::close_abruptly()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05683">5683</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05689">5689</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l04447">cancel_timers()</a>, <a class="el" href="event__set_8cpp_source.html#l01129">event_set_all_check_delta()</a>, <a class="el" href="error_2error_8hpp_source.html#l00233">FLOW_ERROR_LOG_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="linked__hash__map_8hpp_source.html#l00761">flow::util::Linked_hash_map&lt; Key, Mapped, Hash, Pred &gt;::insert()</a>, <a class="el" href="node_8hpp_source.html#l03777">m_ports</a>, <a class="el" href="node_8hpp_source.html#l03798">m_servs</a>, <a class="el" href="node_8hpp_source.html#l03830">m_sock_events</a>, <a class="el" href="node_8hpp_source.html#l03792">m_socks</a>, <a class="el" href="port__space_8cpp_source.html#l00175">flow::net_flow::Port_space::return_port()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a7cedcbdde2b86daeb1268c63c6cb6b88">flow::net_flow::Event_set::S_PEER_SOCKET_READABLE</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">flow::net_flow::Event_set::S_PEER_SOCKET_WRITABLE</a>, <a class="el" href="server__socket_8cpp_source.html#l00786">serv_peer_socket_closed()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06155">sock_disconnect_completed()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06134">sock_disconnect_detected()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06382">sock_load_info_struct()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06435">sock_log_detail()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06103">sock_set_int_state()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l04453">cancel_timers()</a>, <a class="el" href="event__set_8cpp_source.html#l01129">event_set_all_check_delta()</a>, <a class="el" href="error_2error_8hpp_source.html#l00233">FLOW_ERROR_LOG_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="linked__hash__map_8hpp_source.html#l00761">flow::util::Linked_hash_map&lt; Key, Mapped, Hash, Pred &gt;::insert()</a>, <a class="el" href="node_8hpp_source.html#l03777">m_ports</a>, <a class="el" href="node_8hpp_source.html#l03798">m_servs</a>, <a class="el" href="node_8hpp_source.html#l03830">m_sock_events</a>, <a class="el" href="node_8hpp_source.html#l03792">m_socks</a>, <a class="el" href="port__space_8cpp_source.html#l00175">flow::net_flow::Port_space::return_port()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a7cedcbdde2b86daeb1268c63c6cb6b88">flow::net_flow::Event_set::S_PEER_SOCKET_READABLE</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">flow::net_flow::Event_set::S_PEER_SOCKET_WRITABLE</a>, <a class="el" href="server__socket_8cpp_source.html#l00786">serv_peer_socket_closed()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06161">sock_disconnect_completed()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06140">sock_disconnect_detected()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06388">sock_load_info_struct()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06441">sock_log_detail()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06109">sock_set_int_state()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05551">receive_emptied_rcv_buf_while_disconnecting()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05803">rst_and_close_connection_immediately()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05557">receive_emptied_rcv_buf_while_disconnecting()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05809">rst_and_close_connection_immediately()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>The RTT. May be zero. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l02870">2870</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l02876">2876</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02297">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_order_num</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02298">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_order_num</a>.</p>
 
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@@ -2859,7 +2859,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a893c8393930110e2aa082358
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 <dl class="section return"><dt>Returns</dt><dd>Shared pointer to <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a>, which is in the <code>S_OPEN</code> main state; or null pointer, indicating an error. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03944">3944</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03950">3950</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See <a class="el" href="classflow_1_1net__flow_1_1Node.html#a893c8393930110e2aa0823583e37cabd" title="Initiates an active connect to the specified remote Flow server.">connect()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03951">3951</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03957">3957</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="async_2util_8hpp_source.html#l00031">flow::async::asio_exec_ctx_post()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03951">connect_with_metadata()</a>, <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00352">flow::net_flow::Peer_socket::max_block_size()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a9a2cbc62120ca52c1f7e695b56b2bdcd">flow::net_flow::error::S_CONN_METADATA_TOO_LARGE</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>.</p>
+<p class="reference">References <a class="el" href="async_2util_8hpp_source.html#l00031">flow::async::asio_exec_ctx_post()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03957">connect_with_metadata()</a>, <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00352">flow::net_flow::Peer_socket::max_block_size()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a9a2cbc62120ca52c1f7e695b56b2bdcd">flow::net_flow::error::S_CONN_METADATA_TOO_LARGE</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="asio_2peer__socket_8cpp_source.html#l00171">flow::net_flow::asio::Node::async_connect_impl()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l03951">connect_with_metadata()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="asio_2peer__socket_8cpp_source.html#l00171">flow::net_flow::asio::Node::async_connect_impl()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l03957">connect_with_metadata()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04005">4005</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04011">4011</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="cong__ctl_8cpp_source.html#l00101">flow::net_flow::Congestion_control_selector::create_strategy()</a>, <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="util_2util_8hpp_source.html#l00276">flow::util::key_exists()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01178">flow::net_flow::Peer_socket::m_opts</a>, <a class="el" href="peer__socket_8hpp_source.html#l01181">flow::net_flow::Peer_socket::m_opts_mutex</a>, <a class="el" href="endpoint_8hpp_source.html#l00097">flow::net_flow::Remote_endpoint::m_udp_endpoint</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482aac3ec8d83192e9cd271376fce4001e99">flow::net_flow::error::S_CANNOT_CONNECT_TO_IP_ANY</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">flow::net_flow::Peer_socket::S_CONNECTING</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae90ff1c87f2393dd6b14232b159f02b2">flow::net_flow::error::S_INTERNAL_ERROR_PORT_COLLISION</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="port__space_8cpp_source.html#l00033">flow::net_flow::S_PORT_ANY</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">flow::net_flow::Peer_socket::S_SYN_SENT</a>, <a class="el" href="peer__socket_8hpp_source.html#l00836">flow::net_flow::Peer_socket::Send_bandwidth_estimator</a>, <a class="el" href="seq__num_8cpp_source.html#l00268">flow::net_flow::Sequence_number::set_metadata()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="cong__ctl_8cpp_source.html#l00101">flow::net_flow::Congestion_control_selector::create_strategy()</a>, <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="util_2util_8hpp_source.html#l00301">flow::util::key_exists()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01179">flow::net_flow::Peer_socket::m_opts</a>, <a class="el" href="peer__socket_8hpp_source.html#l01182">flow::net_flow::Peer_socket::m_opts_mutex</a>, <a class="el" href="endpoint_8hpp_source.html#l00097">flow::net_flow::Remote_endpoint::m_udp_endpoint</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482aac3ec8d83192e9cd271376fce4001e99">flow::net_flow::error::S_CANNOT_CONNECT_TO_IP_ANY</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">flow::net_flow::Peer_socket::S_CONNECTING</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae90ff1c87f2393dd6b14232b159f02b2">flow::net_flow::error::S_INTERNAL_ERROR_PORT_COLLISION</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="port__space_8cpp_source.html#l00033">flow::net_flow::S_PORT_ANY</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">flow::net_flow::Peer_socket::S_SYN_SENT</a>, <a class="el" href="peer__socket_8hpp_source.html#l00837">flow::net_flow::Peer_socket::Send_bandwidth_estimator</a>, <a class="el" href="seq__num_8cpp_source.html#l00268">flow::net_flow::Sequence_number::set_metadata()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
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 <dl class="section return"><dt>Returns</dt><dd>Pointer to new packet object suitable for <a class="el" href="classflow_1_1net__flow_1_1Node.html#a31edf238c1b21a409ea807c66c1b22f0" title="Begins the process of asynchronously sending the given low-level packet to the remote Node specified ...">async_sock_low_lvl_packet_send_paced()</a> without having to fill any further data members in the object. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05811">5811</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05817">5817</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04402">handle_connection_rexmit_timer_event()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04408">handle_connection_rexmit_timer_event()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See <a class="el" href="classflow_1_1net__flow_1_1Node.html#a5bca5c11ac5a4763fed6ce146fe733e7" title="Helper that creates a new SYN packet object to the extent that is suitable for immediately passing to...">create_syn()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05826">5826</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05832">5832</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04402">handle_connection_rexmit_timer_event()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04408">handle_connection_rexmit_timer_event()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>.</p>
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 <dl class="section return"><dt>Returns</dt><dd><code>true</code> normally; <code>false</code> if too many retransmissions detected, and thus <code>sock</code> was closed. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03102">3102</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03108">3108</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l02297">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_order_num</a>, <a class="el" href="peer__socket_8hpp_source.html#l02309">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_sent_time</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00373">flow::net_flow::Peer_socket::rexmit_on()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l02298">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_order_num</a>, <a class="el" href="peer__socket_8hpp_source.html#l02310">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_sent_time</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00373">flow::net_flow::Peer_socket::rexmit_on()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03317">3317</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03323">3323</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="peer__socket_8cpp_source.html#l00373">flow::net_flow::Peer_socket::rexmit_on()</a>, and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04498">setup_drop_timer()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04504">setup_drop_timer()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="event__set_8cpp_source.html#l01129">1129</a> of file <a class="el" href="event__set_8cpp_source.html">event_set.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="event__set_8cpp_source.html#l00747">flow::net_flow::Event_set::clear_ev_type_to_socks_map()</a>, <a class="el" href="linked__hash__set_8hpp_source.html#l00858">flow::util::Linked_hash_set&lt; Key, Hash, Pred &gt;::empty()</a>, <a class="el" href="event__set_8cpp_source.html#l00756">flow::net_flow::Event_set::ev_type_to_socks_map_entry_is_empty()</a>, <a class="el" href="event__set_8cpp_source.html#l00761">flow::net_flow::Event_set::ev_type_to_socks_map_sizes_to_str()</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="linked__hash__set_8hpp_source.html#l00591">flow::util::Linked_hash_set&lt; Key, Hash, Pred &gt;::insert()</a>, <a class="el" href="util_2util_8hpp_source.html#l00276">flow::util::key_exists()</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a2855bd159b6e63bf448ed1f41b608975a48954e0be2947224e80cdfc2283af906">flow::net_flow::Event_set::S_WAITING</a>, <a class="el" href="linked__hash__set_8hpp_source.html#l00852">flow::util::Linked_hash_set&lt; Key, Hash, Pred &gt;::size()</a>, and <a class="el" href="event__set_8cpp_source.html#l00777">flow::net_flow::Event_set::sock_as_any_to_str()</a>.</p>
+<p class="reference">References <a class="el" href="event__set_8cpp_source.html#l00747">flow::net_flow::Event_set::clear_ev_type_to_socks_map()</a>, <a class="el" href="linked__hash__set_8hpp_source.html#l00858">flow::util::Linked_hash_set&lt; Key, Hash, Pred &gt;::empty()</a>, <a class="el" href="event__set_8cpp_source.html#l00756">flow::net_flow::Event_set::ev_type_to_socks_map_entry_is_empty()</a>, <a class="el" href="event__set_8cpp_source.html#l00761">flow::net_flow::Event_set::ev_type_to_socks_map_sizes_to_str()</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="linked__hash__set_8hpp_source.html#l00591">flow::util::Linked_hash_set&lt; Key, Hash, Pred &gt;::insert()</a>, <a class="el" href="util_2util_8hpp_source.html#l00301">flow::util::key_exists()</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a2855bd159b6e63bf448ed1f41b608975a48954e0be2947224e80cdfc2283af906">flow::net_flow::Event_set::S_WAITING</a>, <a class="el" href="linked__hash__set_8hpp_source.html#l00852">flow::util::Linked_hash_set&lt; Key, Hash, Pred &gt;::size()</a>, and <a class="el" href="event__set_8cpp_source.html#l00777">flow::net_flow::Event_set::sock_as_any_to_str()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00364">close_empty_server_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="node_8cpp_source.html#l00375">perform_accumulated_on_recv_tasks()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04792">send_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00364">close_empty_server_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="node_8cpp_source.html#l00375">perform_accumulated_on_recv_tasks()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04798">send_worker()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06479">6479</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06485">6485</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l06456">advance_seq_num()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l06462">advance_seq_num()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l02061">2061</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l02067">2067</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="peer__socket_8hpp_source.html#l02297">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_order_num</a>, <a class="el" href="peer__socket_8hpp_source.html#l02327">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_sent_cwnd_bytes</a>, <a class="el" href="peer__socket_8cpp_source.html#l00373">flow::net_flow::Peer_socket::rexmit_on()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, and <a class="el" href="util_2util_8hpp_source.html#l00282">flow::util::setup_auto_cleanup()</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="peer__socket_8hpp_source.html#l02298">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_order_num</a>, <a class="el" href="peer__socket_8hpp_source.html#l02328">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_sent_cwnd_bytes</a>, <a class="el" href="peer__socket_8cpp_source.html#l00373">flow::net_flow::Peer_socket::rexmit_on()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, and <a class="el" href="util_2util_8hpp_source.html#l00307">flow::util::setup_auto_cleanup()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="node_8cpp_source.html#l00375">perform_accumulated_on_recv_tasks()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l01638">1638</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l01644">1644</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae020e63f3ada47025681c8d7f2a00f28">flow::net_flow::error::S_INTERNAL_ERROR_SYSTEM_ERROR_ASIO_TIMER</a>.</p>
 
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l01990">1990</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l01996">1996</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>.</p>
 
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04402">4402</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04408">4408</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05811">create_syn()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05826">create_syn_ack()</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">flow::net_flow::Peer_socket::S_SYN_RCVD</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">flow::net_flow::Peer_socket::S_SYN_SENT</a>, <a class="el" href="peer__socket_8cpp_source.html#l04323">setup_connection_timers()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05518">sock_rcv_wnd()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05817">create_syn()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05832">create_syn_ack()</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">flow::net_flow::Peer_socket::S_SYN_RCVD</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">flow::net_flow::Peer_socket::S_SYN_SENT</a>, <a class="el" href="peer__socket_8cpp_source.html#l04329">setup_connection_timers()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05524">sock_rcv_wnd()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00560">560</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00481">flow::util::buffers_dump_string()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00069">flow::net_flow::Peer_socket_receive_stats_accumulator::error_data_packet()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="socket__stats_8cpp_source.html#l00033">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_packet()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00092">flow::net_flow::Peer_socket_receive_stats_accumulator::good_to_send_ack_packet()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00075">flow::net_flow::Peer_socket_receive_stats_accumulator::late_or_dupe_data_packet()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00098">flow::net_flow::Peer_socket_receive_stats_accumulator::late_or_dupe_to_send_ack_packet()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00373">flow::net_flow::Peer_socket::rexmit_on()</a>, and <a class="el" href="socket__stats_8cpp_source.html#l00027">flow::net_flow::Peer_socket_receive_stats_accumulator::total_data_packet()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00506">flow::util::buffers_dump_string()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00069">flow::net_flow::Peer_socket_receive_stats_accumulator::error_data_packet()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="socket__stats_8cpp_source.html#l00033">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_packet()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00092">flow::net_flow::Peer_socket_receive_stats_accumulator::good_to_send_ack_packet()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00075">flow::net_flow::Peer_socket_receive_stats_accumulator::late_or_dupe_data_packet()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00098">flow::net_flow::Peer_socket_receive_stats_accumulator::late_or_dupe_to_send_ack_packet()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00373">flow::net_flow::Peer_socket::rexmit_on()</a>, and <a class="el" href="socket__stats_8cpp_source.html#l00027">flow::net_flow::Peer_socket_receive_stats_accumulator::total_data_packet()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>.</p>
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@@ -4282,7 +4282,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a1699dfdaf3e5ebe1b1d715a9
 
 <p class="definition">Definition at line <a class="el" href="node_8cpp_source.html#l00426">426</a> of file <a class="el" href="node_8cpp_source.html">node.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l00586">async_no_sock_low_lvl_rst_send()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01033">async_sock_low_lvl_rst_send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00381">flow::net_flow::Low_lvl_packet::create_from_raw_data_packet()</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01990">handle_ack_to_established()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00560">handle_data_to_established()</a>, <a class="el" href="server__socket_8cpp_source.html#l00701">handle_data_to_syn_rcvd()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00539">handle_syn_ack_to_established()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00474">handle_syn_ack_to_syn_sent()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>, <a class="el" href="options_8hpp_source.html#l00568">flow::net_flow::Node_options::m_dyn_guarantee_one_low_lvl_in_buf_per_socket</a>, <a class="el" href="node_8hpp_source.html#l03704">m_opts</a>, <a class="el" href="node_8hpp_source.html#l03798">m_servs</a>, <a class="el" href="node_8hpp_source.html#l03792">m_socks</a>, <a class="el" href="node_8cpp_source.html#l01112">max_block_size()</a>, <a class="el" href="node_8hpp_source.html#l04180">opt()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482aa220d89e1d0e34bab02ed2fc7512be9b">flow::net_flow::error::S_CONN_REFUSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab2c97d0fbc585d3726ec79c7802da891">flow::net_flow::error::S_CONN_RESET_BAD_PEER_BEHAVIOR</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a138a08bb4d41be4cdbc6311a1a617cf4">flow::net_flow::error::S_CONN_RESET_BY_OTHER_SIDE</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, <a class="el" href="classflow_1_1net__flow_1_1Server__socket.html#a8bc789b851677a47d7c0a1aa0c69a997aebae5ec546409cde4d74d99452d9cc8a">flow::net_flow::Server_socket::S_LISTENING</a>, <a class="el" href="port__space_8cpp_source.html#l00033">flow::net_flow::S_PORT_ANY</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">flow::net_flow::Peer_socket::S_SYN_RCVD</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">flow::net_flow::Peer_socket::S_SYN_SENT</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l00586">async_no_sock_low_lvl_rst_send()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01033">async_sock_low_lvl_rst_send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00381">flow::net_flow::Low_lvl_packet::create_from_raw_data_packet()</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01996">handle_ack_to_established()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00560">handle_data_to_established()</a>, <a class="el" href="server__socket_8cpp_source.html#l00701">handle_data_to_syn_rcvd()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00539">handle_syn_ack_to_established()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00474">handle_syn_ack_to_syn_sent()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>, <a class="el" href="options_8hpp_source.html#l00568">flow::net_flow::Node_options::m_dyn_guarantee_one_low_lvl_in_buf_per_socket</a>, <a class="el" href="node_8hpp_source.html#l03704">m_opts</a>, <a class="el" href="node_8hpp_source.html#l03798">m_servs</a>, <a class="el" href="node_8hpp_source.html#l03792">m_socks</a>, <a class="el" href="node_8cpp_source.html#l01112">max_block_size()</a>, <a class="el" href="node_8hpp_source.html#l04180">opt()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482aa220d89e1d0e34bab02ed2fc7512be9b">flow::net_flow::error::S_CONN_REFUSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab2c97d0fbc585d3726ec79c7802da891">flow::net_flow::error::S_CONN_RESET_BAD_PEER_BEHAVIOR</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a138a08bb4d41be4cdbc6311a1a617cf4">flow::net_flow::error::S_CONN_RESET_BY_OTHER_SIDE</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, <a class="el" href="classflow_1_1net__flow_1_1Server__socket.html#a8bc789b851677a47d7c0a1aa0c69a997aebae5ec546409cde4d74d99452d9cc8a">flow::net_flow::Server_socket::S_LISTENING</a>, <a class="el" href="port__space_8cpp_source.html#l00033">flow::net_flow::S_PORT_ANY</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">flow::net_flow::Peer_socket::S_SYN_RCVD</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">flow::net_flow::Peer_socket::S_SYN_SENT</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__io_8cpp_source.html#l00255">async_wait_latency_then_handle_incoming()</a>, and <a class="el" href="low__lvl__io_8cpp_source.html#l00187">handle_incoming_with_simulation()</a>.</p>
 <div class="dynheader">
@@ -4425,7 +4425,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a29d02f9e302c7b06288ff1c6
 
 <p class="definition">Definition at line <a class="el" href="server__socket_8cpp_source.html#l00583">583</a> of file <a class="el" href="server__socket_8cpp_source.html">server_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l04447">cancel_timers()</a>, <a class="el" href="event__set_8cpp_source.html#l01129">event_set_all_check_delta()</a>, <a class="el" href="log_8hpp_source.html#l00372">FLOW_LOG_DATA_WITHOUT_CHECKING</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00560">handle_data_to_established()</a>, <a class="el" href="node_8hpp_source.html#l03830">m_sock_events</a>, <a class="el" href="peer__socket_8cpp_source.html#l05803">rst_and_close_connection_immediately()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab2c97d0fbc585d3726ec79c7802da891">flow::net_flow::error::S_CONN_RESET_BAD_PEER_BEHAVIOR</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">flow::net_flow::Peer_socket::S_CONNECTED</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">flow::log::S_DATA</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71afb218b0110d3f9f26ee089bad2e0eba2">flow::net_flow::Event_set::S_SERVER_SOCKET_ACCEPTABLE</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">flow::net_flow::Peer_socket::S_SYN_RCVD</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>, <a class="el" href="server__socket_8cpp_source.html#l00838">serv_peer_socket_acceptable()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04498">setup_drop_timer()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06103">sock_set_int_state()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06112">sock_set_state()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l04453">cancel_timers()</a>, <a class="el" href="event__set_8cpp_source.html#l01129">event_set_all_check_delta()</a>, <a class="el" href="log_8hpp_source.html#l00372">FLOW_LOG_DATA_WITHOUT_CHECKING</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00560">handle_data_to_established()</a>, <a class="el" href="node_8hpp_source.html#l03830">m_sock_events</a>, <a class="el" href="peer__socket_8cpp_source.html#l05809">rst_and_close_connection_immediately()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab2c97d0fbc585d3726ec79c7802da891">flow::net_flow::error::S_CONN_RESET_BAD_PEER_BEHAVIOR</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">flow::net_flow::Peer_socket::S_CONNECTED</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">flow::log::S_DATA</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71afb218b0110d3f9f26ee089bad2e0eba2">flow::net_flow::Event_set::S_SERVER_SOCKET_ACCEPTABLE</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">flow::net_flow::Peer_socket::S_SYN_RCVD</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>, <a class="el" href="server__socket_8cpp_source.html#l00838">serv_peer_socket_acceptable()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04504">setup_drop_timer()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06109">sock_set_int_state()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06118">sock_set_state()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>.</p>
 <div class="dynheader">
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 <p class="definition">Definition at line <a class="el" href="server__socket_8cpp_source.html#l00433">433</a> of file <a class="el" href="server__socket_8cpp_source.html">server_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l00586">async_no_sock_low_lvl_rst_send()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00605">async_sock_low_lvl_packet_send_paced()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04447">cancel_timers()</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00190">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::const_ptr_cast()</a>, <a class="el" href="cong__ctl_8cpp_source.html#l00101">flow::net_flow::Congestion_control_selector::create_strategy()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05826">create_syn_ack()</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="seq__num_8cpp_source.html#l00048">flow::net_flow::Sequence_number::Generator::generate_init_seq_num()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="util_2util_8hpp_source.html#l00276">flow::util::key_exists()</a>, <a class="el" href="options_8hpp_source.html#l00580">flow::net_flow::Node_options::m_dyn_sock_opts</a>, <a class="el" href="node_8hpp_source.html#l03704">m_opts</a>, <a class="el" href="node_8hpp_source.html#l03707">m_opts_mutex</a>, <a class="el" href="node_8hpp_source.html#l03786">m_rnd_security_tokens</a>, <a class="el" href="node_8hpp_source.html#l03780">m_seq_num_generator</a>, <a class="el" href="node_8hpp_source.html#l03792">m_socks</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">flow::net_flow::Peer_socket::S_CONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">flow::net_flow::Peer_socket::S_SYN_RCVD</a>, <a class="el" href="server__socket_8cpp_source.html#l00850">serv_peer_socket_init()</a>, <a class="el" href="seq__num_8cpp_source.html#l00268">flow::net_flow::Sequence_number::set_metadata()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04323">setup_connection_timers()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06500">sock_create()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05518">sock_rcv_wnd()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06103">sock_set_int_state()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06112">sock_set_state()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l00586">async_no_sock_low_lvl_rst_send()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00605">async_sock_low_lvl_packet_send_paced()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04453">cancel_timers()</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00190">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::const_ptr_cast()</a>, <a class="el" href="cong__ctl_8cpp_source.html#l00101">flow::net_flow::Congestion_control_selector::create_strategy()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05832">create_syn_ack()</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="seq__num_8cpp_source.html#l00048">flow::net_flow::Sequence_number::Generator::generate_init_seq_num()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="util_2util_8hpp_source.html#l00301">flow::util::key_exists()</a>, <a class="el" href="options_8hpp_source.html#l00580">flow::net_flow::Node_options::m_dyn_sock_opts</a>, <a class="el" href="node_8hpp_source.html#l03704">m_opts</a>, <a class="el" href="node_8hpp_source.html#l03707">m_opts_mutex</a>, <a class="el" href="node_8hpp_source.html#l03786">m_rnd_security_tokens</a>, <a class="el" href="node_8hpp_source.html#l03780">m_seq_num_generator</a>, <a class="el" href="node_8hpp_source.html#l03792">m_socks</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">flow::net_flow::Peer_socket::S_CONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">flow::net_flow::Peer_socket::S_SYN_RCVD</a>, <a class="el" href="server__socket_8cpp_source.html#l00850">serv_peer_socket_init()</a>, <a class="el" href="seq__num_8cpp_source.html#l00268">flow::net_flow::Sequence_number::set_metadata()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04329">setup_connection_timers()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06506">sock_create()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05524">sock_rcv_wnd()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06109">sock_set_int_state()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06118">sock_set_state()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="server__socket_8cpp_source.html#l00218">218</a> of file <a class="el" href="server__socket_8cpp_source.html">server_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="util_2util_8hpp_source.html#l00276">flow::util::key_exists()</a>, <a class="el" href="node_8hpp_source.html#l03777">m_ports</a>, <a class="el" href="node_8hpp_source.html#l03798">m_servs</a>, <a class="el" href="port__space_8cpp_source.html#l00075">flow::net_flow::Port_space::reserve_port()</a>, <a class="el" href="port__space_8cpp_source.html#l00175">flow::net_flow::Port_space::return_port()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae90ff1c87f2393dd6b14232b159f02b2">flow::net_flow::error::S_INTERNAL_ERROR_PORT_COLLISION</a>, <a class="el" href="classflow_1_1net__flow_1_1Server__socket.html#a8bc789b851677a47d7c0a1aa0c69a997aebae5ec546409cde4d74d99452d9cc8a">flow::net_flow::Server_socket::S_LISTENING</a>, <a class="el" href="port__space_8cpp_source.html#l00033">flow::net_flow::S_PORT_ANY</a>, <a class="el" href="server__socket_8cpp_source.html#l00873">serv_create()</a>, <a class="el" href="server__socket_8cpp_source.html#l00414">serv_set_state()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06239">sock_validate_options()</a>.</p>
+<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="util_2util_8hpp_source.html#l00301">flow::util::key_exists()</a>, <a class="el" href="node_8hpp_source.html#l03777">m_ports</a>, <a class="el" href="node_8hpp_source.html#l03798">m_servs</a>, <a class="el" href="port__space_8cpp_source.html#l00075">flow::net_flow::Port_space::reserve_port()</a>, <a class="el" href="port__space_8cpp_source.html#l00175">flow::net_flow::Port_space::return_port()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae90ff1c87f2393dd6b14232b159f02b2">flow::net_flow::error::S_INTERNAL_ERROR_PORT_COLLISION</a>, <a class="el" href="classflow_1_1net__flow_1_1Server__socket.html#a8bc789b851677a47d7c0a1aa0c69a997aebae5ec546409cde4d74d99452d9cc8a">flow::net_flow::Server_socket::S_LISTENING</a>, <a class="el" href="port__space_8cpp_source.html#l00033">flow::net_flow::S_PORT_ANY</a>, <a class="el" href="server__socket_8cpp_source.html#l00873">serv_create()</a>, <a class="el" href="server__socket_8cpp_source.html#l00414">serv_set_state()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06245">sock_validate_options()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="server__socket_8cpp_source.html#l00144">listen()</a>.</p>
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   </dd>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03266">3266</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03272">3272</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8hpp_source.html#l00372">FLOW_LOG_DATA_WITHOUT_CHECKING</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">flow::log::S_DATA</a>, and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>.</p>
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   </dd>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l01904">1904</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l01910">1910</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00532">FLOW_LOG_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="util_2util_8hpp_source.html#l00342">flow::util::ostream_op_to_string()</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">flow::log::S_DATA</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">flow::log::S_INFO</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00532">FLOW_LOG_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="util_2util_8hpp_source.html#l00367">flow::util::ostream_op_to_string()</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">flow::log::S_DATA</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">flow::log::S_INFO</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06435">sock_log_detail()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06441">sock_log_detail()</a>.</p>
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@@ -5091,11 +5091,11 @@ <h2 class="memtitle"><span class="permalink"><a href="#a24785d3e04e0a9cd5daca43b
   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03635">3635</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03641">3641</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00489">FLOW_LOG_WITH_CHECKING</a>, <a class="el" href="log_8hpp_source.html#l00532">FLOW_LOG_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="util_2util_8hpp_source.html#l00342">flow::util::ostream_op_to_string()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00373">flow::net_flow::Peer_socket::rexmit_on()</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">flow::log::S_DATA</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">flow::log::S_INFO</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00489">FLOW_LOG_WITH_CHECKING</a>, <a class="el" href="log_8hpp_source.html#l00532">FLOW_LOG_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="util_2util_8hpp_source.html#l00367">flow::util::ostream_op_to_string()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00373">flow::net_flow::Peer_socket::rexmit_on()</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">flow::log::S_DATA</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">flow::log::S_INFO</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06435">sock_log_detail()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06441">sock_log_detail()</a>.</p>
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@@ -5295,7 +5295,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a2983d0d8a4d4eb5c3402f63f
 
 <p class="definition">Definition at line <a class="el" href="low__lvl__io_8cpp_source.html#l00422">422</a> of file <a class="el" href="low__lvl__io_8cpp_source.html">low_lvl_io.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02220">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02221">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__io_8cpp_source.html#l00321">async_low_lvl_packet_send_impl()</a>.</p>
 <div class="dynheader">
@@ -5336,7 +5336,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a4bd7b471dd6cd3e3570930b4
 
 <p class="reference">References <a class="el" href="options_8hpp_source.html#l00580">flow::net_flow::Node_options::m_dyn_sock_opts</a>, <a class="el" href="node_8hpp_source.html#l03704">m_opts</a>, <a class="el" href="options_8hpp_source.html#l00114">flow::net_flow::Peer_socket_options::m_st_max_block_size</a>, and <a class="el" href="node_8hpp_source.html#l04180">opt()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05857">async_low_lvl_ack_send()</a>, and <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05863">async_low_lvl_ack_send()</a>, and <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>.</p>
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@@ -5395,7 +5395,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ae9b88eadca41228fe6a671f2
   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03497">3497</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03503">3503</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>.</p>
 
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See above. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03921">3921</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03927">3927</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="peer__socket_8hpp_source.html#l02254">flow::net_flow::Peer_socket::Sent_packet::m_packet</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a3c1dc923491f5e20763fc27d025665d4">flow::net_flow::error::S_CONN_RESET_TOO_MANY_REXMITS</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="peer__socket_8hpp_source.html#l02255">flow::net_flow::Peer_socket::Sent_packet::m_packet</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a3c1dc923491f5e20763fc27d025665d4">flow::net_flow::error::S_CONN_RESET_TOO_MANY_REXMITS</a>.</p>
 
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 <p class="reference">References <a class="el" href="node_8hpp_source.html#l03707">m_opts_mutex</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="low__lvl__io_8cpp_source.html#l00321">async_low_lvl_packet_send_impl()</a>, <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00046">low_lvl_recv_and_handle()</a>, <a class="el" href="node_8cpp_source.html#l01112">max_block_size()</a>, <a class="el" href="node_8cpp_source.html#l01107">options()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06382">sock_load_info_struct()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00765">sock_pacing_new_time_slice()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01045">sync_sock_low_lvl_rst_send()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="low__lvl__io_8cpp_source.html#l00321">async_low_lvl_packet_send_impl()</a>, <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00046">low_lvl_recv_and_handle()</a>, <a class="el" href="node_8cpp_source.html#l01112">max_block_size()</a>, <a class="el" href="node_8cpp_source.html#l01107">options()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06388">sock_load_info_struct()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00765">sock_pacing_new_time_slice()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01045">sync_sock_low_lvl_rst_send()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
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@@ -5582,7 +5582,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a0fba26db0055a969f3869014
 
 <p class="definition">Definition at line <a class="el" href="node_8cpp_source.html#l00375">375</a> of file <a class="el" href="node_8cpp_source.html">node.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="event__set_8cpp_source.html#l01129">event_set_all_check_delta()</a>, <a class="el" href="peer__socket_8cpp_source.html#l02061">handle_accumulated_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01638">handle_accumulated_pending_acks()</a>, <a class="el" href="node_8hpp_source.html#l03867">m_socks_with_accumulated_acks</a>, <a class="el" href="node_8hpp_source.html#l03849">m_socks_with_accumulated_pending_acks</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="event__set_8cpp_source.html#l01129">event_set_all_check_delta()</a>, <a class="el" href="peer__socket_8cpp_source.html#l02067">handle_accumulated_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01644">handle_accumulated_pending_acks()</a>, <a class="el" href="node_8hpp_source.html#l03867">m_socks_with_accumulated_acks</a>, <a class="el" href="node_8hpp_source.html#l03849">m_socks_with_accumulated_pending_acks</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__io_8cpp_source.html#l00255">async_wait_latency_then_handle_incoming()</a>, and <a class="el" href="low__lvl__io_8cpp_source.html#l00046">low_lvl_recv_and_handle()</a>.</p>
 <div class="dynheader">
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 <p class="definition">Definition at line <a class="el" href="node_8cpp_source.html#l01117">1117</a> of file <a class="el" href="node_8cpp_source.html">node.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8hpp_source.html#l03792">m_socks</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="node_8cpp_source.html#l01117">perform_regular_infrequent_tasks()</a>, <a class="el" href="node_8hpp_source.html#l03693">S_REGULAR_INFREQUENT_TASKS_PERIOD</a>, <a class="el" href="sched__task_8hpp_source.html#l00034">flow::util::schedule_task_from_now()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06435">sock_log_detail()</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8hpp_source.html#l03792">m_socks</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="node_8cpp_source.html#l01117">perform_regular_infrequent_tasks()</a>, <a class="el" href="node_8hpp_source.html#l03693">S_REGULAR_INFREQUENT_TASKS_PERIOD</a>, <a class="el" href="sched__task_8hpp_source.html#l00034">flow::util::schedule_task_from_now()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06441">sock_log_detail()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="node_8cpp_source.html#l01117">perform_regular_infrequent_tasks()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
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@@ -5689,9 +5689,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a8cae2884eaf67d77c9f8cf56
 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See above. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06097">6097</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06103">6103</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05233">sock_is_readable()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05239">sock_is_readable()</a>.</p>
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@@ -5814,9 +5814,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#addbb96858fd7b3c9ddd7c6fe
 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0" title="Receives (consumes from the Receive buffer) bytes of data, up to a given maximum cumulative number of...">Peer_socket::receive()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05083">5083</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05089">5089</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="peer__socket_8cpp_source.html#l05551">receive_emptied_rcv_buf_while_disconnecting()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05263">receive_wnd_updated()</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">flow::net_flow::Peer_socket::S_CONNECTED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">flow::net_flow::Peer_socket::S_CONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>.</p>
+<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="peer__socket_8cpp_source.html#l05557">receive_emptied_rcv_buf_while_disconnecting()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05269">receive_wnd_updated()</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">flow::net_flow::Peer_socket::S_CONNECTED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">flow::net_flow::Peer_socket::S_CONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00219">flow::net_flow::Peer_socket::node_receive()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00234">flow::net_flow::Peer_socket::node_sync_receive()</a>.</p>
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@@ -5867,11 +5867,11 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad608f9bbe76426f4fbf4bf5a
   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05551">5551</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05557">5557</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05083">receive()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05089">receive()</a>.</p>
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   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05485">5485</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05491">5491</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, and <a class="el" href="sched__task_8cpp_source.html#l00026">flow::util::scheduled_task_cancel()</a>.</p>
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@@ -5965,11 +5965,11 @@ <h2 class="memtitle"><span class="permalink"><a href="#a08cf95363b26c0c676979437
   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05263">5263</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05269">5269</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l05397">async_rcv_wnd_recovery()</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05518">sock_rcv_wnd()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l05403">async_rcv_wnd_recovery()</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05524">sock_rcv_wnd()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05083">receive()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05089">receive()</a>.</p>
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@@ -6042,11 +6042,11 @@ <h2 class="memtitle"><span class="permalink"><a href="#afe70a0c32695e417e7a09e0b
   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05803">5803</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05809">5809</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l01033">async_sock_low_lvl_rst_send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l01033">async_sock_low_lvl_rst_send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05615">close_abruptly()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04498">setup_drop_timer()</a>, and <a class="el" href="low__lvl__io_8cpp_source.html#l00969">sock_pacing_time_slice_end()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05621">close_abruptly()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04504">setup_drop_timer()</a>, and <a class="el" href="low__lvl__io_8cpp_source.html#l00969">sock_pacing_time_slice_end()</a>.</p>
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 <p class="reference">References <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05615">close_abruptly()</a>, <a class="el" href="server__socket_8cpp_source.html#l00144">listen()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05083">receive()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04520">send()</a>, <a class="el" href="node_8cpp_source.html#l01054">set_options()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06338">sock_info()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06191">sock_set_options()</a>, and <a class="el" href="node_8hpp_source.html#l03977">sync_op()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05621">close_abruptly()</a>, <a class="el" href="server__socket_8cpp_source.html#l00144">listen()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05089">receive()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04526">send()</a>, <a class="el" href="node_8cpp_source.html#l01054">set_options()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06344">sock_info()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06197">sock_set_options()</a>, and <a class="el" href="node_8hpp_source.html#l03977">sync_op()</a>.</p>
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@@ -6154,9 +6154,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#aa19d1f49638ef8ce8883e747
 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#af90b656d7e0b7e746b8beb4e24717cec" title="Sends (adds to the Send buffer) the given bytes of data up to a maximum internal buffer size; and asy...">Peer_socket::send()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04520">4520</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04526">4526</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="error_2error_8hpp_source.html#l00218">FLOW_ERROR_EMIT_ERROR_LOG_INFO</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">flow::net_flow::Peer_socket::S_CONNECTED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">flow::net_flow::Peer_socket::S_CONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="peer__socket_8cpp_source.html#l04747">send_worker_check_state()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">snd_deqable()</a>.</p>
+<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="error_2error_8hpp_source.html#l00218">FLOW_ERROR_EMIT_ERROR_LOG_INFO</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">flow::net_flow::Peer_socket::S_CONNECTED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">flow::net_flow::Peer_socket::S_CONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="peer__socket_8cpp_source.html#l04753">send_worker_check_state()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06080">snd_deqable()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00134">flow::net_flow::Peer_socket::node_send()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00149">flow::net_flow::Peer_socket::node_sync_send()</a>.</p>
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@@ -6220,11 +6220,11 @@ <h2 class="memtitle"><span class="permalink"><a href="#a10a92f11a2c9f218cdd9a55f
   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04792">4792</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04798">4798</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l06456">advance_seq_num()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05039">can_send()</a>, <a class="el" href="socket__buffer_8cpp_source.html#l00103">flow::net_flow::Socket_buffer::consume_buf_move()</a>, <a class="el" href="socket__buffer_8cpp_source.html#l00034">flow::net_flow::Socket_buffer::data_size()</a>, <a class="el" href="event__set_8cpp_source.html#l01129">event_set_all_check_delta()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8hpp_source.html#l03830">m_sock_events</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">flow::net_flow::Event_set::S_PEER_SOCKET_WRITABLE</a>, <a class="el" href="peer__socket_8cpp_source.html#l06080">snd_buf_enqable()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06074">snd_deqable()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03818">snd_flying_pkts_push_one()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03760">snd_past_last_flying_datum_seq_num()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06494">sock_get_new_snd_order_num()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l06462">advance_seq_num()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05045">can_send()</a>, <a class="el" href="socket__buffer_8cpp_source.html#l00103">flow::net_flow::Socket_buffer::consume_buf_move()</a>, <a class="el" href="socket__buffer_8cpp_source.html#l00034">flow::net_flow::Socket_buffer::data_size()</a>, <a class="el" href="event__set_8cpp_source.html#l01129">event_set_all_check_delta()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8hpp_source.html#l03830">m_sock_events</a>, <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">flow::net_flow::Event_set::S_PEER_SOCKET_WRITABLE</a>, <a class="el" href="peer__socket_8cpp_source.html#l06086">snd_buf_enqable()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06080">snd_deqable()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03824">snd_flying_pkts_push_one()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03766">snd_past_last_flying_datum_seq_num()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06500">sock_get_new_snd_order_num()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04747">send_worker_check_state()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04753">send_worker_check_state()</a>.</p>
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   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04747">4747</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04753">4753</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">flow::net_flow::Peer_socket::S_SYN_RCVD</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">flow::net_flow::Peer_socket::S_SYN_SENT</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04792">send_worker()</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::S_ESTABLISHED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">flow::net_flow::Peer_socket::S_SYN_RCVD</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">flow::net_flow::Peer_socket::S_SYN_SENT</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04798">send_worker()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04520">send()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04526">send()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="server__socket_8cpp_source.html#l00786">786</a> of file <a class="el" href="server__socket_8cpp_source.html">server_socket.cpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>.</p>
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   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04323">4323</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04329">4329</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a074451c0bc9f5ae37e0c8fbe82677090">flow::net_flow::error::S_CONN_TIMEOUT</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">flow::net_flow::Peer_socket::S_SYN_RCVD</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">flow::net_flow::Peer_socket::S_SYN_SENT</a>, <a class="el" href="sched__task_8hpp_source.html#l00034">flow::util::schedule_task_from_now()</a>, <a class="el" href="sched__task_8cpp_source.html#l00238">flow::util::scheduled_task_fired()</a>, and <a class="el" href="sched__task_8cpp_source.html#l00200">flow::util::scheduled_task_fires_from_now_or_canceled()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04402">handle_connection_rexmit_timer_event()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04408">handle_connection_rexmit_timer_event()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>.</p>
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@@ -6905,9 +6905,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#ab427ebc124a6233ae48a7562
   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04498">4498</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04504">4504</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="drop__timer_8cpp_source.html#l00028">flow::net_flow::Drop_timer::create_drop_timer()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03317">drop_timer_action()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="peer__socket_8cpp_source.html#l05803">rst_and_close_connection_immediately()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="drop__timer_8cpp_source.html#l00028">flow::net_flow::Drop_timer::create_drop_timer()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03323">drop_timer_action()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="peer__socket_8cpp_source.html#l05809">rst_and_close_connection_immediately()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>.</p>
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@@ -6961,9 +6961,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a70d124ba678e2ab72f8c6d28
 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See above. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06080">6080</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06086">6086</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04792">send_worker()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04713">sock_is_writable()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04798">send_worker()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04719">sock_is_writable()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See above. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06074">6074</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06080">6080</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04520">send()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04792">send_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04526">send()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04798">send_worker()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03781">3781</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03787">3787</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02254">flow::net_flow::Peer_socket::Sent_packet::m_packet</a>, <a class="el" href="peer__socket_8hpp_source.html#l02220">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02255">flow::net_flow::Peer_socket::Sent_packet::m_packet</a>, <a class="el" href="peer__socket_8hpp_source.html#l02221">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
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+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03824">3824</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04792">send_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04798">send_worker()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03884">3884</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03890">3890</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>.</p>
 
@@ -7246,9 +7246,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a837d37e6eb06fb6df4666bac
 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See above. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03760">3760</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l03766">3766</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04792">send_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04798">send_worker()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00825">825</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="socket__stats_8cpp_source.html#l00069">flow::net_flow::Peer_socket_receive_stats_accumulator::error_data_packet()</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="peer__socket_8hpp_source.html#l01386">flow::net_flow::Peer_socket::m_rcv_init_seq_num</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a8ad7147a3e4e63313c7a5954790cd458">flow::net_flow::error::S_SEQ_NUM_ARITHMETIC_FAILURE</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a891201a96c5838bbb24cc9ed08b47765">flow::net_flow::error::S_SEQ_NUM_IMPLIES_CONNECTION_COLLISION</a>.</p>
+<p class="reference">References <a class="el" href="socket__stats_8cpp_source.html#l00069">flow::net_flow::Peer_socket_receive_stats_accumulator::error_data_packet()</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="peer__socket_8hpp_source.html#l01387">flow::net_flow::Peer_socket::m_rcv_init_seq_num</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a8ad7147a3e4e63313c7a5954790cd458">flow::net_flow::error::S_SEQ_NUM_ARITHMETIC_FAILURE</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a891201a96c5838bbb24cc9ed08b47765">flow::net_flow::error::S_SEQ_NUM_IMPLIES_CONNECTION_COLLISION</a>.</p>
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 <p>Reimplemented in <a class="el" href="classflow_1_1net__flow_1_1asio_1_1Node.html#a13e8070f5a4e4300e0138b63694884fc">flow::net_flow::asio::Node</a>.</p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06500">6500</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06506">6506</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l01320">1320</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00051">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_accepted_packet()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00045">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_dropped_reassembly_q_overflow_packet()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00063">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_first_qd_packet()</a>, and <a class="el" href="util_2util_8hpp_source.html#l00299">flow::util::subtract_with_floor()</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00051">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_accepted_packet()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00045">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_dropped_reassembly_q_overflow_packet()</a>, <a class="el" href="socket__stats_8cpp_source.html#l00063">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_first_qd_packet()</a>, and <a class="el" href="util_2util_8hpp_source.html#l00324">flow::util::subtract_with_floor()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06155">6155</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06161">6161</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="peer__socket_8cpp_source.html#l06168">sock_free_memory()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06112">sock_set_state()</a>.</p>
+<p class="reference">References <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="peer__socket_8cpp_source.html#l06174">sock_free_memory()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06118">sock_set_state()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06134">6134</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06140">6140</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="peer__socket_8cpp_source.html#l06168">sock_free_memory()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06112">sock_set_state()</a>.</p>
+<p class="reference">References <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>, <a class="el" href="peer__socket_8cpp_source.html#l06174">sock_free_memory()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06118">sock_set_state()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06168">6168</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06174">6174</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06155">sock_disconnect_completed()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06134">sock_disconnect_detected()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06161">sock_disconnect_completed()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06140">sock_disconnect_detected()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See above. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06494">6494</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06500">6500</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04792">send_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04798">send_worker()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aad81cc16fc6f0d353fdc1379e1dd4712" title="Returns a structure containing the most up-to-date stats about this connection.">Peer_socket::info()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06338">6338</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06344">6344</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="async_2util_8hpp_source.html#l00031">flow::async::asio_exec_ctx_post()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06382">sock_load_info_struct()</a>.</p>
+<p class="reference">References <a class="el" href="async_2util_8hpp_source.html#l00031">flow::async::asio_exec_ctx_post()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06388">sock_load_info_struct()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00323">flow::net_flow::Peer_socket::info()</a>.</p>
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 <dl class="section return"><dt>Returns</dt><dd>See above. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05233">5233</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05239">5239</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l06097">rcv_buf_deqable()</a>, and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l06103">rcv_buf_deqable()</a>, and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>.</p>
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 <dl class="section return"><dt>Returns</dt><dd>See above. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04713">4713</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04719">4719</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">flow::net_flow::Peer_socket::S_CONNECTED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06080">snd_buf_enqable()</a>.</p>
+<p class="reference">References <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">flow::net_flow::Peer_socket::S_CONNECTED</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::S_DISCONNECTING</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06086">snd_buf_enqable()</a>.</p>
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   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06382">6382</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06388">6388</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="info_8hpp_source.html#l00539">flow::net_flow::Peer_socket_info::m_disconnect_cause</a>, <a class="el" href="info_8hpp_source.html#l00533">flow::net_flow::Peer_socket_info::m_int_state_str</a>, <a class="el" href="info_8hpp_source.html#l00536">flow::net_flow::Peer_socket_info::m_is_active_connect</a>, <a class="el" href="info_8hpp_source.html#l00526">flow::net_flow::Peer_socket_info::m_low_lvl_max_buf_size</a>, <a class="el" href="node_8hpp_source.html#l03771">m_low_lvl_max_buf_size</a>, <a class="el" href="info_8hpp_source.html#l00651">flow::net_flow::Peer_socket_info::m_node_opts</a>, <a class="el" href="node_8hpp_source.html#l03704">m_opts</a>, <a class="el" href="info_8hpp_source.html#l00508">flow::net_flow::Peer_socket_info::m_rcv</a>, <a class="el" href="info_8hpp_source.html#l00549">flow::net_flow::Peer_socket_info::m_rcv_buf_size</a>, <a class="el" href="info_8hpp_source.html#l00570">flow::net_flow::Peer_socket_info::m_rcv_packets_with_gaps</a>, <a class="el" href="info_8hpp_source.html#l00558">flow::net_flow::Peer_socket_info::m_rcv_reassembly_q_data_size</a>, <a class="el" href="info_8hpp_source.html#l00573">flow::net_flow::Peer_socket_info::m_rcv_syn_rcvd_data_cumulative_size</a>, <a class="el" href="info_8hpp_source.html#l00576">flow::net_flow::Peer_socket_info::m_rcv_syn_rcvd_data_q_size</a>, <a class="el" href="info_8hpp_source.html#l00552">flow::net_flow::Peer_socket_info::m_rcv_wnd</a>, <a class="el" href="info_8hpp_source.html#l00555">flow::net_flow::Peer_socket_info::m_rcv_wnd_last_advertised</a>, <a class="el" href="info_8hpp_source.html#l00511">flow::net_flow::Peer_socket_info::m_snd</a>, <a class="el" href="info_8hpp_source.html#l00590">flow::net_flow::Peer_socket_info::m_snd_buf_size</a>, <a class="el" href="info_8hpp_source.html#l00608">flow::net_flow::Peer_socket_info::m_snd_cong_ctl_in_flight_bytes</a>, <a class="el" href="info_8hpp_source.html#l00611">flow::net_flow::Peer_socket_info::m_snd_cong_ctl_in_flight_count</a>, <a class="el" href="info_8hpp_source.html#l00599">flow::net_flow::Peer_socket_info::m_snd_cong_ctl_wnd_bytes</a>, <a class="el" href="info_8hpp_source.html#l00602">flow::net_flow::Peer_socket_info::m_snd_cong_ctl_wnd_count_approx</a>, <a class="el" href="info_8hpp_source.html#l00620">flow::net_flow::Peer_socket_info::m_snd_drop_timeout</a>, <a class="el" href="info_8hpp_source.html#l00641">flow::net_flow::Peer_socket_info::m_snd_est_bandwidth_mbit_per_sec</a>, <a class="el" href="info_8hpp_source.html#l00635">flow::net_flow::Peer_socket_info::m_snd_pacing_bytes_allowed_this_slice</a>, <a class="el" href="info_8hpp_source.html#l00623">flow::net_flow::Peer_socket_info::m_snd_pacing_packet_q_size</a>, <a class="el" href="info_8hpp_source.html#l00629">flow::net_flow::Peer_socket_info::m_snd_pacing_slice_period</a>, <a class="el" href="info_8hpp_source.html#l00626">flow::net_flow::Peer_socket_info::m_snd_pacing_slice_start</a>, <a class="el" href="info_8hpp_source.html#l00596">flow::net_flow::Peer_socket_info::m_snd_rcv_wnd</a>, <a class="el" href="info_8hpp_source.html#l00617">flow::net_flow::Peer_socket_info::m_snd_round_trip_time_variance</a>, <a class="el" href="info_8hpp_source.html#l00614">flow::net_flow::Peer_socket_info::m_snd_smoothed_round_trip_time</a>, <a class="el" href="info_8hpp_source.html#l00644">flow::net_flow::Peer_socket_info::m_sock_opts</a>, <a class="el" href="node_8hpp_source.html#l04180">opt()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05518">sock_rcv_wnd()</a>.</p>
+<p class="reference">References <a class="el" href="info_8hpp_source.html#l00539">flow::net_flow::Peer_socket_info::m_disconnect_cause</a>, <a class="el" href="info_8hpp_source.html#l00533">flow::net_flow::Peer_socket_info::m_int_state_str</a>, <a class="el" href="info_8hpp_source.html#l00536">flow::net_flow::Peer_socket_info::m_is_active_connect</a>, <a class="el" href="info_8hpp_source.html#l00526">flow::net_flow::Peer_socket_info::m_low_lvl_max_buf_size</a>, <a class="el" href="node_8hpp_source.html#l03771">m_low_lvl_max_buf_size</a>, <a class="el" href="info_8hpp_source.html#l00651">flow::net_flow::Peer_socket_info::m_node_opts</a>, <a class="el" href="node_8hpp_source.html#l03704">m_opts</a>, <a class="el" href="info_8hpp_source.html#l00508">flow::net_flow::Peer_socket_info::m_rcv</a>, <a class="el" href="info_8hpp_source.html#l00549">flow::net_flow::Peer_socket_info::m_rcv_buf_size</a>, <a class="el" href="info_8hpp_source.html#l00570">flow::net_flow::Peer_socket_info::m_rcv_packets_with_gaps</a>, <a class="el" href="info_8hpp_source.html#l00558">flow::net_flow::Peer_socket_info::m_rcv_reassembly_q_data_size</a>, <a class="el" href="info_8hpp_source.html#l00573">flow::net_flow::Peer_socket_info::m_rcv_syn_rcvd_data_cumulative_size</a>, <a class="el" href="info_8hpp_source.html#l00576">flow::net_flow::Peer_socket_info::m_rcv_syn_rcvd_data_q_size</a>, <a class="el" href="info_8hpp_source.html#l00552">flow::net_flow::Peer_socket_info::m_rcv_wnd</a>, <a class="el" href="info_8hpp_source.html#l00555">flow::net_flow::Peer_socket_info::m_rcv_wnd_last_advertised</a>, <a class="el" href="info_8hpp_source.html#l00511">flow::net_flow::Peer_socket_info::m_snd</a>, <a class="el" href="info_8hpp_source.html#l00590">flow::net_flow::Peer_socket_info::m_snd_buf_size</a>, <a class="el" href="info_8hpp_source.html#l00608">flow::net_flow::Peer_socket_info::m_snd_cong_ctl_in_flight_bytes</a>, <a class="el" href="info_8hpp_source.html#l00611">flow::net_flow::Peer_socket_info::m_snd_cong_ctl_in_flight_count</a>, <a class="el" href="info_8hpp_source.html#l00599">flow::net_flow::Peer_socket_info::m_snd_cong_ctl_wnd_bytes</a>, <a class="el" href="info_8hpp_source.html#l00602">flow::net_flow::Peer_socket_info::m_snd_cong_ctl_wnd_count_approx</a>, <a class="el" href="info_8hpp_source.html#l00620">flow::net_flow::Peer_socket_info::m_snd_drop_timeout</a>, <a class="el" href="info_8hpp_source.html#l00641">flow::net_flow::Peer_socket_info::m_snd_est_bandwidth_mbit_per_sec</a>, <a class="el" href="info_8hpp_source.html#l00635">flow::net_flow::Peer_socket_info::m_snd_pacing_bytes_allowed_this_slice</a>, <a class="el" href="info_8hpp_source.html#l00623">flow::net_flow::Peer_socket_info::m_snd_pacing_packet_q_size</a>, <a class="el" href="info_8hpp_source.html#l00629">flow::net_flow::Peer_socket_info::m_snd_pacing_slice_period</a>, <a class="el" href="info_8hpp_source.html#l00626">flow::net_flow::Peer_socket_info::m_snd_pacing_slice_start</a>, <a class="el" href="info_8hpp_source.html#l00596">flow::net_flow::Peer_socket_info::m_snd_rcv_wnd</a>, <a class="el" href="info_8hpp_source.html#l00617">flow::net_flow::Peer_socket_info::m_snd_round_trip_time_variance</a>, <a class="el" href="info_8hpp_source.html#l00614">flow::net_flow::Peer_socket_info::m_snd_smoothed_round_trip_time</a>, <a class="el" href="info_8hpp_source.html#l00644">flow::net_flow::Peer_socket_info::m_sock_opts</a>, <a class="el" href="node_8hpp_source.html#l04180">opt()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05524">sock_rcv_wnd()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06338">sock_info()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06435">sock_log_detail()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06344">sock_info()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06441">sock_log_detail()</a>.</p>
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   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06435">6435</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06441">6441</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="peer__socket_8cpp_source.html#l01904">log_rcv_window()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03635">log_snd_window()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06382">sock_load_info_struct()</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="peer__socket_8cpp_source.html#l01910">log_rcv_window()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03641">log_snd_window()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06388">sock_load_info_struct()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, and <a class="el" href="node_8cpp_source.html#l01117">perform_regular_infrequent_tasks()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, and <a class="el" href="node_8cpp_source.html#l01117">perform_regular_infrequent_tasks()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="low__lvl__io_8cpp_source.html#l00969">969</a> of file <a class="el" href="low__lvl__io_8cpp_source.html">low_lvl_io.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="peer__socket_8cpp_source.html#l05803">rst_and_close_connection_immediately()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00765">sock_pacing_new_time_slice()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00849">sock_pacing_process_q()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06068">socket_id()</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="peer__socket_8cpp_source.html#l05809">rst_and_close_connection_immediately()</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00765">sock_pacing_new_time_slice()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00849">sock_pacing_process_q()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06074">socket_id()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__io_8cpp_source.html#l00849">sock_pacing_process_q()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See above. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05518">5518</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l05524">5524</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05857">async_low_lvl_ack_send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05839">async_low_lvl_syn_ack_ack_send_or_close_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05397">async_rcv_wnd_recovery()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04402">handle_connection_rexmit_timer_event()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05263">receive_wnd_updated()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06382">sock_load_info_struct()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05863">async_low_lvl_ack_send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05845">async_low_lvl_syn_ack_ack_send_or_close_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05403">async_rcv_wnd_recovery()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04408">handle_connection_rexmit_timer_event()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05269">receive_wnd_updated()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06388">sock_load_info_struct()</a>.</p>
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   </dd>
 </dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06103">6103</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06109">6109</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a7d31cf18a3c075873de1c46c0176e41f" title="Dynamically replaces the current options set (options()) with the given options set.">Peer_socket::set_options()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06191">6191</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06197">6197</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06239">sock_validate_options()</a>.</p>
+<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06245">sock_validate_options()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00297">flow::net_flow::Peer_socket::set_options()</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06112">6112</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06118">6118</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::S_OPEN</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06155">sock_disconnect_completed()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06134">sock_disconnect_detected()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06161">sock_disconnect_completed()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06140">sock_disconnect_detected()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l01471">1471</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="socket__stats_8cpp_source.html#l00148">flow::net_flow::Peer_socket_receive_stats_accumulator::buffer_fed()</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="socket__stats_8cpp_source.html#l00057">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_delivered_packet()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02353">flow::net_flow::Peer_socket::Received_packet::m_data</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02345">flow::net_flow::Peer_socket::Received_packet::m_size</a>.</p>
+<p class="reference">References <a class="el" href="socket__stats_8cpp_source.html#l00148">flow::net_flow::Peer_socket_receive_stats_accumulator::buffer_fed()</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="socket__stats_8cpp_source.html#l00057">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_delivered_packet()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02354">flow::net_flow::Peer_socket::Received_packet::m_data</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02346">flow::net_flow::Peer_socket::Received_packet::m_size</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd><code>true</code> on success, <code>false</code> on validation error. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06239">6239</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06245">6245</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00246">flow::util::in_closed_range()</a>, <a class="el" href="util_2util_8hpp_source.html#l00254">flow::util::in_open_closed_range()</a>, <a class="el" href="options_8hpp_source.html#l00325">flow::net_flow::Peer_socket_options::m_dyn_drop_timeout_backoff_factor</a>, <a class="el" href="options_8hpp_source.html#l00317">flow::net_flow::Peer_socket_options::m_dyn_drop_timeout_ceiling</a>, <a class="el" href="options_8hpp_source.html#l00333">flow::net_flow::Peer_socket_options::m_dyn_rcv_wnd_recovery_timer_period</a>, <a class="el" href="options_8hpp_source.html#l00314">flow::net_flow::Peer_socket_options::m_st_cong_ctl_classic_wnd_decay_percent</a>, <a class="el" href="options_8hpp_source.html#l00306">flow::net_flow::Peer_socket_options::m_st_cong_ctl_cong_avoidance_increment_blocks</a>, <a class="el" href="options_8hpp_source.html#l00299">flow::net_flow::Peer_socket_options::m_st_cong_ctl_cong_wnd_on_drop_timeout_blocks</a>, <a class="el" href="options_8hpp_source.html#l00277">flow::net_flow::Peer_socket_options::m_st_cong_ctl_init_cong_wnd_blocks</a>, <a class="el" href="options_8hpp_source.html#l00296">flow::net_flow::Peer_socket_options::m_st_cong_ctl_max_cong_wnd_blocks</a>, <a class="el" href="options_8hpp_source.html#l00121">flow::net_flow::Peer_socket_options::m_st_connect_retransmit_period</a>, <a class="el" href="options_8hpp_source.html#l00124">flow::net_flow::Peer_socket_options::m_st_connect_retransmit_timeout</a>, <a class="el" href="options_8hpp_source.html#l00191">flow::net_flow::Peer_socket_options::m_st_delayed_ack_timer_period</a>, <a class="el" href="options_8hpp_source.html#l00226">flow::net_flow::Peer_socket_options::m_st_init_drop_timeout</a>, <a class="el" href="options_8hpp_source.html#l00114">flow::net_flow::Peer_socket_options::m_st_max_block_size</a>, <a class="el" href="options_8hpp_source.html#l00198">flow::net_flow::Peer_socket_options::m_st_max_full_blocks_before_ack_send</a>, <a class="el" href="options_8hpp_source.html#l00220">flow::net_flow::Peer_socket_options::m_st_max_rexmissions_per_packet</a>, <a class="el" href="options_8hpp_source.html#l00141">flow::net_flow::Peer_socket_options::m_st_rcv_buf_max_size</a>, <a class="el" href="options_8hpp_source.html#l00171">flow::net_flow::Peer_socket_options::m_st_rcv_buf_max_size_to_advertise_percent</a>, <a class="el" href="options_8hpp_source.html#l00183">flow::net_flow::Peer_socket_options::m_st_rcv_max_packets_after_unrecvd_packet_ratio_percent</a>, <a class="el" href="options_8hpp_source.html#l00267">flow::net_flow::Peer_socket_options::m_st_snd_bandwidth_est_sample_period_floor</a>, and <a class="el" href="options_8hpp_source.html#l00134">flow::net_flow::Peer_socket_options::m_st_snd_buf_max_size</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00271">flow::util::in_closed_range()</a>, <a class="el" href="util_2util_8hpp_source.html#l00279">flow::util::in_open_closed_range()</a>, <a class="el" href="options_8hpp_source.html#l00325">flow::net_flow::Peer_socket_options::m_dyn_drop_timeout_backoff_factor</a>, <a class="el" href="options_8hpp_source.html#l00317">flow::net_flow::Peer_socket_options::m_dyn_drop_timeout_ceiling</a>, <a class="el" href="options_8hpp_source.html#l00333">flow::net_flow::Peer_socket_options::m_dyn_rcv_wnd_recovery_timer_period</a>, <a class="el" href="options_8hpp_source.html#l00314">flow::net_flow::Peer_socket_options::m_st_cong_ctl_classic_wnd_decay_percent</a>, <a class="el" href="options_8hpp_source.html#l00306">flow::net_flow::Peer_socket_options::m_st_cong_ctl_cong_avoidance_increment_blocks</a>, <a class="el" href="options_8hpp_source.html#l00299">flow::net_flow::Peer_socket_options::m_st_cong_ctl_cong_wnd_on_drop_timeout_blocks</a>, <a class="el" href="options_8hpp_source.html#l00277">flow::net_flow::Peer_socket_options::m_st_cong_ctl_init_cong_wnd_blocks</a>, <a class="el" href="options_8hpp_source.html#l00296">flow::net_flow::Peer_socket_options::m_st_cong_ctl_max_cong_wnd_blocks</a>, <a class="el" href="options_8hpp_source.html#l00121">flow::net_flow::Peer_socket_options::m_st_connect_retransmit_period</a>, <a class="el" href="options_8hpp_source.html#l00124">flow::net_flow::Peer_socket_options::m_st_connect_retransmit_timeout</a>, <a class="el" href="options_8hpp_source.html#l00191">flow::net_flow::Peer_socket_options::m_st_delayed_ack_timer_period</a>, <a class="el" href="options_8hpp_source.html#l00226">flow::net_flow::Peer_socket_options::m_st_init_drop_timeout</a>, <a class="el" href="options_8hpp_source.html#l00114">flow::net_flow::Peer_socket_options::m_st_max_block_size</a>, <a class="el" href="options_8hpp_source.html#l00198">flow::net_flow::Peer_socket_options::m_st_max_full_blocks_before_ack_send</a>, <a class="el" href="options_8hpp_source.html#l00220">flow::net_flow::Peer_socket_options::m_st_max_rexmissions_per_packet</a>, <a class="el" href="options_8hpp_source.html#l00141">flow::net_flow::Peer_socket_options::m_st_rcv_buf_max_size</a>, <a class="el" href="options_8hpp_source.html#l00171">flow::net_flow::Peer_socket_options::m_st_rcv_buf_max_size_to_advertise_percent</a>, <a class="el" href="options_8hpp_source.html#l00183">flow::net_flow::Peer_socket_options::m_st_rcv_max_packets_after_unrecvd_packet_ratio_percent</a>, <a class="el" href="options_8hpp_source.html#l00267">flow::net_flow::Peer_socket_options::m_st_snd_bandwidth_est_sample_period_floor</a>, and <a class="el" href="options_8hpp_source.html#l00134">flow::net_flow::Peer_socket_options::m_st_snd_buf_max_size</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="server__socket_8cpp_source.html#l00218">listen_worker()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06191">sock_set_options()</a>, and <a class="el" href="node_8cpp_source.html#l00980">validate_options()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="server__socket_8cpp_source.html#l00218">listen_worker()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06197">sock_set_options()</a>, and <a class="el" href="node_8cpp_source.html#l00980">validate_options()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>Ditto. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06068">6068</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06074">6074</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05615">close_abruptly()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04005">connect_worker()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04402">handle_connection_rexmit_timer_event()</a>, <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>, <a class="el" href="node_8cpp_source.html#l00375">perform_accumulated_on_recv_tasks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05551">receive_emptied_rcv_buf_while_disconnecting()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05803">rst_and_close_connection_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04498">setup_drop_timer()</a>, and <a class="el" href="low__lvl__io_8cpp_source.html#l00969">sock_pacing_time_slice_end()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="low__lvl__io_8cpp_source.html#l01019">async_sock_low_lvl_packet_send_or_close_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05621">close_abruptly()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04011">connect_worker()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04408">handle_connection_rexmit_timer_event()</a>, <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>, <a class="el" href="node_8cpp_source.html#l00375">perform_accumulated_on_recv_tasks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05557">receive_emptied_rcv_buf_while_disconnecting()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05809">rst_and_close_connection_immediately()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04504">setup_drop_timer()</a>, and <a class="el" href="low__lvl__io_8cpp_source.html#l00969">sock_pacing_time_slice_end()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See other <a class="el" href="classflow_1_1net__flow_1_1Node.html#aba2e6fc905dbeef3ea9e31bf844f8da5" title="The blocking (synchronous) version of connect().">sync_connect()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04191">4191</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04197">4197</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See <a class="el" href="classflow_1_1net__flow_1_1Node.html#aba2e6fc905dbeef3ea9e31bf844f8da5" title="The blocking (synchronous) version of connect().">sync_connect()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04206">4206</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04212">4212</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae643fd244bd1d6b483295cb9f356b0ae">flow::net_flow::error::S_EVENT_SET_CLOSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">flow::net_flow::Event_set::S_PEER_SOCKET_WRITABLE</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab92ec3b2b78d74acf0fda0786f601df5">flow::net_flow::error::S_WAIT_INTERRUPTED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab835895723a7d71c964b84e0f0b78c3c">flow::net_flow::error::S_WAIT_USER_TIMEOUT</a>, <a class="el" href="util_2util_8hpp_source.html#l00282">flow::util::setup_auto_cleanup()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04206">sync_connect_impl()</a>.</p>
+<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae643fd244bd1d6b483295cb9f356b0ae">flow::net_flow::error::S_EVENT_SET_CLOSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">flow::net_flow::Event_set::S_PEER_SOCKET_WRITABLE</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab92ec3b2b78d74acf0fda0786f601df5">flow::net_flow::error::S_WAIT_INTERRUPTED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab835895723a7d71c964b84e0f0b78c3c">flow::net_flow::error::S_WAIT_USER_TIMEOUT</a>, <a class="el" href="util_2util_8hpp_source.html#l00307">flow::util::setup_auto_cleanup()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04212">sync_connect_impl()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04206">sync_connect_impl()</a>, and <a class="el" href="node_8hpp_source.html#l03956">sync_connect_with_metadata()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04212">sync_connect_impl()</a>, and <a class="el" href="node_8hpp_source.html#l03956">sync_connect_with_metadata()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See <a class="el" href="classflow_1_1net__flow_1_1Node.html#aba2e6fc905dbeef3ea9e31bf844f8da5" title="The blocking (synchronous) version of connect().">sync_connect()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04199">4199</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l04205">4205</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
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 <p class="definition">Definition at line <a class="el" href="node_8hpp_source.html#l03956">3956</a> of file <a class="el" href="node_8hpp_source.html">node.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2detail_2util_8hpp_source.html#l00031">flow::util::chrono_duration_to_fine_duration()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04206">sync_connect_impl()</a>.</p>
+<p class="reference">References <a class="el" href="util_2detail_2util_8hpp_source.html#l00031">flow::util::chrono_duration_to_fine_duration()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04212">sync_connect_impl()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="node_8hpp_source.html#l03967">sync_connect()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="node_8hpp_source.html#l03977">3977</a> of file <a class="el" href="node_8hpp_source.html">node.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="event__set_8cpp_source.html#l00881">event_set_create()</a>, <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, and <a class="el" href="util_2util_8hpp_source.html#l00282">flow::util::setup_auto_cleanup()</a>.</p>
+<p class="reference">References <a class="el" href="event__set_8cpp_source.html#l00881">event_set_create()</a>, <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, and <a class="el" href="util_2util_8hpp_source.html#l00307">flow::util::setup_auto_cleanup()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00234">flow::net_flow::Peer_socket::node_sync_receive()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00149">flow::net_flow::Peer_socket::node_sync_send()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00100">flow::net_flow::Server_socket::sync_accept_impl()</a>.</p>
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@@ -9474,7 +9474,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aa894fd58b246c2a8d6c7c7d2
 
 <p class="definition">Definition at line <a class="el" href="node_8cpp_source.html#l00113">113</a> of file <a class="el" href="node_8cpp_source.html">node.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8cpp_source.html#l00279">flow::log::beautify_chrono_logger_this_thread()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, and <a class="el" href="util_2util_8hpp_source.html#l00342">flow::util::ostream_op_to_string()</a>.</p>
+<p class="reference">References <a class="el" href="log_8cpp_source.html#l00279">flow::log::beautify_chrono_logger_this_thread()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, and <a class="el" href="util_2util_8hpp_source.html#l00367">flow::util::ostream_op_to_string()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
 <div class="dynheader">
@@ -9605,7 +9605,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ab2595f47710ddb06cfb22b67
 
 <p class="definition">Definition at line <a class="el" href="node_8cpp_source.html#l00980">980</a> of file <a class="el" href="node_8cpp_source.html">node.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util__fwd_8hpp_source.html#l00971">FLOW_UTIL_WHERE_AM_I_STR</a>, <a class="el" href="options_8hpp_source.html#l00553">flow::net_flow::Node_options::m_dyn_low_lvl_max_packet_size</a>, <a class="el" href="options_8hpp_source.html#l00580">flow::net_flow::Node_options::m_dyn_sock_opts</a>, <a class="el" href="options_8hpp_source.html#l00525">flow::net_flow::Node_options::m_st_low_lvl_max_buf_size</a>, <a class="el" href="options_8hpp_source.html#l00534">flow::net_flow::Node_options::m_st_timer_min_period</a>, <a class="el" href="peer__socket_8cpp_source.html#l06239">sock_validate_options()</a>, and <a class="el" href="node_8cpp_source.html#l00980">validate_options()</a>.</p>
+<p class="reference">References <a class="el" href="util__fwd_8hpp_source.html#l00971">FLOW_UTIL_WHERE_AM_I_STR</a>, <a class="el" href="options_8hpp_source.html#l00553">flow::net_flow::Node_options::m_dyn_low_lvl_max_packet_size</a>, <a class="el" href="options_8hpp_source.html#l00580">flow::net_flow::Node_options::m_dyn_sock_opts</a>, <a class="el" href="options_8hpp_source.html#l00525">flow::net_flow::Node_options::m_st_low_lvl_max_buf_size</a>, <a class="el" href="options_8hpp_source.html#l00534">flow::net_flow::Node_options::m_st_timer_min_period</a>, <a class="el" href="peer__socket_8cpp_source.html#l06245">sock_validate_options()</a>, and <a class="el" href="node_8cpp_source.html#l00980">validate_options()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="node_8cpp_source.html#l01054">set_options()</a>, and <a class="el" href="node_8cpp_source.html#l00980">validate_options()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="node_8cpp_source.html#l00151">151</a> of file <a class="el" href="node_8cpp_source.html">node.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l00031">async_low_lvl_recv()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00364">close_empty_server_immediately()</a>, <a class="el" href="event__set_8cpp_source.html#l01332">event_set_close_worker()</a>, <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="event__set_8cpp_source.html#l01456">interrupt_all_waits_internal_sig_handler()</a>, <a class="el" href="node_8hpp_source.html#l03880">m_event_loop_ready</a>, <a class="el" href="node_8hpp_source.html#l03804">m_event_sets</a>, <a class="el" href="node_8hpp_source.html#l03764">m_low_lvl_endpoint</a>, <a class="el" href="node_8hpp_source.html#l03771">m_low_lvl_max_buf_size</a>, <a class="el" href="node_8hpp_source.html#l03753">m_low_lvl_sock</a>, <a class="el" href="node_8hpp_source.html#l03704">m_opts</a>, <a class="el" href="node_8hpp_source.html#l03798">m_servs</a>, <a class="el" href="node_8hpp_source.html#l03890">m_signal_set</a>, <a class="el" href="node_8hpp_source.html#l03792">m_socks</a>, <a class="el" href="options_8hpp_source.html#l00517">flow::net_flow::Node_options::m_st_capture_interrupt_signals_internally</a>, <a class="el" href="options_8hpp_source.html#l00525">flow::net_flow::Node_options::m_st_low_lvl_max_buf_size</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="node_8hpp_source.html#l04180">opt()</a>, <a class="el" href="node_8cpp_source.html#l01117">perform_regular_infrequent_tasks()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a5d57c6a6029d7c6a9e5442ac72ac7a6b">flow::net_flow::error::S_NODE_SHUTTING_DOWN</a>, <a class="el" href="node_8hpp_source.html#l03693">S_REGULAR_INFREQUENT_TASKS_PERIOD</a>, <a class="el" href="sched__task_8hpp_source.html#l00034">flow::util::schedule_task_from_now()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01045">sync_sock_low_lvl_rst_send()</a>, and <a class="el" href="node_8cpp_source.html#l00113">this_thread_init_logger_setup()</a>.</p>
+<p class="reference">References <a class="el" href="low__lvl__io_8cpp_source.html#l00031">async_low_lvl_recv()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00364">close_empty_server_immediately()</a>, <a class="el" href="event__set_8cpp_source.html#l01332">event_set_close_worker()</a>, <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="event__set_8cpp_source.html#l01456">interrupt_all_waits_internal_sig_handler()</a>, <a class="el" href="node_8hpp_source.html#l03880">m_event_loop_ready</a>, <a class="el" href="node_8hpp_source.html#l03804">m_event_sets</a>, <a class="el" href="node_8hpp_source.html#l03764">m_low_lvl_endpoint</a>, <a class="el" href="node_8hpp_source.html#l03771">m_low_lvl_max_buf_size</a>, <a class="el" href="node_8hpp_source.html#l03753">m_low_lvl_sock</a>, <a class="el" href="node_8hpp_source.html#l03704">m_opts</a>, <a class="el" href="node_8hpp_source.html#l03798">m_servs</a>, <a class="el" href="node_8hpp_source.html#l03890">m_signal_set</a>, <a class="el" href="node_8hpp_source.html#l03792">m_socks</a>, <a class="el" href="options_8hpp_source.html#l00517">flow::net_flow::Node_options::m_st_capture_interrupt_signals_internally</a>, <a class="el" href="options_8hpp_source.html#l00525">flow::net_flow::Node_options::m_st_low_lvl_max_buf_size</a>, <a class="el" href="node_8hpp_source.html#l03739">m_task_engine</a>, <a class="el" href="node_8hpp_source.html#l04180">opt()</a>, <a class="el" href="node_8cpp_source.html#l01117">perform_regular_infrequent_tasks()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a5d57c6a6029d7c6a9e5442ac72ac7a6b">flow::net_flow::error::S_NODE_SHUTTING_DOWN</a>, <a class="el" href="node_8hpp_source.html#l03693">S_REGULAR_INFREQUENT_TASKS_PERIOD</a>, <a class="el" href="sched__task_8hpp_source.html#l00034">flow::util::schedule_task_from_now()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01045">sync_sock_low_lvl_rst_send()</a>, and <a class="el" href="node_8cpp_source.html#l00113">this_thread_init_logger_setup()</a>.</p>
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@@ -10080,7 +10080,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a266ec5d00a44bc48caf37444
 
 <p class="definition">Definition at line <a class="el" href="node_8hpp_source.html#l03771">3771</a> of file <a class="el" href="node_8hpp_source.html">node.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06382">sock_load_info_struct()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06388">sock_load_info_struct()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
 
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 <p class="definition">Definition at line <a class="el" href="node_8hpp_source.html#l03704">3704</a> of file <a class="el" href="node_8hpp_source.html">node.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="low__lvl__io_8cpp_source.html#l00321">async_low_lvl_packet_send_impl()</a>, <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00046">low_lvl_recv_and_handle()</a>, <a class="el" href="node_8cpp_source.html#l01112">max_block_size()</a>, <a class="el" href="node_8cpp_source.html#l01107">options()</a>, <a class="el" href="node_8cpp_source.html#l01054">set_options()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06382">sock_load_info_struct()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00765">sock_pacing_new_time_slice()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01045">sync_sock_low_lvl_rst_send()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="low__lvl__io_8cpp_source.html#l00321">async_low_lvl_packet_send_impl()</a>, <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00046">low_lvl_recv_and_handle()</a>, <a class="el" href="node_8cpp_source.html#l01112">max_block_size()</a>, <a class="el" href="node_8cpp_source.html#l01107">options()</a>, <a class="el" href="node_8cpp_source.html#l01054">set_options()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06388">sock_load_info_struct()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00765">sock_pacing_new_time_slice()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l01045">sync_sock_low_lvl_rst_send()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
 
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@@ -10254,7 +10254,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#afd6388a362531ada956a864f
 
 <p class="definition">Definition at line <a class="el" href="node_8hpp_source.html#l03777">3777</a> of file <a class="el" href="node_8hpp_source.html">node.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00364">close_empty_server_immediately()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00218">listen_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00364">close_empty_server_immediately()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00218">listen_worker()</a>.</p>
 
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@@ -10340,7 +10340,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aae28990628a86a07327f4997
 
 <p class="definition">Definition at line <a class="el" href="node_8hpp_source.html#l03798">3798</a> of file <a class="el" href="node_8hpp_source.html">node.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00364">close_empty_server_immediately()</a>, <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, <a class="el" href="server__socket_8cpp_source.html#l00218">listen_worker()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00364">close_empty_server_immediately()</a>, <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, <a class="el" href="server__socket_8cpp_source.html#l00218">listen_worker()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
 
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@@ -10401,7 +10401,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ab0026feecdb74eda904d00d2
 
 <p class="definition">Definition at line <a class="el" href="node_8hpp_source.html#l03830">3830</a> of file <a class="el" href="node_8hpp_source.html">node.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00364">close_empty_server_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04792">send_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00364">close_empty_server_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00583">handle_syn_ack_ack_to_syn_rcvd()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04798">send_worker()</a>.</p>
 
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@@ -10430,7 +10430,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a90244d69d550370158bbe843
 
 <p class="definition">Definition at line <a class="el" href="node_8hpp_source.html#l03792">3792</a> of file <a class="el" href="node_8hpp_source.html">node.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">close_connection_immediately()</a>, <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>, <a class="el" href="node_8cpp_source.html#l01117">perform_regular_infrequent_tasks()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">close_connection_immediately()</a>, <a class="el" href="node_8cpp_source.html#l00426">handle_incoming()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">handle_syn_to_listening_server()</a>, <a class="el" href="node_8cpp_source.html#l01117">perform_regular_infrequent_tasks()</a>, and <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>.</p>
 
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@@ -10527,7 +10527,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#af5597a417d03e2bed87cd772
 
 <p class="definition">Definition at line <a class="el" href="node_8hpp_source.html#l03739">3739</a> of file <a class="el" href="node_8hpp_source.html">node.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05397">async_rcv_wnd_recovery()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00255">async_wait_latency_then_handle_incoming()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05615">close_abruptly()</a>, <a class="el" href="server__socket_8cpp_source.html#l00144">listen()</a>, <a class="el" href="node_8cpp_source.html#l01117">perform_regular_infrequent_tasks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05083">receive()</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04520">send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04498">setup_drop_timer()</a>, <a class="el" href="node_8hpp_source.html#l04193">sock_create_forward_plus_ctor_args()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06338">sock_info()</a>, <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>, and <a class="el" href="node_8cpp_source.html#l00139">~Node()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05403">async_rcv_wnd_recovery()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00255">async_wait_latency_then_handle_incoming()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05621">close_abruptly()</a>, <a class="el" href="server__socket_8cpp_source.html#l00144">listen()</a>, <a class="el" href="node_8cpp_source.html#l01117">perform_regular_infrequent_tasks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05089">receive()</a>, <a class="el" href="node_8cpp_source.html#l00420">running()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04526">send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04504">setup_drop_timer()</a>, <a class="el" href="node_8hpp_source.html#l04193">sock_create_forward_plus_ctor_args()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06344">sock_info()</a>, <a class="el" href="node_8cpp_source.html#l00151">worker_run()</a>, and <a class="el" href="node_8cpp_source.html#l00139">~Node()</a>.</p>
 
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket-members.html
index 82d13e341..3bb66ad1b 100644
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket-members.html
@@ -215,7 +215,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket.html
index d251cf98e..6a86db431 100644
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@@ -637,7 +637,7 @@ <h2>Implementation notes </h2>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000124">Todo:</a></b></dt><dd>Rename <code>State</code> and <code>Open_sub_state</code> to <code>Phase</code> and <code>Open_sub_phase</code> respectively; and <code>Int_state</code> to <code>State</code>. Explain difference between phases (application-layer, user-visible and used close to application layer) and states (transport layer, internal).</dd></dl>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000125">Todo:</a></b></dt><dd>Look into a way to defeat the need for boiler-plate trickery &ndash; with low but non-zero perf cost &ndash; involving <code>*_socket</code>-vs-<code><a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a></code> circular references in method templates, such as the way <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#af90b656d7e0b7e746b8beb4e24717cec" title="Sends (adds to the Send buffer) the given bytes of data up to a maximum internal buffer size; and asy...">Peer_socket::send()</a> and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0" title="Receives (consumes from the Receive buffer) bytes of data, up to a given maximum cumulative number of...">Peer_socket::receive()</a> internally make <code><a class="el" href="classflow_1_1Function.html">Function</a>&lt;&gt;</code>s before forwarding to the core in <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a>. Can this be done with <code>.inl</code> files? Look into how Boost internally uses <code>.inl</code> files; this could inspire a solution... or not. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00215">215</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00216">216</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 </div><h2 class="groupheader">Member Typedef Documentation</h2>
 <a id="ae804be57cf09b9bf76eafa8ffff73de6" name="ae804be57cf09b9bf76eafa8ffff73de6"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#ae804be57cf09b9bf76eafa8ffff73de6">&#9670;&nbsp;</a></span>Drop_timer_ptr</h2>
@@ -661,7 +661,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ae804be57cf09b9bf76eafa8f
 
 <p>Short-hand for <code>shared_ptr</code> to immutable <a class="el" href="classflow_1_1net__flow_1_1Drop__timer.html" title="Internal net_flow class that maintains the Drop Timer for DATA packet(s) to have been sent out over a...">Drop_timer</a> (can't use <a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc" title="Short-hand for ref-counted pointer to mutable values of type Target_type::element_type (a-la T*).">Drop_timer::Ptr</a> due to C++ and circular reference). </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00856">856</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00857">857</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -687,7 +687,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a90abde8badaf451ba6ca615e
 
 <p>Short-hand for RAII lock guard of <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ad1e36619c78b15f46576a18678a4ee67" title="Short-hand for reentrant mutex type.">Mutex</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00899">899</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00900">900</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -715,7 +715,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad1e36619c78b15f46576a186
 <p >We explicitly rely on reentrant behavior, so this isn't "just in case."</p>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000131">Todo:</a></b></dt><dd>This doc header for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ad1e36619c78b15f46576a18678a4ee67" title="Short-hand for reentrant mutex type.">Peer_socket::Mutex</a> should specify what specific behavior requires mutex reentrance, so that for example one could reevaluate whether there's a sleeker code pattern that would avoid it. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00896">896</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00897">897</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -741,7 +741,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a98c6729b318f28b61e144f8a
 
 <p>Short-hand for lock that acquires exclusive access to an <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a1e1379f9a0269d6990f26bf1da045657" title="Short-hand for high-performance, non-reentrant, exclusive mutex used to lock m_opts.">Options_mutex</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00888">888</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00889">889</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -769,7 +769,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a1e1379f9a0269d6990f26bf1
 <h3>Rationale</h3>
 <p >You might notice this seems tailor-made for shared/exclusive (a/k/a multiple-readers-single-writer) mutex. Why a 2-level mutex instead of a normal exclusive mutex? Because options can be accessed by thread W and various user threads, in the vast majority of the time to read option values. On the other hand, rarely, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ad59c09f34003873a3c207cc590236773" title="This socket&#39;s per-socket set of options.">m_opts</a> may be modified via <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a7d31cf18a3c075873de1c46c0176e41f" title="Dynamically replaces the current options set (options()) with the given options set.">set_options()</a>. To avoid thread contention when no one is writing (which is usual), we could use that 2-level type of mutex and apply the appropriate (shared or unique) lock depending on the situation. So why not? Answer: While a shared/exclusive mutex sounds lovely in theory &ndash; and perhaps if its implementation were closer to the hardware it would be lovely indeed &ndash; in practice it seems its implementation just causes performance problems rather than solving them. Apparently that's why it was rejected by C++11 standards people w/r/t inclusion in that standard. The people involved explained their decision here: <a href="http://permalink.gmane.org/gmane.comp.lib.boost.devel/211180">http://permalink.gmane.org/gmane.comp.lib.boost.devel/211180</a>. So until that is improved, just do this. I'm not even adding a to-do for fixing this, as that seems unlikely anytime soon. Update: C++17 added <code>std::shared_mutex</code>, and C++14 added a similar thing named something else. Seems like a good time to revisit this &ndash; if not to materially improve <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a1e1379f9a0269d6990f26bf1da045657" title="Short-hand for high-performance, non-reentrant, exclusive mutex used to lock m_opts.">Options_mutex</a> performance then to gain up-to-date knowledge on the topic, specifically whether <code>shared_mutex</code> is fast now. Update: Apparently as of Boost-1.80 the Boost.thread impl of <code>shared_mutex</code> is lacking in perf, and there is a ticket filed for many years for this. Perhaps gcc <code>std::shared_mutex</code> is fine. However research suggests it's less about this nitty-gritty of various impls and more the following bottom line: A simple mutex is <em>very</em> fast to lock/unlock, and perf problems occur only if one must wait for a lock. Experts say that it is possible but quite rare that there is enough lock contention to make it "worth it": a shared mutex is <em>much</em> slower to lock/unlock sans contention. Only when the read critical sections are long and very frequently accessed does it become "worth it." </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00885">885</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00886">886</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -795,7 +795,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a797a524b73e2626fcfefe1be
 
 <p>Short-hand for order number type. 0 is reserved. Caution: Keep in sync with <a class="el" href="classflow_1_1net__flow_1_1Drop__timer.html#a0930c4da4484ffc1f8bcfbc496e5ecd0" title="Type to uniquely identify a packet sent over the wire in the socket to which this Drop_timer applies.">Drop_timer::packet_id_t</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00905">905</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00906">906</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -822,7 +822,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a1869760d5cfc5c0d22665e5d
 <p>Type used for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a48320d96118a37626f1852626965e6ed" title="The queue of DATA packets received while in Int_state::S_SYN_RCVD state before the Syn_ack_ack_packet...">m_rcv_syn_rcvd_data_q</a>. </p>
 <p >Using <code>vector</code> because we only need <code>push_back()</code> and iteration at the moment. Using pointer to non-<code>const</code> instead of <code>const</code> because when we actually handle the packet as received we will need to be able to modify the packet for performance (see <a class="el" href="classflow_1_1net__flow_1_1Node.html#a06e4cea2eefa1b06975864f09740c96b" title="Handles a just-deserialized, just-demultiplexed, low-level DATA packet delivered to the given peer so...">Node::handle_data_to_established()</a>, when it transfers data to Receive buffer). </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00981">981</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00982">982</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -848,7 +848,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ade41e13eb5176d833c7b1ea1
 
 <p>Short-hand for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ae82958ed6d71be46b96eceaca6214143" title="The sequence-number-ordered collection of all received-and-not-dropped-due-to-buffer-overflow packets...">m_rcv_packets_with_gaps</a> <code>const</code> iterator type. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00968">968</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00969">969</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -874,7 +874,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aaec992a7a14368623cc03c43
 
 <p>Short-hand for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ae82958ed6d71be46b96eceaca6214143" title="The sequence-number-ordered collection of all received-and-not-dropped-due-to-buffer-overflow packets...">m_rcv_packets_with_gaps</a> iterator type. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00971">971</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00972">972</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -901,7 +901,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#addfc181f4d43ab816b2ede92
 <p>Short-hand for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ae82958ed6d71be46b96eceaca6214143" title="The sequence-number-ordered collection of all received-and-not-dropped-due-to-buffer-overflow packets...">m_rcv_packets_with_gaps</a> type; see that data member. </p>
 <p ><code>struct</code>s are stored via shared pointers instead of as direct objects to minimize copying of potentially heavy-weight data. They are stored as shared pointers instead of as raw pointers to avoid having to worry about <code>delete</code>. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00965">965</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00966">966</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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 <p>Type used for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a33a90b123612cc2e6a119cfa95ba4f6d" title="Random security token used during SYN_ACK-SYN_ACK_ACK.">m_security_token</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00902">902</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00903">903</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -953,7 +953,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad10b3cd1d32b48cab8146ba4
 
 <p>Short-hand for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad" title="The collection of all In-flight packets, indexed by sequence number and ordered from most to least re...">m_snd_flying_pkts_by_sent_when</a> type; see that data member. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00940">940</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00941">941</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -979,7 +979,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a1958264af0c40f3c9c5769dd
 
 <p>Short-hand for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a2db7d11ece920d4adcacd00eaa2253fd" title="The collection of all In-flight packets (including those queued up to send in pacing module),...">m_snd_flying_pkts_by_seq_num</a> type; see that data member. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00949">949</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00950">950</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -1005,7 +1005,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#abd6f3174914c3ec559954b41
 
 <p>Short-hand for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a2db7d11ece920d4adcacd00eaa2253fd" title="The collection of all In-flight packets (including those queued up to send in pacing module),...">m_snd_flying_pkts_by_seq_num</a> <code>const</code> iterator type. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00952">952</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00953">953</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -1031,7 +1031,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a9320421e96ab89e6528da6a2
 
 <p>Short-hand for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a2db7d11ece920d4adcacd00eaa2253fd" title="The collection of all In-flight packets (including those queued up to send in pacing module),...">m_snd_flying_pkts_by_seq_num</a> iterator type. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00955">955</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00956">956</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -1057,7 +1057,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ac974bdce3d2035d2af690788
 
 <p>Short-hand for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad" title="The collection of all In-flight packets, indexed by sequence number and ordered from most to least re...">m_snd_flying_pkts_by_sent_when</a> <code>const</code> iterator type. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00943">943</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00944">944</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -1083,7 +1083,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ab7dc3b752b67295c82919c2f
 
 <p>Short-hand for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad" title="The collection of all In-flight packets, indexed by sequence number and ordered from most to least re...">m_snd_flying_pkts_by_sent_when</a> iterator type. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00946">946</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00947">947</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00913">913</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00914">914</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00237">237</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00238">238</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00228">228</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00229">229</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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-<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l00269">close_abruptly()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05615">flow::net_flow::Node::close_abruptly()</a>, <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="error_2error_8hpp_source.html#l00168">flow::error::exec_void_and_throw_on_error()</a>, <a class="el" href="util__fwd_8hpp_source.html#l00971">FLOW_UTIL_WHERE_AM_I_STR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, and <a class="el" href="peer__socket_8hpp_source.html#l01217">m_node</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l00269">close_abruptly()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05621">flow::net_flow::Node::close_abruptly()</a>, <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="error_2error_8hpp_source.html#l00168">flow::error::exec_void_and_throw_on_error()</a>, <a class="el" href="util__fwd_8hpp_source.html#l00971">FLOW_UTIL_WHERE_AM_I_STR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, and <a class="el" href="peer__socket_8hpp_source.html#l01218">m_node</a>.</p>
 
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00101">101</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01312">m_disconnect_cause</a>, and <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01313">m_disconnect_cause</a>, and <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="asio_2peer__socket_8cpp_source.html#l00132">flow::net_flow::asio::Peer_socket::node_or_post_error()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00390">390</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l00419">ensure_open()</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8cpp_source.html#l00390">get_connect_metadata()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, and <a class="el" href="peer__socket_8hpp_source.html#l01328">m_serialized_metadata</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l00419">ensure_open()</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8cpp_source.html#l00390">get_connect_metadata()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, and <a class="el" href="peer__socket_8hpp_source.html#l01329">m_serialized_metadata</a>.</p>
 
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00323">323</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02166">m_info_on_close</a>, <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01217">m_node</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06338">flow::net_flow::Node::sock_info()</a>.</p>
+<p class="reference">References <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02167">m_info_on_close</a>, <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01218">m_node</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06344">flow::net_flow::Node::sock_info()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00384">384</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01347">m_local_port</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01348">m_local_port</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06508">operator&lt;&lt;()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06514">operator&lt;&lt;()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00352">352</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01178">m_opts</a>, <a class="el" href="options_8hpp_source.html#l00114">flow::net_flow::Peer_socket_options::m_st_max_block_size</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02644">opt()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01179">m_opts</a>, <a class="el" href="options_8hpp_source.html#l00114">flow::net_flow::Peer_socket_options::m_st_max_block_size</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02639">opt()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00424">bytes_blocks_str()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03951">flow::net_flow::Node::connect_with_metadata()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00357">max_block_size_multiple()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00424">bytes_blocks_str()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03957">flow::net_flow::Node::connect_with_metadata()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00357">max_block_size_multiple()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00357">357</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00233">flow::util::ceil_div()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01178">m_opts</a>, <a class="el" href="peer__socket_8hpp_source.html#l01181">m_opts_mutex</a>, <a class="el" href="options_8hpp_source.html#l00114">flow::net_flow::Peer_socket_options::m_st_max_block_size</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00352">max_block_size()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00258">flow::util::ceil_div()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01179">m_opts</a>, <a class="el" href="peer__socket_8hpp_source.html#l01182">m_opts_mutex</a>, <a class="el" href="options_8hpp_source.html#l00114">flow::net_flow::Peer_socket_options::m_st_max_block_size</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00352">max_block_size()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00095">95</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, and <a class="el" href="peer__socket_8hpp_source.html#l01217">m_node</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, and <a class="el" href="peer__socket_8hpp_source.html#l01218">m_node</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="asio_2peer__socket_8cpp_source.html#l00132">flow::net_flow::asio::Peer_socket::node_or_post_error()</a>.</p>
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-<p class="reference">References <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01217">m_node</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05083">flow::net_flow::Node::receive()</a>.</p>
+<p class="reference">References <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01218">m_node</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05089">flow::net_flow::Node::receive()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02552">receive()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02547">receive()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00134">134</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01217">m_node</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04520">flow::net_flow::Node::send()</a>.</p>
+<p class="reference">References <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01218">m_node</a>, and <a class="el" href="peer__socket_8cpp_source.html#l04526">flow::net_flow::Node::send()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02448">send()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02443">send()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00234">234</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01217">m_node</a>, <a class="el" href="peer__socket_8cpp_source.html#l00037">Peer_socket()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05083">flow::net_flow::Node::receive()</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a7cedcbdde2b86daeb1268c63c6cb6b88">flow::net_flow::Event_set::S_PEER_SOCKET_READABLE</a>, and <a class="el" href="node_8hpp_source.html#l03977">flow::net_flow::Node::sync_op()</a>.</p>
+<p class="reference">References <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01218">m_node</a>, <a class="el" href="peer__socket_8cpp_source.html#l00037">Peer_socket()</a>, <a class="el" href="peer__socket_8cpp_source.html#l05089">flow::net_flow::Node::receive()</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a7cedcbdde2b86daeb1268c63c6cb6b88">flow::net_flow::Event_set::S_PEER_SOCKET_READABLE</a>, and <a class="el" href="node_8hpp_source.html#l03977">flow::net_flow::Node::sync_op()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02610">sync_receive_impl()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00197">sync_receive_reactor_pattern_impl()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02605">sync_receive_impl()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00197">sync_receive_reactor_pattern_impl()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00149">149</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01217">m_node</a>, <a class="el" href="peer__socket_8cpp_source.html#l00037">Peer_socket()</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">flow::net_flow::Event_set::S_PEER_SOCKET_WRITABLE</a>, <a class="el" href="peer__socket_8cpp_source.html#l04520">flow::net_flow::Node::send()</a>, and <a class="el" href="node_8hpp_source.html#l03977">flow::net_flow::Node::sync_op()</a>.</p>
+<p class="reference">References <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01218">m_node</a>, <a class="el" href="peer__socket_8cpp_source.html#l00037">Peer_socket()</a>, <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">flow::net_flow::Event_set::S_PEER_SOCKET_WRITABLE</a>, <a class="el" href="peer__socket_8cpp_source.html#l04526">flow::net_flow::Node::send()</a>, and <a class="el" href="node_8hpp_source.html#l03977">flow::net_flow::Node::sync_op()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02518">sync_send_impl()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00112">sync_send_reactor_pattern_impl()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02513">sync_send_impl()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00112">sync_send_reactor_pattern_impl()</a>.</p>
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 <dl class="section return"><dt>Returns</dt><dd>A copy of the value at the given reference. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02644">2644</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02639">2639</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01181">m_opts_mutex</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01182">m_opts_mutex</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00352">max_block_size()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00318">options()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00373">rexmit_on()</a>.</p>
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-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01178">m_opts</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02644">opt()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01179">m_opts</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02639">opt()</a>.</p>
 
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 <dl class="section return"><dt>Returns</dt><dd>The number of bytes consumed (placed into <code>target</code>). Always 0 if <code>bool(*err_code) == true</code> when <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0" title="Receives (consumes from the Receive buffer) bytes of data, up to a given maximum cumulative number of...">receive()</a> returns. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02552">2552</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02547">2547</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="socket__buffer_8hpp_source.html#l00543">flow::net_flow::Socket_buffer::consume_bufs_copy()</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01260">m_rcv_buf</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00219">node_receive()</a>.</p>
+<p class="reference">References <a class="el" href="socket__buffer_8hpp_source.html#l00543">flow::net_flow::Socket_buffer::consume_bufs_copy()</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01261">m_rcv_buf</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00219">node_receive()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00378">378</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01344">m_remote_endpoint</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01345">m_remote_endpoint</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06508">operator&lt;&lt;()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06514">operator&lt;&lt;()</a>.</p>
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@@ -2234,9 +2234,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a89d852e3722532d75006b024
 
 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00373">373</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01178">m_opts</a>, <a class="el" href="options_8hpp_source.html#l00214">flow::net_flow::Peer_socket_options::m_st_rexmit_on</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02644">opt()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01179">m_opts</a>, <a class="el" href="options_8hpp_source.html#l00214">flow::net_flow::Peer_socket_options::m_st_rexmit_on</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02639">opt()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02545">flow::net_flow::Node::categorize_individual_ack()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03102">flow::net_flow::Node::drop_pkts_on_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03317">flow::net_flow::Node::drop_timer_action()</a>, <a class="el" href="peer__socket_8cpp_source.html#l02061">flow::net_flow::Node::handle_accumulated_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00560">flow::net_flow::Node::handle_data_to_established()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l03635">flow::net_flow::Node::log_snd_window()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02551">flow::net_flow::Node::categorize_individual_ack()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03108">flow::net_flow::Node::drop_pkts_on_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03323">flow::net_flow::Node::drop_timer_action()</a>, <a class="el" href="peer__socket_8cpp_source.html#l02067">flow::net_flow::Node::handle_accumulated_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00560">flow::net_flow::Node::handle_data_to_established()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l03641">flow::net_flow::Node::log_snd_window()</a>.</p>
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@@ -2312,9 +2312,9 @@ <h3>Reliability and ordering guarantees: if the socket option rexmit-on is NOT e
 </dl>
 <dl class="section return"><dt>Returns</dt><dd>Number of bytes (possibly zero) added to buffer. Always 0 if <code>bool(*err_code) == true</code> when <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#af90b656d7e0b7e746b8beb4e24717cec" title="Sends (adds to the Send buffer) the given bytes of data up to a maximum internal buffer size; and asy...">send()</a> returns. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02448">2448</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02443">2443</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="socket__buffer_8hpp_source.html#l00391">flow::net_flow::Socket_buffer::feed_bufs_copy()</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01278">m_snd_buf</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00134">node_send()</a>.</p>
+<p class="reference">References <a class="el" href="socket__buffer_8hpp_source.html#l00391">flow::net_flow::Socket_buffer::feed_bufs_copy()</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01279">m_snd_buf</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00134">node_send()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00297">297</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01217">m_node</a>, <a class="el" href="peer__socket_8cpp_source.html#l00297">set_options()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06191">flow::net_flow::Node::sock_set_options()</a>.</p>
+<p class="reference">References <a class="el" href="node_8hpp_source.html#l04141">flow::net_flow::Node::ensure_sock_open()</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01218">m_node</a>, <a class="el" href="peer__socket_8cpp_source.html#l00297">set_options()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06197">flow::net_flow::Node::sock_set_options()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00297">set_options()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00085">85</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01201">m_open_sub_state</a>, <a class="el" href="peer__socket_8hpp_source.html#l01192">m_state</a>, and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">S_OPEN</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01202">m_open_sub_state</a>, <a class="el" href="peer__socket_8hpp_source.html#l01193">m_state</a>, and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">S_OPEN</a>.</p>
 
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd><code>true</code> if there are 1+ bytes ready to read; <code>false</code> if either a timeout has occurred (no bytes ready), or another error has occurred. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02601">2601</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02596">2596</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">References <a class="el" href="util_2detail_2util_8hpp_source.html#l00042">flow::util::chrono_duration_from_now_to_fine_time_pt()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00197">sync_receive_reactor_pattern_impl()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00192">192</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l02591">sync_receive()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l02586">sync_receive()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>Number of bytes (possibly zero) added to target. Always 0 if <code>bool(*err_code) == true</code> when <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b" title="Blocking (synchronous) version of receive().">sync_receive()</a> returns. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02591">2591</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02586">2586</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2detail_2util_8hpp_source.html#l00042">flow::util::chrono_duration_from_now_to_fine_time_pt()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02610">sync_receive_impl()</a>.</p>
+<p class="reference">References <a class="el" href="util_2detail_2util_8hpp_source.html#l00042">flow::util::chrono_duration_from_now_to_fine_time_pt()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02605">sync_receive_impl()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00192">sync_receive()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See other <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b" title="Blocking (synchronous) version of receive().">sync_receive()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02585">2585</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02580">2580</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l02610">sync_receive_impl()</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l02605">sync_receive_impl()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b" title="Blocking (synchronous) version of receive().">sync_receive()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02610">2610</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02605">2605</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="socket__buffer_8hpp_source.html#l00543">flow::net_flow::Socket_buffer::consume_bufs_copy()</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01260">m_rcv_buf</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00234">node_sync_receive()</a>.</p>
+<p class="reference">References <a class="el" href="socket__buffer_8hpp_source.html#l00543">flow::net_flow::Socket_buffer::consume_bufs_copy()</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01261">m_rcv_buf</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00234">node_sync_receive()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02585">sync_receive()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02580">sync_receive()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00197">197</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, <a class="el" href="peer__socket_8cpp_source.html#l00234">node_sync_receive()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00197">sync_receive_reactor_pattern_impl()</a>.</p>
+<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, <a class="el" href="peer__socket_8cpp_source.html#l00234">node_sync_receive()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00197">sync_receive_reactor_pattern_impl()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02601">sync_receive()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00197">sync_receive_reactor_pattern_impl()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02596">sync_receive()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00197">sync_receive_reactor_pattern_impl()</a>.</p>
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@@ -2876,7 +2876,7 @@ <h3>Error handling</h3>
 </dl>
 <dl class="section return"><dt>Returns</dt><dd><code>true</code> if 1+ bytes are possible to add to Send buffer; <code>false</code> if either a timeout has occurred (bytes not writable), or another error has occurred. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02508">2508</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02503">2503</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">References <a class="el" href="util_2detail_2util_8hpp_source.html#l00042">flow::util::chrono_duration_from_now_to_fine_time_pt()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00112">sync_send_reactor_pattern_impl()</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00107">107</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l02497">sync_send()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>Number of bytes (possibly zero) added to Send buffer. Always 0 if <code>bool(*err_code) == true</code> when <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2" title="Blocking (synchronous) version of send().">sync_send()</a> returns. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02497">2497</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02492">2492</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2detail_2util_8hpp_source.html#l00042">flow::util::chrono_duration_from_now_to_fine_time_pt()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02518">sync_send_impl()</a>.</p>
+<p class="reference">References <a class="el" href="util_2detail_2util_8hpp_source.html#l00042">flow::util::chrono_duration_from_now_to_fine_time_pt()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02513">sync_send_impl()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00107">sync_send()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See other <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2" title="Blocking (synchronous) version of send().">sync_send()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02491">2491</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02486">2486</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l02518">sync_send_impl()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2" title="Blocking (synchronous) version of send().">sync_send()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02518">2518</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02513">2513</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="socket__buffer_8hpp_source.html#l00391">flow::net_flow::Socket_buffer::feed_bufs_copy()</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01278">m_snd_buf</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00149">node_sync_send()</a>.</p>
+<p class="reference">References <a class="el" href="socket__buffer_8hpp_source.html#l00391">flow::net_flow::Socket_buffer::feed_bufs_copy()</a>, <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, <a class="el" href="peer__socket_8hpp_source.html#l01279">m_snd_buf</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00149">node_sync_send()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02491">sync_send()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02486">sync_send()</a>.</p>
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@@ -3201,9 +3201,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a15ba1d4af6d4e3fcab9534a3
 
 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00112">112</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01341">m_mutex</a>, <a class="el" href="peer__socket_8cpp_source.html#l00149">node_sync_send()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00112">sync_send_reactor_pattern_impl()</a>.</p>
+<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00357">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>, <a class="el" href="peer__socket_8hpp_source.html#l01342">m_mutex</a>, <a class="el" href="peer__socket_8cpp_source.html#l00149">node_sync_send()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00112">sync_send_reactor_pattern_impl()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02508">sync_send()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00112">sync_send_reactor_pattern_impl()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02503">sync_send()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00112">sync_send_reactor_pattern_impl()</a>.</p>
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@@ -3243,7 +3243,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad1b055f28b89531ad9836828
 <p>Congestion control modules have const access to all socket internals. </p>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Congestion__control__classic.html" title="Classic congestion control, based on Reno (TCP RFC 5681), with congestion avoidance,...">Congestion_control_classic</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00846">846</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00847">847</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -3270,7 +3270,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a73cd234409fb43c27e1f46f2
 <p>Congestion control modules have const access to all socket internals. </p>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Congestion__control__classic__data.html" title="Utility class for use by Congestion_control_strategy implementations that implements congestion windo...">Congestion_control_classic_data</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00841">841</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00842">842</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -3297,7 +3297,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a7020b02ef7daffcfd9004e41
 <p>Congestion control modules have const access to all socket internals. </p>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Congestion__control__classic__with__bandwidth__est.html" title="Classic congestion control but with backoff to bandwidth estimate-based pipe size.">Congestion_control_classic_with_bandwidth_est</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00851">851</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00852">852</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -3324,7 +3324,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad1259416e25ed2bd94bce319
 <p>For access to <code>Sent_pkt_by_sent_when_map</code> and <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html" title="Metadata (and data, if retransmission is on) for a packet that has been sent one (if retransmission i...">Sent_packet</a> types, at least. </p>
 <p >(<a class="el" href="classflow_1_1net__flow_1_1Drop__timer.html" title="Internal net_flow class that maintains the Drop Timer for DATA packet(s) to have been sent out over a...">Drop_timer</a> has no actual <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> instance to mess with.) </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00831">831</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00832">832</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -3351,7 +3351,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a6db9d28bd448a131448276ee
 <p>See rationale for <code>friend</code>ing <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> in class <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> documentation header. </p>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00821">821</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00822">822</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -3401,7 +3401,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a8497776b61df32a79707c264
 </dl>
 <dl class="section return"><dt>Returns</dt><dd><code>os</code>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06508">6508</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06514">6514</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 <p class="reference">References <a class="el" href="peer__socket_8cpp_source.html#l00384">local_port()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00378">remote_endpoint()</a>.</p>
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@@ -3457,7 +3457,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a03ea7069aa4779abaf274989
 </dl>
 <dl class="section return"><dt>Returns</dt><dd><code>os</code>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06531">6531</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06537">6537</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
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 <p>Stats modules have const access to all socket internals. </p>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Send__bandwidth__estimator.html" title="A per-Peer_socket module that tries to estimate the bandwidth available to the outgoing flow.">Send_bandwidth_estimator</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00836">836</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00837">837</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04005">flow::net_flow::Node::connect_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04011">flow::net_flow::Node::connect_worker()</a>.</p>
 
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@@ -3513,7 +3513,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a2165381af6166d76afba0686
 <p>See rationale for <code>friend</code>ing <a class="el" href="classflow_1_1net__flow_1_1Server__socket.html" title="A server socket able to listen on a single Flow port for incoming connections and return peer sockets...">Server_socket</a> in class <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> documentation header. </p>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Server__socket.html" title="A server socket able to listen on a single Flow port for incoming connections and return peer sockets...">Server_socket</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00826">826</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l00827">827</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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 <p><code>true</code> if we connect() to server; <code>false</code> if we are to be/are <code>accept()</code>ed. Should be set once and not modified. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01184">1184</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01185">1185</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex.</p>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a85b3d271527dbaa04b1d9f751631fd71" title="Connection attempt scheduled task; fires if an individual connection request packet is not answered w...">m_init_rexmit_scheduled_task</a> which keeps track of <em>individual</em> attempts timing out, as opposed to the entire process. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02158">2158</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02159">2159</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -3603,7 +3603,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a4fb8e8df98efa023e8bd4bd8
 <h3>Thread safety</h3>
 <p >Since user threads will access this at least via <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0" title="Receives (consumes from the Receive buffer) bytes of data, up to a given maximum cumulative number of...">receive()</a> and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#af90b656d7e0b7e746b8beb4e24717cec" title="Sends (adds to the Send buffer) the given bytes of data up to a maximum internal buffer size; and asy...">send()</a>, while thread W may set it having detected disconnection, this must be protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01312">1312</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01313">1313</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00101">disconnect_cause()</a>.</p>
 
@@ -3632,7 +3632,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ac4c942e1bb6c4dc4b24251f2
 <p>This is the final set of stats collected at the time the socket was moved to S_CLOSED <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a05a765055fd54412c63e57e43697f1bc" title="See state().">m_state</a>. </p>
 <p >If it has not yet moved to that state, this is not applicable (but equals Peer_socket_info()). It's used by <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aad81cc16fc6f0d353fdc1379e1dd4712" title="Returns a structure containing the most up-to-date stats about this connection.">info()</a> to get at the final set of stats, before the source info is purged by the resource cleanup in sock_free_memory(). </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02166">2166</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02167">2167</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00323">info()</a>.</p>
 
@@ -3662,7 +3662,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a0d1eecb59c62912b5630359d
 <p >So when the timer is readied the first time it's zero; if it fires and is thus readied again it's one; again =&gt; two; etc., until timer is canceled or connection is aborted due to too many retries.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02144">2144</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02145">2145</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -3692,7 +3692,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a85b3d271527dbaa04b1d9f75
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex.</p>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ad772e56de286567c4b7a681907b5f285" title="Connection timeout scheduled task; fires if the entire initial connection process does not complete w...">m_connection_timeout_scheduled_task</a> which keeps track of the entire process timing out, as opposed to the individual attempts. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02133">2133</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02134">2134</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -3720,7 +3720,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a2c5de5df50268168cbbad82e
 <p >Note this is a very central piece of information and is analogous to TCP's "state" (ESTABLISHED, etc. etc.).</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01356">1356</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01357">1357</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -3746,7 +3746,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a7b65c1b26e38a2ae614d9a12
 
 <p>See <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a7af387476aa0bdc6b3906c153d824acb" title="The local Flow-protocol port chosen by the Node (if active or passive open) or user (if passive open)...">local_port()</a>. Should be set before user gets access to <code>*this</code> and not changed afterwards. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01347">1347</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01348">1348</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00384">local_port()</a>.</p>
 
@@ -3776,9 +3776,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#ab41b19ed4e62cb14fcd7dac8
 <p >The protected items are <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a05a765055fd54412c63e57e43697f1bc" title="See state().">m_state</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ae5d47460784cc20c9e44237edffaac95" title="See state().">m_open_sub_state</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a4fb8e8df98efa023e8bd4bd825475a18" title="The Error_code causing disconnection (if one has occurred or is occurring) on this socket; otherwise ...">m_disconnect_cause</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a36ab27af6886c7699f9965a5eb296cd6" title="See node().">m_node</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3" title="The Receive buffer; Node feeds data at the back; user consumes data at the front.">m_rcv_buf</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a993edf95f6bce2e57e7111e42533dc74" title="The Send buffer; user feeds data at the back; Node consumes data at the front.">m_snd_buf</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a322dddf34a06bb199dab02c993bad686" title="If !m_active_connect, this contains the serialized metadata that the user supplied on the other side ...">m_serialized_metadata</a>.</p>
 <p >Generally speaking, if 2 or more of the protected variables must be changed in the same non-blocking "operation" (for some reasonable definition of "operation"), they should probably be changed within the same <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41" title="This object&#39;s mutex.">m_mutex</a>-locking critical section. For example, if closing the socket in thread W due to an incoming RST, one should lock <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41" title="This object&#39;s mutex.">m_mutex</a>, clear both buffers, set <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a4fb8e8df98efa023e8bd4bd825475a18" title="The Error_code causing disconnection (if one has occurred or is occurring) on this socket; otherwise ...">m_disconnect_cause</a>, change <code>m_state = <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f" title="Neither future reads nor writes are possible, AND Node has disowned the Peer_socket.">State::S_CLOSED</a></code>, and then unlock <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41" title="This object&#39;s mutex.">m_mutex</a>. Then thread U != W will observe all this state changed at the "same time," which is desirable. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01341">1341</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01342">1342</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00269">close_abruptly()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00101">disconnect_cause()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00390">get_connect_metadata()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00323">info()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00095">node()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00234">node_sync_receive()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00149">node_sync_send()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02552">receive()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02448">send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00297">set_options()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00085">state()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02610">sync_receive_impl()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00197">sync_receive_reactor_pattern_impl()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02518">sync_send_impl()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00112">sync_send_reactor_pattern_impl()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00269">close_abruptly()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00101">disconnect_cause()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00390">get_connect_metadata()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00323">info()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00095">node()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00234">node_sync_receive()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00149">node_sync_send()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02547">receive()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02443">send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00297">set_options()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00085">state()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02605">sync_receive_impl()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00197">sync_receive_reactor_pattern_impl()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02513">sync_send_impl()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00112">sync_send_reactor_pattern_impl()</a>.</p>
 
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@@ -3808,7 +3808,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a36ab27af6886c7699f9965a5
 <p >Accessed from thread W and user threads U != W (in <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aa9e7e1be830c901bc7348742e79ba2e7" title="Node that produced this Peer_socket.">node()</a> and others). Must be protected by mutex.</p>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000133">Todo:</a></b></dt><dd><code>boost::weak_ptr&lt;<a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a>&gt;</code> would be ideal for this, but of course then <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> would have to (only?) be available via shared_ptr&lt;&gt;. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01217">1217</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01218">1218</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00269">close_abruptly()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00323">info()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00095">node()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00219">node_receive()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00134">node_send()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00234">node_sync_receive()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00149">node_sync_send()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00297">set_options()</a>.</p>
 
@@ -3838,7 +3838,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ae5d47460784cc20c9e44237e
 <p >Should be set before user gets access to <code>*this</code>. Must not be modified by non-W threads after that.</p>
 <p >Accessed from thread W and user threads U != W (in <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#af982953b5136c1df488066eacc293a78" title="Current State of the socket.">state()</a> and others). Must be protected by mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01201">1201</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01202">1202</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00085">state()</a>.</p>
 
@@ -3868,9 +3868,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad59c09f34003873a3c207cc5
 <p >Initialized at construction; can be subsequently modified by <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a7d31cf18a3c075873de1c46c0176e41f" title="Dynamically replaces the current options set (options()) with the given options set.">set_options()</a>, although only the dynamic members of this may be modified.</p>
 <p >Accessed from thread W and user thread U != W. Protected by <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a" title="The mutex protecting m_opts.">m_opts_mutex</a>. When reading, do NOT access without locking (which is encapsulated in <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#accf6d724ed1f145716ae3d4567f582f3" title="Analogous to Node::opt() but for per-socket options.">opt()</a>). </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01178">1178</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01179">1179</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04005">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00352">max_block_size()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00357">max_block_size_multiple()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00318">options()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00373">rexmit_on()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04011">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00352">max_block_size()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00357">max_block_size_multiple()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00318">options()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l00373">rexmit_on()</a>.</p>
 
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@@ -3896,9 +3896,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#addfbe1487c621d4a9c464aec
 
 <p>The mutex protecting <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ad59c09f34003873a3c207cc590236773" title="This socket&#39;s per-socket set of options.">m_opts</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01181">1181</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01182">1182</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04005">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00357">max_block_size_multiple()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02644">opt()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04011">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00357">max_block_size_multiple()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02639">opt()</a>.</p>
 
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@@ -3928,7 +3928,7 @@ <h3>Thread safety</h3>
 <p >This can be write-accessed simultaneously by thread W (e.g., when closing a socket before it is accepted) and a user thread U != W (in <a class="el" href="classflow_1_1net__flow_1_1Server__socket.html#aeea8554e23c8d743ca4956c772adbf24" title="Non-blocking accept: obtain socket for the least recently established not-yet-obtained peer connectio...">Server_socket::accept()</a>). It is thus protected by a mutex &ndash; but it's <a class="el" href="classflow_1_1net__flow_1_1Server__socket.html#a40967c1981ffde4f7b75c6bb5e5b279b" title="This object&#39;s mutex.">Server_socket::m_mutex</a>, not <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41" title="This object&#39;s mutex.">Peer_socket::m_mutex</a>. I know it's weird, but it makes sense. Basically <a class="el" href="classflow_1_1net__flow_1_1Server__socket.html#a7ba32040008ffe0637d3a1847deb76c5" title="Queue of passively opened sockets in Peer_socket::Int_state::S_ESTABLISHED internal state that have n...">Server_socket::m_unaccepted_socks</a> and Server_socket::m_originating_serv &ndash; for each element of <code>m_unaccepted_socks</code> &ndash; are modified together in a synchronized way.</p>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Server__socket.html#a16bcbf9951c24d13d5b84d9aa163288e" title="Set of passively opening sockets in pre-ESTABLISHED (so SYN_RCVD?) internal state (and thus are not y...">Server_socket::m_connecting_socks</a> and <a class="el" href="classflow_1_1net__flow_1_1Server__socket.html#a7ba32040008ffe0637d3a1847deb76c5" title="Queue of passively opened sockets in Peer_socket::Int_state::S_ESTABLISHED internal state that have n...">Server_socket::m_unaccepted_socks</a> for the closely related inverse. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01241">1241</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01242">1242</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -3958,7 +3958,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a8229396adfd306d15e8a05da
 <p >Storing shared pointers to avoid copying of structs (however small) during internal reshuffling; shared instead of raw pointers to not worry about delete.</p>
 <p >This gains meaning only in thread W and only within <a class="el" href="classflow_1_1net__flow_1_1Node.html#a9909cd2b2a77c57da9e35fcef0f8a4e5" title="Handles the pre-condition that m_low_lvl_sock has a UDP packet available for reading,...">Node::low_lvl_recv_and_handle()</a>/etc. and loses meaning after either method exits. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01604">1604</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01605">1605</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -3989,9 +3989,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#aae9cb8f2dbd50ddaa0265d94
 <h3>Thread safety</h3>
 <p >This can be write-accessed simultaneously by thread W (when receiving by <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a>) and a user thread U != W (in <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0" title="Receives (consumes from the Receive buffer) bytes of data, up to a given maximum cumulative number of...">receive()</a>, etc.). It is thus protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01260">1260</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01261">1261</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02552">receive()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02610">sync_receive_impl()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02547">receive()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02605">sync_receive_impl()</a>.</p>
 
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@@ -4021,7 +4021,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a88f967e74f8618c94088113e
 <h3>Implementation notes</h3>
 <p >In other places we have tended to replace a <code>Timer</code> with the far simpler <a class="el" href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667" title="Schedule the given function to execute in a certain amount of time: A handy wrapper around Timer (asi...">util::schedule_task_from_now()</a> (etc.) facility (which internally uses a <code>Timer</code> but hides its various annoyances and caveats). Why not here? Answer: This timer is scheduled and fires often (could be on the order of every 1-500 milliseconds) and throughout a given socket's existence; hence the potential performance effects aren't worth the risk (or at least mental energy spent on evaluating that risk, originally and over time). The conservative thing to do is reuse a single <code>Timer</code> repeatedly, as we do here. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01674">1674</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01675">1675</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4048,7 +4048,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad7414dfca4b869dd3a4e0de3
 <p><code>true</code> indicates we are in a state where we've decided other side needs to be informed that our receive window has increased substantially, so that it can resume sending data (probably after a zero window being advertised). </p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01636">1636</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01637">1637</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4075,7 +4075,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a5dc05d1f5deb71e1259c5d5a
 <p>The Initial Sequence Number (ISN) contained in the original <a class="el" href="structflow_1_1net__flow_1_1Syn__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level SYN packet.">Syn_packet</a> or <a class="el" href="structflow_1_1net__flow_1_1Syn__ack__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK packet.">Syn_ack_packet</a> we received. </p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. Useful at least in verifying the validity of duplicate SYNs and SYN_ACKs. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01386">1386</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01387">1387</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00825">flow::net_flow::Node::sock_categorize_data_to_established()</a>.</p>
 
@@ -4105,7 +4105,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a7fa76b609ef0aa5962d8de77
 <p >This is used to gauge how much the true rcv_wnd has increased since the value that the sender probably (assuming ACK was not lost) knows.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01626">1626</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01627">1627</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4134,7 +4134,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a13c640ebd14a75df3894e7d8
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ae82958ed6d71be46b96eceaca6214143" title="The sequence-number-ordered collection of all received-and-not-dropped-due-to-buffer-overflow packets...">m_rcv_packets_with_gaps</a>.</dd></dl>
 <p>This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01401">1401</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01402">1402</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4201,7 +4201,7 @@ <h3>Memory use</h3>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aa7398394052c8e634365fb979c294644" title="With retransmission enabled, the sum of Received_packet::m_size over all packets stored in the reasse...">m_rcv_reassembly_q_data_size</a>.</dd></dl>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000134">Todo:</a></b></dt><dd>The memory use of this structure could be greatly optimized if, instead of storing each individual received packet's metadata separately, we always merged contiguous sequence number ranges. So for example if packet P1, P2, P3 (contiguous) all arrived in sequence, after missing packet P0, then we'd store P1's first sequence number and the total data size of P1+P2+P3, in a single <code>struct</code> instance. Since a typical pattern might include 1 lost packet followed by 100 received packets, we'd be able to cut down memory use by a factor of about 100 in that case (and thus worry much less about the limit). Of course the code would get more complex and potentially slower (but not necessarily significantly). </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01536">1536</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01537">1537</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4231,7 +4231,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad46ed439a3d118eb2b540e9f
 <p >Storing shared pointers to avoid copying of structs (however small) during internal reshuffling; shared instead of raw pointers to not worry about delete.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01566">1566</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01567">1567</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4259,7 +4259,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a780f86759f861a3a84de8c5c
 <p >Because, for efficiency, individual acknowledgements are accumulated over the course of those two methods, and an ACK with those acknowledgments is sent at the end of that method (in perform_accumulated_on_recv_tasks()) at the earliest, this member is used to determine whether we should start a delayed ACK timer at that point.</p>
 <p >This gains meaning only in thread W and only within <a class="el" href="classflow_1_1net__flow_1_1Node.html#a9909cd2b2a77c57da9e35fcef0f8a4e5" title="Handles the pre-condition that m_low_lvl_sock has a UDP packet available for reading,...">Node::low_lvl_recv_and_handle()</a>/etc. and loses meaning after either method exits. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01580">1580</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01581">1581</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4287,7 +4287,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aa7398394052c8e634365fb97
 <p >Stored for performance.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01545">1545</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01546">1546</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4313,7 +4313,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a7d1f1d381749473f7a2471b8
 
 <p>Stats regarding incoming traffic (and resulting outgoing ACKs) for this connection so far. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01677">1677</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01678">1678</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4340,7 +4340,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a1553bbefc3407cf84eaa8e25
 <p>The running total count of bytes in the <code>m_data</code> fields of <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a48320d96118a37626f1852626965e6ed" title="The queue of DATA packets received while in Int_state::S_SYN_RCVD state before the Syn_ack_ack_packet...">m_rcv_syn_rcvd_data_q</a>. </p>
 <p >Undefined when the latter is empty. Used to limit its size. This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01376">1376</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01377">1377</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4368,7 +4368,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a48320d96118a37626f185262
 <p >Such DATA packets would not normally exist, but they can exist if the SYN_ACK_ACK is lost or DATA packets are re-ordered to go ahead of it. See <a class="el" href="classflow_1_1net__flow_1_1Node.html#abf80b7de1398e93d1d4289ef5bf2ae2c" title="Handles a just-deserialized, just-demultiplexed, low-level DATA packet delivered to the given peer so...">Node::handle_data_to_syn_rcvd()</a> for more detail.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01369">1369</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01370">1370</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4395,7 +4395,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#afd590cc70d06b8e903027e49
 <p>When <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ad7414dfca4b869dd3a4e0de39195c69e" title="true indicates we are in a state where we&#39;ve decided other side needs to be informed that our receive...">m_rcv_in_rcv_wnd_recovery</a> is <code>true</code>, this is the scheduled task to possibly send another unsolicited rcv_wnd-advertising ACK to the other side. </p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01654">1654</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01655">1655</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4423,7 +4423,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a5476d9206f997fc9119b2a80
 <p >It is only used when the latter is indeed true.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01645">1645</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01646">1646</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4449,7 +4449,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a218ec098984b754b43940001
 
 <p>See <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a5e423a9fd18a45cc7cc5fc34af29161e" title="Intended other side of the connection (regardless of success, failure, or current State).">remote_endpoint()</a>. Should be set before user gets access to <code>*this</code> and not changed afterwards. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01344">1344</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01345">1345</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00378">remote_endpoint()</a>.</p>
 
@@ -4478,7 +4478,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a27ce5b19ab4abcf61aa07153
 <p>RTTVAR used for <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ad08b53052e7eedfa7a925258f5ef1cba" title="Estimated current round trip time of packets, computed as a smooth value over the past individual RTT...">m_snd_smoothed_round_trip_time</a> calculation. </p>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ad08b53052e7eedfa7a925258f5ef1cba" title="Estimated current round trip time of packets, computed as a smooth value over the past individual RTT...">m_snd_smoothed_round_trip_time</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02041">2041</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02042">2042</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4506,7 +4506,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a33a90b123612cc2e6a119cfa
 <p >For a given connection handshake, the SYN_ACK_ACK receiver ensures that <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a33a90b123612cc2e6a119cfa95ba4f6d" title="Random security token used during SYN_ACK-SYN_ACK_ACK.">m_security_token</a> it received is equal to the original one it had sent in SYN_ACK. This first gains meaning upong sending SYN_ACK and it does not change afterwards. It is not used unless <code>!m_active_connect</code>. See <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a288ccfc742d6982c4059d82500397874" title="true if we connect() to server; false if we are to be/are accept()ed. Should be set once and not modi...">m_active_connect</a>.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02117">2117</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02118">2118</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4535,7 +4535,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a322dddf34a06bb199dab02c9
 <h3>Thread safety</h3>
 <p >Same as <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a993edf95f6bce2e57e7111e42533dc74" title="The Send buffer; user feeds data at the back; Node consumes data at the front.">m_snd_buf</a> and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3" title="The Receive buffer; Node feeds data at the back; user consumes data at the front.">m_rcv_buf</a> (protected by <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41" title="This object&#39;s mutex.">m_mutex</a>). This would not be necessary, since this value is immutable once user gets access to <code>*this</code>, and threads other than W can access it, but sock_free_memory() does clear it while the user may be accessing it. Due to that caveat, we have to lock it. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01328">1328</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01329">1329</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00390">get_connect_metadata()</a>.</p>
 
@@ -4569,7 +4569,7 @@ <h3>Visibility between <a class="el" href="classflow_1_1net__flow_1_1Send__bandw
 <p >The former gets read-only (<code>const</code>!) but otherwise complete private access (via <code>friend</code>) to the contents of <code>*this</code> <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a>. For example, it can read <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ad08b53052e7eedfa7a925258f5ef1cba" title="Estimated current round trip time of packets, computed as a smooth value over the past individual RTT...">m_snd_smoothed_round_trip_time</a> (the SRTT) and use it for computations if needed. <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> get only strict public API access to <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a2dd08c5fed4d179e4fde3a632c084751" title="The outgoing available bandwidth estimator for this connection on this side.">m_snd_bandwidth_estimator</a>, which is a black box to it.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02022">2022</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02023">2023</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4599,9 +4599,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a993edf95f6bce2e57e7111e4
 <p >Note that this is a high-level structure, near the application layer. This does not store any metadata, like sequence numbers, or data not ready to be consumed by the user (such as out-of-order packets, if we implement that). Such packets and data should be stored elsewhere.</p>
 <p >Thread safety: Analogous to <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3" title="The Receive buffer; Node feeds data at the back; user consumes data at the front.">m_rcv_buf</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01278">1278</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01279">1279</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02448">send()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02518">sync_send_impl()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8hpp_source.html#l02443">send()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02513">sync_send_impl()</a>.</p>
 
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@@ -4633,7 +4633,7 @@ <h3>Visibility between <a class="el" href="classflow_1_1net__flow_1_1Congestion_
 <p ><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a35eb43f2b5d7dd46a941def4523f673c" title="The congestion control strategy in use for this connection on this side.">m_snd_cong_ctl</a> gets read-only (<code>const</code>!) but otherwise complete private access (via <code>friend</code>) to the contents of <code>*this</code> <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a>. For example, it can read <code>this-&gt;m_snd_smoothed_round_trip_time</code> (the SRTT) and use it for computations if needed. <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> get only strict public API access to <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a35eb43f2b5d7dd46a941def4523f673c" title="The congestion control strategy in use for this connection on this side.">m_snd_cong_ctl</a>, which is a black box to it.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01977">1977</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01978">1978</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4661,7 +4661,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a2d8aded3761028967fd3abb4
 <p >This is updated each time <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ad08b53052e7eedfa7a925258f5ef1cba" title="Estimated current round trip time of packets, computed as a smooth value over the past individual RTT...">m_snd_smoothed_round_trip_time</a> is updated, and the <a class="el" href="classflow_1_1net__flow_1_1Drop__timer.html" title="Internal net_flow class that maintains the Drop Timer for DATA packet(s) to have been sent out over a...">Drop_timer</a> itself may change it under certain circumstances.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02061">2061</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02062">2062</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4689,7 +4689,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a037459e6f1345cedf45e490d
 <p >Used while <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a2c5de5df50268168cbbad82eaf90fa93" title="Current internal state of the socket.">m_int_state</a> is <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202" title="Public state is OPEN+CONNECTED; in our opinion the connection is established.">Int_state::S_ESTABLISHED</a>.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02051">2051</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02052">2052</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4719,7 +4719,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ae870847f024fca7109c15557
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex.</p>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad" title="The collection of all In-flight packets, indexed by sequence number and ordered from most to least re...">m_snd_flying_pkts_by_sent_when</a>, which must always be updated to be accurate w/r/t <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#ae870847f024fca7109c15557bb165480" title="The number of bytes contained in all In-flight packets, used at least for comparison against the cong...">m_snd_flying_bytes</a>. Use <a class="el" href="classflow_1_1net__flow_1_1Node.html#a00124a034c8fdac6f300900bdfcc8cfe" title="Updates Peer_socket::m_snd_flying_bytes according to an operation (add packets, remove packets) calle...">Node::snd_flying_pkts_updated()</a> whenever <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad" title="The collection of all In-flight packets, indexed by sequence number and ordered from most to least re...">m_snd_flying_pkts_by_sent_when</a> is changed. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01898">1898</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01899">1899</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4765,7 +4765,7 @@ <h3>Thread safety</h3>
 <dd>
 <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a2db7d11ece920d4adcacd00eaa2253fd" title="The collection of all In-flight packets (including those queued up to send in pacing module),...">m_snd_flying_pkts_by_seq_num</a>, which provides an ordering of the elements of <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad" title="The collection of all In-flight packets, indexed by sequence number and ordered from most to least re...">m_snd_flying_pkts_by_sent_when</a> by sequence number. Whereas the present structure is used to determine <code>m_acks_after_me</code> (since logically "after" means "sent after"), <code>..._by_seq_num</code> is akin to the more classic TCP scoreboard, which is used to subdivide the sequence number space (closely related to <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a1f8bebf649551131e6ed6e75c6f98d54" title="The sequence number for the start of the data in the next new DATA packet to be sent out.">m_snd_next_seq_num</a> and such). With retransmission off, "after" would simply mean "having higher sequence number," so <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad" title="The collection of all In-flight packets, indexed by sequence number and ordered from most to least re...">m_snd_flying_pkts_by_sent_when</a> would already provide this ordering, but with retransmission on a retransmitted packet with a lower number could be sent after one with a higher number. To make the code simpler, we therefore rely on a separate structure in either situation. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01805">1805</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01806">1806</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4832,7 +4832,7 @@ <h3>Thread safety</h3>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex.</p>
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad" title="The collection of all In-flight packets, indexed by sequence number and ordered from most to least re...">m_snd_flying_pkts_by_sent_when</a>. There's a "see also" comment there that contrasts these two important structures. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01879">1879</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01880">1880</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4861,7 +4861,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aca66d1cb582ca027745d1ef8
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a2db7d11ece920d4adcacd00eaa2253fd" title="The collection of all In-flight packets (including those queued up to send in pacing module),...">m_snd_flying_pkts_by_seq_num</a> and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad" title="The collection of all In-flight packets, indexed by sequence number and ordered from most to least re...">m_snd_flying_pkts_by_sent_when</a>.</dd></dl>
 <p>This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01688">1688</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01689">1689</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4892,7 +4892,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#af392484f79ffcead4f74ca35
 <h3>Pacing</h3>
 <p >See Send_packet_pacing <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a55b44104a2c305b9679434ba623a7357" title="The state of outgoing packet pacing for this socket; segregated into a simple struct to keep Peer_soc...">m_snd_pacing_data</a>. See pacing-relevant note on <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e" title="Time stamps, order numbers, and other info at the times when the different attempts (including origin...">Sent_packet::m_sent_when</a> which applies equally to this data member. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02103">2103</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02104">2104</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4921,7 +4921,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aa9f77167af54cfe2921fab5f
 <p >Before any loss events, this is set to its default value (zero time since epoch).</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02087">2087</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02088">2088</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4950,7 +4950,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a1ec79951579d595bb790be87
 <p >This is only used for book-keeping locally and never transmitted over network.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01929">1929</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01930">1930</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -4980,7 +4980,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a1f8bebf649551131e6ed6e75
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a2db7d11ece920d4adcacd00eaa2253fd" title="The collection of all In-flight packets (including those queued up to send in pacing module),...">m_snd_flying_pkts_by_seq_num</a> and <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad" title="The collection of all In-flight packets, indexed by sequence number and ordered from most to least re...">m_snd_flying_pkts_by_sent_when</a>.</dd></dl>
 <p>This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01702">1702</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01703">1703</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -5008,7 +5008,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a55b44104a2c305b9679434ba
 <p >Packet pacing tries to combat the burstiness of outgoing low-level packet stream.</p>
 <dl class="section see"><dt>See also</dt><dd><code>struct <a class="el" href="structflow_1_1net__flow_1_1Send__pacing__data.html" title="The current outgoing packet pacing state, including queue of low-level packets to be sent,...">Send_pacing_data</a></code> doc header for much detail. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02070">2070</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02071">2071</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -5036,7 +5036,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a07d885e5c8ec85e7ef8718dc
 <p >The reasoning is similar to <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a8229396adfd306d15e8a05dac3fe8c29" title="While Node::low_lvl_recv_and_handle() or async part of Node::async_wait_latency_then_handle_incoming(...">m_rcv_acked_packets</a>. See <a class="el" href="classflow_1_1net__flow_1_1Node.html#ab515b28350c43635728d6de0e37ccb94" title="Handles a just-deserialized, just-demultiplexed, low-level ACK packet delivered to the given peer soc...">Node::handle_ack_to_established()</a> for details.</p>
 <p >This gains meaning only in thread W and only within <a class="el" href="classflow_1_1net__flow_1_1Node.html#a9909cd2b2a77c57da9e35fcef0f8a4e5" title="Handles the pre-condition that m_low_lvl_sock has a UDP packet available for reading,...">Node::low_lvl_recv_and_handle()</a>/etc. and loses meaning after either method exits. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01616">1616</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01617">1617</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -5065,7 +5065,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a12611e0ac9e8b86b8304b855
 <p ><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a35eb43f2b5d7dd46a941def4523f673c" title="The congestion control strategy in use for this connection on this side.">m_snd_cong_ctl</a> provides congestion control; this value provides flow control. The socket's state machine must be extremely careful whenever either this value or <code>m_snd_cong_ctl-&gt;congestion_window_bytes()</code> may increase, as when that occurs it should call <a class="el" href="classflow_1_1net__flow_1_1Node.html#a10a92f11a2c9f218cdd9a55f282e79b1" title="Thread W implemention of send(): synchronously or asynchronously send the contents of sock-&gt;m_snd_buf...">Node::send_worker()</a> in order to possibly send data over the network.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01994">1994</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01995">1995</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -5095,7 +5095,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a845f21b754ef641b65b1fe44
 <p >Why use <code>list&lt;&gt;</code> and not <code>queue&lt;&gt;</code> or <code>deque&lt;&gt;</code>? Answer: I'd like to use <code>list::splice()</code>.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01946">1946</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01947">1947</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -5121,7 +5121,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a9f5063c85a2070822cf69a53
 
 <p>Equals <code>m_snd_rexmit_q.size().</code> Kept since <code>m_snd_rexmit_q.size()</code> may be <em>O(n)</em> depending on implementation. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01949">1949</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01950">1950</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -5150,7 +5150,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad08b53052e7eedfa7a925258
 <p >We use <a class="el" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79" title="A high-res time duration as computed from two Fine_time_pts.">Fine_duration</a> (the high fine-grainedness and large bit width corresponding to <a class="el" href="namespaceflow.html#a8f2e48761f9ca3ffcaa29872078bbf00" title="Clock used for delicate time measurements, such that the now() method gets the current time relative ...">Fine_clock</a>) to store this, and the algorithm we use to compute it avoids losing digits via unnecessary conversions between units (e.g., nanoseconds -&gt; milliseconds).</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02038">2038</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02039">2039</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -5176,7 +5176,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ab4aff3e65ef9551b6c5ab890
 
 <p>Stats regarding outgoing traffic (and resulting incoming ACKs) for this connection so far. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02106">2106</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02107">2107</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -5204,7 +5204,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aea98297d775f2085c21daf41
 <p >The pattern is to simply <code>clear()</code> it just before use, then load it up with stuff in that same round of ACK handling; and the same thing each time we need to handle accumulated ACKs. Normally one would just create one of these locally within the code <code>{</code> block <code>}</code> each time instead. Not doing so avoids unnecessary various internal-to-<code>vector</code> buffer allocations. Instead the internal buffer will grow as large as it needs to and not go down from there, so that it can be reused in subsequent operations. (Even <code>clear()</code> does not internally shrink the buffer.) Of course some memory is held unnecessarily, but it's a small amount; on the other hand the performance gain may be non-trivial due to the frequency of the ACK-handling code being invoked.</p>
 <p >This gains meaning only in thread W. This should NOT be accessed outside of thread W and is not protected by a mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01915">1915</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01916">1916</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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@@ -5232,7 +5232,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a05a765055fd54412c63e57e4
 <p >Should be set before user gets access to <code>*this</code>. Must not be modified by non-W threads after that.</p>
 <p >Accessed from thread W and user threads U != W (in <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#af982953b5136c1df488066eacc293a78" title="Current State of the socket.">state()</a> and others). Must be protected by mutex. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01192">1192</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l01193">1193</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00085">state()</a>.</p>
 
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator-members.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket__send__stats-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket__send__stats-members.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket__send__stats.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket__send__stats.html
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket__send__stats__accumulator-members.html
@@ -121,7 +121,7 @@
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket__send__stats__accumulator.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket__send__stats__accumulator.html
index 888d5f1c9..6bda2b429 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket__send__stats__accumulator.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Peer__socket__send__stats__accumulator.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Port__space-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Port__space-members.html
index 43b333d34..443c88835 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Port__space-members.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Port__space.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Port__space.html
index e5965133a..64d070578 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Port__space.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Port__space.html
@@ -424,7 +424,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ac43e4303aac2bde697b99bf0
 
 <p class="definition">Definition at line <a class="el" href="port__space_8cpp_source.html#l00067">67</a> of file <a class="el" href="port__space_8cpp_source.html">port_space.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00262">flow::util::in_closed_open_range()</a>, <a class="el" href="port__space_8hpp_source.html#l00108">S_FIRST_SERVICE_PORT</a>, and <a class="el" href="port__space_8hpp_source.html#l00102">S_NUM_SERVICE_PORTS</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00287">flow::util::in_closed_open_range()</a>, <a class="el" href="port__space_8hpp_source.html#l00108">S_FIRST_SERVICE_PORT</a>, and <a class="el" href="port__space_8hpp_source.html#l00102">S_NUM_SERVICE_PORTS</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="port__space_8cpp_source.html#l00075">reserve_port()</a>, and <a class="el" href="port__space_8cpp_source.html#l00175">return_port()</a>.</p>
 <div class="dynheader">
@@ -580,9 +580,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a9fe1be917ff7584ff587b5da
 
 <p class="definition">Definition at line <a class="el" href="port__space_8cpp_source.html#l00175">175</a> of file <a class="el" href="port__space_8cpp_source.html">port_space.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="util_2util_8hpp_source.html#l00262">flow::util::in_closed_open_range()</a>, <a class="el" href="port__space_8cpp_source.html#l00067">is_service_port()</a>, <a class="el" href="port__space_8hpp_source.html#l00234">m_ephemeral_and_recent_ephemeral_ports</a>, <a class="el" href="port__space_8hpp_source.html#l00219">m_ephemeral_ports</a>, <a class="el" href="port__space_8hpp_source.html#l00243">m_recent_ephemeral_ports</a>, <a class="el" href="port__space_8hpp_source.html#l00213">m_service_ports</a>, <a class="el" href="port__space_8hpp_source.html#l00111">S_FIRST_EPHEMERAL_PORT</a>, <a class="el" href="port__space_8hpp_source.html#l00108">S_FIRST_SERVICE_PORT</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a0eac39cc62ef841927a2f69a3c04db4e">flow::net_flow::error::S_INTERNAL_ERROR_PORT_NOT_TAKEN</a>, <a class="el" href="port__space_8hpp_source.html#l00205">S_MAX_RECENT_EPHEMERAL_PORTS</a>, and <a class="el" href="port__space_8hpp_source.html#l00105">S_NUM_EPHEMERAL_PORTS</a>.</p>
+<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00202">FLOW_ERROR_EMIT_ERROR</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="util_2util_8hpp_source.html#l00287">flow::util::in_closed_open_range()</a>, <a class="el" href="port__space_8cpp_source.html#l00067">is_service_port()</a>, <a class="el" href="port__space_8hpp_source.html#l00234">m_ephemeral_and_recent_ephemeral_ports</a>, <a class="el" href="port__space_8hpp_source.html#l00219">m_ephemeral_ports</a>, <a class="el" href="port__space_8hpp_source.html#l00243">m_recent_ephemeral_ports</a>, <a class="el" href="port__space_8hpp_source.html#l00213">m_service_ports</a>, <a class="el" href="port__space_8hpp_source.html#l00111">S_FIRST_EPHEMERAL_PORT</a>, <a class="el" href="port__space_8hpp_source.html#l00108">S_FIRST_SERVICE_PORT</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a0eac39cc62ef841927a2f69a3c04db4e">flow::net_flow::error::S_INTERNAL_ERROR_PORT_NOT_TAKEN</a>, <a class="el" href="port__space_8hpp_source.html#l00205">S_MAX_RECENT_EPHEMERAL_PORTS</a>, and <a class="el" href="port__space_8hpp_source.html#l00105">S_NUM_EPHEMERAL_PORTS</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">flow::net_flow::Node::close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00364">flow::net_flow::Node::close_empty_server_immediately()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00218">flow::net_flow::Node::listen_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">flow::net_flow::Node::close_connection_immediately()</a>, <a class="el" href="server__socket_8cpp_source.html#l00364">flow::net_flow::Node::close_empty_server_immediately()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00218">flow::net_flow::Node::listen_worker()</a>.</p>
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 Here is the call graph for this function:</div>
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@@ -920,7 +920,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad93c0b6f23be37efe0f96ab0
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Send__bandwidth__estimator-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Send__bandwidth__estimator-members.html
index f00e48596..af589efb1 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Send__bandwidth__estimator-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Send__bandwidth__estimator-members.html
@@ -101,7 +101,7 @@
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Send__bandwidth__estimator.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Send__bandwidth__estimator.html
index 1c75a91ed..453363dee 100644
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Send__bandwidth__estimator.html
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number-members.html
index 9e42a2055..f4770a445 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number-members.html
@@ -103,7 +103,7 @@
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number.html
index 82a35601c..b19b3d49c 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number.html
@@ -888,7 +888,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a77ce8cf348e93caa8bb03f22
 
 <p class="reference">References <a class="el" href="seq__num_8hpp_source.html#l00356">m_multiple_size</a>, <a class="el" href="seq__num_8hpp_source.html#l00347">m_num</a>, <a class="el" href="seq__num_8hpp_source.html#l00350">m_num_line_id</a>, and <a class="el" href="seq__num_8hpp_source.html#l00353">m_zero_point_num</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04005">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00513">flow::net_flow::Syn_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00565">flow::net_flow::Syn_ack_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00655">flow::net_flow::Data_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00785">flow::net_flow::Ack_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00433">flow::net_flow::Node::handle_syn_to_listening_server()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04011">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00513">flow::net_flow::Syn_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00565">flow::net_flow::Syn_ack_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00655">flow::net_flow::Data_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00785">flow::net_flow::Ack_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, and <a class="el" href="server__socket_8cpp_source.html#l00433">flow::net_flow::Node::handle_syn_to_listening_server()</a>.</p>
 <div class="dynheader">
 Here is the caller graph for this function:</div>
 <div class="dyncontent">
@@ -1185,7 +1185,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#adcd83d66fac1a77d9e94f13d
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 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number_1_1Generator-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number_1_1Generator-members.html
index d762f220f..71937f1e0 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number_1_1Generator-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number_1_1Generator-members.html
@@ -94,7 +94,7 @@
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 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html
index 34aaaf28b..fc609215c 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Server__socket-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Server__socket-members.html
index 2391c595b..a0a455f9e 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Server__socket-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Server__socket-members.html
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 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Server__socket.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Server__socket.html
index c058e817c..87ab5e8e3 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Server__socket.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Server__socket.html
@@ -1247,7 +1247,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a7ba32040008ffe0637d3a184
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Socket__buffer-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Socket__buffer-members.html
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@@ -104,7 +104,7 @@
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Socket__buffer.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Socket__buffer.html
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1Socket__buffer.html
@@ -408,9 +408,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a8fe3fe5f6a33cfd8fb84eb26
 
 <p class="definition">Definition at line <a class="el" href="socket__buffer_8cpp_source.html#l00103">103</a> of file <a class="el" href="socket__buffer_8cpp_source.html">socket_buffer.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00481">flow::util::buffers_dump_string()</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00543">consume_bufs_copy()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00383">m_data_size</a>, and <a class="el" href="socket__buffer_8hpp_source.html#l00375">m_q</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00506">flow::util::buffers_dump_string()</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00543">consume_bufs_copy()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00383">m_data_size</a>, and <a class="el" href="socket__buffer_8hpp_source.html#l00375">m_q</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04792">flow::net_flow::Node::send_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04798">flow::net_flow::Node::send_worker()</a>.</p>
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@@ -462,9 +462,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#af60133c1d6825246b54f10f2
 
 <p class="definition">Definition at line <a class="el" href="socket__buffer_8hpp_source.html#l00543">543</a> of file <a class="el" href="socket__buffer_8hpp_source.html">socket_buffer.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00481">flow::util::buffers_dump_string()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00383">m_data_size</a>, and <a class="el" href="socket__buffer_8hpp_source.html#l00375">m_q</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00506">flow::util::buffers_dump_string()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00383">m_data_size</a>, and <a class="el" href="socket__buffer_8hpp_source.html#l00375">m_q</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="socket__buffer_8cpp_source.html#l00103">consume_buf_move()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02552">flow::net_flow::Peer_socket::receive()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02610">flow::net_flow::Peer_socket::sync_receive_impl()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="socket__buffer_8cpp_source.html#l00103">consume_buf_move()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02547">flow::net_flow::Peer_socket::receive()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02605">flow::net_flow::Peer_socket::sync_receive_impl()</a>.</p>
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@@ -659,7 +659,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#af21cd24bba62da1d16a8fc4f
 
 <p class="reference">References <a class="el" href="socket__buffer_8hpp_source.html#l00383">m_data_size</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04792">flow::net_flow::Node::send_worker()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04798">flow::net_flow::Node::send_worker()</a>.</p>
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@@ -733,7 +733,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a689b49e578de0a3fe7d376da
 
 <p class="definition">Definition at line <a class="el" href="socket__buffer_8cpp_source.html#l00039">39</a> of file <a class="el" href="socket__buffer_8cpp_source.html">socket_buffer.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00481">flow::util::buffers_dump_string()</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00391">feed_bufs_copy()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00352">m_block_size_hint</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00383">m_data_size</a>, and <a class="el" href="socket__buffer_8hpp_source.html#l00375">m_q</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00506">flow::util::buffers_dump_string()</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00391">feed_bufs_copy()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00352">m_block_size_hint</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00383">m_data_size</a>, and <a class="el" href="socket__buffer_8hpp_source.html#l00375">m_q</a>.</p>
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@@ -791,9 +791,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a69a0c514df820c36e7109fb1
 
 <p class="definition">Definition at line <a class="el" href="socket__buffer_8hpp_source.html#l00391">391</a> of file <a class="el" href="socket__buffer_8hpp_source.html">socket_buffer.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00481">flow::util::buffers_dump_string()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00352">m_block_size_hint</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00383">m_data_size</a>, and <a class="el" href="socket__buffer_8hpp_source.html#l00375">m_q</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00506">flow::util::buffers_dump_string()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00352">m_block_size_hint</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00383">m_data_size</a>, and <a class="el" href="socket__buffer_8hpp_source.html#l00375">m_q</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="socket__buffer_8cpp_source.html#l00039">feed_buf_move()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02448">flow::net_flow::Peer_socket::send()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02518">flow::net_flow::Peer_socket::sync_send_impl()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="socket__buffer_8cpp_source.html#l00039">feed_buf_move()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02443">flow::net_flow::Peer_socket::send()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02513">flow::net_flow::Peer_socket::sync_send_impl()</a>.</p>
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@@ -956,7 +956,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ab9d0faeeb2a8d1058b24319e
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Node-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Node-members.html
index bdef2138d..4102add29 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Node-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Node-members.html
@@ -282,7 +282,7 @@
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Node.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Node.html
index 7551f3fe6..7531c5a0a 100644
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Node.html
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 <p class="definition">Definition at line <a class="el" href="asio_2peer__socket_8cpp_source.html#l00171">171</a> of file <a class="el" href="asio_2peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="asio_2node_8cpp_source.html#l00040">async_task_engine()</a>, <a class="el" href="asio_2peer__socket_8cpp_source.html#l00152">flow::net_flow::asio::Peer_socket::cast()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03951">flow::net_flow::Node::connect_with_metadata()</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab835895723a7d71c964b84e0f0b78c3c">flow::net_flow::error::S_WAIT_USER_TIMEOUT</a>.</p>
+<p class="reference">References <a class="el" href="asio_2node_8cpp_source.html#l00040">async_task_engine()</a>, <a class="el" href="asio_2peer__socket_8cpp_source.html#l00152">flow::net_flow::asio::Peer_socket::cast()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03957">flow::net_flow::Node::connect_with_metadata()</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::S_CLOSED</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab835895723a7d71c964b84e0f0b78c3c">flow::net_flow::error::S_WAIT_USER_TIMEOUT</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="asio_2node_8hpp_source.html#l00916">async_connect()</a>, and <a class="el" href="asio_2node_8hpp_source.html#l00943">async_connect_with_metadata()</a>.</p>
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 </div><!-- contents -->
 <!-- start footer part -->
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Peer__socket-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Peer__socket-members.html
index 7e0d127c5..781055761 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Peer__socket-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Peer__socket-members.html
@@ -233,7 +233,7 @@
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Peer__socket.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Peer__socket.html
index f1b58e0b1..58019f464 100644
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Peer__socket.html
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Server__socket-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Server__socket-members.html
index 2e733a31d..de460b065 100644
--- a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Server__socket-members.html
+++ b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Server__socket-members.html
@@ -133,7 +133,7 @@
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Server__socket.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1asio_1_1Server__socket.html
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1error_1_1Category-members.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1error_1_1Category-members.html
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1error_1_1Category.html b/doc/flow_doc/generated/html_full/classflow_1_1net__flow_1_1error_1_1Category.html
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 <p class="definition">Definition at line <a class="el" href="net__flow_2error_2error_8cpp_source.html#l00107">107</a> of file <a class="el" href="net__flow_2error_2error_8cpp_source.html">error.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00342">flow::util::ostream_op_to_string()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482aac3ec8d83192e9cd271376fce4001e99">flow::net_flow::error::S_CANNOT_CONNECT_TO_IP_ANY</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a9a2cbc62120ca52c1f7e695b56b2bdcd">flow::net_flow::error::S_CONN_METADATA_TOO_LARGE</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482aa220d89e1d0e34bab02ed2fc7512be9b">flow::net_flow::error::S_CONN_REFUSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab2c97d0fbc585d3726ec79c7802da891">flow::net_flow::error::S_CONN_RESET_BAD_PEER_BEHAVIOR</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a138a08bb4d41be4cdbc6311a1a617cf4">flow::net_flow::error::S_CONN_RESET_BY_OTHER_SIDE</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a3c1dc923491f5e20763fc27d025665d4">flow::net_flow::error::S_CONN_RESET_TOO_MANY_REXMITS</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a074451c0bc9f5ae37e0c8fbe82677090">flow::net_flow::error::S_CONN_TIMEOUT</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae643fd244bd1d6b483295cb9f356b0ae">flow::net_flow::error::S_EVENT_SET_CLOSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482adccb025a96014a74a1435481ec2b58ac">flow::net_flow::error::S_EVENT_SET_DOUBLE_WAIT_OR_POLL</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a8f3a13ffefc4897da606c86e60a4422f">flow::net_flow::error::S_EVENT_SET_EVENT_ALREADY_EXISTS</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a96f464959b6ce918048a2167c23f1c0b">flow::net_flow::error::S_EVENT_SET_EVENT_DOES_NOT_EXIST</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a3f2c29ade2454001982c033a37fd9c79">flow::net_flow::error::S_EVENT_SET_IMMUTABLE_WHEN_WAITING</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a5cbb0762dc20632c76db479f40237492">flow::net_flow::error::S_EVENT_SET_NO_EVENTS</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a3e273da0f7d2f231dbfaab8d07fd5ecd">flow::net_flow::error::S_EVENT_SET_RESULT_CHECK_WHEN_WAITING</a>, <a class="el" href="port__space_8hpp_source.html#l00108">flow::net_flow::Port_space::S_FIRST_SERVICE_PORT</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae90ff1c87f2393dd6b14232b159f02b2">flow::net_flow::error::S_INTERNAL_ERROR_PORT_COLLISION</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a0eac39cc62ef841927a2f69a3c04db4e">flow::net_flow::error::S_INTERNAL_ERROR_PORT_NOT_TAKEN</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae020e63f3ada47025681c8d7f2a00f28">flow::net_flow::error::S_INTERNAL_ERROR_SYSTEM_ERROR_ASIO_TIMER</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482abb79e941df00b67a8631a9361ee5a4d1">flow::net_flow::error::S_INVALID_SERVICE_PORT_NUMBER</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a5d57c6a6029d7c6a9e5442ac72ac7a6b">flow::net_flow::error::S_NODE_SHUTTING_DOWN</a>, <a class="el" href="port__space_8hpp_source.html#l00102">flow::net_flow::Port_space::S_NUM_SERVICE_PORTS</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a5e0c2b54a5427bc09ecf0dee603ce450">flow::net_flow::error::S_OPTION_CHECK_FAILED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a1975df7ed76c42660cbdc6039d5c70c5">flow::net_flow::error::S_OUT_OF_PORTS</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a2c42b01b60ebe4834e9be3933ce94cb6">flow::net_flow::error::S_PORT_TAKEN</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a8ad7147a3e4e63313c7a5954790cd458">flow::net_flow::error::S_SEQ_NUM_ARITHMETIC_FAILURE</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a891201a96c5838bbb24cc9ed08b47765">flow::net_flow::error::S_SEQ_NUM_IMPLIES_CONNECTION_COLLISION</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ad7b8da59bb61205572fe985c29863e58">flow::net_flow::error::S_STATIC_OPTION_CHANGED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a35606f4143e15dbe6bc03a543599dec8">flow::net_flow::error::S_USER_CLOSED_ABRUPTLY</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab92ec3b2b78d74acf0fda0786f601df5">flow::net_flow::error::S_WAIT_INTERRUPTED</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab835895723a7d71c964b84e0f0b78c3c">flow::net_flow::error::S_WAIT_USER_TIMEOUT</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00367">flow::util::ostream_op_to_string()</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482aac3ec8d83192e9cd271376fce4001e99">flow::net_flow::error::S_CANNOT_CONNECT_TO_IP_ANY</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a9a2cbc62120ca52c1f7e695b56b2bdcd">flow::net_flow::error::S_CONN_METADATA_TOO_LARGE</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482aa220d89e1d0e34bab02ed2fc7512be9b">flow::net_flow::error::S_CONN_REFUSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab2c97d0fbc585d3726ec79c7802da891">flow::net_flow::error::S_CONN_RESET_BAD_PEER_BEHAVIOR</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a138a08bb4d41be4cdbc6311a1a617cf4">flow::net_flow::error::S_CONN_RESET_BY_OTHER_SIDE</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a3c1dc923491f5e20763fc27d025665d4">flow::net_flow::error::S_CONN_RESET_TOO_MANY_REXMITS</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a074451c0bc9f5ae37e0c8fbe82677090">flow::net_flow::error::S_CONN_TIMEOUT</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae643fd244bd1d6b483295cb9f356b0ae">flow::net_flow::error::S_EVENT_SET_CLOSED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482adccb025a96014a74a1435481ec2b58ac">flow::net_flow::error::S_EVENT_SET_DOUBLE_WAIT_OR_POLL</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a8f3a13ffefc4897da606c86e60a4422f">flow::net_flow::error::S_EVENT_SET_EVENT_ALREADY_EXISTS</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a96f464959b6ce918048a2167c23f1c0b">flow::net_flow::error::S_EVENT_SET_EVENT_DOES_NOT_EXIST</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a3f2c29ade2454001982c033a37fd9c79">flow::net_flow::error::S_EVENT_SET_IMMUTABLE_WHEN_WAITING</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a5cbb0762dc20632c76db479f40237492">flow::net_flow::error::S_EVENT_SET_NO_EVENTS</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a3e273da0f7d2f231dbfaab8d07fd5ecd">flow::net_flow::error::S_EVENT_SET_RESULT_CHECK_WHEN_WAITING</a>, <a class="el" href="port__space_8hpp_source.html#l00108">flow::net_flow::Port_space::S_FIRST_SERVICE_PORT</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae90ff1c87f2393dd6b14232b159f02b2">flow::net_flow::error::S_INTERNAL_ERROR_PORT_COLLISION</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a0eac39cc62ef841927a2f69a3c04db4e">flow::net_flow::error::S_INTERNAL_ERROR_PORT_NOT_TAKEN</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae020e63f3ada47025681c8d7f2a00f28">flow::net_flow::error::S_INTERNAL_ERROR_SYSTEM_ERROR_ASIO_TIMER</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482abb79e941df00b67a8631a9361ee5a4d1">flow::net_flow::error::S_INVALID_SERVICE_PORT_NUMBER</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::S_NODE_NOT_RUNNING</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a5d57c6a6029d7c6a9e5442ac72ac7a6b">flow::net_flow::error::S_NODE_SHUTTING_DOWN</a>, <a class="el" href="port__space_8hpp_source.html#l00102">flow::net_flow::Port_space::S_NUM_SERVICE_PORTS</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a5e0c2b54a5427bc09ecf0dee603ce450">flow::net_flow::error::S_OPTION_CHECK_FAILED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a1975df7ed76c42660cbdc6039d5c70c5">flow::net_flow::error::S_OUT_OF_PORTS</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a2c42b01b60ebe4834e9be3933ce94cb6">flow::net_flow::error::S_PORT_TAKEN</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a8ad7147a3e4e63313c7a5954790cd458">flow::net_flow::error::S_SEQ_NUM_ARITHMETIC_FAILURE</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a891201a96c5838bbb24cc9ed08b47765">flow::net_flow::error::S_SEQ_NUM_IMPLIES_CONNECTION_COLLISION</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ad7b8da59bb61205572fe985c29863e58">flow::net_flow::error::S_STATIC_OPTION_CHANGED</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a35606f4143e15dbe6bc03a543599dec8">flow::net_flow::error::S_USER_CLOSED_ABRUPTLY</a>, <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab92ec3b2b78d74acf0fda0786f601df5">flow::net_flow::error::S_WAIT_INTERRUPTED</a>, and <a class="el" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab835895723a7d71c964b84e0f0b78c3c">flow::net_flow::error::S_WAIT_USER_TIMEOUT</a>.</p>
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1perf_1_1Checkpointing__timer.html b/doc/flow_doc/generated/html_full/classflow_1_1perf_1_1Checkpointing__timer.html
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@@ -438,7 +438,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aa9940d8e87883f9985ba1893
 
 <p class="definition">Definition at line <a class="el" href="checkpt__timer_8cpp_source.html#l00029">29</a> of file <a class="el" href="checkpt__timer_8cpp_source.html">checkpt_timer.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="checkpt__timer_8hpp_source.html#l00532">m_checkpoints</a>, <a class="el" href="checkpt__timer_8hpp_source.html#l00526">m_last_checkpoint_when</a>, <a class="el" href="checkpt__timer_8hpp_source.html#l00437">m_name</a>, <a class="el" href="checkpt__timer_8hpp_source.html#l00517">m_start_when</a>, <a class="el" href="checkpt__timer_8hpp_source.html#l00509">m_which_clocks</a>, <a class="el" href="checkpt__timer_8cpp_source.html#l00241">now()</a>, <a class="el" href="util_2util_8hpp_source.html#l00356">flow::util::ostream_op_string()</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>, and <a class="el" href="classflow_1_1log_1_1Logger.html#ac8a2e7a33fe3fbc0c29ead62ed98c022">flow::log::Logger::should_log()</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="checkpt__timer_8hpp_source.html#l00532">m_checkpoints</a>, <a class="el" href="checkpt__timer_8hpp_source.html#l00526">m_last_checkpoint_when</a>, <a class="el" href="checkpt__timer_8hpp_source.html#l00437">m_name</a>, <a class="el" href="checkpt__timer_8hpp_source.html#l00517">m_start_when</a>, <a class="el" href="checkpt__timer_8hpp_source.html#l00509">m_which_clocks</a>, <a class="el" href="checkpt__timer_8cpp_source.html#l00241">now()</a>, <a class="el" href="util_2util_8hpp_source.html#l00381">flow::util::ostream_op_string()</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>, and <a class="el" href="classflow_1_1log_1_1Logger.html#ac8a2e7a33fe3fbc0c29ead62ed98c022">flow::log::Logger::should_log()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="checkpt__timer_8cpp_source.html#l00372">flow::perf::Checkpointing_timer::Aggregator::create_aggregated_result()</a>.</p>
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1perf_1_1Checkpointing__timer_1_1Aggregator-members.html b/doc/flow_doc/generated/html_full/classflow_1_1perf_1_1Checkpointing__timer_1_1Aggregator-members.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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index 793546bdf..16be1378f 100644
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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index 1eacaa04c..094ed56be 100644
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+++ b/doc/flow_doc/generated/html_full/classflow_1_1util_1_1Linked__hash__map.html
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 <p class="definition">Definition at line <a class="el" href="linked__hash__map_8hpp_source.html#l00761">761</a> of file <a class="el" href="linked__hash__map_8hpp_source.html">linked_hash_map.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05683">flow::net_flow::Node::close_connection_immediately()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05689">flow::net_flow::Node::close_connection_immediately()</a>.</p>
 <div class="dynheader">
 Here is the caller graph for this function:</div>
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@@ -2216,7 +2216,7 @@ <h3>Performance</h3>
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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@@ -77,7 +77,7 @@
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/classflow_1_1util_1_1Rnd__gen__uniform__range__base-members.html b/doc/flow_doc/generated/html_full/classflow_1_1util_1_1Rnd__gen__uniform__range__base-members.html
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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@@ -134,7 +134,7 @@
 <div class="line">  } <span class="comment">// Restored from 125 to 75.</span></div>
 <div class="line">  ...</div>
 <div class="line">} <span class="comment">// Restored from (probably) 75 to (whatever).</span></div>
-<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html">flow::util::Scoped_setter</a></div><div class="ttdoc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to ...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00119">util.hpp:120</a></div></div>
+<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html">flow::util::Scoped_setter</a></div><div class="ttdoc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to ...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00144">util.hpp:145</a></div></div>
 </div><!-- fragment --><p >The object is movable, not copyable (which is similar to <code>unique_ptr</code>) to prevent "double-restore." Related: one can easily return customized auto-setter/restorers:</p>
 <div class="fragment"><div class="line"><span class="keyword">thread_local</span> Widget s_widget;</div>
 <div class="line"><span class="keyword">auto</span> widget_setter_auto(Widget&amp;&amp; widget_moved)</div>
@@ -158,7 +158,7 @@
 <h3>Implementation</h3>
 <p >An alternative implementation, which could even be reduced to just an alias, would have used <code>unique_ptr</code>. However in this case I (ygoldfel) wanted maximum control for perf. The use case originally driving this was the thread-local verbosity override: <a class="el" href="classflow_1_1log_1_1Config.html#ab025990297cc07d51aaec277af203dfe" title="Sets *(this_thread_verbosity_override()) = most_verbose_sev_or_none; and returns an object that shall...">log::Config::this_thread_verbosity_override_auto()</a>. <a class="el" href="namespaceflow_1_1log.html" title="Flow module providing logging functionality.">flow::log</a> is fairly paranoid about performance, in general, although admittedly this particular call isn't necessarily ubiquitous. </p>
 
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+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00144">144</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
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+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00206">206</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00170">flow::util::Scoped_setter&lt; Value &gt;::m_target_or_null</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00195">flow::util::Scoped_setter&lt; Value &gt;::m_target_or_null</a>.</p>
 
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+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00195">flow::util::Scoped_setter&lt; Value &gt;::m_target_or_null</a>.</p>
 
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 <p>Restores <code>*target</code> (from main ctor) to its value at entry to said ctor; or does nothing if <code>*this</code> has been moved-from via the move ctor. </p>
 
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+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00225">225</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
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 <p>If and only if <a class="el" href="classflow_1_1util_1_1Scoped__setter.html#ab36f9981921da6540fc5c308e4c19a9c" title="Target object location; see ctors; if null then this is a moved-from Scoped_setter that intentionally...">m_target_or_null</a> is non-null, this saves <code>*m_target_or_null</code>. Otherwise meaningless. </p>
 
-<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00173">173</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00198">198</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
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 <p>Target object location; see ctors; if null then this is a moved-from <a class="el" href="classflow_1_1util_1_1Scoped__setter.html" title="A simple RAII-pattern class template that, at construction, sets the specified location in memory to ...">Scoped_setter</a> that intentionally no-ops. </p>
 
-<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00170">170</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00195">195</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
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+<p class="reference">Referenced by <a class="el" href="util_2util_8hpp_source.html#l00206">flow::util::Scoped_setter&lt; Value &gt;::Scoped_setter()</a>.</p>
 
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <p class="reference">References <a class="el" href="string__ostream_8hpp_source.html#l00126">m_target_appender_ostream</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="thread__lcl__str__appender_8cpp_source.html#l00107">flow::log::Thread_local_string_appender::appender_ostream()</a>, <a class="el" href="util_2util_8hpp_source.html#l00481">flow::util::buffers_dump_string()</a>, <a class="el" href="util_2util_8hpp_source.html#l00342">flow::util::ostream_op_to_string()</a>, <a class="el" href="thread__lcl__str__appender_8cpp_source.html#l00113">flow::log::Thread_local_string_appender::save_formatting_state_and_restore_prev()</a>, and <a class="el" href="option__set_8hpp_source.html#l01611">flow::cfg::Option_set_base::throw_on_invalid_func()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="thread__lcl__str__appender_8cpp_source.html#l00107">flow::log::Thread_local_string_appender::appender_ostream()</a>, <a class="el" href="util_2util_8hpp_source.html#l00506">flow::util::buffers_dump_string()</a>, <a class="el" href="util_2util_8hpp_source.html#l00367">flow::util::ostream_op_to_string()</a>, <a class="el" href="thread__lcl__str__appender_8cpp_source.html#l00113">flow::log::Thread_local_string_appender::save_formatting_state_and_restore_prev()</a>, and <a class="el" href="option__set_8hpp_source.html#l01611">flow::cfg::Option_set_base::throw_on_invalid_func()</a>.</p>
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 Here is the caller graph for this function:</div>
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-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
 <div class="ttc" id="astructflow_1_1perf_1_1Duration__set_html"><div class="ttname"><a href="structflow_1_1perf_1_1Duration__set.html">flow::perf::Duration_set</a></div><div class="ttdoc">Convenience wrapper around an array&lt;Duration, N&gt;, which stores a duration for each of the N possible ...</div><div class="ttdef"><b>Definition:</b> <a href="clock__type__fwd_8hpp_source.html#l00185">clock_type_fwd.hpp:186</a></div></div>
 <div class="ttc" id="astructflow_1_1perf_1_1Duration__set_html_ae7d89b9e16f45dc59b27092e0496ce4f"><div class="ttname"><a href="structflow_1_1perf_1_1Duration__set.html#ae7d89b9e16f45dc59b27092e0496ce4f">flow::perf::Duration_set::m_values</a></div><div class="ttdeci">std::array&lt; Duration, size_t(Clock_type::S_END_SENTINEL)&gt; m_values</div><div class="ttdoc">The underlying data, directly readable and writable by user. NOT ZERO-INITIALIZED ON CONSTRUCTION (or...</div><div class="ttdef"><b>Definition:</b> <a href="clock__type__fwd_8hpp_source.html#l00188">clock_type_fwd.hpp:188</a></div></div>
 <div class="ttc" id="astructflow_1_1perf_1_1Time__pt__set_html"><div class="ttname"><a href="structflow_1_1perf_1_1Time__pt__set.html">flow::perf::Time_pt_set</a></div><div class="ttdoc">Convenience wrapper around an array&lt;Time_pt, N&gt;, which stores a time point for each of the N possible...</div><div class="ttdef"><b>Definition:</b> <a href="clock__type__fwd_8hpp_source.html#l00195">clock_type_fwd.hpp:196</a></div></div>
@@ -399,7 +399,7 @@
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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@@ -81,7 +81,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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@@ -116,7 +116,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/common_8hpp.html b/doc/flow_doc/generated/html_full/common_8hpp.html
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@@ -156,7 +156,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#abb2f9f3d34f909216637ac16
 
 <p>Macro that is defined if and only if the compiling environment is Linux. </p>
 
-<p class="definition">Definition at line <a class="el" href="common_8hpp_source.html#l00084">84</a> of file <a class="el" href="common_8hpp_source.html">common.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="common_8hpp_source.html#l00089">89</a> of file <a class="el" href="common_8hpp_source.html">common.hpp</a>.</p>
 
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@@ -174,7 +174,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ab38c55048f378ce506da9b59
 
 <p>Macro that is defined if and only if the compiling environment is Mac OS X or higher macOS (not iOS and such!). </p>
 
-<p class="definition">Definition at line <a class="el" href="common_8hpp_source.html#l00087">87</a> of file <a class="el" href="common_8hpp_source.html">common.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="common_8hpp_source.html#l00092">92</a> of file <a class="el" href="common_8hpp_source.html">common.hpp</a>.</p>
 
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@@ -192,14 +192,14 @@ <h2 class="memtitle"><span class="permalink"><a href="#aa97a4a2066a1727fa6791763
 
 <p>Macro that is defined if and only if the compiling environment is Windows. </p>
 
-<p class="definition">Definition at line <a class="el" href="common_8hpp_source.html#l00090">90</a> of file <a class="el" href="common_8hpp_source.html">common.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="common_8hpp_source.html#l00095">95</a> of file <a class="el" href="common_8hpp_source.html">common.hpp</a>.</p>
 
 </div>
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 <!-- start footer part -->
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/common_8hpp_source.html b/doc/flow_doc/generated/html_full/common_8hpp_source.html
index 50385e943..cf80e5bed 100644
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@@ -138,622 +138,627 @@
 <div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span><span class="comment"> *</span></div>
 <div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="comment"> * Note this isn&#39;t academic; as of this writing there&#39;s at least a C++14-requiring constexpr feature in use in one</span></div>
 <div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span><span class="comment"> * of the headers.  So at least C++14 has been required for ages in actual practice.  Later, notched it up to C++17</span></div>
-<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span><span class="comment"> * by similar logic. */</span></div>
-<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="preprocessor">#if (!defined(__cplusplus)) || (__cplusplus &lt; 201703L)</span></div>
-<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="comment">// Would use static_assert(false), but... it&#39;s C++11 and later only.  So.</span></div>
-<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="preprocessor">#  error &quot;To compile a translation unit that `#include`s any flow/ API headers, use C++17 compile mode or later.&quot;</span></div>
-<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="preprocessor">#endif</span></div>
-<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span> </div>
-<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="comment">// Macros.  These (conceptually) belong to the `flow` namespace (hence the prefix for each macro).</span></div>
-<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span> </div>
-<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="preprocessor">#ifdef FLOW_DOXYGEN_ONLY </span><span class="comment">// Compiler ignores; Doxygen sees.</span></div>
-<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="comment"></span> </div>
-<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="comment">/// Macro that is defined if and only if the compiling environment is Linux.</span></div>
-<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"><a class="line" href="common_8hpp.html#abb2f9f3d34f909216637ac16e3321727">   84</a></span><span class="comment"></span><span class="preprocessor">#  define FLOW_OS_LINUX</span></div>
-<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span><span class="comment"></span> </div>
-<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="comment">/// Macro that is defined if and only if the compiling environment is Mac OS X or higher macOS (not iOS and such!).</span></div>
-<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"><a class="line" href="common_8hpp.html#ab38c55048f378ce506da9b5989b36dc5">   87</a></span><span class="comment"></span><span class="preprocessor">#  define FLOW_OS_MAC</span></div>
-<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment"></span> </div>
-<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment">/// Macro that is defined if and only if the compiling environment is Windows.</span></div>
-<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"><a class="line" href="common_8hpp.html#aa97a4a2066a1727fa67917638a569a34">   90</a></span><span class="comment"></span><span class="preprocessor">#  define FLOW_OS_WIN</span></div>
-<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span> </div>
-<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="preprocessor">#else </span><span class="comment">// if !defined(FLOW_DOXYGEN_ONLY)</span></div>
-<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span> </div>
-<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span><span class="comment">// Now the actual definitions compiler sees (Doxygen ignores).</span></div>
-<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span> </div>
-<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment">/* Used this delightful page for this logic:</span></div>
-<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="comment"> *   https://web.archive.org/web/20140625123925/http://nadeausoftware.com/articles/2012/01/c_c_tip_how_use_compiler_predefined_macros_detect_operating_system */</span></div>
-<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="preprocessor">#  ifdef __linux__</span></div>
-<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="preprocessor">#    define FLOW_OS_LINUX</span></div>
-<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="preprocessor">#  elif defined(__APPLE__) &amp;&amp; (TARGET_OS_MAC == 1)</span></div>
-<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="preprocessor">#    define FLOW_OS_MAC</span></div>
-<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="preprocessor">#  elif defined(_WIN32) || defined(_WIN64)</span></div>
-<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span><span class="preprocessor">#    define FLOW_OS_WIN</span></div>
-<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="preprocessor">#  endif</span></div>
-<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span> </div>
-<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="preprocessor">#endif </span><span class="comment">// elif !defined(FLOW_DOXYGEN_ONLY)</span></div>
-<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="comment"></span> </div>
-<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment"> * Catch-all namespace for the Flow project: A collection of various production-quality modules written in modern</span></div>
-<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="comment"> * C++17, originally by ygoldfel.  (The very first version was in Boost-y C++03, back around 2010.  Later, ~2019, it</span></div>
-<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="comment"> * moved to C++14 in style and substance; and in 2022 to C++17 -- a relatively minor upgrade.)</span></div>
-<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment"> * While the modules are orthogonal to each other in terms of functionality</span></div>
-<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment"> * provided, they all share a common set of stylistic conventions and happen to use each other internally; hence</span></div>
-<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment"> * they are distributed together as of this writing.</span></div>
-<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment"> * From the user&#39;s perspective, one should view this namespace as the &quot;root,&quot; meaning it consists of two parts:</span></div>
-<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment"> *   - Sub-namespaces (like flow::log, flow::util, flow::async, flow::net_flow),</span></div>
-<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment"> *     each of which represents a *Flow module* providing certain</span></div>
-<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment"> *     grouped functionality.  Each module is self-contained from the point of view of the user, meaning:</span></div>
-<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment"> *     While the various modules may use each other internally (and hence cannot be easily distributed separately), from</span></div>
-<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment"> *     user&#39;s perspective each one can be directly `include`d/referenced without directly `include`ing/referring to the</span></div>
-<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span><span class="comment"> *     others.  E.g., one can directly reference `namespace log` *and/or* `namespace util` *and/or* `namespace net_flow`</span></div>
-<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment"> *     *and/or* ....  Further documentation can be found in the doc headers for each individual sub-namespace.</span></div>
-<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment"> *   - Symbols directly in `flow`: The absolute most basic, commonly used symbols (such as `uint32_t` or `Error_code`).</span></div>
-<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="comment"> *     There should be only a handful of these, and they are likely to be small.</span></div>
-<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="comment"> *     - In particular this includes `enum class Flow_log_component` which defines the set of possible</span></div>
-<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment"> *       flow::log::Component values logged from within all modules of Flow (again, including flow::util, flow::async,</span></div>
-<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment"> *       flow::net_flow, etc.).  See end of common.hpp.</span></div>
-<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment"> * Reiterating: Non-`namespace` symbols directly inside `namespace flow` are to be only extremely ubiquitous items</span></div>
-<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment"> * such as the basic integer types and the log component `enum`.  Anything beyond that should go into a sub-`namespace`</span></div>
-<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment"> * of `flow`; if it is something miscellaneous then put it into flow::util.</span></div>
-<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="comment"> * Here we summarize topics relevant to all of Flow.  It is recommend one reads this before using any individual module,</span></div>
-<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="comment"> * for topics like file organization and style conventions, topics arguably not of huge practical value right away.</span></div>
-<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment"> * However, all the actual functionality is in the sub-modules, so once you&#39;re ready to actually do stuff, I reiterate:</span></div>
-<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment"> * See the list of sub-namespaces of `flow` and start with the doc header of the one(s) of interest to you.</span></div>
+<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span><span class="comment"> * by similar logic.</span></div>
+<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="comment"> * Update: We continue to target C++17 (by default) in our build -- but now also support (and, outside</span></div>
+<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="comment"> * the source code proper, test) C++20 mode build, albeit without using any C++20-only language or STL features.  It is</span></div>
+<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="comment"> * conceivable that at some point in the future we&#39;ll target C++20 by default (and drop support for C++17 and older).</span></div>
+<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span><span class="comment"> * Naturally at that point we&#39;d begin using C++20 language/STL features when convenient. */</span></div>
+<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="preprocessor">#if (!defined(__cplusplus)) || (__cplusplus &lt; 201703L)</span></div>
+<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><span class="comment">// Would use static_assert(false), but... it&#39;s C++11 and later only.  So.</span></div>
+<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="preprocessor">#  error &quot;To compile a translation unit that `#include`s any flow/ API headers, use C++17 compile mode or later.&quot;</span></div>
+<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="preprocessor">#endif</span></div>
+<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span> </div>
+<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="comment">// Macros.  These (conceptually) belong to the `flow` namespace (hence the prefix for each macro).</span></div>
+<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span> </div>
+<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="preprocessor">#ifdef FLOW_DOXYGEN_ONLY </span><span class="comment">// Compiler ignores; Doxygen sees.</span></div>
+<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="comment"></span> </div>
+<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment">/// Macro that is defined if and only if the compiling environment is Linux.</span></div>
+<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"><a class="line" href="common_8hpp.html#abb2f9f3d34f909216637ac16e3321727">   89</a></span><span class="comment"></span><span class="preprocessor">#  define FLOW_OS_LINUX</span></div>
+<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment"></span> </div>
+<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="comment">/// Macro that is defined if and only if the compiling environment is Mac OS X or higher macOS (not iOS and such!).</span></div>
+<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"><a class="line" href="common_8hpp.html#ab38c55048f378ce506da9b5989b36dc5">   92</a></span><span class="comment"></span><span class="preprocessor">#  define FLOW_OS_MAC</span></div>
+<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="comment"></span> </div>
+<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span><span class="comment">/// Macro that is defined if and only if the compiling environment is Windows.</span></div>
+<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"><a class="line" href="common_8hpp.html#aa97a4a2066a1727fa67917638a569a34">   95</a></span><span class="comment"></span><span class="preprocessor">#  define FLOW_OS_WIN</span></div>
+<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span> </div>
+<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="preprocessor">#else </span><span class="comment">// if !defined(FLOW_DOXYGEN_ONLY)</span></div>
+<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span> </div>
+<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment">// Now the actual definitions compiler sees (Doxygen ignores).</span></div>
+<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span> </div>
+<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment">/* Used this delightful page for this logic:</span></div>
+<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="comment"> *   https://web.archive.org/web/20140625123925/http://nadeausoftware.com/articles/2012/01/c_c_tip_how_use_compiler_predefined_macros_detect_operating_system */</span></div>
+<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span><span class="preprocessor">#  ifdef __linux__</span></div>
+<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="preprocessor">#    define FLOW_OS_LINUX</span></div>
+<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="preprocessor">#  elif defined(__APPLE__) &amp;&amp; (TARGET_OS_MAC == 1)</span></div>
+<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="preprocessor">#    define FLOW_OS_MAC</span></div>
+<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="preprocessor">#  elif defined(_WIN32) || defined(_WIN64)</span></div>
+<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="preprocessor">#    define FLOW_OS_WIN</span></div>
+<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="preprocessor">#  endif</span></div>
+<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span> </div>
+<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="preprocessor">#endif </span><span class="comment">// elif !defined(FLOW_DOXYGEN_ONLY)</span></div>
+<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment"></span> </div>
+<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment"> * Catch-all namespace for the Flow project: A collection of various production-quality modules written in modern</span></div>
+<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment"> * C++17, originally by ygoldfel.  (The very first version was in Boost-y C++03, back around 2010.  Later, ~2019, it</span></div>
+<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment"> * moved to C++14 in style and substance; and in 2022 to C++17 -- a relatively minor upgrade.)</span></div>
+<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment"> * While the modules are orthogonal to each other in terms of functionality</span></div>
+<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment"> * provided, they all share a common set of stylistic conventions and happen to use each other internally; hence</span></div>
+<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment"> * they are distributed together as of this writing.</span></div>
+<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment"> * From the user&#39;s perspective, one should view this namespace as the &quot;root,&quot; meaning it consists of two parts:</span></div>
+<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span><span class="comment"> *   - Sub-namespaces (like flow::log, flow::util, flow::async, flow::net_flow),</span></div>
+<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment"> *     each of which represents a *Flow module* providing certain</span></div>
+<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment"> *     grouped functionality.  Each module is self-contained from the point of view of the user, meaning:</span></div>
+<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="comment"> *     While the various modules may use each other internally (and hence cannot be easily distributed separately), from</span></div>
+<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="comment"> *     user&#39;s perspective each one can be directly `include`d/referenced without directly `include`ing/referring to the</span></div>
+<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment"> *     others.  E.g., one can directly reference `namespace log` *and/or* `namespace util` *and/or* `namespace net_flow`</span></div>
+<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment"> *     *and/or* ....  Further documentation can be found in the doc headers for each individual sub-namespace.</span></div>
+<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment"> *   - Symbols directly in `flow`: The absolute most basic, commonly used symbols (such as `uint32_t` or `Error_code`).</span></div>
+<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment"> *     There should be only a handful of these, and they are likely to be small.</span></div>
+<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment"> *     - In particular this includes `enum class Flow_log_component` which defines the set of possible</span></div>
+<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment"> *       flow::log::Component values logged from within all modules of Flow (again, including flow::util, flow::async,</span></div>
+<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment"> *       flow::net_flow, etc.).  See end of common.hpp.</span></div>
+<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="comment"> * Reiterating: Non-`namespace` symbols directly inside `namespace flow` are to be only extremely ubiquitous items</span></div>
+<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment"> * such as the basic integer types and the log component `enum`.  Anything beyond that should go into a sub-`namespace`</span></div>
+<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment"> * of `flow`; if it is something miscellaneous then put it into flow::util.</span></div>
 <div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment"> * Documentation / Doxygen</span></div>
-<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment"> * -----------------------</span></div>
-<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span><span class="comment"> * All code in the project proper follows a high standard of documentation, almost solely via comments therein</span></div>
-<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="comment"> * (as opposed to ancillary doc files/READMEs/etc.).  Additionally, a subset of comments are Doxygen-targeted,</span></div>
-<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="comment"> * meaning the comment starts with a special character sequence to cause the Doxygen utility to treat that comment</span></div>
-<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="comment"> * as a doc header for a nearby symbol (class, method, etc.).  (If you&#39;re not familiar with Doxygen: It&#39;s like Javadoc</span></div>
-<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="comment"> * but better -- although mostly compatible with Javadoc-targeted comments as well -- not that we care about that.)</span></div>
-<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="comment"> * From the same source code (the entire Flow tree) 2 (two) web docs are generated by Doxygen utility -- depending on</span></div>
-<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span><span class="comment"> * which of the 2 Doxygen configuration files is chosen.  You can determine which web docs you&#39;re reading currently</span></div>
-<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span><span class="comment"> * (if indeed you are doing that, as opposed to reading raw code) via the wording of the title/header in every web page:</span></div>
-<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span><span class="comment"> *   - *Flow project: Full implementation reference*: This scans every header and translation unit file, including</span></div>
-<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span><span class="comment"> *     those in detail/ sub-directories at all levels; and all Doxygen-targeted comments (including this one)</span></div>
-<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span><span class="comment"> *     are fully scanned.  Full browsable source code is included in the output also.  As a result, it&#39;s basically</span></div>
-<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment"> *     an ultra-nice viewer of the entire source code (implementation included), with special emphasis on</span></div>
-<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment"> *     doc headers such as this one.</span></div>
-<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="comment"> *   - *Flow project: Public API*: Only headers are scanned; and all detail/ sub-directories at all levels are ignored.</span></div>
-<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span><span class="comment"> *     Additionally, any text following the (optional) `&quot;@internal&quot;` Doxygen command within each given Doxygen comment</span></div>
-<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="comment"> *     is ignored.  Browsable source code is omitted.  As a result, a clean public API documentation is generated with</span></div>
-<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span><span class="comment"> *     no &quot;fat.&quot;</span></div>
-<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span><span class="comment"> * While an important (achieved) goal is to keep the documentation of the library (internal and external, as noted)</span></div>
-<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment"> * self-contained -- within the source code or auto-generated by taking that source code as input -- nevertheless some</span></div>
-<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="comment"> * satellite documentation is likely to exist; for example to cover such things as the logistical state of the project,</span></div>
-<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span><span class="comment"> * its test harness, perhaps the license, etc.  Look outside the root src/flow directory.</span></div>
+<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment"> * Here we summarize topics relevant to all of Flow.  It is recommend one reads this before using any individual module,</span></div>
+<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment"> * for topics like file organization and style conventions, topics arguably not of huge practical value right away.</span></div>
+<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="comment"> * However, all the actual functionality is in the sub-modules, so once you&#39;re ready to actually do stuff, I reiterate:</span></div>
+<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span><span class="comment"> * See the list of sub-namespaces of `flow` and start with the doc header of the one(s) of interest to you.</span></div>
+<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="comment"> * Documentation / Doxygen</span></div>
+<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="comment"> * -----------------------</span></div>
+<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span><span class="comment"> * All code in the project proper follows a high standard of documentation, almost solely via comments therein</span></div>
+<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="comment"> * (as opposed to ancillary doc files/READMEs/etc.).  Additionally, a subset of comments are Doxygen-targeted,</span></div>
+<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span><span class="comment"> * meaning the comment starts with a special character sequence to cause the Doxygen utility to treat that comment</span></div>
+<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span><span class="comment"> * as a doc header for a nearby symbol (class, method, etc.).  (If you&#39;re not familiar with Doxygen: It&#39;s like Javadoc</span></div>
+<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span><span class="comment"> * but better -- although mostly compatible with Javadoc-targeted comments as well -- not that we care about that.)</span></div>
+<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span><span class="comment"> * From the same source code (the entire Flow tree) 2 (two) web docs are generated by Doxygen utility -- depending on</span></div>
+<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment"> * which of the 2 Doxygen configuration files is chosen.  You can determine which web docs you&#39;re reading currently</span></div>
+<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment"> * (if indeed you are doing that, as opposed to reading raw code) via the wording of the title/header in every web page:</span></div>
+<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="comment"> *   - *Flow project: Full implementation reference*: This scans every header and translation unit file, including</span></div>
+<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span><span class="comment"> *     those in detail/ sub-directories at all levels; and all Doxygen-targeted comments (including this one)</span></div>
+<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="comment"> *     are fully scanned.  Full browsable source code is included in the output also.  As a result, it&#39;s basically</span></div>
+<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span><span class="comment"> *     an ultra-nice viewer of the entire source code (implementation included), with special emphasis on</span></div>
+<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="comment"> *     doc headers such as this one.</span></div>
+<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span><span class="comment"> *   - *Flow project: Public API*: Only headers are scanned; and all detail/ sub-directories at all levels are ignored.</span></div>
+<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment"> *     Additionally, any text following the (optional) `&quot;@internal&quot;` Doxygen command within each given Doxygen comment</span></div>
+<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="comment"> *     is ignored.  Browsable source code is omitted.  As a result, a clean public API documentation is generated with</span></div>
+<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span><span class="comment"> *     no &quot;fat.&quot;</span></div>
 <div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span><span class="comment"> * @todo As of this writing the *exact* nature of where the project will permanently reside (and who will maintain it</span></div>
-<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span><span class="comment"> * vs. use it) is in flux.  Therefore for now I have removed the section covering certain topics and replaced it with</span></div>
-<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span><span class="comment"> * the to-do you&#39;re reading.  This should be undone when things settle down (obviously ensuring the brought-back section</span></div>
-<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span><span class="comment"> * is made accurate).  The topics to cover: `&quot;@author&quot;` (including contact info); GitHub/other address indicating where</span></div>
-<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span><span class="comment"> * to browse the project source; link(s) to the latest auto-generated web docs (if any); a section on the</span></div>
-<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span><span class="comment"> * history of the project; and licensing info (if deemed needed) or pointer to it.  (Reminder: Also update any</span></div>
-<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span><span class="comment"> * similar sections of the historically significant net_flow::Node doc header.)</span></div>
-<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span><span class="comment"> * @todo Since Flow gained its first users beyond the original author, some Flow-adjacent code has been written from</span></div>
-<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span><span class="comment"> * which Flow can benefit, including a potential `io` module/namespace for general networking/local I/O.</span></div>
-<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span><span class="comment"> * (Flow itself continued to be developed, but some features were added</span></div>
-<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span><span class="comment"> * elsewhere for expediency; this is a reminder to factor them out into Flow for the benefit of</span></div>
-<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span><span class="comment"> * all.)  Some features to migrate here might be: boost.asio extensions to UDP receive APIs to obtain receipt time</span></div>
-<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span><span class="comment"> * stamps and destination IP (`recvmsg()` with ancillary data extensions) and to receive multiple datagrams in one</span></div>
-<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span><span class="comment"> * call (`recvmmsg()`); boost.asio-adjacent facility to add custom socket options similarly to how boost.asio does it</span></div>
-<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span><span class="comment"> * internally; boost.asio support for (local) transmission of native socket handles and security data over stream</span></div>
-<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span><span class="comment"> * sockets (`SCM_RIGHTS`, etc.).</span></div>
-<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span><span class="comment"> * Using Flow modules</span></div>
-<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span><span class="comment"> * ------------------</span></div>
-<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span><span class="comment"> * This section discusses usability topics that apply to all Flow modules including hopefully any future ones but</span></div>
-<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span><span class="comment"> * definitely all existing ones as of this writing.</span></div>
-<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span><span class="comment"> * ### Error reporting ###</span></div>
-<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="comment"> * Similarly to boost.asio, all public methods that may return errors can either do so via an</span></div>
-<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span><span class="comment"> * error code or an exception encapsulating that same error code.  If user passes in non-null pointer to a</span></div>
-<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment"> * flow::Error_code variable, the latter is set to success (falsy) or a specific failure (truthy `enum` value).  If</span></div>
-<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment"> * user passes in null pointer, an exception `exc` is thrown only in case of error and will encapsulate that error code</span></div>
-<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span><span class="comment"> * (accessible via `exc.code()`).</span></div>
-<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment"> * For details about error reporting, see doc headers for flow::Error_code (spoiler alert: a mere alias to</span></div>
-<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span><span class="comment"> * `boost::system::error_code`) and `namespace` flow::error.</span></div>
-<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span><span class="comment"> * ### Logging ###</span></div>
-<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="comment"> * The flow::log namespace (see especially log::Logger and the various `FLOW_LOG_...*()` macros in</span></div>
-<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span><span class="comment"> * log/log.hpp) provides a logging facility -- used by Flow modules&#39; often-extensive logging, and equally available</span></div>
-<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span><span class="comment"> * to the Flow user.  Ultimately, you may tweak the log level and then observe the given Flow module&#39;s internal behavior</span></div>
-<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span><span class="comment"> * to whatever level of detail you desire.  Similarly, as the user, you may use this system for your own logging,</span></div>
-<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span><span class="comment"> * even if you use no Flow module other than flow::log itself.  Either way, you can hook up flow::log to log via your</span></div>
-<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span><span class="comment"> * own log output device in arbitrary fashion (e.g., save the log messages in a database, if that&#39;s what you want).</span></div>
-<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span><span class="comment"> * For details about logging, see doc header for `namespace` flow::log.</span></div>
-<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span><span class="comment"> * @internal</span></div>
-<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span><span class="comment"> * Implementation notes</span></div>
-<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span><span class="comment"> * --------------------</span></div>
+<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span><span class="comment"> * While an important (achieved) goal is to keep the documentation of the library (internal and external, as noted)</span></div>
+<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span><span class="comment"> * self-contained -- within the source code or auto-generated by taking that source code as input -- nevertheless some</span></div>
+<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span><span class="comment"> * satellite documentation is likely to exist; for example to cover such things as the logistical state of the project,</span></div>
+<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span><span class="comment"> * its test harness, perhaps the license, etc.  Look outside the root src/flow directory.</span></div>
+<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span><span class="comment"> * @todo As of this writing the *exact* nature of where the project will permanently reside (and who will maintain it</span></div>
+<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span><span class="comment"> * vs. use it) is in flux.  Therefore for now I have removed the section covering certain topics and replaced it with</span></div>
+<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span><span class="comment"> * the to-do you&#39;re reading.  This should be undone when things settle down (obviously ensuring the brought-back section</span></div>
+<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span><span class="comment"> * is made accurate).  The topics to cover: `&quot;@author&quot;` (including contact info); GitHub/other address indicating where</span></div>
+<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span><span class="comment"> * to browse the project source; link(s) to the latest auto-generated web docs (if any); a section on the</span></div>
+<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span><span class="comment"> * history of the project; and licensing info (if deemed needed) or pointer to it.  (Reminder: Also update any</span></div>
+<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span><span class="comment"> * similar sections of the historically significant net_flow::Node doc header.)</span></div>
+<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span><span class="comment"> * @todo Since Flow gained its first users beyond the original author, some Flow-adjacent code has been written from</span></div>
+<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span><span class="comment"> * which Flow can benefit, including a potential `io` module/namespace for general networking/local I/O.</span></div>
+<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span><span class="comment"> * (Flow itself continued to be developed, but some features were added</span></div>
+<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span><span class="comment"> * elsewhere for expediency; this is a reminder to factor them out into Flow for the benefit of</span></div>
+<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span><span class="comment"> * all.)  Some features to migrate here might be: boost.asio extensions to UDP receive APIs to obtain receipt time</span></div>
+<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span><span class="comment"> * stamps and destination IP (`recvmsg()` with ancillary data extensions) and to receive multiple datagrams in one</span></div>
+<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span><span class="comment"> * call (`recvmmsg()`); boost.asio-adjacent facility to add custom socket options similarly to how boost.asio does it</span></div>
+<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span><span class="comment"> * internally; boost.asio support for (local) transmission of native socket handles and security data over stream</span></div>
+<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span><span class="comment"> * sockets (`SCM_RIGHTS`, etc.).</span></div>
+<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span><span class="comment"> * Using Flow modules</span></div>
+<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span><span class="comment"> * ------------------</span></div>
+<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span><span class="comment"> * This section discusses usability topics that apply to all Flow modules including hopefully any future ones but</span></div>
+<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment"> * definitely all existing ones as of this writing.</span></div>
+<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span><span class="comment"> * ### Error reporting ###</span></div>
+<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment"> * Similarly to boost.asio, all public methods that may return errors can either do so via an</span></div>
+<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment"> * error code or an exception encapsulating that same error code.  If user passes in non-null pointer to a</span></div>
+<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span><span class="comment"> * flow::Error_code variable, the latter is set to success (falsy) or a specific failure (truthy `enum` value).  If</span></div>
+<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="comment"> * user passes in null pointer, an exception `exc` is thrown only in case of error and will encapsulate that error code</span></div>
+<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span><span class="comment"> * (accessible via `exc.code()`).</span></div>
+<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span><span class="comment"> * For details about error reporting, see doc headers for flow::Error_code (spoiler alert: a mere alias to</span></div>
+<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span><span class="comment"> * `boost::system::error_code`) and `namespace` flow::error.</span></div>
+<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span><span class="comment"> * ### Logging ###</span></div>
+<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span><span class="comment"> * The flow::log namespace (see especially log::Logger and the various `FLOW_LOG_...*()` macros in</span></div>
+<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span><span class="comment"> * log/log.hpp) provides a logging facility -- used by Flow modules&#39; often-extensive logging, and equally available</span></div>
+<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span><span class="comment"> * to the Flow user.  Ultimately, you may tweak the log level and then observe the given Flow module&#39;s internal behavior</span></div>
+<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span><span class="comment"> * to whatever level of detail you desire.  Similarly, as the user, you may use this system for your own logging,</span></div>
+<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span><span class="comment"> * even if you use no Flow module other than flow::log itself.  Either way, you can hook up flow::log to log via your</span></div>
+<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span><span class="comment"> * own log output device in arbitrary fashion (e.g., save the log messages in a database, if that&#39;s what you want).</span></div>
+<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span><span class="comment"> * For details about logging, see doc header for `namespace` flow::log.</span></div>
 <div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span><span class="comment"> * There is a high standard of consistency and style, as well as documentation, in Flow.  Before making changes to</span></div>
-<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span><span class="comment"> * the code, you must read doc-coding_style.cpp.</span></div>
-<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span><span class="comment"> * ### Source file tree organization ###</span></div>
-<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span><span class="comment"> * See doc-coding_style.cpp which covers this topic.</span></div>
-<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span><span class="comment"> * ### Libraries used; Boost ###</span></div>
-<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span><span class="comment"> * We use STL and several Boost libraries (notably boost.asio) extensively.</span></div>
-<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span><span class="comment"> * See doc-coding_style.cpp which covers this topic.</span></div>
-<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span><span class="comment"> * ### Exceptions ###</span></div>
-<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span><span class="comment"> * For reasons of speed (hearsay or reputational though they may be) we avoid exception-throwing</span></div>
-<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span><span class="comment"> * boost.asio routines inside the modules&#39; implementations, even though using them would make the code a bit simpler</span></div>
-<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span><span class="comment"> * in many areas.  Similarly, we avoid throwing our own exceptions only to catch them higher in the back-trace.</span></div>
-<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span><span class="comment"> * In both cases, we typically use error codes/return values.  These are not absolute/hard rules, as exceptions may be</span></div>
-<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span><span class="comment"> * used where minuscule speed improvements are immaterial (like the initialization and shutdown of a long-lived object</span></div>
-<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span><span class="comment"> * such as net_flow::Node).</span></div>
-<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span><span class="comment"> * After a recent look at performance implications of exceptions, the following is the basic conclusion: Exceptions have</span></div>
-<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span><span class="comment"> * no processor cycle cost, unless actually thrown, in which case the perf cost can be non-trivial.  Since we consider</span></div>
-<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span><span class="comment"> * internal performance of paramount importance, we generally avoid throwing exceptions -- only to catch them</span></div>
-<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span><span class="comment"> * internally -- as noted in the preceding paragraph.  Arguably such situations are rare anyway, so using an exception</span></div>
-<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span><span class="comment"> * internally wouldn&#39;t actually slow anything down, but we haven&#39;t performed a code audit to verify that stipulation;</span></div>
-<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span><span class="comment"> * and in the meantime the consistent avoidance of using internally caught exceptions has proved to be a very reasonable</span></div>
-<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span><span class="comment"> * policy.  (For some modules this may be arguably mostly moot: Consider flow::net_flow specifically: Since --</span></div>
-<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span><span class="comment"> * internally -- mostly boost.asio `async_*()` methods are used, and those</span></div>
-<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span><span class="comment"> * by definition report errors as codes passed into async handler functions; whether to use an exception or not is</span></div>
-<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="comment"> * an ill-formed question in all such situations.)  We recommend this practice continue, until there&#39;s a specific reason</span></div>
-<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span><span class="comment"> * to reconsider.</span></div>
-<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span><span class="comment"> * See doc-coding_style.cpp for more discussion of error handling and exceptions.</span></div>
-<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span><span class="comment"> * Code style guidelines</span></div>
-<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span><span class="comment"> * ---------------------</span></div>
+<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span><span class="comment"> * @internal</span></div>
+<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span><span class="comment"> * Implementation notes</span></div>
+<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span><span class="comment"> * --------------------</span></div>
+<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span><span class="comment"> * There is a high standard of consistency and style, as well as documentation, in Flow.  Before making changes to</span></div>
+<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span><span class="comment"> * the code, you must read doc-coding_style.cpp.</span></div>
+<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span><span class="comment"> * ### Source file tree organization ###</span></div>
+<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span><span class="comment"> * See doc-coding_style.cpp which covers this topic.</span></div>
+<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span><span class="comment"> * ### Libraries used; Boost ###</span></div>
+<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span><span class="comment"> * We use STL and several Boost libraries (notably boost.asio) extensively.</span></div>
+<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span><span class="comment"> * See doc-coding_style.cpp which covers this topic.</span></div>
+<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span><span class="comment"> * ### Exceptions ###</span></div>
+<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span><span class="comment"> * For reasons of speed (hearsay or reputational though they may be) we avoid exception-throwing</span></div>
+<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span><span class="comment"> * boost.asio routines inside the modules&#39; implementations, even though using them would make the code a bit simpler</span></div>
+<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span><span class="comment"> * in many areas.  Similarly, we avoid throwing our own exceptions only to catch them higher in the back-trace.</span></div>
+<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span><span class="comment"> * In both cases, we typically use error codes/return values.  These are not absolute/hard rules, as exceptions may be</span></div>
+<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span><span class="comment"> * used where minuscule speed improvements are immaterial (like the initialization and shutdown of a long-lived object</span></div>
+<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span><span class="comment"> * such as net_flow::Node).</span></div>
+<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span><span class="comment"> * After a recent look at performance implications of exceptions, the following is the basic conclusion: Exceptions have</span></div>
+<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span><span class="comment"> * no processor cycle cost, unless actually thrown, in which case the perf cost can be non-trivial.  Since we consider</span></div>
+<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span><span class="comment"> * internal performance of paramount importance, we generally avoid throwing exceptions -- only to catch them</span></div>
+<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span><span class="comment"> * internally -- as noted in the preceding paragraph.  Arguably such situations are rare anyway, so using an exception</span></div>
+<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="comment"> * internally wouldn&#39;t actually slow anything down, but we haven&#39;t performed a code audit to verify that stipulation;</span></div>
+<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span><span class="comment"> * and in the meantime the consistent avoidance of using internally caught exceptions has proved to be a very reasonable</span></div>
+<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="comment"> * policy.  (For some modules this may be arguably mostly moot: Consider flow::net_flow specifically: Since --</span></div>
+<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span><span class="comment"> * internally -- mostly boost.asio `async_*()` methods are used, and those</span></div>
+<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span><span class="comment"> * by definition report errors as codes passed into async handler functions; whether to use an exception or not is</span></div>
+<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span><span class="comment"> * an ill-formed question in all such situations.)  We recommend this practice continue, until there&#39;s a specific reason</span></div>
+<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span><span class="comment"> * to reconsider.</span></div>
 <div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span><span class="comment"> * ### General coding style requirements ###</span></div>
-<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span><span class="comment"> * The formal guidelines are in doc-coding_style.cpp; read that file please.</span></div>
-<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span><span class="comment"> * ### Documentation guidelines ###</span></div>
-<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span><span class="comment"> * The standard for documentation of Flow modules is that someone reading the source code, and nothing else, would</span></div>
-<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span><span class="comment"> * be able to understand that code (modulo having the intellectual sophistication/experience w/r/t the subject</span></div>
-<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span><span class="comment"> * matter, of course).  Simple but quite a task given how much code there is and the complexity.  We also</span></div>
-<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><span class="comment"> * produce Doxygen output (2 web pages, as of this writing) by running the code through Doxygen.</span></div>
-<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="comment"> * @see More on the technicalities of how we run Doxygen, and the philosophy behind all of that, can be found</span></div>
-<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span><span class="comment"> * in a `doc/` or similar directory outside src/flow.  It&#39;s rare something pertinent to the source code</span></div>
-<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span><span class="comment"> * is not IN the source code (i.e., right here somewhere), but the README explains why that rare choice is</span></div>
-<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span><span class="comment"> * made (among many more practical/interesting things).  This is worth reading if you&#39;ll be contributing to the</span></div>
-<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span><span class="comment"> * code.</span></div>
-<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span><span class="comment"> * The actual guidelines are, as above, in doc-coding_style.cpp; read that file please.</span></div>
-<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span><span class="comment"> * @todo Possibly document exceptions thrown explicitly via the Doxygen keyword meant for this purpose: `&quot;@throws&quot;`.</span></div>
-<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span><span class="comment"> * Currently when we document explicitly throwing an exception, it is ALWAYS a flow::error::Runtime_error</span></div>
-<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span><span class="comment"> * encapsulating a flow::Error_code (which is an `int`-like error code).  This is very explicitly documented,</span></div>
-<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span><span class="comment"> * but technically Doxygen has a keyword which will generate a special little readout for the exception</span></div>
-<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span><span class="comment"> * (similarly as for each parameter, etc.).  We don&#39;t use that keyword.  We probably should, though this</span></div>
-<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span><span class="comment"> * isn&#39;t totally cut-and-dried.  Consider that we already document the exception on the `err_code` parameter</span></div>
-<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span><span class="comment"> * in every case; so no information would really be gained (only arguably nicer formatting).  On the other hand,</span></div>
-<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span><span class="comment"> * the code would be somewhat more verbose (and boiler-platey, since each already boiler-platey `err_code`</span></div>
-<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span><span class="comment"> * comment snippet would essentially grow in size).  Furthermore, if we document this explicit exception, one might</span></div>
-<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span><span class="comment"> * say it behooves us to now document all the other possible sources of exceptions such as `std::bad_alloc` when</span></div>
-<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span><span class="comment"> * running out of heap memory.  Perhaps then we have to talk about constructor-throwing-exception behavior and</span></div>
-<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span><span class="comment"> * other C++ technicalities to do with exceptions.  Do we really want to enter that land?  I think maybe not;</span></div>
-<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span><span class="comment"> * consider just leaving it alone.  Though, maybe I&#39;m over-dramatizing the impact of adding a `&quot;@throws&quot;`</span></div>
-<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span><span class="comment"> * section on our various flow::error::Runtime_error-throwing methods.  Well, it&#39;s a to-do; decide later.</span></div>
-<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span><span class="comment"> * To-dos and future features</span></div>
-<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span><span class="comment"> * --------------------------</span></div>
-<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span><span class="comment"> * @todo The comments (as of this writing, all written by me, ygoldfel) in this library could use an edit to make</span></div>
-<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span><span class="comment"> * them briefer.  (I&#39;ve found even a self-edit by me, with that express purpose, often does wonders.)  Background:</span></div>
-<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span><span class="comment"> * I write very extensive comments.  I am quite convinced this is superior (far superior even) to next-to-no comments;</span></div>
-<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span><span class="comment"> * and to the average amount of comments one tends to see in production code.  *That said*, the top code review</span></div>
-<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span><span class="comment"> * feedback I receive (not here specifically but in general) is that my comments tend to be too &quot;discursive&quot; (consisting</span></div>
-<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span><span class="comment"> * of discourse) and/or at times unnecessarily in-depth.  Discursive = as if I am talking to the reader (many prefer</span></div>
-<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span><span class="comment"> * a terser, more formal style).  Too in-depth = tends to go into history, related issues, future work, etc.</span></div>
-<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span><span class="comment"> * (these elements can remain but can be cut down significant without losing much substance).</span></div>
-<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span><span class="comment"> * In other words, there should be a happy middle in terms of comment volume, and this can</span></div>
-<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span><span class="comment"> * be achieved by a comment edit run by Yuri or someone else (if reviewed by Yuri).  To be clear, I believe this middle</span></div>
-<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span><span class="comment"> * ground is to be closer to the status quo than to the average amount of comments in other projects.</span></div>
-<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span><span class="comment"> * @todo Be more specific (cite date) when writing &quot;as of this writing.&quot;</span></div>
-<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span><span class="comment"> * I use a rhetorical trick when commenting the state of something that may not continue to be the case.</span></div>
-<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span><span class="comment"> * Though I do avoid writing such things, often it is necessary; in that case I usually write &quot;as of this writing&quot; or</span></div>
-<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span><span class="comment"> * something very similarly worded.  That&#39;s fine and essentially the best one can do.  It means technically the</span></div>
-<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span><span class="comment"> * statement won&#39;t become false, even if the &quot;sub-statement&quot; (the thing that was true when written) does become false.</span></div>
-<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span><span class="comment"> * However, obviously, to the reader of the comment at that later time, that&#39;s little consolation: they&#39;re still reading</span></div>
-<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span><span class="comment"> * a possibly false statement and will want to know what the situation is THEN, or &quot;as of the reading,&quot; to to speak.</span></div>
-<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span><span class="comment"> * In order to at least try to be helpful, in those cases a date (numeric month/year -- like 4/2017 -- should be</span></div>
-<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span><span class="comment"> * sufficient in most cases) should be supplied.  The to-do is to convert all &quot;as of this writing&quot; instances -- and</span></div>
-<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span><span class="comment"> * to always add a date when writing new instances of &quot;as of this writing.&quot;  The to-do can be removed once the</span></div>
-<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span><span class="comment"> * conversion is completed.  Example: this to-do has not been completed as of this writing (11/2017).</span></div>
-<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span><span class="comment"> * (Side note: possibly goes without saying, but one is free to explain to an arbitrary degree of detail why something</span></div>
-<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span><span class="comment"> * is true as of that writing, and how/why/when it might change.  This to-do covers those cases where no such</span></div>
-<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span><span class="comment"> * explanation is written.  It would be impractically verbose to get into speculative detail for every</span></div>
-<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span><span class="comment"> * as-of-this-writing instance; so at least a date should thus be inserted.)</span></div>
-<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span><span class="comment"> * @todo There are some boost.thread &quot;interruption points&quot; throughout the code, so we should</span></div>
-<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span><span class="comment"> * investigate whether we must catch `boost::thread_interrupted` in those spots, or what...?</span></div>
-<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span><span class="comment"> * @todo Inline things:  Or just use `gcc -O3` (and non-`gcc` equivalents) for prettier/faster-to-compile</span></div>
-<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span><span class="comment"> * code?  The latter is definitely tempting if it works sufficiently well.  So far we&#39;ve been using</span></div>
-<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span><span class="comment"> * `gcc -O3` and equivalents, and it seems to be working well (turning off inlining results in huge</span></div>
-<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span><span class="comment"> * performance losses).  Still, I am not sure if it would be better to explicitly `inline` functions</span></div>
-<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span><span class="comment"> * instead.  Not having to do so definitely simplifies the code, so it is my great hope that the answer is</span></div>
-<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span><span class="comment"> * no, and we can keep using `gcc -O3` and equivalents.  In that case delete this paragraph.</span></div>
-<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span><span class="comment"> * (To be clear: `gcc -O3` means that it ignores `inline` keyword and anything similar, including inlined</span></div>
-<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span><span class="comment"> * method bodies inside `class {}` and `struct {}`.  Instead it determines what to inline based on its own</span></div>
-<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span><span class="comment"> * ideas on what will generate the fastest code (with reasonable code size).  `gcc -O2`, on the other</span></div>
-<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span><span class="comment"> * hand, will mostly inline things explicitly declared as such in code (again, via `inline` or inlining inside</span></div>
-<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span><span class="comment"> * class bodies or other techniques).)  Update: Now using clang (not gcc) with maximum auto-inlining AND FLTO</span></div>
-<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span><span class="comment"> * (link-time optimization will allow inlining across object file boundaries) in at least some platforms.</span></div>
-<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span><span class="comment"> * This should be close to as good as possible.  Update: gcc auto-inlining+FLTO also works.</span></div>
-<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span><span class="comment"> * @todo One space after period, not two:</span></div>
-<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span><span class="comment"> * For some reason in this project I&#39;ve been following the convention -- in comments and (I think) log</span></div>
-<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span><span class="comment"> * messages -- of two spaces after a sentence-ending punctuator (usually period) before the next sentence&#39;s</span></div>
-<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span><span class="comment"> * first character.  I now regret trying this annoying convention.  Go back to one space. (For the record,</span></div>
-<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span><span class="comment"> * it does look sort of nice, but that&#39;s a matter of opinion, and single space looks fine too... AND doesn&#39;t</span></div>
-<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span><span class="comment"> * confuse various editors&#39; auto-formatting facilityies, among other problem.)</span></div>
-<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span><span class="comment"> * @todo We use `0` instead of `NULL` or `nullptr` when needing a null pointer; perhaps we should use the latter.</span></div>
-<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span><span class="comment"> * `NULL` is an anachronism from C, so we shouldn&#39;t use it.  `nullptr` is at least no worse than `0`,</span></div>
-<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span><span class="comment"> * however, other than being less concise.  However, the main reason it exists --</span></div>
-<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span><span class="comment"> * to avoid ambiguities in function overloading (e.g., when something could</span></div>
-<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span><span class="comment"> * take either an `int` or a `char*`, `nullptr` would resolve to the latter, while `0` probably unintentionally</span></div>
-<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span><span class="comment"> * to the former) -- is not a situation our style ever invokes, to my knowledge, so using `nullptr` would not</span></div>
-<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span><span class="comment"> * solve any actual problems.  However, it could be argued that using it more readily calls attention to the use</span></div>
-<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span><span class="comment"> * of a pointer, as opposed to an integer, in the particular context at play.  So it&#39;s something to consider</span></div>
-<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span><span class="comment"> * (but, no doubt, the conversion process would be laborious, as there&#39;s no simple search-replace that would</span></div>
-<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span><span class="comment"> * work).</span></div>
-<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span><span class="comment"> * @todo `= default` for copy constructors and copy operators is now used in a few places; consider spreading</span></div>
-<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span><span class="comment"> * this C++11 feature everywhere it&#39;s being done implicitly due to C++03 rules (good documentation practices suggest</span></div>
-<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span><span class="comment"> * declaring them explicitly but of course leave the implementation to the compiler default, gaining best of both</span></div>
-<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span><span class="comment"> * worlds -- proper class API docs yet maintenance-friendly default body).</span></div>
+<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span><span class="comment"> * See doc-coding_style.cpp for more discussion of error handling and exceptions.</span></div>
+<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span><span class="comment"> * Code style guidelines</span></div>
+<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span><span class="comment"> * ---------------------</span></div>
+<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span><span class="comment"> * ### General coding style requirements ###</span></div>
+<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span><span class="comment"> * The formal guidelines are in doc-coding_style.cpp; read that file please.</span></div>
+<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span><span class="comment"> * ### Documentation guidelines ###</span></div>
+<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="comment"> * The standard for documentation of Flow modules is that someone reading the source code, and nothing else, would</span></div>
+<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span><span class="comment"> * be able to understand that code (modulo having the intellectual sophistication/experience w/r/t the subject</span></div>
+<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span><span class="comment"> * matter, of course).  Simple but quite a task given how much code there is and the complexity.  We also</span></div>
+<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span><span class="comment"> * produce Doxygen output (2 web pages, as of this writing) by running the code through Doxygen.</span></div>
+<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span><span class="comment"> * @see More on the technicalities of how we run Doxygen, and the philosophy behind all of that, can be found</span></div>
+<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span><span class="comment"> * in a `doc/` or similar directory outside src/flow.  It&#39;s rare something pertinent to the source code</span></div>
+<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span><span class="comment"> * is not IN the source code (i.e., right here somewhere), but the README explains why that rare choice is</span></div>
+<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span><span class="comment"> * made (among many more practical/interesting things).  This is worth reading if you&#39;ll be contributing to the</span></div>
+<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span><span class="comment"> * code.</span></div>
+<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span><span class="comment"> * The actual guidelines are, as above, in doc-coding_style.cpp; read that file please.</span></div>
+<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span><span class="comment"> * @todo Possibly document exceptions thrown explicitly via the Doxygen keyword meant for this purpose: `&quot;@throws&quot;`.</span></div>
+<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span><span class="comment"> * Currently when we document explicitly throwing an exception, it is ALWAYS a flow::error::Runtime_error</span></div>
+<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span><span class="comment"> * encapsulating a flow::Error_code (which is an `int`-like error code).  This is very explicitly documented,</span></div>
+<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span><span class="comment"> * but technically Doxygen has a keyword which will generate a special little readout for the exception</span></div>
+<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span><span class="comment"> * (similarly as for each parameter, etc.).  We don&#39;t use that keyword.  We probably should, though this</span></div>
+<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span><span class="comment"> * isn&#39;t totally cut-and-dried.  Consider that we already document the exception on the `err_code` parameter</span></div>
+<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span><span class="comment"> * in every case; so no information would really be gained (only arguably nicer formatting).  On the other hand,</span></div>
+<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span><span class="comment"> * the code would be somewhat more verbose (and boiler-platey, since each already boiler-platey `err_code`</span></div>
+<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span><span class="comment"> * comment snippet would essentially grow in size).  Furthermore, if we document this explicit exception, one might</span></div>
+<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span><span class="comment"> * say it behooves us to now document all the other possible sources of exceptions such as `std::bad_alloc` when</span></div>
+<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span><span class="comment"> * running out of heap memory.  Perhaps then we have to talk about constructor-throwing-exception behavior and</span></div>
+<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span><span class="comment"> * other C++ technicalities to do with exceptions.  Do we really want to enter that land?  I think maybe not;</span></div>
+<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span><span class="comment"> * consider just leaving it alone.  Though, maybe I&#39;m over-dramatizing the impact of adding a `&quot;@throws&quot;`</span></div>
+<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span><span class="comment"> * section on our various flow::error::Runtime_error-throwing methods.  Well, it&#39;s a to-do; decide later.</span></div>
+<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span><span class="comment"> * To-dos and future features</span></div>
+<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span><span class="comment"> * --------------------------</span></div>
+<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span><span class="comment"> * @todo The comments (as of this writing, all written by me, ygoldfel) in this library could use an edit to make</span></div>
+<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span><span class="comment"> * them briefer.  (I&#39;ve found even a self-edit by me, with that express purpose, often does wonders.)  Background:</span></div>
+<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span><span class="comment"> * I write very extensive comments.  I am quite convinced this is superior (far superior even) to next-to-no comments;</span></div>
+<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span><span class="comment"> * and to the average amount of comments one tends to see in production code.  *That said*, the top code review</span></div>
+<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span><span class="comment"> * feedback I receive (not here specifically but in general) is that my comments tend to be too &quot;discursive&quot; (consisting</span></div>
+<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span><span class="comment"> * of discourse) and/or at times unnecessarily in-depth.  Discursive = as if I am talking to the reader (many prefer</span></div>
+<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span><span class="comment"> * a terser, more formal style).  Too in-depth = tends to go into history, related issues, future work, etc.</span></div>
+<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span><span class="comment"> * (these elements can remain but can be cut down significant without losing much substance).</span></div>
+<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span><span class="comment"> * In other words, there should be a happy middle in terms of comment volume, and this can</span></div>
+<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span><span class="comment"> * be achieved by a comment edit run by Yuri or someone else (if reviewed by Yuri).  To be clear, I believe this middle</span></div>
+<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span><span class="comment"> * ground is to be closer to the status quo than to the average amount of comments in other projects.</span></div>
+<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span><span class="comment"> * @todo Be more specific (cite date) when writing &quot;as of this writing.&quot;</span></div>
+<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span><span class="comment"> * I use a rhetorical trick when commenting the state of something that may not continue to be the case.</span></div>
+<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span><span class="comment"> * Though I do avoid writing such things, often it is necessary; in that case I usually write &quot;as of this writing&quot; or</span></div>
+<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span><span class="comment"> * something very similarly worded.  That&#39;s fine and essentially the best one can do.  It means technically the</span></div>
+<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span><span class="comment"> * statement won&#39;t become false, even if the &quot;sub-statement&quot; (the thing that was true when written) does become false.</span></div>
+<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span><span class="comment"> * However, obviously, to the reader of the comment at that later time, that&#39;s little consolation: they&#39;re still reading</span></div>
+<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span><span class="comment"> * a possibly false statement and will want to know what the situation is THEN, or &quot;as of the reading,&quot; to to speak.</span></div>
+<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span><span class="comment"> * In order to at least try to be helpful, in those cases a date (numeric month/year -- like 4/2017 -- should be</span></div>
+<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span><span class="comment"> * sufficient in most cases) should be supplied.  The to-do is to convert all &quot;as of this writing&quot; instances -- and</span></div>
+<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span><span class="comment"> * to always add a date when writing new instances of &quot;as of this writing.&quot;  The to-do can be removed once the</span></div>
+<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span><span class="comment"> * conversion is completed.  Example: this to-do has not been completed as of this writing (11/2017).</span></div>
+<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span><span class="comment"> * (Side note: possibly goes without saying, but one is free to explain to an arbitrary degree of detail why something</span></div>
+<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span><span class="comment"> * is true as of that writing, and how/why/when it might change.  This to-do covers those cases where no such</span></div>
+<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span><span class="comment"> * explanation is written.  It would be impractically verbose to get into speculative detail for every</span></div>
+<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span><span class="comment"> * as-of-this-writing instance; so at least a date should thus be inserted.)</span></div>
+<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span><span class="comment"> * @todo There are some boost.thread &quot;interruption points&quot; throughout the code, so we should</span></div>
+<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span><span class="comment"> * investigate whether we must catch `boost::thread_interrupted` in those spots, or what...?</span></div>
+<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span><span class="comment"> * @todo Inline things:  Or just use `gcc -O3` (and non-`gcc` equivalents) for prettier/faster-to-compile</span></div>
+<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span><span class="comment"> * code?  The latter is definitely tempting if it works sufficiently well.  So far we&#39;ve been using</span></div>
+<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span><span class="comment"> * `gcc -O3` and equivalents, and it seems to be working well (turning off inlining results in huge</span></div>
+<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span><span class="comment"> * performance losses).  Still, I am not sure if it would be better to explicitly `inline` functions</span></div>
+<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span><span class="comment"> * instead.  Not having to do so definitely simplifies the code, so it is my great hope that the answer is</span></div>
+<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span><span class="comment"> * no, and we can keep using `gcc -O3` and equivalents.  In that case delete this paragraph.</span></div>
+<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span><span class="comment"> * (To be clear: `gcc -O3` means that it ignores `inline` keyword and anything similar, including inlined</span></div>
+<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span><span class="comment"> * method bodies inside `class {}` and `struct {}`.  Instead it determines what to inline based on its own</span></div>
+<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span><span class="comment"> * ideas on what will generate the fastest code (with reasonable code size).  `gcc -O2`, on the other</span></div>
+<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span><span class="comment"> * hand, will mostly inline things explicitly declared as such in code (again, via `inline` or inlining inside</span></div>
+<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span><span class="comment"> * class bodies or other techniques).)  Update: Now using clang (not gcc) with maximum auto-inlining AND FLTO</span></div>
+<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span><span class="comment"> * (link-time optimization will allow inlining across object file boundaries) in at least some platforms.</span></div>
+<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span><span class="comment"> * This should be close to as good as possible.  Update: gcc auto-inlining+FLTO also works.</span></div>
+<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span><span class="comment"> * @todo One space after period, not two:</span></div>
+<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span><span class="comment"> * For some reason in this project I&#39;ve been following the convention -- in comments and (I think) log</span></div>
+<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span><span class="comment"> * messages -- of two spaces after a sentence-ending punctuator (usually period) before the next sentence&#39;s</span></div>
+<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span><span class="comment"> * first character.  I now regret trying this annoying convention.  Go back to one space. (For the record,</span></div>
+<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span><span class="comment"> * it does look sort of nice, but that&#39;s a matter of opinion, and single space looks fine too... AND doesn&#39;t</span></div>
+<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span><span class="comment"> * confuse various editors&#39; auto-formatting facilityies, among other problem.)</span></div>
+<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span><span class="comment"> * @todo We use `0` instead of `NULL` or `nullptr` when needing a null pointer; perhaps we should use the latter.</span></div>
+<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span><span class="comment"> * `NULL` is an anachronism from C, so we shouldn&#39;t use it.  `nullptr` is at least no worse than `0`,</span></div>
+<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span><span class="comment"> * however, other than being less concise.  However, the main reason it exists --</span></div>
+<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span><span class="comment"> * to avoid ambiguities in function overloading (e.g., when something could</span></div>
+<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span><span class="comment"> * take either an `int` or a `char*`, `nullptr` would resolve to the latter, while `0` probably unintentionally</span></div>
+<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span><span class="comment"> * to the former) -- is not a situation our style ever invokes, to my knowledge, so using `nullptr` would not</span></div>
+<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span><span class="comment"> * solve any actual problems.  However, it could be argued that using it more readily calls attention to the use</span></div>
+<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span><span class="comment"> * of a pointer, as opposed to an integer, in the particular context at play.  So it&#39;s something to consider</span></div>
+<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span><span class="comment"> * (but, no doubt, the conversion process would be laborious, as there&#39;s no simple search-replace that would</span></div>
+<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span><span class="comment"> * work).</span></div>
 <div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span><span class="comment"> * @todo Consider PIMPL and related topics.  Recommend scouring Boost docs, particularly for the smart pointer library,</span></div>
-<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span><span class="comment"> * which discuss how to potentially use smart pointers for easy PIMPLing.  In general, research the state of the art</span></div>
-<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span><span class="comment"> * on the topic of library interface vs. implementation/hiding.</span></div>
-<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span><span class="comment"> * @todo `std::string_view` is a way to pass things around similarly to `const std::string&amp;` without requiring</span></div>
-<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span><span class="comment"> * that a `string` be created just for that purpose; it has a highly similar API but can be constructed from any</span></div>
-<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span><span class="comment"> * character sequence in memory and internally stores nothing more than a pointer and length; we should use it wherever</span></div>
-<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span><span class="comment"> * possible (within reason) instead of `const std::string&amp;`.  Much code now uses `String_view`; the remaining to-do</span></div>
-<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span><span class="comment"> * is: scour the rest of the code for possible `const string&amp;`s to convert and indeed convert those to</span></div>
-<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span><span class="comment"> * util::String_view.</span></div>
-<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span><span class="comment"> * @todo Return-by-copy binary operators of the form `T operatorBLAH(const T&amp; x1, const Some_type&amp; x2)` should be</span></div>
-<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span><span class="comment"> * written as free functions instead of `T` members.  I don&#39;t recall at this point why, but this tends to be recommended</span></div>
-<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span><span class="comment"> * and done in STL and Boost.  Maybe check the Meyer Effective C++ book on the theory; and if it makes sense find all</span></div>
-<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span><span class="comment"> * such operators written as members and change them to be free functions.  Should this be avoided if it requires</span></div>
-<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span><span class="comment"> * `friend` though?  Lastly, for Doxygen, use the `relatesalso T` command to link the free function to the class `T`</span></div>
-<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span><span class="comment"> * in the documentation.</span></div>
-<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span><span class="comment"> * @todo In many (most) cases we pass `shared_ptr`s (and their aliases) by value when it would be more performant to</span></div>
-<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span><span class="comment"> * do so by `const` reference; at times possibly better to pass by raw pointer.  Scott Meyer/Herb Sutter have opined</span></div>
-<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span><span class="comment"> * on this to basically indicate that (1) it is often best to use a raw pointer, unless actual copying/ownership status</span></div>
-<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span><span class="comment"> * is expected; but failing that (2) it is often best to use a `const&amp;` when safe; and failing that passing by</span></div>
-<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span><span class="comment"> * value is fine.  This need not be a dogmatic change, but we should be more mindful than simply always passing by</span></div>
-<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span><span class="comment"> * value.  When searching for instances to potentially change, check for `shared_ptr`, `Ptr`, and `_ptr` tokens.</span></div>
-<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceflow.html">flow</a></div>
-<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span>{</div>
-<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span> </div>
-<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span><span class="comment">// Types.  They&#39;re outside of `namespace ::flow::util` for brevity due to their frequent use.</span></div>
-<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span> </div>
-<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span><span class="comment">// Integer short-hands and specific-bit-width types.</span></div>
-<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span><span class="comment"></span> </div>
-<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span><span class="comment">/// Byte.  Best way to represent a byte of binary data.  This is 8 bits on all modern systems.</span></div>
-<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"><a class="line" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">  386</a></span><span class="comment"></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> = <span class="keywordtype">unsigned</span> char;<span class="comment"></span></div>
-<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span><span class="comment">/// Signed byte.  Prefer to use `uint8_t` when representing binary data.  This is 8 bits on all modern systems.</span></div>
-<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"><a class="line" href="namespaceflow.html#a96b8a241b21c907e96cb91f4bf868446">  388</a></span><span class="comment"></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow.html#a96b8a241b21c907e96cb91f4bf868446">int8_t</a> = <span class="keywordtype">signed</span> char;</div>
-<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span> </div>
-<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span><span class="comment">// Time-related short-hands.</span></div>
-<div class="line"><a id="l00391" name="l00391"></a><span class="lineno">  391</span><span class="comment"></span> </div>
-<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span><span class="comment"> * Clock used for delicate time measurements, such that the `now()` method gets the current time</span></div>
-<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span><span class="comment"> * relative to some unknown but constant epoch (reference point).  Used to measure durations of</span></div>
-<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span><span class="comment"> * things.  It has the following properties:</span></div>
-<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span><span class="comment"> *   - Steady: time cannot go backwards (e.g., via user time change, NTP); time values increment at</span></div>
-<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span><span class="comment"> *     a rate proportional to real time (no leap seconds for example).</span></div>
-<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span><span class="comment"> *   - High-resolution: the increments of time at which the clock runs are as small as supported</span></div>
-<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span><span class="comment"> *     by the OS+hardware.  This should be at most a handful of microseconds in practice.</span></div>
+<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span><span class="comment"> * @todo `= default` for copy constructors and copy operators is now used in a few places; consider spreading</span></div>
+<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span><span class="comment"> * this C++11 feature everywhere it&#39;s being done implicitly due to C++03 rules (good documentation practices suggest</span></div>
+<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span><span class="comment"> * declaring them explicitly but of course leave the implementation to the compiler default, gaining best of both</span></div>
+<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span><span class="comment"> * worlds -- proper class API docs yet maintenance-friendly default body).</span></div>
+<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span><span class="comment"> * @todo Consider PIMPL and related topics.  Recommend scouring Boost docs, particularly for the smart pointer library,</span></div>
+<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span><span class="comment"> * which discuss how to potentially use smart pointers for easy PIMPLing.  In general, research the state of the art</span></div>
+<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span><span class="comment"> * on the topic of library interface vs. implementation/hiding.</span></div>
+<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span><span class="comment"> * @todo `std::string_view` is a way to pass things around similarly to `const std::string&amp;` without requiring</span></div>
+<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span><span class="comment"> * that a `string` be created just for that purpose; it has a highly similar API but can be constructed from any</span></div>
+<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span><span class="comment"> * character sequence in memory and internally stores nothing more than a pointer and length; we should use it wherever</span></div>
+<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span><span class="comment"> * possible (within reason) instead of `const std::string&amp;`.  Much code now uses `String_view`; the remaining to-do</span></div>
+<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span><span class="comment"> * is: scour the rest of the code for possible `const string&amp;`s to convert and indeed convert those to</span></div>
+<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span><span class="comment"> * util::String_view.</span></div>
+<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span><span class="comment"> * @todo Return-by-copy binary operators of the form `T operatorBLAH(const T&amp; x1, const Some_type&amp; x2)` should be</span></div>
+<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span><span class="comment"> * written as free functions instead of `T` members.  I don&#39;t recall at this point why, but this tends to be recommended</span></div>
+<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span><span class="comment"> * and done in STL and Boost.  Maybe check the Meyer Effective C++ book on the theory; and if it makes sense find all</span></div>
+<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span><span class="comment"> * such operators written as members and change them to be free functions.  Should this be avoided if it requires</span></div>
+<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span><span class="comment"> * `friend` though?  Lastly, for Doxygen, use the `relatesalso T` command to link the free function to the class `T`</span></div>
+<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span><span class="comment"> * in the documentation.</span></div>
+<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span><span class="comment"> * @todo In many (most) cases we pass `shared_ptr`s (and their aliases) by value when it would be more performant to</span></div>
+<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span><span class="comment"> * do so by `const` reference; at times possibly better to pass by raw pointer.  Scott Meyer/Herb Sutter have opined</span></div>
+<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span><span class="comment"> * on this to basically indicate that (1) it is often best to use a raw pointer, unless actual copying/ownership status</span></div>
+<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span><span class="comment"> * is expected; but failing that (2) it is often best to use a `const&amp;` when safe; and failing that passing by</span></div>
+<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span><span class="comment"> * value is fine.  This need not be a dogmatic change, but we should be more mindful than simply always passing by</span></div>
+<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span><span class="comment"> * value.  When searching for instances to potentially change, check for `shared_ptr`, `Ptr`, and `_ptr` tokens.</span></div>
+<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceflow.html">flow</a></div>
+<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span>{</div>
+<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span> </div>
+<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span><span class="comment">// Types.  They&#39;re outside of `namespace ::flow::util` for brevity due to their frequent use.</span></div>
+<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span> </div>
+<div class="line"><a id="l00388" name="l00388"></a><span class="lineno">  388</span><span class="comment">// Integer short-hands and specific-bit-width types.</span></div>
+<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span><span class="comment"></span> </div>
+<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span><span class="comment">/// Byte.  Best way to represent a byte of binary data.  This is 8 bits on all modern systems.</span></div>
+<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"><a class="line" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">  391</a></span><span class="comment"></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> = <span class="keywordtype">unsigned</span> char;<span class="comment"></span></div>
+<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span><span class="comment">/// Signed byte.  Prefer to use `uint8_t` when representing binary data.  This is 8 bits on all modern systems.</span></div>
+<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"><a class="line" href="namespaceflow.html#a96b8a241b21c907e96cb91f4bf868446">  393</a></span><span class="comment"></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow.html#a96b8a241b21c907e96cb91f4bf868446">int8_t</a> = <span class="keywordtype">signed</span> char;</div>
+<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span> </div>
+<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span><span class="comment">// Time-related short-hands.</span></div>
+<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span><span class="comment"></span> </div>
+<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span><span class="comment"> * Clock used for delicate time measurements, such that the `now()` method gets the current time</span></div>
+<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span><span class="comment"> * relative to some unknown but constant epoch (reference point).  Used to measure durations of</span></div>
+<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span><span class="comment"> * things.  It has the following properties:</span></div>
 <div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span><span class="comment"> * So basically it&#39;s a precise clock with no surprises (which is more than can be said for stuff people</span></div>
-<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span><span class="comment"> * tend to be forced to use, like `gettimeofday()`).</span></div>
-<div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"><a class="line" href="namespaceflow.html#a8f2e48761f9ca3ffcaa29872078bbf00">  405</a></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow.html#a8f2e48761f9ca3ffcaa29872078bbf00">Fine_clock</a> = boost::chrono::high_resolution_clock;</div>
-<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span><span class="comment"></span> </div>
-<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span><span class="comment">/// A high-res time point as returned by `Fine_clock::now()` and suitable for precise time math in general.</span></div>
-<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"><a class="line" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">  408</a></span><span class="comment"></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> = Fine_clock::time_point;</div>
-<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span><span class="comment"></span> </div>
-<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span><span class="comment">/// A high-res time duration as computed from two `Fine_time_pt`s.</span></div>
-<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"><a class="line" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">  411</a></span><span class="comment"></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> = Fine_clock::duration;</div>
-<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span><span class="comment"></span> </div>
-<div class="line"><a id="l00413" name="l00413"></a><span class="lineno">  413</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span><span class="comment"> * Short-hand for a boost.system error code (which basically encapsulates an integer/`enum` error</span></div>
-<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span><span class="comment"> * code and a pointer through which to obtain a statically stored message string); this is how Flow modules</span></div>
-<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span><span class="comment"> * report errors to the user; and we humbly recommended all C++ code use the same techniques.</span></div>
-<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span><span class="comment"> * @note It is not inside flow::error namespace due to its (`Error_code`&#39;s) ubiquity.</span></div>
-<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span><span class="comment"> *       Very few other symbols should follow suit.  We may decide to move it there after all.</span></div>
-<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span><span class="comment"> * ### Basic error-emitting API semantics ###</span></div>
+<div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span><span class="comment"> *   - Steady: time cannot go backwards (e.g., via user time change, NTP); time values increment at</span></div>
+<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span><span class="comment"> *     a rate proportional to real time (no leap seconds for example).</span></div>
+<div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span><span class="comment"> *   - High-resolution: the increments of time at which the clock runs are as small as supported</span></div>
+<div class="line"><a id="l00405" name="l00405"></a><span class="lineno">  405</span><span class="comment"> *     by the OS+hardware.  This should be at most a handful of microseconds in practice.</span></div>
+<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span><span class="comment"> * So basically it&#39;s a precise clock with no surprises (which is more than can be said for stuff people</span></div>
+<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span><span class="comment"> * tend to be forced to use, like `gettimeofday()`).</span></div>
+<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"><a class="line" href="namespaceflow.html#a8f2e48761f9ca3ffcaa29872078bbf00">  410</a></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow.html#a8f2e48761f9ca3ffcaa29872078bbf00">Fine_clock</a> = boost::chrono::high_resolution_clock;</div>
+<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span><span class="comment"></span> </div>
+<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span><span class="comment">/// A high-res time point as returned by `Fine_clock::now()` and suitable for precise time math in general.</span></div>
+<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"><a class="line" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">  413</a></span><span class="comment"></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> = Fine_clock::time_point;</div>
+<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span><span class="comment"></span> </div>
+<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span><span class="comment">/// A high-res time duration as computed from two `Fine_time_pt`s.</span></div>
+<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"><a class="line" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">  416</a></span><span class="comment"></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> = Fine_clock::duration;</div>
+<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span><span class="comment"></span> </div>
+<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span><span class="comment"> * Short-hand for a boost.system error code (which basically encapsulates an integer/`enum` error</span></div>
+<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span><span class="comment"> * code and a pointer through which to obtain a statically stored message string); this is how Flow modules</span></div>
+<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span><span class="comment"> * report errors to the user; and we humbly recommended all C++ code use the same techniques.</span></div>
 <div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span><span class="comment"> * All error-reporting Flow APIs follow the following pattern of error reporting semantics.</span></div>
-<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span><span class="comment"> * Each API looks something like:</span></div>
+<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span><span class="comment"> * @note It is not inside flow::error namespace due to its (`Error_code`&#39;s) ubiquity.</span></div>
+<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span><span class="comment"> *       Very few other symbols should follow suit.  We may decide to move it there after all.</span></div>
 <div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span><span class="comment"> *   ~~~</span></div>
-<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span><span class="comment"> *   return_type Some_class::some_op(..., flow::Error_code* err_code)</span></div>
-<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span><span class="comment"> *   ~~~</span></div>
-<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span><span class="comment"> * Then, there are two possibilities.  If you pass in non-null `err_code`, then after return `*err_code` is</span></div>
-<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span><span class="comment"> * success (falsy) or a truthy `enum`-like value, representing a specific error.  If, instead, you pass in null,</span></div>
-<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span><span class="comment"> * then a flow::error::Runtime_error() `exc` is thrown if and only if `*err_code` would have been set to truthy value</span></div>
-<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span><span class="comment"> * `e_c` had a non-null `err_code` been passed in.  If such an exception is thrown, `Error_code e_c` is</span></div>
-<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span><span class="comment"> * encapsulated in exception object `exc`.  If and only if no exception is thrown, there was no error (`*err_code` would</span></div>
-<div class="line"><a id="l00435" name="l00435"></a><span class="lineno">  435</span><span class="comment"> * have been falsy).</span></div>
-<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span><span class="comment"> * Thus, you get the best of both worlds: you can get the simplicity and performance</span></div>
-<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span><span class="comment"> * of an error code; or the various features of an exception (including access to the error code via</span></div>
-<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span><span class="comment"> * `exc.code()` if desired), with the same API signature.  (boost.asio</span></div>
-<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span><span class="comment"> * follows a similar concept, though it requires two API signatures for each operation, one without</span></div>
-<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span><span class="comment"> * an `Error_code` argument, and one with non-`const` `Error_code&amp;` out-arg.  The above convention is more compact;</span></div>
-<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span><span class="comment"> * plus we provide certain tools to reduce boiler-plate in connection with this.)</span></div>
-<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span><span class="comment"> * ### Intro to `Error_code`, a/k/a boost.system `error_code` ###</span></div>
-<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span><span class="comment"> * (I am restating boost.system documentation here, but that particular set of docs is notoriously</span></div>
-<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span><span class="comment"> * formal-but-reader-unfriendly.)</span></div>
-<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span><span class="comment"> * A truthy `Error_code` is a very lightweight -- `errno`-like in that regard -- value indicating</span></div>
-<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span><span class="comment"> * the error that occurred.  It stores an `int` code and a &quot;category&quot; pointer (basically, thing specifying to what code</span></div>
-<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span><span class="comment"> * set this belongs).  The `int` is to be converted from the error code set of choice, whereas the category pointer is</span></div>
-<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span><span class="comment"> * internally magically determined based on the type of the error code value being converted to `Error_code`.</span></div>
+<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span><span class="comment"> * ### Basic error-emitting API semantics ###</span></div>
+<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span><span class="comment"> * All error-reporting Flow APIs follow the following pattern of error reporting semantics.</span></div>
+<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span><span class="comment"> * Each API looks something like:</span></div>
+<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span><span class="comment"> *   ~~~</span></div>
+<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span><span class="comment"> *   return_type Some_class::some_op(..., flow::Error_code* err_code)</span></div>
+<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span><span class="comment"> *   ~~~</span></div>
+<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00435" name="l00435"></a><span class="lineno">  435</span><span class="comment"> * Then, there are two possibilities.  If you pass in non-null `err_code`, then after return `*err_code` is</span></div>
+<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span><span class="comment"> * success (falsy) or a truthy `enum`-like value, representing a specific error.  If, instead, you pass in null,</span></div>
+<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span><span class="comment"> * then a flow::error::Runtime_error() `exc` is thrown if and only if `*err_code` would have been set to truthy value</span></div>
+<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span><span class="comment"> * `e_c` had a non-null `err_code` been passed in.  If such an exception is thrown, `Error_code e_c` is</span></div>
+<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span><span class="comment"> * encapsulated in exception object `exc`.  If and only if no exception is thrown, there was no error (`*err_code` would</span></div>
+<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span><span class="comment"> * have been falsy).</span></div>
+<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span><span class="comment"> * Thus, you get the best of both worlds: you can get the simplicity and performance</span></div>
+<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span><span class="comment"> * of an error code; or the various features of an exception (including access to the error code via</span></div>
+<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span><span class="comment"> * `exc.code()` if desired), with the same API signature.  (boost.asio</span></div>
+<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span><span class="comment"> * follows a similar concept, though it requires two API signatures for each operation, one without</span></div>
+<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span><span class="comment"> * an `Error_code` argument, and one with non-`const` `Error_code&amp;` out-arg.  The above convention is more compact;</span></div>
+<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span><span class="comment"> * plus we provide certain tools to reduce boiler-plate in connection with this.)</span></div>
+<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span><span class="comment"> * ### Intro to `Error_code`, a/k/a boost.system `error_code` ###</span></div>
+<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span><span class="comment"> * (I am restating boost.system documentation here, but that particular set of docs is notoriously</span></div>
+<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span><span class="comment"> * formal-but-reader-unfriendly.)</span></div>
 <div class="line"><a id="l00452" name="l00452"></a><span class="lineno">  452</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span><span class="comment"> * An `Error_code` itself can be serialized into `ostream`s (and thus `string`s via `lexical_cast`, etc.) easily for</span></div>
-<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span><span class="comment"> * logging purposes/etc.  You can access both the numeric code and a human explanation of the error.</span></div>
-<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span><span class="comment"> * Any and all error code sets are supported by this boost.system type.  POSIX `errno`s are one possible set of codes;</span></div>
-<div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span><span class="comment"> * boost.asio has its own code set; and other modules in `flow` may introduce their own code sets.  All are compatible</span></div>
-<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span><span class="comment"> * for equality/assignment/etc. with this general `Error_code` type.</span></div>
-<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span><span class="comment"> * As stated, all error-emitting Flow public APIs (regardless of module) use the above-described error-reporting</span></div>
-<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span><span class="comment"> * conventions.  In addition, we humbly recommend Flow *user* code adopt the same battle-tested conventions.  However</span></div>
-<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span><span class="comment"> * that is absolutely not required and is entirely independent of the fact that Flow modules use them.  Do note this</span></div>
-<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span><span class="comment"> * convention is battle-tested in boost.asio as well; though Flow&#39;s version is more compact; by using a pointer (which</span></div>
-<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span><span class="comment"> * can be null) instead of a reference it cuts the number of error-emitting API functions in half.</span></div>
-<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span><span class="comment"> * For each function (including each publicly exported error-reporting function within Flow) that indeed agrees to</span></div>
-<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span><span class="comment"> * use the above convention, follow these instructions:</span></div>
-<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span><span class="comment"> * To reduce boiler-plate, within reason, it is incumbent on each error-reporting method to use the following</span></div>
-<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span><span class="comment"> * technique:</span></div>
-<div class="line"><a id="l00470" name="l00470"></a><span class="lineno">  470</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00471" name="l00471"></a><span class="lineno">  471</span><span class="comment"> * - The method signature should be similar to the above (including naming it `err_code`) and use the above semantics.</span></div>
-<div class="line"><a id="l00472" name="l00472"></a><span class="lineno">  472</span><span class="comment"> *   - Use FLOW_ERROR_EXEC_AND_THROW_ON_ERROR() (and/or nearby similar utilities in flow/error/error.hpp) for minimal</span></div>
-<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span><span class="comment"> *     boiler-plate that implements these semantics.  See doc header for that macro for details.</span></div>
-<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span><span class="comment"> * - You may or may not indicate the lack or presence of an error condition via some additional non-exception technique</span></div>
-<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span><span class="comment"> *   such as a `bool` return value.</span></div>
-<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span><span class="comment"> * - The error behavior documentation should be *confined entirely* to the documentation of `err_code` parameter, so</span></div>
-<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span><span class="comment"> *   that the above semantics need not be repetitively restated a million times.</span></div>
-<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span><span class="comment"> *   The text of the parameter&#39;s doc should usually be as follows (you may copy/paste to start).  In this example</span></div>
-<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span><span class="comment"> *   the function returns codes from the `net_flow::error::Code` code set `enum`; but please substitute your code set of</span></div>
-<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span><span class="comment"> *   choice (again; `errno` and boost.asio error codes are 2 possible other examples of code sets).  Here we go:</span></div>
-<div class="line"><a id="l00481" name="l00481"></a><span class="lineno">  481</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span><span class="comment"> *   ~~~</span></div>
-<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span><span class="comment"> *   // param err_code</span></div>
-<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span><span class="comment"> *   //       See flow::Error_code docs for error reporting semantics.  net_flow::error::Code generated:</span></div>
-<div class="line"><a id="l00485" name="l00485"></a><span class="lineno">  485</span><span class="comment"> *   //       net_flow::error::Code::S_(...) (optional comment), ...more... , net_flow::error::Code::S_(...)</span></div>
-<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span><span class="comment"> *   //       (optional comment).</span></div>
+<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span><span class="comment"> * A truthy `Error_code` is a very lightweight -- `errno`-like in that regard -- value indicating</span></div>
+<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span><span class="comment"> * the error that occurred.  It stores an `int` code and a &quot;category&quot; pointer (basically, thing specifying to what code</span></div>
+<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span><span class="comment"> * set this belongs).  The `int` is to be converted from the error code set of choice, whereas the category pointer is</span></div>
+<div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span><span class="comment"> * internally magically determined based on the type of the error code value being converted to `Error_code`.</span></div>
+<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span><span class="comment"> * An `Error_code` itself can be serialized into `ostream`s (and thus `string`s via `lexical_cast`, etc.) easily for</span></div>
+<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span><span class="comment"> * logging purposes/etc.  You can access both the numeric code and a human explanation of the error.</span></div>
+<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span><span class="comment"> * Any and all error code sets are supported by this boost.system type.  POSIX `errno`s are one possible set of codes;</span></div>
+<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span><span class="comment"> * boost.asio has its own code set; and other modules in `flow` may introduce their own code sets.  All are compatible</span></div>
+<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span><span class="comment"> * for equality/assignment/etc. with this general `Error_code` type.</span></div>
+<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span><span class="comment"> * As stated, all error-emitting Flow public APIs (regardless of module) use the above-described error-reporting</span></div>
+<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span><span class="comment"> * conventions.  In addition, we humbly recommend Flow *user* code adopt the same battle-tested conventions.  However</span></div>
+<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span><span class="comment"> * that is absolutely not required and is entirely independent of the fact that Flow modules use them.  Do note this</span></div>
+<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span><span class="comment"> * convention is battle-tested in boost.asio as well; though Flow&#39;s version is more compact; by using a pointer (which</span></div>
+<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span><span class="comment"> * can be null) instead of a reference it cuts the number of error-emitting API functions in half.</span></div>
+<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00470" name="l00470"></a><span class="lineno">  470</span><span class="comment"> * For each function (including each publicly exported error-reporting function within Flow) that indeed agrees to</span></div>
+<div class="line"><a id="l00471" name="l00471"></a><span class="lineno">  471</span><span class="comment"> * use the above convention, follow these instructions:</span></div>
+<div class="line"><a id="l00472" name="l00472"></a><span class="lineno">  472</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span><span class="comment"> * To reduce boiler-plate, within reason, it is incumbent on each error-reporting method to use the following</span></div>
+<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span><span class="comment"> * technique:</span></div>
+<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span><span class="comment"> * - The method signature should be similar to the above (including naming it `err_code`) and use the above semantics.</span></div>
+<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span><span class="comment"> *   - Use FLOW_ERROR_EXEC_AND_THROW_ON_ERROR() (and/or nearby similar utilities in flow/error/error.hpp) for minimal</span></div>
+<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span><span class="comment"> *     boiler-plate that implements these semantics.  See doc header for that macro for details.</span></div>
+<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span><span class="comment"> * - You may or may not indicate the lack or presence of an error condition via some additional non-exception technique</span></div>
+<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span><span class="comment"> *   such as a `bool` return value.</span></div>
+<div class="line"><a id="l00481" name="l00481"></a><span class="lineno">  481</span><span class="comment"> * - The error behavior documentation should be *confined entirely* to the documentation of `err_code` parameter, so</span></div>
+<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span><span class="comment"> *   that the above semantics need not be repetitively restated a million times.</span></div>
+<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span><span class="comment"> *   The text of the parameter&#39;s doc should usually be as follows (you may copy/paste to start).  In this example</span></div>
+<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span><span class="comment"> *   the function returns codes from the `net_flow::error::Code` code set `enum`; but please substitute your code set of</span></div>
+<div class="line"><a id="l00485" name="l00485"></a><span class="lineno">  485</span><span class="comment"> *   choice (again; `errno` and boost.asio error codes are 2 possible other examples of code sets).  Here we go:</span></div>
+<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span><span class="comment"> *</span></div>
 <div class="line"><a id="l00487" name="l00487"></a><span class="lineno">  487</span><span class="comment"> *   ~~~</span></div>
-<div class="line"><a id="l00488" name="l00488"></a><span class="lineno">  488</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span><span class="comment"> * @see The doc header (and code inside) `namespace` flow::net_flow::error is a good primer showing how to create</span></div>
-<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span><span class="comment"> *      an `Error_code`-compatible set of error codes.  This is easier to understand than boost.asio&#39;s counterpart</span></div>
-<div class="line"><a id="l00491" name="l00491"></a><span class="lineno">  491</span><span class="comment"> *      for example.</span></div>
-<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span><span class="comment"> * @note boost.system at some point -- I (ygoldfel) am fairly sure after I designed the above ages ago -- introduced</span></div>
-<div class="line"><a id="l00494" name="l00494"></a><span class="lineno">  494</span><span class="comment"> *       an alternate idiom for passing an #Error_code out-arg that is to be ignored in favor of throwing an exception</span></div>
-<div class="line"><a id="l00495" name="l00495"></a><span class="lineno">  495</span><span class="comment"> *       if omitted.  We use the idiom: `Error_code*` out-arg, throw if null.  They, instead propose:</span></div>
-<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span><span class="comment"> *       `Error_code&amp;` out-arg, throw if it equals `boost::system::throws()`.  That&#39;s great, too, but actually our</span></div>
-<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span><span class="comment"> *       idiom hews to another bit of the Flow coding style/guide, wherein out-args should be pointers, not</span></div>
-<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span><span class="comment"> *       non-`const` references -- and is otherwise very similar.  So it&#39;s fine.  Note that their idiom vs. ours =</span></div>
-<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span><span class="comment"> *       orthogonal to the main difficulty which is the boiler-plate associated with actually throwing vs. non-throwing;</span></div>
-<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span><span class="comment"> *       this would be required regardless of the API idiom chosen.  The above (involving</span></div>
-<div class="line"><a id="l00501" name="l00501"></a><span class="lineno">  501</span><span class="comment"> *       FLOW_ERROR_EXEC_AND_THROW_ON_ERROR(), etc.) is really the main crux of it.</span></div>
-<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"><a class="line" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">  503</a></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> = boost::system::error_code;</div>
-<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span> </div>
-<div class="line"><a id="l00505" name="l00505"></a><span class="lineno">  505</span><span class="comment">// See just below.</span></div>
-<div class="line"><a id="l00506" name="l00506"></a><span class="lineno">  506</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Signature&gt;</div>
-<div class="line"><a id="l00507" name="l00507"></a><span class="lineno"><a class="line" href="classflow_1_1Function.html">  507</a></span><span class="keyword">class </span><a class="code hl_class" href="classflow_1_1Function.html">Function</a>;</div>
-<div class="line"><a id="l00508" name="l00508"></a><span class="lineno">  508</span><span class="comment"></span> </div>
-<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span><span class="comment"> * Intended as the polymorphic function wrapper of choice for Flow, internally and externally; to be used</span></div>
-<div class="line"><a id="l00511" name="l00511"></a><span class="lineno">  511</span><span class="comment"> * instead of `std::function` or `boost::function`.  Due to ubiquitous use of such function-object wrappers,</span></div>
-<div class="line"><a id="l00512" name="l00512"></a><span class="lineno">  512</span><span class="comment"> * this is one of the very few direct non-`namespace` members of the outer namespace `::flow`.</span></div>
-<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span><span class="comment"> * In reality it *is* `std::function`, with a couple of added APIs (no data) to make it more similar to</span></div>
-<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span><span class="comment"> * `boost::function` API-wise.</span></div>
-<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00517" name="l00517"></a><span class="lineno">  517</span><span class="comment"> * ### Rationale ###</span></div>
-<div class="line"><a id="l00518" name="l00518"></a><span class="lineno">  518</span><span class="comment"> * By far the main reason this exists is: I (ygoldfel) conducted an investigation in 2022, with a not-too-old gcc</span></div>
-<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span><span class="comment"> * in Linux, in C++17 mode, with Boost 1.78 (but built seemingly in C++03-supporting config) about the</span></div>
-<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span><span class="comment"> * performance behavior of lambdas objects and `boost::function&lt;&gt;` and `std::function&lt;&gt;` wrappers thereof.</span></div>
-<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span><span class="comment"> * I noticed these things:</span></div>
-<div class="line"><a id="l00522" name="l00522"></a><span class="lineno">  522</span><span class="comment"> *   - Say one constructs a `boost::function` from a lambda that has 1 or more by-value captures `[x = std::move(x)]`,</span></div>
-<div class="line"><a id="l00523" name="l00523"></a><span class="lineno">  523</span><span class="comment"> *     with those captures&#39; types having move ctors different and faster than copy ctors.  I found that this not only</span></div>
-<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span><span class="comment"> *     *copies* each of those captures (invokes their copy ctors), but it even does so several times!</span></div>
-<div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span><span class="comment"> *     - However, constructing an `std::function` identically never invokes copy ctors -- only move ctors --</span></div>
-<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span><span class="comment"> *       and fewer times at that.</span></div>
+<div class="line"><a id="l00488" name="l00488"></a><span class="lineno">  488</span><span class="comment"> *   // param err_code</span></div>
+<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span><span class="comment"> *   //       See flow::Error_code docs for error reporting semantics.  net_flow::error::Code generated:</span></div>
+<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span><span class="comment"> *   //       net_flow::error::Code::S_(...) (optional comment), ...more... , net_flow::error::Code::S_(...)</span></div>
+<div class="line"><a id="l00491" name="l00491"></a><span class="lineno">  491</span><span class="comment"> *   //       (optional comment).</span></div>
+<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span><span class="comment"> *   ~~~</span></div>
+<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00494" name="l00494"></a><span class="lineno">  494</span><span class="comment"> * @see The doc header (and code inside) `namespace` flow::net_flow::error is a good primer showing how to create</span></div>
+<div class="line"><a id="l00495" name="l00495"></a><span class="lineno">  495</span><span class="comment"> *      an `Error_code`-compatible set of error codes.  This is easier to understand than boost.asio&#39;s counterpart</span></div>
+<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span><span class="comment"> *      for example.</span></div>
+<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span><span class="comment"> * @note boost.system at some point -- I (ygoldfel) am fairly sure after I designed the above ages ago -- introduced</span></div>
+<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span><span class="comment"> *       an alternate idiom for passing an #Error_code out-arg that is to be ignored in favor of throwing an exception</span></div>
+<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span><span class="comment"> *       if omitted.  We use the idiom: `Error_code*` out-arg, throw if null.  They, instead propose:</span></div>
+<div class="line"><a id="l00501" name="l00501"></a><span class="lineno">  501</span><span class="comment"> *       `Error_code&amp;` out-arg, throw if it equals `boost::system::throws()`.  That&#39;s great, too, but actually our</span></div>
+<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span><span class="comment"> *       idiom hews to another bit of the Flow coding style/guide, wherein out-args should be pointers, not</span></div>
+<div class="line"><a id="l00503" name="l00503"></a><span class="lineno">  503</span><span class="comment"> *       non-`const` references -- and is otherwise very similar.  So it&#39;s fine.  Note that their idiom vs. ours =</span></div>
+<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span><span class="comment"> *       orthogonal to the main difficulty which is the boiler-plate associated with actually throwing vs. non-throwing;</span></div>
+<div class="line"><a id="l00505" name="l00505"></a><span class="lineno">  505</span><span class="comment"> *       this would be required regardless of the API idiom chosen.  The above (involving</span></div>
+<div class="line"><a id="l00506" name="l00506"></a><span class="lineno">  506</span><span class="comment"> *       FLOW_ERROR_EXEC_AND_THROW_ON_ERROR(), etc.) is really the main crux of it.</span></div>
+<div class="line"><a id="l00507" name="l00507"></a><span class="lineno">  507</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00508" name="l00508"></a><span class="lineno"><a class="line" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">  508</a></span><span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> = boost::system::error_code;</div>
+<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span> </div>
+<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span><span class="comment">// See just below.</span></div>
+<div class="line"><a id="l00511" name="l00511"></a><span class="lineno">  511</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Signature&gt;</div>
+<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"><a class="line" href="classflow_1_1Function.html">  512</a></span><span class="keyword">class </span><a class="code hl_class" href="classflow_1_1Function.html">Function</a>;</div>
+<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span><span class="comment"></span> </div>
+<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span><span class="comment"> * Intended as the polymorphic function wrapper of choice for Flow, internally and externally; to be used</span></div>
+<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span><span class="comment"> * instead of `std::function` or `boost::function`.  Due to ubiquitous use of such function-object wrappers,</span></div>
+<div class="line"><a id="l00517" name="l00517"></a><span class="lineno">  517</span><span class="comment"> * this is one of the very few direct non-`namespace` members of the outer namespace `::flow`.</span></div>
+<div class="line"><a id="l00518" name="l00518"></a><span class="lineno">  518</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span><span class="comment"> * In reality it *is* `std::function`, with a couple of added APIs (no data) to make it more similar to</span></div>
+<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span><span class="comment"> * `boost::function` API-wise.</span></div>
+<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00522" name="l00522"></a><span class="lineno">  522</span><span class="comment"> * ### Rationale ###</span></div>
+<div class="line"><a id="l00523" name="l00523"></a><span class="lineno">  523</span><span class="comment"> * By far the main reason this exists is: I (ygoldfel) conducted an investigation in 2022, with a not-too-old gcc</span></div>
+<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span><span class="comment"> * in Linux, in C++17 mode, with Boost 1.78 (but built seemingly in C++03-supporting config) about the</span></div>
+<div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span><span class="comment"> * performance behavior of lambdas objects and `boost::function&lt;&gt;` and `std::function&lt;&gt;` wrappers thereof.</span></div>
+<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span><span class="comment"> * I noticed these things:</span></div>
 <div class="line"><a id="l00527" name="l00527"></a><span class="lineno">  527</span><span class="comment"> *   - Say one constructs a `boost::function` from a lambda that has 1 or more by-value captures `[x = std::move(x)]`,</span></div>
-<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span><span class="comment"> *     with those captures&#39; types having move ctors but `= delete`d copy ctors.  I.e., say at least 1 capture is</span></div>
-<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span><span class="comment"> *     movable but not copyable; `unique_ptr` being a classic and practical example.  Well: This does not compile;</span></div>
-<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span><span class="comment"> *     gcc complains `boost::function` needs `unique_ptr` to have a copy ctor, but it is `delete`d.</span></div>
-<div class="line"><a id="l00531" name="l00531"></a><span class="lineno">  531</span><span class="comment"> *     In the case of `unique_ptr`, one can do `[x = shared_ptr(std::move(x))]` to get it work, though it&#39;s a bit</span></div>
-<div class="line"><a id="l00532" name="l00532"></a><span class="lineno">  532</span><span class="comment"> *     more code, reduces perf by adding ref-counting, and reduces smart-ptr safety inside the lambda body.</span></div>
-<div class="line"><a id="l00533" name="l00533"></a><span class="lineno">  533</span><span class="comment"> *     - However, constructing an `std::function` identically compiles and works fine.</span></div>
-<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span><span class="comment"> * So, long story short, at least in that environment, `std::function` is just plain faster than `boost::function`,</span></div>
-<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span><span class="comment"> * avoiding copying of captures; and it&#39;s easier to use with movable-not-copyable capture types.</span></div>
-<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span><span class="comment"> * So we could have just done circa `using Function = std::function;`.  Why the subclass?  Answer: `std::function`</span></div>
-<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span><span class="comment"> * lacks a couple of commonly used `boost::function` APIs that code tends to rely on (in the past we used</span></div>
-<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span><span class="comment"> * `boost::function`).  These are empty() and clear() as of this writing.  See their doc headers (nothing amazing).</span></div>
-<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00542" name="l00542"></a><span class="lineno">  542</span><span class="comment"> * Lastly: In the aforementioned environment, possibly because of having to support C++03 (which lacked</span></div>
-<div class="line"><a id="l00543" name="l00543"></a><span class="lineno">  543</span><span class="comment"> * param packs) -- unlike `std::function` which was introduced in C++11 to begin with (and</span></div>
-<div class="line"><a id="l00544" name="l00544"></a><span class="lineno">  544</span><span class="comment"> * probably conceptually based on `boost::function`) -- `boost::function`</span></div>
-<div class="line"><a id="l00545" name="l00545"></a><span class="lineno">  545</span><span class="comment"> * supports up to 10 args and does not compile when used with 11+ args.  `std::function`, and therefore Function,</span></div>
-<div class="line"><a id="l00546" name="l00546"></a><span class="lineno">  546</span><span class="comment"> * lacks this limitation.  It can be used with any number of args.</span></div>
-<div class="line"><a id="l00547" name="l00547"></a><span class="lineno">  547</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00548" name="l00548"></a><span class="lineno">  548</span><span class="comment"> * @tparam Result</span></div>
-<div class="line"><a id="l00549" name="l00549"></a><span class="lineno">  549</span><span class="comment"> *         See `std::function`.</span></div>
-<div class="line"><a id="l00550" name="l00550"></a><span class="lineno">  550</span><span class="comment"> * @tparam Args</span></div>
-<div class="line"><a id="l00551" name="l00551"></a><span class="lineno">  551</span><span class="comment"> *         See `std::function`.</span></div>
-<div class="line"><a id="l00552" name="l00552"></a><span class="lineno">  552</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00553" name="l00553"></a><span class="lineno">  553</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Result, <span class="keyword">typename</span>... Args&gt;</div>
-<div class="line"><a id="l00554" name="l00554"></a><span class="lineno"><a class="line" href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html">  554</a></span><span class="keyword">class </span><a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;Result (Args...)&gt; :</div>
-<div class="line"><a id="l00555" name="l00555"></a><span class="lineno">  555</span>  <span class="keyword">public</span> std::function&lt;Result (Args...)&gt;</div>
-<div class="line"><a id="l00556" name="l00556"></a><span class="lineno">  556</span>{</div>
-<div class="line"><a id="l00557" name="l00557"></a><span class="lineno">  557</span><span class="keyword">public</span>:</div>
-<div class="line"><a id="l00558" name="l00558"></a><span class="lineno">  558</span>  <span class="comment">// Types.</span></div>
-<div class="line"><a id="l00559" name="l00559"></a><span class="lineno">  559</span><span class="comment"></span> </div>
-<div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span><span class="comment">  /// Short-hand for the base.  We add no data of our own in this subclass, just a handful of APIs.</span></div>
-<div class="line"><a id="l00561" name="l00561"></a><span class="lineno"><a class="line" href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html#ac9d820d29d397987a6a97469f39e367e">  561</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html#ac9d820d29d397987a6a97469f39e367e">Function_base</a> = std::function&lt;Result (Args...)&gt;;</div>
-<div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span> </div>
-<div class="line"><a id="l00563" name="l00563"></a><span class="lineno">  563</span>  <span class="comment">// Ctors/destructor.</span></div>
+<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span><span class="comment"> *     with those captures&#39; types having move ctors different and faster than copy ctors.  I found that this not only</span></div>
+<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span><span class="comment"> *     *copies* each of those captures (invokes their copy ctors), but it even does so several times!</span></div>
+<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span><span class="comment"> *     - However, constructing an `std::function` identically never invokes copy ctors -- only move ctors --</span></div>
+<div class="line"><a id="l00531" name="l00531"></a><span class="lineno">  531</span><span class="comment"> *       and fewer times at that.</span></div>
+<div class="line"><a id="l00532" name="l00532"></a><span class="lineno">  532</span><span class="comment"> *   - Say one constructs a `boost::function` from a lambda that has 1 or more by-value captures `[x = std::move(x)]`,</span></div>
+<div class="line"><a id="l00533" name="l00533"></a><span class="lineno">  533</span><span class="comment"> *     with those captures&#39; types having move ctors but `= delete`d copy ctors.  I.e., say at least 1 capture is</span></div>
+<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span><span class="comment"> *     movable but not copyable; `unique_ptr` being a classic and practical example.  Well: This does not compile;</span></div>
+<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span><span class="comment"> *     gcc complains `boost::function` needs `unique_ptr` to have a copy ctor, but it is `delete`d.</span></div>
+<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span><span class="comment"> *     In the case of `unique_ptr`, one can do `[x = shared_ptr(std::move(x))]` to get it work, though it&#39;s a bit</span></div>
+<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span><span class="comment"> *     more code, reduces perf by adding ref-counting, and reduces smart-ptr safety inside the lambda body.</span></div>
+<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span><span class="comment"> *     - However, constructing an `std::function` identically compiles and works fine.</span></div>
+<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span><span class="comment"> * So, long story short, at least in that environment, `std::function` is just plain faster than `boost::function`,</span></div>
+<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span><span class="comment"> * avoiding copying of captures; and it&#39;s easier to use with movable-not-copyable capture types.</span></div>
+<div class="line"><a id="l00542" name="l00542"></a><span class="lineno">  542</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00543" name="l00543"></a><span class="lineno">  543</span><span class="comment"> * So we could have just done circa `using Function = std::function;`.  Why the subclass?  Answer: `std::function`</span></div>
+<div class="line"><a id="l00544" name="l00544"></a><span class="lineno">  544</span><span class="comment"> * lacks a couple of commonly used `boost::function` APIs that code tends to rely on (in the past we used</span></div>
+<div class="line"><a id="l00545" name="l00545"></a><span class="lineno">  545</span><span class="comment"> * `boost::function`).  These are empty() and clear() as of this writing.  See their doc headers (nothing amazing).</span></div>
+<div class="line"><a id="l00546" name="l00546"></a><span class="lineno">  546</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00547" name="l00547"></a><span class="lineno">  547</span><span class="comment"> * Lastly: In the aforementioned environment, possibly because of having to support C++03 (which lacked</span></div>
+<div class="line"><a id="l00548" name="l00548"></a><span class="lineno">  548</span><span class="comment"> * param packs) -- unlike `std::function` which was introduced in C++11 to begin with (and</span></div>
+<div class="line"><a id="l00549" name="l00549"></a><span class="lineno">  549</span><span class="comment"> * probably conceptually based on `boost::function`) -- `boost::function`</span></div>
+<div class="line"><a id="l00550" name="l00550"></a><span class="lineno">  550</span><span class="comment"> * supports up to 10 args and does not compile when used with 11+ args.  `std::function`, and therefore Function,</span></div>
+<div class="line"><a id="l00551" name="l00551"></a><span class="lineno">  551</span><span class="comment"> * lacks this limitation.  It can be used with any number of args.</span></div>
+<div class="line"><a id="l00552" name="l00552"></a><span class="lineno">  552</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00553" name="l00553"></a><span class="lineno">  553</span><span class="comment"> * @tparam Result</span></div>
+<div class="line"><a id="l00554" name="l00554"></a><span class="lineno">  554</span><span class="comment"> *         See `std::function`.</span></div>
+<div class="line"><a id="l00555" name="l00555"></a><span class="lineno">  555</span><span class="comment"> * @tparam Args</span></div>
+<div class="line"><a id="l00556" name="l00556"></a><span class="lineno">  556</span><span class="comment"> *         See `std::function`.</span></div>
+<div class="line"><a id="l00557" name="l00557"></a><span class="lineno">  557</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00558" name="l00558"></a><span class="lineno">  558</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Result, <span class="keyword">typename</span>... Args&gt;</div>
+<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"><a class="line" href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html">  559</a></span><span class="keyword">class </span><a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;Result (Args...)&gt; :</div>
+<div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span>  <span class="keyword">public</span> std::function&lt;Result (Args...)&gt;</div>
+<div class="line"><a id="l00561" name="l00561"></a><span class="lineno">  561</span>{</div>
+<div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span><span class="keyword">public</span>:</div>
+<div class="line"><a id="l00563" name="l00563"></a><span class="lineno">  563</span>  <span class="comment">// Types.</span></div>
 <div class="line"><a id="l00564" name="l00564"></a><span class="lineno">  564</span><span class="comment"></span> </div>
-<div class="line"><a id="l00565" name="l00565"></a><span class="lineno">  565</span><span class="comment">  /// Inherit all the constructors from #Function_base.  Add none of our own.</span></div>
-<div class="line"><a id="l00566" name="l00566"></a><span class="lineno">  566</span><span class="comment"></span>  <span class="keyword">using </span>Function_base::Function_base;</div>
+<div class="line"><a id="l00565" name="l00565"></a><span class="lineno">  565</span><span class="comment">  /// Short-hand for the base.  We add no data of our own in this subclass, just a handful of APIs.</span></div>
+<div class="line"><a id="l00566" name="l00566"></a><span class="lineno"><a class="line" href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html#ac9d820d29d397987a6a97469f39e367e">  566</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html#ac9d820d29d397987a6a97469f39e367e">Function_base</a> = std::function&lt;Result (Args...)&gt;;</div>
 <div class="line"><a id="l00567" name="l00567"></a><span class="lineno">  567</span> </div>
-<div class="line"><a id="l00568" name="l00568"></a><span class="lineno">  568</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00568" name="l00568"></a><span class="lineno">  568</span>  <span class="comment">// Ctors/destructor.</span></div>
 <div class="line"><a id="l00569" name="l00569"></a><span class="lineno">  569</span><span class="comment"></span> </div>
-<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00571" name="l00571"></a><span class="lineno">  571</span><span class="comment">   * Returns `!bool(*this)`; i.e., `true` if and only if `*this` has no target.</span></div>
-<div class="line"><a id="l00572" name="l00572"></a><span class="lineno">  572</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00573" name="l00573"></a><span class="lineno">  573</span><span class="comment">   * ### Rationale ###</span></div>
-<div class="line"><a id="l00574" name="l00574"></a><span class="lineno">  574</span><span class="comment">   * Provided due to ubuiquity of code that uses `boost::function::empty()` which `std::function` lacks.</span></div>
-<div class="line"><a id="l00575" name="l00575"></a><span class="lineno">  575</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00576" name="l00576"></a><span class="lineno">  576</span><span class="comment">   * @return See above.</span></div>
-<div class="line"><a id="l00577" name="l00577"></a><span class="lineno">  577</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00578" name="l00578"></a><span class="lineno">  578</span>  <span class="keywordtype">bool</span> empty() const noexcept;</div>
-<div class="line"><a id="l00579" name="l00579"></a><span class="lineno">  579</span><span class="comment"></span> </div>
-<div class="line"><a id="l00580" name="l00580"></a><span class="lineno">  580</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00581" name="l00581"></a><span class="lineno">  581</span><span class="comment">   * Makes `*this` lack any target; i.e., makes it equal to a default-constructed object of this type, so that</span></div>
-<div class="line"><a id="l00582" name="l00582"></a><span class="lineno">  582</span><span class="comment">   * `empty() == true` is a post-condition.</span></div>
-<div class="line"><a id="l00583" name="l00583"></a><span class="lineno">  583</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00584" name="l00584"></a><span class="lineno">  584</span><span class="comment">   * ### Rationale ###</span></div>
-<div class="line"><a id="l00585" name="l00585"></a><span class="lineno">  585</span><span class="comment">   * Provided due to ubuiquity of code that uses `boost::function::clear()` which `std::function` lacks.</span></div>
-<div class="line"><a id="l00586" name="l00586"></a><span class="lineno">  586</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00587" name="l00587"></a><span class="lineno">  587</span>  <span class="keywordtype">void</span> clear() noexcept;</div>
-<div class="line"><a id="l00588" name="l00588"></a><span class="lineno">  588</span>}; <span class="comment">// class Function&lt;Result (Args...)&gt;</span></div>
-<div class="line"><a id="l00589" name="l00589"></a><span class="lineno">  589</span> </div>
-<div class="line"><a id="l00590" name="l00590"></a><span class="lineno">  590</span><span class="preprocessor">#ifdef FLOW_DOXYGEN_ONLY </span><span class="comment">// Actual compilation will ignore the below; but Doxygen will scan it and generate docs.</span></div>
-<div class="line"><a id="l00591" name="l00591"></a><span class="lineno">  591</span><span class="comment"></span> </div>
-<div class="line"><a id="l00592" name="l00592"></a><span class="lineno">  592</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00593" name="l00593"></a><span class="lineno">  593</span><span class="comment"> * The flow::log::Component payload enumeration comprising various log components used by Flow&#39;s own internal logging.</span></div>
-<div class="line"><a id="l00594" name="l00594"></a><span class="lineno">  594</span><span class="comment"> * Internal Flow code specifies members thereof when indicating the log component for each particular piece of</span></div>
-<div class="line"><a id="l00595" name="l00595"></a><span class="lineno">  595</span><span class="comment"> * logging code.  Flow user specifies it, albeit very rarely, when configuring their program&#39;s logging</span></div>
-<div class="line"><a id="l00596" name="l00596"></a><span class="lineno">  596</span><span class="comment"> * such as via flow::log::Config::init_component_to_union_idx_mapping() and flow::log::Config::init_component_names().</span></div>
-<div class="line"><a id="l00597" name="l00597"></a><span class="lineno">  597</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00598" name="l00598"></a><span class="lineno">  598</span><span class="comment"> * If you are reading this in Doxygen-generated output (likely a web page), be aware that the individual</span></div>
-<div class="line"><a id="l00599" name="l00599"></a><span class="lineno">  599</span><span class="comment"> * `enum` values are not documented right here, because flow::log auto-generates those via certain macro</span></div>
-<div class="line"><a id="l00600" name="l00600"></a><span class="lineno">  600</span><span class="comment"> * magic, and Doxygen cannot understand what is happening.  However, you will find the same information</span></div>
-<div class="line"><a id="l00601" name="l00601"></a><span class="lineno">  601</span><span class="comment"> * directly in the source file `log_component_enum_declare.macros.hpp` (if the latter is clickable, click to see</span></div>
-<div class="line"><a id="l00602" name="l00602"></a><span class="lineno">  602</span><span class="comment"> * the source).</span></div>
-<div class="line"><a id="l00603" name="l00603"></a><span class="lineno">  603</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00604" name="l00604"></a><span class="lineno">  604</span><span class="comment"> * ### Details regarding overall log system init in user program ###</span></div>
-<div class="line"><a id="l00605" name="l00605"></a><span class="lineno">  605</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00606" name="l00606"></a><span class="lineno">  606</span><span class="comment"> * The following is a less formal reiteration of flow::log::Config documentation and is presented here -- even</span></div>
-<div class="line"><a id="l00607" name="l00607"></a><span class="lineno">  607</span><span class="comment"> * though technically in the present context Flow itself is nothing more than yet another module that uses</span></div>
-<div class="line"><a id="l00608" name="l00608"></a><span class="lineno">  608</span><span class="comment"> * flow::log for its own logging -- for your convenience.  Flow&#39;s own logging can be seen as the canonical/model</span></div>
-<div class="line"><a id="l00609" name="l00609"></a><span class="lineno">  609</span><span class="comment"> * use of flow::log, so other flow::log users can read this to learn the basics of how to configure loggingg.</span></div>
-<div class="line"><a id="l00610" name="l00610"></a><span class="lineno">  610</span><span class="comment"> * That&#39;s why we re-explain this info here, in brief form:</span></div>
-<div class="line"><a id="l00611" name="l00611"></a><span class="lineno">  611</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00612" name="l00612"></a><span class="lineno">  612</span><span class="comment"> * Your program -- that uses the present library -- can register this `enum` in order for these components</span></div>
-<div class="line"><a id="l00613" name="l00613"></a><span class="lineno">  613</span><span class="comment"> * (and particularly the log messages that specify them via flow::log::Log_context or</span></div>
-<div class="line"><a id="l00614" name="l00614"></a><span class="lineno">  614</span><span class="comment"> * FLOW_LOG_SET_CONTEXT()) to be logged properly in that program, co-existing correctly with other code bases</span></div>
-<div class="line"><a id="l00615" name="l00615"></a><span class="lineno">  615</span><span class="comment"> * that use flow::log for logging.  Typically one constructs a `flow::log::Config C` and then at some point</span></div>
-<div class="line"><a id="l00616" name="l00616"></a><span class="lineno">  616</span><span class="comment"> * before logging begins:</span></div>
-<div class="line"><a id="l00617" name="l00617"></a><span class="lineno">  617</span><span class="comment"> *   - For each `enum class X_log_component` (note that `Flow_log_component` is only one such `enum class`):</span></div>
-<div class="line"><a id="l00618" name="l00618"></a><span class="lineno">  618</span><span class="comment"> *     -# `C.init_component_to_union_idx_mapping&lt;X_log_component&gt;(K)`, where `K` is a distinct numeric offset,</span></div>
-<div class="line"><a id="l00619" name="l00619"></a><span class="lineno">  619</span><span class="comment"> *         maybe multiple of 1000.</span></div>
-<div class="line"><a id="l00620" name="l00620"></a><span class="lineno">  620</span><span class="comment"> *     -# `C.init_component_names&lt;X_log_component&gt;(S_X_LOG_COMPONENT_NAME_MAP, ..., &quot;X-&quot;)`.</span></div>
-<div class="line"><a id="l00621" name="l00621"></a><span class="lineno">  621</span><span class="comment"> *        - Note the &quot;X-&quot; prefix, allowing one to prepend a namespace-like string prefix to avoid any output and config</span></div>
-<div class="line"><a id="l00622" name="l00622"></a><span class="lineno">  622</span><span class="comment"> *          clashing.</span></div>
-<div class="line"><a id="l00623" name="l00623"></a><span class="lineno">  623</span><span class="comment"> *     -# `C.configure_default_verbosity(Sev::S)`, where `S` is some default max severity.</span></div>
-<div class="line"><a id="l00624" name="l00624"></a><span class="lineno">  624</span><span class="comment"> *     -# For each component `M` for which one desires a different max severity `S`:</span></div>
-<div class="line"><a id="l00625" name="l00625"></a><span class="lineno">  625</span><span class="comment"> *        - `C.configure_component_verbosity&lt;X_log_component&gt;(Sev::S, X_log_component::M)`. OR:</span></div>
-<div class="line"><a id="l00626" name="l00626"></a><span class="lineno">  626</span><span class="comment"> *        - `C.configure_component_verbosity_by_name(Sev::S, &quot;X-M&quot;)`.</span></div>
-<div class="line"><a id="l00627" name="l00627"></a><span class="lineno">  627</span><span class="comment"> *   - Apply `C` to the flow::log::Logger or `Logger`s you want to affect.</span></div>
-<div class="line"><a id="l00628" name="l00628"></a><span class="lineno">  628</span><span class="comment"> *   - Pass the `Logger` or `Logger`s to appropriate APIs that want to log.</span></div>
-<div class="line"><a id="l00629" name="l00629"></a><span class="lineno">  629</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00630" name="l00630"></a><span class="lineno">  630</span><span class="comment"> * One could make changes after logging has begun, but that&#39;s a separate topic.</span></div>
-<div class="line"><a id="l00631" name="l00631"></a><span class="lineno">  631</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00632" name="l00632"></a><span class="lineno"><a class="line" href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">  632</a></span><span class="keyword">enum class</span> <a class="code hl_enumeration" href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">Flow_log_component</a></div>
-<div class="line"><a id="l00633" name="l00633"></a><span class="lineno">  633</span>{<span class="comment"></span></div>
-<div class="line"><a id="l00634" name="l00634"></a><span class="lineno">  634</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00635" name="l00635"></a><span class="lineno">  635</span><span class="comment">   * CAUTION -- see flow::Flow_log_component doc header for directions to find actual members of this</span></div>
-<div class="line"><a id="l00636" name="l00636"></a><span class="lineno">  636</span><span class="comment">   * `enum class`.  This entry is a placeholder for Doxygen purposes only, because of the macro magic involved</span></div>
-<div class="line"><a id="l00637" name="l00637"></a><span class="lineno">  637</span><span class="comment">   * in generating the actual `enum class`.</span></div>
-<div class="line"><a id="l00638" name="l00638"></a><span class="lineno">  638</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00639" name="l00639"></a><span class="lineno">  639</span>  <a class="code hl_enumvalue" href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7cea6fba12db09e5bebfaa04f6372c41c2cf">S_END_SENTINEL</a></div>
-<div class="line"><a id="l00640" name="l00640"></a><span class="lineno">  640</span>};</div>
-<div class="line"><a id="l00641" name="l00641"></a><span class="lineno">  641</span><span class="comment"></span> </div>
-<div class="line"><a id="l00642" name="l00642"></a><span class="lineno">  642</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00643" name="l00643"></a><span class="lineno">  643</span><span class="comment"> * The map generated by flow::log macro magic that maps each enumerated value in flow::Flow_log_component to its</span></div>
-<div class="line"><a id="l00644" name="l00644"></a><span class="lineno">  644</span><span class="comment"> * string representation as used in log output and verbosity config.  Flow user specifies, albeit very rarely,</span></div>
-<div class="line"><a id="l00645" name="l00645"></a><span class="lineno">  645</span><span class="comment"> * when configuring their program&#39;s logging via flow::log::Config::init_component_names().</span></div>
-<div class="line"><a id="l00646" name="l00646"></a><span class="lineno">  646</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00647" name="l00647"></a><span class="lineno">  647</span><span class="comment"> * As a Flow user, you can informally assume that if the component `enum` member is called `S_SOME_NAME`, then</span></div>
-<div class="line"><a id="l00648" name="l00648"></a><span class="lineno">  648</span><span class="comment"> * its string counterpart in this map will be auto-computed to be `&quot;SOME_NAME&quot;` (optionally prepended with a</span></div>
-<div class="line"><a id="l00649" name="l00649"></a><span class="lineno">  649</span><span class="comment"> * prefix as supplied to flow::log::Config::init_component_names()).  This is achieved via flow::log macro magic.</span></div>
-<div class="line"><a id="l00650" name="l00650"></a><span class="lineno">  650</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00651" name="l00651"></a><span class="lineno">  651</span><span class="comment"> * @see flow::Flow_log_component first.</span></div>
-<div class="line"><a id="l00652" name="l00652"></a><span class="lineno">  652</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00653" name="l00653"></a><span class="lineno">  653</span><span class="keyword">extern</span> <span class="keyword">const</span> boost::unordered_multimap&lt;Flow_log_component, std::string&gt; <a class="code hl_variable" href="namespaceflow.html#abef6a1249edc3dd6c7f650235a84bfe4">S_FLOW_LOG_COMPONENT_NAME_MAP</a>;</div>
-<div class="line"><a id="l00654" name="l00654"></a><span class="lineno">  654</span> </div>
-<div class="line"><a id="l00655" name="l00655"></a><span class="lineno">  655</span><span class="preprocessor">#endif </span><span class="comment">// FLOW_DOXYGEN_ONLY</span></div>
-<div class="line"><a id="l00656" name="l00656"></a><span class="lineno">  656</span> </div>
-<div class="line"><a id="l00657" name="l00657"></a><span class="lineno">  657</span><span class="comment">// Template implementations.</span></div>
-<div class="line"><a id="l00658" name="l00658"></a><span class="lineno">  658</span> </div>
-<div class="line"><a id="l00659" name="l00659"></a><span class="lineno">  659</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Result, <span class="keyword">typename</span>... Args&gt;</div>
-<div class="line"><a id="l00660" name="l00660"></a><span class="lineno"><a class="line" href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html#a2d28043c36fcccd7d888b7f602678f7e">  660</a></span><span class="keywordtype">bool</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;Result (Args...)&gt;::empty() const noexcept</div>
-<div class="line"><a id="l00661" name="l00661"></a><span class="lineno">  661</span>{</div>
-<div class="line"><a id="l00662" name="l00662"></a><span class="lineno">  662</span>  <span class="keywordflow">return</span> !*<span class="keyword">this</span>;</div>
-<div class="line"><a id="l00663" name="l00663"></a><span class="lineno">  663</span>}</div>
-<div class="line"><a id="l00664" name="l00664"></a><span class="lineno">  664</span> </div>
-<div class="line"><a id="l00665" name="l00665"></a><span class="lineno">  665</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Result, <span class="keyword">typename</span>... Args&gt;</div>
-<div class="line"><a id="l00666" name="l00666"></a><span class="lineno"><a class="line" href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html#a1965db8003904aaea686c284b2274057">  666</a></span><span class="keywordtype">void</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;Result (Args...)&gt;::clear() noexcept</div>
-<div class="line"><a id="l00667" name="l00667"></a><span class="lineno">  667</span>{</div>
-<div class="line"><a id="l00668" name="l00668"></a><span class="lineno">  668</span>  *<span class="keyword">this</span> = {};</div>
-<div class="line"><a id="l00669" name="l00669"></a><span class="lineno">  669</span>}</div>
-<div class="line"><a id="l00670" name="l00670"></a><span class="lineno">  670</span> </div>
-<div class="line"><a id="l00671" name="l00671"></a><span class="lineno">  671</span>} <span class="comment">// namespace flow</span></div>
-<div class="ttc" id="aclassflow_1_1Function_3_01Result_07Args_8_8_8_08_4_html_ac9d820d29d397987a6a97469f39e367e"><div class="ttname"><a href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html#ac9d820d29d397987a6a97469f39e367e">flow::Function&lt; Result(Args...)&gt;::Function_base</a></div><div class="ttdeci">std::function&lt; Result(Args...)&gt; Function_base</div><div class="ttdoc">Short-hand for the base. We add no data of our own in this subclass, just a handful of APIs.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00561">common.hpp:561</a></div></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span><span class="comment">  /// Inherit all the constructors from #Function_base.  Add none of our own.</span></div>
+<div class="line"><a id="l00571" name="l00571"></a><span class="lineno">  571</span><span class="comment"></span>  <span class="keyword">using </span>Function_base::Function_base;</div>
+<div class="line"><a id="l00572" name="l00572"></a><span class="lineno">  572</span> </div>
+<div class="line"><a id="l00573" name="l00573"></a><span class="lineno">  573</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00574" name="l00574"></a><span class="lineno">  574</span><span class="comment"></span> </div>
+<div class="line"><a id="l00575" name="l00575"></a><span class="lineno">  575</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00576" name="l00576"></a><span class="lineno">  576</span><span class="comment">   * Returns `!bool(*this)`; i.e., `true` if and only if `*this` has no target.</span></div>
+<div class="line"><a id="l00577" name="l00577"></a><span class="lineno">  577</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00578" name="l00578"></a><span class="lineno">  578</span><span class="comment">   * ### Rationale ###</span></div>
+<div class="line"><a id="l00579" name="l00579"></a><span class="lineno">  579</span><span class="comment">   * Provided due to ubuiquity of code that uses `boost::function::empty()` which `std::function` lacks.</span></div>
+<div class="line"><a id="l00580" name="l00580"></a><span class="lineno">  580</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00581" name="l00581"></a><span class="lineno">  581</span><span class="comment">   * @return See above.</span></div>
+<div class="line"><a id="l00582" name="l00582"></a><span class="lineno">  582</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00583" name="l00583"></a><span class="lineno">  583</span>  <span class="keywordtype">bool</span> empty() const noexcept;</div>
+<div class="line"><a id="l00584" name="l00584"></a><span class="lineno">  584</span><span class="comment"></span> </div>
+<div class="line"><a id="l00585" name="l00585"></a><span class="lineno">  585</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00586" name="l00586"></a><span class="lineno">  586</span><span class="comment">   * Makes `*this` lack any target; i.e., makes it equal to a default-constructed object of this type, so that</span></div>
+<div class="line"><a id="l00587" name="l00587"></a><span class="lineno">  587</span><span class="comment">   * `empty() == true` is a post-condition.</span></div>
+<div class="line"><a id="l00588" name="l00588"></a><span class="lineno">  588</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00589" name="l00589"></a><span class="lineno">  589</span><span class="comment">   * ### Rationale ###</span></div>
+<div class="line"><a id="l00590" name="l00590"></a><span class="lineno">  590</span><span class="comment">   * Provided due to ubuiquity of code that uses `boost::function::clear()` which `std::function` lacks.</span></div>
+<div class="line"><a id="l00591" name="l00591"></a><span class="lineno">  591</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00592" name="l00592"></a><span class="lineno">  592</span>  <span class="keywordtype">void</span> clear() noexcept;</div>
+<div class="line"><a id="l00593" name="l00593"></a><span class="lineno">  593</span>}; <span class="comment">// class Function&lt;Result (Args...)&gt;</span></div>
+<div class="line"><a id="l00594" name="l00594"></a><span class="lineno">  594</span> </div>
+<div class="line"><a id="l00595" name="l00595"></a><span class="lineno">  595</span><span class="preprocessor">#ifdef FLOW_DOXYGEN_ONLY </span><span class="comment">// Actual compilation will ignore the below; but Doxygen will scan it and generate docs.</span></div>
+<div class="line"><a id="l00596" name="l00596"></a><span class="lineno">  596</span><span class="comment"></span> </div>
+<div class="line"><a id="l00597" name="l00597"></a><span class="lineno">  597</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00598" name="l00598"></a><span class="lineno">  598</span><span class="comment"> * The flow::log::Component payload enumeration comprising various log components used by Flow&#39;s own internal logging.</span></div>
+<div class="line"><a id="l00599" name="l00599"></a><span class="lineno">  599</span><span class="comment"> * Internal Flow code specifies members thereof when indicating the log component for each particular piece of</span></div>
+<div class="line"><a id="l00600" name="l00600"></a><span class="lineno">  600</span><span class="comment"> * logging code.  Flow user specifies it, albeit very rarely, when configuring their program&#39;s logging</span></div>
+<div class="line"><a id="l00601" name="l00601"></a><span class="lineno">  601</span><span class="comment"> * such as via flow::log::Config::init_component_to_union_idx_mapping() and flow::log::Config::init_component_names().</span></div>
+<div class="line"><a id="l00602" name="l00602"></a><span class="lineno">  602</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00603" name="l00603"></a><span class="lineno">  603</span><span class="comment"> * If you are reading this in Doxygen-generated output (likely a web page), be aware that the individual</span></div>
+<div class="line"><a id="l00604" name="l00604"></a><span class="lineno">  604</span><span class="comment"> * `enum` values are not documented right here, because flow::log auto-generates those via certain macro</span></div>
+<div class="line"><a id="l00605" name="l00605"></a><span class="lineno">  605</span><span class="comment"> * magic, and Doxygen cannot understand what is happening.  However, you will find the same information</span></div>
+<div class="line"><a id="l00606" name="l00606"></a><span class="lineno">  606</span><span class="comment"> * directly in the source file `log_component_enum_declare.macros.hpp` (if the latter is clickable, click to see</span></div>
+<div class="line"><a id="l00607" name="l00607"></a><span class="lineno">  607</span><span class="comment"> * the source).</span></div>
+<div class="line"><a id="l00608" name="l00608"></a><span class="lineno">  608</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00609" name="l00609"></a><span class="lineno">  609</span><span class="comment"> * ### Details regarding overall log system init in user program ###</span></div>
+<div class="line"><a id="l00610" name="l00610"></a><span class="lineno">  610</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00611" name="l00611"></a><span class="lineno">  611</span><span class="comment"> * The following is a less formal reiteration of flow::log::Config documentation and is presented here -- even</span></div>
+<div class="line"><a id="l00612" name="l00612"></a><span class="lineno">  612</span><span class="comment"> * though technically in the present context Flow itself is nothing more than yet another module that uses</span></div>
+<div class="line"><a id="l00613" name="l00613"></a><span class="lineno">  613</span><span class="comment"> * flow::log for its own logging -- for your convenience.  Flow&#39;s own logging can be seen as the canonical/model</span></div>
+<div class="line"><a id="l00614" name="l00614"></a><span class="lineno">  614</span><span class="comment"> * use of flow::log, so other flow::log users can read this to learn the basics of how to configure loggingg.</span></div>
+<div class="line"><a id="l00615" name="l00615"></a><span class="lineno">  615</span><span class="comment"> * That&#39;s why we re-explain this info here, in brief form:</span></div>
+<div class="line"><a id="l00616" name="l00616"></a><span class="lineno">  616</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00617" name="l00617"></a><span class="lineno">  617</span><span class="comment"> * Your program -- that uses the present library -- can register this `enum` in order for these components</span></div>
+<div class="line"><a id="l00618" name="l00618"></a><span class="lineno">  618</span><span class="comment"> * (and particularly the log messages that specify them via flow::log::Log_context or</span></div>
+<div class="line"><a id="l00619" name="l00619"></a><span class="lineno">  619</span><span class="comment"> * FLOW_LOG_SET_CONTEXT()) to be logged properly in that program, co-existing correctly with other code bases</span></div>
+<div class="line"><a id="l00620" name="l00620"></a><span class="lineno">  620</span><span class="comment"> * that use flow::log for logging.  Typically one constructs a `flow::log::Config C` and then at some point</span></div>
+<div class="line"><a id="l00621" name="l00621"></a><span class="lineno">  621</span><span class="comment"> * before logging begins:</span></div>
+<div class="line"><a id="l00622" name="l00622"></a><span class="lineno">  622</span><span class="comment"> *   - For each `enum class X_log_component` (note that `Flow_log_component` is only one such `enum class`):</span></div>
+<div class="line"><a id="l00623" name="l00623"></a><span class="lineno">  623</span><span class="comment"> *     -# `C.init_component_to_union_idx_mapping&lt;X_log_component&gt;(K)`, where `K` is a distinct numeric offset,</span></div>
+<div class="line"><a id="l00624" name="l00624"></a><span class="lineno">  624</span><span class="comment"> *         maybe multiple of 1000.</span></div>
+<div class="line"><a id="l00625" name="l00625"></a><span class="lineno">  625</span><span class="comment"> *     -# `C.init_component_names&lt;X_log_component&gt;(S_X_LOG_COMPONENT_NAME_MAP, ..., &quot;X-&quot;)`.</span></div>
+<div class="line"><a id="l00626" name="l00626"></a><span class="lineno">  626</span><span class="comment"> *        - Note the &quot;X-&quot; prefix, allowing one to prepend a namespace-like string prefix to avoid any output and config</span></div>
+<div class="line"><a id="l00627" name="l00627"></a><span class="lineno">  627</span><span class="comment"> *          clashing.</span></div>
+<div class="line"><a id="l00628" name="l00628"></a><span class="lineno">  628</span><span class="comment"> *     -# `C.configure_default_verbosity(Sev::S)`, where `S` is some default max severity.</span></div>
+<div class="line"><a id="l00629" name="l00629"></a><span class="lineno">  629</span><span class="comment"> *     -# For each component `M` for which one desires a different max severity `S`:</span></div>
+<div class="line"><a id="l00630" name="l00630"></a><span class="lineno">  630</span><span class="comment"> *        - `C.configure_component_verbosity&lt;X_log_component&gt;(Sev::S, X_log_component::M)`. OR:</span></div>
+<div class="line"><a id="l00631" name="l00631"></a><span class="lineno">  631</span><span class="comment"> *        - `C.configure_component_verbosity_by_name(Sev::S, &quot;X-M&quot;)`.</span></div>
+<div class="line"><a id="l00632" name="l00632"></a><span class="lineno">  632</span><span class="comment"> *   - Apply `C` to the flow::log::Logger or `Logger`s you want to affect.</span></div>
+<div class="line"><a id="l00633" name="l00633"></a><span class="lineno">  633</span><span class="comment"> *   - Pass the `Logger` or `Logger`s to appropriate APIs that want to log.</span></div>
+<div class="line"><a id="l00634" name="l00634"></a><span class="lineno">  634</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00635" name="l00635"></a><span class="lineno">  635</span><span class="comment"> * One could make changes after logging has begun, but that&#39;s a separate topic.</span></div>
+<div class="line"><a id="l00636" name="l00636"></a><span class="lineno">  636</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00637" name="l00637"></a><span class="lineno"><a class="line" href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">  637</a></span><span class="keyword">enum class</span> <a class="code hl_enumeration" href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">Flow_log_component</a></div>
+<div class="line"><a id="l00638" name="l00638"></a><span class="lineno">  638</span>{<span class="comment"></span></div>
+<div class="line"><a id="l00639" name="l00639"></a><span class="lineno">  639</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00640" name="l00640"></a><span class="lineno">  640</span><span class="comment">   * CAUTION -- see flow::Flow_log_component doc header for directions to find actual members of this</span></div>
+<div class="line"><a id="l00641" name="l00641"></a><span class="lineno">  641</span><span class="comment">   * `enum class`.  This entry is a placeholder for Doxygen purposes only, because of the macro magic involved</span></div>
+<div class="line"><a id="l00642" name="l00642"></a><span class="lineno">  642</span><span class="comment">   * in generating the actual `enum class`.</span></div>
+<div class="line"><a id="l00643" name="l00643"></a><span class="lineno">  643</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00644" name="l00644"></a><span class="lineno">  644</span>  <a class="code hl_enumvalue" href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7cea6fba12db09e5bebfaa04f6372c41c2cf">S_END_SENTINEL</a></div>
+<div class="line"><a id="l00645" name="l00645"></a><span class="lineno">  645</span>};</div>
+<div class="line"><a id="l00646" name="l00646"></a><span class="lineno">  646</span><span class="comment"></span> </div>
+<div class="line"><a id="l00647" name="l00647"></a><span class="lineno">  647</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00648" name="l00648"></a><span class="lineno">  648</span><span class="comment"> * The map generated by flow::log macro magic that maps each enumerated value in flow::Flow_log_component to its</span></div>
+<div class="line"><a id="l00649" name="l00649"></a><span class="lineno">  649</span><span class="comment"> * string representation as used in log output and verbosity config.  Flow user specifies, albeit very rarely,</span></div>
+<div class="line"><a id="l00650" name="l00650"></a><span class="lineno">  650</span><span class="comment"> * when configuring their program&#39;s logging via flow::log::Config::init_component_names().</span></div>
+<div class="line"><a id="l00651" name="l00651"></a><span class="lineno">  651</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00652" name="l00652"></a><span class="lineno">  652</span><span class="comment"> * As a Flow user, you can informally assume that if the component `enum` member is called `S_SOME_NAME`, then</span></div>
+<div class="line"><a id="l00653" name="l00653"></a><span class="lineno">  653</span><span class="comment"> * its string counterpart in this map will be auto-computed to be `&quot;SOME_NAME&quot;` (optionally prepended with a</span></div>
+<div class="line"><a id="l00654" name="l00654"></a><span class="lineno">  654</span><span class="comment"> * prefix as supplied to flow::log::Config::init_component_names()).  This is achieved via flow::log macro magic.</span></div>
+<div class="line"><a id="l00655" name="l00655"></a><span class="lineno">  655</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00656" name="l00656"></a><span class="lineno">  656</span><span class="comment"> * @see flow::Flow_log_component first.</span></div>
+<div class="line"><a id="l00657" name="l00657"></a><span class="lineno">  657</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00658" name="l00658"></a><span class="lineno">  658</span><span class="keyword">extern</span> <span class="keyword">const</span> boost::unordered_multimap&lt;Flow_log_component, std::string&gt; <a class="code hl_variable" href="namespaceflow.html#abef6a1249edc3dd6c7f650235a84bfe4">S_FLOW_LOG_COMPONENT_NAME_MAP</a>;</div>
+<div class="line"><a id="l00659" name="l00659"></a><span class="lineno">  659</span> </div>
+<div class="line"><a id="l00660" name="l00660"></a><span class="lineno">  660</span><span class="preprocessor">#endif </span><span class="comment">// FLOW_DOXYGEN_ONLY</span></div>
+<div class="line"><a id="l00661" name="l00661"></a><span class="lineno">  661</span> </div>
+<div class="line"><a id="l00662" name="l00662"></a><span class="lineno">  662</span><span class="comment">// Template implementations.</span></div>
+<div class="line"><a id="l00663" name="l00663"></a><span class="lineno">  663</span> </div>
+<div class="line"><a id="l00664" name="l00664"></a><span class="lineno">  664</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Result, <span class="keyword">typename</span>... Args&gt;</div>
+<div class="line"><a id="l00665" name="l00665"></a><span class="lineno"><a class="line" href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html#a2d28043c36fcccd7d888b7f602678f7e">  665</a></span><span class="keywordtype">bool</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;Result (Args...)&gt;::empty() const noexcept</div>
+<div class="line"><a id="l00666" name="l00666"></a><span class="lineno">  666</span>{</div>
+<div class="line"><a id="l00667" name="l00667"></a><span class="lineno">  667</span>  <span class="keywordflow">return</span> !*<span class="keyword">this</span>;</div>
+<div class="line"><a id="l00668" name="l00668"></a><span class="lineno">  668</span>}</div>
+<div class="line"><a id="l00669" name="l00669"></a><span class="lineno">  669</span> </div>
+<div class="line"><a id="l00670" name="l00670"></a><span class="lineno">  670</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Result, <span class="keyword">typename</span>... Args&gt;</div>
+<div class="line"><a id="l00671" name="l00671"></a><span class="lineno"><a class="line" href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html#a1965db8003904aaea686c284b2274057">  671</a></span><span class="keywordtype">void</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;Result (Args...)&gt;::clear() noexcept</div>
+<div class="line"><a id="l00672" name="l00672"></a><span class="lineno">  672</span>{</div>
+<div class="line"><a id="l00673" name="l00673"></a><span class="lineno">  673</span>  *<span class="keyword">this</span> = {};</div>
+<div class="line"><a id="l00674" name="l00674"></a><span class="lineno">  674</span>}</div>
+<div class="line"><a id="l00675" name="l00675"></a><span class="lineno">  675</span> </div>
+<div class="line"><a id="l00676" name="l00676"></a><span class="lineno">  676</span>} <span class="comment">// namespace flow</span></div>
+<div class="ttc" id="aclassflow_1_1Function_3_01Result_07Args_8_8_8_08_4_html_ac9d820d29d397987a6a97469f39e367e"><div class="ttname"><a href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html#ac9d820d29d397987a6a97469f39e367e">flow::Function&lt; Result(Args...)&gt;::Function_base</a></div><div class="ttdeci">std::function&lt; Result(Args...)&gt; Function_base</div><div class="ttdoc">Short-hand for the base. We add no data of our own in this subclass, just a handful of APIs.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00566">common.hpp:566</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="adetail_2common_8hpp_html"><div class="ttname"><a href="detail_2common_8hpp.html">common.hpp</a></div></div>
 <div class="ttc" id="anamespaceflow_html"><div class="ttname"><a href="namespaceflow.html">flow</a></div><div class="ttdoc">Catch-all namespace for the Flow project: A collection of various production-quality modules written ...</div><div class="ttdef"><b>Definition:</b> <a href="async__fwd_8hpp_source.html#l00074">async_fwd.hpp:75</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
 <div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7cea6fba12db09e5bebfaa04f6372c41c2cf"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7cea6fba12db09e5bebfaa04f6372c41c2cf">flow::Flow_log_component::S_END_SENTINEL</a></div><div class="ttdeci">@ S_END_SENTINEL</div><div class="ttdoc">CAUTION – see flow::Flow_log_component doc header for directions to find actual members of this enum ...</div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a8f2e48761f9ca3ffcaa29872078bbf00"><div class="ttname"><a href="namespaceflow.html#a8f2e48761f9ca3ffcaa29872078bbf00">flow::Fine_clock</a></div><div class="ttdeci">boost::chrono::high_resolution_clock Fine_clock</div><div class="ttdoc">Clock used for delicate time measurements, such that the now() method gets the current time relative ...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00405">common.hpp:405</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a96b8a241b21c907e96cb91f4bf868446"><div class="ttname"><a href="namespaceflow.html#a96b8a241b21c907e96cb91f4bf868446">flow::int8_t</a></div><div class="ttdeci">signed char int8_t</div><div class="ttdoc">Signed byte. Prefer to use uint8_t when representing binary data. This is 8 bits on all modern system...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00388">common.hpp:388</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a8f2e48761f9ca3ffcaa29872078bbf00"><div class="ttname"><a href="namespaceflow.html#a8f2e48761f9ca3ffcaa29872078bbf00">flow::Fine_clock</a></div><div class="ttdeci">boost::chrono::high_resolution_clock Fine_clock</div><div class="ttdoc">Clock used for delicate time measurements, such that the now() method gets the current time relative ...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00410">common.hpp:410</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a96b8a241b21c907e96cb91f4bf868446"><div class="ttname"><a href="namespaceflow.html#a96b8a241b21c907e96cb91f4bf868446">flow::int8_t</a></div><div class="ttdeci">signed char int8_t</div><div class="ttdoc">Signed byte. Prefer to use uint8_t when representing binary data. This is 8 bits on all modern system...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00393">common.hpp:393</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
 <div class="ttc" id="anamespaceflow_html_abef6a1249edc3dd6c7f650235a84bfe4"><div class="ttname"><a href="namespaceflow.html#abef6a1249edc3dd6c7f650235a84bfe4">flow::S_FLOW_LOG_COMPONENT_NAME_MAP</a></div><div class="ttdeci">const boost::unordered_multimap&lt; Flow_log_component, std::string &gt; S_FLOW_LOG_COMPONENT_NAME_MAP</div><div class="ttdoc">The map generated by flow::log macro magic that maps each enumerated value in flow::Flow_log_componen...</div></div>
-<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00386">common.hpp:386</a></div></div>
+<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00391">common.hpp:391</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/concurrent__task__loop_8cpp.html b/doc/flow_doc/generated/html_full/concurrent__task__loop_8cpp.html
index 65bd2f948..8c5a643ae 100644
--- a/doc/flow_doc/generated/html_full/concurrent__task__loop_8cpp.html
+++ b/doc/flow_doc/generated/html_full/concurrent__task__loop_8cpp.html
@@ -99,7 +99,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/concurrent__task__loop_8cpp_source.html b/doc/flow_doc/generated/html_full/concurrent__task__loop_8cpp_source.html
index f1fafb30f..417ddefdb 100644
--- a/doc/flow_doc/generated/html_full/concurrent__task__loop_8cpp_source.html
+++ b/doc/flow_doc/generated/html_full/concurrent__task__loop_8cpp_source.html
@@ -312,13 +312,13 @@
 <div class="ttc" id="anamespaceflow_1_1async_html"><div class="ttname"><a href="namespaceflow_1_1async.html">flow::async</a></div><div class="ttdoc">Flow module containing tools enabling multi-threaded event loops operating under the asynchronous-tas...</div><div class="ttdef"><b>Definition:</b> <a href="async__fwd_8hpp_source.html#l00074">async_fwd.hpp:75</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1async_html_a02afaeea759dfc180890e376db79530e"><div class="ttname"><a href="namespaceflow_1_1async.html#a02afaeea759dfc180890e376db79530e">flow::async::optimize_pinning_in_thread_pool</a></div><div class="ttdeci">void optimize_pinning_in_thread_pool(flow::log::Logger *logger_ptr, const std::vector&lt; util::Thread * &gt; &amp;threads_in_pool, bool est_hw_core_sharing_helps_algo, bool est_hw_core_pinning_helps_algo, bool hw_threads_is_grouping_collated)</div><div class="ttdoc">Assuming the same situation as documented for optimal_worker_thread_count_per_pool(),...</div><div class="ttdef"><b>Definition:</b> <a href="concurrent__task__loop_8cpp_source.html#l00078">concurrent_task_loop.cpp:78</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1async_html_ac2f32e9fc685e2e9013900b100321fff"><div class="ttname"><a href="namespaceflow_1_1async.html#ac2f32e9fc685e2e9013900b100321fff">flow::async::optimal_worker_thread_count_per_pool</a></div><div class="ttdeci">unsigned int optimal_worker_thread_count_per_pool(flow::log::Logger *logger_ptr, bool est_hw_core_sharing_helps_algo)</div><div class="ttdoc">Assuming a planned thread pool will be receiving ~symmetrical load, and its UX-affecting (in particul...</div><div class="ttdef"><b>Definition:</b> <a href="concurrent__task__loop_8cpp_source.html#l00035">concurrent_task_loop.cpp:35</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a685b86585da2fa5186f51854e7ae1561"><div class="ttname"><a href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">flow::util::ostream_op_string</a></div><div class="ttdeci">std::string ostream_op_string(T const &amp;... ostream_args)</div><div class="ttdoc">Equivalent to ostream_op_to_string() but returns a new string by value instead of writing to the call...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00356">util.hpp:356</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a685b86585da2fa5186f51854e7ae1561"><div class="ttname"><a href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">flow::util::ostream_op_string</a></div><div class="ttdeci">std::string ostream_op_string(T const &amp;... ostream_args)</div><div class="ttdoc">Equivalent to ostream_op_to_string() but returns a new string by value instead of writing to the call...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00381">util.hpp:381</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af030c3119f060a9630afca31098a78a5"><div class="ttname"><a href="namespaceflow_1_1util.html#af030c3119f060a9630afca31098a78a5">flow::util::Thread</a></div><div class="ttdeci">boost::thread Thread</div><div class="ttdoc">Short-hand for standard thread class.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00078">util_fwd.hpp:78</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/concurrent__task__loop_8hpp.html b/doc/flow_doc/generated/html_full/concurrent__task__loop_8hpp.html
index 5aea37664..9fb9117b6 100644
--- a/doc/flow_doc/generated/html_full/concurrent__task__loop_8hpp.html
+++ b/doc/flow_doc/generated/html_full/concurrent__task__loop_8hpp.html
@@ -159,7 +159,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#abdde86e8129cc056ef4c7dc2
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/concurrent__task__loop_8hpp_source.html b/doc/flow_doc/generated/html_full/concurrent__task__loop_8hpp_source.html
index ae8ce509f..4b18aabd1 100644
--- a/doc/flow_doc/generated/html_full/concurrent__task__loop_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/concurrent__task__loop_8hpp_source.html
@@ -844,7 +844,7 @@
 <div class="line"><a id="l00772" name="l00772"></a><span class="lineno">  772</span> </div>
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-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1async_1_1Concurrent__task__loop_html"><div class="ttname"><a href="classflow_1_1async_1_1Concurrent__task__loop.html">flow::async::Concurrent_task_loop</a></div><div class="ttdoc">The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...</div><div class="ttdef"><b>Definition:</b> <a href="concurrent__task__loop_8hpp_source.html#l00322">concurrent_task_loop.hpp:324</a></div></div>
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@@ -871,15 +871,15 @@
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-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
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 <div class="ttc" id="autil_2util_8hpp_html"><div class="ttname"><a href="util_2util_8hpp.html">util.hpp</a></div></div>
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/config_8cpp.html b/doc/flow_doc/generated/html_full/config_8cpp.html
index f4047fd0e..ec28fba74 100644
--- a/doc/flow_doc/generated/html_full/config_8cpp.html
+++ b/doc/flow_doc/generated/html_full/config_8cpp.html
@@ -89,7 +89,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/config_8cpp_source.html b/doc/flow_doc/generated/html_full/config_8cpp_source.html
index be3112adf..f108116f7 100644
--- a/doc/flow_doc/generated/html_full/config_8cpp_source.html
+++ b/doc/flow_doc/generated/html_full/config_8cpp_source.html
@@ -380,7 +380,7 @@
 <div class="ttc" id="aclassflow_1_1log_1_1Config_html_ae447f7751eb63baefb04fdeeeff95fda"><div class="ttname"><a href="classflow_1_1log_1_1Config.html#ae447f7751eb63baefb04fdeeeff95fda">flow::log::Config::m_component_cfgs_by_payload_type</a></div><div class="ttdeci">Component_payload_type_to_cfg_map m_component_cfgs_by_payload_type</div><div class="ttdoc">Fast-lookup map from distinct Component_payload type to the config for that component enum.</div><div class="ttdef"><b>Definition:</b> <a href="config_8hpp_source.html#l00862">config.hpp:862</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Config_html_aee6877cec4b070e18a40090f080e76ca"><div class="ttname"><a href="classflow_1_1log_1_1Config.html#aee6877cec4b070e18a40090f080e76ca">flow::log::Config::store_severity_by_component</a></div><div class="ttdeci">void store_severity_by_component(component_union_idx_t component_union_idx, raw_sev_t most_verbose_sev_or_none)</div><div class="ttdoc">Helper that for the given flat-union-component-index saves the given per-component verbosity,...</div><div class="ttdef"><b>Definition:</b> <a href="config_8cpp_source.html#l00055">config.cpp:55</a></div></div>
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-<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html">flow::util::Scoped_setter</a></div><div class="ttdoc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to ...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00119">util.hpp:120</a></div></div>
+<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html">flow::util::Scoped_setter</a></div><div class="ttdoc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to ...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00144">util.hpp:145</a></div></div>
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 <div class="ttc" id="anamespaceflow_1_1log_html_a5c602384e6fe9d7642740ac2fae4ad04"><div class="ttname"><a href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04">flow::log::Sev</a></div><div class="ttdeci">Sev</div><div class="ttdoc">Enumeration containing one of several message severity levels, ordered from highest to lowest.</div><div class="ttdef"><b>Definition:</b> <a href="log__fwd_8hpp_source.html#l00223">log_fwd.hpp:224</a></div></div>
@@ -390,7 +390,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/config_8hpp.html b/doc/flow_doc/generated/html_full/config_8hpp.html
index b7bfbebba..d03285cc5 100644
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@@ -105,7 +105,7 @@
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/config_8hpp_source.html b/doc/flow_doc/generated/html_full/config_8hpp_source.html
index f6fa93542..bd62e05e0 100644
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+++ b/doc/flow_doc/generated/html_full/config_8hpp_source.html
@@ -1158,7 +1158,7 @@
 <div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span>}</div>
 <div class="line"><a id="l01087" name="l01087"></a><span class="lineno"> 1087</span> </div>
 <div class="line"><a id="l01088" name="l01088"></a><span class="lineno"> 1088</span>} <span class="comment">// namespace flow::log</span></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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@@ -1196,19 +1196,19 @@
 <div class="ttc" id="aclassflow_1_1log_1_1Config_html_ae447f7751eb63baefb04fdeeeff95fda"><div class="ttname"><a href="classflow_1_1log_1_1Config.html#ae447f7751eb63baefb04fdeeeff95fda">flow::log::Config::m_component_cfgs_by_payload_type</a></div><div class="ttdeci">Component_payload_type_to_cfg_map m_component_cfgs_by_payload_type</div><div class="ttdoc">Fast-lookup map from distinct Component_payload type to the config for that component enum.</div><div class="ttdef"><b>Definition:</b> <a href="config_8hpp_source.html#l00862">config.hpp:862</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Config_html_aee6877cec4b070e18a40090f080e76ca"><div class="ttname"><a href="classflow_1_1log_1_1Config.html#aee6877cec4b070e18a40090f080e76ca">flow::log::Config::store_severity_by_component</a></div><div class="ttdeci">void store_severity_by_component(component_union_idx_t component_union_idx, raw_sev_t most_verbose_sev_or_none)</div><div class="ttdoc">Helper that for the given flat-union-component-index saves the given per-component verbosity,...</div><div class="ttdef"><b>Definition:</b> <a href="config_8cpp_source.html#l00055">config.cpp:55</a></div></div>
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-<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html">flow::util::Scoped_setter</a></div><div class="ttdoc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to ...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00119">util.hpp:120</a></div></div>
+<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html">flow::util::Scoped_setter</a></div><div class="ttdoc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to ...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00144">util.hpp:145</a></div></div>
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 <div class="ttc" id="anamespaceflow_1_1log_html"><div class="ttname"><a href="namespaceflow_1_1log.html">flow::log</a></div><div class="ttdoc">Flow module providing logging functionality.</div><div class="ttdef"><b>Definition:</b> <a href="async__file__logger_8cpp_source.html#l00027">async_file_logger.cpp:28</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1log_html_a5c602384e6fe9d7642740ac2fae4ad04"><div class="ttname"><a href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04">flow::log::Sev</a></div><div class="ttdeci">Sev</div><div class="ttdoc">Enumeration containing one of several message severity levels, ordered from highest to lowest.</div><div class="ttdef"><b>Definition:</b> <a href="log__fwd_8hpp_source.html#l00223">log_fwd.hpp:224</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a03984e29450abf9cf287c501d6c8f866"><div class="ttname"><a href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">flow::util::key_exists</a></div><div class="ttdeci">bool key_exists(const Container &amp;container, const typename Container::key_type &amp;key)</div><div class="ttdoc">Returns true if and only if the given key is present at least once in the given associative container...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00276">util.hpp:276</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a03984e29450abf9cf287c501d6c8f866"><div class="ttname"><a href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">flow::util::key_exists</a></div><div class="ttdeci">bool key_exists(const Container &amp;container, const typename Container::key_type &amp;key)</div><div class="ttdoc">Returns true if and only if the given key is present at least once in the given associative container...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00301">util.hpp:301</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_ae4dc52186797094b3040379ff19124c9"><div class="ttname"><a href="namespaceflow_1_1util.html#ae4dc52186797094b3040379ff19124c9">flow::util::String_view</a></div><div class="ttdeci">Basic_string_view&lt; char &gt; String_view</div><div class="ttdoc">Commonly used char-based Basic_string_view. See its doc header.</div><div class="ttdef"><b>Definition:</b> <a href="string__view_8hpp_source.html#l00191">string_view.hpp:191</a></div></div>
-<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00386">common.hpp:386</a></div></div>
+<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00391">common.hpp:391</a></div></div>
 <div class="ttc" id="astructflow_1_1log_1_1Config_1_1Component__config_html"><div class="ttname"><a href="structflow_1_1log_1_1Config_1_1Component__config.html">flow::log::Config::Component_config</a></div><div class="ttdoc">The set of config stored for each distinct (as determined by Component::payload_type(),...</div><div class="ttdef"><b>Definition:</b> <a href="config_8hpp_source.html#l00675">config.hpp:676</a></div></div>
 <div class="ttc" id="astructflow_1_1log_1_1Config_1_1Component__config_html_af2e34d559da2d9d28cd744be5f8b6f07"><div class="ttname"><a href="structflow_1_1log_1_1Config_1_1Component__config.html#af2e34d559da2d9d28cd744be5f8b6f07">flow::log::Config::Component_config::m_enum_to_num_offset</a></div><div class="ttdeci">component_union_idx_t m_enum_to_num_offset</div><div class="ttdoc">See the enum_to_num_offset arg in init_component_to_union_idx_mapping() doc header.</div><div class="ttdef"><b>Definition:</b> <a href="config_8hpp_source.html#l00680">config.hpp:680</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/config__enum__end__cpp_8macros_8hpp.html b/doc/flow_doc/generated/html_full/config__enum__end__cpp_8macros_8hpp.html
index 3977ef0db..bb096a666 100644
--- a/doc/flow_doc/generated/html_full/config__enum__end__cpp_8macros_8hpp.html
+++ b/doc/flow_doc/generated/html_full/config__enum__end__cpp_8macros_8hpp.html
@@ -75,7 +75,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/config__enum__end__cpp_8macros_8hpp_source.html b/doc/flow_doc/generated/html_full/config__enum__end__cpp_8macros_8hpp_source.html
index 24292f96e..c3c8583a2 100644
--- a/doc/flow_doc/generated/html_full/config__enum__end__cpp_8macros_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/config__enum__end__cpp_8macros_8hpp_source.html
@@ -99,7 +99,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/config__enum__end__hdr_8macros_8hpp.html b/doc/flow_doc/generated/html_full/config__enum__end__hdr_8macros_8hpp.html
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@@ -75,7 +75,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span>} <span class="comment">// namespace flow::util</span></div>
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 <div class="ttc" id="anamespaceflow_1_1util_html_a3a33fa903d51cbe124781544eaf0c4bc"><div class="ttname"><a href="namespaceflow_1_1util.html#a3a33fa903d51cbe124781544eaf0c4bc">flow::util::get_where_am_i_str</a></div><div class="ttdeci">std::string get_where_am_i_str(String_view file, String_view function, unsigned int line)</div><div class="ttdoc">Helper for FLOW_UTIL_WHERE_AM_I(), etc., that, given values for source code file name,...</div><div class="ttdef"><b>Definition:</b> <a href="detail_2util_8cpp_source.html#l00027">util.cpp:27</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a8afd30c50bcd670d45442df49d1da484"><div class="ttname"><a href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">flow::util::ostream_op_to_string</a></div><div class="ttdeci">void ostream_op_to_string(std::string *target_str, T const &amp;... ostream_args)</div><div class="ttdoc">Writes to the specified string, as if the given arguments were each passed, via &lt;&lt; in sequence,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00342">util.hpp:342</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a8afd30c50bcd670d45442df49d1da484"><div class="ttname"><a href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">flow::util::ostream_op_to_string</a></div><div class="ttdeci">void ostream_op_to_string(std::string *target_str, T const &amp;... ostream_args)</div><div class="ttdoc">Writes to the specified string, as if the given arguments were each passed, via &lt;&lt; in sequence,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00367">util.hpp:367</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_ae4dc52186797094b3040379ff19124c9"><div class="ttname"><a href="namespaceflow_1_1util.html#ae4dc52186797094b3040379ff19124c9">flow::util::String_view</a></div><div class="ttdeci">Basic_string_view&lt; char &gt; String_view</div><div class="ttdoc">Commonly used char-based Basic_string_view. See its doc header.</div><div class="ttdef"><b>Definition:</b> <a href="string__view_8hpp_source.html#l00191">string_view.hpp:191</a></div></div>
 <div class="ttc" id="autil_2detail_2util_8hpp_html"><div class="ttname"><a href="util_2detail_2util_8hpp.html">util.hpp</a></div></div>
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@@ -127,7 +127,7 @@
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 <!-- start footer part -->
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
 <div class="ttc" id="astring__view_8hpp_html"><div class="ttname"><a href="string__view_8hpp.html">string_view.hpp</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>asio &rarr; util Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in net_flow/asio</th><th class="dirtab">Includes file in util</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="asio_2node_8hpp.html">node.hpp</a></td><td class="dirtab"><a class="el" href="sched__task_8hpp.html">sched_task.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>async &rarr; detail Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in async</th><th class="dirtab">Includes file in async/detail</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="async__fwd_8hpp.html">async_fwd.hpp</a></td><td class="dirtab"><a class="el" href="detail_2async__fwd_8hpp.html">async_fwd.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="segregated__thread__task__loop_8cpp.html">segregated_thread_task_loop.cpp</a></td><td class="dirtab"><a class="el" href="task__qing__thread_8hpp.html">task_qing_thread.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="segregated__thread__task__loop_8hpp.html">segregated_thread_task_loop.hpp</a></td><td class="dirtab"><a class="el" href="detail_2async__fwd_8hpp.html">async_fwd.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="x__thread__task__loop_8cpp.html">x_thread_task_loop.cpp</a></td><td class="dirtab"><a class="el" href="task__qing__thread_8hpp.html">task_qing_thread.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="x__thread__task__loop_8hpp.html">x_thread_task_loop.hpp</a></td><td class="dirtab"><a class="el" href="detail_2async__fwd_8hpp.html">async_fwd.hpp</a></td></tr></table></div><!-- contents -->
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>async &rarr; perf Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in async</th><th class="dirtab">Includes file in perf</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="single__thread__task__loop_8hpp.html">single_thread_task_loop.hpp</a></td><td class="dirtab"><a class="el" href="clock__type__fwd_8hpp.html">clock_type_fwd.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="timed__concurrent__task__loop_8hpp.html">timed_concurrent_task_loop.hpp</a></td><td class="dirtab"><a class="el" href="timed__handler_8hpp.html">timed_handler.hpp</a></td></tr></table></div><!-- contents -->
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>cfg &rarr; log Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in cfg</th><th class="dirtab">Includes file in log</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="option__set_8hpp.html">option_set.hpp</a></td><td class="dirtab"><a class="el" href="log_8hpp.html">log.hpp</a></td></tr></table></div><!-- contents -->
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>cfg &rarr; util Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in cfg</th><th class="dirtab">Includes file in util</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="cfg__fwd_8hpp.html">cfg_fwd.hpp</a></td><td class="dirtab"><a class="el" href="util__fwd_8hpp.html">util_fwd.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="cfg__manager_8hpp.html">cfg_manager.hpp</a></td><td class="dirtab"><a class="el" href="shared__ptr__alias__holder_8hpp.html">shared_ptr_alias_holder.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="cfg__manager_8hpp.html">cfg_manager.hpp</a></td><td class="dirtab"><a class="el" href="util_2util_8hpp.html">util.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>cong_ctl &rarr; stats Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in net_flow/detail/cong_ctl</th><th class="dirtab">Includes file in net_flow/detail/stats</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="cong__ctl__classic__bw_8hpp.html">cong_ctl_classic_bw.hpp</a></td><td class="dirtab"><a class="el" href="bandwidth_8hpp.html">bandwidth.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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index dedd56488..6174e6b6b 100644
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 <h3>detail &rarr; log Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in async/detail</th><th class="dirtab">Includes file in log</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="task__qing__thread_8cpp.html">task_qing_thread.cpp</a></td><td class="dirtab"><a class="el" href="config_8hpp.html">config.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="task__qing__thread_8hpp.html">task_qing_thread.hpp</a></td><td class="dirtab"><a class="el" href="log_8hpp.html">log.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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index 479dede6d..109b4c858 100644
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 <h3>detail &rarr; util Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in async/detail</th><th class="dirtab">Includes file in util</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="task__qing__thread_8hpp.html">task_qing_thread.hpp</a></td><td class="dirtab"><a class="el" href="util__fwd_8hpp.html">util_fwd.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/dir_000007_000019.html b/doc/flow_doc/generated/html_full/dir_000007_000019.html
index 8732e7e73..2d5b0fd67 100644
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 <h3>detail &rarr; util Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in log/detail</th><th class="dirtab">Includes file in util</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="thread__lcl__str__appender_8hpp.html">thread_lcl_str_appender.hpp</a></td><td class="dirtab"><a class="el" href="string__ostream_8hpp.html">string_ostream.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="thread__lcl__str__appender_8hpp.html">thread_lcl_str_appender.hpp</a></td><td class="dirtab"><a class="el" href="uniq__id__holder_8hpp.html">uniq_id_holder.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>detail &rarr; cong_ctl Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in net_flow/detail</th><th class="dirtab">Includes file in net_flow/detail/cong_ctl</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="cong__ctl_8cpp.html">cong_ctl.cpp</a></td><td class="dirtab"><a class="el" href="cong__ctl__classic_8hpp.html">cong_ctl_classic.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="cong__ctl_8cpp.html">cong_ctl.cpp</a></td><td class="dirtab"><a class="el" href="cong__ctl__classic__bw_8hpp.html">cong_ctl_classic_bw.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>detail &rarr; error Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in net_flow/detail</th><th class="dirtab">Includes file in net_flow/error</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="port__space_8hpp.html">port_space.hpp</a></td><td class="dirtab"><a class="el" href="net__flow_2error_2error_8hpp.html">error.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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index f89ce8f11..17f2f4b75 100644
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 <h3>detail &rarr; log Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in net_flow/detail</th><th class="dirtab">Includes file in log</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="cong__ctl_8hpp.html">cong_ctl.hpp</a></td><td class="dirtab"><a class="el" href="log_8hpp.html">log.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="low__lvl__packet_8hpp.html">low_lvl_packet.hpp</a></td><td class="dirtab"><a class="el" href="log_8hpp.html">log.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="port__space_8hpp.html">port_space.hpp</a></td><td class="dirtab"><a class="el" href="log_8hpp.html">log.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="seq__num_8hpp.html">seq_num.hpp</a></td><td class="dirtab"><a class="el" href="log_8hpp.html">log.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="socket__buffer_8hpp.html">socket_buffer.hpp</a></td><td class="dirtab"><a class="el" href="log_8hpp.html">log.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>error &rarr; util Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in error</th><th class="dirtab">Includes file in util</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="error_2error_8hpp.html">error.hpp</a></td><td class="dirtab"><a class="el" href="dir_076e4717ccf31a1bda117b982e8d440f.html">detail</a>&#160;/&#160;<a class="el" href="util_2detail_2util_8hpp.html">util.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="error__fwd_8hpp.html">error_fwd.hpp</a></td><td class="dirtab"><a class="el" href="util__fwd_8hpp.html">util_fwd.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>error &rarr; detail Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in net_flow/error</th><th class="dirtab">Includes file in net_flow/detail</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="net__flow_2error_2error_8cpp.html">error.cpp</a></td><td class="dirtab"><a class="el" href="port__space_8hpp.html">port_space.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/doc-coding__style_8cpp_source.html b/doc/flow_doc/generated/html_full/doc-coding__style_8cpp_source.html
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+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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+<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00391">common.hpp:391</a></div></div>
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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@@ -650,7 +650,7 @@
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 <div class="line"><a id="l00579" name="l00579"></a><span class="lineno">  579</span> </div>
 <div class="line"><a id="l00580" name="l00580"></a><span class="lineno">  580</span>} <span class="comment">// namespace flow::net_flow</span></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Log__context_html_a8a5fef42dc2cedf3c0d1a6e83beb2948"><div class="ttname"><a href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">flow::log::Log_context::get_log_component</a></div><div class="ttdeci">const Component &amp; get_log_component() const</div><div class="ttdoc">Returns reference to the stored Component object, particularly as many FLOW_LOG_*() macros expect.</div><div class="ttdef"><b>Definition:</b> <a href="log_8cpp_source.html#l00230">log.cpp:230</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Log__context_html_af4db395042b065b00398cd59845dcb4d"><div class="ttname"><a href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">flow::log::Log_context::get_logger</a></div><div class="ttdeci">Logger * get_logger() const</div><div class="ttdoc">Returns the stored Logger pointer, particularly as many FLOW_LOG_*() macros expect.</div><div class="ttdef"><b>Definition:</b> <a href="log_8cpp_source.html#l00225">log.cpp:225</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Logger_html"><div class="ttname"><a href="classflow_1_1log_1_1Logger.html">flow::log::Logger</a></div><div class="ttdoc">Interface that the user should implement, passing the implementing Logger into logging classes (Flow'...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01287">log.hpp:1291</a></div></div>
@@ -684,7 +684,7 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Drop__timer_html_ad9db83f50aec60604de55d01e15ea403"><div class="ttname"><a href="classflow_1_1net__flow_1_1Drop__timer.html#ad9db83f50aec60604de55d01e15ea403">flow::net_flow::Drop_timer::m_sock_drop_timeout</a></div><div class="ttdeci">Fine_duration &amp; m_sock_drop_timeout</div><div class="ttdoc">Reference to the containing Peer_socket's Peer_socket::m_snd_drop_timeout data member (= DTO,...</div><div class="ttdef"><b>Definition:</b> <a href="drop__timer_8hpp_source.html#l00385">drop_timer.hpp:385</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Drop__timer_html_addd06c5f17e59cbfd70677831a66bc57"><div class="ttname"><a href="classflow_1_1net__flow_1_1Drop__timer.html#addd06c5f17e59cbfd70677831a66bc57">flow::net_flow::Drop_timer::m_in_events_group</a></div><div class="ttdeci">bool m_in_events_group</div><div class="ttdoc">true if and only if the last start_contemporaneous_events() call exists, and either end_contemporaneo...</div><div class="ttdef"><b>Definition:</b> <a href="drop__timer_8hpp_source.html#l00473">drop_timer.hpp:473</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Drop__timer_html_afc1bf0978b04d454f5aa228a44550565"><div class="ttname"><a href="classflow_1_1net__flow_1_1Drop__timer.html#afc1bf0978b04d454f5aa228a44550565">flow::net_flow::Drop_timer::on_packet_in_flight</a></div><div class="ttdeci">void on_packet_in_flight(packet_id_t packet_id)</div><div class="ttdoc">Indicates that a packet identified by the given unique ID has just been sent over the wire (the low-l...</div><div class="ttdef"><b>Definition:</b> <a href="drop__timer_8cpp_source.html#l00052">drop_timer.cpp:52</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a98c6729b318f28b61e144f8a9b1f4dfc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">flow::net_flow::Peer_socket::Options_lock</a></div><div class="ttdeci">util::Lock_guard&lt; Options_mutex &gt; Options_lock</div><div class="ttdoc">Short-hand for lock that acquires exclusive access to an Options_mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00888">peer_socket.hpp:888</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a98c6729b318f28b61e144f8a9b1f4dfc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">flow::net_flow::Peer_socket::Options_lock</a></div><div class="ttdeci">util::Lock_guard&lt; Options_mutex &gt; Options_lock</div><div class="ttdoc">Short-hand for lock that acquires exclusive access to an Options_mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00889">peer_socket.hpp:889</a></div></div>
 <div class="ttc" id="aclassflow_1_1util_1_1Shared__ptr__alias__holder_html_aa4f1af88393042e60159a3a67f0accbc"><div class="ttname"><a href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Drop_timer &gt; &gt;::Ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Drop_timer &gt; Ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to mutable values of type Target_type::element_type (a-la T*).</div><div class="ttdef"><b>Definition:</b> <a href="shared__ptr__alias__holder_8hpp_source.html#l00118">shared_ptr_alias_holder.hpp:118</a></div></div>
 <div class="ttc" id="aclassflow_1_1util_1_1Shared__ptr__alias__holder_html_aef7998db71c60eeb5d1e3d1a97c14886"><div class="ttname"><a href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Peer_socket &gt; &gt;::Const_ptr</a></div><div class="ttdeci">Const_target_ptr Const_ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to immutable values of type Target_type::element_type (a-la T cons...</div><div class="ttdef"><b>Definition:</b> <a href="shared__ptr__alias__holder_8hpp_source.html#l00120">shared_ptr_alias_holder.hpp:120</a></div></div>
 <div class="ttc" id="adrop__timer_8hpp_html"><div class="ttname"><a href="drop__timer_8hpp.html">drop_timer.hpp</a></div></div>
@@ -693,17 +693,17 @@
 <div class="ttc" id="anamespaceflow_1_1log_html_a5c602384e6fe9d7642740ac2fae4ad04"><div class="ttname"><a href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04">flow::log::Sev</a></div><div class="ttdeci">Sev</div><div class="ttdoc">Enumeration containing one of several message severity levels, ordered from highest to lowest.</div><div class="ttdef"><b>Definition:</b> <a href="log__fwd_8hpp_source.html#l00223">log_fwd.hpp:224</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1error_html_a18e13de77b119ea0f2be411490859482ae020e63f3ada47025681c8d7f2a00f28"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae020e63f3ada47025681c8d7f2a00f28">flow::net_flow::error::Code::S_INTERNAL_ERROR_SYSTEM_ERROR_ASIO_TIMER</a></div><div class="ttdeci">@ S_INTERNAL_ERROR_SYSTEM_ERROR_ASIO_TIMER</div><div class="ttdoc">Internal error: System error: Something went wrong with boost.asio timer subsystem.</div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html"><div class="ttname"><a href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div><div class="ttdoc">Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8cpp_source.html#l00024">node.cpp:25</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a03984e29450abf9cf287c501d6c8f866"><div class="ttname"><a href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">flow::util::key_exists</a></div><div class="ttdeci">bool key_exists(const Container &amp;container, const typename Container::key_type &amp;key)</div><div class="ttdoc">Returns true if and only if the given key is present at least once in the given associative container...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00276">util.hpp:276</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a03984e29450abf9cf287c501d6c8f866"><div class="ttname"><a href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">flow::util::key_exists</a></div><div class="ttdeci">bool key_exists(const Container &amp;container, const typename Container::key_type &amp;key)</div><div class="ttdoc">Returns true if and only if the given key is present at least once in the given associative container...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00301">util.hpp:301</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_adf23368210219716b6fd22d15b765cb6"><div class="ttname"><a href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">flow::util::Task_engine</a></div><div class="ttdeci">boost::asio::io_service Task_engine</div><div class="ttdoc">Short-hand for boost.asio event service, the central class of boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00135">util_fwd.hpp:135</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
 <div class="ttc" id="autil_2util_8hpp_html"><div class="ttname"><a href="util_2util_8hpp.html">util.hpp</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/drop__timer_8hpp.html b/doc/flow_doc/generated/html_full/drop__timer_8hpp.html
index 4ad1f4b02..2f98673f8 100644
--- a/doc/flow_doc/generated/html_full/drop__timer_8hpp.html
+++ b/doc/flow_doc/generated/html_full/drop__timer_8hpp.html
@@ -99,7 +99,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/drop__timer_8hpp_source.html b/doc/flow_doc/generated/html_full/drop__timer_8hpp_source.html
index f772a0ccb..c92bc8c16 100644
--- a/doc/flow_doc/generated/html_full/drop__timer_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/drop__timer_8hpp_source.html
@@ -546,7 +546,7 @@
 <div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span>}; <span class="comment">// class Drop_timer</span></div>
 <div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span> </div>
 <div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span>} <span class="comment">// namespace flow::net_flow</span></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Log__context_html"><div class="ttname"><a href="classflow_1_1log_1_1Log__context.html">flow::log::Log_context</a></div><div class="ttdoc">Convenience class that simply stores a Logger and/or Component passed into a constructor; and returns...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01618">log.hpp:1619</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Logger_html"><div class="ttname"><a href="classflow_1_1log_1_1Logger.html">flow::log::Logger</a></div><div class="ttdoc">Interface that the user should implement, passing the implementing Logger into logging classes (Flow'...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01287">log.hpp:1291</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Drop__timer_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Drop__timer.html">flow::net_flow::Drop_timer</a></div><div class="ttdoc">Internal net_flow class that maintains the Drop Timer for DATA packet(s) to have been sent out over a...</div><div class="ttdef"><b>Definition:</b> <a href="drop__timer_8hpp_source.html#l00145">drop_timer.hpp:152</a></div></div>
@@ -587,14 +587,14 @@
 <div class="ttc" id="anamespaceflow_1_1net__flow_html"><div class="ttname"><a href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div><div class="ttdoc">Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8cpp_source.html#l00024">node.cpp:25</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_adf23368210219716b6fd22d15b765cb6"><div class="ttname"><a href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">flow::util::Task_engine</a></div><div class="ttdeci">boost::asio::io_service Task_engine</div><div class="ttdoc">Short-hand for boost.asio event service, the central class of boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00135">util_fwd.hpp:135</a></div></div>
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-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
 <div class="ttc" id="apeer__socket_8hpp_html"><div class="ttname"><a href="peer__socket_8hpp.html">peer_socket.hpp</a></div></div>
 <div class="ttc" id="ashared__ptr__alias__holder_8hpp_html"><div class="ttname"><a href="shared__ptr__alias__holder_8hpp.html">shared_ptr_alias_holder.hpp</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/dynamic__cfg__context_8hpp.html b/doc/flow_doc/generated/html_full/dynamic__cfg__context_8hpp.html
index 6445e6393..36edfef90 100644
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+++ b/doc/flow_doc/generated/html_full/dynamic__cfg__context_8hpp.html
@@ -98,7 +98,7 @@
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/event__set_8cpp_source.html b/doc/flow_doc/generated/html_full/event__set_8cpp_source.html
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 <div class="ttc" id="aclassflow_1_1net__flow_1_1Event__set_html_affac46b4e327b3781faab4853a290877"><div class="ttname"><a href="classflow_1_1net__flow_1_1Event__set.html#affac46b4e327b3781faab4853a290877">flow::net_flow::Event_set::Ev_type_to_socks_map</a></div><div class="ttdeci">util::Linked_hash_map&lt; Event_type, Sockets &gt; Ev_type_to_socks_map</div><div class="ttdoc">Short-hand for type storing a set of socket sets – one per possible Event_type enum value.</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8hpp_source.html#l00798">event_set.hpp:798</a></div></div>
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-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0756fc7301d0cfa66f19e681a9c60c06"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0756fc7301d0cfa66f19e681a9c60c06">flow::net_flow::Node::sock_is_writable</a></div><div class="ttdeci">bool sock_is_writable(const boost::any &amp;sock_as_any) const</div><div class="ttdoc">Returns true if and only if calling sock-&gt;send() with at least some arguments would return either non...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04713">peer_socket.cpp:4713</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0756fc7301d0cfa66f19e681a9c60c06"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0756fc7301d0cfa66f19e681a9c60c06">flow::net_flow::Node::sock_is_writable</a></div><div class="ttdeci">bool sock_is_writable(const boost::any &amp;sock_as_any) const</div><div class="ttdoc">Returns true if and only if calling sock-&gt;send() with at least some arguments would return either non...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04719">peer_socket.cpp:4719</a></div></div>
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 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2195fb7d86acfaf340b3e7e59e7e10e8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2195fb7d86acfaf340b3e7e59e7e10e8">flow::net_flow::Node::event_set_check_baseline</a></div><div class="ttdeci">bool event_set_check_baseline(Event_set::Ptr event_set)</div><div class="ttdoc">Checks each desired (Event_set::m_want) event in event_set; any that holds true is saved into event_s...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01017">event_set.cpp:1017</a></div></div>
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 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6727ca42e15c8627c1ed3d94e6dd7a53"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6727ca42e15c8627c1ed3d94e6dd7a53">flow::net_flow::Node::event_set_close_worker</a></div><div class="ttdeci">void event_set_close_worker(Event_set::Ptr event_set)</div><div class="ttdoc">The guts of event_set_close_worker_check_state(): same thing, but assumes Event_set::state() == Event...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01332">event_set.cpp:1332</a></div></div>
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+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa44feae2c97b4bc1fe1f14f83e932d84"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa44feae2c97b4bc1fe1f14f83e932d84">flow::net_flow::Node::sock_is_readable</a></div><div class="ttdeci">bool sock_is_readable(const boost::any &amp;sock_as_any) const</div><div class="ttdoc">Returns true if and only if calling sock-&gt;receive() with at least some arguments would return either ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05239">peer_socket.cpp:5239</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+<li>Node&#160;:&#160;<a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a6db9d28bd448a131448276ee03de1e6d">flow::net_flow::Event_set</a>, <a class="el" href="classflow_1_1net__flow_1_1Node.html#acd93ba39d6a9cdee60c2ad7da1085902">flow::net_flow::Node</a>, <a class="el" href="structflow_1_1net__flow_1_1Node__options.html#a6db9d28bd448a131448276ee03de1e6d">flow::net_flow::Node_options</a></li>
+<li>node()&#160;:&#160;<a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#aa9e7e1be830c901bc7348742e79ba2e7">flow::net_flow::Peer_socket</a></li>
+<li>Node&#160;:&#160;<a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html#a6db9d28bd448a131448276ee03de1e6d">flow::net_flow::Peer_socket</a>, <a class="el" href="classflow_1_1net__flow_1_1Server__socket.html#a6db9d28bd448a131448276ee03de1e6d">flow::net_flow::Server_socket</a></li>
+<li>node()&#160;:&#160;<a class="el" href="classflow_1_1net__flow_1_1Server__socket.html#ae22e94978d59dfe23559a254349670bd">flow::net_flow::Server_socket</a></li>
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+<li>Noncopyable()&#160;:&#160;<a class="el" href="structflow_1_1util_1_1Noncopyable.html#ac59627ad248129dd7b37d2d9286761cf">flow::util::Noncopyable</a></li>
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/functions_o.html b/doc/flow_doc/generated/html_full/functions_o.html
index 8ceac9acb..a89491c5b 100644
--- a/doc/flow_doc/generated/html_full/functions_o.html
+++ b/doc/flow_doc/generated/html_full/functions_o.html
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <tr id="row_44_30_0_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range__mt.html" target="_self">flow::util::Rnd_gen_uniform_range_mt&lt; range_t &gt;</a></td><td class="desc">Identical to <a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" title="Simple, non-thread-safe uniform-range random number generator.">Rnd_gen_uniform_range</a> but safe for concurrent RNG given a single object </td></tr>
 <tr id="row_44_31_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1util_1_1Scheduled__task__handle__state.html" target="_self">flow::util::Scheduled_task_handle_state</a></td><td class="desc">Internal-use data store used by <code>schedule[d]_task_*()</code>, each object containing the state relevant to a single call to either <a class="el" href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667" title="Schedule the given function to execute in a certain amount of time: A handy wrapper around Timer (asi...">schedule_task_from_now()</a> or <a class="el" href="namespaceflow_1_1util.html#aad8c8f7335eb892350dc386cb4be397e" title="Identical to schedule_task_from_now() except the time is specified in absolute terms.">schedule_task_at()</a> </td></tr>
 <tr id="row_44_32_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1String__ostream.html" target="_self">flow::util::String_ostream</a></td><td class="desc">Similar to <code>ostringstream</code> but allows fast read-only access directly into the <code>std::string</code> being written; and some limited write access to that string </td></tr>
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-<tr id="row_45_0_0_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span id="arr_45_0_0_" class="arrow" onclick="toggleFolder('45_0_0_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Timed__concurrent__task__loop__impl.html" target="_self">flow::async::Timed_concurrent_task_loop_impl&lt; std::atomic&lt; perf::duration_rep_t &gt; &gt;</a></td><td class="desc"></td></tr>
-<tr id="row_45_0_0_0_" class="even" style="display:none;"><td class="entry"><span style="width:64px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Timed__concurrent__task__loop.html" target="_self">flow::async::Timed_concurrent_task_loop</a></td><td class="desc">Decorates a general &ndash; potentially multi-threaded &ndash; <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> of any kind but with timing capabilities </td></tr>
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-<tr id="row_45_0_2_" class="even" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Cross__thread__task__loop.html" target="_self">flow::async::Cross_thread_task_loop</a></td><td class="desc">Concrete <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> that is able to efficiently schedule <code>Task</code>s within a given <code>Op</code> to execute in different threads while still properly avoiding concurrency </td></tr>
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-<tr id="row_45_0_4_" class="even" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Timed__concurrent__task__loop__impl.html" target="_self">flow::async::Timed_concurrent_task_loop_impl&lt; Time_accumulator &gt;</a></td><td class="desc">Decorator of a <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> with same or greater lifetime that accumulates time elapsed in any tasks posted or scheduled onto that loop </td></tr>
-<tr id="row_45_1_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Single__thread__task__loop.html" target="_self">flow::async::Single_thread_task_loop</a></td><td class="desc">A <code><a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a></code>-related adapter-style class that represents a single-thread task loop; essentially it is pleasant syntactic sugar around a <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> impl that cuts out concepts that become irrelevant with only one thread involved </td></tr>
-<tr id="row_45_2_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Logger.html" target="_self">flow::log::Logger</a></td><td class="desc">Interface that the user should implement, passing the implementing <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> into logging classes (Flow's own classes like <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">net_flow::Node</a>; and user's own logging classes) at construction (plus free/<code>static</code> logging functions) </td></tr>
-<tr id="row_45_3_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Congestion__control__strategy.html" target="_self">flow::net_flow::Congestion_control_strategy</a></td><td class="desc">The abstract interface for a per-socket module that determines the socket's congestion control behavior </td></tr>
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-<tr id="row_45_5_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Node.html" target="_self">flow::net_flow::Node</a></td><td class="desc">An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a distinct IP address and UDP port; and (2) it speaks the Flow protocol over a UDP transport layer </td></tr>
-<tr id="row_45_6_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" target="_self">flow::net_flow::Peer_socket</a></td><td class="desc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes and reliability support </td></tr>
-<tr id="row_45_7_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Server__socket.html" target="_self">flow::net_flow::Server_socket</a></td><td class="desc">A server socket able to listen on a single Flow port for incoming connections and return peer sockets (<a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> objects) to the local user once such connections are established </td></tr>
-<tr id="row_46_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1cfg_1_1Config__manager_1_1On__dynamic__change__func__handle.html" target="_self">flow::cfg::Config_manager&lt; S_d_value_set &gt;::On_dynamic_change_func_handle</a></td><td class="desc">Opaque handle for managing a dynamic config change callback </td></tr>
-<tr id="row_47_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_47_" class="arrow" onclick="toggleFolder('47_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1cfg_1_1Option__set__base.html" target="_self">flow::cfg::Option_set_base</a></td><td class="desc">Un-templated base for <a class="el" href="classflow_1_1cfg_1_1Option__set.html" title="The core config-parsing facility, which builds parsing/comparison/output capabilities on top of a giv...">Option_set</a> </td></tr>
-<tr id="row_47_0_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1cfg_1_1Option__set.html" target="_self">flow::cfg::Option_set&lt; Value_set &gt;</a></td><td class="desc">The core config-parsing facility, which builds parsing/comparison/output capabilities on top of a given simple config-holding object, of the type <code>Value_set</code>, a template argument to this class template </td></tr>
-<tr id="row_48_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html" target="_self">flow::net_flow::Low_lvl_packet::Packet_type_info</a></td><td class="desc">A simple, unmodifiable data store that contains the properties unique to each packet type a/k/a concrete sub-type of <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a> </td></tr>
-<tr id="row_49_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket__info.html" target="_self">flow::net_flow::Peer_socket_info</a></td><td class="desc">A data store that keeps stats about the a <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> connection </td></tr>
-<tr id="row_50_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket__options.html" target="_self">flow::net_flow::Peer_socket_options</a></td><td class="desc">A set of low-level options affecting a single <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> </td></tr>
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-<tr id="row_51_0_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator.html" target="_self">flow::net_flow::Peer_socket_receive_stats_accumulator</a></td><td class="desc">A class that keeps a <a class="el" href="structflow_1_1net__flow_1_1Peer__socket__receive__stats.html" title="A data store that keeps stats about the incoming direction of a Peer_socket connection to another Flo...">Peer_socket_receive_stats</a> data store, includes methods to conveniently accumulate data in it, and provides output to <code>ostream</code> </td></tr>
-<tr id="row_52_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_52_" class="arrow" onclick="toggleFolder('52_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket__send__stats.html" target="_self">flow::net_flow::Peer_socket_send_stats</a></td><td class="desc">A data store that keeps stats about the outgoing direction of a <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> connection to another Flow-protocol <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> </td></tr>
-<tr id="row_52_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket__send__stats__accumulator.html" target="_self">flow::net_flow::Peer_socket_send_stats_accumulator</a></td><td class="desc">A class that keeps a <a class="el" href="classflow_1_1net__flow_1_1Peer__socket__send__stats.html" title="A data store that keeps stats about the outgoing direction of a Peer_socket connection to another Flo...">Peer_socket_send_stats</a> data store, includes methods to conveniently accumulate data in it, and provides output to <code>ostream</code> </td></tr>
-<tr id="row_53_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Remote__endpoint.html" target="_self">flow::net_flow::Remote_endpoint</a></td><td class="desc">Represents the remote endpoint of a Flow-protocol connection; identifies the UDP endpoint of the remote <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> and the logical Flow-protocol port within that <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> </td></tr>
-<tr id="row_54_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_54_" class="arrow" onclick="toggleFolder('54_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range__base.html" target="_self">flow::util::Rnd_gen_uniform_range_base</a></td><td class="desc">Base class for <a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" title="Simple, non-thread-safe uniform-range random number generator.">Rnd_gen_uniform_range</a> and <a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range__mt.html" title="Identical to Rnd_gen_uniform_range but safe for concurrent RNG given a single object.">Rnd_gen_uniform_range_mt</a> for various aliases and similar, so template arguments need not be involved </td></tr>
-<tr id="row_54_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" target="_self">flow::util::Rnd_gen_uniform_range&lt; std::size_t &gt;</a></td><td class="desc"></td></tr>
-<tr id="row_54_1_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" target="_self">flow::util::Rnd_gen_uniform_range&lt; Peer_socket::security_token_t &gt;</a></td><td class="desc"></td></tr>
-<tr id="row_54_2_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" target="_self">flow::util::Rnd_gen_uniform_range&lt; range_t &gt;</a></td><td class="desc">Simple, non-thread-safe uniform-range random number generator </td></tr>
-<tr id="row_55_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Scoped__setter.html" target="_self">flow::util::Scoped_setter&lt; Value &gt;</a></td><td class="desc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to a specified value, memorizing the previous contents; and at destruction restores the value </td></tr>
-<tr id="row_56_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html" target="_self">flow::net_flow::Peer_socket::Sent_packet::Sent_when</a></td><td class="desc">Data store to keep timing related info when a packet is sent out </td></tr>
-<tr id="row_57_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Sequence__number.html" target="_self">flow::net_flow::Sequence_number</a></td><td class="desc">An internal <code><a class="el" href="namespaceflow_1_1net__flow.html" title="Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...">net_flow</a></code> sequence number identifying a piece of data </td></tr>
-<tr id="row_58_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; Target_ptr, Const_target_ptr &gt;</a></td><td class="desc">Convenience class template that endows the given subclass <code>T</code> with nested aliases <code>Ptr</code> and <code>Const_ptr</code> aliased to <code>shared_ptr&lt;T&gt;</code> and <code>shared_ptr&lt;const T&gt;</code> respectively </td></tr>
-<tr id="row_59_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_59_" class="arrow" onclick="toggleFolder('59_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Drop_timer &gt; &gt;</a></td><td class="desc"></td></tr>
-<tr id="row_59_0_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Drop__timer.html" target="_self">flow::net_flow::Drop_timer</a></td><td class="desc">Internal <code><a class="el" href="namespaceflow_1_1net__flow.html" title="Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...">net_flow</a></code> class that maintains the Drop Timer for DATA packet(s) to have been sent out over a connection but not yet acknowledged by the receiver </td></tr>
-<tr id="row_60_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_60_" class="arrow" onclick="toggleFolder('60_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Event_set &gt; &gt;</a></td><td class="desc"></td></tr>
-<tr id="row_60_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Event__set.html" target="_self">flow::net_flow::Event_set</a></td><td class="desc">A user-set collection of sockets and desired conditions on those sockets (such as: "socket has data
+<tr id="row_45_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1util_1_1Noncopyable.html" target="_self">flow::util::Noncopyable</a></td><td class="desc">Useful as a no-unique-address private member to make a type noncopyable while keeping that type an aggregate (can be direct-initialized) </td></tr>
+<tr id="row_46_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_46_" class="arrow" onclick="toggleFolder('46_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Null__interface.html" target="_self">flow::util::Null_interface</a></td><td class="desc">An empty interface, consisting of nothing but a default <code>virtual</code> destructor, intended as a boiler-plate-reducing base for any other (presumably <code>virtual</code>-method-having) class that would otherwise require a default <code>virtual</code> destructor </td></tr>
+<tr id="row_46_0_" style="display:none;"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span id="arr_46_0_" class="arrow" onclick="toggleFolder('46_0_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" target="_self">flow::async::Concurrent_task_loop</a></td><td class="desc">The core <a class="el" href="namespaceflow_1_1async.html" title="Flow module containing tools enabling multi-threaded event loops operating under the asynchronous-tas...">flow::async</a> interface, providing an optionally multi-threaded thread pool onto which runnable <code>Task</code>s, optionally arranged into concurrency-avoiding <code>Op</code>s, can be boost.asio-posted for subsequent execution </td></tr>
+<tr id="row_46_0_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span id="arr_46_0_0_" class="arrow" onclick="toggleFolder('46_0_0_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Timed__concurrent__task__loop__impl.html" target="_self">flow::async::Timed_concurrent_task_loop_impl&lt; std::atomic&lt; perf::duration_rep_t &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_46_0_0_0_" style="display:none;"><td class="entry"><span style="width:64px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Timed__concurrent__task__loop.html" target="_self">flow::async::Timed_concurrent_task_loop</a></td><td class="desc">Decorates a general &ndash; potentially multi-threaded &ndash; <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> of any kind but with timing capabilities </td></tr>
+<tr id="row_46_0_1_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Timed__concurrent__task__loop__impl.html" target="_self">flow::async::Timed_concurrent_task_loop_impl&lt; perf::duration_rep_t &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_46_0_2_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Cross__thread__task__loop.html" target="_self">flow::async::Cross_thread_task_loop</a></td><td class="desc">Concrete <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> that is able to efficiently schedule <code>Task</code>s within a given <code>Op</code> to execute in different threads while still properly avoiding concurrency </td></tr>
+<tr id="row_46_0_3_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Segregated__thread__task__loop.html" target="_self">flow::async::Segregated_thread_task_loop</a></td><td class="desc">Concrete <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> that uses the legacy pin-<code>Task</code>s-within-1-<code>Op</code>-to-1-thread method of achieving required non-concurrency of <code>Task</code>s </td></tr>
+<tr id="row_46_0_4_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Timed__concurrent__task__loop__impl.html" target="_self">flow::async::Timed_concurrent_task_loop_impl&lt; Time_accumulator &gt;</a></td><td class="desc">Decorator of a <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> with same or greater lifetime that accumulates time elapsed in any tasks posted or scheduled onto that loop </td></tr>
+<tr id="row_46_1_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Single__thread__task__loop.html" target="_self">flow::async::Single_thread_task_loop</a></td><td class="desc">A <code><a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a></code>-related adapter-style class that represents a single-thread task loop; essentially it is pleasant syntactic sugar around a <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> impl that cuts out concepts that become irrelevant with only one thread involved </td></tr>
+<tr id="row_46_2_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Logger.html" target="_self">flow::log::Logger</a></td><td class="desc">Interface that the user should implement, passing the implementing <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> into logging classes (Flow's own classes like <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">net_flow::Node</a>; and user's own logging classes) at construction (plus free/<code>static</code> logging functions) </td></tr>
+<tr id="row_46_3_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Congestion__control__strategy.html" target="_self">flow::net_flow::Congestion_control_strategy</a></td><td class="desc">The abstract interface for a per-socket module that determines the socket's congestion control behavior </td></tr>
+<tr id="row_46_4_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" target="_self">flow::net_flow::Low_lvl_packet</a></td><td class="desc">Internal <code><a class="el" href="namespaceflow_1_1net__flow.html" title="Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...">net_flow</a></code> <code>struct</code> that encapsulates the Flow-protocol low-level packet structure and serves as the super-type for all specific packet types, represented by derived <code>struct</code>s like <a class="el" href="structflow_1_1net__flow_1_1Ack__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.">Ack_packet</a>, <a class="el" href="structflow_1_1net__flow_1_1Rst__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level RST packet.">Rst_packet</a>, etc </td></tr>
+<tr id="row_46_5_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Node.html" target="_self">flow::net_flow::Node</a></td><td class="desc">An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a distinct IP address and UDP port; and (2) it speaks the Flow protocol over a UDP transport layer </td></tr>
+<tr id="row_46_6_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" target="_self">flow::net_flow::Peer_socket</a></td><td class="desc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes and reliability support </td></tr>
+<tr id="row_46_7_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Server__socket.html" target="_self">flow::net_flow::Server_socket</a></td><td class="desc">A server socket able to listen on a single Flow port for incoming connections and return peer sockets (<a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> objects) to the local user once such connections are established </td></tr>
+<tr id="row_47_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1cfg_1_1Config__manager_1_1On__dynamic__change__func__handle.html" target="_self">flow::cfg::Config_manager&lt; S_d_value_set &gt;::On_dynamic_change_func_handle</a></td><td class="desc">Opaque handle for managing a dynamic config change callback </td></tr>
+<tr id="row_48_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_48_" class="arrow" onclick="toggleFolder('48_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1cfg_1_1Option__set__base.html" target="_self">flow::cfg::Option_set_base</a></td><td class="desc">Un-templated base for <a class="el" href="classflow_1_1cfg_1_1Option__set.html" title="The core config-parsing facility, which builds parsing/comparison/output capabilities on top of a giv...">Option_set</a> </td></tr>
+<tr id="row_48_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1cfg_1_1Option__set.html" target="_self">flow::cfg::Option_set&lt; Value_set &gt;</a></td><td class="desc">The core config-parsing facility, which builds parsing/comparison/output capabilities on top of a given simple config-holding object, of the type <code>Value_set</code>, a template argument to this class template </td></tr>
+<tr id="row_49_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html" target="_self">flow::net_flow::Low_lvl_packet::Packet_type_info</a></td><td class="desc">A simple, unmodifiable data store that contains the properties unique to each packet type a/k/a concrete sub-type of <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a> </td></tr>
+<tr id="row_50_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket__info.html" target="_self">flow::net_flow::Peer_socket_info</a></td><td class="desc">A data store that keeps stats about the a <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> connection </td></tr>
+<tr id="row_51_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket__options.html" target="_self">flow::net_flow::Peer_socket_options</a></td><td class="desc">A set of low-level options affecting a single <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> </td></tr>
+<tr id="row_52_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_52_" class="arrow" onclick="toggleFolder('52_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket__receive__stats.html" target="_self">flow::net_flow::Peer_socket_receive_stats</a></td><td class="desc">A data store that keeps stats about the incoming direction of a <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> connection to another Flow-protocol <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> </td></tr>
+<tr id="row_52_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator.html" target="_self">flow::net_flow::Peer_socket_receive_stats_accumulator</a></td><td class="desc">A class that keeps a <a class="el" href="structflow_1_1net__flow_1_1Peer__socket__receive__stats.html" title="A data store that keeps stats about the incoming direction of a Peer_socket connection to another Flo...">Peer_socket_receive_stats</a> data store, includes methods to conveniently accumulate data in it, and provides output to <code>ostream</code> </td></tr>
+<tr id="row_53_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_53_" class="arrow" onclick="toggleFolder('53_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket__send__stats.html" target="_self">flow::net_flow::Peer_socket_send_stats</a></td><td class="desc">A data store that keeps stats about the outgoing direction of a <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> connection to another Flow-protocol <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> </td></tr>
+<tr id="row_53_0_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket__send__stats__accumulator.html" target="_self">flow::net_flow::Peer_socket_send_stats_accumulator</a></td><td class="desc">A class that keeps a <a class="el" href="classflow_1_1net__flow_1_1Peer__socket__send__stats.html" title="A data store that keeps stats about the outgoing direction of a Peer_socket connection to another Flo...">Peer_socket_send_stats</a> data store, includes methods to conveniently accumulate data in it, and provides output to <code>ostream</code> </td></tr>
+<tr id="row_54_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Remote__endpoint.html" target="_self">flow::net_flow::Remote_endpoint</a></td><td class="desc">Represents the remote endpoint of a Flow-protocol connection; identifies the UDP endpoint of the remote <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> and the logical Flow-protocol port within that <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> </td></tr>
+<tr id="row_55_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_55_" class="arrow" onclick="toggleFolder('55_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range__base.html" target="_self">flow::util::Rnd_gen_uniform_range_base</a></td><td class="desc">Base class for <a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" title="Simple, non-thread-safe uniform-range random number generator.">Rnd_gen_uniform_range</a> and <a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range__mt.html" title="Identical to Rnd_gen_uniform_range but safe for concurrent RNG given a single object.">Rnd_gen_uniform_range_mt</a> for various aliases and similar, so template arguments need not be involved </td></tr>
+<tr id="row_55_0_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" target="_self">flow::util::Rnd_gen_uniform_range&lt; std::size_t &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_55_1_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" target="_self">flow::util::Rnd_gen_uniform_range&lt; Peer_socket::security_token_t &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_55_2_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" target="_self">flow::util::Rnd_gen_uniform_range&lt; range_t &gt;</a></td><td class="desc">Simple, non-thread-safe uniform-range random number generator </td></tr>
+<tr id="row_56_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Scoped__setter.html" target="_self">flow::util::Scoped_setter&lt; Value &gt;</a></td><td class="desc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to a specified value, memorizing the previous contents; and at destruction restores the value </td></tr>
+<tr id="row_57_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html" target="_self">flow::net_flow::Peer_socket::Sent_packet::Sent_when</a></td><td class="desc">Data store to keep timing related info when a packet is sent out </td></tr>
+<tr id="row_58_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Sequence__number.html" target="_self">flow::net_flow::Sequence_number</a></td><td class="desc">An internal <code><a class="el" href="namespaceflow_1_1net__flow.html" title="Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...">net_flow</a></code> sequence number identifying a piece of data </td></tr>
+<tr id="row_59_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; Target_ptr, Const_target_ptr &gt;</a></td><td class="desc">Convenience class template that endows the given subclass <code>T</code> with nested aliases <code>Ptr</code> and <code>Const_ptr</code> aliased to <code>shared_ptr&lt;T&gt;</code> and <code>shared_ptr&lt;const T&gt;</code> respectively </td></tr>
+<tr id="row_60_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_60_" class="arrow" onclick="toggleFolder('60_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Drop_timer &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_60_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Drop__timer.html" target="_self">flow::net_flow::Drop_timer</a></td><td class="desc">Internal <code><a class="el" href="namespaceflow_1_1net__flow.html" title="Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...">net_flow</a></code> class that maintains the Drop Timer for DATA packet(s) to have been sent out over a connection but not yet acknowledged by the receiver </td></tr>
+<tr id="row_61_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_61_" class="arrow" onclick="toggleFolder('61_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Event_set &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_61_0_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Event__set.html" target="_self">flow::net_flow::Event_set</a></td><td class="desc">A user-set collection of sockets and desired conditions on those sockets (such as: "socket has data
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-<tr id="row_62_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_62_" class="arrow" onclick="toggleFolder('62_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Null_value_set &gt; &gt;</a></td><td class="desc"></td></tr>
-<tr id="row_62_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1cfg_1_1Null__value__set.html" target="_self">flow::cfg::Null_value_set</a></td><td class="desc">Empty <code>struct</code> suitable as a <code>*_value_set</code> template arg for <a class="el" href="classflow_1_1cfg_1_1Config__manager.html" title="Manages a config setup, intended for a single daemon process, by maintaining 1 or more set(s) of stat...">Config_manager</a>, when a slot requires a <code>Value_set</code>, but you have no config to actually parse there </td></tr>
-<tr id="row_63_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_63_" class="arrow" onclick="toggleFolder('63_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Peer_socket &gt; &gt;</a></td><td class="desc"></td></tr>
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-<tr id="row_64_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html" target="_self">flow::net_flow::Peer_socket::Received_packet</a></td><td class="desc">Metadata (and data, if retransmission is on) for a packet that has been received (and, if retransmission is off, copied to Receive buffer) </td></tr>
-<tr id="row_65_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_65_" class="arrow" onclick="toggleFolder('65_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Peer_socket::Sent_packet &gt; &gt;</a></td><td class="desc"></td></tr>
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-<tr id="row_66_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_66_" class="arrow" onclick="toggleFolder('66_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Server_socket &gt; &gt;</a></td><td class="desc"></td></tr>
-<tr id="row_66_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Server__socket.html" target="_self">flow::net_flow::Server_socket</a></td><td class="desc">A server socket able to listen on a single Flow port for incoming connections and return peer sockets (<a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> objects) to the local user once such connections are established </td></tr>
-<tr id="row_67_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__equals.html" target="_self">flow::net_flow::Event_set::Socket_as_any_equals</a></td><td class="desc">Equality predicate class used in storing various sockets of types wrapped as <code>boost::any</code>s in the <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a592b3ce6602051bd9994216041a3cbdc" title="A set of sockets of one type, used to communicate sets of desired and resulting events in various Eve...">Sockets</a> type </td></tr>
-<tr id="row_68_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__hash.html" target="_self">flow::net_flow::Event_set::Socket_as_any_hash</a></td><td class="desc">Hasher class used in storing various sockets of types wrapped as <code>boost::any</code>s in the <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a592b3ce6602051bd9994216041a3cbdc" title="A set of sockets of one type, used to communicate sets of desired and resulting events in various Eve...">Sockets</a> type </td></tr>
-<tr id="row_69_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html" target="_self">flow::net_flow::Node::Socket_id</a></td><td class="desc">The data nugget uniquely identifying a peer-to-peer connection from a remote endpoint to a port in this <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> </td></tr>
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-<tr id="row_70_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1error_1_1Runtime__error.html" target="_self">flow::error::Runtime_error</a></td><td class="desc">An <code>std::runtime_error</code> (which is an <code>std::exception</code>) that stores an <a class="el" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09" title="Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...">Error_code</a> </td></tr>
-<tr id="row_71_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1log_1_1Async__file__logger_1_1Throttling__cfg.html" target="_self">flow::log::Async_file_logger::Throttling_cfg</a></td><td class="desc">Controls behavior of the throttling algorithm as described in <a class="el" href="classflow_1_1log_1_1Async__file__logger.html" title="An implementation of Logger that logs messages to a given file-system path but never blocks any loggi...">Async_file_logger</a> doc header Throttling section </td></tr>
-<tr id="row_72_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1perf_1_1Time__pt__set.html" target="_self">flow::perf::Time_pt_set</a></td><td class="desc">Convenience wrapper around an <code>array&lt;Time_pt, N&gt;</code>, which stores a time point for each of the N possible clock types in <a class="el" href="namespaceflow_1_1perf.html#ad61fb186191e4bb824d14601d11a2eb0" title="Clock types supported by flow::perf module facilities, perf::Checkpointing_timer in particular.">perf::Clock_type</a> </td></tr>
-<tr id="row_73_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_73_" class="arrow" onclick="toggleFolder('73_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Unique__id__holder.html" target="_self">flow::util::Unique_id_holder</a></td><td class="desc">Each object of this class stores (at construction) and returns (on demand) a numeric ID unique from all other objects of the same class ever constructed, across all time from program start to end </td></tr>
-<tr id="row_73_0_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Logger.html" target="_self">flow::log::Logger</a></td><td class="desc">Interface that the user should implement, passing the implementing <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> into logging classes (Flow's own classes like <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">net_flow::Node</a>; and user's own logging classes) at construction (plus free/<code>static</code> logging functions) </td></tr>
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-<tr id="row_75_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classbool.html" target="_self">bool</a></td><td class="desc"></td></tr>
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+<tr id="row_62_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" target="_self">flow::net_flow::Low_lvl_packet</a></td><td class="desc">Internal <code><a class="el" href="namespaceflow_1_1net__flow.html" title="Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...">net_flow</a></code> <code>struct</code> that encapsulates the Flow-protocol low-level packet structure and serves as the super-type for all specific packet types, represented by derived <code>struct</code>s like <a class="el" href="structflow_1_1net__flow_1_1Ack__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.">Ack_packet</a>, <a class="el" href="structflow_1_1net__flow_1_1Rst__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level RST packet.">Rst_packet</a>, etc </td></tr>
+<tr id="row_63_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_63_" class="arrow" onclick="toggleFolder('63_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Null_value_set &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_63_0_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1cfg_1_1Null__value__set.html" target="_self">flow::cfg::Null_value_set</a></td><td class="desc">Empty <code>struct</code> suitable as a <code>*_value_set</code> template arg for <a class="el" href="classflow_1_1cfg_1_1Config__manager.html" title="Manages a config setup, intended for a single daemon process, by maintaining 1 or more set(s) of stat...">Config_manager</a>, when a slot requires a <code>Value_set</code>, but you have no config to actually parse there </td></tr>
+<tr id="row_64_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_64_" class="arrow" onclick="toggleFolder('64_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Peer_socket &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_64_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" target="_self">flow::net_flow::Peer_socket</a></td><td class="desc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes and reliability support </td></tr>
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+<tr id="row_65_0_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html" target="_self">flow::net_flow::Peer_socket::Received_packet</a></td><td class="desc">Metadata (and data, if retransmission is on) for a packet that has been received (and, if retransmission is off, copied to Receive buffer) </td></tr>
+<tr id="row_66_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_66_" class="arrow" onclick="toggleFolder('66_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Peer_socket::Sent_packet &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_66_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html" target="_self">flow::net_flow::Peer_socket::Sent_packet</a></td><td class="desc">Metadata (and data, if retransmission is on) for a packet that has been sent one (if retransmission is off) or possibly more (if on) times </td></tr>
+<tr id="row_67_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_67_" class="arrow" onclick="toggleFolder('67_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Server_socket &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_67_0_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Server__socket.html" target="_self">flow::net_flow::Server_socket</a></td><td class="desc">A server socket able to listen on a single Flow port for incoming connections and return peer sockets (<a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> objects) to the local user once such connections are established </td></tr>
+<tr id="row_68_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__equals.html" target="_self">flow::net_flow::Event_set::Socket_as_any_equals</a></td><td class="desc">Equality predicate class used in storing various sockets of types wrapped as <code>boost::any</code>s in the <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a592b3ce6602051bd9994216041a3cbdc" title="A set of sockets of one type, used to communicate sets of desired and resulting events in various Eve...">Sockets</a> type </td></tr>
+<tr id="row_69_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__hash.html" target="_self">flow::net_flow::Event_set::Socket_as_any_hash</a></td><td class="desc">Hasher class used in storing various sockets of types wrapped as <code>boost::any</code>s in the <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a592b3ce6602051bd9994216041a3cbdc" title="A set of sockets of one type, used to communicate sets of desired and resulting events in various Eve...">Sockets</a> type </td></tr>
+<tr id="row_70_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html" target="_self">flow::net_flow::Node::Socket_id</a></td><td class="desc">The data nugget uniquely identifying a peer-to-peer connection from a remote endpoint to a port in this <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> </td></tr>
+<tr id="row_71_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_71_" class="arrow" onclick="toggleFolder('71_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classboost_1_1system_1_1system__error.html" target="_self">boost::system::system_error</a></td><td class="desc"></td></tr>
+<tr id="row_71_0_" class="even" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1error_1_1Runtime__error.html" target="_self">flow::error::Runtime_error</a></td><td class="desc">An <code>std::runtime_error</code> (which is an <code>std::exception</code>) that stores an <a class="el" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09" title="Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...">Error_code</a> </td></tr>
+<tr id="row_72_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1log_1_1Async__file__logger_1_1Throttling__cfg.html" target="_self">flow::log::Async_file_logger::Throttling_cfg</a></td><td class="desc">Controls behavior of the throttling algorithm as described in <a class="el" href="classflow_1_1log_1_1Async__file__logger.html" title="An implementation of Logger that logs messages to a given file-system path but never blocks any loggi...">Async_file_logger</a> doc header Throttling section </td></tr>
+<tr id="row_73_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1perf_1_1Time__pt__set.html" target="_self">flow::perf::Time_pt_set</a></td><td class="desc">Convenience wrapper around an <code>array&lt;Time_pt, N&gt;</code>, which stores a time point for each of the N possible clock types in <a class="el" href="namespaceflow_1_1perf.html#ad61fb186191e4bb824d14601d11a2eb0" title="Clock types supported by flow::perf module facilities, perf::Checkpointing_timer in particular.">perf::Clock_type</a> </td></tr>
+<tr id="row_74_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_74_" class="arrow" onclick="toggleFolder('74_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Unique__id__holder.html" target="_self">flow::util::Unique_id_holder</a></td><td class="desc">Each object of this class stores (at construction) and returns (on demand) a numeric ID unique from all other objects of the same class ever constructed, across all time from program start to end </td></tr>
+<tr id="row_74_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Logger.html" target="_self">flow::log::Logger</a></td><td class="desc">Interface that the user should implement, passing the implementing <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> into logging classes (Flow's own classes like <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">net_flow::Node</a>; and user's own logging classes) at construction (plus free/<code>static</code> logging functions) </td></tr>
+<tr id="row_75_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Verbosity__config.html" target="_self">flow::log::Verbosity_config</a></td><td class="desc">Optional-use structure encapsulating a full set of verbosity config, such that one can parse it from a config source (like an options file) in concise form and apply it to a <a class="el" href="classflow_1_1log_1_1Config.html" title="Class used to configure the filtering and logging behavior of Loggers; its use in your custom Loggers...">log::Config</a> object </td></tr>
+<tr id="row_76_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classbool.html" target="_self">bool</a></td><td class="desc"></td></tr>
+<tr id="row_77_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classboost_1_1random_1_1uniform__int__distribution_3_01Peer__socket_1_1security__token__t_01_4.html" target="_self">uniform_int_distribution&lt; Peer_socket::security_token_t &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_78_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classboost_1_1random_1_1uniform__int__distribution_3_01std_1_1size__t_01_4.html" target="_self">uniform_int_distribution&lt; std::size_t &gt;</a></td><td class="desc"></td></tr>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/log__component__enum__declare_8macros_8hpp_source.html b/doc/flow_doc/generated/html_full/log__component__enum__declare_8macros_8hpp_source.html
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/low__lvl__io_8cpp_source.html b/doc/flow_doc/generated/html_full/low__lvl__io_8cpp_source.html
index 345131734..6824ccd64 100644
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@@ -1192,7 +1192,7 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a74a6a82a1390a76e985593969fb47184"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a74a6a82a1390a76e985593969fb47184">flow::net_flow::Node::async_no_sock_low_lvl_rst_send</a></div><div class="ttdeci">void async_no_sock_low_lvl_rst_send(Low_lvl_packet::Const_ptr causing_packet, const util::Udp_endpoint &amp;low_lvl_remote_endpoint)</div><div class="ttdoc">Sends an RST to the given UDP endpoint in response to the given incoming low-level packet that came f...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00586">low_lvl_io.cpp:586</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a90ecbad1ff3a8d2fe4b3ad1c474f7513"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a90ecbad1ff3a8d2fe4b3ad1c474f7513">flow::net_flow::Node::handle_incoming_with_simulation</a></div><div class="ttdeci">unsigned int handle_incoming_with_simulation(util::Blob *packet_data, const util::Udp_endpoint &amp;low_lvl_remote_endpoint, bool is_sim_duplicate_packet=false)</div><div class="ttdoc">Helper for low_lvl_recv_and_handle() that calls handle_incoming() on the not-yet-deserialized low-lev...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00187">low_lvl_io.cpp:187</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a9909cd2b2a77c57da9e35fcef0f8a4e5"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a9909cd2b2a77c57da9e35fcef0f8a4e5">flow::net_flow::Node::low_lvl_recv_and_handle</a></div><div class="ttdeci">void low_lvl_recv_and_handle(Error_code sys_err_code)</div><div class="ttdoc">Handles the pre-condition that m_low_lvl_sock has a UDP packet available for reading,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00046">low_lvl_io.cpp:46</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a99836ffb51eaefa4d2cc21770461cd97"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">flow::net_flow::Node::socket_id</a></div><div class="ttdeci">static Socket_id socket_id(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Constructs the socket pair (connection ID) for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06068">peer_socket.cpp:6068</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a99836ffb51eaefa4d2cc21770461cd97"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">flow::net_flow::Node::socket_id</a></div><div class="ttdeci">static Socket_id socket_id(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Constructs the socket pair (connection ID) for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06074">peer_socket.cpp:6074</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a9b9e0224c17190e99debdfd81640bf89"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a9b9e0224c17190e99debdfd81640bf89">flow::net_flow::Node::m_low_lvl_sock</a></div><div class="ttdeci">Udp_socket m_low_lvl_sock</div><div class="ttdoc">The UDP socket used to receive low-level packets (to assemble into application layer data) and send t...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03753">node.hpp:3753</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a9f302fe63e36f72931e1a759b0aaaed4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a9f302fe63e36f72931e1a759b0aaaed4">flow::net_flow::Node::async_low_lvl_packet_send_impl</a></div><div class="ttdeci">void async_low_lvl_packet_send_impl(const util::Udp_endpoint &amp;low_lvl_remote_endpoint, Low_lvl_packet::Const_ptr packet, bool delayed_by_pacing, Peer_socket::Ptr sock)</div><div class="ttdoc">Takes given low-level packet structure, serializes it, and initiates asynchronous send of these data ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00321">low_lvl_io.cpp:321</a></div></div>
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@@ -1201,13 +1201,13 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad03aa88df3d1d3981454ee3356e868c1"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad03aa88df3d1d3981454ee3356e868c1">flow::net_flow::Node::async_sock_low_lvl_rst_send</a></div><div class="ttdeci">void async_sock_low_lvl_rst_send(Peer_socket::Ptr sock)</div><div class="ttdoc">Sends an RST to the other side of the given socket asynchronously when possible.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l01033">low_lvl_io.cpp:1033</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade08f0457943f803c23b55649139c0d3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade08f0457943f803c23b55649139c0d3">flow::net_flow::Node::m_opts</a></div><div class="ttdeci">Node_options m_opts</div><div class="ttdoc">This Node's global set of options.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03704">node.hpp:3704</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade12d2ebbd88b62432089a3a071b9514"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade12d2ebbd88b62432089a3a071b9514">flow::net_flow::Node::async_low_lvl_recv</a></div><div class="ttdeci">void async_low_lvl_recv()</div><div class="ttdoc">Registers so that during the current or next m_task_engine.run(), the latter will wait for a receivab...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00031">low_lvl_io.cpp:31</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade49e7bc7202a0adf33fec2d93d1b177"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">flow::net_flow::Node::close_connection_immediately</a></div><div class="ttdeci">void close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">A thread W method that handles the transition of the given socket from OPEN (any sub-state) to CLOSED...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05683">peer_socket.cpp:5683</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade49e7bc7202a0adf33fec2d93d1b177"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">flow::net_flow::Node::close_connection_immediately</a></div><div class="ttdeci">void close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">A thread W method that handles the transition of the given socket from OPEN (any sub-state) to CLOSED...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05689">peer_socket.cpp:5689</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_af5597a417d03e2bed87cd772ef5cef29"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">flow::net_flow::Node::m_task_engine</a></div><div class="ttdeci">util::Task_engine m_task_engine</div><div class="ttdoc">The main loop engine, functioning in the single-threaded-but-asynchronous callback-based &quot;reactor&quot; st...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03739">node.hpp:3739</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afb88dafa8ec5c1b412de86dfdccd9c8f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afb88dafa8ec5c1b412de86dfdccd9c8f">flow::net_flow::Node::sock_pacing_new_time_slice</a></div><div class="ttdeci">void sock_pacing_new_time_slice(Peer_socket::Ptr sock, const Fine_time_pt &amp;now)</div><div class="ttdoc">async_sock_low_lvl_packet_send_paced() pacing helper: Resets the socket's Send_pacing_data structure ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00765">low_lvl_io.cpp:765</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afe70a0c32695e417e7a09e0ba773f151"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">flow::net_flow::Node::rst_and_close_connection_immediately</a></div><div class="ttdeci">void rst_and_close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">Asynchronously send RST to the other side of the given socket and close_connection_immediately().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05803">peer_socket.cpp:5803</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afe70a0c32695e417e7a09e0ba773f151"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">flow::net_flow::Node::rst_and_close_connection_immediately</a></div><div class="ttdeci">void rst_and_close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">Asynchronously send RST to the other side of the given socket and close_connection_immediately().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05809">peer_socket.cpp:5809</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::State::S_CLOSED</a></div><div class="ttdeci">@ S_CLOSED</div><div class="ttdoc">Neither future reads nor writes are possible, AND Node has disowned the Peer_socket.</div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a797a524b73e2626fcfefe1be64f4d481"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">flow::net_flow::Peer_socket::order_num_t</a></div><div class="ttdeci">Sequence_number::seq_num_t order_num_t</div><div class="ttdoc">Short-hand for order number type. 0 is reserved. Caution: Keep in sync with Drop_timer::packet_id_t.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00905">peer_socket.hpp:905</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab7dc3b752b67295c82919c2f87aed60b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::iterator Sent_pkt_ordered_by_when_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00946">peer_socket.hpp:946</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a797a524b73e2626fcfefe1be64f4d481"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">flow::net_flow::Peer_socket::order_num_t</a></div><div class="ttdeci">Sequence_number::seq_num_t order_num_t</div><div class="ttdoc">Short-hand for order number type. 0 is reserved. Caution: Keep in sync with Drop_timer::packet_id_t.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00906">peer_socket.hpp:906</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab7dc3b752b67295c82919c2f87aed60b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::iterator Sent_pkt_ordered_by_when_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00947">peer_socket.hpp:947</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html">flow::net_flow::Sequence_number</a></div><div class="ttdoc">An internal net_flow sequence number identifying a piece of data.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00125">seq_num.hpp:126</a></div></div>
 <div class="ttc" id="aclassflow_1_1util_1_1Shared__ptr__alias__holder_html_aa4f1af88393042e60159a3a67f0accbc"><div class="ttname"><a href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Peer_socket &gt; &gt;::Ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Peer_socket &gt; Ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to mutable values of type Target_type::element_type (a-la T*).</div><div class="ttdef"><b>Definition:</b> <a href="shared__ptr__alias__holder_8hpp_source.html#l00118">shared_ptr_alias_holder.hpp:118</a></div></div>
 <div class="ttc" id="aclassflow_1_1util_1_1Shared__ptr__alias__holder_html_aef7998db71c60eeb5d1e3d1a97c14886"><div class="ttname"><a href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::Const_ptr</a></div><div class="ttdeci">Const_target_ptr Const_ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to immutable values of type Target_type::element_type (a-la T cons...</div><div class="ttdef"><b>Definition:</b> <a href="shared__ptr__alias__holder_8hpp_source.html#l00120">shared_ptr_alias_holder.hpp:120</a></div></div>
@@ -1229,20 +1229,20 @@
 <div class="ttc" id="anamespaceflow_1_1util_html_adf23368210219716b6fd22d15b765cb6"><div class="ttname"><a href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">flow::util::Task_engine</a></div><div class="ttdeci">boost::asio::io_service Task_engine</div><div class="ttdoc">Short-hand for boost.asio event service, the central class of boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00135">util_fwd.hpp:135</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af09888b3a8feaff209b6625e493bc338"><div class="ttname"><a href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">flow::util::Blob</a></div><div class="ttdeci">Blob_with_log_context&lt;&gt; Blob</div><div class="ttdoc">A concrete Blob_with_log_context that compile-time-disables Basic_blob::share() and the sharing API d...</div><div class="ttdef"><b>Definition:</b> <a href="blob__fwd_8hpp_source.html#l00060">blob_fwd.hpp:60</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af1b28edb7bad743c1c77f6b982cc3196"><div class="ttname"><a href="namespaceflow_1_1util.html#af1b28edb7bad743c1c77f6b982cc3196">flow::util::Udp_endpoint</a></div><div class="ttdeci">boost::asio::ip::udp::endpoint Udp_endpoint</div><div class="ttdoc">Short-hand for the UDP endpoint (IP/port) type.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00208">util_fwd.hpp:208</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
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-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html">flow::net_flow::Ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01019">low_lvl_packet.hpp:1020</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html">flow::net_flow::Data_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level DATA packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00892">low_lvl_packet.hpp:893</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a6e16e9c355c6d5e2acff5f9bdc24f397"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">flow::net_flow::Low_lvl_packet::Const_buffer_sequence</a></div><div class="ttdeci">std::vector&lt; Const_buffer &gt; Const_buffer_sequence</div><div class="ttdoc">Short-hand for sequence of immutable buffers; i.e., a sequence of 1 or more scattered areas in memory...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00188">low_lvl_packet.hpp:188</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html">flow::net_flow::Ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01020">low_lvl_packet.hpp:1021</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html">flow::net_flow::Data_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level DATA packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00893">low_lvl_packet.hpp:894</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a6e16e9c355c6d5e2acff5f9bdc24f397"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">flow::net_flow::Low_lvl_packet::Const_buffer_sequence</a></div><div class="ttdeci">std::vector&lt; Const_buffer &gt; Const_buffer_sequence</div><div class="ttdoc">Short-hand for sequence of immutable buffers; i.e., a sequence of 1 or more scattered areas in memory...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00189">low_lvl_packet.hpp:189</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Node__options_html_a88c732d10914f406cc43a2c20cc800c6"><div class="ttname"><a href="structflow_1_1net__flow_1_1Node__options.html#a88c732d10914f406cc43a2c20cc800c6">flow::net_flow::Node_options::m_dyn_low_lvl_max_packet_size</a></div><div class="ttdeci">size_t m_dyn_low_lvl_max_packet_size</div><div class="ttdoc">Any incoming low-level (UDP) packet will be truncated to this size.</div><div class="ttdef"><b>Definition:</b> <a href="options_8hpp_source.html#l00553">options.hpp:553</a></div></div>
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-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">flow::net_flow::Peer_socket::Sent_packet</a></div><div class="ttdoc">Metadata (and data, if retransmission is on) for a packet that has been sent one (if retransmission i...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02177">peer_socket.hpp:2181</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a></div><div class="ttdeci">std::vector&lt; Sent_when &gt; m_sent_when</div><div class="ttdoc">Time stamps, order numbers, and other info at the times when the different attempts (including origin...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02220">peer_socket.hpp:2220</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html">flow::net_flow::Rst_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level RST packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01332">low_lvl_packet.hpp:1333</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">flow::net_flow::Peer_socket::Sent_packet</a></div><div class="ttdoc">Metadata (and data, if retransmission is on) for a packet that has been sent one (if retransmission i...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02178">peer_socket.hpp:2182</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a></div><div class="ttdeci">std::vector&lt; Sent_when &gt; m_sent_when</div><div class="ttdoc">Time stamps, order numbers, and other info at the times when the different attempts (including origin...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02221">peer_socket.hpp:2221</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html">flow::net_flow::Rst_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level RST packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01329">low_lvl_packet.hpp:1330</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Send__pacing__data_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Send__pacing__data.html">flow::net_flow::Send_pacing_data</a></div><div class="ttdoc">The current outgoing packet pacing state, including queue of low-level packets to be sent,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8hpp_source.html#l00176">low_lvl_io.hpp:178</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Send__pacing__data_html_a100a406213a5edf2854440397719bb91"><div class="ttname"><a href="structflow_1_1net__flow_1_1Send__pacing__data.html#a100a406213a5edf2854440397719bb91">flow::net_flow::Send_pacing_data::m_slice_timer</a></div><div class="ttdeci">util::Timer m_slice_timer</div><div class="ttdoc">When running, m_packet_q is non-empty, m_bytes_allowed_this_slice &lt; data size of m_packet_q....</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8hpp_source.html#l00232">low_lvl_io.hpp:232</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Send__pacing__data_html_a9cfd632911c3c4acd8e048dae28ded46"><div class="ttname"><a href="structflow_1_1net__flow_1_1Send__pacing__data.html#a9cfd632911c3c4acd8e048dae28ded46">flow::net_flow::Send_pacing_data::m_bytes_allowed_this_slice</a></div><div class="ttdeci">size_t m_bytes_allowed_this_slice</div><div class="ttdoc">This many bytes worth of DATA packets may still be sent, at this time, within the time slice defined ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8hpp_source.html#l00212">low_lvl_io.hpp:212</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/low__lvl__io_8hpp_source.html b/doc/flow_doc/generated/html_full/low__lvl__io_8hpp_source.html
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-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Send__pacing__data_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Send__pacing__data.html">flow::net_flow::Send_pacing_data</a></div><div class="ttdoc">The current outgoing packet pacing state, including queue of low-level packets to be sent,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8hpp_source.html#l00176">low_lvl_io.hpp:178</a></div></div>
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@@ -334,7 +334,7 @@
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 </div><!-- contents -->
 <!-- start footer part -->
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/low__lvl__packet_8cpp_source.html b/doc/flow_doc/generated/html_full/low__lvl__packet_8cpp_source.html
index 2d862edd6..813b1909b 100644
--- a/doc/flow_doc/generated/html_full/low__lvl__packet_8cpp_source.html
+++ b/doc/flow_doc/generated/html_full/low__lvl__packet_8cpp_source.html
@@ -1170,86 +1170,86 @@
 <div class="ttc" id="anamespaceflow_1_1log_html_a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b"><div class="ttname"><a href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::Sev::S_TRACE</a></div><div class="ttdeci">@ S_TRACE</div><div class="ttdoc">Message indicates any condition that may occur with great frequency (thus verbose if logged).</div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html"><div class="ttname"><a href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div><div class="ttdoc">Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8cpp_source.html#l00024">node.cpp:25</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_a079d8cd87a68d1c5f04c6bce71f0061d"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow::net_flow::flow_port_t</a></div><div class="ttdeci">uint16_t flow_port_t</div><div class="ttdoc">Logical Flow port type (analogous to a UDP/TCP port in spirit but in no way relevant to UDP/TCP).</div><div class="ttdef"><b>Definition:</b> <a href="net__flow__fwd_8hpp_source.html#l00054">net_flow_fwd.hpp:54</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a16357344c21456b86b7de3085e2661a2"><div class="ttname"><a href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">flow::util::buffers_dump_string</a></div><div class="ttdeci">std::string buffers_dump_string(const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Identical to buffers_to_ostream() but returns an std::string instead of writing to a given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00481">util.hpp:481</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_aa132928b364caefca5c3821e019924bf"><div class="ttname"><a href="namespaceflow_1_1util.html#aa132928b364caefca5c3821e019924bf">flow::util::buffers_to_ostream</a></div><div class="ttdeci">std::ostream &amp; buffers_to_ostream(std::ostream &amp;os, const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Writes a multi- or single-line string representation of the provided binary data to an output stream,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00388">util.hpp:388</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a16357344c21456b86b7de3085e2661a2"><div class="ttname"><a href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">flow::util::buffers_dump_string</a></div><div class="ttdeci">std::string buffers_dump_string(const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Identical to buffers_to_ostream() but returns an std::string instead of writing to a given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00506">util.hpp:506</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_aa132928b364caefca5c3821e019924bf"><div class="ttname"><a href="namespaceflow_1_1util.html#aa132928b364caefca5c3821e019924bf">flow::util::buffers_to_ostream</a></div><div class="ttdeci">std::ostream &amp; buffers_to_ostream(std::ostream &amp;os, const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Writes a multi- or single-line string representation of the provided binary data to an output stream,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00413">util.hpp:413</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af09888b3a8feaff209b6625e493bc338"><div class="ttname"><a href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">flow::util::Blob</a></div><div class="ttdeci">Blob_with_log_context&lt;&gt; Blob</div><div class="ttdoc">A concrete Blob_with_log_context that compile-time-disables Basic_blob::share() and the sharing API d...</div><div class="ttdef"><b>Definition:</b> <a href="blob__fwd_8hpp_source.html#l00060">blob_fwd.hpp:60</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00386">common.hpp:386</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00391">common.hpp:391</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off_html_ab8f16251d8bd583cf6ad114a56b10463"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#ab8f16251d8bd583cf6ad114a56b10463">flow::net_flow::Ack_packet::Individual_ack_rexmit_off::Individual_ack_rexmit_off</a></div><div class="ttdeci">Individual_ack_rexmit_off(const Sequence_number &amp;seq_num, ack_delay_t delay)</div><div class="ttdoc">Constructs object.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l01060">low_lvl_packet.cpp:1060</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on_html_ac75ea2d2954f67520dd4ed4c800c06c8"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#ac75ea2d2954f67520dd4ed4c800c06c8">flow::net_flow::Ack_packet::Individual_ack_rexmit_on::Individual_ack_rexmit_on</a></div><div class="ttdeci">Individual_ack_rexmit_on(const Sequence_number &amp;seq_num, unsigned int rexmit_id, ack_delay_t delay)</div><div class="ttdoc">Constructs object.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l01068">low_lvl_packet.cpp:1068</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></div><div class="ttdoc">Specifies the incoming (post-deserialization) acknowledgment of a single received Data_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01194">low_lvl_packet.hpp:1196</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_abbd41e30089125f67667b39f5756c275"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#abbd41e30089125f67667b39f5756c275">flow::net_flow::Ack_packet::Individual_ack::Ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Individual_ack &gt; Ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to mutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01200">low_lvl_packet.hpp:1200</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html">flow::net_flow::Ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01019">low_lvl_packet.hpp:1020</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a232e22e04614ead19fa4531a89838015"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a232e22e04614ead19fa4531a89838015">flow::net_flow::Ack_packet::m_rcv_acked_packets</a></div><div class="ttdeci">std::vector&lt; boost::shared_ptr&lt; Individual_ack &gt; &gt; m_rcv_acked_packets</div><div class="ttdoc">List of incoming (post-deserialization of ACK) acknowledgments of DATA packets, each identified by it...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01115">low_lvl_packet.hpp:1115</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a374da5eef60c7d8a4085b41cf7b2adfe"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">flow::net_flow::Ack_packet::ack_delay_t</a></div><div class="ttdeci">uint64_t ack_delay_t</div><div class="ttdoc">Type used to store the ACK delay for a given individual acknowledged packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01039">low_lvl_packet.hpp:1039</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></div><div class="ttdoc">Specifies the incoming (post-deserialization) acknowledgment of a single received Data_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01195">low_lvl_packet.hpp:1197</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_abbd41e30089125f67667b39f5756c275"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#abbd41e30089125f67667b39f5756c275">flow::net_flow::Ack_packet::Individual_ack::Ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Individual_ack &gt; Ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to mutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01201">low_lvl_packet.hpp:1201</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html">flow::net_flow::Ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01020">low_lvl_packet.hpp:1021</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a232e22e04614ead19fa4531a89838015"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a232e22e04614ead19fa4531a89838015">flow::net_flow::Ack_packet::m_rcv_acked_packets</a></div><div class="ttdeci">std::vector&lt; boost::shared_ptr&lt; Individual_ack &gt; &gt; m_rcv_acked_packets</div><div class="ttdoc">List of incoming (post-deserialization of ACK) acknowledgments of DATA packets, each identified by it...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01116">low_lvl_packet.hpp:1116</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a374da5eef60c7d8a4085b41cf7b2adfe"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">flow::net_flow::Ack_packet::ack_delay_t</a></div><div class="ttdeci">uint64_t ack_delay_t</div><div class="ttdoc">Type used to store the ACK delay for a given individual acknowledged packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01040">low_lvl_packet.hpp:1040</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a49659e0e672d324ad17e2f4240604b49"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a49659e0e672d324ad17e2f4240604b49">flow::net_flow::Ack_packet::to_ostream</a></div><div class="ttdeci">std::ostream &amp; to_ostream(std::ostream &amp;os, bool verbose) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00996">low_lvl_packet.cpp:996</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a56b2560b87540a3cf5c7bba9e9666641"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a56b2560b87540a3cf5c7bba9e9666641">flow::net_flow::Ack_packet::m_rcv_wnd</a></div><div class="ttdeci">rcv_wnd_t m_rcv_wnd</div><div class="ttdoc">Current receive window (remaining Receive buffer size) of the ACK sender.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01051">low_lvl_packet.hpp:1051</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a56b2560b87540a3cf5c7bba9e9666641"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a56b2560b87540a3cf5c7bba9e9666641">flow::net_flow::Ack_packet::m_rcv_wnd</a></div><div class="ttdeci">rcv_wnd_t m_rcv_wnd</div><div class="ttdoc">Current receive window (remaining Receive buffer size) of the ACK sender.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01052">low_lvl_packet.hpp:1052</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a5af95ad4de8253b613d55a99d41cb430"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a5af95ad4de8253b613d55a99d41cb430">flow::net_flow::Ack_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet) override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00785">low_lvl_packet.cpp:785</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a878162c8ec16ab4ee1b3ea4bbe4b51c0"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a878162c8ec16ab4ee1b3ea4bbe4b51c0">flow::net_flow::Ack_packet::serialize_to_raw_data</a></div><div class="ttdeci">size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00321">low_lvl_packet.cpp:321</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_aae3806ebf76e628494fd6f7681c01409"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#aae3806ebf76e628494fd6f7681c01409">flow::net_flow::Ack_packet::m_rcv_acked_packets_rexmit_out_size</a></div><div class="ttdeci">uint16_t m_rcv_acked_packets_rexmit_out_size</div><div class="ttdoc">This is the serialized version of m_rcv_acked_packets_rexmit_{on|off}_out.size() and m_rcv_acked_pack...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01062">low_lvl_packet.hpp:1062</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_abd3bc7f9e9195bf1b4aca2cad881646c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c">flow::net_flow::Ack_packet::Ack_delay_time_unit</a></div><div class="ttdeci">Fine_duration Ack_delay_time_unit</div><div class="ttdoc">Ack_delay_time_unit(1) is the duration corresponding to the ack_delay_t value 1; and proportionally f...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01042">low_lvl_packet.hpp:1042</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_aae3806ebf76e628494fd6f7681c01409"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#aae3806ebf76e628494fd6f7681c01409">flow::net_flow::Ack_packet::m_rcv_acked_packets_rexmit_out_size</a></div><div class="ttdeci">uint16_t m_rcv_acked_packets_rexmit_out_size</div><div class="ttdoc">This is the serialized version of m_rcv_acked_packets_rexmit_{on|off}_out.size() and m_rcv_acked_pack...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01063">low_lvl_packet.hpp:1063</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_abd3bc7f9e9195bf1b4aca2cad881646c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c">flow::net_flow::Ack_packet::Ack_delay_time_unit</a></div><div class="ttdeci">Fine_duration Ack_delay_time_unit</div><div class="ttdoc">Ack_delay_time_unit(1) is the duration corresponding to the ack_delay_t value 1; and proportionally f...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01043">low_lvl_packet.hpp:1043</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_acef61dca75aa49d653acdfd96b065723"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#acef61dca75aa49d653acdfd96b065723">flow::net_flow::Ack_packet::Ack_packet</a></div><div class="ttdeci">Ack_packet(log::Logger *logger_ptr)</div><div class="ttdoc">The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00096">low_lvl_packet.cpp:96</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html">flow::net_flow::Data_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level DATA packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00892">low_lvl_packet.hpp:893</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a07cf37a89d947f40354a79a885407567"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a07cf37a89d947f40354a79a885407567">flow::net_flow::Data_packet::m_data_size_raw</a></div><div class="ttdeci">uint16_t m_data_size_raw</div><div class="ttdoc">This is the serialized version of m_data.size() (see m_data).</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00925">low_lvl_packet.hpp:925</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html">flow::net_flow::Data_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level DATA packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00893">low_lvl_packet.hpp:894</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a07cf37a89d947f40354a79a885407567"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a07cf37a89d947f40354a79a885407567">flow::net_flow::Data_packet::m_data_size_raw</a></div><div class="ttdeci">uint16_t m_data_size_raw</div><div class="ttdoc">This is the serialized version of m_data.size() (see m_data).</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00926">low_lvl_packet.hpp:926</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a0bfa19b23164c8189c05d3c2417cf23b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a0bfa19b23164c8189c05d3c2417cf23b">flow::net_flow::Data_packet::to_ostream</a></div><div class="ttdeci">std::ostream &amp; to_ostream(std::ostream &amp;os, bool verbose) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00968">low_lvl_packet.cpp:968</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a0c5cb656fd8fd513d66a349285558900"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a0c5cb656fd8fd513d66a349285558900">flow::net_flow::Data_packet::Data_packet</a></div><div class="ttdeci">Data_packet(log::Logger *logger_ptr)</div><div class="ttdoc">The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00088">low_lvl_packet.cpp:88</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a94d817529e94ac88ee2cea6f3dd1badb"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a94d817529e94ac88ee2cea6f3dd1badb">flow::net_flow::Data_packet::m_seq_num</a></div><div class="ttdeci">Sequence_number m_seq_num</div><div class="ttdoc">The sequence number of the first byte in the payload; i.e., of m_data.front(), a/k/a m_data[0].</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00910">low_lvl_packet.hpp:910</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_ac149f87b8915213857c707b0f3562ef0"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#ac149f87b8915213857c707b0f3562ef0">flow::net_flow::Data_packet::m_rexmit_id</a></div><div class="ttdeci">rexmit_id_t m_rexmit_id</div><div class="ttdoc">Retransmit counter of the DATA packet being sent.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00916">low_lvl_packet.hpp:916</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a94d817529e94ac88ee2cea6f3dd1badb"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a94d817529e94ac88ee2cea6f3dd1badb">flow::net_flow::Data_packet::m_seq_num</a></div><div class="ttdeci">Sequence_number m_seq_num</div><div class="ttdoc">The sequence number of the first byte in the payload; i.e., of m_data.front(), a/k/a m_data[0].</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00911">low_lvl_packet.hpp:911</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_ac149f87b8915213857c707b0f3562ef0"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#ac149f87b8915213857c707b0f3562ef0">flow::net_flow::Data_packet::m_rexmit_id</a></div><div class="ttdeci">rexmit_id_t m_rexmit_id</div><div class="ttdoc">Retransmit counter of the DATA packet being sent.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00917">low_lvl_packet.hpp:917</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_ac2a390c4cb7abfeec7c658c866dbfc06"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#ac2a390c4cb7abfeec7c658c866dbfc06">flow::net_flow::Data_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet) override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00655">low_lvl_packet.cpp:655</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_ad76ae289cd958d62bb5cd29b9f9e894d"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d">flow::net_flow::Data_packet::m_data</a></div><div class="ttdeci">util::Blob m_data</div><div class="ttdoc">The payload.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00933">low_lvl_packet.hpp:933</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_ad76ae289cd958d62bb5cd29b9f9e894d"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d">flow::net_flow::Data_packet::m_data</a></div><div class="ttdeci">util::Blob m_data</div><div class="ttdoc">The payload.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00934">low_lvl_packet.hpp:934</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_add582f24dd9442f987f2c458e4b5d3d7"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#add582f24dd9442f987f2c458e4b5d3d7">flow::net_flow::Data_packet::serialize_to_raw_data</a></div><div class="ttdeci">size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00279">low_lvl_packet.cpp:279</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data_html_a22799fa7c7948cc2f35a411523c12479"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a22799fa7c7948cc2f35a411523c12479">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_opt_rexmit_on_raw</a></div><div class="ttdeci">uint8_t m_opt_rexmit_on_raw</div><div class="ttdoc">This is the serialized version of the multi-byte bool Low_lvl_packet::m_opt_rexmit_on.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00447">low_lvl_packet.hpp:447</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data_html_a244e09a3f5318c25a120e3d29379adc8"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a244e09a3f5318c25a120e3d29379adc8">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_reserved2</a></div><div class="ttdeci">const uint16_t m_reserved2</div><div class="ttdoc">Unused space reserved for future use, ensuring correct alignment of other fields and headers.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00454">low_lvl_packet.hpp:454</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data_html_a22799fa7c7948cc2f35a411523c12479"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a22799fa7c7948cc2f35a411523c12479">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_opt_rexmit_on_raw</a></div><div class="ttdeci">uint8_t m_opt_rexmit_on_raw</div><div class="ttdoc">This is the serialized version of the multi-byte bool Low_lvl_packet::m_opt_rexmit_on.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00448">low_lvl_packet.hpp:448</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data_html_a244e09a3f5318c25a120e3d29379adc8"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a244e09a3f5318c25a120e3d29379adc8">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_reserved2</a></div><div class="ttdeci">const uint16_t m_reserved2</div><div class="ttdoc">Unused space reserved for future use, ensuring correct alignment of other fields and headers.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00455">low_lvl_packet.hpp:455</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data_html_a7ae37084e00d375a749c3730f77e6072"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a7ae37084e00d375a749c3730f77e6072">flow::net_flow::Low_lvl_packet::Aux_raw_data::Aux_raw_data</a></div><div class="ttdeci">Aux_raw_data()</div><div class="ttdoc">Constructs a mostly-uninitialized object, except for the const member(s), if any.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00048">low_lvl_packet.cpp:48</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html">flow::net_flow::Low_lvl_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00164">low_lvl_packet.hpp:170</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a01ff17bec742d9e363aea2ecd23f2f72"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">flow::net_flow::Low_lvl_packet::rcv_wnd_t</a></div><div class="ttdeci">uint32_t rcv_wnd_t</div><div class="ttdoc">Type used to store the size of m_rcv_wnd member in a couple of different packet types.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00202">low_lvl_packet.hpp:202</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a11e7750d22415a381e23112062f7ca74"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">flow::net_flow::Low_lvl_packet::rexmit_id_t</a></div><div class="ttdeci">uint8_t rexmit_id_t</div><div class="ttdoc">Type used to store the retransmission count in DATA and ACK packets.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00199">low_lvl_packet.hpp:199</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a1295f44e5a4ebdece11ed6d0eea0fbaa"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a1295f44e5a4ebdece11ed6d0eea0fbaa">flow::net_flow::Low_lvl_packet::m_aux_raw_data</a></div><div class="ttdeci">Aux_raw_data m_aux_raw_data</div><div class="ttdoc">Auxilliary data area necessary for serialize_to_raw_data() to work.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00571">low_lvl_packet.hpp:571</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html">flow::net_flow::Low_lvl_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00165">low_lvl_packet.hpp:171</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a01ff17bec742d9e363aea2ecd23f2f72"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">flow::net_flow::Low_lvl_packet::rcv_wnd_t</a></div><div class="ttdeci">uint32_t rcv_wnd_t</div><div class="ttdoc">Type used to store the size of m_rcv_wnd member in a couple of different packet types.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00203">low_lvl_packet.hpp:203</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a11e7750d22415a381e23112062f7ca74"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">flow::net_flow::Low_lvl_packet::rexmit_id_t</a></div><div class="ttdeci">uint8_t rexmit_id_t</div><div class="ttdoc">Type used to store the retransmission count in DATA and ACK packets.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00200">low_lvl_packet.hpp:200</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a1295f44e5a4ebdece11ed6d0eea0fbaa"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a1295f44e5a4ebdece11ed6d0eea0fbaa">flow::net_flow::Low_lvl_packet::m_aux_raw_data</a></div><div class="ttdeci">Aux_raw_data m_aux_raw_data</div><div class="ttdoc">Auxilliary data area necessary for serialize_to_raw_data() to work.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00572">low_lvl_packet.hpp:572</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a186d7dae0c4b4402aed22a25d595ed30"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a186d7dae0c4b4402aed22a25d595ed30">flow::net_flow::Low_lvl_packet::create_from_raw_data_packet</a></div><div class="ttdeci">static Ptr create_from_raw_data_packet(log::Logger *logger_ptr, util::Blob *raw_packet, bool prefer_no_move)</div><div class="ttdoc">Constructs packet on the heap with values determined by the given raw binary data as presumably recei...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00381">low_lvl_packet.cpp:381</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a37c9c6b04502d73defb803c1efabdf63"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a37c9c6b04502d73defb803c1efabdf63">flow::net_flow::Low_lvl_packet::type_id_to_str</a></div><div class="ttdeci">static const std::string &amp; type_id_to_str(const std::type_index &amp;type_id)</div><div class="ttdoc">Returns a brief (a few characters) string description of the given packet type given as type_index(ty...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00108">low_lvl_packet.cpp:108</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a3e7152648c0098491512da590b47b464"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a3e7152648c0098491512da590b47b464">flow::net_flow::Low_lvl_packet::m_packed</a></div><div class="ttdeci">struct flow::net_flow::Low_lvl_packet::@7 m_packed</div><div class="ttdoc">Packed group affected by #pragma pack.</div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a47e9143f0b9dd4ae9d8c5ace666d5539"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a47e9143f0b9dd4ae9d8c5ace666d5539">flow::net_flow::Low_lvl_packet::to_ostream</a></div><div class="ttdeci">virtual std::ostream &amp; to_ostream(std::ostream &amp;os, bool verbose=false) const</div><div class="ttdoc">Writes a multi-line representation of *this to an output stream.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00912">low_lvl_packet.cpp:912</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a4a0585d1abae63af891161f1719bc582"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a4a0585d1abae63af891161f1719bc582">flow::net_flow::Low_lvl_packet::Low_lvl_packet</a></div><div class="ttdeci">Low_lvl_packet(log::Logger *logger_ptr)</div><div class="ttdoc">Constructs packet with uninitialized (essentially random) values.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00054">low_lvl_packet.cpp:54</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a521afb86aaf334b871c9226ce503c508"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a521afb86aaf334b871c9226ce503c508">flow::net_flow::Low_lvl_packet::S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</a></div><div class="ttdeci">static const boost::unordered_map&lt; std::type_index, Packet_type_info &gt; S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</div><div class="ttdoc">Mapping from native typeid(), a/k/a packet type (for all possible packet types), to the set of proper...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00558">low_lvl_packet.hpp:558</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a521afb86aaf334b871c9226ce503c508"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a521afb86aaf334b871c9226ce503c508">flow::net_flow::Low_lvl_packet::S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</a></div><div class="ttdeci">static const boost::unordered_map&lt; std::type_index, Packet_type_info &gt; S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</div><div class="ttdoc">Mapping from native typeid(), a/k/a packet type (for all possible packet types), to the set of proper...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00559">low_lvl_packet.hpp:559</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a5856c405aa18f4f54a35515786befea8"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a5856c405aa18f4f54a35515786befea8">flow::net_flow::Low_lvl_packet::serialize_to_raw_data_and_log</a></div><div class="ttdeci">size_t serialize_to_raw_data_and_log(Const_buffer_sequence *raw_bufs) const</div><div class="ttdoc">Identical to serialize_to_raw_data() but adds log-level-appropriate logging after the operation.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00130">low_lvl_packet.cpp:130</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a6b3de1eb7a337002440ecd1ab0ad058f"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6b3de1eb7a337002440ecd1ab0ad058f">flow::net_flow::Low_lvl_packet::type_id_native_to_raw</a></div><div class="ttdeci">static const uint8_t &amp; type_id_native_to_raw(const std::type_info &amp;type_id)</div><div class="ttdoc">Helper that looks up the Packet_type_info::m_raw_type_id value for the given typeid(p),...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00119">low_lvl_packet.cpp:119</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a6e16e9c355c6d5e2acff5f9bdc24f397"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">flow::net_flow::Low_lvl_packet::Const_buffer_sequence</a></div><div class="ttdeci">std::vector&lt; Const_buffer &gt; Const_buffer_sequence</div><div class="ttdoc">Short-hand for sequence of immutable buffers; i.e., a sequence of 1 or more scattered areas in memory...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00188">low_lvl_packet.hpp:188</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a6e16e9c355c6d5e2acff5f9bdc24f397"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">flow::net_flow::Low_lvl_packet::Const_buffer_sequence</a></div><div class="ttdeci">std::vector&lt; Const_buffer &gt; Const_buffer_sequence</div><div class="ttdoc">Short-hand for sequence of immutable buffers; i.e., a sequence of 1 or more scattered areas in memory...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00189">low_lvl_packet.hpp:189</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a720372b60ae7b7ee23c9f2d6775c7de1"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a720372b60ae7b7ee23c9f2d6775c7de1">flow::net_flow::Low_lvl_packet::type_to_ostream</a></div><div class="ttdeci">std::ostream &amp; type_to_ostream(std::ostream &amp;os) const</div><div class="ttdoc">Writes a brief representation of typeid(*this) – i.e., the packet type (ACK, RST, etc....</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l01053">low_lvl_packet.cpp:1053</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a7f4fd9ce69e293477e96fbad0a2298ed"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a7f4fd9ce69e293477e96fbad0a2298ed">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a></div><div class="ttdeci">const Function&lt; std::ostream &amp;(std::ostream &amp;)&gt; m_type_ostream_manip</div><div class="ttdoc">ostream manipulator (argument to ostream &lt;&lt;) that will output packet's type (&quot;ACK&quot;,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00245">low_lvl_packet.hpp:245</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a872044469cfa05a3abf3f9ab1c7cf03b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a872044469cfa05a3abf3f9ab1c7cf03b">flow::net_flow::Low_lvl_packet::security_token_t</a></div><div class="ttdeci">uint64_t security_token_t</div><div class="ttdoc">Type used for m_security_token member of a couple different packet types.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00191">low_lvl_packet.hpp:191</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a7f4fd9ce69e293477e96fbad0a2298ed"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a7f4fd9ce69e293477e96fbad0a2298ed">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a></div><div class="ttdeci">const Function&lt; std::ostream &amp;(std::ostream &amp;)&gt; m_type_ostream_manip</div><div class="ttdoc">ostream manipulator (argument to ostream &lt;&lt;) that will output packet's type (&quot;ACK&quot;,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00246">low_lvl_packet.hpp:246</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a872044469cfa05a3abf3f9ab1c7cf03b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a872044469cfa05a3abf3f9ab1c7cf03b">flow::net_flow::Low_lvl_packet::security_token_t</a></div><div class="ttdeci">uint64_t security_token_t</div><div class="ttdoc">Type used for m_security_token member of a couple different packet types.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00192">low_lvl_packet.hpp:192</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_aa2b4697824bd3ca88970c67d9a1f3e76"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76">flow::net_flow::Low_lvl_packet::serialize_to_raw_data</a></div><div class="ttdeci">virtual size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const =0</div><div class="ttdoc">Serializes the current logical packet data from *this into the given Const_buffer_sequence,...</div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_ab735867345855ad43e5e3ff788cf5a9a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">flow::net_flow::Low_lvl_packet::Const_buffer</a></div><div class="ttdeci">boost::asio::const_buffer Const_buffer</div><div class="ttdoc">Short-hand for boost.asio immutable buffer, which essentially is a pointer to and length of a memory ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00179">low_lvl_packet.hpp:179</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_ab735867345855ad43e5e3ff788cf5a9a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">flow::net_flow::Low_lvl_packet::Const_buffer</a></div><div class="ttdeci">boost::asio::const_buffer Const_buffer</div><div class="ttdoc">Short-hand for boost.asio immutable buffer, which essentially is a pointer to and length of a memory ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00180">low_lvl_packet.hpp:180</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_ac7b199700e34d3cc17a7653d7bbb134b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ac7b199700e34d3cc17a7653d7bbb134b">flow::net_flow::Low_lvl_packet::serialize_common_header_to_raw_data</a></div><div class="ttdeci">size_t serialize_common_header_to_raw_data(Const_buffer_sequence *raw_bufs) const</div><div class="ttdoc">Helper for serialize_to_raw_data() implementations in sub-types that encodes the header common to all...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00159">low_lvl_packet.cpp:159</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_acc2a10d19e8e54c88518ad2e02a08b68"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#acc2a10d19e8e54c88518ad2e02a08b68">flow::net_flow::Low_lvl_packet::m_opt_rexmit_on</a></div><div class="ttdeci">bool m_opt_rexmit_on</div><div class="ttdoc">Option indicating whether this connection is using retransmission or not.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00222">low_lvl_packet.hpp:222</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html">flow::net_flow::Rst_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level RST packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01332">low_lvl_packet.hpp:1333</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_acc2a10d19e8e54c88518ad2e02a08b68"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#acc2a10d19e8e54c88518ad2e02a08b68">flow::net_flow::Low_lvl_packet::m_opt_rexmit_on</a></div><div class="ttdeci">bool m_opt_rexmit_on</div><div class="ttdoc">Option indicating whether this connection is using retransmission or not.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00223">low_lvl_packet.hpp:223</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html">flow::net_flow::Rst_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level RST packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01329">low_lvl_packet.hpp:1330</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html_a06e98008f816699dcd5c8890914a6b3f"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html#a06e98008f816699dcd5c8890914a6b3f">flow::net_flow::Rst_packet::serialize_to_raw_data</a></div><div class="ttdeci">size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00375">low_lvl_packet.cpp:375</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html_a171bf247cad883b73b4b76957dfe4994"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html#a171bf247cad883b73b4b76957dfe4994">flow::net_flow::Rst_packet::Rst_packet</a></div><div class="ttdeci">Rst_packet(log::Logger *logger_ptr)</div><div class="ttdoc">The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00102">low_lvl_packet.cpp:102</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html_ae1292deb7eec0f01d3ff111977ff5693"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html#ae1292deb7eec0f01d3ff111977ff5693">flow::net_flow::Rst_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet) override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00893">low_lvl_packet.cpp:893</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html">flow::net_flow::Syn_ack_ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK_ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00791">low_lvl_packet.hpp:792</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html">flow::net_flow::Syn_ack_ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK_ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00792">low_lvl_packet.hpp:793</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_a0f2665713bcedc20db1365412630ff6f"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a0f2665713bcedc20db1365412630ff6f">flow::net_flow::Syn_ack_ack_packet::to_ostream</a></div><div class="ttdeci">std::ostream &amp; to_ostream(std::ostream &amp;os, bool verbose) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00958">low_lvl_packet.cpp:958</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_a15bb98c2c3c00dc2c2db7f76a932d65c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a15bb98c2c3c00dc2c2db7f76a932d65c">flow::net_flow::Syn_ack_ack_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet) override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00614">low_lvl_packet.cpp:614</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_a1a0bad5bc4e9c966709f7bc8a2469bf6"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a1a0bad5bc4e9c966709f7bc8a2469bf6">flow::net_flow::Syn_ack_ack_packet::m_packed</a></div><div class="ttdeci">struct flow::net_flow::Syn_ack_ack_packet::@9 m_packed</div><div class="ttdoc">Packed group affected by #pragma pack.</div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_a817e22c18b67db0e2e4794b962e4365d"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a817e22c18b67db0e2e4794b962e4365d">flow::net_flow::Syn_ack_ack_packet::serialize_to_raw_data</a></div><div class="ttdeci">size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00259">low_lvl_packet.cpp:259</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_a86707d5efb4b1b5ad056a4255976e262"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a86707d5efb4b1b5ad056a4255976e262">flow::net_flow::Syn_ack_ack_packet::Syn_ack_ack_packet</a></div><div class="ttdeci">Syn_ack_ack_packet(log::Logger *logger_ptr)</div><div class="ttdoc">The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00082">low_lvl_packet.cpp:82</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html">flow::net_flow::Syn_ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00677">low_lvl_packet.hpp:678</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a0535131057e39d7d9092156fa674b9d4"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a0535131057e39d7d9092156fa674b9d4">flow::net_flow::Syn_ack_packet::m_init_seq_num</a></div><div class="ttdeci">Sequence_number m_init_seq_num</div><div class="ttdoc">Same meaning as Syn_packet::m_init_seq_num but applied to the essentially independent opposite traffi...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00685">low_lvl_packet.hpp:685</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html">flow::net_flow::Syn_ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00678">low_lvl_packet.hpp:679</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a0535131057e39d7d9092156fa674b9d4"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a0535131057e39d7d9092156fa674b9d4">flow::net_flow::Syn_ack_packet::m_init_seq_num</a></div><div class="ttdeci">Sequence_number m_init_seq_num</div><div class="ttdoc">Same meaning as Syn_packet::m_init_seq_num but applied to the essentially independent opposite traffi...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00686">low_lvl_packet.hpp:686</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a1ce651745da7f488ec0bcf3d4f3467a9"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a1ce651745da7f488ec0bcf3d4f3467a9">flow::net_flow::Syn_ack_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet) override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00565">low_lvl_packet.cpp:565</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a439f09a3ae4d1a5125781e220e29c39e"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a439f09a3ae4d1a5125781e220e29c39e">flow::net_flow::Syn_ack_packet::Syn_ack_packet</a></div><div class="ttdeci">Syn_ack_packet(log::Logger *logger_ptr)</div><div class="ttdoc">The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00076">low_lvl_packet.cpp:76</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a98fae8deebcd22c8397f2585de18ce9d"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a98fae8deebcd22c8397f2585de18ce9d">flow::net_flow::Syn_ack_packet::serialize_to_raw_data</a></div><div class="ttdeci">size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00235">low_lvl_packet.cpp:235</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a9c98a61096d86196c073a232e432d03b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a9c98a61096d86196c073a232e432d03b">flow::net_flow::Syn_ack_packet::to_ostream</a></div><div class="ttdeci">std::ostream &amp; to_ostream(std::ostream &amp;os, bool verbose) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00947">low_lvl_packet.cpp:947</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_aaf2fa9221da49c413441aa8fec93ce91"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#aaf2fa9221da49c413441aa8fec93ce91">flow::net_flow::Syn_ack_packet::m_packed</a></div><div class="ttdeci">struct flow::net_flow::Syn_ack_packet::@8 m_packed</div><div class="ttdoc">Packed group affected by #pragma pack.</div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html">flow::net_flow::Syn_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00582">low_lvl_packet.hpp:583</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html">flow::net_flow::Syn_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00583">low_lvl_packet.hpp:584</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_a11ded0bc8596fb4adc815c5322e7ad26"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#a11ded0bc8596fb4adc815c5322e7ad26">flow::net_flow::Syn_packet::to_ostream</a></div><div class="ttdeci">std::ostream &amp; to_ostream(std::ostream &amp;os, bool verbose) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00925">low_lvl_packet.cpp:925</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_a943eb247f6c6a0de134e2d255feaf146"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#a943eb247f6c6a0de134e2d255feaf146">flow::net_flow::Syn_packet::Syn_packet</a></div><div class="ttdeci">Syn_packet(log::Logger *logger_ptr)</div><div class="ttdoc">The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00069">low_lvl_packet.cpp:69</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_abde26e74af2154fda517d6125353f305"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#abde26e74af2154fda517d6125353f305">flow::net_flow::Syn_packet::m_serialized_metadata</a></div><div class="ttdeci">util::Blob m_serialized_metadata</div><div class="ttdoc">Arbitrary serialized user-supplied metadata to send in SYN, where it can be deserialized by the user ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00602">low_lvl_packet.hpp:602</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_abde26e74af2154fda517d6125353f305"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#abde26e74af2154fda517d6125353f305">flow::net_flow::Syn_packet::m_serialized_metadata</a></div><div class="ttdeci">util::Blob m_serialized_metadata</div><div class="ttdoc">Arbitrary serialized user-supplied metadata to send in SYN, where it can be deserialized by the user ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00603">low_lvl_packet.hpp:603</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_aee4a61d5e344959abc89ee83ae105c8a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#aee4a61d5e344959abc89ee83ae105c8a">flow::net_flow::Syn_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet) override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00513">low_lvl_packet.cpp:513</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_af235e53d05d025b0808b2ee677c0cba4"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#af235e53d05d025b0808b2ee677c0cba4">flow::net_flow::Syn_packet::m_init_seq_num</a></div><div class="ttdeci">Sequence_number m_init_seq_num</div><div class="ttdoc">The Initial Sequence Number (ISN) of the sequence number line that the sender of this SYN will be usi...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00593">low_lvl_packet.hpp:593</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_af235e53d05d025b0808b2ee677c0cba4"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#af235e53d05d025b0808b2ee677c0cba4">flow::net_flow::Syn_packet::m_init_seq_num</a></div><div class="ttdeci">Sequence_number m_init_seq_num</div><div class="ttdoc">The Initial Sequence Number (ISN) of the sequence number line that the sender of this SYN will be usi...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00594">low_lvl_packet.hpp:594</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_af72461ac0c304cd5ea2bb3fca2b3a444"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#af72461ac0c304cd5ea2bb3fca2b3a444">flow::net_flow::Syn_packet::serialize_to_raw_data</a></div><div class="ttdeci">size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00199">low_lvl_packet.cpp:199</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/low__lvl__packet_8hpp.html b/doc/flow_doc/generated/html_full/low__lvl__packet_8hpp.html
index b0c70227e..246d19419 100644
--- a/doc/flow_doc/generated/html_full/low__lvl__packet_8hpp.html
+++ b/doc/flow_doc/generated/html_full/low__lvl__packet_8hpp.html
@@ -82,6 +82,7 @@
 <code>#include &quot;<a class="el" href="blob_8hpp_source.html">flow/util/blob.hpp</a>&quot;</code><br />
 <code>#include &lt;boost/endian.hpp&gt;</code><br />
 <code>#include &lt;limits&gt;</code><br />
+<code>#include &lt;type_traits&gt;</code><br />
 </div>
 <p><a href="low__lvl__packet_8hpp_source.html">Go to the source code of this file.</a></p>
 <table class="memberdecls">
@@ -136,7 +137,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 </html>
diff --git a/doc/flow_doc/generated/html_full/low__lvl__packet_8hpp_source.html b/doc/flow_doc/generated/html_full/low__lvl__packet_8hpp_source.html
index 481affdbb..4f23815ed 100644
--- a/doc/flow_doc/generated/html_full/low__lvl__packet_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/low__lvl__packet_8hpp_source.html
@@ -99,1391 +99,1388 @@
 <div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="preprocessor">#include &quot;<a class="code" href="blob_8hpp.html">flow/util/blob.hpp</a>&quot;</span></div>
 <div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="preprocessor">#include &lt;boost/endian.hpp&gt;</span></div>
 <div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="preprocessor">#include &lt;limits&gt;</span></div>
-<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span> </div>
-<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div>
-<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span>{</div>
-<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span><span class="comment"></span> </div>
-<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level packet structure and serves as</span></div>
-<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="comment"> * the super-type for all specific packet types, represented by derived `struct`s like Ack_packet, Rst_packet,</span></div>
-<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="comment"> * etc.</span></div>
-<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="comment"> * This `struct` and its sub-`struct` hierarchy are not too complex but nevertheless are somewhat unorthodox,</span></div>
-<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="comment"> * combining a few different paradigms.  So it&#39;s worth explaining these paradigms.</span></div>
-<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="comment"> * ### Paradigm: Data store ###</span></div>
-<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="comment"> * This is a `struct` holding the conceptual contents of a packet.  Low_lvl_packet stores common values like</span></div>
-<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="comment"> * #m_opt_rexmit_on, #m_src_port, and a few more.  Each sub-`struct` stores further values specific to each</span></div>
-<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span><span class="comment"> * packet type; for example, as of this writing, Data_packet::m_data contains the data payload of a DATA</span></div>
-<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="comment"> * packet; this would not apply, for example, to another sub-`struct` like Rst_packet, because an RST stores</span></div>
-<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="comment"> * no binary blob like that.</span></div>
-<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="comment"> * Since it&#39;s a simple data store, the applicable data members (in this `struct` and the sub-types) are</span></div>
-<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="comment"> * both public AND non-`const`.  They can be read and written at will, thus changing or reading the</span></div>
-<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="comment"> * logical contents of the packet.</span></div>
-<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="comment"> * ### Paradigm: Polymorphic type ###</span></div>
-<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="comment"> * While a simple data store, it also represents a hierarchy of possible packet types, and indeed a number</span></div>
-<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="comment"> * of important polymorphic operations are included.  Some are private/internal, and some are public.</span></div>
-<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="comment"> * A public method may not appear polymorphic by its signature, but in that case usually its implementation</span></div>
-<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="comment"> * uses non-public `virtual` methods to accomplish its tasks.  Specifically, the key APIs are:</span></div>
-<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="comment"> *   - `create_uninit_packet&lt;T&gt;()`: This creates an uninitialized sub-object of Low_lvl_packet, of actual</span></div>
-<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span><span class="comment"> *     type `T`, where `T` derives from Low_lvl_packet.  This returns a `shared_ptr&lt;T&gt;`, and any actual</span></div>
-<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span><span class="comment"> *     constructor used to implement this factory method is non-public, so the only way for a user to</span></div>
-<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span><span class="comment"> *     create a Low_lvl_packet is to get at a ref-counted pointer to it -- not a raw, unprotected pointer.  If storing</span></div>
-<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span><span class="comment"> *     only `shared_ptr&lt;T&gt;` or `Ptr` values, deletion is not something to worry about, as it will happen</span></div>
-<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span><span class="comment"> *     automatically.</span></div>
-<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span><span class="comment"> *     - Same with the other factory methods described just below.  Direct access to `Low_lvl_packet*` or</span></div>
-<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span><span class="comment"> *       `T*`, where `T` derives from Low_lvl_packet, is not allowed (but this is not enforced at compile time</span></div>
-<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span><span class="comment"> *       and, at best, via `assert()`s at runtime).</span></div>
-<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span><span class="comment"> *   - create_from_raw_data_packet(): Given a raw serialized packet, this factory method constructs</span></div>
-<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="comment"> *     a Low_lvl_packet of the appropriate polymorphic sub-type, filling it at all levels with the data</span></div>
-<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span><span class="comment"> *     deserialized for the input binary blob.  Internally, it uses some private, `virtual` action to get this</span></div>
-<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="comment"> *     to work.  At any rate, this method is used to crete a logical representation of a packet off the wire.</span></div>
-<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span><span class="comment"> *   - serialize_to_raw_data(): The opposite operation: convert existing object to raw data sendable over the wire.</span></div>
-<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span><span class="comment"> *     This uses a high-performance scatter-gather paradigm of producing a sequence of pointers and lengths to</span></div>
-<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="comment"> *     already existing data areas, avoiding copying.  This thing is `virtual` and applies to any Low_lvl_packet</span></div>
-<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="comment"> *     sub-object.</span></div>
-<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="comment"> * (Reminder: As with all polymorphism and `shared_ptr`, you may need `static_pointer_cast&lt;&gt;` to up- and down-cast</span></div>
-<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span><span class="comment"> * between Low_lvl_packet and subclasses.  Also `Low_lvl_packet::ptr_cast()` up-casts even syntactically-sugarier-ly.)</span></div>
-<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><span class="comment"> * The two basic flows are:</span></div>
-<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="comment"> *   - Call `create_uninit_packet&lt;T&gt;()` to construct a sub-`struct` of Low_lvl_packet, returned as a ref-counted</span></div>
-<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="comment"> *     pointer to `T`.  Fill out all the fields manually, accessing object via aforemetioned smart pointer.</span></div>
-<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="comment"> *     Call serialize_to_raw_data().  Pass result of latter to a boost.asio network-sending routine</span></div>
-<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="comment"> *     to send over wire.  Ensure you pass a `Ptr` to the completion handler passed to that routine, so that</span></div>
-<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span><span class="comment"> *     the Low_lvl_packet survives while being sent.  The handler can let the `Ptr` go out of scope, likely</span></div>
-<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="comment"> *     `delete`ing the Low_lvl_packet.</span></div>
-<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="comment"> *   - Receive raw packet over wire.  Call create_from_raw_data_packet() to yield a Low_lvl_packet::Ptr pointing</span></div>
-<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment"> *     to new Low_lvl_packet sub-object with all fields filled out.  Read the fields as needed to process the</span></div>
-<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment"> *     packet; store the `Ptr` if necessary; eventually removing it from all data structures will drop ref-count</span></div>
-<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment"> *     to zero, and it will be auto-`delete`d.</span></div>
-<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="comment"> * ### Other utlities ###</span></div>
-<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="comment"> * A number of (typically polymorphic) facilities exist, mainly to log these objects to `ostream`s, including</span></div>
-<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span><span class="comment"> * when logging with FLOW_LOG_TRACE() and FLOW_LOG_DATA().</span></div>
-<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment"> *   - #m_verbose_ostream_manip and #m_concise_ostream_manip are `const` data members that can be output</span></div>
-<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="comment"> *     via the usual `&lt;&lt;` operator to `ostream`s in order to output verbose and concise descriptions</span></div>
-<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="comment"> *     of any Low_lvl_packet (of any sub-`struct` type, polymorphically).</span></div>
-<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment"> *   - #m_type_ostream_manip can be similarly used to output just the packet type of any given</span></div>
-<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="comment"> *     Low_lvl_packet (producing strings like `&quot;ACK&quot;` or `&quot;RST&quot;`).</span></div>
-<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="comment"> * The implementation of these is typically some polymorphic `virtual` magic, but the use is straightforward using</span></div>
-<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span><span class="comment"> * these `ostream` manipulator data members.</span></div>
-<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="comment"> * Implementation notes</span></div>
-<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="comment"> * --------------------</span></div>
-<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment"> * ### History of approaches ###</span></div>
-<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment"> * Originally the implementation used the boost.serialization library for packet serialization, but</span></div>
-<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="comment"> * it turned out to consume way too much CPU time which consequently limited the maximum</span></div>
-<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="comment"> * throughput at high speeds.  The next implementation used the traditional approach based on</span></div>
-<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment"> * &quot;packed&quot; structures (structures without any padding), in one big `struct Low_lvl_packet`.</span></div>
-<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment"> * However, I deemed the latter setup too C-like (yet simultaneously</span></div>
-<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment"> * not C-like enough, in that no unions were used, hence RAM was wasted despite the C-like approach).</span></div>
-<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment"> * Ultimately, the current version of the implementation came about, with its polymorphic `struct` hierarchy</span></div>
-<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment"> * and abstract Low_lvl_packet `struct` (which, in the previous iteration, simply contained everything</span></div>
-<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment"> * about every type, complete with an `enum Type` instead of using C++&#39;s built-in `typeid`, as the current</span></div>
-<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment"> * version uses).</span></div>
-<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment"> * While the above evolution was more about coding style philosophy (from a single type and a type selector</span></div>
-<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment"> * `enum` to a polymorphic hierarchy and `typeid`), the other evolution concerned the way serialization</span></div>
-<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span><span class="comment"> * (for sending over the write) worked.  At first, as mentioned, there were the logical values (which were</span></div>
-<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment"> * public and non-`const`), and there were private packed `struct`s into which the logical values were</span></div>
-<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment"> * placed (with transformation for endianness and other things) at serialization time; finally then assembling</span></div>
-<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="comment"> * a newly allocated single binary buffer, those packed `struct`s copied into it.  Not bad -- rather verbose</span></div>
-<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="comment"> * having all those types defined, but not bad -- but it did involve a new buffer and linear-time copying into</span></div>
-<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment"> * that buffer.  This seemed like a shame.</span></div>
-<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment"> * This led to the final improvement, which was to turn the serialization function into one that generates</span></div>
-<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment"> * a `boost::asio::const_buffer_sequence`, basically a sequence of pointers and associated lengths of areas</span></div>
-<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment"> * already present in memory.  In most cases (with a couple small exceptions), the stored public data members</span></div>
-<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment"> * (e.g., #m_src_port and Data_packet::m_data) could simply have their addresses and lengths taken and placed</span></div>
-<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment"> * into the `const_buffer_sequence` -- no buffer copying involved.  This should achieve a nice performance</span></div>
-<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="comment"> * improvement.  The removal of things like `struct Common_header` and `struct Ack_header` is a good bonus</span></div>
-<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="comment"> * coding-wise, too.</span></div>
-<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment"> * (There is a caveat there.  While no issue for the true performance culprits, namely Data_packet::m_data,</span></div>
-<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="comment"> * the various multi-byte integer values like #m_src_port technically have to undergo endianness conversion</span></div>
-<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment"> * during serialization.  So technically simply taking an address and size is not enough; the value needs</span></div>
-<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment"> * to be flipped *potentially*.  In reality, though, all relevant architectures are such that we chose</span></div>
-<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="comment"> * identical network byte order as memory byte order, making no flipping necessary in practice.  Of course,</span></div>
-<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span><span class="comment"> * if we spread to an architecture where this is not true, everything will explode.  However, a compile-time</span></div>
-<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="comment"> * assertion would warn us of this, and a nearby comment will instruct on how to deal with the problem, in the</span></div>
-<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="comment"> * unlikely case it were to appear.  [Little-endian is rather universal these days.])</span></div>
-<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="comment"> * ### Packed structures, stored integers, and alignment ###</span></div>
-<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span><span class="comment"> * When 2 or more contiguous data members are used in serializing (serialize_to_raw_data() or overridden</span></div>
-<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="comment"> * version), they are packed together via `&quot;#pragma pack&quot;`.  (Note that this affect entire `struct`s at a time</span></div>
-<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span><span class="comment"> * only; hence we need to use some anonymously-typed grouping `struct`s named `m_packed`.)</span></div>
-<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span><span class="comment"> * Numeric values are stored as unsigned integers, which is the most portable choice for serializing.</span></div>
-<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span><span class="comment"> * Booleans are serialized as bytes for compactness.</span></div>
-<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment"> * Some effort is made to keep fields aligned along word edges when serializing.  There is not too much</span></div>
-<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment"> * of that as of this writing, but we should remain vigilant as packet formats become more complex over time.</span></div>
-<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span><span class="comment"> * @todo With C++11, some lines of code could be eliminated by using `using` for Low_lvl_packet sub-types</span></div>
-<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="comment"> * to inherit the constructor(s) of Low_lvl_packet.  (For some of the sub-types an explicit constructor</span></div>
-<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span><span class="comment"> * would still be necessary, but it would just shadow the inherited one, which is fine and still saves lines</span></div>
-<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="comment"> * in the other sub-types.)  However, for now I&#39;ve left it as-is, partially to be friendly to the Doxygen</span></div>
-<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span><span class="comment"> * documentation generator, and partially to make the interface easy to read.  Still, it may be better the other</span></div>
-<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment"> * way.</span></div>
-<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">  164</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a> :</div>
-<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1util_1_1Null__interface.html">util::Null_interface</a>,</div>
-<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>  <span class="comment">// Endow us with shared_ptr&lt;&gt;s ::Ptr and ::Const_ptr (syntactic sugar).</span></div>
-<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html">util::Shared_ptr_alias_holder</a>&lt;boost::shared_ptr&lt;Low_lvl_packet&gt;&gt;,</div>
-<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1log_1_1Log__context.html">log::Log_context</a>,</div>
-<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>  <span class="keyword">private</span> boost::noncopyable</div>
-<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>{</div>
-<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>  <span class="comment">// Types.</span></div>
-<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span><span class="comment"></span> </div>
-<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span><span class="comment">   * Short-hand for boost.asio immutable buffer, which essentially is a pointer to and length of a memory area.</span></div>
-<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span><span class="comment">   * @todo Consider moving alias Low_lvl_packet::Const_buffer to `util` namespace or even outside it, as it is</span></div>
-<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span><span class="comment">   * used commonly (or `boost::asio::const_buffer` is used where `Const_buffer` could be used for readability).</span></div>
-<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">  179</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a> = boost::asio::const_buffer;</div>
-<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span><span class="comment"></span> </div>
-<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span><span class="comment">   * Short-hand for sequence of immutable buffers; i.e., a sequence of 1 or more scattered areas in memory.</span></div>
-<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span><span class="comment">   * This is a model of the `ConstBufferSequence` model in boost.asio, which means a `const` reference to this</span></div>
-<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span><span class="comment">   * can be passed to boost.asio scatter-gathering send functions such as `Udp_socket::async_send_to()`;</span></div>
-<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span><span class="comment">   * the scattered buffers represented by an instance of this type will be, at high performance, gathered</span></div>
-<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span><span class="comment">   * into a single UDP datagram and sent over the wire if possible.</span></div>
-<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">  188</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a> = std::vector&lt;Const_buffer&gt;;</div>
-<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span><span class="comment"></span> </div>
-<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span><span class="comment">  /// Type used for `m_security_token` member of a couple different packet types.</span></div>
-<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a872044469cfa05a3abf3f9ab1c7cf03b">  191</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a872044469cfa05a3abf3f9ab1c7cf03b">security_token_t</a> = uint64_t;</div>
-<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span><span class="comment"></span> </div>
-<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment">   * Type used to store the retransmission count in DATA and ACK packets.</span></div>
-<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment">   * Why 8 bits?  This handles up 255 retransmissions, which is long after we&#39;d kill the connection</span></div>
-<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment">   * anyway.</span></div>
-<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">  199</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">rexmit_id_t</a> = <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a>;</div>
-<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span><span class="comment"></span> </div>
-<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="comment">  /// Type used to store the size of `m_rcv_wnd` member in a couple of different packet types.</span></div>
-<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">  202</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">rcv_wnd_t</a> = uint32_t;</div>
-<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span> </div>
-<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>  <span class="comment">/* Data: These are actual Common Header payload.</span></div>
-<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span><span class="comment">   * These are common to all packet types, since we are super-`struct` to all actual packet types.</span></div>
-<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span><span class="comment">   * Note the implicit data field typeid(*this) which identifies the actual type of this packet.</span></div>
-<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span><span class="comment">   * (C++ subtlety: typeid(this) will just yield typeid(Low_lvl_packet), which isn&#39;t that useful;</span></div>
-<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span><span class="comment">   * but typeid(*this) will actually get you typeid(Data_packet), typeid(Ack_packet), etc. */</span></div>
-<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span><span class="comment"></span> </div>
-<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span><span class="comment">   * Option indicating whether this connection is using retransmission or not.  This value must not</span></div>
-<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span><span class="comment">   * change over the course of a connection and is provided in each packet for simpler</span></div>
-<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span><span class="comment">   * deserialization (so that the latter can proceed completely without having to check the</span></div>
-<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span><span class="comment">   * connection properties).</span></div>
-<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span><span class="comment">   * For a given connection handshake, the SYN receiver should either disconnect/RST or respond with</span></div>
-<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span><span class="comment">   * SYN_ACK.  If it responds with SYN_ACK, it indicates agreement to abide by this option for the</span></div>
-<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span><span class="comment">   * rest of the connection.</span></div>
-<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#acc2a10d19e8e54c88518ad2e02a08b68">  222</a></span>  <span class="keywordtype">bool</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#acc2a10d19e8e54c88518ad2e02a08b68">m_opt_rexmit_on</a>;</div>
-<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span> </div>
-<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span><span class="preprocessor">#pragma pack(push, 1)</span><span class="comment"></span></div>
-<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span><span class="comment">  /// Packed group affected by `#pragma pack`.</span></div>
-<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span><span class="comment"></span>  <span class="keyword">struct</span></div>
-<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span>  {</div>
-<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>    <span class="comment">// Data.</span></div>
-<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span><span class="comment"></span> </div>
-<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span><span class="comment">    /// Flow-protocol port # of socket in sending Node.</span></div>
-<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ae5bd1ed0883b4827d8a81d70c10fd271">  231</a></span><span class="comment"></span>    <a class="code hl_typedef" href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow_port_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ae5bd1ed0883b4827d8a81d70c10fd271">m_src_port</a>;<span class="comment"></span></div>
-<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span><span class="comment">    /// Flow-protocol port # of socket in receiving Node.</span></div>
-<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a786030d997a7602733a6a4422cb34274">  233</a></span><span class="comment"></span>    <a class="code hl_typedef" href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow_port_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a786030d997a7602733a6a4422cb34274">m_dst_port</a>;</div>
-<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a3e7152648c0098491512da590b47b464">  234</a></span>  } <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a3e7152648c0098491512da590b47b464">m_packed</a>;</div>
-<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span><span class="preprocessor">#pragma pack(pop)</span></div>
-<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span> </div>
-<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span>  <span class="comment">// Type checks.</span></div>
-<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;flow_port_t&gt;::is_integer</div>
-<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span>                  &amp;&amp; (!std::numeric_limits&lt;flow_port_t&gt;::is_signed),</div>
-<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>                <span class="stringliteral">&quot;Ports are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span> </div>
-<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span>  <span class="comment">// Data: These are peripheral (not actual packet payload).</span></div>
-<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span><span class="comment"></span> </div>
-<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="comment">  /// `ostream` manipulator (argument to `ostream &lt;&lt;`) that will output packet&#39;s type (&quot;ACK&quot;, &quot;RST&quot;, etc.).</span></div>
-<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a7f4fd9ce69e293477e96fbad0a2298ed">  245</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;std::ostream&amp; (std::ostream&amp;)&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a7f4fd9ce69e293477e96fbad0a2298ed">m_type_ostream_manip</a>;</div>
-<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span><span class="comment"></span> </div>
-<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span><span class="comment">  /// `ostream` manipulator (argument to `ostream &lt;&lt;`) that will output packet info suitable for DATA log level.</span></div>
-<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ae3e64b049838a690384a899209ffca7b">  248</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;std::ostream&amp; (std::ostream&amp;)&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ae3e64b049838a690384a899209ffca7b">m_verbose_ostream_manip</a>;</div>
-<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span><span class="comment"></span> </div>
-<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span><span class="comment">  /// `ostream` manipulator (argument to `ostream &lt;&lt;`) that will output packet info suitable for TRACE log level.</span></div>
-<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a89bbdc4968a82877de3d7bcba3597c2c">  251</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;std::ostream&amp; (std::ostream&amp;)&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a89bbdc4968a82877de3d7bcba3597c2c">m_concise_ostream_manip</a>;</div>
-<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span> </div>
-<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span><span class="comment"></span> </div>
-<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span><span class="comment">   * Constructs packet with uninitialized (essentially random) values, of the Low_lvl_packet sub-type specified</span></div>
-<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><span class="comment">   * as the template parameter (Ack_packet, Rst_packet, etc.).  Since any constructor is not public, this is</span></div>
-<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span><span class="comment">   * the only way to instantiate a blank Low_lvl_packet sub-object.</span></div>
-<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span><span class="comment">   * Compiler template parameter inference should make the following work, so the template parameter can be omitted.:</span></div>
-<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span><span class="comment">   *   ~~~</span></div>
-<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span><span class="comment">   *   shared_ptr&lt;Ack_packet&gt; = create_uninit_packet(get_logger());</span></div>
-<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span><span class="comment">   *   // ^-- Low_lvl_packet_sub was inferred to be Ack_packet based on the left hand side of the assignment.</span></div>
-<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span><span class="comment">   *   ~~~</span></div>
-<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span><span class="comment">   * @tparam Low_lvl_packet_sub</span></div>
-<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span><span class="comment">   *         Any type deriving from Low_lvl_packet.</span></div>
-<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span><span class="comment">   * @param logger_ptr</span></div>
-<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span><span class="comment">   *        Logger to use subsequently in the new object.</span></div>
-<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span><span class="comment">   * @return Ref-counted pointer to newly created object of the specified type.</span></div>
-<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span><span class="comment">   *         If you need an up-cast pointer, use create_uninit_packet_base().</span></div>
-<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Low_lvl_packet_sub&gt;</div>
-<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span>  <span class="keyword">static</span> boost::shared_ptr&lt;Low_lvl_packet_sub&gt; <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a09f0f187521ec2275885d68b7f6e734a">create_uninit_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
-<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span><span class="comment"></span> </div>
-<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span><span class="comment">   * A simple convenience method that casts the result of create_uninit_packet() from `shared_ptr&lt;T&gt;`, where `T` is a</span></div>
-<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span><span class="comment">   * sub-type of Low_lvl_packet, to `shared_ptr&lt;Low_lvl_packet&gt;` a/k/a Ptr.</span></div>
-<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span><span class="comment">   * @param logger_ptr</span></div>
-<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span><span class="comment">   *        See create_uninit_packet().</span></div>
-<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span><span class="comment">   * @return See create_uninit_packet() (but cast to a type compatible with the polymorphic base type).</span></div>
-<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Low_lvl_packet_sub&gt;</div>
-<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span>  <span class="keyword">static</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Ptr</a> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a64981689c6d162131889bd90ef003279">create_uninit_packet_base</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
-<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span><span class="comment"></span> </div>
-<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span><span class="comment">   * Constructs packet on the heap with values determined by the given raw binary data as presumably</span></div>
-<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span><span class="comment">   * received from the wire and originally serialized by a compatible serializing Node.  The returned</span></div>
-<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span><span class="comment">   * value is a reference-counted pointer with a reference count of 1 (i.e., no other references to</span></div>
-<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span><span class="comment">   * underlying object have been saved anywhere by the time method returns).</span></div>
-<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span><span class="comment">   * It is the opposite of serialize_to_raw_data() but not symmetrically efficient; where the latter</span></div>
-<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span><span class="comment">   * produces a sequence of pointers/lengths of already present areas of memory (no copying), the present method</span></div>
-<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span><span class="comment">   * copies the raw data into a new structure and is thus less efficient.</span></div>
-<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span><span class="comment">   * Suppose `ptr` is returned.  Then `*ptr` is of polymorphic type `Low_lvl_packet*` but actually is</span></div>
-<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span><span class="comment">   * of some specific sub-type (like `Ack_packet*`).  `typeid(*ptr)` can be used to determine the exact type.</span></div>
-<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span><span class="comment">   * In particular one can write things like: `bool is_ack = typeid(*ptr) == typeid(Ack_packet)`.</span></div>
-<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span><span class="comment">   * Of course, in many cases one may call one of a number of virtual methods of Low_lvl_packet to get</span></div>
-<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span><span class="comment">   * type-specific polymorphic behavior.</span></div>
-<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span><span class="comment">   * @see m_type_ostream_manip() for easy way to output human-readable version of `typeid(*ptr).name()`, where</span></div>
-<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span><span class="comment">   *      `ptr` is the value returned.</span></div>
-<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span><span class="comment">   * @param raw_packet</span></div>
-<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span><span class="comment">   *        Pointer to entire packet raw buffer as received over the wire.</span></div>
-<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span><span class="comment">   *        Upon return, the state of `*raw_packet` is not known; and caller retains</span></div>
-<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span><span class="comment">   *        ownership of it (e.g., can read another datagram into it if desired).  As of this writing it will either</span></div>
-<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span><span class="comment">   *        remain unchanged or be emptied (via a move elsewhere) -- but ideally code without relying on either specific</span></div>
-<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span><span class="comment">   *        outcome.</span></div>
-<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span><span class="comment">   * @param prefer_no_move</span></div>
-<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span><span class="comment">   *        If `true`, the method should (if at all reasonable) not alter `raw_packet-&gt;capacity()` (in particular</span></div>
-<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span><span class="comment">   *        it should not use move semantics to send its contents to another data structure); otherwise</span></div>
-<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span><span class="comment">   *        it should be free to do so (i.e., if it considers doing so beneficial for performance reasons).</span></div>
-<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span><span class="comment">   * @param logger_ptr</span></div>
-<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span><span class="comment">   *        Will be used to log within this method as well as be saved as the</span></div>
-<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span><span class="comment">   *        `Logger*` in the new Low_lvl_packet created and returned (if any).</span></div>
-<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span><span class="comment">   * @return A null pointer on failure; otherwise pointer to an object of some sub-type of Low_lvl_packet.</span></div>
-<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span>  <span class="keyword">static</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Ptr</a> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a186d7dae0c4b4402aed22a25d595ed30">create_from_raw_data_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet, <span class="keywordtype">bool</span> prefer_no_move);</div>
-<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span><span class="comment"></span> </div>
-<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span><span class="comment">   * Serializes the current logical packet data from `*this` into the given `Const_buffer_sequence`,</span></div>
-<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span><span class="comment">   * which is a sequence of pointers and lengths of existing scattered areas in memory, presumably</span></div>
-<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span><span class="comment">   * for transmission over the wire to a compatible serializing Node.</span></div>
-<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span><span class="comment">   * It is the opposite of create_from_raw_data_packet() but not symmetrically efficient; where the latter</span></div>
-<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span><span class="comment">   * copies the raw data into a new structure, the present method produces a sequence of pointers/lengths</span></div>
-<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span><span class="comment">   * of already present areas of memory (no copying) and is thus more efficient.</span></div>
-<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span><span class="comment">   * The input `*raw_bufs` is appended to and is *not* cleared by this method.  Thus one may use this</span></div>
-<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span><span class="comment">   * method to produce a larger buffer sequence of which the serialization of `*this` is only a part</span></div>
-<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span><span class="comment">   * (possibly in the middle somewhere).</span></div>
-<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span><span class="comment">   * Behavior is undefined if one modifies `*this` after calling the present method.  It is safer to</span></div>
-<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span><span class="comment">   * run this on a `const Low_lvl_packet` rather than a mutable Low_lvl_packet.</span></div>
-<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span><span class="comment">   * @warning This efficiency comes with an important caveat: the generated additions to `*raw_bufs` will</span></div>
-<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span><span class="comment">   *          remain valid *only* while `*this` exists.  If its destructor runs, the buffers added here</span></div>
-<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span><span class="comment">   *          will become invalid, and accessing them will result in undefined behavior.</span></div>
-<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span><span class="comment">   * @param raw_bufs</span></div>
-<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span><span class="comment">   *        Pointer to the sequence of `Const_buffer`s into which we will append pointers/lengths</span></div>
-<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span><span class="comment">   *        of serialized data.</span></div>
-<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span><span class="comment">   * @return Size in bytes of the data references to which have been appended to `*raw_bufs`;</span></div>
-<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span><span class="comment">   *         Already present data are not included.</span></div>
-<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76">  349</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const</span> = 0;</div>
-<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span><span class="comment"></span> </div>
-<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span><span class="comment">   * Identical to serialize_to_raw_data() but adds log-level-appropriate logging after the operation.</span></div>
-<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span><span class="comment">   * @param raw_bufs</span></div>
-<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span><span class="comment">   *        See serialize_to_raw_data().</span></div>
-<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span><span class="comment">   * @return See serialize_to_raw_data().</span></div>
-<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a5856c405aa18f4f54a35515786befea8">serialize_to_raw_data_and_log</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span><span class="comment"></span> </div>
-<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span><span class="comment">   * Returns a brief (a few characters) string description of the given packet type given as</span></div>
-<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span><span class="comment">   * `type_index(typeid(p))`, where `p` is a reference to an instance of a concrete Low_lvl_packet sub-type.</span></div>
-<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span><span class="comment">   * @param type_id</span></div>
-<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span><span class="comment">   *        See above.  If the `p` points to a value of some other type, behavior is undefined.</span></div>
-<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span><span class="comment">   * @return Reference to a string without newlines or other whitespace: &quot;DATA&quot;, &quot;ACK&quot;, &quot;SYN_ACK_ACK&quot;, etc.</span></div>
-<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span>  <span class="keyword">static</span> <span class="keyword">const</span> std::string&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a37c9c6b04502d73defb803c1efabdf63">type_id_to_str</a>(<span class="keyword">const</span> std::type_index&amp; type_id);</div>
-<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span> </div>
-<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span><span class="keyword">protected</span>:</div>
-<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span><span class="comment"></span> </div>
-<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span><span class="comment">   * Constructs packet with uninitialized (essentially random) values.  This is not public, because</span></div>
-<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span><span class="comment">   * a Low_lvl_packet is meaningless without being of some specific sub-type referring to an actual</span></div>
-<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span><span class="comment">   * packet (e.g., Ack_packet, Rst_packet, etc.).  (The presence of pure virtual methods would probably</span></div>
-<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span><span class="comment">   * accomplish this too, but it&#39;s nice to be explicit.)</span></div>
-<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span><span class="comment">   * @param logger_ptr</span></div>
-<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span><span class="comment">   *        Logger to use subsequently.</span></div>
-<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a4a0585d1abae63af891161f1719bc582">Low_lvl_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
-<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span> </div>
-<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span><span class="comment"></span> </div>
-<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span><span class="comment">   * Helper for serialize_to_raw_data() implementations in sub-types that encodes the header common to all</span></div>
-<div class="line"><a id="l00388" name="l00388"></a><span class="lineno">  388</span><span class="comment">   * packet types, starting with the packet type ID leading that header.</span></div>
-<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span><span class="comment">   * @param raw_bufs</span></div>
-<div class="line"><a id="l00391" name="l00391"></a><span class="lineno">  391</span><span class="comment">   *        See serialize_to_raw_data().  Header fields are encoded and appended to this.</span></div>
-<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span><span class="comment">   * @return See serialize_to_raw_data().  The total # of bytes encoded and appended to `*raw_bufs` by the call.</span></div>
-<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ac7b199700e34d3cc17a7653d7bbb134b">serialize_common_header_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span><span class="comment"></span> </div>
-<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span><span class="comment">   * Writes a multi-line representation of `*this` to an output stream.</span></div>
-<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span><span class="comment">   * Unless the sub-type needs to add no information of its own (as of this writing, the case for Rst_packet),</span></div>
-<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span><span class="comment">   * this implementation (of this virtual method) is only present as a utility for the sub-types.</span></div>
-<div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span><span class="comment">   * The sub-type is recommended to first call this implementation; then add type-specific lines</span></div>
-<div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span><span class="comment">   * afterwards, ending with a newline.  Following this recommendation will result in uniform, decent-looking</span></div>
-<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span><span class="comment">   * overall output.</span></div>
-<div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00405" name="l00405"></a><span class="lineno">  405</span><span class="comment">   * @note This is protected, because it is meant only to be used in the implementation of</span></div>
-<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span><span class="comment">   *       the `ostream` manipulators #m_verbose_ostream_manip and #m_concise_ostream_manip, which</span></div>
-<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span><span class="comment">   *       are public and to be used by users of this type.</span></div>
-<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span><span class="comment">   * @param os</span></div>
-<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span><span class="comment">   *        The output stream to use.  Normally I&#39;d make this a pointer, but this non-constant reference is</span></div>
-<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span><span class="comment">   *        fairly typical in STL and the world in general, for `ostream` in particular.</span></div>
-<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span><span class="comment">   * @param verbose</span></div>
-<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span><span class="comment">   *        If `false`, output suitable for TRACE level logging is produced; otherwise for DATA level logging.</span></div>
-<div class="line"><a id="l00413" name="l00413"></a><span class="lineno">  413</span><span class="comment">   * @return `os`.</span></div>
-<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span>  <span class="keyword">virtual</span> std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a47e9143f0b9dd4ae9d8c5ace666d5539">to_ostream</a>(std::ostream&amp; os, <span class="keywordtype">bool</span> verbose = <span class="keyword">false</span>) <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span><span class="comment"></span> </div>
-<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span><span class="comment">   * Returns `true`, at compile time, if and only if the native memory representation is big-endian, meaning,</span></div>
-<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span><span class="comment">   * for example, the value `uint32_t(1)` is stored as the bytes, in order, 0x00 0x00 0x00 0x01, and not the reverse.</span></div>
-<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span><span class="comment">   * Can be used in a compile-time check such as `static_assert()`.</span></div>
-<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span><span class="comment">   * @return See above.</span></div>
-<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span>  <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a57c06fd2d0b1c3ac058c13f9081067f0">native_is_big_endian</a>();</div>
-<div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span> </div>
-<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span><span class="keyword">private</span>:</div>
-<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span>  <span class="comment">// Types.</span></div>
-<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span> </div>
-<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span><span class="preprocessor">#pragma pack(push, 1)</span></div>
-<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span><span class="comment"></span> </div>
-<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span><span class="comment">   * Helper data store type for storing binary data needed by serialize_to_raw_data(), when certains bits</span></div>
-<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span><span class="comment">   * are not already represented by the public data members present in `struct` Low_lvl_packet.</span></div>
-<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00435" name="l00435"></a><span class="lineno">  435</span><span class="comment">   * The need for this is somewhat subtle and is explained fully inside Low_lvl_packet::serialize_to_raw_data(),</span></div>
-<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span><span class="comment">   * so I won&#39;t go into it here.  Also see each data member&#39;s doc header.</span></div>
-<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html">  438</a></span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html">Aux_raw_data</a> :</div>
-<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span>    <span class="keyword">private</span> boost::noncopyable</div>
-<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span>  {<span class="comment"></span></div>
-<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span><span class="comment">    /**</span></div>
-<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span><span class="comment">     * This is the serialized version of the multi-byte `bool` Low_lvl_packet::m_opt_rexmit_on.</span></div>
-<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span><span class="comment">     * Since the latter is of a more civilized `bool` type, and we need a single byte version, this here</span></div>
-<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span><span class="comment">     * is set to the obvious encoding of the `bool`, when Low_lvl_packet::serialize_to_raw_data() needs to</span></div>
-<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span><span class="comment">     * serialize said `bool`.</span></div>
-<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span><span class="comment">     */</span></div>
-<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a22799fa7c7948cc2f35a411523c12479">  447</a></span>    <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a22799fa7c7948cc2f35a411523c12479">m_opt_rexmit_on_raw</a>;</div>
-<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span><span class="comment"></span> </div>
-<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span><span class="comment">    /**</span></div>
-<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span><span class="comment">     * Unused space reserved for future use, ensuring correct alignment of other fields and</span></div>
-<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span><span class="comment">     * headers.  Currently it must be always set to zero.  Since Low_lvl_packet has no need of a public</span></div>
-<div class="line"><a id="l00452" name="l00452"></a><span class="lineno">  452</span><span class="comment">     * data member like this, we keep it in here, as needed for Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span><span class="comment">     */</span></div>
-<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a244e09a3f5318c25a120e3d29379adc8">  454</a></span>    <span class="keyword">const</span> uint16_t <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a244e09a3f5318c25a120e3d29379adc8">m_reserved2</a>;</div>
-<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span> </div>
-<div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span>    <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span><span class="comment"></span> </div>
-<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span><span class="comment">    /// Constructs a mostly-uninitialized object, except for the `const` member(s), if any.</span></div>
-<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span><span class="comment"></span>    <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a7ae37084e00d375a749c3730f77e6072">Aux_raw_data</a>();</div>
-<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span>  };</div>
-<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span> </div>
-<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span><span class="preprocessor">#pragma pack(pop)</span></div>
-<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span><span class="comment"></span> </div>
-<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span><span class="comment">   * A simple, unmodifiable data store that contains the properties unique to each packet type a/k/a</span></div>
-<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span><span class="comment">   * concrete sub-type of Low_lvl_packet.</span></div>
-<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html">  468</a></span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html">Packet_type_info</a> <span class="comment">// Cannot use boost::noncopyable, as that disables direct member initialization.</span></div>
-<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span>  {<span class="comment"></span></div>
-<div class="line"><a id="l00470" name="l00470"></a><span class="lineno">  470</span><span class="comment">    /// The type ID value, in serialized order, to be used in each serialization of all packets of this type.</span></div>
-<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html#a167901d7c0f96f240dd789027ad99dc5">  471</a></span><span class="comment"></span>    <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html#a167901d7c0f96f240dd789027ad99dc5">m_raw_type_id</a>;</div>
-<div class="line"><a id="l00472" name="l00472"></a><span class="lineno">  472</span><span class="comment"></span> </div>
-<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span><span class="comment">    /// The brief string representation of this packet type, suitable for Low_lvl_packet::type_id_to_str().</span></div>
-<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html#a8dc054626823cb59a1570214349b8450">  474</a></span><span class="comment"></span>    <span class="keyword">const</span> std::string <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html#a8dc054626823cb59a1570214349b8450">m_type_id_str</a>;</div>
-<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span>  };</div>
-<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span> </div>
-<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span><span class="comment"></span> </div>
-<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span><span class="comment">   * Writes a brief representation of `typeid(*this)` -- i.e., the packet type (ACK, RST, etc.) --</span></div>
-<div class="line"><a id="l00481" name="l00481"></a><span class="lineno">  481</span><span class="comment">   * to an output stream.  See also type_id_to_str().</span></div>
-<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span><span class="comment">   * @note This is private, because it is meant only to be used in the implementation of</span></div>
-<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span><span class="comment">   *       the `ostream` manipulator #m_type_ostream_manip, which is public and to be used by users of this type.</span></div>
-<div class="line"><a id="l00485" name="l00485"></a><span class="lineno">  485</span><span class="comment">   * @param os</span></div>
-<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span><span class="comment">   *        The output stream to use.  Normally I&#39;d make this a pointer, but this non-constant reference is</span></div>
-<div class="line"><a id="l00487" name="l00487"></a><span class="lineno">  487</span><span class="comment">   *        fairly typical in STL and the world in general, for `ostream` in particular.</span></div>
-<div class="line"><a id="l00488" name="l00488"></a><span class="lineno">  488</span><span class="comment">   * @return `os`.</span></div>
-<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span>  std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a720372b60ae7b7ee23c9f2d6775c7de1">type_to_ostream</a>(std::ostream&amp; os) <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00491" name="l00491"></a><span class="lineno">  491</span><span class="comment"></span> </div>
-<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span><span class="comment">   * Helper that looks up the Packet_type_info::m_raw_type_id value for the given `typeid(p)`, where `p` refers</span></div>
-<div class="line"><a id="l00494" name="l00494"></a><span class="lineno">  494</span><span class="comment">   * to an instance of a concrete sub-type of Low_lvl_packet.  Note that is returns a reference, and indeed the referred</span></div>
-<div class="line"><a id="l00495" name="l00495"></a><span class="lineno">  495</span><span class="comment">   * to memory will remain valid and unmodified throughout the program&#39;s runtime.  Therefore, it can be used</span></div>
-<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span><span class="comment">   * for serialization without copying.</span></div>
-<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span><span class="comment">   * ### Implementation note ###</span></div>
-<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span><span class="comment">   * It would be nice to make this `constexpr`, as then it can be used in `switch()` statement</span></div>
-<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span><span class="comment">   * conditionals.  Unfortunately, at least as of C++17, this is not possible with our current implementation:</span></div>
-<div class="line"><a id="l00501" name="l00501"></a><span class="lineno">  501</span><span class="comment">   * #S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO is an `unordered_map` (as of this writing), and that is not a &quot;literal&quot;</span></div>
-<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span><span class="comment">   * type (in other words, lookups in it are not done at compile time, even when for a human it would seem clearly</span></div>
-<div class="line"><a id="l00503" name="l00503"></a><span class="lineno">  503</span><span class="comment">   * possible... iterators and such are involved, and that goes beyond what `constexpr` evaluation can do).</span></div>
-<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00505" name="l00505"></a><span class="lineno">  505</span><span class="comment">   * @param type_id</span></div>
-<div class="line"><a id="l00506" name="l00506"></a><span class="lineno">  506</span><span class="comment">   *        See type_id_to_str().</span></div>
-<div class="line"><a id="l00507" name="l00507"></a><span class="lineno">  507</span><span class="comment">   * @return Reference to a constant area of memory.</span></div>
-<div class="line"><a id="l00508" name="l00508"></a><span class="lineno">  508</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a>&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6b3de1eb7a337002440ecd1ab0ad058f">type_id_native_to_raw</a>(<span class="keyword">const</span> std::type_info&amp; type_id);</div>
-<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span><span class="comment"></span> </div>
-<div class="line"><a id="l00511" name="l00511"></a><span class="lineno">  511</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00512" name="l00512"></a><span class="lineno">  512</span><span class="comment">   * `virtual` helper for create_from_raw_data_packet() that fills out the fields of `*this` that are *not*</span></div>
-<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span><span class="comment">   * in Low_lvl_packet but rather in the sub-type.</span></div>
-<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span><span class="comment">   * `*raw_buf` must represent the area of create_from_raw_data_packet()&#39;s `*raw_buf` argument immediately</span></div>
-<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span><span class="comment">   * following the Common Header, which is the area deserialized into Low_lvl_packet proper.  Hence</span></div>
-<div class="line"><a id="l00517" name="l00517"></a><span class="lineno">  517</span><span class="comment">   * `*raw_buf` must point to and contain the length of the rest of that input buffer.  The present method</span></div>
-<div class="line"><a id="l00518" name="l00518"></a><span class="lineno">  518</span><span class="comment">   * must then deserialize it into the sub-object&#39;s own fields.</span></div>
-<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span><span class="comment">   * @param raw_buf</span></div>
-<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span><span class="comment">   *        Pointer to immutable buffer just past the input raw packet data&#39;s Common Header area.</span></div>
-<div class="line"><a id="l00522" name="l00522"></a><span class="lineno">  522</span><span class="comment">   *        Note that while the underlying area is immutable (hence the type #Const_buffer!),</span></div>
-<div class="line"><a id="l00523" name="l00523"></a><span class="lineno">  523</span><span class="comment">   *        `*raw_buf` itself may be modified (i.e., the area to which it will refer on exit is undefined).</span></div>
-<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span><span class="comment">   * @param prefer_no_move</span></div>
-<div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span><span class="comment">   *        See create_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span><span class="comment">   * @param raw_packet</span></div>
-<div class="line"><a id="l00527" name="l00527"></a><span class="lineno">  527</span><span class="comment">   *        See create_from_raw_data_packet().  `raw_buf` must start somewhere within it and be</span></div>
-<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span><span class="comment">   *        sized to go exactly to its end.</span></div>
-<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span><span class="comment">   * @return `false` if create_from_raw_data_packet() should return `Ptr()` (error); `true` if</span></div>
-<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span><span class="comment">   *         deserialization successful.</span></div>
-<div class="line"><a id="l00531" name="l00531"></a><span class="lineno">  531</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a5c6a0e32bfe5616843746319533ca2c1">  532</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a5c6a0e32bfe5616843746319533ca2c1">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
-<div class="line"><a id="l00533" name="l00533"></a><span class="lineno">  533</span>                                                                   <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) = 0;</div>
-<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span> </div>
-<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span>  <span class="comment">// Constants.</span></div>
-<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span><span class="comment"></span> </div>
-<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span><span class="comment">   * Mapping from native `typeid()`, a/k/a packet type (for all possible packet types), to the set of properties of</span></div>
-<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span><span class="comment">   * that packet type.  The keys are every possible value of `type_index(typeid(p))`, where `p` is a reference</span></div>
-<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span><span class="comment">   * to an instance of any concrete Low_lvl_packet sub-type.</span></div>
-<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00542" name="l00542"></a><span class="lineno">  542</span><span class="comment">   * ### Implementation note ###</span></div>
-<div class="line"><a id="l00543" name="l00543"></a><span class="lineno">  543</span><span class="comment">   * An alternative way to implement this mechanism (as of this writing, raw type IDs and brief</span></div>
-<div class="line"><a id="l00544" name="l00544"></a><span class="lineno">  544</span><span class="comment">   * string descriptions per packet type) is to use `virtual` liberally, combined with a `switch` if needed.  (Note,</span></div>
-<div class="line"><a id="l00545" name="l00545"></a><span class="lineno">  545</span><span class="comment">   * also, that a way to index -- such as in an `unordered` container -- by</span></div>
-<div class="line"><a id="l00546" name="l00546"></a><span class="lineno">  546</span><span class="comment">   * packet type is necessary elsewhere.  We use `type_index(typeid()))` now, but a [worse] alternative is to have</span></div>
-<div class="line"><a id="l00547" name="l00547"></a><span class="lineno">  547</span><span class="comment">   * `virtual` type IDs returned for each Low_lvl_packet sub-type.)  I could explain</span></div>
-<div class="line"><a id="l00548" name="l00548"></a><span class="lineno">  548</span><span class="comment">   * at length all the reasons why the chosen way is superior, but let me just give you the conclusion: I originally</span></div>
-<div class="line"><a id="l00549" name="l00549"></a><span class="lineno">  549</span><span class="comment">   * tried it the `virtual/switch` way.  Instead of the raw type IDs and</span></div>
-<div class="line"><a id="l00550" name="l00550"></a><span class="lineno">  550</span><span class="comment">   * string descriptions being conveniently encapsulated in the present map (where there&#39;s little to no chance of</span></div>
-<div class="line"><a id="l00551" name="l00551"></a><span class="lineno">  551</span><span class="comment">   * conflicting values), they were distributed across `virtual` implementations.  This was less maintainable; nor did</span></div>
-<div class="line"><a id="l00552" name="l00552"></a><span class="lineno">  552</span><span class="comment">   * it improve OO style, since the raw type ID values (at least) were</span></div>
-<div class="line"><a id="l00553" name="l00553"></a><span class="lineno">  553</span><span class="comment">   * still inter-dependent (were not allowed to conflict) in any case.</span></div>
-<div class="line"><a id="l00554" name="l00554"></a><span class="lineno">  554</span><span class="comment">   * The present solution does not pretend the actual contents of these values are of no interest to Low_lvl_packet</span></div>
-<div class="line"><a id="l00555" name="l00555"></a><span class="lineno">  555</span><span class="comment">   * itself (as opposed to the sub-types), and in not having to pretend this, all related code is quite a bit more</span></div>
-<div class="line"><a id="l00556" name="l00556"></a><span class="lineno">  556</span><span class="comment">   * compact and a bit more maintainable as well.</span></div>
-<div class="line"><a id="l00557" name="l00557"></a><span class="lineno">  557</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00558" name="l00558"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a521afb86aaf334b871c9226ce503c508">  558</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> boost::unordered_map&lt;std::type_index, Packet_type_info&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a521afb86aaf334b871c9226ce503c508">S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</a>;</div>
-<div class="line"><a id="l00559" name="l00559"></a><span class="lineno">  559</span> </div>
-<div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l00561" name="l00561"></a><span class="lineno">  561</span><span class="comment"></span> </div>
-<div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00563" name="l00563"></a><span class="lineno">  563</span><span class="comment">   * Auxilliary data area necessary for serialize_to_raw_data() to work.  This is explained in doc header</span></div>
-<div class="line"><a id="l00564" name="l00564"></a><span class="lineno">  564</span><span class="comment">   * for Aux_raw_data.</span></div>
-<div class="line"><a id="l00565" name="l00565"></a><span class="lineno">  565</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00566" name="l00566"></a><span class="lineno">  566</span><span class="comment">   * It is declared `mutable`, because the conceptual state contained within a Low_lvl_packet is expressed</span></div>
-<div class="line"><a id="l00567" name="l00567"></a><span class="lineno">  567</span><span class="comment">   * via its public non-`const` data members.  #m_aux_raw_data is merely a helper data store for</span></div>
-<div class="line"><a id="l00568" name="l00568"></a><span class="lineno">  568</span><span class="comment">   * the `const` method serialize_to_raw_data().  Since that method is `const`, this should be `mutable`,</span></div>
-<div class="line"><a id="l00569" name="l00569"></a><span class="lineno">  569</span><span class="comment">   * like a performance cache of sorts, only not exactly.</span></div>
-<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00571" name="l00571"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a1295f44e5a4ebdece11ed6d0eea0fbaa">  571</a></span>  <span class="keyword">mutable</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html">Aux_raw_data</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a1295f44e5a4ebdece11ed6d0eea0fbaa">m_aux_raw_data</a>;</div>
-<div class="line"><a id="l00572" name="l00572"></a><span class="lineno">  572</span>}; <span class="comment">// struct Low_lvl_packet</span></div>
-<div class="line"><a id="l00573" name="l00573"></a><span class="lineno">  573</span><span class="comment"></span> </div>
-<div class="line"><a id="l00574" name="l00574"></a><span class="lineno">  574</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00575" name="l00575"></a><span class="lineno">  575</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level SYN packet.</span></div>
-<div class="line"><a id="l00576" name="l00576"></a><span class="lineno">  576</span><span class="comment"> * See Low_lvl_packet doc header for information common to all low-level packets including this one.</span></div>
-<div class="line"><a id="l00577" name="l00577"></a><span class="lineno">  577</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00578" name="l00578"></a><span class="lineno">  578</span><span class="comment"> * A SYN packet is sent by the actively connecting peer to a passively listening server socket.</span></div>
-<div class="line"><a id="l00579" name="l00579"></a><span class="lineno">  579</span><span class="comment"> * Thus a SYN arises from the Node that performs `Node::connect...()`.  In response, a Syn_ack_packet</span></div>
-<div class="line"><a id="l00580" name="l00580"></a><span class="lineno">  580</span><span class="comment"> * is expected.</span></div>
-<div class="line"><a id="l00581" name="l00581"></a><span class="lineno">  581</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00582" name="l00582"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__packet.html">  582</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Syn__packet.html">Syn_packet</a> : <span class="keyword">public</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a></div>
-<div class="line"><a id="l00583" name="l00583"></a><span class="lineno">  583</span>{</div>
-<div class="line"><a id="l00584" name="l00584"></a><span class="lineno">  584</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l00585" name="l00585"></a><span class="lineno">  585</span><span class="comment"></span> </div>
-<div class="line"><a id="l00586" name="l00586"></a><span class="lineno">  586</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00587" name="l00587"></a><span class="lineno">  587</span><span class="comment">   * The Initial Sequence Number (ISN) of the sequence number line that the sender of this SYN will be</span></div>
-<div class="line"><a id="l00588" name="l00588"></a><span class="lineno">  588</span><span class="comment">   * using in `Data_packet`s over this connection, if it succeeds.  All bytes actually sent by the</span></div>
-<div class="line"><a id="l00589" name="l00589"></a><span class="lineno">  589</span><span class="comment">   * SYN sender will start with this ISN + 1 and increment by 1 for each byte in the stream further.</span></div>
-<div class="line"><a id="l00590" name="l00590"></a><span class="lineno">  590</span><span class="comment">   * A retransmission of a given datum starting with sequence number S will still start with sequence number</span></div>
-<div class="line"><a id="l00591" name="l00591"></a><span class="lineno">  591</span><span class="comment">   * S.</span></div>
-<div class="line"><a id="l00592" name="l00592"></a><span class="lineno">  592</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00593" name="l00593"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__packet.html#af235e53d05d025b0808b2ee677c0cba4">  593</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__packet.html#af235e53d05d025b0808b2ee677c0cba4">m_init_seq_num</a>;</div>
-<div class="line"><a id="l00594" name="l00594"></a><span class="lineno">  594</span><span class="comment"></span> </div>
-<div class="line"><a id="l00595" name="l00595"></a><span class="lineno">  595</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00596" name="l00596"></a><span class="lineno">  596</span><span class="comment">   * Arbitrary serialized user-supplied metadata to send in SYN, where it can be deserialized by</span></div>
-<div class="line"><a id="l00597" name="l00597"></a><span class="lineno">  597</span><span class="comment">   * the user on the other side.</span></div>
-<div class="line"><a id="l00598" name="l00598"></a><span class="lineno">  598</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00599" name="l00599"></a><span class="lineno">  599</span><span class="comment">   * @todo Possibly eliminate this, since NetFlow is reliable; the metadata can just be sent explicitly by the</span></div>
-<div class="line"><a id="l00600" name="l00600"></a><span class="lineno">  600</span><span class="comment">   * user once the connection is established.  However, for now reliability is optional.</span></div>
-<div class="line"><a id="l00601" name="l00601"></a><span class="lineno">  601</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00602" name="l00602"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__packet.html#abde26e74af2154fda517d6125353f305">  602</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__packet.html#abde26e74af2154fda517d6125353f305">m_serialized_metadata</a>;</div>
-<div class="line"><a id="l00603" name="l00603"></a><span class="lineno">  603</span> </div>
-<div class="line"><a id="l00604" name="l00604"></a><span class="lineno">  604</span>  <span class="comment">// Type checks.</span></div>
-<div class="line"><a id="l00605" name="l00605"></a><span class="lineno">  605</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_integer</div>
-<div class="line"><a id="l00606" name="l00606"></a><span class="lineno">  606</span>                  &amp;&amp; (!std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_signed),</div>
-<div class="line"><a id="l00607" name="l00607"></a><span class="lineno">  607</span>                <span class="stringliteral">&quot;Raw sequence numbers are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l00608" name="l00608"></a><span class="lineno">  608</span><span class="comment"></span> </div>
-<div class="line"><a id="l00609" name="l00609"></a><span class="lineno">  609</span><span class="comment">  /// In serialized packet, the type ID byte identifying this as a SYN packet.  Must not equal any other packet type&#39;s.</span></div>
-<div class="line"><a id="l00610" name="l00610"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__packet.html#a1f0628c2e2d6d58b881b379a95fde441">  610</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__packet.html#a1f0628c2e2d6d58b881b379a95fde441">S_RAW_TYPE_ID</a>;</div>
-<div class="line"><a id="l00611" name="l00611"></a><span class="lineno">  611</span> </div>
-<div class="line"><a id="l00612" name="l00612"></a><span class="lineno">  612</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00613" name="l00613"></a><span class="lineno">  613</span><span class="comment"></span> </div>
-<div class="line"><a id="l00614" name="l00614"></a><span class="lineno">  614</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00615" name="l00615"></a><span class="lineno">  615</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l00616" name="l00616"></a><span class="lineno">  616</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00617" name="l00617"></a><span class="lineno">  617</span><span class="comment">   * @param raw_bufs</span></div>
-<div class="line"><a id="l00618" name="l00618"></a><span class="lineno">  618</span><span class="comment">   *        See Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l00619" name="l00619"></a><span class="lineno">  619</span><span class="comment">   * @return See Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l00620" name="l00620"></a><span class="lineno">  620</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00621" name="l00621"></a><span class="lineno">  621</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__packet.html#af72461ac0c304cd5ea2bb3fca2b3a444">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const override</span>;</div>
-<div class="line"><a id="l00622" name="l00622"></a><span class="lineno">  622</span> </div>
-<div class="line"><a id="l00623" name="l00623"></a><span class="lineno">  623</span><span class="keyword">private</span>:</div>
-<div class="line"><a id="l00624" name="l00624"></a><span class="lineno">  624</span>  <span class="comment">// Friends.</span></div>
-<div class="line"><a id="l00625" name="l00625"></a><span class="lineno">  625</span><span class="comment"></span> </div>
-<div class="line"><a id="l00626" name="l00626"></a><span class="lineno">  626</span><span class="comment">  /// Friend of Syn_packet: For access to private constructor `Syn_packet(Logger*)`.</span></div>
-<div class="line"><a id="l00627" name="l00627"></a><span class="lineno">  627</span><span class="comment"></span>  <span class="comment">// @todo Doxygen complains unless I make the above a Doxygen comment.  In other places it doesn&#39;t complain.  Fix...?</span></div>
-<div class="line"><a id="l00628" name="l00628"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__packet.html#aca7129058be684c5584b70a90d1813ba">  628</a></span>  <span class="keyword">friend</span> boost::shared_ptr&lt;Syn_packet&gt; Low_lvl_packet::create_uninit_packet&lt;Syn_packet&gt;(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>*);</div>
-<div class="line"><a id="l00629" name="l00629"></a><span class="lineno">  629</span> </div>
-<div class="line"><a id="l00630" name="l00630"></a><span class="lineno">  630</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l00631" name="l00631"></a><span class="lineno">  631</span><span class="comment"></span> </div>
-<div class="line"><a id="l00632" name="l00632"></a><span class="lineno">  632</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00633" name="l00633"></a><span class="lineno">  633</span><span class="comment">   * The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</span></div>
-<div class="line"><a id="l00634" name="l00634"></a><span class="lineno">  634</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00635" name="l00635"></a><span class="lineno">  635</span><span class="comment">   * @param logger_ptr</span></div>
-<div class="line"><a id="l00636" name="l00636"></a><span class="lineno">  636</span><span class="comment">   *        Logger to use subsequently.</span></div>
-<div class="line"><a id="l00637" name="l00637"></a><span class="lineno">  637</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00638" name="l00638"></a><span class="lineno">  638</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__packet.html#a943eb247f6c6a0de134e2d255feaf146">Syn_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
-<div class="line"><a id="l00639" name="l00639"></a><span class="lineno">  639</span> </div>
-<div class="line"><a id="l00640" name="l00640"></a><span class="lineno">  640</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00641" name="l00641"></a><span class="lineno">  641</span><span class="comment"></span> </div>
-<div class="line"><a id="l00642" name="l00642"></a><span class="lineno">  642</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00643" name="l00643"></a><span class="lineno">  643</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l00644" name="l00644"></a><span class="lineno">  644</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00645" name="l00645"></a><span class="lineno">  645</span><span class="comment">   * @param os</span></div>
-<div class="line"><a id="l00646" name="l00646"></a><span class="lineno">  646</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
-<div class="line"><a id="l00647" name="l00647"></a><span class="lineno">  647</span><span class="comment">   * @param verbose</span></div>
-<div class="line"><a id="l00648" name="l00648"></a><span class="lineno">  648</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
-<div class="line"><a id="l00649" name="l00649"></a><span class="lineno">  649</span><span class="comment">   * @return `os`.</span></div>
-<div class="line"><a id="l00650" name="l00650"></a><span class="lineno">  650</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00651" name="l00651"></a><span class="lineno">  651</span>  std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__packet.html#a11ded0bc8596fb4adc815c5322e7ad26">to_ostream</a>(std::ostream&amp; os, <span class="keywordtype">bool</span> verbose) <span class="keyword">const override</span>;</div>
-<div class="line"><a id="l00652" name="l00652"></a><span class="lineno">  652</span><span class="comment"></span> </div>
-<div class="line"><a id="l00653" name="l00653"></a><span class="lineno">  653</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00654" name="l00654"></a><span class="lineno">  654</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l00655" name="l00655"></a><span class="lineno">  655</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00656" name="l00656"></a><span class="lineno">  656</span><span class="comment">   * @param raw_buf</span></div>
-<div class="line"><a id="l00657" name="l00657"></a><span class="lineno">  657</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00658" name="l00658"></a><span class="lineno">  658</span><span class="comment">   * @param prefer_no_move</span></div>
-<div class="line"><a id="l00659" name="l00659"></a><span class="lineno">  659</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00660" name="l00660"></a><span class="lineno">  660</span><span class="comment">   * @param raw_packet</span></div>
-<div class="line"><a id="l00661" name="l00661"></a><span class="lineno">  661</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00662" name="l00662"></a><span class="lineno">  662</span><span class="comment">   * @return See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00663" name="l00663"></a><span class="lineno">  663</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00664" name="l00664"></a><span class="lineno">  664</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__packet.html#aee4a61d5e344959abc89ee83ae105c8a">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
-<div class="line"><a id="l00665" name="l00665"></a><span class="lineno">  665</span>                                                           <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) <span class="keyword">override</span>;</div>
-<div class="line"><a id="l00666" name="l00666"></a><span class="lineno">  666</span>}; <span class="comment">// struct Syn_packet</span></div>
-<div class="line"><a id="l00667" name="l00667"></a><span class="lineno">  667</span><span class="comment"></span> </div>
-<div class="line"><a id="l00668" name="l00668"></a><span class="lineno">  668</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00669" name="l00669"></a><span class="lineno">  669</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level SYN_ACK packet.</span></div>
-<div class="line"><a id="l00670" name="l00670"></a><span class="lineno">  670</span><span class="comment"> * See Low_lvl_packet doc header for information common to all low-level packets including this one.</span></div>
-<div class="line"><a id="l00671" name="l00671"></a><span class="lineno">  671</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00672" name="l00672"></a><span class="lineno">  672</span><span class="comment"> * A SYN_ACK packet is sent by the passively listening server socket in response to a valid received SYN.</span></div>
-<div class="line"><a id="l00673" name="l00673"></a><span class="lineno">  673</span><span class="comment"> * Thus a SYN_ACK arises from the Node that performs Node::listen() and receives SYN.  In response, a</span></div>
-<div class="line"><a id="l00674" name="l00674"></a><span class="lineno">  674</span><span class="comment"> * Syn_ack_ack_packet is expected to complete the 3-way handshake and establish a Peer_socket to Peer_socket</span></div>
-<div class="line"><a id="l00675" name="l00675"></a><span class="lineno">  675</span><span class="comment"> * connection.</span></div>
-<div class="line"><a id="l00676" name="l00676"></a><span class="lineno">  676</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00677" name="l00677"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html">  677</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Syn__ack__packet.html">Syn_ack_packet</a> : <span class="keyword">public</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a></div>
-<div class="line"><a id="l00678" name="l00678"></a><span class="lineno">  678</span>{</div>
-<div class="line"><a id="l00679" name="l00679"></a><span class="lineno">  679</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l00680" name="l00680"></a><span class="lineno">  680</span><span class="comment"></span> </div>
-<div class="line"><a id="l00681" name="l00681"></a><span class="lineno">  681</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00682" name="l00682"></a><span class="lineno">  682</span><span class="comment">   * Same meaning as Syn_packet::m_init_seq_num but applied to the essentially independent opposite</span></div>
-<div class="line"><a id="l00683" name="l00683"></a><span class="lineno">  683</span><span class="comment">   * traffic direction of the full-duplex connection being established.</span></div>
-<div class="line"><a id="l00684" name="l00684"></a><span class="lineno">  684</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00685" name="l00685"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a0535131057e39d7d9092156fa674b9d4">  685</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a0535131057e39d7d9092156fa674b9d4">m_init_seq_num</a>;</div>
-<div class="line"><a id="l00686" name="l00686"></a><span class="lineno">  686</span> </div>
-<div class="line"><a id="l00687" name="l00687"></a><span class="lineno">  687</span><span class="preprocessor">#pragma pack(push, 1)</span><span class="comment"></span></div>
-<div class="line"><a id="l00688" name="l00688"></a><span class="lineno">  688</span><span class="comment">  /// Packed group affected by `#pragma pack`.</span></div>
-<div class="line"><a id="l00689" name="l00689"></a><span class="lineno">  689</span><span class="comment"></span>  <span class="keyword">struct</span></div>
-<div class="line"><a id="l00690" name="l00690"></a><span class="lineno">  690</span>  {<span class="comment"></span></div>
-<div class="line"><a id="l00691" name="l00691"></a><span class="lineno">  691</span><span class="comment">    /**</span></div>
-<div class="line"><a id="l00692" name="l00692"></a><span class="lineno">  692</span><span class="comment">     * Random security token used during SYN_ACK-SYN_ACK_ACK.  For a given connection handshake, the SYN_ACK_ACK</span></div>
-<div class="line"><a id="l00693" name="l00693"></a><span class="lineno">  693</span><span class="comment">     * receiver ensures that `Syn_ack_ack_packet` `m_security_token` it receives is equal to the original</span></div>
-<div class="line"><a id="l00694" name="l00694"></a><span class="lineno">  694</span><span class="comment">     * one it had sent (this #m_security_token here).</span></div>
-<div class="line"><a id="l00695" name="l00695"></a><span class="lineno">  695</span><span class="comment">     */</span></div>
-<div class="line"><a id="l00696" name="l00696"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a46bb776a13c77d7109469c0c29565a30">  696</a></span>    <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a872044469cfa05a3abf3f9ab1c7cf03b">security_token_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a46bb776a13c77d7109469c0c29565a30">m_security_token</a>;</div>
-<div class="line"><a id="l00697" name="l00697"></a><span class="lineno">  697</span><span class="comment"></span> </div>
-<div class="line"><a id="l00698" name="l00698"></a><span class="lineno">  698</span><span class="comment">    /**</span></div>
-<div class="line"><a id="l00699" name="l00699"></a><span class="lineno">  699</span><span class="comment">     * Number of DATA payload bytes the sender of this packet would accept into its Receive buffer,</span></div>
-<div class="line"><a id="l00700" name="l00700"></a><span class="lineno">  700</span><span class="comment">     * without dropping, at the moment this packet was generated to send.  This information is</span></div>
-<div class="line"><a id="l00701" name="l00701"></a><span class="lineno">  701</span><span class="comment">     * piggybacked into ACK (and SYN_ACK/SYN_ACK_ACK) packets.</span></div>
-<div class="line"><a id="l00702" name="l00702"></a><span class="lineno">  702</span><span class="comment">     *</span></div>
-<div class="line"><a id="l00703" name="l00703"></a><span class="lineno">  703</span><span class="comment">     * @todo We could be similar to TCP by opportunistically sending rcv_wnd in other packet types,</span></div>
-<div class="line"><a id="l00704" name="l00704"></a><span class="lineno">  704</span><span class="comment">     * namely Data_packet.  However this would only help in connections with heavy 2-way traffic.</span></div>
-<div class="line"><a id="l00705" name="l00705"></a><span class="lineno">  705</span><span class="comment">     * Personally I would then prefer to create a new packet type instead, Rcv_wnd_packet, and also</span></div>
-<div class="line"><a id="l00706" name="l00706"></a><span class="lineno">  706</span><span class="comment">     * implement some generalized &quot;packet combo&quot; scheme which would allow to piggy-back arbitrary</span></div>
-<div class="line"><a id="l00707" name="l00707"></a><span class="lineno">  707</span><span class="comment">     * packet types together into a single packet; and then we&#39;d dissociate</span></div>
-<div class="line"><a id="l00708" name="l00708"></a><span class="lineno">  708</span><span class="comment">     * ACK/SYN_ACK/SYN_ACK_ACK from rcv_wnd.</span></div>
-<div class="line"><a id="l00709" name="l00709"></a><span class="lineno">  709</span><span class="comment">     */</span></div>
-<div class="line"><a id="l00710" name="l00710"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a1ed3bdee2d19c2adaaf00fda9b5a7ca8">  710</a></span>    <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">rcv_wnd_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a1ed3bdee2d19c2adaaf00fda9b5a7ca8">m_rcv_wnd</a>;</div>
-<div class="line"><a id="l00711" name="l00711"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#aaf2fa9221da49c413441aa8fec93ce91">  711</a></span>  } <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#aaf2fa9221da49c413441aa8fec93ce91">m_packed</a>;</div>
-<div class="line"><a id="l00712" name="l00712"></a><span class="lineno">  712</span><span class="preprocessor">#pragma pack(pop)</span></div>
-<div class="line"><a id="l00713" name="l00713"></a><span class="lineno">  713</span> </div>
-<div class="line"><a id="l00714" name="l00714"></a><span class="lineno">  714</span>  <span class="comment">// Type checks.</span></div>
-<div class="line"><a id="l00715" name="l00715"></a><span class="lineno">  715</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_integer</div>
-<div class="line"><a id="l00716" name="l00716"></a><span class="lineno">  716</span>                  &amp;&amp; (!std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_signed),</div>
-<div class="line"><a id="l00717" name="l00717"></a><span class="lineno">  717</span>                <span class="stringliteral">&quot;Raw sequence numbers are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l00718" name="l00718"></a><span class="lineno">  718</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;security_token_t&gt;::is_integer</div>
-<div class="line"><a id="l00719" name="l00719"></a><span class="lineno">  719</span>                  &amp;&amp; (!std::numeric_limits&lt;security_token_t&gt;::is_signed),</div>
-<div class="line"><a id="l00720" name="l00720"></a><span class="lineno">  720</span>                <span class="stringliteral">&quot;Security tokens are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l00721" name="l00721"></a><span class="lineno">  721</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;rcv_wnd_t&gt;::is_integer</div>
-<div class="line"><a id="l00722" name="l00722"></a><span class="lineno">  722</span>                  &amp;&amp; (!std::numeric_limits&lt;rcv_wnd_t&gt;::is_signed),</div>
-<div class="line"><a id="l00723" name="l00723"></a><span class="lineno">  723</span>                <span class="stringliteral">&quot;rcv_wnd values are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l00724" name="l00724"></a><span class="lineno">  724</span><span class="comment"></span> </div>
-<div class="line"><a id="l00725" name="l00725"></a><span class="lineno">  725</span><span class="comment">  /// In serialized packet, the type ID byte identifying this as a SYN_ACK.  Must not equal any other packet type&#39;s.</span></div>
-<div class="line"><a id="l00726" name="l00726"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#ab6db0fded81c7002f0bd00e9388b09bd">  726</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#ab6db0fded81c7002f0bd00e9388b09bd">S_RAW_TYPE_ID</a>;</div>
-<div class="line"><a id="l00727" name="l00727"></a><span class="lineno">  727</span> </div>
-<div class="line"><a id="l00728" name="l00728"></a><span class="lineno">  728</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00729" name="l00729"></a><span class="lineno">  729</span><span class="comment"></span> </div>
-<div class="line"><a id="l00730" name="l00730"></a><span class="lineno">  730</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00731" name="l00731"></a><span class="lineno">  731</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l00732" name="l00732"></a><span class="lineno">  732</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00733" name="l00733"></a><span class="lineno">  733</span><span class="comment">   * @param raw_bufs</span></div>
-<div class="line"><a id="l00734" name="l00734"></a><span class="lineno">  734</span><span class="comment">   *        See Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l00735" name="l00735"></a><span class="lineno">  735</span><span class="comment">   * @return See Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l00736" name="l00736"></a><span class="lineno">  736</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00737" name="l00737"></a><span class="lineno">  737</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a98fae8deebcd22c8397f2585de18ce9d">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const override</span>;</div>
-<div class="line"><a id="l00738" name="l00738"></a><span class="lineno">  738</span> </div>
-<div class="line"><a id="l00739" name="l00739"></a><span class="lineno">  739</span><span class="keyword">private</span>:</div>
-<div class="line"><a id="l00740" name="l00740"></a><span class="lineno">  740</span>  <span class="comment">// Friends.</span></div>
-<div class="line"><a id="l00741" name="l00741"></a><span class="lineno">  741</span><span class="comment"></span> </div>
-<div class="line"><a id="l00742" name="l00742"></a><span class="lineno">  742</span><span class="comment">  /// Friend of Syn_ack_packet: For access to private constructor `Syn_ack_packet(Logger*)`.</span></div>
-<div class="line"><a id="l00743" name="l00743"></a><span class="lineno">  743</span><span class="comment"></span>  <span class="comment">// @todo Doxygen complains unless I make the above a Doxygen comment.  In other places it doesn&#39;t complain.  Fix...?</span></div>
-<div class="line"><a id="l00744" name="l00744"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#ad0df496e6804311013b1eb0ffe287b3d">  744</a></span>  <span class="keyword">friend</span> boost::shared_ptr&lt;Syn_ack_packet&gt; Low_lvl_packet::create_uninit_packet&lt;Syn_ack_packet&gt;(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>*);</div>
-<div class="line"><a id="l00745" name="l00745"></a><span class="lineno">  745</span> </div>
-<div class="line"><a id="l00746" name="l00746"></a><span class="lineno">  746</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l00747" name="l00747"></a><span class="lineno">  747</span><span class="comment"></span> </div>
-<div class="line"><a id="l00748" name="l00748"></a><span class="lineno">  748</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00749" name="l00749"></a><span class="lineno">  749</span><span class="comment">   * The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</span></div>
-<div class="line"><a id="l00750" name="l00750"></a><span class="lineno">  750</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00751" name="l00751"></a><span class="lineno">  751</span><span class="comment">   * @param logger_ptr</span></div>
-<div class="line"><a id="l00752" name="l00752"></a><span class="lineno">  752</span><span class="comment">   *        Logger to use subsequently.</span></div>
-<div class="line"><a id="l00753" name="l00753"></a><span class="lineno">  753</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00754" name="l00754"></a><span class="lineno">  754</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a439f09a3ae4d1a5125781e220e29c39e">Syn_ack_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
-<div class="line"><a id="l00755" name="l00755"></a><span class="lineno">  755</span> </div>
-<div class="line"><a id="l00756" name="l00756"></a><span class="lineno">  756</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00757" name="l00757"></a><span class="lineno">  757</span><span class="comment"></span> </div>
-<div class="line"><a id="l00758" name="l00758"></a><span class="lineno">  758</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00759" name="l00759"></a><span class="lineno">  759</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l00760" name="l00760"></a><span class="lineno">  760</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00761" name="l00761"></a><span class="lineno">  761</span><span class="comment">   * @param os</span></div>
-<div class="line"><a id="l00762" name="l00762"></a><span class="lineno">  762</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
-<div class="line"><a id="l00763" name="l00763"></a><span class="lineno">  763</span><span class="comment">   * @param verbose</span></div>
-<div class="line"><a id="l00764" name="l00764"></a><span class="lineno">  764</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
-<div class="line"><a id="l00765" name="l00765"></a><span class="lineno">  765</span><span class="comment">   * @return `os`.</span></div>
-<div class="line"><a id="l00766" name="l00766"></a><span class="lineno">  766</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00767" name="l00767"></a><span class="lineno">  767</span>  std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a9c98a61096d86196c073a232e432d03b">to_ostream</a>(std::ostream&amp; os, <span class="keywordtype">bool</span> verbose) <span class="keyword">const override</span>;</div>
-<div class="line"><a id="l00768" name="l00768"></a><span class="lineno">  768</span><span class="comment"></span> </div>
-<div class="line"><a id="l00769" name="l00769"></a><span class="lineno">  769</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00770" name="l00770"></a><span class="lineno">  770</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l00771" name="l00771"></a><span class="lineno">  771</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00772" name="l00772"></a><span class="lineno">  772</span><span class="comment">   * @param raw_buf</span></div>
-<div class="line"><a id="l00773" name="l00773"></a><span class="lineno">  773</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00774" name="l00774"></a><span class="lineno">  774</span><span class="comment">   * @param prefer_no_move</span></div>
-<div class="line"><a id="l00775" name="l00775"></a><span class="lineno">  775</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00776" name="l00776"></a><span class="lineno">  776</span><span class="comment">   * @param raw_packet</span></div>
-<div class="line"><a id="l00777" name="l00777"></a><span class="lineno">  777</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00778" name="l00778"></a><span class="lineno">  778</span><span class="comment">   * @return See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00779" name="l00779"></a><span class="lineno">  779</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00780" name="l00780"></a><span class="lineno">  780</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a1ce651745da7f488ec0bcf3d4f3467a9">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
-<div class="line"><a id="l00781" name="l00781"></a><span class="lineno">  781</span>                                                           <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) <span class="keyword">override</span>;</div>
-<div class="line"><a id="l00782" name="l00782"></a><span class="lineno">  782</span>};</div>
-<div class="line"><a id="l00783" name="l00783"></a><span class="lineno">  783</span><span class="comment"></span> </div>
-<div class="line"><a id="l00784" name="l00784"></a><span class="lineno">  784</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00785" name="l00785"></a><span class="lineno">  785</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level SYN_ACK_ACK packet.</span></div>
-<div class="line"><a id="l00786" name="l00786"></a><span class="lineno">  786</span><span class="comment"> * See Low_lvl_packet doc header for information common to all low-level packets including this one.</span></div>
-<div class="line"><a id="l00787" name="l00787"></a><span class="lineno">  787</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00788" name="l00788"></a><span class="lineno">  788</span><span class="comment"> * A SYN_ACK_ACK packet is sent by the original SYN sender in response to a valid received SYN_ACK,</span></div>
-<div class="line"><a id="l00789" name="l00789"></a><span class="lineno">  789</span><span class="comment"> * completing the 3-way handshake and establishing a Peer_socket to Peer_socket connection.</span></div>
-<div class="line"><a id="l00790" name="l00790"></a><span class="lineno">  790</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00791" name="l00791"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html">  791</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html">Syn_ack_ack_packet</a> : <span class="keyword">public</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a></div>
-<div class="line"><a id="l00792" name="l00792"></a><span class="lineno">  792</span>{</div>
-<div class="line"><a id="l00793" name="l00793"></a><span class="lineno">  793</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l00794" name="l00794"></a><span class="lineno">  794</span> </div>
-<div class="line"><a id="l00795" name="l00795"></a><span class="lineno">  795</span><span class="preprocessor">#pragma pack(push, 1)</span><span class="comment"></span></div>
-<div class="line"><a id="l00796" name="l00796"></a><span class="lineno">  796</span><span class="comment">  /// Packed group affected by `#pragma pack`.</span></div>
-<div class="line"><a id="l00797" name="l00797"></a><span class="lineno">  797</span><span class="comment"></span>  <span class="keyword">struct</span></div>
-<div class="line"><a id="l00798" name="l00798"></a><span class="lineno">  798</span>  {<span class="comment"></span></div>
-<div class="line"><a id="l00799" name="l00799"></a><span class="lineno">  799</span><span class="comment">    /**</span></div>
-<div class="line"><a id="l00800" name="l00800"></a><span class="lineno">  800</span><span class="comment">     * This must equal `Syn_ack_packet` `m_security_token` received in the packet to which `*this` is</span></div>
-<div class="line"><a id="l00801" name="l00801"></a><span class="lineno">  801</span><span class="comment">     * replying.  The other side will only proceed with the connection if the two are equal.</span></div>
-<div class="line"><a id="l00802" name="l00802"></a><span class="lineno">  802</span><span class="comment">     */</span></div>
-<div class="line"><a id="l00803" name="l00803"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#ab2537625fa282f302e586dee1c24cd19">  803</a></span>    <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a872044469cfa05a3abf3f9ab1c7cf03b">security_token_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#ab2537625fa282f302e586dee1c24cd19">m_security_token</a>;</div>
-<div class="line"><a id="l00804" name="l00804"></a><span class="lineno">  804</span><span class="comment"></span> </div>
-<div class="line"><a id="l00805" name="l00805"></a><span class="lineno">  805</span><span class="comment">    /**</span></div>
-<div class="line"><a id="l00806" name="l00806"></a><span class="lineno">  806</span><span class="comment">     * Same meaning as in `Syn_ack_packet` but applied to the essentially independent opposite</span></div>
-<div class="line"><a id="l00807" name="l00807"></a><span class="lineno">  807</span><span class="comment">     * traffic direction of the full-duplex connection being established.</span></div>
-<div class="line"><a id="l00808" name="l00808"></a><span class="lineno">  808</span><span class="comment">     */</span></div>
-<div class="line"><a id="l00809" name="l00809"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a3a3a3d676ec71eee0d2daa56a3b73403">  809</a></span>    <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">rcv_wnd_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a3a3a3d676ec71eee0d2daa56a3b73403">m_rcv_wnd</a>;</div>
-<div class="line"><a id="l00810" name="l00810"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a1a0bad5bc4e9c966709f7bc8a2469bf6">  810</a></span>  } <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a1a0bad5bc4e9c966709f7bc8a2469bf6">m_packed</a>;</div>
-<div class="line"><a id="l00811" name="l00811"></a><span class="lineno">  811</span><span class="preprocessor">#pragma pack(pop)</span></div>
-<div class="line"><a id="l00812" name="l00812"></a><span class="lineno">  812</span> </div>
-<div class="line"><a id="l00813" name="l00813"></a><span class="lineno">  813</span>  <span class="comment">// Type checks.</span></div>
-<div class="line"><a id="l00814" name="l00814"></a><span class="lineno">  814</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;security_token_t&gt;::is_integer</div>
-<div class="line"><a id="l00815" name="l00815"></a><span class="lineno">  815</span>                  &amp;&amp; (!std::numeric_limits&lt;security_token_t&gt;::is_signed),</div>
-<div class="line"><a id="l00816" name="l00816"></a><span class="lineno">  816</span>                <span class="stringliteral">&quot;Security tokens are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l00817" name="l00817"></a><span class="lineno">  817</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;rcv_wnd_t&gt;::is_integer</div>
-<div class="line"><a id="l00818" name="l00818"></a><span class="lineno">  818</span>                  &amp;&amp; (!std::numeric_limits&lt;rcv_wnd_t&gt;::is_signed),</div>
-<div class="line"><a id="l00819" name="l00819"></a><span class="lineno">  819</span>                <span class="stringliteral">&quot;rcv_wnd values are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l00820" name="l00820"></a><span class="lineno">  820</span><span class="comment"></span> </div>
-<div class="line"><a id="l00821" name="l00821"></a><span class="lineno">  821</span><span class="comment">  /// In serialized packet, the type ID byte identifying this as a SYN_ACK_ACK.  Must not equal any other packet type&#39;s.</span></div>
-<div class="line"><a id="l00822" name="l00822"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#ade7cf2a204f400633f079bed7b4b4972">  822</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#ade7cf2a204f400633f079bed7b4b4972">S_RAW_TYPE_ID</a>;</div>
-<div class="line"><a id="l00823" name="l00823"></a><span class="lineno">  823</span> </div>
-<div class="line"><a id="l00824" name="l00824"></a><span class="lineno">  824</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00825" name="l00825"></a><span class="lineno">  825</span><span class="comment"></span> </div>
-<div class="line"><a id="l00826" name="l00826"></a><span class="lineno">  826</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00827" name="l00827"></a><span class="lineno">  827</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l00828" name="l00828"></a><span class="lineno">  828</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00829" name="l00829"></a><span class="lineno">  829</span><span class="comment">   * @param raw_bufs</span></div>
-<div class="line"><a id="l00830" name="l00830"></a><span class="lineno">  830</span><span class="comment">   *        See Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l00831" name="l00831"></a><span class="lineno">  831</span><span class="comment">   * @return See Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l00832" name="l00832"></a><span class="lineno">  832</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00833" name="l00833"></a><span class="lineno">  833</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a817e22c18b67db0e2e4794b962e4365d">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const override</span>;</div>
-<div class="line"><a id="l00834" name="l00834"></a><span class="lineno">  834</span> </div>
-<div class="line"><a id="l00835" name="l00835"></a><span class="lineno">  835</span><span class="keyword">private</span>:</div>
-<div class="line"><a id="l00836" name="l00836"></a><span class="lineno">  836</span>  <span class="comment">// Friends.</span></div>
-<div class="line"><a id="l00837" name="l00837"></a><span class="lineno">  837</span><span class="comment"></span> </div>
-<div class="line"><a id="l00838" name="l00838"></a><span class="lineno">  838</span><span class="comment">  /// Friend of Syn_ack_ack_packet: For access to private constructor `Syn_ack_ack_packet(Logger*)`.</span></div>
-<div class="line"><a id="l00839" name="l00839"></a><span class="lineno">  839</span><span class="comment"></span>  <span class="comment">// @todo Doxygen complains unless I make the above a Doxygen comment.  In other places it doesn&#39;t complain.  Fix...?</span></div>
-<div class="line"><a id="l00840" name="l00840"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a14d8cfa29392fb69ce6b08306e78d1fd">  840</a></span>  <span class="keyword">friend</span> boost::shared_ptr&lt;Syn_ack_ack_packet&gt; Low_lvl_packet::create_uninit_packet&lt;Syn_ack_ack_packet&gt;(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>*);</div>
-<div class="line"><a id="l00841" name="l00841"></a><span class="lineno">  841</span> </div>
-<div class="line"><a id="l00842" name="l00842"></a><span class="lineno">  842</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l00843" name="l00843"></a><span class="lineno">  843</span><span class="comment"></span> </div>
-<div class="line"><a id="l00844" name="l00844"></a><span class="lineno">  844</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00845" name="l00845"></a><span class="lineno">  845</span><span class="comment">   * The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</span></div>
-<div class="line"><a id="l00846" name="l00846"></a><span class="lineno">  846</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00847" name="l00847"></a><span class="lineno">  847</span><span class="comment">   * @param logger_ptr</span></div>
-<div class="line"><a id="l00848" name="l00848"></a><span class="lineno">  848</span><span class="comment">   *        Logger to use subsequently.</span></div>
-<div class="line"><a id="l00849" name="l00849"></a><span class="lineno">  849</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00850" name="l00850"></a><span class="lineno">  850</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a86707d5efb4b1b5ad056a4255976e262">Syn_ack_ack_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
-<div class="line"><a id="l00851" name="l00851"></a><span class="lineno">  851</span> </div>
-<div class="line"><a id="l00852" name="l00852"></a><span class="lineno">  852</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00853" name="l00853"></a><span class="lineno">  853</span><span class="comment"></span> </div>
-<div class="line"><a id="l00854" name="l00854"></a><span class="lineno">  854</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00855" name="l00855"></a><span class="lineno">  855</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l00856" name="l00856"></a><span class="lineno">  856</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00857" name="l00857"></a><span class="lineno">  857</span><span class="comment">   * @param os</span></div>
-<div class="line"><a id="l00858" name="l00858"></a><span class="lineno">  858</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
-<div class="line"><a id="l00859" name="l00859"></a><span class="lineno">  859</span><span class="comment">   * @param verbose</span></div>
-<div class="line"><a id="l00860" name="l00860"></a><span class="lineno">  860</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
-<div class="line"><a id="l00861" name="l00861"></a><span class="lineno">  861</span><span class="comment">   * @return `os`.</span></div>
-<div class="line"><a id="l00862" name="l00862"></a><span class="lineno">  862</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00863" name="l00863"></a><span class="lineno">  863</span>  std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a0f2665713bcedc20db1365412630ff6f">to_ostream</a>(std::ostream&amp; os, <span class="keywordtype">bool</span> verbose) <span class="keyword">const override</span>;</div>
-<div class="line"><a id="l00864" name="l00864"></a><span class="lineno">  864</span><span class="comment"></span> </div>
-<div class="line"><a id="l00865" name="l00865"></a><span class="lineno">  865</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00866" name="l00866"></a><span class="lineno">  866</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l00867" name="l00867"></a><span class="lineno">  867</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00868" name="l00868"></a><span class="lineno">  868</span><span class="comment">   * @param raw_buf</span></div>
-<div class="line"><a id="l00869" name="l00869"></a><span class="lineno">  869</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00870" name="l00870"></a><span class="lineno">  870</span><span class="comment">   * @param prefer_no_move</span></div>
-<div class="line"><a id="l00871" name="l00871"></a><span class="lineno">  871</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00872" name="l00872"></a><span class="lineno">  872</span><span class="comment">   * @param raw_packet</span></div>
-<div class="line"><a id="l00873" name="l00873"></a><span class="lineno">  873</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00874" name="l00874"></a><span class="lineno">  874</span><span class="comment">   * @return See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00875" name="l00875"></a><span class="lineno">  875</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00876" name="l00876"></a><span class="lineno">  876</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a15bb98c2c3c00dc2c2db7f76a932d65c">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
-<div class="line"><a id="l00877" name="l00877"></a><span class="lineno">  877</span>                                                           <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) <span class="keyword">override</span>;</div>
-<div class="line"><a id="l00878" name="l00878"></a><span class="lineno">  878</span>}; <span class="comment">// struct Syn_ack_ack_packet</span></div>
-<div class="line"><a id="l00879" name="l00879"></a><span class="lineno">  879</span><span class="comment"></span> </div>
-<div class="line"><a id="l00880" name="l00880"></a><span class="lineno">  880</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00881" name="l00881"></a><span class="lineno">  881</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level DATA packet.</span></div>
-<div class="line"><a id="l00882" name="l00882"></a><span class="lineno">  882</span><span class="comment"> * See Low_lvl_packet doc header for information common to all low-level packets including this one.</span></div>
-<div class="line"><a id="l00883" name="l00883"></a><span class="lineno">  883</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00884" name="l00884"></a><span class="lineno">  884</span><span class="comment"> * Each DATA packet contains actual data payload packetized from the application-provided stream</span></div>
-<div class="line"><a id="l00885" name="l00885"></a><span class="lineno">  885</span><span class="comment"> * of bytes.  It is identified by the sequence number (encoded in this object) of the first</span></div>
-<div class="line"><a id="l00886" name="l00886"></a><span class="lineno">  886</span><span class="comment"> * byte of that payload.  An individual acknowledgment inside an Ack_packet refers to the Data_packet</span></div>
-<div class="line"><a id="l00887" name="l00887"></a><span class="lineno">  887</span><span class="comment"> * by that first sequence number.  If Low_lvl_packet::m_opt_rexmit_on is `true`, then #m_rexmit_id</span></div>
-<div class="line"><a id="l00888" name="l00888"></a><span class="lineno">  888</span><span class="comment"> * identifies which attempt at sending the payload with this sequence number and payload this</span></div>
-<div class="line"><a id="l00889" name="l00889"></a><span class="lineno">  889</span><span class="comment"> * packet represents: 0 is 1st attempt, 1 is 1st retry, 2 is 2nd retry, etc.  If that option is off,</span></div>
-<div class="line"><a id="l00890" name="l00890"></a><span class="lineno">  890</span><span class="comment"> * then a lost packet is never retransmitted; and therefore #m_rexmit_id is always 0.</span></div>
-<div class="line"><a id="l00891" name="l00891"></a><span class="lineno">  891</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00892" name="l00892"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html">  892</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Data__packet.html">Data_packet</a> : <span class="keyword">public</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a></div>
-<div class="line"><a id="l00893" name="l00893"></a><span class="lineno">  893</span>{</div>
-<div class="line"><a id="l00894" name="l00894"></a><span class="lineno">  894</span>  <span class="comment">// Types.</span></div>
-<div class="line"><a id="l00895" name="l00895"></a><span class="lineno">  895</span><span class="comment"></span> </div>
-<div class="line"><a id="l00896" name="l00896"></a><span class="lineno">  896</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00897" name="l00897"></a><span class="lineno">  897</span><span class="comment">   * Type used to store the retransmission count in DATA and ACK packets.</span></div>
-<div class="line"><a id="l00898" name="l00898"></a><span class="lineno">  898</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00899" name="l00899"></a><span class="lineno">  899</span><span class="comment">   * Why 8 bits?  This handles up 255 retransmissions, which is long after we&#39;d kill the connection</span></div>
-<div class="line"><a id="l00900" name="l00900"></a><span class="lineno">  900</span><span class="comment">   * anyway.</span></div>
-<div class="line"><a id="l00901" name="l00901"></a><span class="lineno">  901</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00902" name="l00902"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#abba220658ada68bae04c9c2ebd06f72c">  902</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">rexmit_id_t</a> = <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a>;</div>
-<div class="line"><a id="l00903" name="l00903"></a><span class="lineno">  903</span> </div>
-<div class="line"><a id="l00904" name="l00904"></a><span class="lineno">  904</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l00905" name="l00905"></a><span class="lineno">  905</span><span class="comment"></span> </div>
-<div class="line"><a id="l00906" name="l00906"></a><span class="lineno">  906</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00907" name="l00907"></a><span class="lineno">  907</span><span class="comment">   * The sequence number of the first byte in the payload; i.e., of `m_data.front()`, a/k/a `m_data[0]`.</span></div>
-<div class="line"><a id="l00908" name="l00908"></a><span class="lineno">  908</span><span class="comment">   * Note that #m_data cannot be empty, so #m_seq_num is always meaningful.</span></div>
-<div class="line"><a id="l00909" name="l00909"></a><span class="lineno">  909</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00910" name="l00910"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#a94d817529e94ac88ee2cea6f3dd1badb">  910</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Data__packet.html#a94d817529e94ac88ee2cea6f3dd1badb">m_seq_num</a>;</div>
-<div class="line"><a id="l00911" name="l00911"></a><span class="lineno">  911</span><span class="comment"></span> </div>
-<div class="line"><a id="l00912" name="l00912"></a><span class="lineno">  912</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00913" name="l00913"></a><span class="lineno">  913</span><span class="comment">   * Retransmit counter of the DATA packet being sent.  Identifies which attempt we are acknowledging</span></div>
-<div class="line"><a id="l00914" name="l00914"></a><span class="lineno">  914</span><span class="comment">   * (0 = initial, 1 = first retransmit, 2 = second retransmit, ...).  Always 0 if `!m_opt_rexmit_on`.</span></div>
-<div class="line"><a id="l00915" name="l00915"></a><span class="lineno">  915</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00916" name="l00916"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#ac149f87b8915213857c707b0f3562ef0">  916</a></span>  <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">rexmit_id_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Data__packet.html#ac149f87b8915213857c707b0f3562ef0">m_rexmit_id</a>;</div>
-<div class="line"><a id="l00917" name="l00917"></a><span class="lineno">  917</span><span class="comment"></span> </div>
-<div class="line"><a id="l00918" name="l00918"></a><span class="lineno">  918</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00919" name="l00919"></a><span class="lineno">  919</span><span class="comment">   * This is the serialized version of `m_data.size()` (see #m_data).  We send this value, even though it could</span></div>
-<div class="line"><a id="l00920" name="l00920"></a><span class="lineno">  920</span><span class="comment">   * be figured out from the overall serialized size, to ensure integrity (see the deserialization logic for details).</span></div>
-<div class="line"><a id="l00921" name="l00921"></a><span class="lineno">  921</span><span class="comment">   * This here is set to `m_data.size()`, when Low_lvl_packet::serialize_to_raw_data() needs to</span></div>
-<div class="line"><a id="l00922" name="l00922"></a><span class="lineno">  922</span><span class="comment">   * serialize that value.  Outside serialization `m_data.size()` is used directly, and this</span></div>
-<div class="line"><a id="l00923" name="l00923"></a><span class="lineno">  923</span><span class="comment">   * value is meaningless.</span></div>
-<div class="line"><a id="l00924" name="l00924"></a><span class="lineno">  924</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00925" name="l00925"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#a07cf37a89d947f40354a79a885407567">  925</a></span>  <span class="keyword">mutable</span> uint16_t <a class="code hl_variable" href="structflow_1_1net__flow_1_1Data__packet.html#a07cf37a89d947f40354a79a885407567">m_data_size_raw</a>;</div>
-<div class="line"><a id="l00926" name="l00926"></a><span class="lineno">  926</span><span class="comment"></span> </div>
-<div class="line"><a id="l00927" name="l00927"></a><span class="lineno">  927</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00928" name="l00928"></a><span class="lineno">  928</span><span class="comment">   * The payload.  Cannot be `empty()`.</span></div>
-<div class="line"><a id="l00929" name="l00929"></a><span class="lineno">  929</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00930" name="l00930"></a><span class="lineno">  930</span><span class="comment">   * As of this writing there is an important (for performance) subtlety about how this is originally filled in</span></div>
-<div class="line"><a id="l00931" name="l00931"></a><span class="lineno">  931</span><span class="comment">   * when deserializing a wire-arrived packet.  See Data_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00932" name="l00932"></a><span class="lineno">  932</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00933" name="l00933"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d">  933</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d">m_data</a>;</div>
-<div class="line"><a id="l00934" name="l00934"></a><span class="lineno">  934</span> </div>
-<div class="line"><a id="l00935" name="l00935"></a><span class="lineno">  935</span>  <span class="comment">// Type checks.</span></div>
-<div class="line"><a id="l00936" name="l00936"></a><span class="lineno">  936</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_integer</div>
-<div class="line"><a id="l00937" name="l00937"></a><span class="lineno">  937</span>                  &amp;&amp; (!std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_signed),</div>
-<div class="line"><a id="l00938" name="l00938"></a><span class="lineno">  938</span>                <span class="stringliteral">&quot;Raw sequence numbers are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l00939" name="l00939"></a><span class="lineno">  939</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;rexmit_id_t&gt;::is_integer</div>
-<div class="line"><a id="l00940" name="l00940"></a><span class="lineno">  940</span>                  &amp;&amp; (!std::numeric_limits&lt;rexmit_id_t&gt;::is_signed),</div>
-<div class="line"><a id="l00941" name="l00941"></a><span class="lineno">  941</span>                <span class="stringliteral">&quot;Retransmission IDs are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l00942" name="l00942"></a><span class="lineno">  942</span><span class="comment"></span> </div>
-<div class="line"><a id="l00943" name="l00943"></a><span class="lineno">  943</span><span class="comment">  /// In serialized packet, the type ID byte identifying this as a DATA packet.  Must not equal any other packet type&#39;s.</span></div>
-<div class="line"><a id="l00944" name="l00944"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#a463336b35dde27c250b477ca35adb7d4">  944</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Data__packet.html#a463336b35dde27c250b477ca35adb7d4">S_RAW_TYPE_ID</a>;</div>
-<div class="line"><a id="l00945" name="l00945"></a><span class="lineno">  945</span> </div>
-<div class="line"><a id="l00946" name="l00946"></a><span class="lineno">  946</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00947" name="l00947"></a><span class="lineno">  947</span><span class="comment"></span> </div>
-<div class="line"><a id="l00948" name="l00948"></a><span class="lineno">  948</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00949" name="l00949"></a><span class="lineno">  949</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l00950" name="l00950"></a><span class="lineno">  950</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00951" name="l00951"></a><span class="lineno">  951</span><span class="comment">   * @param raw_bufs</span></div>
-<div class="line"><a id="l00952" name="l00952"></a><span class="lineno">  952</span><span class="comment">   *        See Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l00953" name="l00953"></a><span class="lineno">  953</span><span class="comment">   * @return See Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l00954" name="l00954"></a><span class="lineno">  954</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00955" name="l00955"></a><span class="lineno">  955</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Data__packet.html#add582f24dd9442f987f2c458e4b5d3d7">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const override</span>;</div>
-<div class="line"><a id="l00956" name="l00956"></a><span class="lineno">  956</span> </div>
-<div class="line"><a id="l00957" name="l00957"></a><span class="lineno">  957</span><span class="keyword">private</span>:</div>
-<div class="line"><a id="l00958" name="l00958"></a><span class="lineno">  958</span>  <span class="comment">// Friends.</span></div>
-<div class="line"><a id="l00959" name="l00959"></a><span class="lineno">  959</span><span class="comment"></span> </div>
-<div class="line"><a id="l00960" name="l00960"></a><span class="lineno">  960</span><span class="comment">  /// Friend of Data_packet: For access to private constructor `Data_packet(Logger*)`.</span></div>
-<div class="line"><a id="l00961" name="l00961"></a><span class="lineno">  961</span><span class="comment"></span>  <span class="comment">// @todo Doxygen complains unless I make the above a Doxygen comment.  In other places it doesn&#39;t complain.  Fix...?</span></div>
-<div class="line"><a id="l00962" name="l00962"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#a94c3ee43fa396c27a95ab54830700d1a">  962</a></span>  <span class="keyword">friend</span> boost::shared_ptr&lt;Data_packet&gt; Low_lvl_packet::create_uninit_packet&lt;Data_packet&gt;(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>*);</div>
-<div class="line"><a id="l00963" name="l00963"></a><span class="lineno">  963</span> </div>
-<div class="line"><a id="l00964" name="l00964"></a><span class="lineno">  964</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l00965" name="l00965"></a><span class="lineno">  965</span><span class="comment"></span> </div>
-<div class="line"><a id="l00966" name="l00966"></a><span class="lineno">  966</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00967" name="l00967"></a><span class="lineno">  967</span><span class="comment">   * The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</span></div>
-<div class="line"><a id="l00968" name="l00968"></a><span class="lineno">  968</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00969" name="l00969"></a><span class="lineno">  969</span><span class="comment">   * @param logger_ptr</span></div>
-<div class="line"><a id="l00970" name="l00970"></a><span class="lineno">  970</span><span class="comment">   *        Logger to use subsequently.</span></div>
-<div class="line"><a id="l00971" name="l00971"></a><span class="lineno">  971</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00972" name="l00972"></a><span class="lineno">  972</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Data__packet.html#a0c5cb656fd8fd513d66a349285558900">Data_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
-<div class="line"><a id="l00973" name="l00973"></a><span class="lineno">  973</span> </div>
-<div class="line"><a id="l00974" name="l00974"></a><span class="lineno">  974</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00975" name="l00975"></a><span class="lineno">  975</span><span class="comment"></span> </div>
-<div class="line"><a id="l00976" name="l00976"></a><span class="lineno">  976</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00977" name="l00977"></a><span class="lineno">  977</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l00978" name="l00978"></a><span class="lineno">  978</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00979" name="l00979"></a><span class="lineno">  979</span><span class="comment">   * @param os</span></div>
-<div class="line"><a id="l00980" name="l00980"></a><span class="lineno">  980</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
-<div class="line"><a id="l00981" name="l00981"></a><span class="lineno">  981</span><span class="comment">   * @param verbose</span></div>
-<div class="line"><a id="l00982" name="l00982"></a><span class="lineno">  982</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
-<div class="line"><a id="l00983" name="l00983"></a><span class="lineno">  983</span><span class="comment">   * @return `os`.</span></div>
-<div class="line"><a id="l00984" name="l00984"></a><span class="lineno">  984</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00985" name="l00985"></a><span class="lineno">  985</span>  std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Data__packet.html#a0bfa19b23164c8189c05d3c2417cf23b">to_ostream</a>(std::ostream&amp; os, <span class="keywordtype">bool</span> verbose) <span class="keyword">const override</span>;</div>
-<div class="line"><a id="l00986" name="l00986"></a><span class="lineno">  986</span><span class="comment"></span> </div>
-<div class="line"><a id="l00987" name="l00987"></a><span class="lineno">  987</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00988" name="l00988"></a><span class="lineno">  988</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l00989" name="l00989"></a><span class="lineno">  989</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00990" name="l00990"></a><span class="lineno">  990</span><span class="comment">   * @param raw_buf</span></div>
-<div class="line"><a id="l00991" name="l00991"></a><span class="lineno">  991</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00992" name="l00992"></a><span class="lineno">  992</span><span class="comment">   * @param prefer_no_move</span></div>
-<div class="line"><a id="l00993" name="l00993"></a><span class="lineno">  993</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00994" name="l00994"></a><span class="lineno">  994</span><span class="comment">   * @param raw_packet</span></div>
-<div class="line"><a id="l00995" name="l00995"></a><span class="lineno">  995</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00996" name="l00996"></a><span class="lineno">  996</span><span class="comment">   * @return See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l00997" name="l00997"></a><span class="lineno">  997</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00998" name="l00998"></a><span class="lineno">  998</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Data__packet.html#ac2a390c4cb7abfeec7c658c866dbfc06">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
-<div class="line"><a id="l00999" name="l00999"></a><span class="lineno">  999</span>                                                           <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) <span class="keyword">override</span>;</div>
-<div class="line"><a id="l01000" name="l01000"></a><span class="lineno"> 1000</span>}; <span class="comment">// struct Data_packet</span></div>
-<div class="line"><a id="l01001" name="l01001"></a><span class="lineno"> 1001</span><span class="comment"></span> </div>
-<div class="line"><a id="l01002" name="l01002"></a><span class="lineno"> 1002</span><span class="comment">/**</span></div>
-<div class="line"><a id="l01003" name="l01003"></a><span class="lineno"> 1003</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level ACK packet.</span></div>
-<div class="line"><a id="l01004" name="l01004"></a><span class="lineno"> 1004</span><span class="comment"> * See Low_lvl_packet doc header for information common to all low-level packets including this one.</span></div>
-<div class="line"><a id="l01005" name="l01005"></a><span class="lineno"> 1005</span><span class="comment"> *</span></div>
-<div class="line"><a id="l01006" name="l01006"></a><span class="lineno"> 1006</span><span class="comment"> * Each ACK packet encapsulates 0 or more individual acknowledgments, each acknowledging receipt of</span></div>
-<div class="line"><a id="l01007" name="l01007"></a><span class="lineno"> 1007</span><span class="comment"> * a specific, distinct Data_packaet; and the current rcv_wnd (receive window state) on the ACK sender&#39;s</span></div>
-<div class="line"><a id="l01008" name="l01008"></a><span class="lineno"> 1008</span><span class="comment"> * side.  The latter datum is always present.  If individual acks are present, then the rcv_wnd advertising</span></div>
-<div class="line"><a id="l01009" name="l01009"></a><span class="lineno"> 1009</span><span class="comment"> * is merely opportunistic.  If NO individual acks are present, then the rcv_wnd advertising is intentional</span></div>
-<div class="line"><a id="l01010" name="l01010"></a><span class="lineno"> 1010</span><span class="comment"> * for its own sake.  The algorithm for the latter is discussed elsewhere.</span></div>
-<div class="line"><a id="l01011" name="l01011"></a><span class="lineno"> 1011</span><span class="comment"> *</span></div>
-<div class="line"><a id="l01012" name="l01012"></a><span class="lineno"> 1012</span><span class="comment"> * The mechanics of individual acks are further explored in the doc header for Ack_packet::Individual_ack</span></div>
-<div class="line"><a id="l01013" name="l01013"></a><span class="lineno"> 1013</span><span class="comment"> * nested `struct`.</span></div>
-<div class="line"><a id="l01014" name="l01014"></a><span class="lineno"> 1014</span><span class="comment"> *</span></div>
-<div class="line"><a id="l01015" name="l01015"></a><span class="lineno"> 1015</span><span class="comment"> * @todo Conceivably, since Ack_packet actually stores 1+ acknowledgments, it should become Acks_packet, of</span></div>
-<div class="line"><a id="l01016" name="l01016"></a><span class="lineno"> 1016</span><span class="comment"> * type ACKS (not ACK).  Many comments and log messages would become clearer, as no one would assume an individual</span></div>
-<div class="line"><a id="l01017" name="l01017"></a><span class="lineno"> 1017</span><span class="comment"> * packet&#39;s acknowledgment when reading &quot;an ACK&quot; or similar phrase.</span></div>
-<div class="line"><a id="l01018" name="l01018"></a><span class="lineno"> 1018</span><span class="comment"> */</span></div>
-<div class="line"><a id="l01019" name="l01019"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html"> 1019</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet.html">Ack_packet</a> : <span class="keyword">public</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a></div>
-<div class="line"><a id="l01020" name="l01020"></a><span class="lineno"> 1020</span>{</div>
-<div class="line"><a id="l01021" name="l01021"></a><span class="lineno"> 1021</span>  <span class="comment">// Types.</span></div>
-<div class="line"><a id="l01022" name="l01022"></a><span class="lineno"> 1022</span><span class="comment"></span> </div>
-<div class="line"><a id="l01023" name="l01023"></a><span class="lineno"> 1023</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01024" name="l01024"></a><span class="lineno"> 1024</span><span class="comment">   * Type used to store the ACK delay for a given individual acknowledged packet.  The value</span></div>
-<div class="line"><a id="l01025" name="l01025"></a><span class="lineno"> 1025</span><span class="comment">   * specifies the number of multiples of `Ack_delay_time_unit(1)` comprising a packet&#39;s ACK delay.</span></div>
-<div class="line"><a id="l01026" name="l01026"></a><span class="lineno"> 1026</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01027" name="l01027"></a><span class="lineno"> 1027</span><span class="comment">   * An earlier version of `net_flow` used the unit milliseconds and the encoding type uint16_t.  The</span></div>
-<div class="line"><a id="l01028" name="l01028"></a><span class="lineno"> 1028</span><span class="comment">   * reasoning was that this allowed a maximum ACK delay of ~65 sec which should be plenty; and that</span></div>
-<div class="line"><a id="l01029" name="l01029"></a><span class="lineno"> 1029</span><span class="comment">   * the 1-millisecond finegrainedness was acceptable.  However when implementing queue delay-based</span></div>
-<div class="line"><a id="l01030" name="l01030"></a><span class="lineno"> 1030</span><span class="comment">   * congestion control (like FAST or Vegas) we realized it is important for RTTs (which use the ACK</span></div>
-<div class="line"><a id="l01031" name="l01031"></a><span class="lineno"> 1031</span><span class="comment">   * delay value) to be quite precise (microsecond level or so).  Therefore, to be totally safe, we</span></div>
-<div class="line"><a id="l01032" name="l01032"></a><span class="lineno"> 1032</span><span class="comment">   * choose to use the same units as #Fine_duration, which is how we compute all time periods.  As</span></div>
-<div class="line"><a id="l01033" name="l01033"></a><span class="lineno"> 1033</span><span class="comment">   * for the the encoding width, we use 64 bits just in case.</span></div>
-<div class="line"><a id="l01034" name="l01034"></a><span class="lineno"> 1034</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01035" name="l01035"></a><span class="lineno"> 1035</span><span class="comment">   * @todo Reconsider the encoding width.  If `Ack_delay_time_unit(1)` is a nanosecond, then 32 bits</span></div>
-<div class="line"><a id="l01036" name="l01036"></a><span class="lineno"> 1036</span><span class="comment">   * would support a maximum delay of ~4.1 seconds which is likely fine for most real-world</span></div>
-<div class="line"><a id="l01037" name="l01037"></a><span class="lineno"> 1037</span><span class="comment">   * scenarios.  This would reduce the size of ACK packets quite a bit.</span></div>
-<div class="line"><a id="l01038" name="l01038"></a><span class="lineno"> 1038</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01039" name="l01039"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe"> 1039</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">ack_delay_t</a> = uint64_t;</div>
-<div class="line"><a id="l01040" name="l01040"></a><span class="lineno"> 1040</span><span class="comment"></span> </div>
-<div class="line"><a id="l01041" name="l01041"></a><span class="lineno"> 1041</span><span class="comment">  /// `Ack_delay_time_unit(1)` is the duration corresponding to the #ack_delay_t value 1; and proportionally further.</span></div>
-<div class="line"><a id="l01042" name="l01042"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c"> 1042</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c">Ack_delay_time_unit</a> = <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>;</div>
-<div class="line"><a id="l01043" name="l01043"></a><span class="lineno"> 1043</span> </div>
-<div class="line"><a id="l01044" name="l01044"></a><span class="lineno"> 1044</span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">Individual_ack</a>;</div>
-<div class="line"><a id="l01045" name="l01045"></a><span class="lineno"> 1045</span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html">Individual_ack_rexmit_off</a>;</div>
-<div class="line"><a id="l01046" name="l01046"></a><span class="lineno"> 1046</span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html">Individual_ack_rexmit_on</a>;</div>
-<div class="line"><a id="l01047" name="l01047"></a><span class="lineno"> 1047</span> </div>
-<div class="line"><a id="l01048" name="l01048"></a><span class="lineno"> 1048</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l01049" name="l01049"></a><span class="lineno"> 1049</span><span class="comment"></span> </div>
-<div class="line"><a id="l01050" name="l01050"></a><span class="lineno"> 1050</span><span class="comment">  /// Current receive window (remaining Receive buffer size) of the ACK sender.</span></div>
-<div class="line"><a id="l01051" name="l01051"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#a56b2560b87540a3cf5c7bba9e9666641"> 1051</a></span><span class="comment"></span>  <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">rcv_wnd_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet.html#a56b2560b87540a3cf5c7bba9e9666641">m_rcv_wnd</a>;</div>
-<div class="line"><a id="l01052" name="l01052"></a><span class="lineno"> 1052</span><span class="comment"></span> </div>
-<div class="line"><a id="l01053" name="l01053"></a><span class="lineno"> 1053</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01054" name="l01054"></a><span class="lineno"> 1054</span><span class="comment">   * This is the serialized version of `m_rcv_acked_packets_rexmit_{on|off}_out.size()` and</span></div>
-<div class="line"><a id="l01055" name="l01055"></a><span class="lineno"> 1055</span><span class="comment">   * `m_rcv_acked_packets.size()` (whichever is applicable in context).</span></div>
-<div class="line"><a id="l01056" name="l01056"></a><span class="lineno"> 1056</span><span class="comment">   * We send this value, even though it could be figured out from the overall serialized</span></div>
-<div class="line"><a id="l01057" name="l01057"></a><span class="lineno"> 1057</span><span class="comment">   * size, to ensure integrity (see the deserialization logic for details).</span></div>
-<div class="line"><a id="l01058" name="l01058"></a><span class="lineno"> 1058</span><span class="comment">   * This here is set to `size()`, when Low_lvl_packet::serialize_to_raw_data() needs to</span></div>
-<div class="line"><a id="l01059" name="l01059"></a><span class="lineno"> 1059</span><span class="comment">   * serialize that value.  Outside serialization `size()` is used directly, and this</span></div>
-<div class="line"><a id="l01060" name="l01060"></a><span class="lineno"> 1060</span><span class="comment">   * value is meaningless.</span></div>
-<div class="line"><a id="l01061" name="l01061"></a><span class="lineno"> 1061</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01062" name="l01062"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#aae3806ebf76e628494fd6f7681c01409"> 1062</a></span>  <span class="keyword">mutable</span> uint16_t <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet.html#aae3806ebf76e628494fd6f7681c01409">m_rcv_acked_packets_rexmit_out_size</a>;</div>
-<div class="line"><a id="l01063" name="l01063"></a><span class="lineno"> 1063</span> </div>
-<div class="line"><a id="l01064" name="l01064"></a><span class="lineno"> 1064</span>  <span class="comment">// Type checks.</span></div>
-<div class="line"><a id="l01065" name="l01065"></a><span class="lineno"> 1065</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;rcv_wnd_t&gt;::is_integer</div>
-<div class="line"><a id="l01066" name="l01066"></a><span class="lineno"> 1066</span>                  &amp;&amp; (!std::numeric_limits&lt;rcv_wnd_t&gt;::is_signed),</div>
-<div class="line"><a id="l01067" name="l01067"></a><span class="lineno"> 1067</span>                <span class="stringliteral">&quot;rcv_wnd values are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l01068" name="l01068"></a><span class="lineno"> 1068</span><span class="comment"></span> </div>
-<div class="line"><a id="l01069" name="l01069"></a><span class="lineno"> 1069</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01070" name="l01070"></a><span class="lineno"> 1070</span><span class="comment">   * List of *incoming* (post-deserialization of ACK) acknowledgments of DATA packets,</span></div>
-<div class="line"><a id="l01071" name="l01071"></a><span class="lineno"> 1071</span><span class="comment">   * each identified by its first datum&#39;s sequence number as</span></div>
-<div class="line"><a id="l01072" name="l01072"></a><span class="lineno"> 1072</span><span class="comment">   * provided by the other side and ordered in the chronological order they were received.</span></div>
-<div class="line"><a id="l01073" name="l01073"></a><span class="lineno"> 1073</span><span class="comment">   * This may also be empty, in which case the containing ACK acknowledges no DATA packets but only</span></div>
-<div class="line"><a id="l01074" name="l01074"></a><span class="lineno"> 1074</span><span class="comment">   * advertises the current receive window size (#m_rcv_wnd).  (Note that it advertises it if</span></div>
-<div class="line"><a id="l01075" name="l01075"></a><span class="lineno"> 1075</span><span class="comment">   * #m_rcv_acked_packets is NOT empty as well.)</span></div>
-<div class="line"><a id="l01076" name="l01076"></a><span class="lineno"> 1076</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01077" name="l01077"></a><span class="lineno"> 1077</span><span class="comment">   * This is used if and only if this Ack_packet is incoming.  See #m_rcv_acked_packets_rexmit_on_out</span></div>
-<div class="line"><a id="l01078" name="l01078"></a><span class="lineno"> 1078</span><span class="comment">   * and #m_rcv_acked_packets_rexmit_off_out for the outgoing scenario.</span></div>
-<div class="line"><a id="l01079" name="l01079"></a><span class="lineno"> 1079</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01080" name="l01080"></a><span class="lineno"> 1080</span><span class="comment">   * Unlike vanilla TCP from RFC 793, which features cumulative acknowledgment (wherein only the</span></div>
-<div class="line"><a id="l01081" name="l01081"></a><span class="lineno"> 1081</span><span class="comment">   * latest received segment BEFORE any unreceived gap is acknowledged, thus just one total number</span></div>
-<div class="line"><a id="l01082" name="l01082"></a><span class="lineno"> 1082</span><span class="comment">   * in the ACK), and unlike later enhanced TCPs, which feature both cumulative acknowledgement</span></div>
-<div class="line"><a id="l01083" name="l01083"></a><span class="lineno"> 1083</span><span class="comment">   * and individual ACKs (Selective ACKs), we use something similar to Selective ACKs only.  That</span></div>
-<div class="line"><a id="l01084" name="l01084"></a><span class="lineno"> 1084</span><span class="comment">   * is, we only acknowledge each packet individually (though we combine many such little</span></div>
-<div class="line"><a id="l01085" name="l01085"></a><span class="lineno"> 1085</span><span class="comment">   * acknowledgments into one packet via delayed ACKs).  Moreover, we do not piggy-back ACK info</span></div>
-<div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span><span class="comment">   * onto DATA packets; ACK is its own type.</span></div>
-<div class="line"><a id="l01087" name="l01087"></a><span class="lineno"> 1087</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01088" name="l01088"></a><span class="lineno"> 1088</span><span class="comment">   * Rationale for using SACKs only: Selective ACKs help greatly in giving accurate congestion</span></div>
-<div class="line"><a id="l01089" name="l01089"></a><span class="lineno"> 1089</span><span class="comment">   * control data (e.g., ACK delay per packet, dropped packets) and remove complex ambiguities of</span></div>
-<div class="line"><a id="l01090" name="l01090"></a><span class="lineno"> 1090</span><span class="comment">   * trying to interpret cumulative ACKs for that purpose.  For retransmits, when enabled, Selective</span></div>
-<div class="line"><a id="l01091" name="l01091"></a><span class="lineno"> 1091</span><span class="comment">   * ACKs also greatly simplify the design choices (since we know exactly what they don&#39;t have</span></div>
-<div class="line"><a id="l01092" name="l01092"></a><span class="lineno"> 1092</span><span class="comment">   * [assuming no lost ACKs], we can send exactly what they want and no more).</span></div>
-<div class="line"><a id="l01093" name="l01093"></a><span class="lineno"> 1093</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01094" name="l01094"></a><span class="lineno"> 1094</span><span class="comment">   * Rationale for keeping ACK and DATA separate: This is less clear-cut.  It is easier to think</span></div>
-<div class="line"><a id="l01095" name="l01095"></a><span class="lineno"> 1095</span><span class="comment">   * about, certainly, as the two types of traffic aren&#39;t really logically related in a full-duplex</span></div>
-<div class="line"><a id="l01096" name="l01096"></a><span class="lineno"> 1096</span><span class="comment">   * connection.  On the other hand it increases overhead.  On the third hand that disadvantage is</span></div>
-<div class="line"><a id="l01097" name="l01097"></a><span class="lineno"> 1097</span><span class="comment">   * not a big deal assuming mostly unidirectional traffic flow (which is typical), since most of</span></div>
-<div class="line"><a id="l01098" name="l01098"></a><span class="lineno"> 1098</span><span class="comment">   * the time the ACKs would be data-less anyway in that situation.  Delayed ACKs also help combat</span></div>
-<div class="line"><a id="l01099" name="l01099"></a><span class="lineno"> 1099</span><span class="comment">   * overhead -- somewhat.</span></div>
-<div class="line"><a id="l01100" name="l01100"></a><span class="lineno"> 1100</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01101" name="l01101"></a><span class="lineno"> 1101</span><span class="comment">   * Rationale for delayed ACKs a/k/a accumulating more than 1 acknowledgment into an ACK: Combat</span></div>
-<div class="line"><a id="l01102" name="l01102"></a><span class="lineno"> 1102</span><span class="comment">   * overhead which can be a big deal for high bitrate streaming traffic for example (research</span></div>
-<div class="line"><a id="l01103" name="l01103"></a><span class="lineno"> 1103</span><span class="comment">   * shows ACK flow can be 10% of data flow in the other direction).  The cost is that the other</span></div>
-<div class="line"><a id="l01104" name="l01104"></a><span class="lineno"> 1104</span><span class="comment">   * side gets somewhat delayed congestion control information, but the delay can be tuned.  In</span></div>
-<div class="line"><a id="l01105" name="l01105"></a><span class="lineno"> 1105</span><span class="comment">   * TCP implementations delayed ACKs appear to be universal since a long time ago.</span></div>
-<div class="line"><a id="l01106" name="l01106"></a><span class="lineno"> 1106</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01107" name="l01107"></a><span class="lineno"> 1107</span><span class="comment">   * Any two packets represented by these `Individual_ack`s may be duplicates of each other (same</span></div>
-<div class="line"><a id="l01108" name="l01108"></a><span class="lineno"> 1108</span><span class="comment">   * Sequence_number, possibly different delay values).  It&#39;s up to the sender (receiver of ACK)</span></div>
-<div class="line"><a id="l01109" name="l01109"></a><span class="lineno"> 1109</span><span class="comment">   * to sort it out.  However, again, they MUST be ordered chronologicaly based on the time when</span></div>
-<div class="line"><a id="l01110" name="l01110"></a><span class="lineno"> 1110</span><span class="comment">   * they were received; from earliest to latest.</span></div>
-<div class="line"><a id="l01111" name="l01111"></a><span class="lineno"> 1111</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01112" name="l01112"></a><span class="lineno"> 1112</span><span class="comment">   * Storing shared pointers to avoid copying of `struct`s (however small) during internal</span></div>
-<div class="line"><a id="l01113" name="l01113"></a><span class="lineno"> 1113</span><span class="comment">   * reshuffling; shared instead of raw pointers to not worry about `delete`.</span></div>
-<div class="line"><a id="l01114" name="l01114"></a><span class="lineno"> 1114</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01115" name="l01115"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#a232e22e04614ead19fa4531a89838015"> 1115</a></span>  std::vector&lt;boost::shared_ptr&lt;Individual_ack&gt;&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet.html#a232e22e04614ead19fa4531a89838015">m_rcv_acked_packets</a>;</div>
-<div class="line"><a id="l01116" name="l01116"></a><span class="lineno"> 1116</span><span class="comment"></span> </div>
-<div class="line"><a id="l01117" name="l01117"></a><span class="lineno"> 1117</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01118" name="l01118"></a><span class="lineno"> 1118</span><span class="comment">   * Equivalent of #m_rcv_acked_packets but used for *outgoing* (pre-serialization of ACK) acknowledgments</span></div>
-<div class="line"><a id="l01119" name="l01119"></a><span class="lineno"> 1119</span><span class="comment">   * and only if retransmission is disabled.  See notes in Individual_ack_rexmit_off doc header about how</span></div>
-<div class="line"><a id="l01120" name="l01120"></a><span class="lineno"> 1120</span><span class="comment">   * this is used for efficient serialization of Ack_packet.</span></div>
-<div class="line"><a id="l01121" name="l01121"></a><span class="lineno"> 1121</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01122" name="l01122"></a><span class="lineno"> 1122</span><span class="comment">   * This is used if and only if Ack_packet is outgoing, and retransmission is disabled.</span></div>
-<div class="line"><a id="l01123" name="l01123"></a><span class="lineno"> 1123</span><span class="comment">   * See #m_rcv_acked_packets for the incoming scenario.</span></div>
-<div class="line"><a id="l01124" name="l01124"></a><span class="lineno"> 1124</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01125" name="l01125"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#aebad844e9061da02db8f168374869f9e"> 1125</a></span>  std::vector&lt;Individual_ack_rexmit_off&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet.html#aebad844e9061da02db8f168374869f9e">m_rcv_acked_packets_rexmit_off_out</a>;</div>
-<div class="line"><a id="l01126" name="l01126"></a><span class="lineno"> 1126</span><span class="comment"></span> </div>
-<div class="line"><a id="l01127" name="l01127"></a><span class="lineno"> 1127</span><span class="comment">  /// Equivalent of #m_rcv_acked_packets_rexmit_off_out but for retransmission enabled.</span></div>
-<div class="line"><a id="l01128" name="l01128"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#abfcb97c4f3f8552c619b6aba07674063"> 1128</a></span><span class="comment"></span>  std::vector&lt;Individual_ack_rexmit_on&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet.html#abfcb97c4f3f8552c619b6aba07674063">m_rcv_acked_packets_rexmit_on_out</a>;</div>
-<div class="line"><a id="l01129" name="l01129"></a><span class="lineno"> 1129</span><span class="comment"></span> </div>
-<div class="line"><a id="l01130" name="l01130"></a><span class="lineno"> 1130</span><span class="comment">  /// In serialized packet, the type ID byte identifying this as an ACK packet.  Must not equal any other packet type&#39;s.</span></div>
-<div class="line"><a id="l01131" name="l01131"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#aa57707612db973cb99a12ef81f091c38"> 1131</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet.html#aa57707612db973cb99a12ef81f091c38">S_RAW_TYPE_ID</a>;</div>
-<div class="line"><a id="l01132" name="l01132"></a><span class="lineno"> 1132</span> </div>
-<div class="line"><a id="l01133" name="l01133"></a><span class="lineno"> 1133</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l01134" name="l01134"></a><span class="lineno"> 1134</span><span class="comment"></span> </div>
-<div class="line"><a id="l01135" name="l01135"></a><span class="lineno"> 1135</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01136" name="l01136"></a><span class="lineno"> 1136</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l01137" name="l01137"></a><span class="lineno"> 1137</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01138" name="l01138"></a><span class="lineno"> 1138</span><span class="comment">   * @param raw_bufs</span></div>
-<div class="line"><a id="l01139" name="l01139"></a><span class="lineno"> 1139</span><span class="comment">   *        See Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l01140" name="l01140"></a><span class="lineno"> 1140</span><span class="comment">   * @return See Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l01141" name="l01141"></a><span class="lineno"> 1141</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01142" name="l01142"></a><span class="lineno"> 1142</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet.html#a878162c8ec16ab4ee1b3ea4bbe4b51c0">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const override</span>;</div>
-<div class="line"><a id="l01143" name="l01143"></a><span class="lineno"> 1143</span> </div>
-<div class="line"><a id="l01144" name="l01144"></a><span class="lineno"> 1144</span><span class="keyword">private</span>:</div>
-<div class="line"><a id="l01145" name="l01145"></a><span class="lineno"> 1145</span>  <span class="comment">// Friends.</span></div>
-<div class="line"><a id="l01146" name="l01146"></a><span class="lineno"> 1146</span><span class="comment"></span> </div>
-<div class="line"><a id="l01147" name="l01147"></a><span class="lineno"> 1147</span><span class="comment">  /// Friend of Ack_packet: For access to private constructor `Ack_packet(Logger*)`.</span></div>
-<div class="line"><a id="l01148" name="l01148"></a><span class="lineno"> 1148</span><span class="comment"></span>  <span class="comment">// @todo Doxygen complains unless I make the above a Doxygen comment.  In other places it doesn&#39;t complain.  Fix...?</span></div>
-<div class="line"><a id="l01149" name="l01149"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#a88d164cbb8a4166aedc4afcca51048e8"> 1149</a></span>  <span class="keyword">friend</span> boost::shared_ptr&lt;Ack_packet&gt; Low_lvl_packet::create_uninit_packet&lt;Ack_packet&gt;(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>*);</div>
-<div class="line"><a id="l01150" name="l01150"></a><span class="lineno"> 1150</span> </div>
-<div class="line"><a id="l01151" name="l01151"></a><span class="lineno"> 1151</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l01152" name="l01152"></a><span class="lineno"> 1152</span><span class="comment"></span> </div>
-<div class="line"><a id="l01153" name="l01153"></a><span class="lineno"> 1153</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01154" name="l01154"></a><span class="lineno"> 1154</span><span class="comment">   * The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</span></div>
-<div class="line"><a id="l01155" name="l01155"></a><span class="lineno"> 1155</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01156" name="l01156"></a><span class="lineno"> 1156</span><span class="comment">   * @param logger_ptr</span></div>
-<div class="line"><a id="l01157" name="l01157"></a><span class="lineno"> 1157</span><span class="comment">   *        Logger to use subsequently.</span></div>
-<div class="line"><a id="l01158" name="l01158"></a><span class="lineno"> 1158</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01159" name="l01159"></a><span class="lineno"> 1159</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet.html#acef61dca75aa49d653acdfd96b065723">Ack_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
-<div class="line"><a id="l01160" name="l01160"></a><span class="lineno"> 1160</span> </div>
-<div class="line"><a id="l01161" name="l01161"></a><span class="lineno"> 1161</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l01162" name="l01162"></a><span class="lineno"> 1162</span><span class="comment"></span> </div>
-<div class="line"><a id="l01163" name="l01163"></a><span class="lineno"> 1163</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01164" name="l01164"></a><span class="lineno"> 1164</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l01165" name="l01165"></a><span class="lineno"> 1165</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01166" name="l01166"></a><span class="lineno"> 1166</span><span class="comment">   * @param os</span></div>
-<div class="line"><a id="l01167" name="l01167"></a><span class="lineno"> 1167</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
-<div class="line"><a id="l01168" name="l01168"></a><span class="lineno"> 1168</span><span class="comment">   * @param verbose</span></div>
-<div class="line"><a id="l01169" name="l01169"></a><span class="lineno"> 1169</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
-<div class="line"><a id="l01170" name="l01170"></a><span class="lineno"> 1170</span><span class="comment">   * @return `os`.</span></div>
-<div class="line"><a id="l01171" name="l01171"></a><span class="lineno"> 1171</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01172" name="l01172"></a><span class="lineno"> 1172</span>  std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet.html#a49659e0e672d324ad17e2f4240604b49">to_ostream</a>(std::ostream&amp; os, <span class="keywordtype">bool</span> verbose) <span class="keyword">const override</span>;</div>
-<div class="line"><a id="l01173" name="l01173"></a><span class="lineno"> 1173</span><span class="comment"></span> </div>
-<div class="line"><a id="l01174" name="l01174"></a><span class="lineno"> 1174</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01175" name="l01175"></a><span class="lineno"> 1175</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l01176" name="l01176"></a><span class="lineno"> 1176</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01177" name="l01177"></a><span class="lineno"> 1177</span><span class="comment">   * @param raw_buf</span></div>
-<div class="line"><a id="l01178" name="l01178"></a><span class="lineno"> 1178</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l01179" name="l01179"></a><span class="lineno"> 1179</span><span class="comment">   * @param prefer_no_move</span></div>
-<div class="line"><a id="l01180" name="l01180"></a><span class="lineno"> 1180</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l01181" name="l01181"></a><span class="lineno"> 1181</span><span class="comment">   * @param raw_packet</span></div>
-<div class="line"><a id="l01182" name="l01182"></a><span class="lineno"> 1182</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l01183" name="l01183"></a><span class="lineno"> 1183</span><span class="comment">   * @return See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l01184" name="l01184"></a><span class="lineno"> 1184</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01185" name="l01185"></a><span class="lineno"> 1185</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet.html#a5af95ad4de8253b613d55a99d41cb430">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
-<div class="line"><a id="l01186" name="l01186"></a><span class="lineno"> 1186</span>                                                           <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) <span class="keyword">override</span>;</div>
-<div class="line"><a id="l01187" name="l01187"></a><span class="lineno"> 1187</span>}; <span class="comment">// struct Ack_packet</span></div>
-<div class="line"><a id="l01188" name="l01188"></a><span class="lineno"> 1188</span><span class="comment"></span> </div>
-<div class="line"><a id="l01189" name="l01189"></a><span class="lineno"> 1189</span><span class="comment">/**</span></div>
-<div class="line"><a id="l01190" name="l01190"></a><span class="lineno"> 1190</span><span class="comment"> * Specifies the *incoming* (post-deserialization) acknowledgment of a single received Data_packet.</span></div>
-<div class="line"><a id="l01191" name="l01191"></a><span class="lineno"> 1191</span><span class="comment"> * It is not copyable, and moving them around by smart Individual_ack::Ptr is encouraged.</span></div>
-<div class="line"><a id="l01192" name="l01192"></a><span class="lineno"> 1192</span><span class="comment"> * Construct this by direct member initialization.</span></div>
-<div class="line"><a id="l01193" name="l01193"></a><span class="lineno"> 1193</span><span class="comment"> */</span></div>
-<div class="line"><a id="l01194" name="l01194"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html"> 1194</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">Ack_packet::Individual_ack</a></div>
-<div class="line"><a id="l01195" name="l01195"></a><span class="lineno"> 1195</span>  <span class="comment">// Cannot use boost::noncopyable or Shared_ptr_alias_holder, because that turns off direct initialization.</span></div>
-<div class="line"><a id="l01196" name="l01196"></a><span class="lineno"> 1196</span>{</div>
-<div class="line"><a id="l01197" name="l01197"></a><span class="lineno"> 1197</span>  <span class="comment">// Types.</span></div>
-<div class="line"><a id="l01198" name="l01198"></a><span class="lineno"> 1198</span><span class="comment"></span> </div>
-<div class="line"><a id="l01199" name="l01199"></a><span class="lineno"> 1199</span><span class="comment">  /// Short-hand for ref-counted pointer to mutable objects of this class.</span></div>
-<div class="line"><a id="l01200" name="l01200"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#abbd41e30089125f67667b39f5756c275"> 1200</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#abbd41e30089125f67667b39f5756c275">Ptr</a> = boost::shared_ptr&lt;Individual_ack&gt;;</div>
-<div class="line"><a id="l01201" name="l01201"></a><span class="lineno"> 1201</span><span class="comment"></span> </div>
-<div class="line"><a id="l01202" name="l01202"></a><span class="lineno"> 1202</span><span class="comment">  /// Short-hand for ref-counted pointer to immutable objects of this class.</span></div>
-<div class="line"><a id="l01203" name="l01203"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c"> 1203</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">Const_ptr</a> = boost::shared_ptr&lt;const Individual_ack&gt;;</div>
-<div class="line"><a id="l01204" name="l01204"></a><span class="lineno"> 1204</span> </div>
-<div class="line"><a id="l01205" name="l01205"></a><span class="lineno"> 1205</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l01206" name="l01206"></a><span class="lineno"> 1206</span><span class="comment"></span> </div>
-<div class="line"><a id="l01207" name="l01207"></a><span class="lineno"> 1207</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01208" name="l01208"></a><span class="lineno"> 1208</span><span class="comment">   * Sequence number of first datum in packet that we acknowledge.</span></div>
-<div class="line"><a id="l01209" name="l01209"></a><span class="lineno"> 1209</span><span class="comment">   * This is non-`const` for a technical reason: one must be able to use Sequence_number::set_metadata().</span></div>
-<div class="line"><a id="l01210" name="l01210"></a><span class="lineno"> 1210</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01211" name="l01211"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1d027f817b86cc377d76bc38434229a4"> 1211</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1d027f817b86cc377d76bc38434229a4">m_seq_num</a>;</div>
-<div class="line"><a id="l01212" name="l01212"></a><span class="lineno"> 1212</span><span class="comment"></span> </div>
-<div class="line"><a id="l01213" name="l01213"></a><span class="lineno"> 1213</span><span class="comment">  /// The delay between when we received the acknowledged packet and when decided to send this ack.</span></div>
-<div class="line"><a id="l01214" name="l01214"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a6027b17d0ef0aa619c4dedb42d74e1a6"> 1214</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a6027b17d0ef0aa619c4dedb42d74e1a6">m_delay</a>;</div>
-<div class="line"><a id="l01215" name="l01215"></a><span class="lineno"> 1215</span><span class="comment"></span> </div>
-<div class="line"><a id="l01216" name="l01216"></a><span class="lineno"> 1216</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01217" name="l01217"></a><span class="lineno"> 1217</span><span class="comment">   * Retransmit counter of the acknowledged Data_packet.  Identifies which attempt we are acknowledging</span></div>
-<div class="line"><a id="l01218" name="l01218"></a><span class="lineno"> 1218</span><span class="comment">   * (0 = initial, 1 = first retransmit, 2 = second retransmit, ...).  Literally this equals the acked</span></div>
-<div class="line"><a id="l01219" name="l01219"></a><span class="lineno"> 1219</span><span class="comment">   * Data_packet::m_rexmit_id.  Always 0 if retransmission is disabled for the given socket.</span></div>
-<div class="line"><a id="l01220" name="l01220"></a><span class="lineno"> 1220</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01221" name="l01221"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae17b658ee88e60bdb6606af607b00de2"> 1221</a></span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae17b658ee88e60bdb6606af607b00de2">m_rexmit_id</a>;</div>
-<div class="line"><a id="l01222" name="l01222"></a><span class="lineno"> 1222</span> </div>
-<div class="line"><a id="l01223" name="l01223"></a><span class="lineno"> 1223</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l01224" name="l01224"></a><span class="lineno"> 1224</span><span class="comment"></span> </div>
-<div class="line"><a id="l01225" name="l01225"></a><span class="lineno"> 1225</span><span class="comment">  /// Force direct member initialization even if no member is `const`.</span></div>
-<div class="line"><a id="l01226" name="l01226"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1cfc30a36e8b572f3cedaf045b05f448"> 1226</a></span><span class="comment"></span>  <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1cfc30a36e8b572f3cedaf045b05f448">Individual_ack</a>() = <span class="keyword">delete</span>;</div>
-<div class="line"><a id="l01227" name="l01227"></a><span class="lineno"> 1227</span><span class="comment"></span> </div>
-<div class="line"><a id="l01228" name="l01228"></a><span class="lineno"> 1228</span><span class="comment">  /// Forbid copy construction.</span></div>
-<div class="line"><a id="l01229" name="l01229"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae557559e4c611fafc3d43a19fb161316"> 1229</a></span><span class="comment"></span>  <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae557559e4c611fafc3d43a19fb161316">Individual_ack</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">Individual_ack</a>&amp;) = <span class="keyword">delete</span>;</div>
-<div class="line"><a id="l01230" name="l01230"></a><span class="lineno"> 1230</span> </div>
-<div class="line"><a id="l01231" name="l01231"></a><span class="lineno"> 1231</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l01232" name="l01232"></a><span class="lineno"> 1232</span><span class="comment"></span> </div>
-<div class="line"><a id="l01233" name="l01233"></a><span class="lineno"> 1233</span><span class="comment">  /// Forbid copy assignment.</span></div>
-<div class="line"><a id="l01234" name="l01234"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a3fc4ecbc56e28b299a4bd70325d313a0"> 1234</a></span><span class="comment"></span>  <span class="keywordtype">void</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a3fc4ecbc56e28b299a4bd70325d313a0">operator=</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">Individual_ack</a>&amp;) = <span class="keyword">delete</span>;</div>
-<div class="line"><a id="l01235" name="l01235"></a><span class="lineno"> 1235</span>};</div>
-<div class="line"><a id="l01236" name="l01236"></a><span class="lineno"> 1236</span> </div>
-<div class="line"><a id="l01237" name="l01237"></a><span class="lineno"> 1237</span><span class="preprocessor">#pragma pack(push, 1)</span></div>
-<div class="line"><a id="l01238" name="l01238"></a><span class="lineno"> 1238</span><span class="comment"></span> </div>
-<div class="line"><a id="l01239" name="l01239"></a><span class="lineno"> 1239</span><span class="comment">/**</span></div>
-<div class="line"><a id="l01240" name="l01240"></a><span class="lineno"> 1240</span><span class="comment"> * Specifies the *outgoing* (pre-serialization) acknowledgment of a single received Data_packet, when</span></div>
-<div class="line"><a id="l01241" name="l01241"></a><span class="lineno"> 1241</span><span class="comment"> * retranmission is disabled on the socket.  Assuming network byte order equals native byte order,</span></div>
-<div class="line"><a id="l01242" name="l01242"></a><span class="lineno"> 1242</span><span class="comment"> * and given that tight `struct` field packing is enabled throughout this code, one can arrange a tight</span></div>
-<div class="line"><a id="l01243" name="l01243"></a><span class="lineno"> 1243</span><span class="comment"> * array of these `struct`s and transmit that entire array over the network with no need for scatter/gather</span></div>
-<div class="line"><a id="l01244" name="l01244"></a><span class="lineno"> 1244</span><span class="comment"> * or any additional transformation of data post-construction and pushing onto aforementioned array.</span></div>
-<div class="line"><a id="l01245" name="l01245"></a><span class="lineno"> 1245</span><span class="comment"> * These are copy-constructible, for pushing onto containers and such, but not assignable to avoid unnecessary</span></div>
-<div class="line"><a id="l01246" name="l01246"></a><span class="lineno"> 1246</span><span class="comment"> * copying.  Update: A later version of clang does not like</span></div>
-<div class="line"><a id="l01247" name="l01247"></a><span class="lineno"> 1247</span><span class="comment"> * this technique and warns about it; to avoid any such trouble just forget the non-assignability stuff;</span></div>
-<div class="line"><a id="l01248" name="l01248"></a><span class="lineno"> 1248</span><span class="comment"> * it&#39;s internal code; we should be fine.</span></div>
-<div class="line"><a id="l01249" name="l01249"></a><span class="lineno"> 1249</span><span class="comment"> *</span></div>
-<div class="line"><a id="l01250" name="l01250"></a><span class="lineno"> 1250</span><span class="comment"> * @see Historical note in Ack_packet::serialize_to_raw_data() explains why this and</span></div>
-<div class="line"><a id="l01251" name="l01251"></a><span class="lineno"> 1251</span><span class="comment"> *      Individual_ack_rexmit_on both exist, instead of simply using Individual_ack in both directions.</span></div>
-<div class="line"><a id="l01252" name="l01252"></a><span class="lineno"> 1252</span><span class="comment"> */</span></div>
-<div class="line"><a id="l01253" name="l01253"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html"> 1253</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html">Ack_packet::Individual_ack_rexmit_off</a></div>
-<div class="line"><a id="l01254" name="l01254"></a><span class="lineno"> 1254</span>{</div>
-<div class="line"><a id="l01255" name="l01255"></a><span class="lineno"> 1255</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="preprocessor">#include &lt;type_traits&gt;</span></div>
+<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span> </div>
+<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div>
+<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span>{</div>
+<div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span><span class="comment"></span> </div>
+<div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level packet structure and serves as</span></div>
+<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="comment"> * the super-type for all specific packet types, represented by derived `struct`s like Ack_packet, Rst_packet,</span></div>
+<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="comment"> * etc.</span></div>
+<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="comment"> * This `struct` and its sub-`struct` hierarchy are not too complex but nevertheless are somewhat unorthodox,</span></div>
+<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span><span class="comment"> * combining a few different paradigms.  So it&#39;s worth explaining these paradigms.</span></div>
+<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="comment"> * ### Paradigm: Data store ###</span></div>
+<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="comment"> * This is a `struct` holding the conceptual contents of a packet.  Low_lvl_packet stores common values like</span></div>
+<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span><span class="comment"> * #m_opt_rexmit_on, #m_src_port, and a few more.  Each sub-`struct` stores further values specific to each</span></div>
+<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="comment"> * packet type; for example, as of this writing, Data_packet::m_data contains the data payload of a DATA</span></div>
+<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="comment"> * packet; this would not apply, for example, to another sub-`struct` like Rst_packet, because an RST stores</span></div>
+<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="comment"> * no binary blob like that.</span></div>
+<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="comment"> * Since it&#39;s a simple data store, the applicable data members (in this `struct` and the sub-types) are</span></div>
+<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="comment"> * both public AND non-`const`.  They can be read and written at will, thus changing or reading the</span></div>
+<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="comment"> * logical contents of the packet.</span></div>
+<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="comment"> * ### Paradigm: Polymorphic type ###</span></div>
+<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="comment"> * While a simple data store, it also represents a hierarchy of possible packet types, and indeed a number</span></div>
+<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="comment"> * of important polymorphic operations are included.  Some are private/internal, and some are public.</span></div>
+<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="comment"> * A public method may not appear polymorphic by its signature, but in that case usually its implementation</span></div>
+<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="comment"> * uses non-public `virtual` methods to accomplish its tasks.  Specifically, the key APIs are:</span></div>
+<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span><span class="comment"> *   - `create_uninit_packet&lt;T&gt;()`: This creates an uninitialized sub-object of Low_lvl_packet, of actual</span></div>
+<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span><span class="comment"> *     type `T`, where `T` derives from Low_lvl_packet.  This returns a `shared_ptr&lt;T&gt;`, and any actual</span></div>
+<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span><span class="comment"> *     constructor used to implement this factory method is non-public, so the only way for a user to</span></div>
+<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span><span class="comment"> *     create a Low_lvl_packet is to get at a ref-counted pointer to it -- not a raw, unprotected pointer.  If storing</span></div>
+<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span><span class="comment"> *     only `shared_ptr&lt;T&gt;` or `Ptr` values, deletion is not something to worry about, as it will happen</span></div>
+<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span><span class="comment"> *     automatically.</span></div>
+<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span><span class="comment"> *     - Same with the other factory methods described just below.  Direct access to `Low_lvl_packet*` or</span></div>
+<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span><span class="comment"> *       `T*`, where `T` derives from Low_lvl_packet, is not allowed (but this is not enforced at compile time</span></div>
+<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span><span class="comment"> *       and, at best, via `assert()`s at runtime).</span></div>
+<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="comment"> *   - create_from_raw_data_packet(): Given a raw serialized packet, this factory method constructs</span></div>
+<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span><span class="comment"> *     a Low_lvl_packet of the appropriate polymorphic sub-type, filling it at all levels with the data</span></div>
+<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="comment"> *     deserialized for the input binary blob.  Internally, it uses some private, `virtual` action to get this</span></div>
+<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span><span class="comment"> *     to work.  At any rate, this method is used to crete a logical representation of a packet off the wire.</span></div>
+<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span><span class="comment"> *   - serialize_to_raw_data(): The opposite operation: convert existing object to raw data sendable over the wire.</span></div>
+<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="comment"> *     This uses a high-performance scatter-gather paradigm of producing a sequence of pointers and lengths to</span></div>
+<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="comment"> *     already existing data areas, avoiding copying.  This thing is `virtual` and applies to any Low_lvl_packet</span></div>
+<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="comment"> *     sub-object.</span></div>
+<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span><span class="comment"> * (Reminder: As with all polymorphism and `shared_ptr`, you may need `static_pointer_cast&lt;&gt;` to up- and down-cast</span></div>
+<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="comment"> * between Low_lvl_packet and subclasses.  Also `Low_lvl_packet::ptr_cast()` up-casts even syntactically-sugarier-ly.)</span></div>
+<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="comment"> * The two basic flows are:</span></div>
+<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="comment"> *   - Call `create_uninit_packet&lt;T&gt;()` to construct a sub-`struct` of Low_lvl_packet, returned as a ref-counted</span></div>
+<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="comment"> *     pointer to `T`.  Fill out all the fields manually, accessing object via aforemetioned smart pointer.</span></div>
+<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="comment"> *     Call serialize_to_raw_data().  Pass result of latter to a boost.asio network-sending routine</span></div>
+<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span><span class="comment"> *     to send over wire.  Ensure you pass a `Ptr` to the completion handler passed to that routine, so that</span></div>
+<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="comment"> *     the Low_lvl_packet survives while being sent.  The handler can let the `Ptr` go out of scope, likely</span></div>
+<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="comment"> *     `delete`ing the Low_lvl_packet.</span></div>
+<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment"> *   - Receive raw packet over wire.  Call create_from_raw_data_packet() to yield a Low_lvl_packet::Ptr pointing</span></div>
+<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment"> *     to new Low_lvl_packet sub-object with all fields filled out.  Read the fields as needed to process the</span></div>
+<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment"> *     packet; store the `Ptr` if necessary; eventually removing it from all data structures will drop ref-count</span></div>
+<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="comment"> *     to zero, and it will be auto-`delete`d.</span></div>
+<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="comment"> * ### Other utlities ###</span></div>
+<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span><span class="comment"> * A number of (typically polymorphic) facilities exist, mainly to log these objects to `ostream`s, including</span></div>
+<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="comment"> * when logging with FLOW_LOG_TRACE() and FLOW_LOG_DATA().</span></div>
+<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="comment"> *   - #m_verbose_ostream_manip and #m_concise_ostream_manip are `const` data members that can be output</span></div>
+<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="comment"> *     via the usual `&lt;&lt;` operator to `ostream`s in order to output verbose and concise descriptions</span></div>
+<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment"> *     of any Low_lvl_packet (of any sub-`struct` type, polymorphically).</span></div>
+<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="comment"> *   - #m_type_ostream_manip can be similarly used to output just the packet type of any given</span></div>
+<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment"> *     Low_lvl_packet (producing strings like `&quot;ACK&quot;` or `&quot;RST&quot;`).</span></div>
+<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span><span class="comment"> * The implementation of these is typically some polymorphic `virtual` magic, but the use is straightforward using</span></div>
+<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="comment"> * these `ostream` manipulator data members.</span></div>
+<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="comment"> * Implementation notes</span></div>
+<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="comment"> * --------------------</span></div>
+<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment"> * ### History of approaches ###</span></div>
+<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="comment"> * Originally the implementation used the boost.serialization library for packet serialization, but</span></div>
+<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="comment"> * it turned out to consume way too much CPU time which consequently limited the maximum</span></div>
+<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment"> * throughput at high speeds.  The next implementation used the traditional approach based on</span></div>
+<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment"> * &quot;packed&quot; structures (structures without any padding), in one big `struct Low_lvl_packet`.</span></div>
+<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment"> * However, I deemed the latter setup too C-like (yet simultaneously</span></div>
+<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment"> * not C-like enough, in that no unions were used, hence RAM was wasted despite the C-like approach).</span></div>
+<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment"> * Ultimately, the current version of the implementation came about, with its polymorphic `struct` hierarchy</span></div>
+<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment"> * and abstract Low_lvl_packet `struct` (which, in the previous iteration, simply contained everything</span></div>
+<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment"> * about every type, complete with an `enum Type` instead of using C++&#39;s built-in `typeid`, as the current</span></div>
+<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment"> * version uses).</span></div>
+<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment"> * While the above evolution was more about coding style philosophy (from a single type and a type selector</span></div>
+<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span><span class="comment"> * `enum` to a polymorphic hierarchy and `typeid`), the other evolution concerned the way serialization</span></div>
+<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment"> * (for sending over the write) worked.  At first, as mentioned, there were the logical values (which were</span></div>
+<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment"> * public and non-`const`), and there were private packed `struct`s into which the logical values were</span></div>
+<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="comment"> * placed (with transformation for endianness and other things) at serialization time; finally then assembling</span></div>
+<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="comment"> * a newly allocated single binary buffer, those packed `struct`s copied into it.  Not bad -- rather verbose</span></div>
+<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment"> * having all those types defined, but not bad -- but it did involve a new buffer and linear-time copying into</span></div>
+<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment"> * that buffer.  This seemed like a shame.</span></div>
+<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment"> * This led to the final improvement, which was to turn the serialization function into one that generates</span></div>
+<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment"> * a `boost::asio::const_buffer_sequence`, basically a sequence of pointers and associated lengths of areas</span></div>
+<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment"> * already present in memory.  In most cases (with a couple small exceptions), the stored public data members</span></div>
+<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment"> * (e.g., #m_src_port and Data_packet::m_data) could simply have their addresses and lengths taken and placed</span></div>
+<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="comment"> * into the `const_buffer_sequence` -- no buffer copying involved.  This should achieve a nice performance</span></div>
+<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="comment"> * improvement.  The removal of things like `struct Common_header` and `struct Ack_header` is a good bonus</span></div>
+<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment"> * coding-wise, too.</span></div>
+<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="comment"> * (There is a caveat there.  While no issue for the true performance culprits, namely Data_packet::m_data,</span></div>
+<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment"> * the various multi-byte integer values like #m_src_port technically have to undergo endianness conversion</span></div>
+<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment"> * during serialization.  So technically simply taking an address and size is not enough; the value needs</span></div>
+<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="comment"> * to be flipped *potentially*.  In reality, though, all relevant architectures are such that we chose</span></div>
+<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span><span class="comment"> * identical network byte order as memory byte order, making no flipping necessary in practice.  Of course,</span></div>
+<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="comment"> * if we spread to an architecture where this is not true, everything will explode.  However, a compile-time</span></div>
+<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="comment"> * assertion would warn us of this, and a nearby comment will instruct on how to deal with the problem, in the</span></div>
+<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="comment"> * unlikely case it were to appear.  [Little-endian is rather universal these days.])</span></div>
+<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span><span class="comment"> * ### Packed structures, stored integers, and alignment ###</span></div>
+<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="comment"> * When 2 or more contiguous data members are used in serializing (serialize_to_raw_data() or overridden</span></div>
+<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span><span class="comment"> * version), they are packed together via `&quot;#pragma pack&quot;`.  (Note that this affect entire `struct`s at a time</span></div>
+<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span><span class="comment"> * only; hence we need to use some anonymously-typed grouping `struct`s named `m_packed`.)</span></div>
+<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span><span class="comment"> * Numeric values are stored as unsigned integers, which is the most portable choice for serializing.</span></div>
+<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span><span class="comment"> * Booleans are serialized as bytes for compactness.</span></div>
+<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment"> * Some effort is made to keep fields aligned along word edges when serializing.  There is not too much</span></div>
+<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="comment"> * of that as of this writing, but we should remain vigilant as packet formats become more complex over time.</span></div>
+<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="comment"> * @todo With C++11, some lines of code could be eliminated by using `using` for Low_lvl_packet sub-types</span></div>
+<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span><span class="comment"> * to inherit the constructor(s) of Low_lvl_packet.  (For some of the sub-types an explicit constructor</span></div>
+<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="comment"> * would still be necessary, but it would just shadow the inherited one, which is fine and still saves lines</span></div>
+<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span><span class="comment"> * in the other sub-types.)  However, for now I&#39;ve left it as-is, partially to be friendly to the Doxygen</span></div>
+<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment"> * documentation generator, and partially to make the interface easy to read.  Still, it may be better the other</span></div>
+<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="comment"> * way.</span></div>
+<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">  165</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a> :</div>
+<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1util_1_1Null__interface.html">util::Null_interface</a>,</div>
+<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>  <span class="comment">// Endow us with shared_ptr&lt;&gt;s ::Ptr and ::Const_ptr (syntactic sugar).</span></div>
+<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html">util::Shared_ptr_alias_holder</a>&lt;boost::shared_ptr&lt;Low_lvl_packet&gt;&gt;,</div>
+<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1log_1_1Log__context.html">log::Log_context</a>,</div>
+<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>  <span class="keyword">private</span> boost::noncopyable</div>
+<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>{</div>
+<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>  <span class="comment">// Types.</span></div>
+<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span><span class="comment"></span> </div>
+<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span><span class="comment">   * Short-hand for boost.asio immutable buffer, which essentially is a pointer to and length of a memory area.</span></div>
+<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span><span class="comment">   * @todo Consider moving alias Low_lvl_packet::Const_buffer to `util` namespace or even outside it, as it is</span></div>
+<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span><span class="comment">   * used commonly (or `boost::asio::const_buffer` is used where `Const_buffer` could be used for readability).</span></div>
+<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">  180</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a> = boost::asio::const_buffer;</div>
+<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span><span class="comment"></span> </div>
+<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span><span class="comment">   * Short-hand for sequence of immutable buffers; i.e., a sequence of 1 or more scattered areas in memory.</span></div>
+<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span><span class="comment">   * This is a model of the `ConstBufferSequence` model in boost.asio, which means a `const` reference to this</span></div>
+<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span><span class="comment">   * can be passed to boost.asio scatter-gathering send functions such as `Udp_socket::async_send_to()`;</span></div>
+<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span><span class="comment">   * the scattered buffers represented by an instance of this type will be, at high performance, gathered</span></div>
+<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span><span class="comment">   * into a single UDP datagram and sent over the wire if possible.</span></div>
+<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">  189</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a> = std::vector&lt;Const_buffer&gt;;</div>
+<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span><span class="comment"></span> </div>
+<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="comment">  /// Type used for `m_security_token` member of a couple different packet types.</span></div>
+<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a872044469cfa05a3abf3f9ab1c7cf03b">  192</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a872044469cfa05a3abf3f9ab1c7cf03b">security_token_t</a> = uint64_t;</div>
+<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment"></span> </div>
+<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span><span class="comment">   * Type used to store the retransmission count in DATA and ACK packets.</span></div>
+<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment">   * Why 8 bits?  This handles up 255 retransmissions, which is long after we&#39;d kill the connection</span></div>
+<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span><span class="comment">   * anyway.</span></div>
+<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">  200</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">rexmit_id_t</a> = <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a>;</div>
+<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="comment"></span> </div>
+<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span><span class="comment">  /// Type used to store the size of `m_rcv_wnd` member in a couple of different packet types.</span></div>
+<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">  203</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">rcv_wnd_t</a> = uint32_t;</div>
+<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span> </div>
+<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>  <span class="comment">/* Data: These are actual Common Header payload.</span></div>
+<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span><span class="comment">   * These are common to all packet types, since we are super-`struct` to all actual packet types.</span></div>
+<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span><span class="comment">   * Note the implicit data field typeid(*this) which identifies the actual type of this packet.</span></div>
+<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span><span class="comment">   * (C++ subtlety: typeid(this) will just yield typeid(Low_lvl_packet), which isn&#39;t that useful;</span></div>
+<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span><span class="comment">   * but typeid(*this) will actually get you typeid(Data_packet), typeid(Ack_packet), etc. */</span></div>
+<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span><span class="comment"></span> </div>
+<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span><span class="comment">   * Option indicating whether this connection is using retransmission or not.  This value must not</span></div>
+<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span><span class="comment">   * change over the course of a connection and is provided in each packet for simpler</span></div>
+<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span><span class="comment">   * deserialization (so that the latter can proceed completely without having to check the</span></div>
+<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span><span class="comment">   * connection properties).</span></div>
+<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span><span class="comment">   * For a given connection handshake, the SYN receiver should either disconnect/RST or respond with</span></div>
+<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span><span class="comment">   * SYN_ACK.  If it responds with SYN_ACK, it indicates agreement to abide by this option for the</span></div>
+<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span><span class="comment">   * rest of the connection.</span></div>
+<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#acc2a10d19e8e54c88518ad2e02a08b68">  223</a></span>  <span class="keywordtype">bool</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#acc2a10d19e8e54c88518ad2e02a08b68">m_opt_rexmit_on</a>;</div>
+<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span> </div>
+<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span><span class="preprocessor">#pragma pack(push, 1)</span><span class="comment"></span></div>
+<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span><span class="comment">  /// Packed group affected by `#pragma pack`.</span></div>
+<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span><span class="comment"></span>  <span class="keyword">struct</span></div>
+<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>  {</div>
+<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>    <span class="comment">// Data.</span></div>
+<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span><span class="comment"></span> </div>
+<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span><span class="comment">    /// Flow-protocol port # of socket in sending Node.</span></div>
+<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ae5bd1ed0883b4827d8a81d70c10fd271">  232</a></span><span class="comment"></span>    <a class="code hl_typedef" href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow_port_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ae5bd1ed0883b4827d8a81d70c10fd271">m_src_port</a>;<span class="comment"></span></div>
+<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span><span class="comment">    /// Flow-protocol port # of socket in receiving Node.</span></div>
+<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a786030d997a7602733a6a4422cb34274">  234</a></span><span class="comment"></span>    <a class="code hl_typedef" href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow_port_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a786030d997a7602733a6a4422cb34274">m_dst_port</a>;</div>
+<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a3e7152648c0098491512da590b47b464">  235</a></span>  } <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a3e7152648c0098491512da590b47b464">m_packed</a>;</div>
+<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span><span class="preprocessor">#pragma pack(pop)</span></div>
+<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span> </div>
+<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span>  <span class="comment">// Type checks.</span></div>
+<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;flow_port_t&gt;::is_integer</div>
+<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>                  &amp;&amp; (!std::numeric_limits&lt;flow_port_t&gt;::is_signed),</div>
+<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span>                <span class="stringliteral">&quot;Ports are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span> </div>
+<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span>  <span class="comment">// Data: These are peripheral (not actual packet payload).</span></div>
+<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="comment"></span> </div>
+<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span><span class="comment">  /// `ostream` manipulator (argument to `ostream &lt;&lt;`) that will output packet&#39;s type (&quot;ACK&quot;, &quot;RST&quot;, etc.).</span></div>
+<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a7f4fd9ce69e293477e96fbad0a2298ed">  246</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;std::ostream&amp; (std::ostream&amp;)&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a7f4fd9ce69e293477e96fbad0a2298ed">m_type_ostream_manip</a>;</div>
+<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span><span class="comment"></span> </div>
+<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span><span class="comment">  /// `ostream` manipulator (argument to `ostream &lt;&lt;`) that will output packet info suitable for DATA log level.</span></div>
+<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ae3e64b049838a690384a899209ffca7b">  249</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;std::ostream&amp; (std::ostream&amp;)&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ae3e64b049838a690384a899209ffca7b">m_verbose_ostream_manip</a>;</div>
+<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span><span class="comment"></span> </div>
+<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span><span class="comment">  /// `ostream` manipulator (argument to `ostream &lt;&lt;`) that will output packet info suitable for TRACE log level.</span></div>
+<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a89bbdc4968a82877de3d7bcba3597c2c">  252</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;std::ostream&amp; (std::ostream&amp;)&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a89bbdc4968a82877de3d7bcba3597c2c">m_concise_ostream_manip</a>;</div>
+<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span> </div>
+<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span><span class="comment"></span> </div>
+<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><span class="comment">   * Constructs packet with uninitialized (essentially random) values, of the Low_lvl_packet sub-type specified</span></div>
+<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span><span class="comment">   * as the template parameter (Ack_packet, Rst_packet, etc.).  Since any constructor is not public, this is</span></div>
+<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="comment">   * the only way to instantiate a blank Low_lvl_packet sub-object.</span></div>
+<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span><span class="comment">   * Compiler template parameter inference should make the following work, so the template parameter can be omitted.:</span></div>
+<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span><span class="comment">   *   ~~~</span></div>
+<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span><span class="comment">   *   shared_ptr&lt;Ack_packet&gt; = create_uninit_packet(get_logger());</span></div>
+<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span><span class="comment">   *   // ^-- Low_lvl_packet_sub was inferred to be Ack_packet based on the left hand side of the assignment.</span></div>
+<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span><span class="comment">   *   ~~~</span></div>
+<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span><span class="comment">   * @tparam Low_lvl_packet_sub</span></div>
+<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span><span class="comment">   *         Any type deriving from Low_lvl_packet.</span></div>
+<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span><span class="comment">   * @param logger_ptr</span></div>
+<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span><span class="comment">   *        Logger to use subsequently in the new object.</span></div>
+<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span><span class="comment">   * @return Ref-counted pointer to newly created object of the specified type.</span></div>
+<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span><span class="comment">   *         If you need an up-cast pointer, use create_uninit_packet_base().</span></div>
+<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Low_lvl_packet_sub&gt;</div>
+<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span>  <span class="keyword">static</span> boost::shared_ptr&lt;Low_lvl_packet_sub&gt; <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a09f0f187521ec2275885d68b7f6e734a">create_uninit_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
+<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span><span class="comment"></span> </div>
+<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span><span class="comment">   * A simple convenience method that casts the result of create_uninit_packet() from `shared_ptr&lt;T&gt;`, where `T` is a</span></div>
+<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span><span class="comment">   * sub-type of Low_lvl_packet, to `shared_ptr&lt;Low_lvl_packet&gt;` a/k/a Ptr.</span></div>
+<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span><span class="comment">   * @param logger_ptr</span></div>
+<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span><span class="comment">   *        See create_uninit_packet().</span></div>
+<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span><span class="comment">   * @return See create_uninit_packet() (but cast to a type compatible with the polymorphic base type).</span></div>
+<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Low_lvl_packet_sub&gt;</div>
+<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span>  <span class="keyword">static</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Ptr</a> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a64981689c6d162131889bd90ef003279">create_uninit_packet_base</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
+<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span><span class="comment"></span> </div>
+<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span><span class="comment">   * Constructs packet on the heap with values determined by the given raw binary data as presumably</span></div>
+<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span><span class="comment">   * received from the wire and originally serialized by a compatible serializing Node.  The returned</span></div>
+<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span><span class="comment">   * value is a reference-counted pointer with a reference count of 1 (i.e., no other references to</span></div>
+<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span><span class="comment">   * underlying object have been saved anywhere by the time method returns).</span></div>
+<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span><span class="comment">   * It is the opposite of serialize_to_raw_data() but not symmetrically efficient; where the latter</span></div>
+<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span><span class="comment">   * produces a sequence of pointers/lengths of already present areas of memory (no copying), the present method</span></div>
+<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span><span class="comment">   * copies the raw data into a new structure and is thus less efficient.</span></div>
+<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span><span class="comment">   * Suppose `ptr` is returned.  Then `*ptr` is of polymorphic type `Low_lvl_packet*` but actually is</span></div>
+<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span><span class="comment">   * of some specific sub-type (like `Ack_packet*`).  `typeid(*ptr)` can be used to determine the exact type.</span></div>
+<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span><span class="comment">   * In particular one can write things like: `bool is_ack = typeid(*ptr) == typeid(Ack_packet)`.</span></div>
+<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span><span class="comment">   * Of course, in many cases one may call one of a number of virtual methods of Low_lvl_packet to get</span></div>
+<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span><span class="comment">   * type-specific polymorphic behavior.</span></div>
+<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span><span class="comment">   * @see m_type_ostream_manip() for easy way to output human-readable version of `typeid(*ptr).name()`, where</span></div>
+<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span><span class="comment">   *      `ptr` is the value returned.</span></div>
+<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span><span class="comment">   * @param raw_packet</span></div>
+<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span><span class="comment">   *        Pointer to entire packet raw buffer as received over the wire.</span></div>
+<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span><span class="comment">   *        Upon return, the state of `*raw_packet` is not known; and caller retains</span></div>
+<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span><span class="comment">   *        ownership of it (e.g., can read another datagram into it if desired).  As of this writing it will either</span></div>
+<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span><span class="comment">   *        remain unchanged or be emptied (via a move elsewhere) -- but ideally code without relying on either specific</span></div>
+<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span><span class="comment">   *        outcome.</span></div>
+<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span><span class="comment">   * @param prefer_no_move</span></div>
+<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span><span class="comment">   *        If `true`, the method should (if at all reasonable) not alter `raw_packet-&gt;capacity()` (in particular</span></div>
+<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span><span class="comment">   *        it should not use move semantics to send its contents to another data structure); otherwise</span></div>
+<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span><span class="comment">   *        it should be free to do so (i.e., if it considers doing so beneficial for performance reasons).</span></div>
+<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span><span class="comment">   * @param logger_ptr</span></div>
+<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span><span class="comment">   *        Will be used to log within this method as well as be saved as the</span></div>
+<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span><span class="comment">   *        `Logger*` in the new Low_lvl_packet created and returned (if any).</span></div>
+<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span><span class="comment">   * @return A null pointer on failure; otherwise pointer to an object of some sub-type of Low_lvl_packet.</span></div>
+<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span>  <span class="keyword">static</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Ptr</a> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a186d7dae0c4b4402aed22a25d595ed30">create_from_raw_data_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet, <span class="keywordtype">bool</span> prefer_no_move);</div>
+<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span><span class="comment"></span> </div>
+<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span><span class="comment">   * Serializes the current logical packet data from `*this` into the given `Const_buffer_sequence`,</span></div>
+<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span><span class="comment">   * which is a sequence of pointers and lengths of existing scattered areas in memory, presumably</span></div>
+<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span><span class="comment">   * for transmission over the wire to a compatible serializing Node.</span></div>
+<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span><span class="comment">   * It is the opposite of create_from_raw_data_packet() but not symmetrically efficient; where the latter</span></div>
+<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span><span class="comment">   * copies the raw data into a new structure, the present method produces a sequence of pointers/lengths</span></div>
+<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span><span class="comment">   * of already present areas of memory (no copying) and is thus more efficient.</span></div>
+<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span><span class="comment">   * The input `*raw_bufs` is appended to and is *not* cleared by this method.  Thus one may use this</span></div>
+<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span><span class="comment">   * method to produce a larger buffer sequence of which the serialization of `*this` is only a part</span></div>
+<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span><span class="comment">   * (possibly in the middle somewhere).</span></div>
+<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span><span class="comment">   * Behavior is undefined if one modifies `*this` after calling the present method.  It is safer to</span></div>
+<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span><span class="comment">   * run this on a `const Low_lvl_packet` rather than a mutable Low_lvl_packet.</span></div>
+<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span><span class="comment">   * @warning This efficiency comes with an important caveat: the generated additions to `*raw_bufs` will</span></div>
+<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span><span class="comment">   *          remain valid *only* while `*this` exists.  If its destructor runs, the buffers added here</span></div>
+<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span><span class="comment">   *          will become invalid, and accessing them will result in undefined behavior.</span></div>
+<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span><span class="comment">   * @param raw_bufs</span></div>
+<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span><span class="comment">   *        Pointer to the sequence of `Const_buffer`s into which we will append pointers/lengths</span></div>
+<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span><span class="comment">   *        of serialized data.</span></div>
+<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span><span class="comment">   * @return Size in bytes of the data references to which have been appended to `*raw_bufs`;</span></div>
+<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span><span class="comment">   *         Already present data are not included.</span></div>
+<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76">  350</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const</span> = 0;</div>
+<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span><span class="comment"></span> </div>
+<div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span><span class="comment">   * Identical to serialize_to_raw_data() but adds log-level-appropriate logging after the operation.</span></div>
+<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span><span class="comment">   * @param raw_bufs</span></div>
+<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span><span class="comment">   *        See serialize_to_raw_data().</span></div>
+<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span><span class="comment">   * @return See serialize_to_raw_data().</span></div>
+<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a5856c405aa18f4f54a35515786befea8">serialize_to_raw_data_and_log</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span><span class="comment"></span> </div>
+<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span><span class="comment">   * Returns a brief (a few characters) string description of the given packet type given as</span></div>
+<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span><span class="comment">   * `type_index(typeid(p))`, where `p` is a reference to an instance of a concrete Low_lvl_packet sub-type.</span></div>
+<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span><span class="comment">   * @param type_id</span></div>
+<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span><span class="comment">   *        See above.  If the `p` points to a value of some other type, behavior is undefined.</span></div>
+<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span><span class="comment">   * @return Reference to a string without newlines or other whitespace: &quot;DATA&quot;, &quot;ACK&quot;, &quot;SYN_ACK_ACK&quot;, etc.</span></div>
+<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span>  <span class="keyword">static</span> <span class="keyword">const</span> std::string&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a37c9c6b04502d73defb803c1efabdf63">type_id_to_str</a>(<span class="keyword">const</span> std::type_index&amp; type_id);</div>
+<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span> </div>
+<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span><span class="keyword">protected</span>:</div>
+<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span><span class="comment"></span> </div>
+<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span><span class="comment">   * Constructs packet with uninitialized (essentially random) values.  This is not public, because</span></div>
+<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span><span class="comment">   * a Low_lvl_packet is meaningless without being of some specific sub-type referring to an actual</span></div>
+<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span><span class="comment">   * packet (e.g., Ack_packet, Rst_packet, etc.).  (The presence of pure virtual methods would probably</span></div>
+<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span><span class="comment">   * accomplish this too, but it&#39;s nice to be explicit.)</span></div>
+<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span><span class="comment">   * @param logger_ptr</span></div>
+<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span><span class="comment">   *        Logger to use subsequently.</span></div>
+<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a4a0585d1abae63af891161f1719bc582">Low_lvl_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
+<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span> </div>
+<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span><span class="comment"></span> </div>
+<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00388" name="l00388"></a><span class="lineno">  388</span><span class="comment">   * Helper for serialize_to_raw_data() implementations in sub-types that encodes the header common to all</span></div>
+<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span><span class="comment">   * packet types, starting with the packet type ID leading that header.</span></div>
+<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00391" name="l00391"></a><span class="lineno">  391</span><span class="comment">   * @param raw_bufs</span></div>
+<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span><span class="comment">   *        See serialize_to_raw_data().  Header fields are encoded and appended to this.</span></div>
+<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span><span class="comment">   * @return See serialize_to_raw_data().  The total # of bytes encoded and appended to `*raw_bufs` by the call.</span></div>
+<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ac7b199700e34d3cc17a7653d7bbb134b">serialize_common_header_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span><span class="comment"></span> </div>
+<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span><span class="comment">   * Writes a multi-line representation of `*this` to an output stream.</span></div>
+<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span><span class="comment">   * Unless the sub-type needs to add no information of its own (as of this writing, the case for Rst_packet),</span></div>
+<div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span><span class="comment">   * this implementation (of this virtual method) is only present as a utility for the sub-types.</span></div>
+<div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span><span class="comment">   * The sub-type is recommended to first call this implementation; then add type-specific lines</span></div>
+<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span><span class="comment">   * afterwards, ending with a newline.  Following this recommendation will result in uniform, decent-looking</span></div>
+<div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span><span class="comment">   * overall output.</span></div>
+<div class="line"><a id="l00405" name="l00405"></a><span class="lineno">  405</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span><span class="comment">   * @note This is protected, because it is meant only to be used in the implementation of</span></div>
+<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span><span class="comment">   *       the `ostream` manipulators #m_verbose_ostream_manip and #m_concise_ostream_manip, which</span></div>
+<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span><span class="comment">   *       are public and to be used by users of this type.</span></div>
+<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span><span class="comment">   * @param os</span></div>
+<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span><span class="comment">   *        The output stream to use.  Normally I&#39;d make this a pointer, but this non-constant reference is</span></div>
+<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span><span class="comment">   *        fairly typical in STL and the world in general, for `ostream` in particular.</span></div>
+<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span><span class="comment">   * @param verbose</span></div>
+<div class="line"><a id="l00413" name="l00413"></a><span class="lineno">  413</span><span class="comment">   *        If `false`, output suitable for TRACE level logging is produced; otherwise for DATA level logging.</span></div>
+<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span><span class="comment">   * @return `os`.</span></div>
+<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span>  <span class="keyword">virtual</span> std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a47e9143f0b9dd4ae9d8c5ace666d5539">to_ostream</a>(std::ostream&amp; os, <span class="keywordtype">bool</span> verbose = <span class="keyword">false</span>) <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span><span class="comment"></span> </div>
+<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span><span class="comment">   * Returns `true`, at compile time, if and only if the native memory representation is big-endian, meaning,</span></div>
+<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span><span class="comment">   * for example, the value `uint32_t(1)` is stored as the bytes, in order, 0x00 0x00 0x00 0x01, and not the reverse.</span></div>
+<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span><span class="comment">   * Can be used in a compile-time check such as `static_assert()`.</span></div>
+<div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span><span class="comment">   * @return See above.</span></div>
+<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span>  <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a57c06fd2d0b1c3ac058c13f9081067f0">native_is_big_endian</a>();</div>
+<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span> </div>
+<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span><span class="keyword">private</span>:</div>
+<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span>  <span class="comment">// Types.</span></div>
+<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span> </div>
+<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span><span class="preprocessor">#pragma pack(push, 1)</span></div>
+<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span><span class="comment"></span> </div>
+<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span><span class="comment">   * Helper data store type for storing binary data needed by serialize_to_raw_data(), when certains bits</span></div>
+<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span><span class="comment">   * are not already represented by the public data members present in `struct` Low_lvl_packet.</span></div>
+<div class="line"><a id="l00435" name="l00435"></a><span class="lineno">  435</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span><span class="comment">   * The need for this is somewhat subtle and is explained fully inside Low_lvl_packet::serialize_to_raw_data(),</span></div>
+<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span><span class="comment">   * so I won&#39;t go into it here.  Also see each data member&#39;s doc header.</span></div>
+<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html">  439</a></span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html">Aux_raw_data</a> :</div>
+<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span>    <span class="keyword">private</span> boost::noncopyable</div>
+<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span>  {<span class="comment"></span></div>
+<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span><span class="comment">    /**</span></div>
+<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span><span class="comment">     * This is the serialized version of the multi-byte `bool` Low_lvl_packet::m_opt_rexmit_on.</span></div>
+<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span><span class="comment">     * Since the latter is of a more civilized `bool` type, and we need a single byte version, this here</span></div>
+<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span><span class="comment">     * is set to the obvious encoding of the `bool`, when Low_lvl_packet::serialize_to_raw_data() needs to</span></div>
+<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span><span class="comment">     * serialize said `bool`.</span></div>
+<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span><span class="comment">     */</span></div>
+<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a22799fa7c7948cc2f35a411523c12479">  448</a></span>    <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a22799fa7c7948cc2f35a411523c12479">m_opt_rexmit_on_raw</a>;</div>
+<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span><span class="comment"></span> </div>
+<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span><span class="comment">    /**</span></div>
+<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span><span class="comment">     * Unused space reserved for future use, ensuring correct alignment of other fields and</span></div>
+<div class="line"><a id="l00452" name="l00452"></a><span class="lineno">  452</span><span class="comment">     * headers.  Currently it must be always set to zero.  Since Low_lvl_packet has no need of a public</span></div>
+<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span><span class="comment">     * data member like this, we keep it in here, as needed for Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span><span class="comment">     */</span></div>
+<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a244e09a3f5318c25a120e3d29379adc8">  455</a></span>    <span class="keyword">const</span> uint16_t <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a244e09a3f5318c25a120e3d29379adc8">m_reserved2</a>;</div>
+<div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span> </div>
+<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span>    <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span><span class="comment"></span> </div>
+<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span><span class="comment">    /// Constructs a mostly-uninitialized object, except for the `const` member(s), if any.</span></div>
+<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span><span class="comment"></span>    <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a7ae37084e00d375a749c3730f77e6072">Aux_raw_data</a>();</div>
+<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span>  };</div>
+<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span> </div>
+<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span><span class="preprocessor">#pragma pack(pop)</span></div>
+<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span><span class="comment"></span> </div>
+<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span><span class="comment">   * A simple, unmodifiable data store that contains the properties unique to each packet type a/k/a</span></div>
+<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span><span class="comment">   * concrete sub-type of Low_lvl_packet.</span></div>
+<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html">  469</a></span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html">Packet_type_info</a> <span class="comment">// Cannot use boost::noncopyable, as that disables direct member initialization.</span></div>
+<div class="line"><a id="l00470" name="l00470"></a><span class="lineno">  470</span>  {<span class="comment"></span></div>
+<div class="line"><a id="l00471" name="l00471"></a><span class="lineno">  471</span><span class="comment">    /// The type ID value, in serialized order, to be used in each serialization of all packets of this type.</span></div>
+<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html#a167901d7c0f96f240dd789027ad99dc5">  472</a></span><span class="comment"></span>    <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html#a167901d7c0f96f240dd789027ad99dc5">m_raw_type_id</a>;</div>
+<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span><span class="comment"></span> </div>
+<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span><span class="comment">    /// The brief string representation of this packet type, suitable for Low_lvl_packet::type_id_to_str().</span></div>
+<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html#a8dc054626823cb59a1570214349b8450">  475</a></span><span class="comment"></span>    <span class="keyword">const</span> std::string <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html#a8dc054626823cb59a1570214349b8450">m_type_id_str</a>;</div>
+<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span>  };</div>
+<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span> </div>
+<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span><span class="comment"></span> </div>
+<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00481" name="l00481"></a><span class="lineno">  481</span><span class="comment">   * Writes a brief representation of `typeid(*this)` -- i.e., the packet type (ACK, RST, etc.) --</span></div>
+<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span><span class="comment">   * to an output stream.  See also type_id_to_str().</span></div>
+<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span><span class="comment">   * @note This is private, because it is meant only to be used in the implementation of</span></div>
+<div class="line"><a id="l00485" name="l00485"></a><span class="lineno">  485</span><span class="comment">   *       the `ostream` manipulator #m_type_ostream_manip, which is public and to be used by users of this type.</span></div>
+<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span><span class="comment">   * @param os</span></div>
+<div class="line"><a id="l00487" name="l00487"></a><span class="lineno">  487</span><span class="comment">   *        The output stream to use.  Normally I&#39;d make this a pointer, but this non-constant reference is</span></div>
+<div class="line"><a id="l00488" name="l00488"></a><span class="lineno">  488</span><span class="comment">   *        fairly typical in STL and the world in general, for `ostream` in particular.</span></div>
+<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span><span class="comment">   * @return `os`.</span></div>
+<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00491" name="l00491"></a><span class="lineno">  491</span>  std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a720372b60ae7b7ee23c9f2d6775c7de1">type_to_ostream</a>(std::ostream&amp; os) <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span><span class="comment"></span> </div>
+<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00494" name="l00494"></a><span class="lineno">  494</span><span class="comment">   * Helper that looks up the Packet_type_info::m_raw_type_id value for the given `typeid(p)`, where `p` refers</span></div>
+<div class="line"><a id="l00495" name="l00495"></a><span class="lineno">  495</span><span class="comment">   * to an instance of a concrete sub-type of Low_lvl_packet.  Note that is returns a reference, and indeed the referred</span></div>
+<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span><span class="comment">   * to memory will remain valid and unmodified throughout the program&#39;s runtime.  Therefore, it can be used</span></div>
+<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span><span class="comment">   * for serialization without copying.</span></div>
+<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span><span class="comment">   * ### Implementation note ###</span></div>
+<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span><span class="comment">   * It would be nice to make this `constexpr`, as then it can be used in `switch()` statement</span></div>
+<div class="line"><a id="l00501" name="l00501"></a><span class="lineno">  501</span><span class="comment">   * conditionals.  Unfortunately, at least as of C++17, this is not possible with our current implementation:</span></div>
+<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span><span class="comment">   * #S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO is an `unordered_map` (as of this writing), and that is not a &quot;literal&quot;</span></div>
+<div class="line"><a id="l00503" name="l00503"></a><span class="lineno">  503</span><span class="comment">   * type (in other words, lookups in it are not done at compile time, even when for a human it would seem clearly</span></div>
+<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span><span class="comment">   * possible... iterators and such are involved, and that goes beyond what `constexpr` evaluation can do).</span></div>
+<div class="line"><a id="l00505" name="l00505"></a><span class="lineno">  505</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00506" name="l00506"></a><span class="lineno">  506</span><span class="comment">   * @param type_id</span></div>
+<div class="line"><a id="l00507" name="l00507"></a><span class="lineno">  507</span><span class="comment">   *        See type_id_to_str().</span></div>
+<div class="line"><a id="l00508" name="l00508"></a><span class="lineno">  508</span><span class="comment">   * @return Reference to a constant area of memory.</span></div>
+<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a>&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6b3de1eb7a337002440ecd1ab0ad058f">type_id_native_to_raw</a>(<span class="keyword">const</span> std::type_info&amp; type_id);</div>
+<div class="line"><a id="l00511" name="l00511"></a><span class="lineno">  511</span><span class="comment"></span> </div>
+<div class="line"><a id="l00512" name="l00512"></a><span class="lineno">  512</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span><span class="comment">   * `virtual` helper for create_from_raw_data_packet() that fills out the fields of `*this` that are *not*</span></div>
+<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span><span class="comment">   * in Low_lvl_packet but rather in the sub-type.</span></div>
+<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span><span class="comment">   * `*raw_buf` must represent the area of create_from_raw_data_packet()&#39;s `*raw_buf` argument immediately</span></div>
+<div class="line"><a id="l00517" name="l00517"></a><span class="lineno">  517</span><span class="comment">   * following the Common Header, which is the area deserialized into Low_lvl_packet proper.  Hence</span></div>
+<div class="line"><a id="l00518" name="l00518"></a><span class="lineno">  518</span><span class="comment">   * `*raw_buf` must point to and contain the length of the rest of that input buffer.  The present method</span></div>
+<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span><span class="comment">   * must then deserialize it into the sub-object&#39;s own fields.</span></div>
+<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span><span class="comment">   * @param raw_buf</span></div>
+<div class="line"><a id="l00522" name="l00522"></a><span class="lineno">  522</span><span class="comment">   *        Pointer to immutable buffer just past the input raw packet data&#39;s Common Header area.</span></div>
+<div class="line"><a id="l00523" name="l00523"></a><span class="lineno">  523</span><span class="comment">   *        Note that while the underlying area is immutable (hence the type #Const_buffer!),</span></div>
+<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span><span class="comment">   *        `*raw_buf` itself may be modified (i.e., the area to which it will refer on exit is undefined).</span></div>
+<div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span><span class="comment">   * @param prefer_no_move</span></div>
+<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span><span class="comment">   *        See create_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00527" name="l00527"></a><span class="lineno">  527</span><span class="comment">   * @param raw_packet</span></div>
+<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span><span class="comment">   *        See create_from_raw_data_packet().  `raw_buf` must start somewhere within it and be</span></div>
+<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span><span class="comment">   *        sized to go exactly to its end.</span></div>
+<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span><span class="comment">   * @return `false` if create_from_raw_data_packet() should return `Ptr()` (error); `true` if</span></div>
+<div class="line"><a id="l00531" name="l00531"></a><span class="lineno">  531</span><span class="comment">   *         deserialization successful.</span></div>
+<div class="line"><a id="l00532" name="l00532"></a><span class="lineno">  532</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00533" name="l00533"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a5c6a0e32bfe5616843746319533ca2c1">  533</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a5c6a0e32bfe5616843746319533ca2c1">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
+<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span>                                                                   <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) = 0;</div>
+<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span> </div>
+<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span>  <span class="comment">// Constants.</span></div>
+<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span><span class="comment"></span> </div>
+<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span><span class="comment">   * Mapping from native `typeid()`, a/k/a packet type (for all possible packet types), to the set of properties of</span></div>
+<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span><span class="comment">   * that packet type.  The keys are every possible value of `type_index(typeid(p))`, where `p` is a reference</span></div>
+<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span><span class="comment">   * to an instance of any concrete Low_lvl_packet sub-type.</span></div>
+<div class="line"><a id="l00542" name="l00542"></a><span class="lineno">  542</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00543" name="l00543"></a><span class="lineno">  543</span><span class="comment">   * ### Implementation note ###</span></div>
+<div class="line"><a id="l00544" name="l00544"></a><span class="lineno">  544</span><span class="comment">   * An alternative way to implement this mechanism (as of this writing, raw type IDs and brief</span></div>
+<div class="line"><a id="l00545" name="l00545"></a><span class="lineno">  545</span><span class="comment">   * string descriptions per packet type) is to use `virtual` liberally, combined with a `switch` if needed.  (Note,</span></div>
+<div class="line"><a id="l00546" name="l00546"></a><span class="lineno">  546</span><span class="comment">   * also, that a way to index -- such as in an `unordered` container -- by</span></div>
+<div class="line"><a id="l00547" name="l00547"></a><span class="lineno">  547</span><span class="comment">   * packet type is necessary elsewhere.  We use `type_index(typeid()))` now, but a [worse] alternative is to have</span></div>
+<div class="line"><a id="l00548" name="l00548"></a><span class="lineno">  548</span><span class="comment">   * `virtual` type IDs returned for each Low_lvl_packet sub-type.)  I could explain</span></div>
+<div class="line"><a id="l00549" name="l00549"></a><span class="lineno">  549</span><span class="comment">   * at length all the reasons why the chosen way is superior, but let me just give you the conclusion: I originally</span></div>
+<div class="line"><a id="l00550" name="l00550"></a><span class="lineno">  550</span><span class="comment">   * tried it the `virtual/switch` way.  Instead of the raw type IDs and</span></div>
+<div class="line"><a id="l00551" name="l00551"></a><span class="lineno">  551</span><span class="comment">   * string descriptions being conveniently encapsulated in the present map (where there&#39;s little to no chance of</span></div>
+<div class="line"><a id="l00552" name="l00552"></a><span class="lineno">  552</span><span class="comment">   * conflicting values), they were distributed across `virtual` implementations.  This was less maintainable; nor did</span></div>
+<div class="line"><a id="l00553" name="l00553"></a><span class="lineno">  553</span><span class="comment">   * it improve OO style, since the raw type ID values (at least) were</span></div>
+<div class="line"><a id="l00554" name="l00554"></a><span class="lineno">  554</span><span class="comment">   * still inter-dependent (were not allowed to conflict) in any case.</span></div>
+<div class="line"><a id="l00555" name="l00555"></a><span class="lineno">  555</span><span class="comment">   * The present solution does not pretend the actual contents of these values are of no interest to Low_lvl_packet</span></div>
+<div class="line"><a id="l00556" name="l00556"></a><span class="lineno">  556</span><span class="comment">   * itself (as opposed to the sub-types), and in not having to pretend this, all related code is quite a bit more</span></div>
+<div class="line"><a id="l00557" name="l00557"></a><span class="lineno">  557</span><span class="comment">   * compact and a bit more maintainable as well.</span></div>
+<div class="line"><a id="l00558" name="l00558"></a><span class="lineno">  558</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a521afb86aaf334b871c9226ce503c508">  559</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> boost::unordered_map&lt;std::type_index, Packet_type_info&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a521afb86aaf334b871c9226ce503c508">S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</a>;</div>
+<div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span> </div>
+<div class="line"><a id="l00561" name="l00561"></a><span class="lineno">  561</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span><span class="comment"></span> </div>
+<div class="line"><a id="l00563" name="l00563"></a><span class="lineno">  563</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00564" name="l00564"></a><span class="lineno">  564</span><span class="comment">   * Auxilliary data area necessary for serialize_to_raw_data() to work.  This is explained in doc header</span></div>
+<div class="line"><a id="l00565" name="l00565"></a><span class="lineno">  565</span><span class="comment">   * for Aux_raw_data.</span></div>
+<div class="line"><a id="l00566" name="l00566"></a><span class="lineno">  566</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00567" name="l00567"></a><span class="lineno">  567</span><span class="comment">   * It is declared `mutable`, because the conceptual state contained within a Low_lvl_packet is expressed</span></div>
+<div class="line"><a id="l00568" name="l00568"></a><span class="lineno">  568</span><span class="comment">   * via its public non-`const` data members.  #m_aux_raw_data is merely a helper data store for</span></div>
+<div class="line"><a id="l00569" name="l00569"></a><span class="lineno">  569</span><span class="comment">   * the `const` method serialize_to_raw_data().  Since that method is `const`, this should be `mutable`,</span></div>
+<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span><span class="comment">   * like a performance cache of sorts, only not exactly.</span></div>
+<div class="line"><a id="l00571" name="l00571"></a><span class="lineno">  571</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00572" name="l00572"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a1295f44e5a4ebdece11ed6d0eea0fbaa">  572</a></span>  <span class="keyword">mutable</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html">Aux_raw_data</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a1295f44e5a4ebdece11ed6d0eea0fbaa">m_aux_raw_data</a>;</div>
+<div class="line"><a id="l00573" name="l00573"></a><span class="lineno">  573</span>}; <span class="comment">// struct Low_lvl_packet</span></div>
+<div class="line"><a id="l00574" name="l00574"></a><span class="lineno">  574</span><span class="comment"></span> </div>
+<div class="line"><a id="l00575" name="l00575"></a><span class="lineno">  575</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00576" name="l00576"></a><span class="lineno">  576</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level SYN packet.</span></div>
+<div class="line"><a id="l00577" name="l00577"></a><span class="lineno">  577</span><span class="comment"> * See Low_lvl_packet doc header for information common to all low-level packets including this one.</span></div>
+<div class="line"><a id="l00578" name="l00578"></a><span class="lineno">  578</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00579" name="l00579"></a><span class="lineno">  579</span><span class="comment"> * A SYN packet is sent by the actively connecting peer to a passively listening server socket.</span></div>
+<div class="line"><a id="l00580" name="l00580"></a><span class="lineno">  580</span><span class="comment"> * Thus a SYN arises from the Node that performs `Node::connect...()`.  In response, a Syn_ack_packet</span></div>
+<div class="line"><a id="l00581" name="l00581"></a><span class="lineno">  581</span><span class="comment"> * is expected.</span></div>
+<div class="line"><a id="l00582" name="l00582"></a><span class="lineno">  582</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00583" name="l00583"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__packet.html">  583</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Syn__packet.html">Syn_packet</a> : <span class="keyword">public</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a></div>
+<div class="line"><a id="l00584" name="l00584"></a><span class="lineno">  584</span>{</div>
+<div class="line"><a id="l00585" name="l00585"></a><span class="lineno">  585</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l00586" name="l00586"></a><span class="lineno">  586</span><span class="comment"></span> </div>
+<div class="line"><a id="l00587" name="l00587"></a><span class="lineno">  587</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00588" name="l00588"></a><span class="lineno">  588</span><span class="comment">   * The Initial Sequence Number (ISN) of the sequence number line that the sender of this SYN will be</span></div>
+<div class="line"><a id="l00589" name="l00589"></a><span class="lineno">  589</span><span class="comment">   * using in `Data_packet`s over this connection, if it succeeds.  All bytes actually sent by the</span></div>
+<div class="line"><a id="l00590" name="l00590"></a><span class="lineno">  590</span><span class="comment">   * SYN sender will start with this ISN + 1 and increment by 1 for each byte in the stream further.</span></div>
+<div class="line"><a id="l00591" name="l00591"></a><span class="lineno">  591</span><span class="comment">   * A retransmission of a given datum starting with sequence number S will still start with sequence number</span></div>
+<div class="line"><a id="l00592" name="l00592"></a><span class="lineno">  592</span><span class="comment">   * S.</span></div>
+<div class="line"><a id="l00593" name="l00593"></a><span class="lineno">  593</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00594" name="l00594"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__packet.html#af235e53d05d025b0808b2ee677c0cba4">  594</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__packet.html#af235e53d05d025b0808b2ee677c0cba4">m_init_seq_num</a>;</div>
+<div class="line"><a id="l00595" name="l00595"></a><span class="lineno">  595</span><span class="comment"></span> </div>
+<div class="line"><a id="l00596" name="l00596"></a><span class="lineno">  596</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00597" name="l00597"></a><span class="lineno">  597</span><span class="comment">   * Arbitrary serialized user-supplied metadata to send in SYN, where it can be deserialized by</span></div>
+<div class="line"><a id="l00598" name="l00598"></a><span class="lineno">  598</span><span class="comment">   * the user on the other side.</span></div>
+<div class="line"><a id="l00599" name="l00599"></a><span class="lineno">  599</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00600" name="l00600"></a><span class="lineno">  600</span><span class="comment">   * @todo Possibly eliminate this, since NetFlow is reliable; the metadata can just be sent explicitly by the</span></div>
+<div class="line"><a id="l00601" name="l00601"></a><span class="lineno">  601</span><span class="comment">   * user once the connection is established.  However, for now reliability is optional.</span></div>
+<div class="line"><a id="l00602" name="l00602"></a><span class="lineno">  602</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00603" name="l00603"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__packet.html#abde26e74af2154fda517d6125353f305">  603</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__packet.html#abde26e74af2154fda517d6125353f305">m_serialized_metadata</a>;</div>
+<div class="line"><a id="l00604" name="l00604"></a><span class="lineno">  604</span> </div>
+<div class="line"><a id="l00605" name="l00605"></a><span class="lineno">  605</span>  <span class="comment">// Type checks.</span></div>
+<div class="line"><a id="l00606" name="l00606"></a><span class="lineno">  606</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_integer</div>
+<div class="line"><a id="l00607" name="l00607"></a><span class="lineno">  607</span>                  &amp;&amp; (!std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_signed),</div>
+<div class="line"><a id="l00608" name="l00608"></a><span class="lineno">  608</span>                <span class="stringliteral">&quot;Raw sequence numbers are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l00609" name="l00609"></a><span class="lineno">  609</span><span class="comment"></span> </div>
+<div class="line"><a id="l00610" name="l00610"></a><span class="lineno">  610</span><span class="comment">  /// In serialized packet, the type ID byte identifying this as a SYN packet.  Must not equal any other packet type&#39;s.</span></div>
+<div class="line"><a id="l00611" name="l00611"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__packet.html#a1f0628c2e2d6d58b881b379a95fde441">  611</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__packet.html#a1f0628c2e2d6d58b881b379a95fde441">S_RAW_TYPE_ID</a>;</div>
+<div class="line"><a id="l00612" name="l00612"></a><span class="lineno">  612</span> </div>
+<div class="line"><a id="l00613" name="l00613"></a><span class="lineno">  613</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00614" name="l00614"></a><span class="lineno">  614</span><span class="comment"></span> </div>
+<div class="line"><a id="l00615" name="l00615"></a><span class="lineno">  615</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00616" name="l00616"></a><span class="lineno">  616</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l00617" name="l00617"></a><span class="lineno">  617</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00618" name="l00618"></a><span class="lineno">  618</span><span class="comment">   * @param raw_bufs</span></div>
+<div class="line"><a id="l00619" name="l00619"></a><span class="lineno">  619</span><span class="comment">   *        See Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l00620" name="l00620"></a><span class="lineno">  620</span><span class="comment">   * @return See Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l00621" name="l00621"></a><span class="lineno">  621</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00622" name="l00622"></a><span class="lineno">  622</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__packet.html#af72461ac0c304cd5ea2bb3fca2b3a444">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const override</span>;</div>
+<div class="line"><a id="l00623" name="l00623"></a><span class="lineno">  623</span> </div>
+<div class="line"><a id="l00624" name="l00624"></a><span class="lineno">  624</span><span class="keyword">private</span>:</div>
+<div class="line"><a id="l00625" name="l00625"></a><span class="lineno">  625</span>  <span class="comment">// Friends.</span></div>
+<div class="line"><a id="l00626" name="l00626"></a><span class="lineno">  626</span><span class="comment"></span> </div>
+<div class="line"><a id="l00627" name="l00627"></a><span class="lineno">  627</span><span class="comment">  /// Friend of Syn_packet: For access to private constructor `Syn_packet(Logger*)`.</span></div>
+<div class="line"><a id="l00628" name="l00628"></a><span class="lineno">  628</span><span class="comment"></span>  <span class="comment">// @todo Doxygen complains unless I make the above a Doxygen comment.  In other places it doesn&#39;t complain.  Fix...?</span></div>
+<div class="line"><a id="l00629" name="l00629"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__packet.html#aca7129058be684c5584b70a90d1813ba">  629</a></span>  <span class="keyword">friend</span> boost::shared_ptr&lt;Syn_packet&gt; Low_lvl_packet::create_uninit_packet&lt;Syn_packet&gt;(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>*);</div>
+<div class="line"><a id="l00630" name="l00630"></a><span class="lineno">  630</span> </div>
+<div class="line"><a id="l00631" name="l00631"></a><span class="lineno">  631</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l00632" name="l00632"></a><span class="lineno">  632</span><span class="comment"></span> </div>
+<div class="line"><a id="l00633" name="l00633"></a><span class="lineno">  633</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00634" name="l00634"></a><span class="lineno">  634</span><span class="comment">   * The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</span></div>
+<div class="line"><a id="l00635" name="l00635"></a><span class="lineno">  635</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00636" name="l00636"></a><span class="lineno">  636</span><span class="comment">   * @param logger_ptr</span></div>
+<div class="line"><a id="l00637" name="l00637"></a><span class="lineno">  637</span><span class="comment">   *        Logger to use subsequently.</span></div>
+<div class="line"><a id="l00638" name="l00638"></a><span class="lineno">  638</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00639" name="l00639"></a><span class="lineno">  639</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__packet.html#a943eb247f6c6a0de134e2d255feaf146">Syn_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
+<div class="line"><a id="l00640" name="l00640"></a><span class="lineno">  640</span> </div>
+<div class="line"><a id="l00641" name="l00641"></a><span class="lineno">  641</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00642" name="l00642"></a><span class="lineno">  642</span><span class="comment"></span> </div>
+<div class="line"><a id="l00643" name="l00643"></a><span class="lineno">  643</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00644" name="l00644"></a><span class="lineno">  644</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l00645" name="l00645"></a><span class="lineno">  645</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00646" name="l00646"></a><span class="lineno">  646</span><span class="comment">   * @param os</span></div>
+<div class="line"><a id="l00647" name="l00647"></a><span class="lineno">  647</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
+<div class="line"><a id="l00648" name="l00648"></a><span class="lineno">  648</span><span class="comment">   * @param verbose</span></div>
+<div class="line"><a id="l00649" name="l00649"></a><span class="lineno">  649</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
+<div class="line"><a id="l00650" name="l00650"></a><span class="lineno">  650</span><span class="comment">   * @return `os`.</span></div>
+<div class="line"><a id="l00651" name="l00651"></a><span class="lineno">  651</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00652" name="l00652"></a><span class="lineno">  652</span>  std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__packet.html#a11ded0bc8596fb4adc815c5322e7ad26">to_ostream</a>(std::ostream&amp; os, <span class="keywordtype">bool</span> verbose) <span class="keyword">const override</span>;</div>
+<div class="line"><a id="l00653" name="l00653"></a><span class="lineno">  653</span><span class="comment"></span> </div>
+<div class="line"><a id="l00654" name="l00654"></a><span class="lineno">  654</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00655" name="l00655"></a><span class="lineno">  655</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l00656" name="l00656"></a><span class="lineno">  656</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00657" name="l00657"></a><span class="lineno">  657</span><span class="comment">   * @param raw_buf</span></div>
+<div class="line"><a id="l00658" name="l00658"></a><span class="lineno">  658</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00659" name="l00659"></a><span class="lineno">  659</span><span class="comment">   * @param prefer_no_move</span></div>
+<div class="line"><a id="l00660" name="l00660"></a><span class="lineno">  660</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00661" name="l00661"></a><span class="lineno">  661</span><span class="comment">   * @param raw_packet</span></div>
+<div class="line"><a id="l00662" name="l00662"></a><span class="lineno">  662</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00663" name="l00663"></a><span class="lineno">  663</span><span class="comment">   * @return See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00664" name="l00664"></a><span class="lineno">  664</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00665" name="l00665"></a><span class="lineno">  665</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__packet.html#aee4a61d5e344959abc89ee83ae105c8a">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
+<div class="line"><a id="l00666" name="l00666"></a><span class="lineno">  666</span>                                                           <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) <span class="keyword">override</span>;</div>
+<div class="line"><a id="l00667" name="l00667"></a><span class="lineno">  667</span>}; <span class="comment">// struct Syn_packet</span></div>
+<div class="line"><a id="l00668" name="l00668"></a><span class="lineno">  668</span><span class="comment"></span> </div>
+<div class="line"><a id="l00669" name="l00669"></a><span class="lineno">  669</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00670" name="l00670"></a><span class="lineno">  670</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level SYN_ACK packet.</span></div>
+<div class="line"><a id="l00671" name="l00671"></a><span class="lineno">  671</span><span class="comment"> * See Low_lvl_packet doc header for information common to all low-level packets including this one.</span></div>
+<div class="line"><a id="l00672" name="l00672"></a><span class="lineno">  672</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00673" name="l00673"></a><span class="lineno">  673</span><span class="comment"> * A SYN_ACK packet is sent by the passively listening server socket in response to a valid received SYN.</span></div>
+<div class="line"><a id="l00674" name="l00674"></a><span class="lineno">  674</span><span class="comment"> * Thus a SYN_ACK arises from the Node that performs Node::listen() and receives SYN.  In response, a</span></div>
+<div class="line"><a id="l00675" name="l00675"></a><span class="lineno">  675</span><span class="comment"> * Syn_ack_ack_packet is expected to complete the 3-way handshake and establish a Peer_socket to Peer_socket</span></div>
+<div class="line"><a id="l00676" name="l00676"></a><span class="lineno">  676</span><span class="comment"> * connection.</span></div>
+<div class="line"><a id="l00677" name="l00677"></a><span class="lineno">  677</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00678" name="l00678"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html">  678</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Syn__ack__packet.html">Syn_ack_packet</a> : <span class="keyword">public</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a></div>
+<div class="line"><a id="l00679" name="l00679"></a><span class="lineno">  679</span>{</div>
+<div class="line"><a id="l00680" name="l00680"></a><span class="lineno">  680</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l00681" name="l00681"></a><span class="lineno">  681</span><span class="comment"></span> </div>
+<div class="line"><a id="l00682" name="l00682"></a><span class="lineno">  682</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00683" name="l00683"></a><span class="lineno">  683</span><span class="comment">   * Same meaning as Syn_packet::m_init_seq_num but applied to the essentially independent opposite</span></div>
+<div class="line"><a id="l00684" name="l00684"></a><span class="lineno">  684</span><span class="comment">   * traffic direction of the full-duplex connection being established.</span></div>
+<div class="line"><a id="l00685" name="l00685"></a><span class="lineno">  685</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00686" name="l00686"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a0535131057e39d7d9092156fa674b9d4">  686</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a0535131057e39d7d9092156fa674b9d4">m_init_seq_num</a>;</div>
+<div class="line"><a id="l00687" name="l00687"></a><span class="lineno">  687</span> </div>
+<div class="line"><a id="l00688" name="l00688"></a><span class="lineno">  688</span><span class="preprocessor">#pragma pack(push, 1)</span><span class="comment"></span></div>
+<div class="line"><a id="l00689" name="l00689"></a><span class="lineno">  689</span><span class="comment">  /// Packed group affected by `#pragma pack`.</span></div>
+<div class="line"><a id="l00690" name="l00690"></a><span class="lineno">  690</span><span class="comment"></span>  <span class="keyword">struct</span></div>
+<div class="line"><a id="l00691" name="l00691"></a><span class="lineno">  691</span>  {<span class="comment"></span></div>
+<div class="line"><a id="l00692" name="l00692"></a><span class="lineno">  692</span><span class="comment">    /**</span></div>
+<div class="line"><a id="l00693" name="l00693"></a><span class="lineno">  693</span><span class="comment">     * Random security token used during SYN_ACK-SYN_ACK_ACK.  For a given connection handshake, the SYN_ACK_ACK</span></div>
+<div class="line"><a id="l00694" name="l00694"></a><span class="lineno">  694</span><span class="comment">     * receiver ensures that `Syn_ack_ack_packet` `m_security_token` it receives is equal to the original</span></div>
+<div class="line"><a id="l00695" name="l00695"></a><span class="lineno">  695</span><span class="comment">     * one it had sent (this #m_security_token here).</span></div>
+<div class="line"><a id="l00696" name="l00696"></a><span class="lineno">  696</span><span class="comment">     */</span></div>
+<div class="line"><a id="l00697" name="l00697"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a46bb776a13c77d7109469c0c29565a30">  697</a></span>    <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a872044469cfa05a3abf3f9ab1c7cf03b">security_token_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a46bb776a13c77d7109469c0c29565a30">m_security_token</a>;</div>
+<div class="line"><a id="l00698" name="l00698"></a><span class="lineno">  698</span><span class="comment"></span> </div>
+<div class="line"><a id="l00699" name="l00699"></a><span class="lineno">  699</span><span class="comment">    /**</span></div>
+<div class="line"><a id="l00700" name="l00700"></a><span class="lineno">  700</span><span class="comment">     * Number of DATA payload bytes the sender of this packet would accept into its Receive buffer,</span></div>
+<div class="line"><a id="l00701" name="l00701"></a><span class="lineno">  701</span><span class="comment">     * without dropping, at the moment this packet was generated to send.  This information is</span></div>
+<div class="line"><a id="l00702" name="l00702"></a><span class="lineno">  702</span><span class="comment">     * piggybacked into ACK (and SYN_ACK/SYN_ACK_ACK) packets.</span></div>
+<div class="line"><a id="l00703" name="l00703"></a><span class="lineno">  703</span><span class="comment">     *</span></div>
+<div class="line"><a id="l00704" name="l00704"></a><span class="lineno">  704</span><span class="comment">     * @todo We could be similar to TCP by opportunistically sending rcv_wnd in other packet types,</span></div>
+<div class="line"><a id="l00705" name="l00705"></a><span class="lineno">  705</span><span class="comment">     * namely Data_packet.  However this would only help in connections with heavy 2-way traffic.</span></div>
+<div class="line"><a id="l00706" name="l00706"></a><span class="lineno">  706</span><span class="comment">     * Personally I would then prefer to create a new packet type instead, Rcv_wnd_packet, and also</span></div>
+<div class="line"><a id="l00707" name="l00707"></a><span class="lineno">  707</span><span class="comment">     * implement some generalized &quot;packet combo&quot; scheme which would allow to piggy-back arbitrary</span></div>
+<div class="line"><a id="l00708" name="l00708"></a><span class="lineno">  708</span><span class="comment">     * packet types together into a single packet; and then we&#39;d dissociate</span></div>
+<div class="line"><a id="l00709" name="l00709"></a><span class="lineno">  709</span><span class="comment">     * ACK/SYN_ACK/SYN_ACK_ACK from rcv_wnd.</span></div>
+<div class="line"><a id="l00710" name="l00710"></a><span class="lineno">  710</span><span class="comment">     */</span></div>
+<div class="line"><a id="l00711" name="l00711"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a1ed3bdee2d19c2adaaf00fda9b5a7ca8">  711</a></span>    <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">rcv_wnd_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a1ed3bdee2d19c2adaaf00fda9b5a7ca8">m_rcv_wnd</a>;</div>
+<div class="line"><a id="l00712" name="l00712"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#aaf2fa9221da49c413441aa8fec93ce91">  712</a></span>  } <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#aaf2fa9221da49c413441aa8fec93ce91">m_packed</a>;</div>
+<div class="line"><a id="l00713" name="l00713"></a><span class="lineno">  713</span><span class="preprocessor">#pragma pack(pop)</span></div>
+<div class="line"><a id="l00714" name="l00714"></a><span class="lineno">  714</span> </div>
+<div class="line"><a id="l00715" name="l00715"></a><span class="lineno">  715</span>  <span class="comment">// Type checks.</span></div>
+<div class="line"><a id="l00716" name="l00716"></a><span class="lineno">  716</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_integer</div>
+<div class="line"><a id="l00717" name="l00717"></a><span class="lineno">  717</span>                  &amp;&amp; (!std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_signed),</div>
+<div class="line"><a id="l00718" name="l00718"></a><span class="lineno">  718</span>                <span class="stringliteral">&quot;Raw sequence numbers are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l00719" name="l00719"></a><span class="lineno">  719</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;security_token_t&gt;::is_integer</div>
+<div class="line"><a id="l00720" name="l00720"></a><span class="lineno">  720</span>                  &amp;&amp; (!std::numeric_limits&lt;security_token_t&gt;::is_signed),</div>
+<div class="line"><a id="l00721" name="l00721"></a><span class="lineno">  721</span>                <span class="stringliteral">&quot;Security tokens are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l00722" name="l00722"></a><span class="lineno">  722</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;rcv_wnd_t&gt;::is_integer</div>
+<div class="line"><a id="l00723" name="l00723"></a><span class="lineno">  723</span>                  &amp;&amp; (!std::numeric_limits&lt;rcv_wnd_t&gt;::is_signed),</div>
+<div class="line"><a id="l00724" name="l00724"></a><span class="lineno">  724</span>                <span class="stringliteral">&quot;rcv_wnd values are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l00725" name="l00725"></a><span class="lineno">  725</span><span class="comment"></span> </div>
+<div class="line"><a id="l00726" name="l00726"></a><span class="lineno">  726</span><span class="comment">  /// In serialized packet, the type ID byte identifying this as a SYN_ACK.  Must not equal any other packet type&#39;s.</span></div>
+<div class="line"><a id="l00727" name="l00727"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#ab6db0fded81c7002f0bd00e9388b09bd">  727</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#ab6db0fded81c7002f0bd00e9388b09bd">S_RAW_TYPE_ID</a>;</div>
+<div class="line"><a id="l00728" name="l00728"></a><span class="lineno">  728</span> </div>
+<div class="line"><a id="l00729" name="l00729"></a><span class="lineno">  729</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00730" name="l00730"></a><span class="lineno">  730</span><span class="comment"></span> </div>
+<div class="line"><a id="l00731" name="l00731"></a><span class="lineno">  731</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00732" name="l00732"></a><span class="lineno">  732</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l00733" name="l00733"></a><span class="lineno">  733</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00734" name="l00734"></a><span class="lineno">  734</span><span class="comment">   * @param raw_bufs</span></div>
+<div class="line"><a id="l00735" name="l00735"></a><span class="lineno">  735</span><span class="comment">   *        See Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l00736" name="l00736"></a><span class="lineno">  736</span><span class="comment">   * @return See Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l00737" name="l00737"></a><span class="lineno">  737</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00738" name="l00738"></a><span class="lineno">  738</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a98fae8deebcd22c8397f2585de18ce9d">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const override</span>;</div>
+<div class="line"><a id="l00739" name="l00739"></a><span class="lineno">  739</span> </div>
+<div class="line"><a id="l00740" name="l00740"></a><span class="lineno">  740</span><span class="keyword">private</span>:</div>
+<div class="line"><a id="l00741" name="l00741"></a><span class="lineno">  741</span>  <span class="comment">// Friends.</span></div>
+<div class="line"><a id="l00742" name="l00742"></a><span class="lineno">  742</span><span class="comment"></span> </div>
+<div class="line"><a id="l00743" name="l00743"></a><span class="lineno">  743</span><span class="comment">  /// Friend of Syn_ack_packet: For access to private constructor `Syn_ack_packet(Logger*)`.</span></div>
+<div class="line"><a id="l00744" name="l00744"></a><span class="lineno">  744</span><span class="comment"></span>  <span class="comment">// @todo Doxygen complains unless I make the above a Doxygen comment.  In other places it doesn&#39;t complain.  Fix...?</span></div>
+<div class="line"><a id="l00745" name="l00745"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#ad0df496e6804311013b1eb0ffe287b3d">  745</a></span>  <span class="keyword">friend</span> boost::shared_ptr&lt;Syn_ack_packet&gt; Low_lvl_packet::create_uninit_packet&lt;Syn_ack_packet&gt;(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>*);</div>
+<div class="line"><a id="l00746" name="l00746"></a><span class="lineno">  746</span> </div>
+<div class="line"><a id="l00747" name="l00747"></a><span class="lineno">  747</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l00748" name="l00748"></a><span class="lineno">  748</span><span class="comment"></span> </div>
+<div class="line"><a id="l00749" name="l00749"></a><span class="lineno">  749</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00750" name="l00750"></a><span class="lineno">  750</span><span class="comment">   * The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</span></div>
+<div class="line"><a id="l00751" name="l00751"></a><span class="lineno">  751</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00752" name="l00752"></a><span class="lineno">  752</span><span class="comment">   * @param logger_ptr</span></div>
+<div class="line"><a id="l00753" name="l00753"></a><span class="lineno">  753</span><span class="comment">   *        Logger to use subsequently.</span></div>
+<div class="line"><a id="l00754" name="l00754"></a><span class="lineno">  754</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00755" name="l00755"></a><span class="lineno">  755</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a439f09a3ae4d1a5125781e220e29c39e">Syn_ack_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
+<div class="line"><a id="l00756" name="l00756"></a><span class="lineno">  756</span> </div>
+<div class="line"><a id="l00757" name="l00757"></a><span class="lineno">  757</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00758" name="l00758"></a><span class="lineno">  758</span><span class="comment"></span> </div>
+<div class="line"><a id="l00759" name="l00759"></a><span class="lineno">  759</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00760" name="l00760"></a><span class="lineno">  760</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l00761" name="l00761"></a><span class="lineno">  761</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00762" name="l00762"></a><span class="lineno">  762</span><span class="comment">   * @param os</span></div>
+<div class="line"><a id="l00763" name="l00763"></a><span class="lineno">  763</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
+<div class="line"><a id="l00764" name="l00764"></a><span class="lineno">  764</span><span class="comment">   * @param verbose</span></div>
+<div class="line"><a id="l00765" name="l00765"></a><span class="lineno">  765</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
+<div class="line"><a id="l00766" name="l00766"></a><span class="lineno">  766</span><span class="comment">   * @return `os`.</span></div>
+<div class="line"><a id="l00767" name="l00767"></a><span class="lineno">  767</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00768" name="l00768"></a><span class="lineno">  768</span>  std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a9c98a61096d86196c073a232e432d03b">to_ostream</a>(std::ostream&amp; os, <span class="keywordtype">bool</span> verbose) <span class="keyword">const override</span>;</div>
+<div class="line"><a id="l00769" name="l00769"></a><span class="lineno">  769</span><span class="comment"></span> </div>
+<div class="line"><a id="l00770" name="l00770"></a><span class="lineno">  770</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00771" name="l00771"></a><span class="lineno">  771</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l00772" name="l00772"></a><span class="lineno">  772</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00773" name="l00773"></a><span class="lineno">  773</span><span class="comment">   * @param raw_buf</span></div>
+<div class="line"><a id="l00774" name="l00774"></a><span class="lineno">  774</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00775" name="l00775"></a><span class="lineno">  775</span><span class="comment">   * @param prefer_no_move</span></div>
+<div class="line"><a id="l00776" name="l00776"></a><span class="lineno">  776</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00777" name="l00777"></a><span class="lineno">  777</span><span class="comment">   * @param raw_packet</span></div>
+<div class="line"><a id="l00778" name="l00778"></a><span class="lineno">  778</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00779" name="l00779"></a><span class="lineno">  779</span><span class="comment">   * @return See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00780" name="l00780"></a><span class="lineno">  780</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00781" name="l00781"></a><span class="lineno">  781</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a1ce651745da7f488ec0bcf3d4f3467a9">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
+<div class="line"><a id="l00782" name="l00782"></a><span class="lineno">  782</span>                                                           <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) <span class="keyword">override</span>;</div>
+<div class="line"><a id="l00783" name="l00783"></a><span class="lineno">  783</span>};</div>
+<div class="line"><a id="l00784" name="l00784"></a><span class="lineno">  784</span><span class="comment"></span> </div>
+<div class="line"><a id="l00785" name="l00785"></a><span class="lineno">  785</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00786" name="l00786"></a><span class="lineno">  786</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level SYN_ACK_ACK packet.</span></div>
+<div class="line"><a id="l00787" name="l00787"></a><span class="lineno">  787</span><span class="comment"> * See Low_lvl_packet doc header for information common to all low-level packets including this one.</span></div>
+<div class="line"><a id="l00788" name="l00788"></a><span class="lineno">  788</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00789" name="l00789"></a><span class="lineno">  789</span><span class="comment"> * A SYN_ACK_ACK packet is sent by the original SYN sender in response to a valid received SYN_ACK,</span></div>
+<div class="line"><a id="l00790" name="l00790"></a><span class="lineno">  790</span><span class="comment"> * completing the 3-way handshake and establishing a Peer_socket to Peer_socket connection.</span></div>
+<div class="line"><a id="l00791" name="l00791"></a><span class="lineno">  791</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00792" name="l00792"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html">  792</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html">Syn_ack_ack_packet</a> : <span class="keyword">public</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a></div>
+<div class="line"><a id="l00793" name="l00793"></a><span class="lineno">  793</span>{</div>
+<div class="line"><a id="l00794" name="l00794"></a><span class="lineno">  794</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l00795" name="l00795"></a><span class="lineno">  795</span> </div>
+<div class="line"><a id="l00796" name="l00796"></a><span class="lineno">  796</span><span class="preprocessor">#pragma pack(push, 1)</span><span class="comment"></span></div>
+<div class="line"><a id="l00797" name="l00797"></a><span class="lineno">  797</span><span class="comment">  /// Packed group affected by `#pragma pack`.</span></div>
+<div class="line"><a id="l00798" name="l00798"></a><span class="lineno">  798</span><span class="comment"></span>  <span class="keyword">struct</span></div>
+<div class="line"><a id="l00799" name="l00799"></a><span class="lineno">  799</span>  {<span class="comment"></span></div>
+<div class="line"><a id="l00800" name="l00800"></a><span class="lineno">  800</span><span class="comment">    /**</span></div>
+<div class="line"><a id="l00801" name="l00801"></a><span class="lineno">  801</span><span class="comment">     * This must equal `Syn_ack_packet` `m_security_token` received in the packet to which `*this` is</span></div>
+<div class="line"><a id="l00802" name="l00802"></a><span class="lineno">  802</span><span class="comment">     * replying.  The other side will only proceed with the connection if the two are equal.</span></div>
+<div class="line"><a id="l00803" name="l00803"></a><span class="lineno">  803</span><span class="comment">     */</span></div>
+<div class="line"><a id="l00804" name="l00804"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#ab2537625fa282f302e586dee1c24cd19">  804</a></span>    <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a872044469cfa05a3abf3f9ab1c7cf03b">security_token_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#ab2537625fa282f302e586dee1c24cd19">m_security_token</a>;</div>
+<div class="line"><a id="l00805" name="l00805"></a><span class="lineno">  805</span><span class="comment"></span> </div>
+<div class="line"><a id="l00806" name="l00806"></a><span class="lineno">  806</span><span class="comment">    /**</span></div>
+<div class="line"><a id="l00807" name="l00807"></a><span class="lineno">  807</span><span class="comment">     * Same meaning as in `Syn_ack_packet` but applied to the essentially independent opposite</span></div>
+<div class="line"><a id="l00808" name="l00808"></a><span class="lineno">  808</span><span class="comment">     * traffic direction of the full-duplex connection being established.</span></div>
+<div class="line"><a id="l00809" name="l00809"></a><span class="lineno">  809</span><span class="comment">     */</span></div>
+<div class="line"><a id="l00810" name="l00810"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a3a3a3d676ec71eee0d2daa56a3b73403">  810</a></span>    <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">rcv_wnd_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a3a3a3d676ec71eee0d2daa56a3b73403">m_rcv_wnd</a>;</div>
+<div class="line"><a id="l00811" name="l00811"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a1a0bad5bc4e9c966709f7bc8a2469bf6">  811</a></span>  } <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a1a0bad5bc4e9c966709f7bc8a2469bf6">m_packed</a>;</div>
+<div class="line"><a id="l00812" name="l00812"></a><span class="lineno">  812</span><span class="preprocessor">#pragma pack(pop)</span></div>
+<div class="line"><a id="l00813" name="l00813"></a><span class="lineno">  813</span> </div>
+<div class="line"><a id="l00814" name="l00814"></a><span class="lineno">  814</span>  <span class="comment">// Type checks.</span></div>
+<div class="line"><a id="l00815" name="l00815"></a><span class="lineno">  815</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;security_token_t&gt;::is_integer</div>
+<div class="line"><a id="l00816" name="l00816"></a><span class="lineno">  816</span>                  &amp;&amp; (!std::numeric_limits&lt;security_token_t&gt;::is_signed),</div>
+<div class="line"><a id="l00817" name="l00817"></a><span class="lineno">  817</span>                <span class="stringliteral">&quot;Security tokens are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l00818" name="l00818"></a><span class="lineno">  818</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;rcv_wnd_t&gt;::is_integer</div>
+<div class="line"><a id="l00819" name="l00819"></a><span class="lineno">  819</span>                  &amp;&amp; (!std::numeric_limits&lt;rcv_wnd_t&gt;::is_signed),</div>
+<div class="line"><a id="l00820" name="l00820"></a><span class="lineno">  820</span>                <span class="stringliteral">&quot;rcv_wnd values are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l00821" name="l00821"></a><span class="lineno">  821</span><span class="comment"></span> </div>
+<div class="line"><a id="l00822" name="l00822"></a><span class="lineno">  822</span><span class="comment">  /// In serialized packet, the type ID byte identifying this as a SYN_ACK_ACK.  Must not equal any other packet type&#39;s.</span></div>
+<div class="line"><a id="l00823" name="l00823"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#ade7cf2a204f400633f079bed7b4b4972">  823</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#ade7cf2a204f400633f079bed7b4b4972">S_RAW_TYPE_ID</a>;</div>
+<div class="line"><a id="l00824" name="l00824"></a><span class="lineno">  824</span> </div>
+<div class="line"><a id="l00825" name="l00825"></a><span class="lineno">  825</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00826" name="l00826"></a><span class="lineno">  826</span><span class="comment"></span> </div>
+<div class="line"><a id="l00827" name="l00827"></a><span class="lineno">  827</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00828" name="l00828"></a><span class="lineno">  828</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l00829" name="l00829"></a><span class="lineno">  829</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00830" name="l00830"></a><span class="lineno">  830</span><span class="comment">   * @param raw_bufs</span></div>
+<div class="line"><a id="l00831" name="l00831"></a><span class="lineno">  831</span><span class="comment">   *        See Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l00832" name="l00832"></a><span class="lineno">  832</span><span class="comment">   * @return See Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l00833" name="l00833"></a><span class="lineno">  833</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00834" name="l00834"></a><span class="lineno">  834</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a817e22c18b67db0e2e4794b962e4365d">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const override</span>;</div>
+<div class="line"><a id="l00835" name="l00835"></a><span class="lineno">  835</span> </div>
+<div class="line"><a id="l00836" name="l00836"></a><span class="lineno">  836</span><span class="keyword">private</span>:</div>
+<div class="line"><a id="l00837" name="l00837"></a><span class="lineno">  837</span>  <span class="comment">// Friends.</span></div>
+<div class="line"><a id="l00838" name="l00838"></a><span class="lineno">  838</span><span class="comment"></span> </div>
+<div class="line"><a id="l00839" name="l00839"></a><span class="lineno">  839</span><span class="comment">  /// Friend of Syn_ack_ack_packet: For access to private constructor `Syn_ack_ack_packet(Logger*)`.</span></div>
+<div class="line"><a id="l00840" name="l00840"></a><span class="lineno">  840</span><span class="comment"></span>  <span class="comment">// @todo Doxygen complains unless I make the above a Doxygen comment.  In other places it doesn&#39;t complain.  Fix...?</span></div>
+<div class="line"><a id="l00841" name="l00841"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a14d8cfa29392fb69ce6b08306e78d1fd">  841</a></span>  <span class="keyword">friend</span> boost::shared_ptr&lt;Syn_ack_ack_packet&gt; Low_lvl_packet::create_uninit_packet&lt;Syn_ack_ack_packet&gt;(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>*);</div>
+<div class="line"><a id="l00842" name="l00842"></a><span class="lineno">  842</span> </div>
+<div class="line"><a id="l00843" name="l00843"></a><span class="lineno">  843</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l00844" name="l00844"></a><span class="lineno">  844</span><span class="comment"></span> </div>
+<div class="line"><a id="l00845" name="l00845"></a><span class="lineno">  845</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00846" name="l00846"></a><span class="lineno">  846</span><span class="comment">   * The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</span></div>
+<div class="line"><a id="l00847" name="l00847"></a><span class="lineno">  847</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00848" name="l00848"></a><span class="lineno">  848</span><span class="comment">   * @param logger_ptr</span></div>
+<div class="line"><a id="l00849" name="l00849"></a><span class="lineno">  849</span><span class="comment">   *        Logger to use subsequently.</span></div>
+<div class="line"><a id="l00850" name="l00850"></a><span class="lineno">  850</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00851" name="l00851"></a><span class="lineno">  851</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a86707d5efb4b1b5ad056a4255976e262">Syn_ack_ack_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
+<div class="line"><a id="l00852" name="l00852"></a><span class="lineno">  852</span> </div>
+<div class="line"><a id="l00853" name="l00853"></a><span class="lineno">  853</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00854" name="l00854"></a><span class="lineno">  854</span><span class="comment"></span> </div>
+<div class="line"><a id="l00855" name="l00855"></a><span class="lineno">  855</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00856" name="l00856"></a><span class="lineno">  856</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l00857" name="l00857"></a><span class="lineno">  857</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00858" name="l00858"></a><span class="lineno">  858</span><span class="comment">   * @param os</span></div>
+<div class="line"><a id="l00859" name="l00859"></a><span class="lineno">  859</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
+<div class="line"><a id="l00860" name="l00860"></a><span class="lineno">  860</span><span class="comment">   * @param verbose</span></div>
+<div class="line"><a id="l00861" name="l00861"></a><span class="lineno">  861</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
+<div class="line"><a id="l00862" name="l00862"></a><span class="lineno">  862</span><span class="comment">   * @return `os`.</span></div>
+<div class="line"><a id="l00863" name="l00863"></a><span class="lineno">  863</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00864" name="l00864"></a><span class="lineno">  864</span>  std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a0f2665713bcedc20db1365412630ff6f">to_ostream</a>(std::ostream&amp; os, <span class="keywordtype">bool</span> verbose) <span class="keyword">const override</span>;</div>
+<div class="line"><a id="l00865" name="l00865"></a><span class="lineno">  865</span><span class="comment"></span> </div>
+<div class="line"><a id="l00866" name="l00866"></a><span class="lineno">  866</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00867" name="l00867"></a><span class="lineno">  867</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l00868" name="l00868"></a><span class="lineno">  868</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00869" name="l00869"></a><span class="lineno">  869</span><span class="comment">   * @param raw_buf</span></div>
+<div class="line"><a id="l00870" name="l00870"></a><span class="lineno">  870</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00871" name="l00871"></a><span class="lineno">  871</span><span class="comment">   * @param prefer_no_move</span></div>
+<div class="line"><a id="l00872" name="l00872"></a><span class="lineno">  872</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00873" name="l00873"></a><span class="lineno">  873</span><span class="comment">   * @param raw_packet</span></div>
+<div class="line"><a id="l00874" name="l00874"></a><span class="lineno">  874</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00875" name="l00875"></a><span class="lineno">  875</span><span class="comment">   * @return See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00876" name="l00876"></a><span class="lineno">  876</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00877" name="l00877"></a><span class="lineno">  877</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a15bb98c2c3c00dc2c2db7f76a932d65c">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
+<div class="line"><a id="l00878" name="l00878"></a><span class="lineno">  878</span>                                                           <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) <span class="keyword">override</span>;</div>
+<div class="line"><a id="l00879" name="l00879"></a><span class="lineno">  879</span>}; <span class="comment">// struct Syn_ack_ack_packet</span></div>
+<div class="line"><a id="l00880" name="l00880"></a><span class="lineno">  880</span><span class="comment"></span> </div>
+<div class="line"><a id="l00881" name="l00881"></a><span class="lineno">  881</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00882" name="l00882"></a><span class="lineno">  882</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level DATA packet.</span></div>
+<div class="line"><a id="l00883" name="l00883"></a><span class="lineno">  883</span><span class="comment"> * See Low_lvl_packet doc header for information common to all low-level packets including this one.</span></div>
+<div class="line"><a id="l00884" name="l00884"></a><span class="lineno">  884</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00885" name="l00885"></a><span class="lineno">  885</span><span class="comment"> * Each DATA packet contains actual data payload packetized from the application-provided stream</span></div>
+<div class="line"><a id="l00886" name="l00886"></a><span class="lineno">  886</span><span class="comment"> * of bytes.  It is identified by the sequence number (encoded in this object) of the first</span></div>
+<div class="line"><a id="l00887" name="l00887"></a><span class="lineno">  887</span><span class="comment"> * byte of that payload.  An individual acknowledgment inside an Ack_packet refers to the Data_packet</span></div>
+<div class="line"><a id="l00888" name="l00888"></a><span class="lineno">  888</span><span class="comment"> * by that first sequence number.  If Low_lvl_packet::m_opt_rexmit_on is `true`, then #m_rexmit_id</span></div>
+<div class="line"><a id="l00889" name="l00889"></a><span class="lineno">  889</span><span class="comment"> * identifies which attempt at sending the payload with this sequence number and payload this</span></div>
+<div class="line"><a id="l00890" name="l00890"></a><span class="lineno">  890</span><span class="comment"> * packet represents: 0 is 1st attempt, 1 is 1st retry, 2 is 2nd retry, etc.  If that option is off,</span></div>
+<div class="line"><a id="l00891" name="l00891"></a><span class="lineno">  891</span><span class="comment"> * then a lost packet is never retransmitted; and therefore #m_rexmit_id is always 0.</span></div>
+<div class="line"><a id="l00892" name="l00892"></a><span class="lineno">  892</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00893" name="l00893"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html">  893</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Data__packet.html">Data_packet</a> : <span class="keyword">public</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a></div>
+<div class="line"><a id="l00894" name="l00894"></a><span class="lineno">  894</span>{</div>
+<div class="line"><a id="l00895" name="l00895"></a><span class="lineno">  895</span>  <span class="comment">// Types.</span></div>
+<div class="line"><a id="l00896" name="l00896"></a><span class="lineno">  896</span><span class="comment"></span> </div>
+<div class="line"><a id="l00897" name="l00897"></a><span class="lineno">  897</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00898" name="l00898"></a><span class="lineno">  898</span><span class="comment">   * Type used to store the retransmission count in DATA and ACK packets.</span></div>
+<div class="line"><a id="l00899" name="l00899"></a><span class="lineno">  899</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00900" name="l00900"></a><span class="lineno">  900</span><span class="comment">   * Why 8 bits?  This handles up 255 retransmissions, which is long after we&#39;d kill the connection</span></div>
+<div class="line"><a id="l00901" name="l00901"></a><span class="lineno">  901</span><span class="comment">   * anyway.</span></div>
+<div class="line"><a id="l00902" name="l00902"></a><span class="lineno">  902</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00903" name="l00903"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#abba220658ada68bae04c9c2ebd06f72c">  903</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">rexmit_id_t</a> = <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a>;</div>
+<div class="line"><a id="l00904" name="l00904"></a><span class="lineno">  904</span> </div>
+<div class="line"><a id="l00905" name="l00905"></a><span class="lineno">  905</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l00906" name="l00906"></a><span class="lineno">  906</span><span class="comment"></span> </div>
+<div class="line"><a id="l00907" name="l00907"></a><span class="lineno">  907</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00908" name="l00908"></a><span class="lineno">  908</span><span class="comment">   * The sequence number of the first byte in the payload; i.e., of `m_data.front()`, a/k/a `m_data[0]`.</span></div>
+<div class="line"><a id="l00909" name="l00909"></a><span class="lineno">  909</span><span class="comment">   * Note that #m_data cannot be empty, so #m_seq_num is always meaningful.</span></div>
+<div class="line"><a id="l00910" name="l00910"></a><span class="lineno">  910</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00911" name="l00911"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#a94d817529e94ac88ee2cea6f3dd1badb">  911</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Data__packet.html#a94d817529e94ac88ee2cea6f3dd1badb">m_seq_num</a>;</div>
+<div class="line"><a id="l00912" name="l00912"></a><span class="lineno">  912</span><span class="comment"></span> </div>
+<div class="line"><a id="l00913" name="l00913"></a><span class="lineno">  913</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00914" name="l00914"></a><span class="lineno">  914</span><span class="comment">   * Retransmit counter of the DATA packet being sent.  Identifies which attempt we are acknowledging</span></div>
+<div class="line"><a id="l00915" name="l00915"></a><span class="lineno">  915</span><span class="comment">   * (0 = initial, 1 = first retransmit, 2 = second retransmit, ...).  Always 0 if `!m_opt_rexmit_on`.</span></div>
+<div class="line"><a id="l00916" name="l00916"></a><span class="lineno">  916</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00917" name="l00917"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#ac149f87b8915213857c707b0f3562ef0">  917</a></span>  <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">rexmit_id_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Data__packet.html#ac149f87b8915213857c707b0f3562ef0">m_rexmit_id</a>;</div>
+<div class="line"><a id="l00918" name="l00918"></a><span class="lineno">  918</span><span class="comment"></span> </div>
+<div class="line"><a id="l00919" name="l00919"></a><span class="lineno">  919</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00920" name="l00920"></a><span class="lineno">  920</span><span class="comment">   * This is the serialized version of `m_data.size()` (see #m_data).  We send this value, even though it could</span></div>
+<div class="line"><a id="l00921" name="l00921"></a><span class="lineno">  921</span><span class="comment">   * be figured out from the overall serialized size, to ensure integrity (see the deserialization logic for details).</span></div>
+<div class="line"><a id="l00922" name="l00922"></a><span class="lineno">  922</span><span class="comment">   * This here is set to `m_data.size()`, when Low_lvl_packet::serialize_to_raw_data() needs to</span></div>
+<div class="line"><a id="l00923" name="l00923"></a><span class="lineno">  923</span><span class="comment">   * serialize that value.  Outside serialization `m_data.size()` is used directly, and this</span></div>
+<div class="line"><a id="l00924" name="l00924"></a><span class="lineno">  924</span><span class="comment">   * value is meaningless.</span></div>
+<div class="line"><a id="l00925" name="l00925"></a><span class="lineno">  925</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00926" name="l00926"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#a07cf37a89d947f40354a79a885407567">  926</a></span>  <span class="keyword">mutable</span> uint16_t <a class="code hl_variable" href="structflow_1_1net__flow_1_1Data__packet.html#a07cf37a89d947f40354a79a885407567">m_data_size_raw</a>;</div>
+<div class="line"><a id="l00927" name="l00927"></a><span class="lineno">  927</span><span class="comment"></span> </div>
+<div class="line"><a id="l00928" name="l00928"></a><span class="lineno">  928</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00929" name="l00929"></a><span class="lineno">  929</span><span class="comment">   * The payload.  Cannot be `empty()`.</span></div>
+<div class="line"><a id="l00930" name="l00930"></a><span class="lineno">  930</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00931" name="l00931"></a><span class="lineno">  931</span><span class="comment">   * As of this writing there is an important (for performance) subtlety about how this is originally filled in</span></div>
+<div class="line"><a id="l00932" name="l00932"></a><span class="lineno">  932</span><span class="comment">   * when deserializing a wire-arrived packet.  See Data_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00933" name="l00933"></a><span class="lineno">  933</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00934" name="l00934"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d">  934</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d">m_data</a>;</div>
+<div class="line"><a id="l00935" name="l00935"></a><span class="lineno">  935</span> </div>
+<div class="line"><a id="l00936" name="l00936"></a><span class="lineno">  936</span>  <span class="comment">// Type checks.</span></div>
+<div class="line"><a id="l00937" name="l00937"></a><span class="lineno">  937</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_integer</div>
+<div class="line"><a id="l00938" name="l00938"></a><span class="lineno">  938</span>                  &amp;&amp; (!std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_signed),</div>
+<div class="line"><a id="l00939" name="l00939"></a><span class="lineno">  939</span>                <span class="stringliteral">&quot;Raw sequence numbers are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l00940" name="l00940"></a><span class="lineno">  940</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;rexmit_id_t&gt;::is_integer</div>
+<div class="line"><a id="l00941" name="l00941"></a><span class="lineno">  941</span>                  &amp;&amp; (!std::numeric_limits&lt;rexmit_id_t&gt;::is_signed),</div>
+<div class="line"><a id="l00942" name="l00942"></a><span class="lineno">  942</span>                <span class="stringliteral">&quot;Retransmission IDs are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l00943" name="l00943"></a><span class="lineno">  943</span><span class="comment"></span> </div>
+<div class="line"><a id="l00944" name="l00944"></a><span class="lineno">  944</span><span class="comment">  /// In serialized packet, the type ID byte identifying this as a DATA packet.  Must not equal any other packet type&#39;s.</span></div>
+<div class="line"><a id="l00945" name="l00945"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#a463336b35dde27c250b477ca35adb7d4">  945</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Data__packet.html#a463336b35dde27c250b477ca35adb7d4">S_RAW_TYPE_ID</a>;</div>
+<div class="line"><a id="l00946" name="l00946"></a><span class="lineno">  946</span> </div>
+<div class="line"><a id="l00947" name="l00947"></a><span class="lineno">  947</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00948" name="l00948"></a><span class="lineno">  948</span><span class="comment"></span> </div>
+<div class="line"><a id="l00949" name="l00949"></a><span class="lineno">  949</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00950" name="l00950"></a><span class="lineno">  950</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l00951" name="l00951"></a><span class="lineno">  951</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00952" name="l00952"></a><span class="lineno">  952</span><span class="comment">   * @param raw_bufs</span></div>
+<div class="line"><a id="l00953" name="l00953"></a><span class="lineno">  953</span><span class="comment">   *        See Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l00954" name="l00954"></a><span class="lineno">  954</span><span class="comment">   * @return See Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l00955" name="l00955"></a><span class="lineno">  955</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00956" name="l00956"></a><span class="lineno">  956</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Data__packet.html#add582f24dd9442f987f2c458e4b5d3d7">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const override</span>;</div>
+<div class="line"><a id="l00957" name="l00957"></a><span class="lineno">  957</span> </div>
+<div class="line"><a id="l00958" name="l00958"></a><span class="lineno">  958</span><span class="keyword">private</span>:</div>
+<div class="line"><a id="l00959" name="l00959"></a><span class="lineno">  959</span>  <span class="comment">// Friends.</span></div>
+<div class="line"><a id="l00960" name="l00960"></a><span class="lineno">  960</span><span class="comment"></span> </div>
+<div class="line"><a id="l00961" name="l00961"></a><span class="lineno">  961</span><span class="comment">  /// Friend of Data_packet: For access to private constructor `Data_packet(Logger*)`.</span></div>
+<div class="line"><a id="l00962" name="l00962"></a><span class="lineno">  962</span><span class="comment"></span>  <span class="comment">// @todo Doxygen complains unless I make the above a Doxygen comment.  In other places it doesn&#39;t complain.  Fix...?</span></div>
+<div class="line"><a id="l00963" name="l00963"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Data__packet.html#a94c3ee43fa396c27a95ab54830700d1a">  963</a></span>  <span class="keyword">friend</span> boost::shared_ptr&lt;Data_packet&gt; Low_lvl_packet::create_uninit_packet&lt;Data_packet&gt;(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>*);</div>
+<div class="line"><a id="l00964" name="l00964"></a><span class="lineno">  964</span> </div>
+<div class="line"><a id="l00965" name="l00965"></a><span class="lineno">  965</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l00966" name="l00966"></a><span class="lineno">  966</span><span class="comment"></span> </div>
+<div class="line"><a id="l00967" name="l00967"></a><span class="lineno">  967</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00968" name="l00968"></a><span class="lineno">  968</span><span class="comment">   * The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</span></div>
+<div class="line"><a id="l00969" name="l00969"></a><span class="lineno">  969</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00970" name="l00970"></a><span class="lineno">  970</span><span class="comment">   * @param logger_ptr</span></div>
+<div class="line"><a id="l00971" name="l00971"></a><span class="lineno">  971</span><span class="comment">   *        Logger to use subsequently.</span></div>
+<div class="line"><a id="l00972" name="l00972"></a><span class="lineno">  972</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00973" name="l00973"></a><span class="lineno">  973</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Data__packet.html#a0c5cb656fd8fd513d66a349285558900">Data_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
+<div class="line"><a id="l00974" name="l00974"></a><span class="lineno">  974</span> </div>
+<div class="line"><a id="l00975" name="l00975"></a><span class="lineno">  975</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00976" name="l00976"></a><span class="lineno">  976</span><span class="comment"></span> </div>
+<div class="line"><a id="l00977" name="l00977"></a><span class="lineno">  977</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00978" name="l00978"></a><span class="lineno">  978</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l00979" name="l00979"></a><span class="lineno">  979</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00980" name="l00980"></a><span class="lineno">  980</span><span class="comment">   * @param os</span></div>
+<div class="line"><a id="l00981" name="l00981"></a><span class="lineno">  981</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
+<div class="line"><a id="l00982" name="l00982"></a><span class="lineno">  982</span><span class="comment">   * @param verbose</span></div>
+<div class="line"><a id="l00983" name="l00983"></a><span class="lineno">  983</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
+<div class="line"><a id="l00984" name="l00984"></a><span class="lineno">  984</span><span class="comment">   * @return `os`.</span></div>
+<div class="line"><a id="l00985" name="l00985"></a><span class="lineno">  985</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00986" name="l00986"></a><span class="lineno">  986</span>  std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Data__packet.html#a0bfa19b23164c8189c05d3c2417cf23b">to_ostream</a>(std::ostream&amp; os, <span class="keywordtype">bool</span> verbose) <span class="keyword">const override</span>;</div>
+<div class="line"><a id="l00987" name="l00987"></a><span class="lineno">  987</span><span class="comment"></span> </div>
+<div class="line"><a id="l00988" name="l00988"></a><span class="lineno">  988</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00989" name="l00989"></a><span class="lineno">  989</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l00990" name="l00990"></a><span class="lineno">  990</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00991" name="l00991"></a><span class="lineno">  991</span><span class="comment">   * @param raw_buf</span></div>
+<div class="line"><a id="l00992" name="l00992"></a><span class="lineno">  992</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00993" name="l00993"></a><span class="lineno">  993</span><span class="comment">   * @param prefer_no_move</span></div>
+<div class="line"><a id="l00994" name="l00994"></a><span class="lineno">  994</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00995" name="l00995"></a><span class="lineno">  995</span><span class="comment">   * @param raw_packet</span></div>
+<div class="line"><a id="l00996" name="l00996"></a><span class="lineno">  996</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00997" name="l00997"></a><span class="lineno">  997</span><span class="comment">   * @return See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l00998" name="l00998"></a><span class="lineno">  998</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00999" name="l00999"></a><span class="lineno">  999</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Data__packet.html#ac2a390c4cb7abfeec7c658c866dbfc06">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
+<div class="line"><a id="l01000" name="l01000"></a><span class="lineno"> 1000</span>                                                           <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) <span class="keyword">override</span>;</div>
+<div class="line"><a id="l01001" name="l01001"></a><span class="lineno"> 1001</span>}; <span class="comment">// struct Data_packet</span></div>
+<div class="line"><a id="l01002" name="l01002"></a><span class="lineno"> 1002</span><span class="comment"></span> </div>
+<div class="line"><a id="l01003" name="l01003"></a><span class="lineno"> 1003</span><span class="comment">/**</span></div>
+<div class="line"><a id="l01004" name="l01004"></a><span class="lineno"> 1004</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level ACK packet.</span></div>
+<div class="line"><a id="l01005" name="l01005"></a><span class="lineno"> 1005</span><span class="comment"> * See Low_lvl_packet doc header for information common to all low-level packets including this one.</span></div>
+<div class="line"><a id="l01006" name="l01006"></a><span class="lineno"> 1006</span><span class="comment"> *</span></div>
+<div class="line"><a id="l01007" name="l01007"></a><span class="lineno"> 1007</span><span class="comment"> * Each ACK packet encapsulates 0 or more individual acknowledgments, each acknowledging receipt of</span></div>
+<div class="line"><a id="l01008" name="l01008"></a><span class="lineno"> 1008</span><span class="comment"> * a specific, distinct Data_packaet; and the current rcv_wnd (receive window state) on the ACK sender&#39;s</span></div>
+<div class="line"><a id="l01009" name="l01009"></a><span class="lineno"> 1009</span><span class="comment"> * side.  The latter datum is always present.  If individual acks are present, then the rcv_wnd advertising</span></div>
+<div class="line"><a id="l01010" name="l01010"></a><span class="lineno"> 1010</span><span class="comment"> * is merely opportunistic.  If NO individual acks are present, then the rcv_wnd advertising is intentional</span></div>
+<div class="line"><a id="l01011" name="l01011"></a><span class="lineno"> 1011</span><span class="comment"> * for its own sake.  The algorithm for the latter is discussed elsewhere.</span></div>
+<div class="line"><a id="l01012" name="l01012"></a><span class="lineno"> 1012</span><span class="comment"> *</span></div>
+<div class="line"><a id="l01013" name="l01013"></a><span class="lineno"> 1013</span><span class="comment"> * The mechanics of individual acks are further explored in the doc header for Ack_packet::Individual_ack</span></div>
+<div class="line"><a id="l01014" name="l01014"></a><span class="lineno"> 1014</span><span class="comment"> * nested `struct`.</span></div>
+<div class="line"><a id="l01015" name="l01015"></a><span class="lineno"> 1015</span><span class="comment"> *</span></div>
+<div class="line"><a id="l01016" name="l01016"></a><span class="lineno"> 1016</span><span class="comment"> * @todo Conceivably, since Ack_packet actually stores 1+ acknowledgments, it should become Acks_packet, of</span></div>
+<div class="line"><a id="l01017" name="l01017"></a><span class="lineno"> 1017</span><span class="comment"> * type ACKS (not ACK).  Many comments and log messages would become clearer, as no one would assume an individual</span></div>
+<div class="line"><a id="l01018" name="l01018"></a><span class="lineno"> 1018</span><span class="comment"> * packet&#39;s acknowledgment when reading &quot;an ACK&quot; or similar phrase.</span></div>
+<div class="line"><a id="l01019" name="l01019"></a><span class="lineno"> 1019</span><span class="comment"> */</span></div>
+<div class="line"><a id="l01020" name="l01020"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html"> 1020</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet.html">Ack_packet</a> : <span class="keyword">public</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a></div>
+<div class="line"><a id="l01021" name="l01021"></a><span class="lineno"> 1021</span>{</div>
+<div class="line"><a id="l01022" name="l01022"></a><span class="lineno"> 1022</span>  <span class="comment">// Types.</span></div>
+<div class="line"><a id="l01023" name="l01023"></a><span class="lineno"> 1023</span><span class="comment"></span> </div>
+<div class="line"><a id="l01024" name="l01024"></a><span class="lineno"> 1024</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01025" name="l01025"></a><span class="lineno"> 1025</span><span class="comment">   * Type used to store the ACK delay for a given individual acknowledged packet.  The value</span></div>
+<div class="line"><a id="l01026" name="l01026"></a><span class="lineno"> 1026</span><span class="comment">   * specifies the number of multiples of `Ack_delay_time_unit(1)` comprising a packet&#39;s ACK delay.</span></div>
+<div class="line"><a id="l01027" name="l01027"></a><span class="lineno"> 1027</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01028" name="l01028"></a><span class="lineno"> 1028</span><span class="comment">   * An earlier version of `net_flow` used the unit milliseconds and the encoding type uint16_t.  The</span></div>
+<div class="line"><a id="l01029" name="l01029"></a><span class="lineno"> 1029</span><span class="comment">   * reasoning was that this allowed a maximum ACK delay of ~65 sec which should be plenty; and that</span></div>
+<div class="line"><a id="l01030" name="l01030"></a><span class="lineno"> 1030</span><span class="comment">   * the 1-millisecond finegrainedness was acceptable.  However when implementing queue delay-based</span></div>
+<div class="line"><a id="l01031" name="l01031"></a><span class="lineno"> 1031</span><span class="comment">   * congestion control (like FAST or Vegas) we realized it is important for RTTs (which use the ACK</span></div>
+<div class="line"><a id="l01032" name="l01032"></a><span class="lineno"> 1032</span><span class="comment">   * delay value) to be quite precise (microsecond level or so).  Therefore, to be totally safe, we</span></div>
+<div class="line"><a id="l01033" name="l01033"></a><span class="lineno"> 1033</span><span class="comment">   * choose to use the same units as #Fine_duration, which is how we compute all time periods.  As</span></div>
+<div class="line"><a id="l01034" name="l01034"></a><span class="lineno"> 1034</span><span class="comment">   * for the the encoding width, we use 64 bits just in case.</span></div>
+<div class="line"><a id="l01035" name="l01035"></a><span class="lineno"> 1035</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01036" name="l01036"></a><span class="lineno"> 1036</span><span class="comment">   * @todo Reconsider the encoding width.  If `Ack_delay_time_unit(1)` is a nanosecond, then 32 bits</span></div>
+<div class="line"><a id="l01037" name="l01037"></a><span class="lineno"> 1037</span><span class="comment">   * would support a maximum delay of ~4.1 seconds which is likely fine for most real-world</span></div>
+<div class="line"><a id="l01038" name="l01038"></a><span class="lineno"> 1038</span><span class="comment">   * scenarios.  This would reduce the size of ACK packets quite a bit.</span></div>
+<div class="line"><a id="l01039" name="l01039"></a><span class="lineno"> 1039</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01040" name="l01040"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe"> 1040</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">ack_delay_t</a> = uint64_t;</div>
+<div class="line"><a id="l01041" name="l01041"></a><span class="lineno"> 1041</span><span class="comment"></span> </div>
+<div class="line"><a id="l01042" name="l01042"></a><span class="lineno"> 1042</span><span class="comment">  /// `Ack_delay_time_unit(1)` is the duration corresponding to the #ack_delay_t value 1; and proportionally further.</span></div>
+<div class="line"><a id="l01043" name="l01043"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c"> 1043</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c">Ack_delay_time_unit</a> = <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>;</div>
+<div class="line"><a id="l01044" name="l01044"></a><span class="lineno"> 1044</span> </div>
+<div class="line"><a id="l01045" name="l01045"></a><span class="lineno"> 1045</span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">Individual_ack</a>;</div>
+<div class="line"><a id="l01046" name="l01046"></a><span class="lineno"> 1046</span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html">Individual_ack_rexmit_off</a>;</div>
+<div class="line"><a id="l01047" name="l01047"></a><span class="lineno"> 1047</span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html">Individual_ack_rexmit_on</a>;</div>
+<div class="line"><a id="l01048" name="l01048"></a><span class="lineno"> 1048</span> </div>
+<div class="line"><a id="l01049" name="l01049"></a><span class="lineno"> 1049</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l01050" name="l01050"></a><span class="lineno"> 1050</span><span class="comment"></span> </div>
+<div class="line"><a id="l01051" name="l01051"></a><span class="lineno"> 1051</span><span class="comment">  /// Current receive window (remaining Receive buffer size) of the ACK sender.</span></div>
+<div class="line"><a id="l01052" name="l01052"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#a56b2560b87540a3cf5c7bba9e9666641"> 1052</a></span><span class="comment"></span>  <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">rcv_wnd_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet.html#a56b2560b87540a3cf5c7bba9e9666641">m_rcv_wnd</a>;</div>
+<div class="line"><a id="l01053" name="l01053"></a><span class="lineno"> 1053</span><span class="comment"></span> </div>
+<div class="line"><a id="l01054" name="l01054"></a><span class="lineno"> 1054</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01055" name="l01055"></a><span class="lineno"> 1055</span><span class="comment">   * This is the serialized version of `m_rcv_acked_packets_rexmit_{on|off}_out.size()` and</span></div>
+<div class="line"><a id="l01056" name="l01056"></a><span class="lineno"> 1056</span><span class="comment">   * `m_rcv_acked_packets.size()` (whichever is applicable in context).</span></div>
+<div class="line"><a id="l01057" name="l01057"></a><span class="lineno"> 1057</span><span class="comment">   * We send this value, even though it could be figured out from the overall serialized</span></div>
+<div class="line"><a id="l01058" name="l01058"></a><span class="lineno"> 1058</span><span class="comment">   * size, to ensure integrity (see the deserialization logic for details).</span></div>
+<div class="line"><a id="l01059" name="l01059"></a><span class="lineno"> 1059</span><span class="comment">   * This here is set to `size()`, when Low_lvl_packet::serialize_to_raw_data() needs to</span></div>
+<div class="line"><a id="l01060" name="l01060"></a><span class="lineno"> 1060</span><span class="comment">   * serialize that value.  Outside serialization `size()` is used directly, and this</span></div>
+<div class="line"><a id="l01061" name="l01061"></a><span class="lineno"> 1061</span><span class="comment">   * value is meaningless.</span></div>
+<div class="line"><a id="l01062" name="l01062"></a><span class="lineno"> 1062</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01063" name="l01063"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#aae3806ebf76e628494fd6f7681c01409"> 1063</a></span>  <span class="keyword">mutable</span> uint16_t <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet.html#aae3806ebf76e628494fd6f7681c01409">m_rcv_acked_packets_rexmit_out_size</a>;</div>
+<div class="line"><a id="l01064" name="l01064"></a><span class="lineno"> 1064</span> </div>
+<div class="line"><a id="l01065" name="l01065"></a><span class="lineno"> 1065</span>  <span class="comment">// Type checks.</span></div>
+<div class="line"><a id="l01066" name="l01066"></a><span class="lineno"> 1066</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;rcv_wnd_t&gt;::is_integer</div>
+<div class="line"><a id="l01067" name="l01067"></a><span class="lineno"> 1067</span>                  &amp;&amp; (!std::numeric_limits&lt;rcv_wnd_t&gt;::is_signed),</div>
+<div class="line"><a id="l01068" name="l01068"></a><span class="lineno"> 1068</span>                <span class="stringliteral">&quot;rcv_wnd values are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l01069" name="l01069"></a><span class="lineno"> 1069</span><span class="comment"></span> </div>
+<div class="line"><a id="l01070" name="l01070"></a><span class="lineno"> 1070</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01071" name="l01071"></a><span class="lineno"> 1071</span><span class="comment">   * List of *incoming* (post-deserialization of ACK) acknowledgments of DATA packets,</span></div>
+<div class="line"><a id="l01072" name="l01072"></a><span class="lineno"> 1072</span><span class="comment">   * each identified by its first datum&#39;s sequence number as</span></div>
+<div class="line"><a id="l01073" name="l01073"></a><span class="lineno"> 1073</span><span class="comment">   * provided by the other side and ordered in the chronological order they were received.</span></div>
+<div class="line"><a id="l01074" name="l01074"></a><span class="lineno"> 1074</span><span class="comment">   * This may also be empty, in which case the containing ACK acknowledges no DATA packets but only</span></div>
+<div class="line"><a id="l01075" name="l01075"></a><span class="lineno"> 1075</span><span class="comment">   * advertises the current receive window size (#m_rcv_wnd).  (Note that it advertises it if</span></div>
+<div class="line"><a id="l01076" name="l01076"></a><span class="lineno"> 1076</span><span class="comment">   * #m_rcv_acked_packets is NOT empty as well.)</span></div>
+<div class="line"><a id="l01077" name="l01077"></a><span class="lineno"> 1077</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01078" name="l01078"></a><span class="lineno"> 1078</span><span class="comment">   * This is used if and only if this Ack_packet is incoming.  See #m_rcv_acked_packets_rexmit_on_out</span></div>
+<div class="line"><a id="l01079" name="l01079"></a><span class="lineno"> 1079</span><span class="comment">   * and #m_rcv_acked_packets_rexmit_off_out for the outgoing scenario.</span></div>
+<div class="line"><a id="l01080" name="l01080"></a><span class="lineno"> 1080</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01081" name="l01081"></a><span class="lineno"> 1081</span><span class="comment">   * Unlike vanilla TCP from RFC 793, which features cumulative acknowledgment (wherein only the</span></div>
+<div class="line"><a id="l01082" name="l01082"></a><span class="lineno"> 1082</span><span class="comment">   * latest received segment BEFORE any unreceived gap is acknowledged, thus just one total number</span></div>
+<div class="line"><a id="l01083" name="l01083"></a><span class="lineno"> 1083</span><span class="comment">   * in the ACK), and unlike later enhanced TCPs, which feature both cumulative acknowledgement</span></div>
+<div class="line"><a id="l01084" name="l01084"></a><span class="lineno"> 1084</span><span class="comment">   * and individual ACKs (Selective ACKs), we use something similar to Selective ACKs only.  That</span></div>
+<div class="line"><a id="l01085" name="l01085"></a><span class="lineno"> 1085</span><span class="comment">   * is, we only acknowledge each packet individually (though we combine many such little</span></div>
+<div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span><span class="comment">   * acknowledgments into one packet via delayed ACKs).  Moreover, we do not piggy-back ACK info</span></div>
+<div class="line"><a id="l01087" name="l01087"></a><span class="lineno"> 1087</span><span class="comment">   * onto DATA packets; ACK is its own type.</span></div>
+<div class="line"><a id="l01088" name="l01088"></a><span class="lineno"> 1088</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01089" name="l01089"></a><span class="lineno"> 1089</span><span class="comment">   * Rationale for using SACKs only: Selective ACKs help greatly in giving accurate congestion</span></div>
+<div class="line"><a id="l01090" name="l01090"></a><span class="lineno"> 1090</span><span class="comment">   * control data (e.g., ACK delay per packet, dropped packets) and remove complex ambiguities of</span></div>
+<div class="line"><a id="l01091" name="l01091"></a><span class="lineno"> 1091</span><span class="comment">   * trying to interpret cumulative ACKs for that purpose.  For retransmits, when enabled, Selective</span></div>
+<div class="line"><a id="l01092" name="l01092"></a><span class="lineno"> 1092</span><span class="comment">   * ACKs also greatly simplify the design choices (since we know exactly what they don&#39;t have</span></div>
+<div class="line"><a id="l01093" name="l01093"></a><span class="lineno"> 1093</span><span class="comment">   * [assuming no lost ACKs], we can send exactly what they want and no more).</span></div>
+<div class="line"><a id="l01094" name="l01094"></a><span class="lineno"> 1094</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01095" name="l01095"></a><span class="lineno"> 1095</span><span class="comment">   * Rationale for keeping ACK and DATA separate: This is less clear-cut.  It is easier to think</span></div>
+<div class="line"><a id="l01096" name="l01096"></a><span class="lineno"> 1096</span><span class="comment">   * about, certainly, as the two types of traffic aren&#39;t really logically related in a full-duplex</span></div>
+<div class="line"><a id="l01097" name="l01097"></a><span class="lineno"> 1097</span><span class="comment">   * connection.  On the other hand it increases overhead.  On the third hand that disadvantage is</span></div>
+<div class="line"><a id="l01098" name="l01098"></a><span class="lineno"> 1098</span><span class="comment">   * not a big deal assuming mostly unidirectional traffic flow (which is typical), since most of</span></div>
+<div class="line"><a id="l01099" name="l01099"></a><span class="lineno"> 1099</span><span class="comment">   * the time the ACKs would be data-less anyway in that situation.  Delayed ACKs also help combat</span></div>
+<div class="line"><a id="l01100" name="l01100"></a><span class="lineno"> 1100</span><span class="comment">   * overhead -- somewhat.</span></div>
+<div class="line"><a id="l01101" name="l01101"></a><span class="lineno"> 1101</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01102" name="l01102"></a><span class="lineno"> 1102</span><span class="comment">   * Rationale for delayed ACKs a/k/a accumulating more than 1 acknowledgment into an ACK: Combat</span></div>
+<div class="line"><a id="l01103" name="l01103"></a><span class="lineno"> 1103</span><span class="comment">   * overhead which can be a big deal for high bitrate streaming traffic for example (research</span></div>
+<div class="line"><a id="l01104" name="l01104"></a><span class="lineno"> 1104</span><span class="comment">   * shows ACK flow can be 10% of data flow in the other direction).  The cost is that the other</span></div>
+<div class="line"><a id="l01105" name="l01105"></a><span class="lineno"> 1105</span><span class="comment">   * side gets somewhat delayed congestion control information, but the delay can be tuned.  In</span></div>
+<div class="line"><a id="l01106" name="l01106"></a><span class="lineno"> 1106</span><span class="comment">   * TCP implementations delayed ACKs appear to be universal since a long time ago.</span></div>
+<div class="line"><a id="l01107" name="l01107"></a><span class="lineno"> 1107</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01108" name="l01108"></a><span class="lineno"> 1108</span><span class="comment">   * Any two packets represented by these `Individual_ack`s may be duplicates of each other (same</span></div>
+<div class="line"><a id="l01109" name="l01109"></a><span class="lineno"> 1109</span><span class="comment">   * Sequence_number, possibly different delay values).  It&#39;s up to the sender (receiver of ACK)</span></div>
+<div class="line"><a id="l01110" name="l01110"></a><span class="lineno"> 1110</span><span class="comment">   * to sort it out.  However, again, they MUST be ordered chronologicaly based on the time when</span></div>
+<div class="line"><a id="l01111" name="l01111"></a><span class="lineno"> 1111</span><span class="comment">   * they were received; from earliest to latest.</span></div>
+<div class="line"><a id="l01112" name="l01112"></a><span class="lineno"> 1112</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01113" name="l01113"></a><span class="lineno"> 1113</span><span class="comment">   * Storing shared pointers to avoid copying of `struct`s (however small) during internal</span></div>
+<div class="line"><a id="l01114" name="l01114"></a><span class="lineno"> 1114</span><span class="comment">   * reshuffling; shared instead of raw pointers to not worry about `delete`.</span></div>
+<div class="line"><a id="l01115" name="l01115"></a><span class="lineno"> 1115</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01116" name="l01116"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#a232e22e04614ead19fa4531a89838015"> 1116</a></span>  std::vector&lt;boost::shared_ptr&lt;Individual_ack&gt;&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet.html#a232e22e04614ead19fa4531a89838015">m_rcv_acked_packets</a>;</div>
+<div class="line"><a id="l01117" name="l01117"></a><span class="lineno"> 1117</span><span class="comment"></span> </div>
+<div class="line"><a id="l01118" name="l01118"></a><span class="lineno"> 1118</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01119" name="l01119"></a><span class="lineno"> 1119</span><span class="comment">   * Equivalent of #m_rcv_acked_packets but used for *outgoing* (pre-serialization of ACK) acknowledgments</span></div>
+<div class="line"><a id="l01120" name="l01120"></a><span class="lineno"> 1120</span><span class="comment">   * and only if retransmission is disabled.  See notes in Individual_ack_rexmit_off doc header about how</span></div>
+<div class="line"><a id="l01121" name="l01121"></a><span class="lineno"> 1121</span><span class="comment">   * this is used for efficient serialization of Ack_packet.</span></div>
+<div class="line"><a id="l01122" name="l01122"></a><span class="lineno"> 1122</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01123" name="l01123"></a><span class="lineno"> 1123</span><span class="comment">   * This is used if and only if Ack_packet is outgoing, and retransmission is disabled.</span></div>
+<div class="line"><a id="l01124" name="l01124"></a><span class="lineno"> 1124</span><span class="comment">   * See #m_rcv_acked_packets for the incoming scenario.</span></div>
+<div class="line"><a id="l01125" name="l01125"></a><span class="lineno"> 1125</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01126" name="l01126"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#aebad844e9061da02db8f168374869f9e"> 1126</a></span>  std::vector&lt;Individual_ack_rexmit_off&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet.html#aebad844e9061da02db8f168374869f9e">m_rcv_acked_packets_rexmit_off_out</a>;</div>
+<div class="line"><a id="l01127" name="l01127"></a><span class="lineno"> 1127</span><span class="comment"></span> </div>
+<div class="line"><a id="l01128" name="l01128"></a><span class="lineno"> 1128</span><span class="comment">  /// Equivalent of #m_rcv_acked_packets_rexmit_off_out but for retransmission enabled.</span></div>
+<div class="line"><a id="l01129" name="l01129"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#abfcb97c4f3f8552c619b6aba07674063"> 1129</a></span><span class="comment"></span>  std::vector&lt;Individual_ack_rexmit_on&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet.html#abfcb97c4f3f8552c619b6aba07674063">m_rcv_acked_packets_rexmit_on_out</a>;</div>
+<div class="line"><a id="l01130" name="l01130"></a><span class="lineno"> 1130</span><span class="comment"></span> </div>
+<div class="line"><a id="l01131" name="l01131"></a><span class="lineno"> 1131</span><span class="comment">  /// In serialized packet, the type ID byte identifying this as an ACK packet.  Must not equal any other packet type&#39;s.</span></div>
+<div class="line"><a id="l01132" name="l01132"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#aa57707612db973cb99a12ef81f091c38"> 1132</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet.html#aa57707612db973cb99a12ef81f091c38">S_RAW_TYPE_ID</a>;</div>
+<div class="line"><a id="l01133" name="l01133"></a><span class="lineno"> 1133</span> </div>
+<div class="line"><a id="l01134" name="l01134"></a><span class="lineno"> 1134</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l01135" name="l01135"></a><span class="lineno"> 1135</span><span class="comment"></span> </div>
+<div class="line"><a id="l01136" name="l01136"></a><span class="lineno"> 1136</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01137" name="l01137"></a><span class="lineno"> 1137</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l01138" name="l01138"></a><span class="lineno"> 1138</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01139" name="l01139"></a><span class="lineno"> 1139</span><span class="comment">   * @param raw_bufs</span></div>
+<div class="line"><a id="l01140" name="l01140"></a><span class="lineno"> 1140</span><span class="comment">   *        See Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l01141" name="l01141"></a><span class="lineno"> 1141</span><span class="comment">   * @return See Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l01142" name="l01142"></a><span class="lineno"> 1142</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01143" name="l01143"></a><span class="lineno"> 1143</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet.html#a878162c8ec16ab4ee1b3ea4bbe4b51c0">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const override</span>;</div>
+<div class="line"><a id="l01144" name="l01144"></a><span class="lineno"> 1144</span> </div>
+<div class="line"><a id="l01145" name="l01145"></a><span class="lineno"> 1145</span><span class="keyword">private</span>:</div>
+<div class="line"><a id="l01146" name="l01146"></a><span class="lineno"> 1146</span>  <span class="comment">// Friends.</span></div>
+<div class="line"><a id="l01147" name="l01147"></a><span class="lineno"> 1147</span><span class="comment"></span> </div>
+<div class="line"><a id="l01148" name="l01148"></a><span class="lineno"> 1148</span><span class="comment">  /// Friend of Ack_packet: For access to private constructor `Ack_packet(Logger*)`.</span></div>
+<div class="line"><a id="l01149" name="l01149"></a><span class="lineno"> 1149</span><span class="comment"></span>  <span class="comment">// @todo Doxygen complains unless I make the above a Doxygen comment.  In other places it doesn&#39;t complain.  Fix...?</span></div>
+<div class="line"><a id="l01150" name="l01150"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet.html#a88d164cbb8a4166aedc4afcca51048e8"> 1150</a></span>  <span class="keyword">friend</span> boost::shared_ptr&lt;Ack_packet&gt; Low_lvl_packet::create_uninit_packet&lt;Ack_packet&gt;(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>*);</div>
+<div class="line"><a id="l01151" name="l01151"></a><span class="lineno"> 1151</span> </div>
+<div class="line"><a id="l01152" name="l01152"></a><span class="lineno"> 1152</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l01153" name="l01153"></a><span class="lineno"> 1153</span><span class="comment"></span> </div>
+<div class="line"><a id="l01154" name="l01154"></a><span class="lineno"> 1154</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01155" name="l01155"></a><span class="lineno"> 1155</span><span class="comment">   * The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</span></div>
+<div class="line"><a id="l01156" name="l01156"></a><span class="lineno"> 1156</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01157" name="l01157"></a><span class="lineno"> 1157</span><span class="comment">   * @param logger_ptr</span></div>
+<div class="line"><a id="l01158" name="l01158"></a><span class="lineno"> 1158</span><span class="comment">   *        Logger to use subsequently.</span></div>
+<div class="line"><a id="l01159" name="l01159"></a><span class="lineno"> 1159</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01160" name="l01160"></a><span class="lineno"> 1160</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet.html#acef61dca75aa49d653acdfd96b065723">Ack_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
+<div class="line"><a id="l01161" name="l01161"></a><span class="lineno"> 1161</span> </div>
+<div class="line"><a id="l01162" name="l01162"></a><span class="lineno"> 1162</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l01163" name="l01163"></a><span class="lineno"> 1163</span><span class="comment"></span> </div>
+<div class="line"><a id="l01164" name="l01164"></a><span class="lineno"> 1164</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01165" name="l01165"></a><span class="lineno"> 1165</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l01166" name="l01166"></a><span class="lineno"> 1166</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01167" name="l01167"></a><span class="lineno"> 1167</span><span class="comment">   * @param os</span></div>
+<div class="line"><a id="l01168" name="l01168"></a><span class="lineno"> 1168</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
+<div class="line"><a id="l01169" name="l01169"></a><span class="lineno"> 1169</span><span class="comment">   * @param verbose</span></div>
+<div class="line"><a id="l01170" name="l01170"></a><span class="lineno"> 1170</span><span class="comment">   *        See Low_lvl_packet::to_ostream().</span></div>
+<div class="line"><a id="l01171" name="l01171"></a><span class="lineno"> 1171</span><span class="comment">   * @return `os`.</span></div>
+<div class="line"><a id="l01172" name="l01172"></a><span class="lineno"> 1172</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01173" name="l01173"></a><span class="lineno"> 1173</span>  std::ostream&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet.html#a49659e0e672d324ad17e2f4240604b49">to_ostream</a>(std::ostream&amp; os, <span class="keywordtype">bool</span> verbose) <span class="keyword">const override</span>;</div>
+<div class="line"><a id="l01174" name="l01174"></a><span class="lineno"> 1174</span><span class="comment"></span> </div>
+<div class="line"><a id="l01175" name="l01175"></a><span class="lineno"> 1175</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01176" name="l01176"></a><span class="lineno"> 1176</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l01177" name="l01177"></a><span class="lineno"> 1177</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01178" name="l01178"></a><span class="lineno"> 1178</span><span class="comment">   * @param raw_buf</span></div>
+<div class="line"><a id="l01179" name="l01179"></a><span class="lineno"> 1179</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l01180" name="l01180"></a><span class="lineno"> 1180</span><span class="comment">   * @param prefer_no_move</span></div>
+<div class="line"><a id="l01181" name="l01181"></a><span class="lineno"> 1181</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l01182" name="l01182"></a><span class="lineno"> 1182</span><span class="comment">   * @param raw_packet</span></div>
+<div class="line"><a id="l01183" name="l01183"></a><span class="lineno"> 1183</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l01184" name="l01184"></a><span class="lineno"> 1184</span><span class="comment">   * @return See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l01185" name="l01185"></a><span class="lineno"> 1185</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01186" name="l01186"></a><span class="lineno"> 1186</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet.html#a5af95ad4de8253b613d55a99d41cb430">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
+<div class="line"><a id="l01187" name="l01187"></a><span class="lineno"> 1187</span>                                                           <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) <span class="keyword">override</span>;</div>
+<div class="line"><a id="l01188" name="l01188"></a><span class="lineno"> 1188</span>}; <span class="comment">// struct Ack_packet</span></div>
+<div class="line"><a id="l01189" name="l01189"></a><span class="lineno"> 1189</span><span class="comment"></span> </div>
+<div class="line"><a id="l01190" name="l01190"></a><span class="lineno"> 1190</span><span class="comment">/**</span></div>
+<div class="line"><a id="l01191" name="l01191"></a><span class="lineno"> 1191</span><span class="comment"> * Specifies the *incoming* (post-deserialization) acknowledgment of a single received Data_packet.</span></div>
+<div class="line"><a id="l01192" name="l01192"></a><span class="lineno"> 1192</span><span class="comment"> * It is not copyable, and moving them around by smart Individual_ack::Ptr is encouraged.</span></div>
+<div class="line"><a id="l01193" name="l01193"></a><span class="lineno"> 1193</span><span class="comment"> * Construct this by direct member initialization.</span></div>
+<div class="line"><a id="l01194" name="l01194"></a><span class="lineno"> 1194</span><span class="comment"> */</span></div>
+<div class="line"><a id="l01195" name="l01195"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html"> 1195</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">Ack_packet::Individual_ack</a></div>
+<div class="line"><a id="l01196" name="l01196"></a><span class="lineno"> 1196</span>  <span class="comment">// Cannot use boost::noncopyable or Shared_ptr_alias_holder, because that turns off direct initialization.</span></div>
+<div class="line"><a id="l01197" name="l01197"></a><span class="lineno"> 1197</span>{</div>
+<div class="line"><a id="l01198" name="l01198"></a><span class="lineno"> 1198</span>  <span class="comment">// Types.</span></div>
+<div class="line"><a id="l01199" name="l01199"></a><span class="lineno"> 1199</span><span class="comment"></span> </div>
+<div class="line"><a id="l01200" name="l01200"></a><span class="lineno"> 1200</span><span class="comment">  /// Short-hand for ref-counted pointer to mutable objects of this class.</span></div>
+<div class="line"><a id="l01201" name="l01201"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#abbd41e30089125f67667b39f5756c275"> 1201</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#abbd41e30089125f67667b39f5756c275">Ptr</a> = boost::shared_ptr&lt;Individual_ack&gt;;</div>
+<div class="line"><a id="l01202" name="l01202"></a><span class="lineno"> 1202</span><span class="comment"></span> </div>
+<div class="line"><a id="l01203" name="l01203"></a><span class="lineno"> 1203</span><span class="comment">  /// Short-hand for ref-counted pointer to immutable objects of this class.</span></div>
+<div class="line"><a id="l01204" name="l01204"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c"> 1204</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">Const_ptr</a> = boost::shared_ptr&lt;const Individual_ack&gt;;</div>
+<div class="line"><a id="l01205" name="l01205"></a><span class="lineno"> 1205</span> </div>
+<div class="line"><a id="l01206" name="l01206"></a><span class="lineno"> 1206</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l01207" name="l01207"></a><span class="lineno"> 1207</span><span class="comment"></span> </div>
+<div class="line"><a id="l01208" name="l01208"></a><span class="lineno"> 1208</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01209" name="l01209"></a><span class="lineno"> 1209</span><span class="comment">   * Sequence number of first datum in packet that we acknowledge.</span></div>
+<div class="line"><a id="l01210" name="l01210"></a><span class="lineno"> 1210</span><span class="comment">   * This is non-`const` for a technical reason: one must be able to use Sequence_number::set_metadata().</span></div>
+<div class="line"><a id="l01211" name="l01211"></a><span class="lineno"> 1211</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01212" name="l01212"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1d027f817b86cc377d76bc38434229a4"> 1212</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1d027f817b86cc377d76bc38434229a4">m_seq_num</a>;</div>
+<div class="line"><a id="l01213" name="l01213"></a><span class="lineno"> 1213</span><span class="comment"></span> </div>
+<div class="line"><a id="l01214" name="l01214"></a><span class="lineno"> 1214</span><span class="comment">  /// The delay between when we received the acknowledged packet and when decided to send this ack.</span></div>
+<div class="line"><a id="l01215" name="l01215"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a6027b17d0ef0aa619c4dedb42d74e1a6"> 1215</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a6027b17d0ef0aa619c4dedb42d74e1a6">m_delay</a>;</div>
+<div class="line"><a id="l01216" name="l01216"></a><span class="lineno"> 1216</span><span class="comment"></span> </div>
+<div class="line"><a id="l01217" name="l01217"></a><span class="lineno"> 1217</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01218" name="l01218"></a><span class="lineno"> 1218</span><span class="comment">   * Retransmit counter of the acknowledged Data_packet.  Identifies which attempt we are acknowledging</span></div>
+<div class="line"><a id="l01219" name="l01219"></a><span class="lineno"> 1219</span><span class="comment">   * (0 = initial, 1 = first retransmit, 2 = second retransmit, ...).  Literally this equals the acked</span></div>
+<div class="line"><a id="l01220" name="l01220"></a><span class="lineno"> 1220</span><span class="comment">   * Data_packet::m_rexmit_id.  Always 0 if retransmission is disabled for the given socket.</span></div>
+<div class="line"><a id="l01221" name="l01221"></a><span class="lineno"> 1221</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01222" name="l01222"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae17b658ee88e60bdb6606af607b00de2"> 1222</a></span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae17b658ee88e60bdb6606af607b00de2">m_rexmit_id</a>;</div>
+<div class="line"><a id="l01223" name="l01223"></a><span class="lineno"> 1223</span><span class="comment"></span> </div>
+<div class="line"><a id="l01224" name="l01224"></a><span class="lineno"> 1224</span><span class="comment">  /// Make us noncopyable without breaking aggregateness (direct-init).</span></div>
+<div class="line"><a id="l01225" name="l01225"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a589654d5b07e021e82fa80455863f548"> 1225</a></span><span class="comment"></span>  [[no_unique_address]] <a class="code hl_struct" href="structflow_1_1util_1_1Noncopyable.html">util::Noncopyable</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a589654d5b07e021e82fa80455863f548">m_nc</a>{};</div>
+<div class="line"><a id="l01226" name="l01226"></a><span class="lineno"> 1226</span>}; <span class="comment">// struct Ack_packet::Individual_ack</span></div>
+<div class="line"><a id="l01227" name="l01227"></a><span class="lineno"> 1227</span> </div>
+<div class="line"><a id="l01228" name="l01228"></a><span class="lineno"> 1228</span><span class="keyword">static_assert</span>(std::is_aggregate_v&lt;Ack_packet::Individual_ack&gt;,</div>
+<div class="line"><a id="l01229" name="l01229"></a><span class="lineno"> 1229</span>              <span class="stringliteral">&quot;We want it to be direct-initializable.&quot;</span>);</div>
+<div class="line"><a id="l01230" name="l01230"></a><span class="lineno"> 1230</span><span class="keyword">static_assert</span>((!std::is_copy_constructible_v&lt;Ack_packet::Individual_ack&gt;)</div>
+<div class="line"><a id="l01231" name="l01231"></a><span class="lineno"> 1231</span>                &amp;&amp; (!std::is_copy_assignable_v&lt;Ack_packet::Individual_ack&gt;),</div>
+<div class="line"><a id="l01232" name="l01232"></a><span class="lineno"> 1232</span>              <span class="stringliteral">&quot;We want it to be noncopyable but rather passed-around via its ::Ptr.&quot;</span>);</div>
+<div class="line"><a id="l01233" name="l01233"></a><span class="lineno"> 1233</span> </div>
+<div class="line"><a id="l01234" name="l01234"></a><span class="lineno"> 1234</span><span class="preprocessor">#pragma pack(push, 1)</span></div>
+<div class="line"><a id="l01235" name="l01235"></a><span class="lineno"> 1235</span><span class="comment"></span> </div>
+<div class="line"><a id="l01236" name="l01236"></a><span class="lineno"> 1236</span><span class="comment">/**</span></div>
+<div class="line"><a id="l01237" name="l01237"></a><span class="lineno"> 1237</span><span class="comment"> * Specifies the *outgoing* (pre-serialization) acknowledgment of a single received Data_packet, when</span></div>
+<div class="line"><a id="l01238" name="l01238"></a><span class="lineno"> 1238</span><span class="comment"> * retranmission is disabled on the socket.  Assuming network byte order equals native byte order,</span></div>
+<div class="line"><a id="l01239" name="l01239"></a><span class="lineno"> 1239</span><span class="comment"> * and given that tight `struct` field packing is enabled throughout this code, one can arrange a tight</span></div>
+<div class="line"><a id="l01240" name="l01240"></a><span class="lineno"> 1240</span><span class="comment"> * array of these `struct`s and transmit that entire array over the network with no need for scatter/gather</span></div>
+<div class="line"><a id="l01241" name="l01241"></a><span class="lineno"> 1241</span><span class="comment"> * or any additional transformation of data post-construction and pushing onto aforementioned array.</span></div>
+<div class="line"><a id="l01242" name="l01242"></a><span class="lineno"> 1242</span><span class="comment"> * These are copy-constructible, for pushing onto containers and such, but not assignable to avoid unnecessary</span></div>
+<div class="line"><a id="l01243" name="l01243"></a><span class="lineno"> 1243</span><span class="comment"> * copying.  Update: A later version of clang does not like</span></div>
+<div class="line"><a id="l01244" name="l01244"></a><span class="lineno"> 1244</span><span class="comment"> * this technique and warns about it; to avoid any such trouble just forget the non-assignability stuff;</span></div>
+<div class="line"><a id="l01245" name="l01245"></a><span class="lineno"> 1245</span><span class="comment"> * it&#39;s internal code; we should be fine.</span></div>
+<div class="line"><a id="l01246" name="l01246"></a><span class="lineno"> 1246</span><span class="comment"> *</span></div>
+<div class="line"><a id="l01247" name="l01247"></a><span class="lineno"> 1247</span><span class="comment"> * @see Historical note in Ack_packet::serialize_to_raw_data() explains why this and</span></div>
+<div class="line"><a id="l01248" name="l01248"></a><span class="lineno"> 1248</span><span class="comment"> *      Individual_ack_rexmit_on both exist, instead of simply using Individual_ack in both directions.</span></div>
+<div class="line"><a id="l01249" name="l01249"></a><span class="lineno"> 1249</span><span class="comment"> */</span></div>
+<div class="line"><a id="l01250" name="l01250"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html"> 1250</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html">Ack_packet::Individual_ack_rexmit_off</a></div>
+<div class="line"><a id="l01251" name="l01251"></a><span class="lineno"> 1251</span>{</div>
+<div class="line"><a id="l01252" name="l01252"></a><span class="lineno"> 1252</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l01253" name="l01253"></a><span class="lineno"> 1253</span><span class="comment"></span> </div>
+<div class="line"><a id="l01254" name="l01254"></a><span class="lineno"> 1254</span><span class="comment">  /// See Individual_ack::m_seq_num and Sequence_number::raw_num_ref().</span></div>
+<div class="line"><a id="l01255" name="l01255"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#a8952017a9b9267971a8d79eaa82f358a"> 1255</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">Sequence_number::seq_num_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#a8952017a9b9267971a8d79eaa82f358a">m_seq_num_raw</a>;</div>
 <div class="line"><a id="l01256" name="l01256"></a><span class="lineno"> 1256</span><span class="comment"></span> </div>
-<div class="line"><a id="l01257" name="l01257"></a><span class="lineno"> 1257</span><span class="comment">  /// See Individual_ack::m_seq_num and Sequence_number::raw_num_ref().</span></div>
-<div class="line"><a id="l01258" name="l01258"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#a8952017a9b9267971a8d79eaa82f358a"> 1258</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">Sequence_number::seq_num_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#a8952017a9b9267971a8d79eaa82f358a">m_seq_num_raw</a>;</div>
-<div class="line"><a id="l01259" name="l01259"></a><span class="lineno"> 1259</span><span class="comment"></span> </div>
-<div class="line"><a id="l01260" name="l01260"></a><span class="lineno"> 1260</span><span class="comment">  /// See Individual_ack::m_delay; this is in `Ack_delay_time_unit(1)` multiples.</span></div>
-<div class="line"><a id="l01261" name="l01261"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#a9e2f29fb25f50cfb98779eba356882d8"> 1261</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">ack_delay_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#a9e2f29fb25f50cfb98779eba356882d8">m_delay</a>;</div>
-<div class="line"><a id="l01262" name="l01262"></a><span class="lineno"> 1262</span> </div>
-<div class="line"><a id="l01263" name="l01263"></a><span class="lineno"> 1263</span>  <span class="comment">// Type checks.</span></div>
-<div class="line"><a id="l01264" name="l01264"></a><span class="lineno"> 1264</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_integer</div>
-<div class="line"><a id="l01265" name="l01265"></a><span class="lineno"> 1265</span>                  &amp;&amp; (!std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_signed),</div>
-<div class="line"><a id="l01266" name="l01266"></a><span class="lineno"> 1266</span>                <span class="stringliteral">&quot;Raw sequence numbers are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l01267" name="l01267"></a><span class="lineno"> 1267</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;ack_delay_t&gt;::is_integer</div>
-<div class="line"><a id="l01268" name="l01268"></a><span class="lineno"> 1268</span>                  &amp;&amp; (!std::numeric_limits&lt;ack_delay_t&gt;::is_signed),</div>
-<div class="line"><a id="l01269" name="l01269"></a><span class="lineno"> 1269</span>                <span class="stringliteral">&quot;Time periods are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l01270" name="l01270"></a><span class="lineno"> 1270</span> </div>
-<div class="line"><a id="l01271" name="l01271"></a><span class="lineno"> 1271</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l01272" name="l01272"></a><span class="lineno"> 1272</span><span class="comment"></span> </div>
-<div class="line"><a id="l01273" name="l01273"></a><span class="lineno"> 1273</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01274" name="l01274"></a><span class="lineno"> 1274</span><span class="comment">   * Constructs object.</span></div>
-<div class="line"><a id="l01275" name="l01275"></a><span class="lineno"> 1275</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01276" name="l01276"></a><span class="lineno"> 1276</span><span class="comment">   * @param seq_num</span></div>
-<div class="line"><a id="l01277" name="l01277"></a><span class="lineno"> 1277</span><span class="comment">   *        `seq_num.raw_num_ref()` is copied to #m_seq_num_raw.</span></div>
-<div class="line"><a id="l01278" name="l01278"></a><span class="lineno"> 1278</span><span class="comment">   * @param delay</span></div>
-<div class="line"><a id="l01279" name="l01279"></a><span class="lineno"> 1279</span><span class="comment">   *        #m_delay.</span></div>
-<div class="line"><a id="l01280" name="l01280"></a><span class="lineno"> 1280</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01281" name="l01281"></a><span class="lineno"> 1281</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#ab8f16251d8bd583cf6ad114a56b10463">Individual_ack_rexmit_off</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num, <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">ack_delay_t</a> delay);</div>
-<div class="line"><a id="l01282" name="l01282"></a><span class="lineno"> 1282</span>};</div>
-<div class="line"><a id="l01283" name="l01283"></a><span class="lineno"> 1283</span><span class="comment"></span> </div>
-<div class="line"><a id="l01284" name="l01284"></a><span class="lineno"> 1284</span><span class="comment">/// Equivalent of `Individual_ack_rexmit_off` but for sockets with retransmission enabled.</span></div>
-<div class="line"><a id="l01285" name="l01285"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html"> 1285</a></span><span class="comment"></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html">Ack_packet::Individual_ack_rexmit_on</a></div>
-<div class="line"><a id="l01286" name="l01286"></a><span class="lineno"> 1286</span>{</div>
-<div class="line"><a id="l01287" name="l01287"></a><span class="lineno"> 1287</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l01257" name="l01257"></a><span class="lineno"> 1257</span><span class="comment">  /// See Individual_ack::m_delay; this is in `Ack_delay_time_unit(1)` multiples.</span></div>
+<div class="line"><a id="l01258" name="l01258"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#a9e2f29fb25f50cfb98779eba356882d8"> 1258</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">ack_delay_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#a9e2f29fb25f50cfb98779eba356882d8">m_delay</a>;</div>
+<div class="line"><a id="l01259" name="l01259"></a><span class="lineno"> 1259</span> </div>
+<div class="line"><a id="l01260" name="l01260"></a><span class="lineno"> 1260</span>  <span class="comment">// Type checks.</span></div>
+<div class="line"><a id="l01261" name="l01261"></a><span class="lineno"> 1261</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_integer</div>
+<div class="line"><a id="l01262" name="l01262"></a><span class="lineno"> 1262</span>                  &amp;&amp; (!std::numeric_limits&lt;Sequence_number::seq_num_t&gt;::is_signed),</div>
+<div class="line"><a id="l01263" name="l01263"></a><span class="lineno"> 1263</span>                <span class="stringliteral">&quot;Raw sequence numbers are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l01264" name="l01264"></a><span class="lineno"> 1264</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;ack_delay_t&gt;::is_integer</div>
+<div class="line"><a id="l01265" name="l01265"></a><span class="lineno"> 1265</span>                  &amp;&amp; (!std::numeric_limits&lt;ack_delay_t&gt;::is_signed),</div>
+<div class="line"><a id="l01266" name="l01266"></a><span class="lineno"> 1266</span>                <span class="stringliteral">&quot;Time periods are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l01267" name="l01267"></a><span class="lineno"> 1267</span> </div>
+<div class="line"><a id="l01268" name="l01268"></a><span class="lineno"> 1268</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l01269" name="l01269"></a><span class="lineno"> 1269</span><span class="comment"></span> </div>
+<div class="line"><a id="l01270" name="l01270"></a><span class="lineno"> 1270</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01271" name="l01271"></a><span class="lineno"> 1271</span><span class="comment">   * Constructs object.</span></div>
+<div class="line"><a id="l01272" name="l01272"></a><span class="lineno"> 1272</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01273" name="l01273"></a><span class="lineno"> 1273</span><span class="comment">   * @param seq_num</span></div>
+<div class="line"><a id="l01274" name="l01274"></a><span class="lineno"> 1274</span><span class="comment">   *        `seq_num.raw_num_ref()` is copied to #m_seq_num_raw.</span></div>
+<div class="line"><a id="l01275" name="l01275"></a><span class="lineno"> 1275</span><span class="comment">   * @param delay</span></div>
+<div class="line"><a id="l01276" name="l01276"></a><span class="lineno"> 1276</span><span class="comment">   *        #m_delay.</span></div>
+<div class="line"><a id="l01277" name="l01277"></a><span class="lineno"> 1277</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01278" name="l01278"></a><span class="lineno"> 1278</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#ab8f16251d8bd583cf6ad114a56b10463">Individual_ack_rexmit_off</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num, <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">ack_delay_t</a> delay);</div>
+<div class="line"><a id="l01279" name="l01279"></a><span class="lineno"> 1279</span>};</div>
+<div class="line"><a id="l01280" name="l01280"></a><span class="lineno"> 1280</span><span class="comment"></span> </div>
+<div class="line"><a id="l01281" name="l01281"></a><span class="lineno"> 1281</span><span class="comment">/// Equivalent of `Individual_ack_rexmit_off` but for sockets with retransmission enabled.</span></div>
+<div class="line"><a id="l01282" name="l01282"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html"> 1282</a></span><span class="comment"></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html">Ack_packet::Individual_ack_rexmit_on</a></div>
+<div class="line"><a id="l01283" name="l01283"></a><span class="lineno"> 1283</span>{</div>
+<div class="line"><a id="l01284" name="l01284"></a><span class="lineno"> 1284</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l01285" name="l01285"></a><span class="lineno"> 1285</span><span class="comment"></span> </div>
+<div class="line"><a id="l01286" name="l01286"></a><span class="lineno"> 1286</span><span class="comment">  /// Stores the values applicable to both Individual_ack_rexmit_off and Individual_ack_rexmit_on.</span></div>
+<div class="line"><a id="l01287" name="l01287"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#ac0ea55d7d5847c4e892ef0e590bd580e"> 1287</a></span><span class="comment"></span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html">Individual_ack_rexmit_off</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#ac0ea55d7d5847c4e892ef0e590bd580e">m_basic_ack</a>;</div>
 <div class="line"><a id="l01288" name="l01288"></a><span class="lineno"> 1288</span><span class="comment"></span> </div>
-<div class="line"><a id="l01289" name="l01289"></a><span class="lineno"> 1289</span><span class="comment">  /// Stores the values applicable to both Individual_ack_rexmit_off and Individual_ack_rexmit_on.</span></div>
-<div class="line"><a id="l01290" name="l01290"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#ac0ea55d7d5847c4e892ef0e590bd580e"> 1290</a></span><span class="comment"></span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html">Individual_ack_rexmit_off</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#ac0ea55d7d5847c4e892ef0e590bd580e">m_basic_ack</a>;</div>
-<div class="line"><a id="l01291" name="l01291"></a><span class="lineno"> 1291</span><span class="comment"></span> </div>
-<div class="line"><a id="l01292" name="l01292"></a><span class="lineno"> 1292</span><span class="comment">  /// See Individual_ack::m_rexmit_id but note the type difference.</span></div>
-<div class="line"><a id="l01293" name="l01293"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#a0324b8de1d20023e10507d527ee93cfe"> 1293</a></span><span class="comment"></span>  <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Data__packet.html#abba220658ada68bae04c9c2ebd06f72c">Data_packet::rexmit_id_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#a0324b8de1d20023e10507d527ee93cfe">m_rexmit_id</a>;</div>
-<div class="line"><a id="l01294" name="l01294"></a><span class="lineno"> 1294</span> </div>
-<div class="line"><a id="l01295" name="l01295"></a><span class="lineno"> 1295</span>  <span class="comment">// Type checks.</span></div>
-<div class="line"><a id="l01296" name="l01296"></a><span class="lineno"> 1296</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;rexmit_id_t&gt;::is_integer</div>
-<div class="line"><a id="l01297" name="l01297"></a><span class="lineno"> 1297</span>                  &amp;&amp; (!std::numeric_limits&lt;rexmit_id_t&gt;::is_signed),</div>
-<div class="line"><a id="l01298" name="l01298"></a><span class="lineno"> 1298</span>                <span class="stringliteral">&quot;Retransmission IDs are non-negative integers.&quot;</span>);</div>
-<div class="line"><a id="l01299" name="l01299"></a><span class="lineno"> 1299</span> </div>
-<div class="line"><a id="l01300" name="l01300"></a><span class="lineno"> 1300</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l01301" name="l01301"></a><span class="lineno"> 1301</span><span class="comment"></span> </div>
-<div class="line"><a id="l01302" name="l01302"></a><span class="lineno"> 1302</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01303" name="l01303"></a><span class="lineno"> 1303</span><span class="comment">   * Constructs object.</span></div>
-<div class="line"><a id="l01304" name="l01304"></a><span class="lineno"> 1304</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01305" name="l01305"></a><span class="lineno"> 1305</span><span class="comment">   * @param seq_num</span></div>
-<div class="line"><a id="l01306" name="l01306"></a><span class="lineno"> 1306</span><span class="comment">   *        Individual_ack_rexmit_off::m_seq_num.</span></div>
-<div class="line"><a id="l01307" name="l01307"></a><span class="lineno"> 1307</span><span class="comment">   * @param rexmit_id</span></div>
-<div class="line"><a id="l01308" name="l01308"></a><span class="lineno"> 1308</span><span class="comment">   *        #m_rexmit_id.</span></div>
-<div class="line"><a id="l01309" name="l01309"></a><span class="lineno"> 1309</span><span class="comment">   * @param delay</span></div>
-<div class="line"><a id="l01310" name="l01310"></a><span class="lineno"> 1310</span><span class="comment">   *        Individual_ack_rexmit_off::m_delay.</span></div>
-<div class="line"><a id="l01311" name="l01311"></a><span class="lineno"> 1311</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01312" name="l01312"></a><span class="lineno"> 1312</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#ac75ea2d2954f67520dd4ed4c800c06c8">Individual_ack_rexmit_on</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rexmit_id, <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">ack_delay_t</a> delay);</div>
-<div class="line"><a id="l01313" name="l01313"></a><span class="lineno"> 1313</span>};</div>
-<div class="line"><a id="l01314" name="l01314"></a><span class="lineno"> 1314</span> </div>
-<div class="line"><a id="l01315" name="l01315"></a><span class="lineno"> 1315</span><span class="preprocessor">#pragma pack(pop)</span></div>
-<div class="line"><a id="l01316" name="l01316"></a><span class="lineno"> 1316</span><span class="comment"></span> </div>
-<div class="line"><a id="l01317" name="l01317"></a><span class="lineno"> 1317</span><span class="comment">/**</span></div>
-<div class="line"><a id="l01318" name="l01318"></a><span class="lineno"> 1318</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level RST packet.</span></div>
-<div class="line"><a id="l01319" name="l01319"></a><span class="lineno"> 1319</span><span class="comment"> * See Low_lvl_packet doc header for information common to all low-level packets including this one.</span></div>
-<div class="line"><a id="l01320" name="l01320"></a><span class="lineno"> 1320</span><span class="comment"> *</span></div>
-<div class="line"><a id="l01321" name="l01321"></a><span class="lineno"> 1321</span><span class="comment"> * An RST means the sender is immediately shutting down the connection without waiting for any</span></div>
-<div class="line"><a id="l01322" name="l01322"></a><span class="lineno"> 1322</span><span class="comment"> * feedback from the receiver and is recommending that the latter do the same ASAP.  This is sent in</span></div>
-<div class="line"><a id="l01323" name="l01323"></a><span class="lineno"> 1323</span><span class="comment"> * a variety of error situations.</span></div>
-<div class="line"><a id="l01324" name="l01324"></a><span class="lineno"> 1324</span><span class="comment"> *</span></div>
-<div class="line"><a id="l01325" name="l01325"></a><span class="lineno"> 1325</span><span class="comment"> * Implemementation notes</span></div>
-<div class="line"><a id="l01326" name="l01326"></a><span class="lineno"> 1326</span><span class="comment"> * ----------------------</span></div>
-<div class="line"><a id="l01327" name="l01327"></a><span class="lineno"> 1327</span><span class="comment"> * The one peculiar thing about Rst_packet is it contains no data beyond the super-`struct` Low_lvl_packet,</span></div>
-<div class="line"><a id="l01328" name="l01328"></a><span class="lineno"> 1328</span><span class="comment"> * other than the fact it *is* an Rst_packet (i.e., its `typeid()` identifies it as such).  Thus its</span></div>
-<div class="line"><a id="l01329" name="l01329"></a><span class="lineno"> 1329</span><span class="comment"> * various `virtual` methods are typically either simple or even don&#39;t exist and defer to the Low_lvl_packet</span></div>
-<div class="line"><a id="l01330" name="l01330"></a><span class="lineno"> 1330</span><span class="comment"> * implementation.</span></div>
-<div class="line"><a id="l01331" name="l01331"></a><span class="lineno"> 1331</span><span class="comment"> */</span></div>
-<div class="line"><a id="l01332" name="l01332"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Rst__packet.html"> 1332</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Rst__packet.html">Rst_packet</a> : <span class="keyword">public</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a></div>
-<div class="line"><a id="l01333" name="l01333"></a><span class="lineno"> 1333</span>{</div>
-<div class="line"><a id="l01334" name="l01334"></a><span class="lineno"> 1334</span> </div>
-<div class="line"><a id="l01335" name="l01335"></a><span class="lineno"> 1335</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l01336" name="l01336"></a><span class="lineno"> 1336</span><span class="comment"></span> </div>
-<div class="line"><a id="l01337" name="l01337"></a><span class="lineno"> 1337</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01338" name="l01338"></a><span class="lineno"> 1338</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l01339" name="l01339"></a><span class="lineno"> 1339</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01340" name="l01340"></a><span class="lineno"> 1340</span><span class="comment">   * @param raw_bufs</span></div>
-<div class="line"><a id="l01341" name="l01341"></a><span class="lineno"> 1341</span><span class="comment">   *        See Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l01342" name="l01342"></a><span class="lineno"> 1342</span><span class="comment">   * @return See Low_lvl_packet::serialize_to_raw_data().</span></div>
-<div class="line"><a id="l01343" name="l01343"></a><span class="lineno"> 1343</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01344" name="l01344"></a><span class="lineno"> 1344</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Rst__packet.html#a06e98008f816699dcd5c8890914a6b3f">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const override</span>;</div>
-<div class="line"><a id="l01345" name="l01345"></a><span class="lineno"> 1345</span> </div>
-<div class="line"><a id="l01346" name="l01346"></a><span class="lineno"> 1346</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l01347" name="l01347"></a><span class="lineno"> 1347</span><span class="comment"></span> </div>
-<div class="line"><a id="l01348" name="l01348"></a><span class="lineno"> 1348</span><span class="comment">  /// In serialized packet, the type ID byte identifying this as an RST packet.  Must not equal any other packet type&#39;s.</span></div>
-<div class="line"><a id="l01349" name="l01349"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Rst__packet.html#a915e6803b36ae470e585b1bc90622079"> 1349</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Rst__packet.html#a915e6803b36ae470e585b1bc90622079">S_RAW_TYPE_ID</a>;</div>
-<div class="line"><a id="l01350" name="l01350"></a><span class="lineno"> 1350</span> </div>
-<div class="line"><a id="l01351" name="l01351"></a><span class="lineno"> 1351</span><span class="keyword">private</span>:</div>
-<div class="line"><a id="l01352" name="l01352"></a><span class="lineno"> 1352</span>  <span class="comment">// Friends.</span></div>
-<div class="line"><a id="l01353" name="l01353"></a><span class="lineno"> 1353</span><span class="comment"></span> </div>
-<div class="line"><a id="l01354" name="l01354"></a><span class="lineno"> 1354</span><span class="comment">  /// Friend of Rst_packet: For access to private constructor `Rst_packet(Logger*)`.</span></div>
-<div class="line"><a id="l01355" name="l01355"></a><span class="lineno"> 1355</span><span class="comment"></span>  <span class="comment">// @todo Doxygen complains unless I make the above a Doxygen comment.  In other places it doesn&#39;t complain.  Fix...?</span></div>
-<div class="line"><a id="l01356" name="l01356"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Rst__packet.html#aff60ca2747f412e64354ae0bd90b4126"> 1356</a></span>  <span class="keyword">friend</span> boost::shared_ptr&lt;Rst_packet&gt; Low_lvl_packet::create_uninit_packet&lt;Rst_packet&gt;(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>*);</div>
-<div class="line"><a id="l01357" name="l01357"></a><span class="lineno"> 1357</span> </div>
-<div class="line"><a id="l01358" name="l01358"></a><span class="lineno"> 1358</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l01359" name="l01359"></a><span class="lineno"> 1359</span><span class="comment"></span> </div>
-<div class="line"><a id="l01360" name="l01360"></a><span class="lineno"> 1360</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01361" name="l01361"></a><span class="lineno"> 1361</span><span class="comment">   * The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</span></div>
-<div class="line"><a id="l01362" name="l01362"></a><span class="lineno"> 1362</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01363" name="l01363"></a><span class="lineno"> 1363</span><span class="comment">   * @param logger_ptr</span></div>
-<div class="line"><a id="l01364" name="l01364"></a><span class="lineno"> 1364</span><span class="comment">   *        Logger to use subsequently.</span></div>
-<div class="line"><a id="l01365" name="l01365"></a><span class="lineno"> 1365</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01366" name="l01366"></a><span class="lineno"> 1366</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Rst__packet.html#a171bf247cad883b73b4b76957dfe4994">Rst_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
-<div class="line"><a id="l01367" name="l01367"></a><span class="lineno"> 1367</span> </div>
-<div class="line"><a id="l01368" name="l01368"></a><span class="lineno"> 1368</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l01369" name="l01369"></a><span class="lineno"> 1369</span><span class="comment"></span> </div>
-<div class="line"><a id="l01370" name="l01370"></a><span class="lineno"> 1370</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01371" name="l01371"></a><span class="lineno"> 1371</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
-<div class="line"><a id="l01372" name="l01372"></a><span class="lineno"> 1372</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01373" name="l01373"></a><span class="lineno"> 1373</span><span class="comment">   * @param raw_buf</span></div>
-<div class="line"><a id="l01374" name="l01374"></a><span class="lineno"> 1374</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l01375" name="l01375"></a><span class="lineno"> 1375</span><span class="comment">   * @param prefer_no_move</span></div>
-<div class="line"><a id="l01376" name="l01376"></a><span class="lineno"> 1376</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l01377" name="l01377"></a><span class="lineno"> 1377</span><span class="comment">   * @param raw_packet</span></div>
-<div class="line"><a id="l01378" name="l01378"></a><span class="lineno"> 1378</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l01379" name="l01379"></a><span class="lineno"> 1379</span><span class="comment">   * @return See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
-<div class="line"><a id="l01380" name="l01380"></a><span class="lineno"> 1380</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01381" name="l01381"></a><span class="lineno"> 1381</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Rst__packet.html#ae1292deb7eec0f01d3ff111977ff5693">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
-<div class="line"><a id="l01382" name="l01382"></a><span class="lineno"> 1382</span>                                                           <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) <span class="keyword">override</span>;</div>
-<div class="line"><a id="l01383" name="l01383"></a><span class="lineno"> 1383</span>}; <span class="comment">// struct Rst_packet</span></div>
-<div class="line"><a id="l01384" name="l01384"></a><span class="lineno"> 1384</span> </div>
-<div class="line"><a id="l01385" name="l01385"></a><span class="lineno"> 1385</span><span class="comment">// Template and constexpr implementations.</span></div>
-<div class="line"><a id="l01386" name="l01386"></a><span class="lineno"> 1386</span> </div>
-<div class="line"><a id="l01387" name="l01387"></a><span class="lineno"> 1387</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Low_lvl_packet_sub&gt;</div>
-<div class="line"><a id="l01388" name="l01388"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a09f0f187521ec2275885d68b7f6e734a"> 1388</a></span>boost::shared_ptr&lt;Low_lvl_packet_sub&gt; <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a09f0f187521ec2275885d68b7f6e734a">Low_lvl_packet::create_uninit_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger) <span class="comment">// Static.</span></div>
-<div class="line"><a id="l01389" name="l01389"></a><span class="lineno"> 1389</span>{</div>
-<div class="line"><a id="l01390" name="l01390"></a><span class="lineno"> 1390</span>  <span class="keyword">using </span>boost::shared_ptr;</div>
-<div class="line"><a id="l01391" name="l01391"></a><span class="lineno"> 1391</span> </div>
-<div class="line"><a id="l01392" name="l01392"></a><span class="lineno"> 1392</span>  <span class="comment">// Note: Low_lvl_packet_sub is not Low_lvl_packet. It is a sub-type: Syn_packet, Ack_packet, etc. We&#39;re a template.</span></div>
-<div class="line"><a id="l01393" name="l01393"></a><span class="lineno"> 1393</span> </div>
-<div class="line"><a id="l01394" name="l01394"></a><span class="lineno"> 1394</span>  <span class="comment">// `friend` relation required to be able to call this private constructor.</span></div>
-<div class="line"><a id="l01395" name="l01395"></a><span class="lineno"> 1395</span>  <span class="keywordflow">return</span> shared_ptr&lt;Low_lvl_packet_sub&gt;(<span class="keyword">new</span> Low_lvl_packet_sub(logger));</div>
-<div class="line"><a id="l01396" name="l01396"></a><span class="lineno"> 1396</span>}</div>
-<div class="line"><a id="l01397" name="l01397"></a><span class="lineno"> 1397</span> </div>
-<div class="line"><a id="l01398" name="l01398"></a><span class="lineno"> 1398</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Low_lvl_packet_sub&gt;</div>
-<div class="line"><a id="l01399" name="l01399"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a64981689c6d162131889bd90ef003279"> 1399</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Low_lvl_packet::Ptr</a> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a64981689c6d162131889bd90ef003279">Low_lvl_packet::create_uninit_packet_base</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger) <span class="comment">// Static.</span></div>
-<div class="line"><a id="l01400" name="l01400"></a><span class="lineno"> 1400</span>{</div>
-<div class="line"><a id="l01401" name="l01401"></a><span class="lineno"> 1401</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(create_uninit_packet&lt;Low_lvl_packet_sub&gt;(logger));</div>
-<div class="line"><a id="l01402" name="l01402"></a><span class="lineno"> 1402</span>}</div>
-<div class="line"><a id="l01403" name="l01403"></a><span class="lineno"> 1403</span> </div>
-<div class="line"><a id="l01404" name="l01404"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a57c06fd2d0b1c3ac058c13f9081067f0"> 1404</a></span><span class="keyword">constexpr</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a57c06fd2d0b1c3ac058c13f9081067f0">Low_lvl_packet::native_is_big_endian</a>() <span class="comment">// Static.</span></div>
-<div class="line"><a id="l01405" name="l01405"></a><span class="lineno"> 1405</span>{</div>
-<div class="line"><a id="l01406" name="l01406"></a><span class="lineno"> 1406</span>  <span class="keyword">using </span>boost::endian::native_to_big;</div>
-<div class="line"><a id="l01407" name="l01407"></a><span class="lineno"> 1407</span> </div>
-<div class="line"><a id="l01408" name="l01408"></a><span class="lineno"> 1408</span>  <span class="keyword">constexpr</span> uint16_t TEST_VAL = 0x0102;</div>
-<div class="line"><a id="l01409" name="l01409"></a><span class="lineno"> 1409</span>  <span class="keywordflow">return</span> native_to_big(TEST_VAL) == TEST_VAL;</div>
-<div class="line"><a id="l01410" name="l01410"></a><span class="lineno"> 1410</span>}</div>
-<div class="line"><a id="l01411" name="l01411"></a><span class="lineno"> 1411</span> </div>
-<div class="line"><a id="l01412" name="l01412"></a><span class="lineno"> 1412</span>} <span class="comment">// namespace flow::net_flow</span></div>
+<div class="line"><a id="l01289" name="l01289"></a><span class="lineno"> 1289</span><span class="comment">  /// See Individual_ack::m_rexmit_id but note the type difference.</span></div>
+<div class="line"><a id="l01290" name="l01290"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#a0324b8de1d20023e10507d527ee93cfe"> 1290</a></span><span class="comment"></span>  <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Data__packet.html#abba220658ada68bae04c9c2ebd06f72c">Data_packet::rexmit_id_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#a0324b8de1d20023e10507d527ee93cfe">m_rexmit_id</a>;</div>
+<div class="line"><a id="l01291" name="l01291"></a><span class="lineno"> 1291</span> </div>
+<div class="line"><a id="l01292" name="l01292"></a><span class="lineno"> 1292</span>  <span class="comment">// Type checks.</span></div>
+<div class="line"><a id="l01293" name="l01293"></a><span class="lineno"> 1293</span>  <span class="keyword">static_assert</span>(std::numeric_limits&lt;rexmit_id_t&gt;::is_integer</div>
+<div class="line"><a id="l01294" name="l01294"></a><span class="lineno"> 1294</span>                  &amp;&amp; (!std::numeric_limits&lt;rexmit_id_t&gt;::is_signed),</div>
+<div class="line"><a id="l01295" name="l01295"></a><span class="lineno"> 1295</span>                <span class="stringliteral">&quot;Retransmission IDs are non-negative integers.&quot;</span>);</div>
+<div class="line"><a id="l01296" name="l01296"></a><span class="lineno"> 1296</span> </div>
+<div class="line"><a id="l01297" name="l01297"></a><span class="lineno"> 1297</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l01298" name="l01298"></a><span class="lineno"> 1298</span><span class="comment"></span> </div>
+<div class="line"><a id="l01299" name="l01299"></a><span class="lineno"> 1299</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01300" name="l01300"></a><span class="lineno"> 1300</span><span class="comment">   * Constructs object.</span></div>
+<div class="line"><a id="l01301" name="l01301"></a><span class="lineno"> 1301</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01302" name="l01302"></a><span class="lineno"> 1302</span><span class="comment">   * @param seq_num</span></div>
+<div class="line"><a id="l01303" name="l01303"></a><span class="lineno"> 1303</span><span class="comment">   *        Individual_ack_rexmit_off::m_seq_num.</span></div>
+<div class="line"><a id="l01304" name="l01304"></a><span class="lineno"> 1304</span><span class="comment">   * @param rexmit_id</span></div>
+<div class="line"><a id="l01305" name="l01305"></a><span class="lineno"> 1305</span><span class="comment">   *        #m_rexmit_id.</span></div>
+<div class="line"><a id="l01306" name="l01306"></a><span class="lineno"> 1306</span><span class="comment">   * @param delay</span></div>
+<div class="line"><a id="l01307" name="l01307"></a><span class="lineno"> 1307</span><span class="comment">   *        Individual_ack_rexmit_off::m_delay.</span></div>
+<div class="line"><a id="l01308" name="l01308"></a><span class="lineno"> 1308</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01309" name="l01309"></a><span class="lineno"> 1309</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#ac75ea2d2954f67520dd4ed4c800c06c8">Individual_ack_rexmit_on</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rexmit_id, <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">ack_delay_t</a> delay);</div>
+<div class="line"><a id="l01310" name="l01310"></a><span class="lineno"> 1310</span>};</div>
+<div class="line"><a id="l01311" name="l01311"></a><span class="lineno"> 1311</span> </div>
+<div class="line"><a id="l01312" name="l01312"></a><span class="lineno"> 1312</span><span class="preprocessor">#pragma pack(pop)</span></div>
+<div class="line"><a id="l01313" name="l01313"></a><span class="lineno"> 1313</span><span class="comment"></span> </div>
+<div class="line"><a id="l01314" name="l01314"></a><span class="lineno"> 1314</span><span class="comment">/**</span></div>
+<div class="line"><a id="l01315" name="l01315"></a><span class="lineno"> 1315</span><span class="comment"> * Internal `net_flow` `struct` that encapsulates the Flow-protocol low-level RST packet.</span></div>
+<div class="line"><a id="l01316" name="l01316"></a><span class="lineno"> 1316</span><span class="comment"> * See Low_lvl_packet doc header for information common to all low-level packets including this one.</span></div>
+<div class="line"><a id="l01317" name="l01317"></a><span class="lineno"> 1317</span><span class="comment"> *</span></div>
+<div class="line"><a id="l01318" name="l01318"></a><span class="lineno"> 1318</span><span class="comment"> * An RST means the sender is immediately shutting down the connection without waiting for any</span></div>
+<div class="line"><a id="l01319" name="l01319"></a><span class="lineno"> 1319</span><span class="comment"> * feedback from the receiver and is recommending that the latter do the same ASAP.  This is sent in</span></div>
+<div class="line"><a id="l01320" name="l01320"></a><span class="lineno"> 1320</span><span class="comment"> * a variety of error situations.</span></div>
+<div class="line"><a id="l01321" name="l01321"></a><span class="lineno"> 1321</span><span class="comment"> *</span></div>
+<div class="line"><a id="l01322" name="l01322"></a><span class="lineno"> 1322</span><span class="comment"> * Implemementation notes</span></div>
+<div class="line"><a id="l01323" name="l01323"></a><span class="lineno"> 1323</span><span class="comment"> * ----------------------</span></div>
+<div class="line"><a id="l01324" name="l01324"></a><span class="lineno"> 1324</span><span class="comment"> * The one peculiar thing about Rst_packet is it contains no data beyond the super-`struct` Low_lvl_packet,</span></div>
+<div class="line"><a id="l01325" name="l01325"></a><span class="lineno"> 1325</span><span class="comment"> * other than the fact it *is* an Rst_packet (i.e., its `typeid()` identifies it as such).  Thus its</span></div>
+<div class="line"><a id="l01326" name="l01326"></a><span class="lineno"> 1326</span><span class="comment"> * various `virtual` methods are typically either simple or even don&#39;t exist and defer to the Low_lvl_packet</span></div>
+<div class="line"><a id="l01327" name="l01327"></a><span class="lineno"> 1327</span><span class="comment"> * implementation.</span></div>
+<div class="line"><a id="l01328" name="l01328"></a><span class="lineno"> 1328</span><span class="comment"> */</span></div>
+<div class="line"><a id="l01329" name="l01329"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Rst__packet.html"> 1329</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Rst__packet.html">Rst_packet</a> : <span class="keyword">public</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Low__lvl__packet.html">Low_lvl_packet</a></div>
+<div class="line"><a id="l01330" name="l01330"></a><span class="lineno"> 1330</span>{</div>
+<div class="line"><a id="l01331" name="l01331"></a><span class="lineno"> 1331</span> </div>
+<div class="line"><a id="l01332" name="l01332"></a><span class="lineno"> 1332</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l01333" name="l01333"></a><span class="lineno"> 1333</span><span class="comment"></span> </div>
+<div class="line"><a id="l01334" name="l01334"></a><span class="lineno"> 1334</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01335" name="l01335"></a><span class="lineno"> 1335</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l01336" name="l01336"></a><span class="lineno"> 1336</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01337" name="l01337"></a><span class="lineno"> 1337</span><span class="comment">   * @param raw_bufs</span></div>
+<div class="line"><a id="l01338" name="l01338"></a><span class="lineno"> 1338</span><span class="comment">   *        See Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l01339" name="l01339"></a><span class="lineno"> 1339</span><span class="comment">   * @return See Low_lvl_packet::serialize_to_raw_data().</span></div>
+<div class="line"><a id="l01340" name="l01340"></a><span class="lineno"> 1340</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01341" name="l01341"></a><span class="lineno"> 1341</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Rst__packet.html#a06e98008f816699dcd5c8890914a6b3f">serialize_to_raw_data</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">Const_buffer_sequence</a>* raw_bufs) <span class="keyword">const override</span>;</div>
+<div class="line"><a id="l01342" name="l01342"></a><span class="lineno"> 1342</span> </div>
+<div class="line"><a id="l01343" name="l01343"></a><span class="lineno"> 1343</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l01344" name="l01344"></a><span class="lineno"> 1344</span><span class="comment"></span> </div>
+<div class="line"><a id="l01345" name="l01345"></a><span class="lineno"> 1345</span><span class="comment">  /// In serialized packet, the type ID byte identifying this as an RST packet.  Must not equal any other packet type&#39;s.</span></div>
+<div class="line"><a id="l01346" name="l01346"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Rst__packet.html#a915e6803b36ae470e585b1bc90622079"> 1346</a></span><span class="comment"></span>  <span class="keyword">static</span> <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">uint8_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Rst__packet.html#a915e6803b36ae470e585b1bc90622079">S_RAW_TYPE_ID</a>;</div>
+<div class="line"><a id="l01347" name="l01347"></a><span class="lineno"> 1347</span> </div>
+<div class="line"><a id="l01348" name="l01348"></a><span class="lineno"> 1348</span><span class="keyword">private</span>:</div>
+<div class="line"><a id="l01349" name="l01349"></a><span class="lineno"> 1349</span>  <span class="comment">// Friends.</span></div>
+<div class="line"><a id="l01350" name="l01350"></a><span class="lineno"> 1350</span><span class="comment"></span> </div>
+<div class="line"><a id="l01351" name="l01351"></a><span class="lineno"> 1351</span><span class="comment">  /// Friend of Rst_packet: For access to private constructor `Rst_packet(Logger*)`.</span></div>
+<div class="line"><a id="l01352" name="l01352"></a><span class="lineno"> 1352</span><span class="comment"></span>  <span class="comment">// @todo Doxygen complains unless I make the above a Doxygen comment.  In other places it doesn&#39;t complain.  Fix...?</span></div>
+<div class="line"><a id="l01353" name="l01353"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Rst__packet.html#aff60ca2747f412e64354ae0bd90b4126"> 1353</a></span>  <span class="keyword">friend</span> boost::shared_ptr&lt;Rst_packet&gt; Low_lvl_packet::create_uninit_packet&lt;Rst_packet&gt;(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>*);</div>
+<div class="line"><a id="l01354" name="l01354"></a><span class="lineno"> 1354</span> </div>
+<div class="line"><a id="l01355" name="l01355"></a><span class="lineno"> 1355</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l01356" name="l01356"></a><span class="lineno"> 1356</span><span class="comment"></span> </div>
+<div class="line"><a id="l01357" name="l01357"></a><span class="lineno"> 1357</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01358" name="l01358"></a><span class="lineno"> 1358</span><span class="comment">   * The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</span></div>
+<div class="line"><a id="l01359" name="l01359"></a><span class="lineno"> 1359</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01360" name="l01360"></a><span class="lineno"> 1360</span><span class="comment">   * @param logger_ptr</span></div>
+<div class="line"><a id="l01361" name="l01361"></a><span class="lineno"> 1361</span><span class="comment">   *        Logger to use subsequently.</span></div>
+<div class="line"><a id="l01362" name="l01362"></a><span class="lineno"> 1362</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01363" name="l01363"></a><span class="lineno"> 1363</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Rst__packet.html#a171bf247cad883b73b4b76957dfe4994">Rst_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr);</div>
+<div class="line"><a id="l01364" name="l01364"></a><span class="lineno"> 1364</span> </div>
+<div class="line"><a id="l01365" name="l01365"></a><span class="lineno"> 1365</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l01366" name="l01366"></a><span class="lineno"> 1366</span><span class="comment"></span> </div>
+<div class="line"><a id="l01367" name="l01367"></a><span class="lineno"> 1367</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01368" name="l01368"></a><span class="lineno"> 1368</span><span class="comment">   * Implements Low_lvl_packet API.  See that super-method&#39;s doc header.</span></div>
+<div class="line"><a id="l01369" name="l01369"></a><span class="lineno"> 1369</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01370" name="l01370"></a><span class="lineno"> 1370</span><span class="comment">   * @param raw_buf</span></div>
+<div class="line"><a id="l01371" name="l01371"></a><span class="lineno"> 1371</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l01372" name="l01372"></a><span class="lineno"> 1372</span><span class="comment">   * @param prefer_no_move</span></div>
+<div class="line"><a id="l01373" name="l01373"></a><span class="lineno"> 1373</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l01374" name="l01374"></a><span class="lineno"> 1374</span><span class="comment">   * @param raw_packet</span></div>
+<div class="line"><a id="l01375" name="l01375"></a><span class="lineno"> 1375</span><span class="comment">   *        See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l01376" name="l01376"></a><span class="lineno"> 1376</span><span class="comment">   * @return See Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet().</span></div>
+<div class="line"><a id="l01377" name="l01377"></a><span class="lineno"> 1377</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01378" name="l01378"></a><span class="lineno"> 1378</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Rst__packet.html#ae1292deb7eec0f01d3ff111977ff5693">deserialize_type_specific_data_from_raw_data_packet</a>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">Const_buffer</a>* raw_buf,</div>
+<div class="line"><a id="l01379" name="l01379"></a><span class="lineno"> 1379</span>                                                           <span class="keywordtype">bool</span> prefer_no_move, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* raw_packet) <span class="keyword">override</span>;</div>
+<div class="line"><a id="l01380" name="l01380"></a><span class="lineno"> 1380</span>}; <span class="comment">// struct Rst_packet</span></div>
+<div class="line"><a id="l01381" name="l01381"></a><span class="lineno"> 1381</span> </div>
+<div class="line"><a id="l01382" name="l01382"></a><span class="lineno"> 1382</span><span class="comment">// Template and constexpr implementations.</span></div>
+<div class="line"><a id="l01383" name="l01383"></a><span class="lineno"> 1383</span> </div>
+<div class="line"><a id="l01384" name="l01384"></a><span class="lineno"> 1384</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Low_lvl_packet_sub&gt;</div>
+<div class="line"><a id="l01385" name="l01385"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a09f0f187521ec2275885d68b7f6e734a"> 1385</a></span>boost::shared_ptr&lt;Low_lvl_packet_sub&gt; <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a09f0f187521ec2275885d68b7f6e734a">Low_lvl_packet::create_uninit_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger) <span class="comment">// Static.</span></div>
+<div class="line"><a id="l01386" name="l01386"></a><span class="lineno"> 1386</span>{</div>
+<div class="line"><a id="l01387" name="l01387"></a><span class="lineno"> 1387</span>  <span class="keyword">using </span>boost::shared_ptr;</div>
+<div class="line"><a id="l01388" name="l01388"></a><span class="lineno"> 1388</span> </div>
+<div class="line"><a id="l01389" name="l01389"></a><span class="lineno"> 1389</span>  <span class="comment">// Note: Low_lvl_packet_sub is not Low_lvl_packet. It is a sub-type: Syn_packet, Ack_packet, etc. We&#39;re a template.</span></div>
+<div class="line"><a id="l01390" name="l01390"></a><span class="lineno"> 1390</span> </div>
+<div class="line"><a id="l01391" name="l01391"></a><span class="lineno"> 1391</span>  <span class="comment">// `friend` relation required to be able to call this private constructor.</span></div>
+<div class="line"><a id="l01392" name="l01392"></a><span class="lineno"> 1392</span>  <span class="keywordflow">return</span> shared_ptr&lt;Low_lvl_packet_sub&gt;(<span class="keyword">new</span> Low_lvl_packet_sub(logger));</div>
+<div class="line"><a id="l01393" name="l01393"></a><span class="lineno"> 1393</span>}</div>
+<div class="line"><a id="l01394" name="l01394"></a><span class="lineno"> 1394</span> </div>
+<div class="line"><a id="l01395" name="l01395"></a><span class="lineno"> 1395</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Low_lvl_packet_sub&gt;</div>
+<div class="line"><a id="l01396" name="l01396"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a64981689c6d162131889bd90ef003279"> 1396</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Low_lvl_packet::Ptr</a> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a64981689c6d162131889bd90ef003279">Low_lvl_packet::create_uninit_packet_base</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger) <span class="comment">// Static.</span></div>
+<div class="line"><a id="l01397" name="l01397"></a><span class="lineno"> 1397</span>{</div>
+<div class="line"><a id="l01398" name="l01398"></a><span class="lineno"> 1398</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(create_uninit_packet&lt;Low_lvl_packet_sub&gt;(logger));</div>
+<div class="line"><a id="l01399" name="l01399"></a><span class="lineno"> 1399</span>}</div>
+<div class="line"><a id="l01400" name="l01400"></a><span class="lineno"> 1400</span> </div>
+<div class="line"><a id="l01401" name="l01401"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a57c06fd2d0b1c3ac058c13f9081067f0"> 1401</a></span><span class="keyword">constexpr</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a57c06fd2d0b1c3ac058c13f9081067f0">Low_lvl_packet::native_is_big_endian</a>() <span class="comment">// Static.</span></div>
+<div class="line"><a id="l01402" name="l01402"></a><span class="lineno"> 1402</span>{</div>
+<div class="line"><a id="l01403" name="l01403"></a><span class="lineno"> 1403</span>  <span class="keyword">using </span>boost::endian::native_to_big;</div>
+<div class="line"><a id="l01404" name="l01404"></a><span class="lineno"> 1404</span> </div>
+<div class="line"><a id="l01405" name="l01405"></a><span class="lineno"> 1405</span>  <span class="keyword">constexpr</span> uint16_t TEST_VAL = 0x0102;</div>
+<div class="line"><a id="l01406" name="l01406"></a><span class="lineno"> 1406</span>  <span class="keywordflow">return</span> native_to_big(TEST_VAL) == TEST_VAL;</div>
+<div class="line"><a id="l01407" name="l01407"></a><span class="lineno"> 1407</span>}</div>
+<div class="line"><a id="l01408" name="l01408"></a><span class="lineno"> 1408</span> </div>
+<div class="line"><a id="l01409" name="l01409"></a><span class="lineno"> 1409</span>} <span class="comment">// namespace flow::net_flow</span></div>
 <div class="ttc" id="ablob_8hpp_html"><div class="ttname"><a href="blob_8hpp.html">blob.hpp</a></div></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Log__context_html"><div class="ttname"><a href="classflow_1_1log_1_1Log__context.html">flow::log::Log_context</a></div><div class="ttdoc">Convenience class that simply stores a Logger and/or Component passed into a constructor; and returns...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01618">log.hpp:1619</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Logger_html"><div class="ttname"><a href="classflow_1_1log_1_1Logger.html">flow::log::Logger</a></div><div class="ttdoc">Interface that the user should implement, passing the implementing Logger into logging classes (Flow'...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01287">log.hpp:1291</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html">flow::net_flow::Sequence_number</a></div><div class="ttdoc">An internal net_flow sequence number identifying a piece of data.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00125">seq_num.hpp:126</a></div></div>
@@ -1497,124 +1494,123 @@
 <div class="ttc" id="anamespaceflow_1_1net__flow_html"><div class="ttname"><a href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div><div class="ttdoc">Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8cpp_source.html#l00024">node.cpp:25</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_a079d8cd87a68d1c5f04c6bce71f0061d"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow::net_flow::flow_port_t</a></div><div class="ttdeci">uint16_t flow_port_t</div><div class="ttdoc">Logical Flow port type (analogous to a UDP/TCP port in spirit but in no way relevant to UDP/TCP).</div><div class="ttdef"><b>Definition:</b> <a href="net__flow__fwd_8hpp_source.html#l00054">net_flow_fwd.hpp:54</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af09888b3a8feaff209b6625e493bc338"><div class="ttname"><a href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">flow::util::Blob</a></div><div class="ttdeci">Blob_with_log_context&lt;&gt; Blob</div><div class="ttdoc">A concrete Blob_with_log_context that compile-time-disables Basic_blob::share() and the sharing API d...</div><div class="ttdef"><b>Definition:</b> <a href="blob__fwd_8hpp_source.html#l00060">blob_fwd.hpp:60</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00386">common.hpp:386</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00391">common.hpp:391</a></div></div>
 <div class="ttc" id="anet__flow__fwd_8hpp_html"><div class="ttname"><a href="net__flow__fwd_8hpp.html">net_flow_fwd.hpp</a></div></div>
 <div class="ttc" id="aseq__num_8hpp_html"><div class="ttname"><a href="seq__num_8hpp.html">seq_num.hpp</a></div></div>
 <div class="ttc" id="ashared__ptr__alias__holder_8hpp_html"><div class="ttname"><a href="shared__ptr__alias__holder_8hpp.html">shared_ptr_alias_holder.hpp</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html">flow::net_flow::Ack_packet::Individual_ack_rexmit_off</a></div><div class="ttdoc">Specifies the outgoing (pre-serialization) acknowledgment of a single received Data_packet,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01253">low_lvl_packet.hpp:1254</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off_html_a8952017a9b9267971a8d79eaa82f358a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#a8952017a9b9267971a8d79eaa82f358a">flow::net_flow::Ack_packet::Individual_ack_rexmit_off::m_seq_num_raw</a></div><div class="ttdeci">const Sequence_number::seq_num_t m_seq_num_raw</div><div class="ttdoc">See Individual_ack::m_seq_num and Sequence_number::raw_num_ref().</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01258">low_lvl_packet.hpp:1258</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off_html_a9e2f29fb25f50cfb98779eba356882d8"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#a9e2f29fb25f50cfb98779eba356882d8">flow::net_flow::Ack_packet::Individual_ack_rexmit_off::m_delay</a></div><div class="ttdeci">const ack_delay_t m_delay</div><div class="ttdoc">See Individual_ack::m_delay; this is in Ack_delay_time_unit(1) multiples.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01261">low_lvl_packet.hpp:1261</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html">flow::net_flow::Ack_packet::Individual_ack_rexmit_off</a></div><div class="ttdoc">Specifies the outgoing (pre-serialization) acknowledgment of a single received Data_packet,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01250">low_lvl_packet.hpp:1251</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off_html_a8952017a9b9267971a8d79eaa82f358a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#a8952017a9b9267971a8d79eaa82f358a">flow::net_flow::Ack_packet::Individual_ack_rexmit_off::m_seq_num_raw</a></div><div class="ttdeci">const Sequence_number::seq_num_t m_seq_num_raw</div><div class="ttdoc">See Individual_ack::m_seq_num and Sequence_number::raw_num_ref().</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01255">low_lvl_packet.hpp:1255</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off_html_a9e2f29fb25f50cfb98779eba356882d8"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#a9e2f29fb25f50cfb98779eba356882d8">flow::net_flow::Ack_packet::Individual_ack_rexmit_off::m_delay</a></div><div class="ttdeci">const ack_delay_t m_delay</div><div class="ttdoc">See Individual_ack::m_delay; this is in Ack_delay_time_unit(1) multiples.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01258">low_lvl_packet.hpp:1258</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off_html_ab8f16251d8bd583cf6ad114a56b10463"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html#ab8f16251d8bd583cf6ad114a56b10463">flow::net_flow::Ack_packet::Individual_ack_rexmit_off::Individual_ack_rexmit_off</a></div><div class="ttdeci">Individual_ack_rexmit_off(const Sequence_number &amp;seq_num, ack_delay_t delay)</div><div class="ttdoc">Constructs object.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l01060">low_lvl_packet.cpp:1060</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html">flow::net_flow::Ack_packet::Individual_ack_rexmit_on</a></div><div class="ttdoc">Equivalent of Individual_ack_rexmit_off but for sockets with retransmission enabled.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01285">low_lvl_packet.hpp:1286</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on_html_a0324b8de1d20023e10507d527ee93cfe"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#a0324b8de1d20023e10507d527ee93cfe">flow::net_flow::Ack_packet::Individual_ack_rexmit_on::m_rexmit_id</a></div><div class="ttdeci">Data_packet::rexmit_id_t m_rexmit_id</div><div class="ttdoc">See Individual_ack::m_rexmit_id but note the type difference.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01293">low_lvl_packet.hpp:1293</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on_html_ac0ea55d7d5847c4e892ef0e590bd580e"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#ac0ea55d7d5847c4e892ef0e590bd580e">flow::net_flow::Ack_packet::Individual_ack_rexmit_on::m_basic_ack</a></div><div class="ttdeci">Individual_ack_rexmit_off m_basic_ack</div><div class="ttdoc">Stores the values applicable to both Individual_ack_rexmit_off and Individual_ack_rexmit_on.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01290">low_lvl_packet.hpp:1290</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html">flow::net_flow::Ack_packet::Individual_ack_rexmit_on</a></div><div class="ttdoc">Equivalent of Individual_ack_rexmit_off but for sockets with retransmission enabled.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01282">low_lvl_packet.hpp:1283</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on_html_a0324b8de1d20023e10507d527ee93cfe"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#a0324b8de1d20023e10507d527ee93cfe">flow::net_flow::Ack_packet::Individual_ack_rexmit_on::m_rexmit_id</a></div><div class="ttdeci">Data_packet::rexmit_id_t m_rexmit_id</div><div class="ttdoc">See Individual_ack::m_rexmit_id but note the type difference.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01290">low_lvl_packet.hpp:1290</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on_html_ac0ea55d7d5847c4e892ef0e590bd580e"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#ac0ea55d7d5847c4e892ef0e590bd580e">flow::net_flow::Ack_packet::Individual_ack_rexmit_on::m_basic_ack</a></div><div class="ttdeci">Individual_ack_rexmit_off m_basic_ack</div><div class="ttdoc">Stores the values applicable to both Individual_ack_rexmit_off and Individual_ack_rexmit_on.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01287">low_lvl_packet.hpp:1287</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on_html_ac75ea2d2954f67520dd4ed4c800c06c8"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html#ac75ea2d2954f67520dd4ed4c800c06c8">flow::net_flow::Ack_packet::Individual_ack_rexmit_on::Individual_ack_rexmit_on</a></div><div class="ttdeci">Individual_ack_rexmit_on(const Sequence_number &amp;seq_num, unsigned int rexmit_id, ack_delay_t delay)</div><div class="ttdoc">Constructs object.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l01068">low_lvl_packet.cpp:1068</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></div><div class="ttdoc">Specifies the incoming (post-deserialization) acknowledgment of a single received Data_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01194">low_lvl_packet.hpp:1196</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a1cfc30a36e8b572f3cedaf045b05f448"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1cfc30a36e8b572f3cedaf045b05f448">flow::net_flow::Ack_packet::Individual_ack::Individual_ack</a></div><div class="ttdeci">Individual_ack()=delete</div><div class="ttdoc">Force direct member initialization even if no member is const.</div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a1d027f817b86cc377d76bc38434229a4"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1d027f817b86cc377d76bc38434229a4">flow::net_flow::Ack_packet::Individual_ack::m_seq_num</a></div><div class="ttdeci">Sequence_number m_seq_num</div><div class="ttdoc">Sequence number of first datum in packet that we acknowledge.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01211">low_lvl_packet.hpp:1211</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a3fc4ecbc56e28b299a4bd70325d313a0"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a3fc4ecbc56e28b299a4bd70325d313a0">flow::net_flow::Ack_packet::Individual_ack::operator=</a></div><div class="ttdeci">void operator=(const Individual_ack &amp;)=delete</div><div class="ttdoc">Forbid copy assignment.</div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a55bebcb04b4cc192e38023e58bfd761c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">flow::net_flow::Ack_packet::Individual_ack::Const_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; const Individual_ack &gt; Const_ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to immutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01203">low_lvl_packet.hpp:1203</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a6027b17d0ef0aa619c4dedb42d74e1a6"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a6027b17d0ef0aa619c4dedb42d74e1a6">flow::net_flow::Ack_packet::Individual_ack::m_delay</a></div><div class="ttdeci">const Fine_duration m_delay</div><div class="ttdoc">The delay between when we received the acknowledged packet and when decided to send this ack.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01214">low_lvl_packet.hpp:1214</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_abbd41e30089125f67667b39f5756c275"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#abbd41e30089125f67667b39f5756c275">flow::net_flow::Ack_packet::Individual_ack::Ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Individual_ack &gt; Ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to mutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01200">low_lvl_packet.hpp:1200</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_ae17b658ee88e60bdb6606af607b00de2"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae17b658ee88e60bdb6606af607b00de2">flow::net_flow::Ack_packet::Individual_ack::m_rexmit_id</a></div><div class="ttdeci">const unsigned int m_rexmit_id</div><div class="ttdoc">Retransmit counter of the acknowledged Data_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01221">low_lvl_packet.hpp:1221</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_ae557559e4c611fafc3d43a19fb161316"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae557559e4c611fafc3d43a19fb161316">flow::net_flow::Ack_packet::Individual_ack::Individual_ack</a></div><div class="ttdeci">Individual_ack(const Individual_ack &amp;)=delete</div><div class="ttdoc">Forbid copy construction.</div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html">flow::net_flow::Ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01019">low_lvl_packet.hpp:1020</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a232e22e04614ead19fa4531a89838015"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a232e22e04614ead19fa4531a89838015">flow::net_flow::Ack_packet::m_rcv_acked_packets</a></div><div class="ttdeci">std::vector&lt; boost::shared_ptr&lt; Individual_ack &gt; &gt; m_rcv_acked_packets</div><div class="ttdoc">List of incoming (post-deserialization of ACK) acknowledgments of DATA packets, each identified by it...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01115">low_lvl_packet.hpp:1115</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a374da5eef60c7d8a4085b41cf7b2adfe"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">flow::net_flow::Ack_packet::ack_delay_t</a></div><div class="ttdeci">uint64_t ack_delay_t</div><div class="ttdoc">Type used to store the ACK delay for a given individual acknowledged packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01039">low_lvl_packet.hpp:1039</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></div><div class="ttdoc">Specifies the incoming (post-deserialization) acknowledgment of a single received Data_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01195">low_lvl_packet.hpp:1197</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a1d027f817b86cc377d76bc38434229a4"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1d027f817b86cc377d76bc38434229a4">flow::net_flow::Ack_packet::Individual_ack::m_seq_num</a></div><div class="ttdeci">Sequence_number m_seq_num</div><div class="ttdoc">Sequence number of first datum in packet that we acknowledge.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01212">low_lvl_packet.hpp:1212</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a55bebcb04b4cc192e38023e58bfd761c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">flow::net_flow::Ack_packet::Individual_ack::Const_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; const Individual_ack &gt; Const_ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to immutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01204">low_lvl_packet.hpp:1204</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a589654d5b07e021e82fa80455863f548"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a589654d5b07e021e82fa80455863f548">flow::net_flow::Ack_packet::Individual_ack::m_nc</a></div><div class="ttdeci">util::Noncopyable m_nc</div><div class="ttdoc">Make us noncopyable without breaking aggregateness (direct-init).</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01225">low_lvl_packet.hpp:1225</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a6027b17d0ef0aa619c4dedb42d74e1a6"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a6027b17d0ef0aa619c4dedb42d74e1a6">flow::net_flow::Ack_packet::Individual_ack::m_delay</a></div><div class="ttdeci">const Fine_duration m_delay</div><div class="ttdoc">The delay between when we received the acknowledged packet and when decided to send this ack.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01215">low_lvl_packet.hpp:1215</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_abbd41e30089125f67667b39f5756c275"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#abbd41e30089125f67667b39f5756c275">flow::net_flow::Ack_packet::Individual_ack::Ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Individual_ack &gt; Ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to mutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01201">low_lvl_packet.hpp:1201</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_ae17b658ee88e60bdb6606af607b00de2"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae17b658ee88e60bdb6606af607b00de2">flow::net_flow::Ack_packet::Individual_ack::m_rexmit_id</a></div><div class="ttdeci">const unsigned int m_rexmit_id</div><div class="ttdoc">Retransmit counter of the acknowledged Data_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01222">low_lvl_packet.hpp:1222</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html">flow::net_flow::Ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01020">low_lvl_packet.hpp:1021</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a232e22e04614ead19fa4531a89838015"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a232e22e04614ead19fa4531a89838015">flow::net_flow::Ack_packet::m_rcv_acked_packets</a></div><div class="ttdeci">std::vector&lt; boost::shared_ptr&lt; Individual_ack &gt; &gt; m_rcv_acked_packets</div><div class="ttdoc">List of incoming (post-deserialization of ACK) acknowledgments of DATA packets, each identified by it...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01116">low_lvl_packet.hpp:1116</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a374da5eef60c7d8a4085b41cf7b2adfe"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">flow::net_flow::Ack_packet::ack_delay_t</a></div><div class="ttdeci">uint64_t ack_delay_t</div><div class="ttdoc">Type used to store the ACK delay for a given individual acknowledged packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01040">low_lvl_packet.hpp:1040</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a49659e0e672d324ad17e2f4240604b49"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a49659e0e672d324ad17e2f4240604b49">flow::net_flow::Ack_packet::to_ostream</a></div><div class="ttdeci">std::ostream &amp; to_ostream(std::ostream &amp;os, bool verbose) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00996">low_lvl_packet.cpp:996</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a56b2560b87540a3cf5c7bba9e9666641"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a56b2560b87540a3cf5c7bba9e9666641">flow::net_flow::Ack_packet::m_rcv_wnd</a></div><div class="ttdeci">rcv_wnd_t m_rcv_wnd</div><div class="ttdoc">Current receive window (remaining Receive buffer size) of the ACK sender.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01051">low_lvl_packet.hpp:1051</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a56b2560b87540a3cf5c7bba9e9666641"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a56b2560b87540a3cf5c7bba9e9666641">flow::net_flow::Ack_packet::m_rcv_wnd</a></div><div class="ttdeci">rcv_wnd_t m_rcv_wnd</div><div class="ttdoc">Current receive window (remaining Receive buffer size) of the ACK sender.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01052">low_lvl_packet.hpp:1052</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a5af95ad4de8253b613d55a99d41cb430"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a5af95ad4de8253b613d55a99d41cb430">flow::net_flow::Ack_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet) override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00785">low_lvl_packet.cpp:785</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a878162c8ec16ab4ee1b3ea4bbe4b51c0"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a878162c8ec16ab4ee1b3ea4bbe4b51c0">flow::net_flow::Ack_packet::serialize_to_raw_data</a></div><div class="ttdeci">size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00321">low_lvl_packet.cpp:321</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_aa57707612db973cb99a12ef81f091c38"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#aa57707612db973cb99a12ef81f091c38">flow::net_flow::Ack_packet::S_RAW_TYPE_ID</a></div><div class="ttdeci">static const uint8_t S_RAW_TYPE_ID</div><div class="ttdoc">In serialized packet, the type ID byte identifying this as an ACK packet. Must not equal any other pa...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01131">low_lvl_packet.hpp:1131</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_aae3806ebf76e628494fd6f7681c01409"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#aae3806ebf76e628494fd6f7681c01409">flow::net_flow::Ack_packet::m_rcv_acked_packets_rexmit_out_size</a></div><div class="ttdeci">uint16_t m_rcv_acked_packets_rexmit_out_size</div><div class="ttdoc">This is the serialized version of m_rcv_acked_packets_rexmit_{on|off}_out.size() and m_rcv_acked_pack...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01062">low_lvl_packet.hpp:1062</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_abd3bc7f9e9195bf1b4aca2cad881646c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c">flow::net_flow::Ack_packet::Ack_delay_time_unit</a></div><div class="ttdeci">Fine_duration Ack_delay_time_unit</div><div class="ttdoc">Ack_delay_time_unit(1) is the duration corresponding to the ack_delay_t value 1; and proportionally f...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01042">low_lvl_packet.hpp:1042</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_abfcb97c4f3f8552c619b6aba07674063"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#abfcb97c4f3f8552c619b6aba07674063">flow::net_flow::Ack_packet::m_rcv_acked_packets_rexmit_on_out</a></div><div class="ttdeci">std::vector&lt; Individual_ack_rexmit_on &gt; m_rcv_acked_packets_rexmit_on_out</div><div class="ttdoc">Equivalent of m_rcv_acked_packets_rexmit_off_out but for retransmission enabled.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01128">low_lvl_packet.hpp:1128</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_aa57707612db973cb99a12ef81f091c38"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#aa57707612db973cb99a12ef81f091c38">flow::net_flow::Ack_packet::S_RAW_TYPE_ID</a></div><div class="ttdeci">static const uint8_t S_RAW_TYPE_ID</div><div class="ttdoc">In serialized packet, the type ID byte identifying this as an ACK packet. Must not equal any other pa...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01132">low_lvl_packet.hpp:1132</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_aae3806ebf76e628494fd6f7681c01409"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#aae3806ebf76e628494fd6f7681c01409">flow::net_flow::Ack_packet::m_rcv_acked_packets_rexmit_out_size</a></div><div class="ttdeci">uint16_t m_rcv_acked_packets_rexmit_out_size</div><div class="ttdoc">This is the serialized version of m_rcv_acked_packets_rexmit_{on|off}_out.size() and m_rcv_acked_pack...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01063">low_lvl_packet.hpp:1063</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_abd3bc7f9e9195bf1b4aca2cad881646c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c">flow::net_flow::Ack_packet::Ack_delay_time_unit</a></div><div class="ttdeci">Fine_duration Ack_delay_time_unit</div><div class="ttdoc">Ack_delay_time_unit(1) is the duration corresponding to the ack_delay_t value 1; and proportionally f...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01043">low_lvl_packet.hpp:1043</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_abfcb97c4f3f8552c619b6aba07674063"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#abfcb97c4f3f8552c619b6aba07674063">flow::net_flow::Ack_packet::m_rcv_acked_packets_rexmit_on_out</a></div><div class="ttdeci">std::vector&lt; Individual_ack_rexmit_on &gt; m_rcv_acked_packets_rexmit_on_out</div><div class="ttdoc">Equivalent of m_rcv_acked_packets_rexmit_off_out but for retransmission enabled.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01129">low_lvl_packet.hpp:1129</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_acef61dca75aa49d653acdfd96b065723"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#acef61dca75aa49d653acdfd96b065723">flow::net_flow::Ack_packet::Ack_packet</a></div><div class="ttdeci">Ack_packet(log::Logger *logger_ptr)</div><div class="ttdoc">The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00096">low_lvl_packet.cpp:96</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_aebad844e9061da02db8f168374869f9e"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#aebad844e9061da02db8f168374869f9e">flow::net_flow::Ack_packet::m_rcv_acked_packets_rexmit_off_out</a></div><div class="ttdeci">std::vector&lt; Individual_ack_rexmit_off &gt; m_rcv_acked_packets_rexmit_off_out</div><div class="ttdoc">Equivalent of m_rcv_acked_packets but used for outgoing (pre-serialization of ACK) acknowledgments an...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01125">low_lvl_packet.hpp:1125</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html">flow::net_flow::Data_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level DATA packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00892">low_lvl_packet.hpp:893</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a07cf37a89d947f40354a79a885407567"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a07cf37a89d947f40354a79a885407567">flow::net_flow::Data_packet::m_data_size_raw</a></div><div class="ttdeci">uint16_t m_data_size_raw</div><div class="ttdoc">This is the serialized version of m_data.size() (see m_data).</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00925">low_lvl_packet.hpp:925</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_aebad844e9061da02db8f168374869f9e"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#aebad844e9061da02db8f168374869f9e">flow::net_flow::Ack_packet::m_rcv_acked_packets_rexmit_off_out</a></div><div class="ttdeci">std::vector&lt; Individual_ack_rexmit_off &gt; m_rcv_acked_packets_rexmit_off_out</div><div class="ttdoc">Equivalent of m_rcv_acked_packets but used for outgoing (pre-serialization of ACK) acknowledgments an...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01126">low_lvl_packet.hpp:1126</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html">flow::net_flow::Data_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level DATA packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00893">low_lvl_packet.hpp:894</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a07cf37a89d947f40354a79a885407567"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a07cf37a89d947f40354a79a885407567">flow::net_flow::Data_packet::m_data_size_raw</a></div><div class="ttdeci">uint16_t m_data_size_raw</div><div class="ttdoc">This is the serialized version of m_data.size() (see m_data).</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00926">low_lvl_packet.hpp:926</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a0bfa19b23164c8189c05d3c2417cf23b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a0bfa19b23164c8189c05d3c2417cf23b">flow::net_flow::Data_packet::to_ostream</a></div><div class="ttdeci">std::ostream &amp; to_ostream(std::ostream &amp;os, bool verbose) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00968">low_lvl_packet.cpp:968</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a0c5cb656fd8fd513d66a349285558900"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a0c5cb656fd8fd513d66a349285558900">flow::net_flow::Data_packet::Data_packet</a></div><div class="ttdeci">Data_packet(log::Logger *logger_ptr)</div><div class="ttdoc">The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00088">low_lvl_packet.cpp:88</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a463336b35dde27c250b477ca35adb7d4"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a463336b35dde27c250b477ca35adb7d4">flow::net_flow::Data_packet::S_RAW_TYPE_ID</a></div><div class="ttdeci">static const uint8_t S_RAW_TYPE_ID</div><div class="ttdoc">In serialized packet, the type ID byte identifying this as a DATA packet. Must not equal any other pa...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00944">low_lvl_packet.hpp:944</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a94d817529e94ac88ee2cea6f3dd1badb"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a94d817529e94ac88ee2cea6f3dd1badb">flow::net_flow::Data_packet::m_seq_num</a></div><div class="ttdeci">Sequence_number m_seq_num</div><div class="ttdoc">The sequence number of the first byte in the payload; i.e., of m_data.front(), a/k/a m_data[0].</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00910">low_lvl_packet.hpp:910</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_abba220658ada68bae04c9c2ebd06f72c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#abba220658ada68bae04c9c2ebd06f72c">flow::net_flow::Data_packet::rexmit_id_t</a></div><div class="ttdeci">uint8_t rexmit_id_t</div><div class="ttdoc">Type used to store the retransmission count in DATA and ACK packets.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00902">low_lvl_packet.hpp:902</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_ac149f87b8915213857c707b0f3562ef0"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#ac149f87b8915213857c707b0f3562ef0">flow::net_flow::Data_packet::m_rexmit_id</a></div><div class="ttdeci">rexmit_id_t m_rexmit_id</div><div class="ttdoc">Retransmit counter of the DATA packet being sent.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00916">low_lvl_packet.hpp:916</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a463336b35dde27c250b477ca35adb7d4"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a463336b35dde27c250b477ca35adb7d4">flow::net_flow::Data_packet::S_RAW_TYPE_ID</a></div><div class="ttdeci">static const uint8_t S_RAW_TYPE_ID</div><div class="ttdoc">In serialized packet, the type ID byte identifying this as a DATA packet. Must not equal any other pa...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00945">low_lvl_packet.hpp:945</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_a94d817529e94ac88ee2cea6f3dd1badb"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#a94d817529e94ac88ee2cea6f3dd1badb">flow::net_flow::Data_packet::m_seq_num</a></div><div class="ttdeci">Sequence_number m_seq_num</div><div class="ttdoc">The sequence number of the first byte in the payload; i.e., of m_data.front(), a/k/a m_data[0].</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00911">low_lvl_packet.hpp:911</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_abba220658ada68bae04c9c2ebd06f72c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#abba220658ada68bae04c9c2ebd06f72c">flow::net_flow::Data_packet::rexmit_id_t</a></div><div class="ttdeci">uint8_t rexmit_id_t</div><div class="ttdoc">Type used to store the retransmission count in DATA and ACK packets.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00903">low_lvl_packet.hpp:903</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_ac149f87b8915213857c707b0f3562ef0"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#ac149f87b8915213857c707b0f3562ef0">flow::net_flow::Data_packet::m_rexmit_id</a></div><div class="ttdeci">rexmit_id_t m_rexmit_id</div><div class="ttdoc">Retransmit counter of the DATA packet being sent.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00917">low_lvl_packet.hpp:917</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_ac2a390c4cb7abfeec7c658c866dbfc06"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#ac2a390c4cb7abfeec7c658c866dbfc06">flow::net_flow::Data_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet) override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00655">low_lvl_packet.cpp:655</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_ad76ae289cd958d62bb5cd29b9f9e894d"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d">flow::net_flow::Data_packet::m_data</a></div><div class="ttdeci">util::Blob m_data</div><div class="ttdoc">The payload.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00933">low_lvl_packet.hpp:933</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_ad76ae289cd958d62bb5cd29b9f9e894d"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d">flow::net_flow::Data_packet::m_data</a></div><div class="ttdeci">util::Blob m_data</div><div class="ttdoc">The payload.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00934">low_lvl_packet.hpp:934</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html_add582f24dd9442f987f2c458e4b5d3d7"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html#add582f24dd9442f987f2c458e4b5d3d7">flow::net_flow::Data_packet::serialize_to_raw_data</a></div><div class="ttdeci">size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00279">low_lvl_packet.cpp:279</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html">flow::net_flow::Low_lvl_packet::Aux_raw_data</a></div><div class="ttdoc">Helper data store type for storing binary data needed by serialize_to_raw_data(), when certains bits ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00438">low_lvl_packet.hpp:440</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data_html_a22799fa7c7948cc2f35a411523c12479"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a22799fa7c7948cc2f35a411523c12479">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_opt_rexmit_on_raw</a></div><div class="ttdeci">uint8_t m_opt_rexmit_on_raw</div><div class="ttdoc">This is the serialized version of the multi-byte bool Low_lvl_packet::m_opt_rexmit_on.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00447">low_lvl_packet.hpp:447</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data_html_a244e09a3f5318c25a120e3d29379adc8"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a244e09a3f5318c25a120e3d29379adc8">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_reserved2</a></div><div class="ttdeci">const uint16_t m_reserved2</div><div class="ttdoc">Unused space reserved for future use, ensuring correct alignment of other fields and headers.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00454">low_lvl_packet.hpp:454</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html">flow::net_flow::Low_lvl_packet::Aux_raw_data</a></div><div class="ttdoc">Helper data store type for storing binary data needed by serialize_to_raw_data(), when certains bits ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00439">low_lvl_packet.hpp:441</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data_html_a22799fa7c7948cc2f35a411523c12479"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a22799fa7c7948cc2f35a411523c12479">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_opt_rexmit_on_raw</a></div><div class="ttdeci">uint8_t m_opt_rexmit_on_raw</div><div class="ttdoc">This is the serialized version of the multi-byte bool Low_lvl_packet::m_opt_rexmit_on.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00448">low_lvl_packet.hpp:448</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data_html_a244e09a3f5318c25a120e3d29379adc8"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a244e09a3f5318c25a120e3d29379adc8">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_reserved2</a></div><div class="ttdeci">const uint16_t m_reserved2</div><div class="ttdoc">Unused space reserved for future use, ensuring correct alignment of other fields and headers.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00455">low_lvl_packet.hpp:455</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data_html_a7ae37084e00d375a749c3730f77e6072"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html#a7ae37084e00d375a749c3730f77e6072">flow::net_flow::Low_lvl_packet::Aux_raw_data::Aux_raw_data</a></div><div class="ttdeci">Aux_raw_data()</div><div class="ttdoc">Constructs a mostly-uninitialized object, except for the const member(s), if any.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00048">low_lvl_packet.cpp:48</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html">flow::net_flow::Low_lvl_packet::Packet_type_info</a></div><div class="ttdoc">A simple, unmodifiable data store that contains the properties unique to each packet type a/k/a concr...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00468">low_lvl_packet.hpp:469</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info_html_a167901d7c0f96f240dd789027ad99dc5"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html#a167901d7c0f96f240dd789027ad99dc5">flow::net_flow::Low_lvl_packet::Packet_type_info::m_raw_type_id</a></div><div class="ttdeci">const uint8_t m_raw_type_id</div><div class="ttdoc">The type ID value, in serialized order, to be used in each serialization of all packets of this type.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00471">low_lvl_packet.hpp:471</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info_html_a8dc054626823cb59a1570214349b8450"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html#a8dc054626823cb59a1570214349b8450">flow::net_flow::Low_lvl_packet::Packet_type_info::m_type_id_str</a></div><div class="ttdeci">const std::string m_type_id_str</div><div class="ttdoc">The brief string representation of this packet type, suitable for Low_lvl_packet::type_id_to_str().</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00474">low_lvl_packet.hpp:474</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html">flow::net_flow::Low_lvl_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00164">low_lvl_packet.hpp:170</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a01ff17bec742d9e363aea2ecd23f2f72"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">flow::net_flow::Low_lvl_packet::rcv_wnd_t</a></div><div class="ttdeci">uint32_t rcv_wnd_t</div><div class="ttdoc">Type used to store the size of m_rcv_wnd member in a couple of different packet types.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00202">low_lvl_packet.hpp:202</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a09f0f187521ec2275885d68b7f6e734a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a09f0f187521ec2275885d68b7f6e734a">flow::net_flow::Low_lvl_packet::create_uninit_packet</a></div><div class="ttdeci">static boost::shared_ptr&lt; Low_lvl_packet_sub &gt; create_uninit_packet(log::Logger *logger_ptr)</div><div class="ttdoc">Constructs packet with uninitialized (essentially random) values, of the Low_lvl_packet sub-type spec...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01388">low_lvl_packet.hpp:1388</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a11e7750d22415a381e23112062f7ca74"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">flow::net_flow::Low_lvl_packet::rexmit_id_t</a></div><div class="ttdeci">uint8_t rexmit_id_t</div><div class="ttdoc">Type used to store the retransmission count in DATA and ACK packets.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00199">low_lvl_packet.hpp:199</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a1295f44e5a4ebdece11ed6d0eea0fbaa"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a1295f44e5a4ebdece11ed6d0eea0fbaa">flow::net_flow::Low_lvl_packet::m_aux_raw_data</a></div><div class="ttdeci">Aux_raw_data m_aux_raw_data</div><div class="ttdoc">Auxilliary data area necessary for serialize_to_raw_data() to work.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00571">low_lvl_packet.hpp:571</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html">flow::net_flow::Low_lvl_packet::Packet_type_info</a></div><div class="ttdoc">A simple, unmodifiable data store that contains the properties unique to each packet type a/k/a concr...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00469">low_lvl_packet.hpp:470</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info_html_a167901d7c0f96f240dd789027ad99dc5"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html#a167901d7c0f96f240dd789027ad99dc5">flow::net_flow::Low_lvl_packet::Packet_type_info::m_raw_type_id</a></div><div class="ttdeci">const uint8_t m_raw_type_id</div><div class="ttdoc">The type ID value, in serialized order, to be used in each serialization of all packets of this type.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00472">low_lvl_packet.hpp:472</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info_html_a8dc054626823cb59a1570214349b8450"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html#a8dc054626823cb59a1570214349b8450">flow::net_flow::Low_lvl_packet::Packet_type_info::m_type_id_str</a></div><div class="ttdeci">const std::string m_type_id_str</div><div class="ttdoc">The brief string representation of this packet type, suitable for Low_lvl_packet::type_id_to_str().</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00475">low_lvl_packet.hpp:475</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html">flow::net_flow::Low_lvl_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00165">low_lvl_packet.hpp:171</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a01ff17bec742d9e363aea2ecd23f2f72"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">flow::net_flow::Low_lvl_packet::rcv_wnd_t</a></div><div class="ttdeci">uint32_t rcv_wnd_t</div><div class="ttdoc">Type used to store the size of m_rcv_wnd member in a couple of different packet types.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00203">low_lvl_packet.hpp:203</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a09f0f187521ec2275885d68b7f6e734a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a09f0f187521ec2275885d68b7f6e734a">flow::net_flow::Low_lvl_packet::create_uninit_packet</a></div><div class="ttdeci">static boost::shared_ptr&lt; Low_lvl_packet_sub &gt; create_uninit_packet(log::Logger *logger_ptr)</div><div class="ttdoc">Constructs packet with uninitialized (essentially random) values, of the Low_lvl_packet sub-type spec...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01385">low_lvl_packet.hpp:1385</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a11e7750d22415a381e23112062f7ca74"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">flow::net_flow::Low_lvl_packet::rexmit_id_t</a></div><div class="ttdeci">uint8_t rexmit_id_t</div><div class="ttdoc">Type used to store the retransmission count in DATA and ACK packets.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00200">low_lvl_packet.hpp:200</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a1295f44e5a4ebdece11ed6d0eea0fbaa"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a1295f44e5a4ebdece11ed6d0eea0fbaa">flow::net_flow::Low_lvl_packet::m_aux_raw_data</a></div><div class="ttdeci">Aux_raw_data m_aux_raw_data</div><div class="ttdoc">Auxilliary data area necessary for serialize_to_raw_data() to work.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00572">low_lvl_packet.hpp:572</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a186d7dae0c4b4402aed22a25d595ed30"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a186d7dae0c4b4402aed22a25d595ed30">flow::net_flow::Low_lvl_packet::create_from_raw_data_packet</a></div><div class="ttdeci">static Ptr create_from_raw_data_packet(log::Logger *logger_ptr, util::Blob *raw_packet, bool prefer_no_move)</div><div class="ttdoc">Constructs packet on the heap with values determined by the given raw binary data as presumably recei...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00381">low_lvl_packet.cpp:381</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a37c9c6b04502d73defb803c1efabdf63"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a37c9c6b04502d73defb803c1efabdf63">flow::net_flow::Low_lvl_packet::type_id_to_str</a></div><div class="ttdeci">static const std::string &amp; type_id_to_str(const std::type_index &amp;type_id)</div><div class="ttdoc">Returns a brief (a few characters) string description of the given packet type given as type_index(ty...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00108">low_lvl_packet.cpp:108</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a3e7152648c0098491512da590b47b464"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a3e7152648c0098491512da590b47b464">flow::net_flow::Low_lvl_packet::m_packed</a></div><div class="ttdeci">struct flow::net_flow::Low_lvl_packet::@7 m_packed</div><div class="ttdoc">Packed group affected by #pragma pack.</div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a47e9143f0b9dd4ae9d8c5ace666d5539"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a47e9143f0b9dd4ae9d8c5ace666d5539">flow::net_flow::Low_lvl_packet::to_ostream</a></div><div class="ttdeci">virtual std::ostream &amp; to_ostream(std::ostream &amp;os, bool verbose=false) const</div><div class="ttdoc">Writes a multi-line representation of *this to an output stream.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00912">low_lvl_packet.cpp:912</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a4a0585d1abae63af891161f1719bc582"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a4a0585d1abae63af891161f1719bc582">flow::net_flow::Low_lvl_packet::Low_lvl_packet</a></div><div class="ttdeci">Low_lvl_packet(log::Logger *logger_ptr)</div><div class="ttdoc">Constructs packet with uninitialized (essentially random) values.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00054">low_lvl_packet.cpp:54</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a521afb86aaf334b871c9226ce503c508"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a521afb86aaf334b871c9226ce503c508">flow::net_flow::Low_lvl_packet::S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</a></div><div class="ttdeci">static const boost::unordered_map&lt; std::type_index, Packet_type_info &gt; S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</div><div class="ttdoc">Mapping from native typeid(), a/k/a packet type (for all possible packet types), to the set of proper...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00558">low_lvl_packet.hpp:558</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a57c06fd2d0b1c3ac058c13f9081067f0"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a57c06fd2d0b1c3ac058c13f9081067f0">flow::net_flow::Low_lvl_packet::native_is_big_endian</a></div><div class="ttdeci">static constexpr bool native_is_big_endian()</div><div class="ttdoc">Returns true, at compile time, if and only if the native memory representation is big-endian,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01404">low_lvl_packet.hpp:1404</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a521afb86aaf334b871c9226ce503c508"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a521afb86aaf334b871c9226ce503c508">flow::net_flow::Low_lvl_packet::S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</a></div><div class="ttdeci">static const boost::unordered_map&lt; std::type_index, Packet_type_info &gt; S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</div><div class="ttdoc">Mapping from native typeid(), a/k/a packet type (for all possible packet types), to the set of proper...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00559">low_lvl_packet.hpp:559</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a57c06fd2d0b1c3ac058c13f9081067f0"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a57c06fd2d0b1c3ac058c13f9081067f0">flow::net_flow::Low_lvl_packet::native_is_big_endian</a></div><div class="ttdeci">static constexpr bool native_is_big_endian()</div><div class="ttdoc">Returns true, at compile time, if and only if the native memory representation is big-endian,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01401">low_lvl_packet.hpp:1401</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a5856c405aa18f4f54a35515786befea8"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a5856c405aa18f4f54a35515786befea8">flow::net_flow::Low_lvl_packet::serialize_to_raw_data_and_log</a></div><div class="ttdeci">size_t serialize_to_raw_data_and_log(Const_buffer_sequence *raw_bufs) const</div><div class="ttdoc">Identical to serialize_to_raw_data() but adds log-level-appropriate logging after the operation.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00130">low_lvl_packet.cpp:130</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a5c6a0e32bfe5616843746319533ca2c1"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a5c6a0e32bfe5616843746319533ca2c1">flow::net_flow::Low_lvl_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">virtual bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet)=0</div><div class="ttdoc">virtual helper for create_from_raw_data_packet() that fills out the fields of *this that are not in L...</div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a64981689c6d162131889bd90ef003279"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a64981689c6d162131889bd90ef003279">flow::net_flow::Low_lvl_packet::create_uninit_packet_base</a></div><div class="ttdeci">static Ptr create_uninit_packet_base(log::Logger *logger_ptr)</div><div class="ttdoc">A simple convenience method that casts the result of create_uninit_packet() from shared_ptr&lt;T&gt;,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01399">low_lvl_packet.hpp:1399</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a64981689c6d162131889bd90ef003279"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a64981689c6d162131889bd90ef003279">flow::net_flow::Low_lvl_packet::create_uninit_packet_base</a></div><div class="ttdeci">static Ptr create_uninit_packet_base(log::Logger *logger_ptr)</div><div class="ttdoc">A simple convenience method that casts the result of create_uninit_packet() from shared_ptr&lt;T&gt;,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01396">low_lvl_packet.hpp:1396</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a6b3de1eb7a337002440ecd1ab0ad058f"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6b3de1eb7a337002440ecd1ab0ad058f">flow::net_flow::Low_lvl_packet::type_id_native_to_raw</a></div><div class="ttdeci">static const uint8_t &amp; type_id_native_to_raw(const std::type_info &amp;type_id)</div><div class="ttdoc">Helper that looks up the Packet_type_info::m_raw_type_id value for the given typeid(p),...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00119">low_lvl_packet.cpp:119</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a6e16e9c355c6d5e2acff5f9bdc24f397"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">flow::net_flow::Low_lvl_packet::Const_buffer_sequence</a></div><div class="ttdeci">std::vector&lt; Const_buffer &gt; Const_buffer_sequence</div><div class="ttdoc">Short-hand for sequence of immutable buffers; i.e., a sequence of 1 or more scattered areas in memory...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00188">low_lvl_packet.hpp:188</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a6e16e9c355c6d5e2acff5f9bdc24f397"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a6e16e9c355c6d5e2acff5f9bdc24f397">flow::net_flow::Low_lvl_packet::Const_buffer_sequence</a></div><div class="ttdeci">std::vector&lt; Const_buffer &gt; Const_buffer_sequence</div><div class="ttdoc">Short-hand for sequence of immutable buffers; i.e., a sequence of 1 or more scattered areas in memory...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00189">low_lvl_packet.hpp:189</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a720372b60ae7b7ee23c9f2d6775c7de1"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a720372b60ae7b7ee23c9f2d6775c7de1">flow::net_flow::Low_lvl_packet::type_to_ostream</a></div><div class="ttdeci">std::ostream &amp; type_to_ostream(std::ostream &amp;os) const</div><div class="ttdoc">Writes a brief representation of typeid(*this) – i.e., the packet type (ACK, RST, etc....</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l01053">low_lvl_packet.cpp:1053</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a786030d997a7602733a6a4422cb34274"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a786030d997a7602733a6a4422cb34274">flow::net_flow::Low_lvl_packet::m_dst_port</a></div><div class="ttdeci">flow_port_t m_dst_port</div><div class="ttdoc">Flow-protocol port # of socket in receiving Node.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00233">low_lvl_packet.hpp:233</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a7f4fd9ce69e293477e96fbad0a2298ed"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a7f4fd9ce69e293477e96fbad0a2298ed">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a></div><div class="ttdeci">const Function&lt; std::ostream &amp;(std::ostream &amp;)&gt; m_type_ostream_manip</div><div class="ttdoc">ostream manipulator (argument to ostream &lt;&lt;) that will output packet's type (&quot;ACK&quot;,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00245">low_lvl_packet.hpp:245</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a872044469cfa05a3abf3f9ab1c7cf03b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a872044469cfa05a3abf3f9ab1c7cf03b">flow::net_flow::Low_lvl_packet::security_token_t</a></div><div class="ttdeci">uint64_t security_token_t</div><div class="ttdoc">Type used for m_security_token member of a couple different packet types.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00191">low_lvl_packet.hpp:191</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a89bbdc4968a82877de3d7bcba3597c2c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a89bbdc4968a82877de3d7bcba3597c2c">flow::net_flow::Low_lvl_packet::m_concise_ostream_manip</a></div><div class="ttdeci">const Function&lt; std::ostream &amp;(std::ostream &amp;)&gt; m_concise_ostream_manip</div><div class="ttdoc">ostream manipulator (argument to ostream &lt;&lt;) that will output packet info suitable for TRACE log leve...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00251">low_lvl_packet.hpp:251</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a786030d997a7602733a6a4422cb34274"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a786030d997a7602733a6a4422cb34274">flow::net_flow::Low_lvl_packet::m_dst_port</a></div><div class="ttdeci">flow_port_t m_dst_port</div><div class="ttdoc">Flow-protocol port # of socket in receiving Node.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00234">low_lvl_packet.hpp:234</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a7f4fd9ce69e293477e96fbad0a2298ed"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a7f4fd9ce69e293477e96fbad0a2298ed">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a></div><div class="ttdeci">const Function&lt; std::ostream &amp;(std::ostream &amp;)&gt; m_type_ostream_manip</div><div class="ttdoc">ostream manipulator (argument to ostream &lt;&lt;) that will output packet's type (&quot;ACK&quot;,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00246">low_lvl_packet.hpp:246</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a872044469cfa05a3abf3f9ab1c7cf03b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a872044469cfa05a3abf3f9ab1c7cf03b">flow::net_flow::Low_lvl_packet::security_token_t</a></div><div class="ttdeci">uint64_t security_token_t</div><div class="ttdoc">Type used for m_security_token member of a couple different packet types.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00192">low_lvl_packet.hpp:192</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a89bbdc4968a82877de3d7bcba3597c2c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a89bbdc4968a82877de3d7bcba3597c2c">flow::net_flow::Low_lvl_packet::m_concise_ostream_manip</a></div><div class="ttdeci">const Function&lt; std::ostream &amp;(std::ostream &amp;)&gt; m_concise_ostream_manip</div><div class="ttdoc">ostream manipulator (argument to ostream &lt;&lt;) that will output packet info suitable for TRACE log leve...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00252">low_lvl_packet.hpp:252</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_aa2b4697824bd3ca88970c67d9a1f3e76"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76">flow::net_flow::Low_lvl_packet::serialize_to_raw_data</a></div><div class="ttdeci">virtual size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const =0</div><div class="ttdoc">Serializes the current logical packet data from *this into the given Const_buffer_sequence,...</div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_ab735867345855ad43e5e3ff788cf5a9a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">flow::net_flow::Low_lvl_packet::Const_buffer</a></div><div class="ttdeci">boost::asio::const_buffer Const_buffer</div><div class="ttdoc">Short-hand for boost.asio immutable buffer, which essentially is a pointer to and length of a memory ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00179">low_lvl_packet.hpp:179</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_ab735867345855ad43e5e3ff788cf5a9a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a">flow::net_flow::Low_lvl_packet::Const_buffer</a></div><div class="ttdeci">boost::asio::const_buffer Const_buffer</div><div class="ttdoc">Short-hand for boost.asio immutable buffer, which essentially is a pointer to and length of a memory ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00180">low_lvl_packet.hpp:180</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_ac7b199700e34d3cc17a7653d7bbb134b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ac7b199700e34d3cc17a7653d7bbb134b">flow::net_flow::Low_lvl_packet::serialize_common_header_to_raw_data</a></div><div class="ttdeci">size_t serialize_common_header_to_raw_data(Const_buffer_sequence *raw_bufs) const</div><div class="ttdoc">Helper for serialize_to_raw_data() implementations in sub-types that encodes the header common to all...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00159">low_lvl_packet.cpp:159</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_acc2a10d19e8e54c88518ad2e02a08b68"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#acc2a10d19e8e54c88518ad2e02a08b68">flow::net_flow::Low_lvl_packet::m_opt_rexmit_on</a></div><div class="ttdeci">bool m_opt_rexmit_on</div><div class="ttdoc">Option indicating whether this connection is using retransmission or not.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00222">low_lvl_packet.hpp:222</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_ae3e64b049838a690384a899209ffca7b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ae3e64b049838a690384a899209ffca7b">flow::net_flow::Low_lvl_packet::m_verbose_ostream_manip</a></div><div class="ttdeci">const Function&lt; std::ostream &amp;(std::ostream &amp;)&gt; m_verbose_ostream_manip</div><div class="ttdoc">ostream manipulator (argument to ostream &lt;&lt;) that will output packet info suitable for DATA log level...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00248">low_lvl_packet.hpp:248</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_ae5bd1ed0883b4827d8a81d70c10fd271"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ae5bd1ed0883b4827d8a81d70c10fd271">flow::net_flow::Low_lvl_packet::m_src_port</a></div><div class="ttdeci">flow_port_t m_src_port</div><div class="ttdoc">Flow-protocol port # of socket in sending Node.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00231">low_lvl_packet.hpp:231</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html">flow::net_flow::Rst_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level RST packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01332">low_lvl_packet.hpp:1333</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_acc2a10d19e8e54c88518ad2e02a08b68"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#acc2a10d19e8e54c88518ad2e02a08b68">flow::net_flow::Low_lvl_packet::m_opt_rexmit_on</a></div><div class="ttdeci">bool m_opt_rexmit_on</div><div class="ttdoc">Option indicating whether this connection is using retransmission or not.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00223">low_lvl_packet.hpp:223</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_ae3e64b049838a690384a899209ffca7b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ae3e64b049838a690384a899209ffca7b">flow::net_flow::Low_lvl_packet::m_verbose_ostream_manip</a></div><div class="ttdeci">const Function&lt; std::ostream &amp;(std::ostream &amp;)&gt; m_verbose_ostream_manip</div><div class="ttdoc">ostream manipulator (argument to ostream &lt;&lt;) that will output packet info suitable for DATA log level...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00249">low_lvl_packet.hpp:249</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_ae5bd1ed0883b4827d8a81d70c10fd271"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ae5bd1ed0883b4827d8a81d70c10fd271">flow::net_flow::Low_lvl_packet::m_src_port</a></div><div class="ttdeci">flow_port_t m_src_port</div><div class="ttdoc">Flow-protocol port # of socket in sending Node.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00232">low_lvl_packet.hpp:232</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html">flow::net_flow::Rst_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level RST packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01329">low_lvl_packet.hpp:1330</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html_a06e98008f816699dcd5c8890914a6b3f"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html#a06e98008f816699dcd5c8890914a6b3f">flow::net_flow::Rst_packet::serialize_to_raw_data</a></div><div class="ttdeci">size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00375">low_lvl_packet.cpp:375</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html_a171bf247cad883b73b4b76957dfe4994"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html#a171bf247cad883b73b4b76957dfe4994">flow::net_flow::Rst_packet::Rst_packet</a></div><div class="ttdeci">Rst_packet(log::Logger *logger_ptr)</div><div class="ttdoc">The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00102">low_lvl_packet.cpp:102</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html_a915e6803b36ae470e585b1bc90622079"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html#a915e6803b36ae470e585b1bc90622079">flow::net_flow::Rst_packet::S_RAW_TYPE_ID</a></div><div class="ttdeci">static const uint8_t S_RAW_TYPE_ID</div><div class="ttdoc">In serialized packet, the type ID byte identifying this as an RST packet. Must not equal any other pa...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01349">low_lvl_packet.hpp:1349</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html_a915e6803b36ae470e585b1bc90622079"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html#a915e6803b36ae470e585b1bc90622079">flow::net_flow::Rst_packet::S_RAW_TYPE_ID</a></div><div class="ttdeci">static const uint8_t S_RAW_TYPE_ID</div><div class="ttdoc">In serialized packet, the type ID byte identifying this as an RST packet. Must not equal any other pa...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01346">low_lvl_packet.hpp:1346</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html_ae1292deb7eec0f01d3ff111977ff5693"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html#ae1292deb7eec0f01d3ff111977ff5693">flow::net_flow::Rst_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet) override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00893">low_lvl_packet.cpp:893</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html">flow::net_flow::Syn_ack_ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK_ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00791">low_lvl_packet.hpp:792</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html">flow::net_flow::Syn_ack_ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK_ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00792">low_lvl_packet.hpp:793</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_a0f2665713bcedc20db1365412630ff6f"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a0f2665713bcedc20db1365412630ff6f">flow::net_flow::Syn_ack_ack_packet::to_ostream</a></div><div class="ttdeci">std::ostream &amp; to_ostream(std::ostream &amp;os, bool verbose) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00958">low_lvl_packet.cpp:958</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_a15bb98c2c3c00dc2c2db7f76a932d65c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a15bb98c2c3c00dc2c2db7f76a932d65c">flow::net_flow::Syn_ack_ack_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet) override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00614">low_lvl_packet.cpp:614</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_a1a0bad5bc4e9c966709f7bc8a2469bf6"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a1a0bad5bc4e9c966709f7bc8a2469bf6">flow::net_flow::Syn_ack_ack_packet::m_packed</a></div><div class="ttdeci">struct flow::net_flow::Syn_ack_ack_packet::@9 m_packed</div><div class="ttdoc">Packed group affected by #pragma pack.</div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_a3a3a3d676ec71eee0d2daa56a3b73403"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a3a3a3d676ec71eee0d2daa56a3b73403">flow::net_flow::Syn_ack_ack_packet::m_rcv_wnd</a></div><div class="ttdeci">rcv_wnd_t m_rcv_wnd</div><div class="ttdoc">Same meaning as in Syn_ack_packet but applied to the essentially independent opposite traffic directi...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00809">low_lvl_packet.hpp:809</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_a3a3a3d676ec71eee0d2daa56a3b73403"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a3a3a3d676ec71eee0d2daa56a3b73403">flow::net_flow::Syn_ack_ack_packet::m_rcv_wnd</a></div><div class="ttdeci">rcv_wnd_t m_rcv_wnd</div><div class="ttdoc">Same meaning as in Syn_ack_packet but applied to the essentially independent opposite traffic directi...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00810">low_lvl_packet.hpp:810</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_a817e22c18b67db0e2e4794b962e4365d"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a817e22c18b67db0e2e4794b962e4365d">flow::net_flow::Syn_ack_ack_packet::serialize_to_raw_data</a></div><div class="ttdeci">size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00259">low_lvl_packet.cpp:259</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_a86707d5efb4b1b5ad056a4255976e262"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a86707d5efb4b1b5ad056a4255976e262">flow::net_flow::Syn_ack_ack_packet::Syn_ack_ack_packet</a></div><div class="ttdeci">Syn_ack_ack_packet(log::Logger *logger_ptr)</div><div class="ttdoc">The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00082">low_lvl_packet.cpp:82</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_ab2537625fa282f302e586dee1c24cd19"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#ab2537625fa282f302e586dee1c24cd19">flow::net_flow::Syn_ack_ack_packet::m_security_token</a></div><div class="ttdeci">security_token_t m_security_token</div><div class="ttdoc">This must equal Syn_ack_packet m_security_token received in the packet to which *this is replying.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00803">low_lvl_packet.hpp:803</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_ade7cf2a204f400633f079bed7b4b4972"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#ade7cf2a204f400633f079bed7b4b4972">flow::net_flow::Syn_ack_ack_packet::S_RAW_TYPE_ID</a></div><div class="ttdeci">static const uint8_t S_RAW_TYPE_ID</div><div class="ttdoc">In serialized packet, the type ID byte identifying this as a SYN_ACK_ACK. Must not equal any other pa...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00822">low_lvl_packet.hpp:822</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html">flow::net_flow::Syn_ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00677">low_lvl_packet.hpp:678</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a0535131057e39d7d9092156fa674b9d4"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a0535131057e39d7d9092156fa674b9d4">flow::net_flow::Syn_ack_packet::m_init_seq_num</a></div><div class="ttdeci">Sequence_number m_init_seq_num</div><div class="ttdoc">Same meaning as Syn_packet::m_init_seq_num but applied to the essentially independent opposite traffi...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00685">low_lvl_packet.hpp:685</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_ab2537625fa282f302e586dee1c24cd19"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#ab2537625fa282f302e586dee1c24cd19">flow::net_flow::Syn_ack_ack_packet::m_security_token</a></div><div class="ttdeci">security_token_t m_security_token</div><div class="ttdoc">This must equal Syn_ack_packet m_security_token received in the packet to which *this is replying.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00804">low_lvl_packet.hpp:804</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html_ade7cf2a204f400633f079bed7b4b4972"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#ade7cf2a204f400633f079bed7b4b4972">flow::net_flow::Syn_ack_ack_packet::S_RAW_TYPE_ID</a></div><div class="ttdeci">static const uint8_t S_RAW_TYPE_ID</div><div class="ttdoc">In serialized packet, the type ID byte identifying this as a SYN_ACK_ACK. Must not equal any other pa...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00823">low_lvl_packet.hpp:823</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html">flow::net_flow::Syn_ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00678">low_lvl_packet.hpp:679</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a0535131057e39d7d9092156fa674b9d4"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a0535131057e39d7d9092156fa674b9d4">flow::net_flow::Syn_ack_packet::m_init_seq_num</a></div><div class="ttdeci">Sequence_number m_init_seq_num</div><div class="ttdoc">Same meaning as Syn_packet::m_init_seq_num but applied to the essentially independent opposite traffi...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00686">low_lvl_packet.hpp:686</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a1ce651745da7f488ec0bcf3d4f3467a9"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a1ce651745da7f488ec0bcf3d4f3467a9">flow::net_flow::Syn_ack_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet) override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00565">low_lvl_packet.cpp:565</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a1ed3bdee2d19c2adaaf00fda9b5a7ca8"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a1ed3bdee2d19c2adaaf00fda9b5a7ca8">flow::net_flow::Syn_ack_packet::m_rcv_wnd</a></div><div class="ttdeci">rcv_wnd_t m_rcv_wnd</div><div class="ttdoc">Number of DATA payload bytes the sender of this packet would accept into its Receive buffer,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00710">low_lvl_packet.hpp:710</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a1ed3bdee2d19c2adaaf00fda9b5a7ca8"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a1ed3bdee2d19c2adaaf00fda9b5a7ca8">flow::net_flow::Syn_ack_packet::m_rcv_wnd</a></div><div class="ttdeci">rcv_wnd_t m_rcv_wnd</div><div class="ttdoc">Number of DATA payload bytes the sender of this packet would accept into its Receive buffer,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00711">low_lvl_packet.hpp:711</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a439f09a3ae4d1a5125781e220e29c39e"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a439f09a3ae4d1a5125781e220e29c39e">flow::net_flow::Syn_ack_packet::Syn_ack_packet</a></div><div class="ttdeci">Syn_ack_packet(log::Logger *logger_ptr)</div><div class="ttdoc">The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00076">low_lvl_packet.cpp:76</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a46bb776a13c77d7109469c0c29565a30"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a46bb776a13c77d7109469c0c29565a30">flow::net_flow::Syn_ack_packet::m_security_token</a></div><div class="ttdeci">security_token_t m_security_token</div><div class="ttdoc">Random security token used during SYN_ACK-SYN_ACK_ACK.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00696">low_lvl_packet.hpp:696</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a46bb776a13c77d7109469c0c29565a30"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a46bb776a13c77d7109469c0c29565a30">flow::net_flow::Syn_ack_packet::m_security_token</a></div><div class="ttdeci">security_token_t m_security_token</div><div class="ttdoc">Random security token used during SYN_ACK-SYN_ACK_ACK.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00697">low_lvl_packet.hpp:697</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a98fae8deebcd22c8397f2585de18ce9d"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a98fae8deebcd22c8397f2585de18ce9d">flow::net_flow::Syn_ack_packet::serialize_to_raw_data</a></div><div class="ttdeci">size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00235">low_lvl_packet.cpp:235</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_a9c98a61096d86196c073a232e432d03b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a9c98a61096d86196c073a232e432d03b">flow::net_flow::Syn_ack_packet::to_ostream</a></div><div class="ttdeci">std::ostream &amp; to_ostream(std::ostream &amp;os, bool verbose) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00947">low_lvl_packet.cpp:947</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_aaf2fa9221da49c413441aa8fec93ce91"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#aaf2fa9221da49c413441aa8fec93ce91">flow::net_flow::Syn_ack_packet::m_packed</a></div><div class="ttdeci">struct flow::net_flow::Syn_ack_packet::@8 m_packed</div><div class="ttdoc">Packed group affected by #pragma pack.</div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_ab6db0fded81c7002f0bd00e9388b09bd"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#ab6db0fded81c7002f0bd00e9388b09bd">flow::net_flow::Syn_ack_packet::S_RAW_TYPE_ID</a></div><div class="ttdeci">static const uint8_t S_RAW_TYPE_ID</div><div class="ttdoc">In serialized packet, the type ID byte identifying this as a SYN_ACK. Must not equal any other packet...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00726">low_lvl_packet.hpp:726</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html">flow::net_flow::Syn_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00582">low_lvl_packet.hpp:583</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html_ab6db0fded81c7002f0bd00e9388b09bd"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html#ab6db0fded81c7002f0bd00e9388b09bd">flow::net_flow::Syn_ack_packet::S_RAW_TYPE_ID</a></div><div class="ttdeci">static const uint8_t S_RAW_TYPE_ID</div><div class="ttdoc">In serialized packet, the type ID byte identifying this as a SYN_ACK. Must not equal any other packet...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00727">low_lvl_packet.hpp:727</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html">flow::net_flow::Syn_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00583">low_lvl_packet.hpp:584</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_a11ded0bc8596fb4adc815c5322e7ad26"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#a11ded0bc8596fb4adc815c5322e7ad26">flow::net_flow::Syn_packet::to_ostream</a></div><div class="ttdeci">std::ostream &amp; to_ostream(std::ostream &amp;os, bool verbose) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00925">low_lvl_packet.cpp:925</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_a1f0628c2e2d6d58b881b379a95fde441"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#a1f0628c2e2d6d58b881b379a95fde441">flow::net_flow::Syn_packet::S_RAW_TYPE_ID</a></div><div class="ttdeci">static const uint8_t S_RAW_TYPE_ID</div><div class="ttdoc">In serialized packet, the type ID byte identifying this as a SYN packet. Must not equal any other pac...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00610">low_lvl_packet.hpp:610</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_a1f0628c2e2d6d58b881b379a95fde441"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#a1f0628c2e2d6d58b881b379a95fde441">flow::net_flow::Syn_packet::S_RAW_TYPE_ID</a></div><div class="ttdeci">static const uint8_t S_RAW_TYPE_ID</div><div class="ttdoc">In serialized packet, the type ID byte identifying this as a SYN packet. Must not equal any other pac...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00611">low_lvl_packet.hpp:611</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_a943eb247f6c6a0de134e2d255feaf146"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#a943eb247f6c6a0de134e2d255feaf146">flow::net_flow::Syn_packet::Syn_packet</a></div><div class="ttdeci">Syn_packet(log::Logger *logger_ptr)</div><div class="ttdoc">The implementation of Low_lvl_packet::create_uninit_packet() for this sub-type of Low_lvl_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00069">low_lvl_packet.cpp:69</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_abde26e74af2154fda517d6125353f305"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#abde26e74af2154fda517d6125353f305">flow::net_flow::Syn_packet::m_serialized_metadata</a></div><div class="ttdeci">util::Blob m_serialized_metadata</div><div class="ttdoc">Arbitrary serialized user-supplied metadata to send in SYN, where it can be deserialized by the user ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00602">low_lvl_packet.hpp:602</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_abde26e74af2154fda517d6125353f305"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#abde26e74af2154fda517d6125353f305">flow::net_flow::Syn_packet::m_serialized_metadata</a></div><div class="ttdeci">util::Blob m_serialized_metadata</div><div class="ttdoc">Arbitrary serialized user-supplied metadata to send in SYN, where it can be deserialized by the user ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00603">low_lvl_packet.hpp:603</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_aee4a61d5e344959abc89ee83ae105c8a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#aee4a61d5e344959abc89ee83ae105c8a">flow::net_flow::Syn_packet::deserialize_type_specific_data_from_raw_data_packet</a></div><div class="ttdeci">bool deserialize_type_specific_data_from_raw_data_packet(Const_buffer *raw_buf, bool prefer_no_move, util::Blob *raw_packet) override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00513">low_lvl_packet.cpp:513</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_af235e53d05d025b0808b2ee677c0cba4"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#af235e53d05d025b0808b2ee677c0cba4">flow::net_flow::Syn_packet::m_init_seq_num</a></div><div class="ttdeci">Sequence_number m_init_seq_num</div><div class="ttdoc">The Initial Sequence Number (ISN) of the sequence number line that the sender of this SYN will be usi...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00593">low_lvl_packet.hpp:593</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_af235e53d05d025b0808b2ee677c0cba4"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#af235e53d05d025b0808b2ee677c0cba4">flow::net_flow::Syn_packet::m_init_seq_num</a></div><div class="ttdeci">Sequence_number m_init_seq_num</div><div class="ttdoc">The Initial Sequence Number (ISN) of the sequence number line that the sender of this SYN will be usi...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00594">low_lvl_packet.hpp:594</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html_af72461ac0c304cd5ea2bb3fca2b3a444"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html#af72461ac0c304cd5ea2bb3fca2b3a444">flow::net_flow::Syn_packet::serialize_to_raw_data</a></div><div class="ttdeci">size_t serialize_to_raw_data(Const_buffer_sequence *raw_bufs) const override</div><div class="ttdoc">Implements Low_lvl_packet API.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00199">low_lvl_packet.cpp:199</a></div></div>
+<div class="ttc" id="astructflow_1_1util_1_1Noncopyable_html"><div class="ttname"><a href="structflow_1_1util_1_1Noncopyable.html">flow::util::Noncopyable</a></div><div class="ttdoc">Useful as a no-unique-address private member to make a type noncopyable while keeping that type an ag...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00073">util.hpp:74</a></div></div>
 <div class="ttc" id="autil_2util_8hpp_html"><div class="ttname"><a href="util_2util_8hpp.html">util.hpp</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/namespaceboost_1_1filesystem.html b/doc/flow_doc/generated/html_full/namespaceboost_1_1filesystem.html
index b9bd9a45c..2dd57d98d 100644
--- a/doc/flow_doc/generated/html_full/namespaceboost_1_1filesystem.html
+++ b/doc/flow_doc/generated/html_full/namespaceboost_1_1filesystem.html
@@ -148,7 +148,7 @@ <h3>Rationale</h3>
 
 <p class="definition">Definition at line <a class="el" href="option__set_8cpp_source.html#l00106">106</a> of file <a class="el" href="option__set_8cpp_source.html">option_set.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00356">flow::util::ostream_op_string()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00381">flow::util::ostream_op_string()</a>.</p>
 <div class="dynheader">
 Here is the call graph for this function:</div>
 <div class="dyncontent">
@@ -161,7 +161,7 @@ <h3>Rationale</h3>
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/namespaceboost_1_1system.html b/doc/flow_doc/generated/html_full/namespaceboost_1_1system.html
index a6eaedff1..c4a12c1cc 100644
--- a/doc/flow_doc/generated/html_full/namespaceboost_1_1system.html
+++ b/doc/flow_doc/generated/html_full/namespaceboost_1_1system.html
@@ -87,7 +87,7 @@
 </div></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/namespaceflow.html b/doc/flow_doc/generated/html_full/namespaceflow.html
index 2d638c38b..65022eb00 100644
--- a/doc/flow_doc/generated/html_full/namespaceflow.html
+++ b/doc/flow_doc/generated/html_full/namespaceflow.html
@@ -219,7 +219,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a29eaaa9d0fac4ce87d8b9692
 <h3>Basic error-emitting API semantics</h3>
 <p >All error-reporting Flow APIs follow the following pattern of error reporting semantics. Each API looks something like:</p>
 <div class="fragment"><div class="line">return_type Some_class::some_op(..., <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a>* err_code)</div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
 </div><!-- fragment --><p >Then, there are two possibilities. If you pass in non-null <code>err_code</code>, then after return <code>*err_code</code> is success (falsy) or a truthy <code>enum</code>-like value, representing a specific error. If, instead, you pass in null, then a <a class="el" href="classflow_1_1error_1_1Runtime__error.html" title="An std::runtime_error (which is an std::exception) that stores an Error_code.">flow::error::Runtime_error()</a> <code>exc</code> is thrown if and only if <code>*err_code</code> would have been set to truthy value <code>e_c</code> had a non-null <code>err_code</code> been passed in. If such an exception is thrown, <code>Error_code e_c</code> is encapsulated in exception object <code>exc</code>. If and only if no exception is thrown, there was no error (<code>*err_code</code> would have been falsy).</p>
 <p >Thus, you get the best of both worlds: you can get the simplicity and performance of an error code; or the various features of an exception (including access to the error code via <code>exc.code()</code> if desired), with the same API signature. (boost.asio follows a similar concept, though it requires two API signatures for each operation, one without an <code>Error_code</code> argument, and one with non-<code>const</code> <code>Error_code&amp;</code> out-arg. The above convention is more compact; plus we provide certain tools to reduce boiler-plate in connection with this.)</p>
 <h3>Intro to <code>Error_code</code>, a/k/a <a class="el" href="namespaceboost_1_1system.html" title="We may add some ADL-based overloads into this namespace outside flow.">boost.system</a> <code>error_code</code></h3>
@@ -245,7 +245,7 @@ <h3>Intro to <code>Error_code</code>, a/k/a <a class="el" href="namespaceboost_1
 <dl class="section see"><dt>See also</dt><dd>The doc header (and code inside) <code>namespace</code> <a class="el" href="namespaceflow_1_1net__flow_1_1error.html" title="Namespace containing the net_flow module&#39;s extension of boost.system error conventions,...">flow::net_flow::error</a> is a good primer showing how to create an <code><a class="el" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09" title="Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...">Error_code</a></code>-compatible set of <a class="el" href="namespaceflow_1_1error.html" title="Flow module that facilitates working with error codes and exceptions; essentially comprised of niceti...">error</a> codes. This is easier to understand than boost.asio's counterpart for example.</dd></dl>
 <dl class="section note"><dt>Note</dt><dd><a class="el" href="namespaceboost_1_1system.html" title="We may add some ADL-based overloads into this namespace outside flow.">boost.system</a> at some point &ndash; I (ygoldfel) am fairly sure after I designed the above ages ago &ndash; introduced an alternate idiom for passing an <a class="el" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09" title="Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...">Error_code</a> out-arg that is to be ignored in favor of throwing an exception if omitted. We use the idiom: <code>Error_code*</code> out-arg, throw if null. They, instead propose: <code>Error_code&amp;</code> out-arg, throw if it equals <code>boost::system::throws()</code>. That's great, too, but actually our idiom hews to another bit of the Flow coding style/guide, wherein out-args should be pointers, not non-<code>const</code> references &ndash; and is otherwise very similar. So it's fine. Note that their idiom vs. ours = orthogonal to the main difficulty which is the boiler-plate associated with actually throwing vs. non-throwing; this would be required regardless of the API idiom chosen. The above (involving <a class="el" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279" title="Narrow-use macro that implements the error code/exception semantics expected of most public-facing Fl...">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR()</a>, etc.) is really the main crux of it. </dd></dl>
 
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+<p class="definition">Definition at line <a class="el" href="common_8hpp_source.html#l00508">508</a> of file <a class="el" href="common_8hpp_source.html">common.hpp</a>.</p>
 
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 <p >So basically it's a precise clock with no surprises (which is more than can be said for stuff people tend to be forced to use, like <code>gettimeofday()</code>). </p>
 
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+<p class="definition">Definition at line <a class="el" href="common_8hpp_source.html#l00410">410</a> of file <a class="el" href="common_8hpp_source.html">common.hpp</a>.</p>
 
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 <p>A high-res time duration as computed from two <code>Fine_time_pt</code>s. </p>
 
-<p class="definition">Definition at line <a class="el" href="common_8hpp_source.html#l00411">411</a> of file <a class="el" href="common_8hpp_source.html">common.hpp</a>.</p>
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 <p>A high-res time point as returned by <code>Fine_clock::now()</code> and suitable for precise time math in general. </p>
 
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+<p class="definition">Definition at line <a class="el" href="common_8hpp_source.html#l00413">413</a> of file <a class="el" href="common_8hpp_source.html">common.hpp</a>.</p>
 
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 <p>Signed byte. Prefer to use <code>uint8_t</code> when representing binary data. This is 8 bits on all modern systems. </p>
 
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+<p class="definition">Definition at line <a class="el" href="common_8hpp_source.html#l00393">393</a> of file <a class="el" href="common_8hpp_source.html">common.hpp</a>.</p>
 
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 <p>Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems. </p>
 
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+<p class="definition">Definition at line <a class="el" href="common_8hpp_source.html#l00391">391</a> of file <a class="el" href="common_8hpp_source.html">common.hpp</a>.</p>
 
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <p class="reference">References <a class="el" href="async_8cpp_source.html#l00030">cpu_idx()</a>, <a class="el" href="log_8hpp_source.html#l00405">FLOW_LOG_SET_CONTEXT</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485a4d7a5700444c0570af37b1f9bcc6eb1f">S_ASYNC</a>, <a class="el" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485a57525f29ac96f4edd56c951e7d7c7b25">S_ASYNC_AND_AWAIT_CONCURRENT_COMPLETION</a>, <a class="el" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485ae9a9ae292ea3fbbe3b313348dcec0846">S_ASYNC_AND_AWAIT_CONCURRENT_START</a>, <a class="el" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485aff6bc53ee6c14f2eee463c06d9dff01f">S_OPPORTUNISTIC_SYNC_ELSE_ASYNC</a>, and <a class="el" href="classflow_1_1log_1_1Logger.html#ac8a2e7a33fe3fbc0c29ead62ed98c022">flow::log::Logger::should_log()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05615">flow::net_flow::Node::close_abruptly()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03951">flow::net_flow::Node::connect_with_metadata()</a>, <a class="el" href="event__set_8cpp_source.html#l01273">flow::net_flow::Node::event_set_close()</a>, <a class="el" href="event__set_8cpp_source.html#l00881">flow::net_flow::Node::event_set_create()</a>, <a class="el" href="server__socket_8cpp_source.html#l00144">flow::net_flow::Node::listen()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06338">flow::net_flow::Node::sock_info()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05621">flow::net_flow::Node::close_abruptly()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03957">flow::net_flow::Node::connect_with_metadata()</a>, <a class="el" href="event__set_8cpp_source.html#l01273">flow::net_flow::Node::event_set_close()</a>, <a class="el" href="event__set_8cpp_source.html#l00881">flow::net_flow::Node::event_set_create()</a>, <a class="el" href="server__socket_8cpp_source.html#l00144">flow::net_flow::Node::listen()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06344">flow::net_flow::Node::sock_info()</a>.</p>
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@@ -979,7 +979,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a02afaeea759dfc180890e376
 
 <p class="definition">Definition at line <a class="el" href="concurrent__task__loop_8cpp_source.html#l00078">78</a> of file <a class="el" href="concurrent__task__loop_8cpp_source.html">concurrent_task_loop.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00405">FLOW_LOG_SET_CONTEXT</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="concurrent__task__loop_8cpp_source.html#l00035">optimal_worker_thread_count_per_pool()</a>, and <a class="el" href="util_2util_8hpp_source.html#l00356">flow::util::ostream_op_string()</a>.</p>
+<p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00405">FLOW_LOG_SET_CONTEXT</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="concurrent__task__loop_8cpp_source.html#l00035">optimal_worker_thread_count_per_pool()</a>, and <a class="el" href="util_2util_8hpp_source.html#l00381">flow::util::ostream_op_string()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00098">flow::async::Segregated_thread_task_loop::start()</a>, and <a class="el" href="x__thread__task__loop_8cpp_source.html#l00081">flow::async::Cross_thread_task_loop::start()</a>.</p>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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@@ -530,7 +530,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aafaf432a612183beab721758
 
 <p class="definition">Definition at line <a class="el" href="option__set_8hpp_source.html#l02237">2237</a> of file <a class="el" href="option__set_8hpp_source.html">option_set.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00356">flow::util::ostream_op_string()</a>, <a class="el" href="option__set_8cpp_source.html#l00038">value_set_member_id_to_opt_name()</a>, and <a class="el" href="namespaceflow_1_1cfg.html#ac2f99fdb8f743e12d8f92553292dc8d6">VALUE_SET_MEMBER_ID_TO_OPT_NAME_KEYED_REGEX</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00381">flow::util::ostream_op_string()</a>, <a class="el" href="option__set_8cpp_source.html#l00038">value_set_member_id_to_opt_name()</a>, and <a class="el" href="namespaceflow_1_1cfg.html#ac2f99fdb8f743e12d8f92553292dc8d6">VALUE_SET_MEMBER_ID_TO_OPT_NAME_KEYED_REGEX</a>.</p>
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@@ -587,7 +587,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ac3782f31b7c020d7b08e250e
 
 <p class="definition">Definition at line <a class="el" href="option__set_8hpp_source.html#l02166">2166</a> of file <a class="el" href="option__set_8hpp_source.html">option_set.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00356">flow::util::ostream_op_string()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00381">flow::util::ostream_op_string()</a>.</p>
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/namespaceflow_1_1log.html b/doc/flow_doc/generated/html_full/namespaceflow_1_1log.html
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 <p class="definition">Definition at line <a class="el" href="log_8cpp_source.html#l00270">270</a> of file <a class="el" href="log_8cpp_source.html">log.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00498">flow::util::istream_to_enum()</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a6fba12db09e5bebfaa04f6372c41c2cf">S_END_SENTINEL</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a9ed9d44ce5760f61ea506d5571343624">S_NONE</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00523">flow::util::istream_to_enum()</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a6fba12db09e5bebfaa04f6372c41c2cf">S_END_SENTINEL</a>, and <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a9ed9d44ce5760f61ea506d5571343624">S_NONE</a>.</p>
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/namespaceflow_1_1log_1_1fs.html b/doc/flow_doc/generated/html_full/namespaceflow_1_1log_1_1fs.html
index 33fff2327..89f8e1410 100644
--- a/doc/flow_doc/generated/html_full/namespaceflow_1_1log_1_1fs.html
+++ b/doc/flow_doc/generated/html_full/namespaceflow_1_1log_1_1fs.html
@@ -78,7 +78,7 @@
 </div></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/namespaceflow_1_1net__flow.html b/doc/flow_doc/generated/html_full/namespaceflow_1_1net__flow.html
index d10275eca..8d1aac554 100644
--- a/doc/flow_doc/generated/html_full/namespaceflow_1_1net__flow.html
+++ b/doc/flow_doc/generated/html_full/namespaceflow_1_1net__flow.html
@@ -471,7 +471,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a141b6e0eb37057ae02d08d4b
 <div class="line">Some_class some_instance;</div>
 <div class="line"><a class="code hl_class" href="classflow_1_1Function.html">flow::Function</a>&lt;ostream&amp; (ostream&amp;)&gt; print_something_to_stream</div>
 <div class="line">  = [some_instance](ostream&amp; os) -&gt; ostream&amp; { <span class="keywordflow">return</span> some_instance-&gt;func(os, <span class="keyword">false</span>); };</div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 </div><!-- fragment --><dl class="section warning"><dt>Warning</dt><dd>It is important for this to be in namespace <code><a class="el" href="namespaceflow_1_1net__flow.html" title="Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...">flow::net_flow</a></code>, not higher (such as <code>flow</code>) or lower. Otherwise the places needing this overload to be used won't, and it will either not compile; or compile but invoke some other, useless overload. Unfortunately placing it into a containing namespace makes it not work from within a contained namespace.</dd></dl>
 <dl class="section note"><dt>Note</dt><dd>You may note the above technique is not used for argument-bearing <code>std</code> stream manipulators; for example <code>std::setw()</code>. The technique used to make that work is that <code>setw()</code> would return some internal <code>struct</code> (of unknown-to-user type <code>T</code>), in which it has stored the argument to <code>setw()</code>; and an <code>operator&lt;&lt;(ostream, T)</code> overload is defined; this overload would actually set the field width (or whatever <code>setw()</code> is supposed to do) on the <code>ostream</code> &ndash; using the arg value stored in the <code>T</code>. That works, and it may be somewhat more performant than our solution; but our solution is <em>much</em> more elegant and concise; it lets one build stream manipulators out of any function at all, the only requirements on it being that it returns an <code>ostream&amp;</code> and takes same as <em>an</em> argument. The <code>std</code> technique allows the same, but we can do it with a single and expressive <code>bind()</code> call instead of a hidden internal <code>struct type</code>, explicitly storing arguments, documenting that stuff, etc. (We can change individual cases to use the <code>std</code>-style solution, if performance needs call for it, but so far there has been no such needs.) To be fair, the <code>std</code> solution is ALSO easier/more expressive at the actual call site. That is, in the above examples, one could just do: <code>cout &lt;&lt; func(false) &lt;&lt; ":" &lt;&lt; xyz;</code> or <code>cout &lt;&lt; some_instance.func(false) &lt;&lt; ":" &lt;&lt; xyz;</code>, respectively. That's easier to read than the <code>bind()</code> constructs above; but the code elsewhere that makes those <code>func()</code>s work is a huge mess that our solution completely avoids. For us, all that is needed behind the scenes is the present <code>operator&lt;&lt;</code> overload.</dd></dl>
 <dl class="params"><dt>Parameters</dt><dd>
@@ -565,7 +565,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a5d6e84102fc55993f914ec64
 </dl>
 <dl class="section return"><dt>Returns</dt><dd><code>os</code>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06508">6508</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06514">6514</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd><code>os</code>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06531">6531</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l06537">6537</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
 </div>
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@@ -1237,14 +1237,14 @@ <h2 class="memtitle"><span class="permalink"><a href="#a9dd0c9d8de00fab78d8b0a3f
 
 <p class="definition">Definition at line <a class="el" href="port__space_8cpp_source.html#l00033">33</a> of file <a class="el" href="port__space_8cpp_source.html">port_space.cpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04005">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="node_8cpp_source.html#l00426">flow::net_flow::Node::handle_incoming()</a>, <a class="el" href="server__socket_8cpp_source.html#l00218">flow::net_flow::Node::listen_worker()</a>, <a class="el" href="port__space_8cpp_source.html#l00045">flow::net_flow::Port_space::Port_space()</a>, <a class="el" href="port__space_8cpp_source.html#l00112">flow::net_flow::Port_space::reserve_ephemeral_port()</a>, and <a class="el" href="port__space_8cpp_source.html#l00075">flow::net_flow::Port_space::reserve_port()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04011">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="node_8cpp_source.html#l00426">flow::net_flow::Node::handle_incoming()</a>, <a class="el" href="server__socket_8cpp_source.html#l00218">flow::net_flow::Node::listen_worker()</a>, <a class="el" href="port__space_8cpp_source.html#l00045">flow::net_flow::Port_space::Port_space()</a>, <a class="el" href="port__space_8cpp_source.html#l00112">flow::net_flow::Port_space::reserve_ephemeral_port()</a>, and <a class="el" href="port__space_8cpp_source.html#l00075">flow::net_flow::Port_space::reserve_port()</a>.</p>
 
 </div>
 </div>
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/namespaceflow_1_1net__flow_1_1asio.html b/doc/flow_doc/generated/html_full/namespaceflow_1_1net__flow_1_1asio.html
index b9b1d6fd0..dbbe5909a 100644
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+++ b/doc/flow_doc/generated/html_full/namespaceflow_1_1net__flow_1_1asio.html
@@ -189,7 +189,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#acbbe4fae58626a54fabdcd4b
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/namespaceflow_1_1net__flow_1_1error.html b/doc/flow_doc/generated/html_full/namespaceflow_1_1net__flow_1_1error.html
index df0ce947a..d691ffd7a 100644
--- a/doc/flow_doc/generated/html_full/namespaceflow_1_1net__flow_1_1error.html
+++ b/doc/flow_doc/generated/html_full/namespaceflow_1_1net__flow_1_1error.html
@@ -149,7 +149,7 @@ <h3>Synopsis</h3>
 <div class="line"><span class="keywordflow">throw</span> <a class="code hl_class" href="classflow_1_1error_1_1Runtime__error.html">flow::error::Runtime_error</a>(code, <span class="stringliteral">&quot;Additional context info here!&quot;</span>);</div>
 <div class="ttc" id="aclassflow_1_1error_1_1Runtime__error_html"><div class="ttname"><a href="classflow_1_1error_1_1Runtime__error.html">flow::error::Runtime_error</a></div><div class="ttdoc">An std::runtime_error (which is an std::exception) that stores an Error_code.</div><div class="ttdef"><b>Definition:</b> <a href="error_2error_8hpp_source.html#l00047">error.hpp:49</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1error_html_a18e13de77b119ea0f2be411490859482aa220d89e1d0e34bab02ed2fc7512be9b"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482aa220d89e1d0e34bab02ed2fc7512be9b">flow::net_flow::error::Code::S_CONN_REFUSED</a></div><div class="ttdeci">@ S_CONN_REFUSED</div><div class="ttdoc">Other side refused connection.</div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
 </div><!-- fragment --><h3>Discussion</h3>
 <p >The contents of this <code>namespace</code> is one instance (and model example) for how one can easily create their own simple error code set <code>enum</code> (and corresponding string messages) and hook it into the flexible, yet maximally fast, <a class="el" href="namespaceboost_1_1system.html" title="We may add some ADL-based overloads into this namespace outside flow.">boost.system</a> error facility. Another example (a peer of ours) would be boost.asio's error code set. See <a class="el" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09" title="Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...">flow::Error_code</a> doc header for a top-down summary of the Flow-used-and-recommended error reporting system.</p>
 <p >For <a class="el" href="namespaceboost_1_1system.html" title="We may add some ADL-based overloads into this namespace outside flow.">boost.system</a> experts wondering whether there is support for <code>error_condition</code> equivalence (i.e., the ability to compare a given <code>flow::error::error_code</code> to a more general <code>boost::system::error_condition</code>), currently the answer is no, there isn't. We may add <code>error_condition</code>s as <a class="el" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09" title="Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...">Error_code</a> usage patterns emerge over time.</p>
@@ -298,7 +298,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a6d35c37eb70a494bb27aa807
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/namespaceflow_1_1perf.html b/doc/flow_doc/generated/html_full/namespaceflow_1_1perf.html
index 9e206df10..a5ef4be60 100644
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+++ b/doc/flow_doc/generated/html_full/namespaceflow_1_1perf.html
@@ -1014,7 +1014,7 @@ <h3>Synopsis/examples</h3>
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/namespaceflow_1_1util.html b/doc/flow_doc/generated/html_full/namespaceflow_1_1util.html
index 7c6b72ebe..83e214611 100644
--- a/doc/flow_doc/generated/html_full/namespaceflow_1_1util.html
+++ b/doc/flow_doc/generated/html_full/namespaceflow_1_1util.html
@@ -126,6 +126,9 @@
 <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classflow_1_1util_1_1Linked__hash__set.html">Linked_hash_set</a></td></tr>
 <tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">An object of this class is a set that combines the lookup speed of an <code>unordered_set&lt;&gt;</code> and ordering and iterator stability capabilities of an <code>std::list&lt;&gt;</code>.  <a href="classflow_1_1util_1_1Linked__hash__set.html#details">More...</a><br /></td></tr>
 <tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structflow_1_1util_1_1Noncopyable.html">Noncopyable</a></td></tr>
+<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Useful as a no-unique-address private member to make a type noncopyable while keeping that type an aggregate (can be direct-initialized).  <a href="structflow_1_1util_1_1Noncopyable.html#details">More...</a><br /></td></tr>
+<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
 <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classflow_1_1util_1_1Null__interface.html">Null_interface</a></td></tr>
 <tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">An empty interface, consisting of nothing but a default <code>virtual</code> destructor, intended as a boiler-plate-reducing base for any other (presumably <code>virtual</code>-method-having) class that would otherwise require a default <code>virtual</code> destructor.  <a href="classflow_1_1util_1_1Null__interface.html#details">More...</a><br /></td></tr>
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@@ -1146,9 +1149,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a16357344c21456b86b7de308
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 <dl class="section return"><dt>Returns</dt><dd>Result string. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00481">481</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00506">506</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00388">buffers_to_ostream()</a>, and <a class="el" href="string__ostream_8cpp_source.html#l00033">flow::util::String_ostream::os()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00413">buffers_to_ostream()</a>, and <a class="el" href="string__ostream_8cpp_source.html#l00033">flow::util::String_ostream::os()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="socket__buffer_8cpp_source.html#l00103">flow::net_flow::Socket_buffer::consume_buf_move()</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00543">flow::net_flow::Socket_buffer::consume_bufs_copy()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00381">flow::net_flow::Low_lvl_packet::create_from_raw_data_packet()</a>, <a class="el" href="socket__buffer_8cpp_source.html#l00039">flow::net_flow::Socket_buffer::feed_buf_move()</a>, <a class="el" href="socket__buffer_8hpp_source.html#l00391">flow::net_flow::Socket_buffer::feed_bufs_copy()</a>, <a class="el" href="peer__socket_8cpp_source.html#l00560">flow::net_flow::Node::handle_data_to_established()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00130">flow::net_flow::Low_lvl_packet::serialize_to_raw_data_and_log()</a>.</p>
 <div class="dynheader">
@@ -1221,7 +1224,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aa132928b364caefca5c3821e
 <div class="line">                   boost::asio::buffer(bytes), <span class="comment">// Turn a single memory array into a buffer sequence.</span></div>
 <div class="line">                   <span class="stringliteral">&quot;  &quot;</span>);</div>
 <div class="line">  &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>; <span class="comment">// This will be on its own line at the end.</span></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_aa132928b364caefca5c3821e019924bf"><div class="ttname"><a href="namespaceflow_1_1util.html#aa132928b364caefca5c3821e019924bf">flow::util::buffers_to_ostream</a></div><div class="ttdeci">std::ostream &amp; buffers_to_ostream(std::ostream &amp;os, const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Writes a multi- or single-line string representation of the provided binary data to an output stream,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00388">util.hpp:388</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_aa132928b364caefca5c3821e019924bf"><div class="ttname"><a href="namespaceflow_1_1util.html#aa132928b364caefca5c3821e019924bf">flow::util::buffers_to_ostream</a></div><div class="ttdeci">std::ostream &amp; buffers_to_ostream(std::ostream &amp;os, const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Writes a multi- or single-line string representation of the provided binary data to an output stream,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00413">util.hpp:413</a></div></div>
 </div><!-- fragment --><p >See also <a class="el" href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2" title="Identical to buffers_to_ostream() but returns an std::string instead of writing to a given ostream.">buffers_dump_string()</a> which returns a string and can thus be more easily used directly inside <a class="el" href="log_8hpp.html#a07561c1c3f16b6c2c7335a09e25298c9" title="Logs a DATA message into flow::log::Logger *get_logger() with flow::log::Component get_log_component(...">FLOW_LOG_DATA()</a> and similar log macros.</p>
 <h3>Performance</h3>
 <p >This thing is slow... it's not trying to be fast and can't be all that fast anyway. As usual, though, if used in <a class="el" href="log_8hpp.html#a07561c1c3f16b6c2c7335a09e25298c9" title="Logs a DATA message into flow::log::Logger *get_logger() with flow::log::Component get_log_component(...">FLOW_LOG_DATA()</a> (etc.) its slowness will only come into play if the log filter passes which (esp. for log::Severity::S_DATA) it usually won't.</p>
@@ -1241,9 +1244,9 @@ <h3>Performance</h3>
 <div class="line">              &lt;&lt; <a class="code hl_function" href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">buffers_dump_string</a>(boost::asio::buffer(bytes), <span class="stringliteral">&quot;  &quot;</span>) <span class="comment">// Intermediate+copy, slow....</span></div>
 <div class="line">              &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
 <div class="line"><span class="comment">// flow::util::ostream_op_string() is a bit of an improvement but still. :-)</span></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="alog_8hpp_html_a325fdd4b5cf0be49b37d3b7b7c29070d"><div class="ttname"><a href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a></div><div class="ttdeci">#define FLOW_LOG_INFO(ARG_stream_fragment)</div><div class="ttdoc">Logs an INFO message into flow::log::Logger *get_logger() with flow::log::Component get_log_component...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l00197">log.hpp:197</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a16357344c21456b86b7de3085e2661a2"><div class="ttname"><a href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">flow::util::buffers_dump_string</a></div><div class="ttdeci">std::string buffers_dump_string(const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Identical to buffers_to_ostream() but returns an std::string instead of writing to a given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00481">util.hpp:481</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a16357344c21456b86b7de3085e2661a2"><div class="ttname"><a href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">flow::util::buffers_dump_string</a></div><div class="ttdeci">std::string buffers_dump_string(const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Identical to buffers_to_ostream() but returns an std::string instead of writing to a given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00506">util.hpp:506</a></div></div>
 </div><!-- fragment --><h3>Rationale</h3>
 <p >The reason it returns <code>os</code> and takes a reference-to-mutable instead of the customary (for this project's style, to indicate modification potential at call sites) pointer-to-mutable is in order to be <code>bind()</code>able in such a way as to make an <code>ostream</code> manipulator. In the example above we use a lambda instead of <code>bind()</code> however.</p>
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+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00413">413</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="util_2util_8hpp_source.html#l00481">buffers_dump_string()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00925">flow::net_flow::Syn_packet::to_ostream()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00968">flow::net_flow::Data_packet::to_ostream()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="util_2util_8hpp_source.html#l00506">buffers_dump_string()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00925">flow::net_flow::Syn_packet::to_ostream()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00968">flow::net_flow::Data_packet::to_ostream()</a>.</p>
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 <dl class="section return"><dt>Returns</dt><dd>Ceiling of <code>(dividend / divisor)</code>. </dd></dl>
 
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+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00258">258</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
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-<p class="reference">Referenced by <a class="el" href="asio_2server__socket_8hpp_source.html#l00260">flow::net_flow::asio::Server_socket::async_accept()</a>, <a class="el" href="asio_2peer__socket_8hpp_source.html#l00411">flow::net_flow::asio::Peer_socket::async_receive()</a>, <a class="el" href="asio_2peer__socket_8hpp_source.html#l00446">flow::net_flow::asio::Peer_socket::async_send()</a>, <a class="el" href="server__socket_8hpp_source.html#l00434">flow::net_flow::Server_socket::sync_accept()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02591">flow::net_flow::Peer_socket::sync_receive()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02497">flow::net_flow::Peer_socket::sync_send()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="asio_2server__socket_8hpp_source.html#l00260">flow::net_flow::asio::Server_socket::async_accept()</a>, <a class="el" href="asio_2peer__socket_8hpp_source.html#l00411">flow::net_flow::asio::Peer_socket::async_receive()</a>, <a class="el" href="asio_2peer__socket_8hpp_source.html#l00446">flow::net_flow::asio::Peer_socket::async_send()</a>, <a class="el" href="server__socket_8hpp_source.html#l00434">flow::net_flow::Server_socket::sync_accept()</a>, <a class="el" href="peer__socket_8hpp_source.html#l02586">flow::net_flow::Peer_socket::sync_receive()</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02492">flow::net_flow::Peer_socket::sync_send()</a>.</p>
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+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00360">360</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
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+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00352">352</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00327">feed_args_to_ostream()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00352">feed_args_to_ostream()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="util_2util_8hpp_source.html#l00327">feed_args_to_ostream()</a>, and <a class="el" href="util_2util_8hpp_source.html#l00342">ostream_op_to_string()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="util_2util_8hpp_source.html#l00352">feed_args_to_ostream()</a>, and <a class="el" href="util_2util_8hpp_source.html#l00367">ostream_op_to_string()</a>.</p>
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-<p class="reference">References <a class="el" href="util_2detail_2util_8hpp_source.html#l00131">FLOW_UTIL_WHERE_AM_I_FROM_ARGS_TO_ARGS</a>, and <a class="el" href="util_2util_8hpp_source.html#l00342">ostream_op_to_string()</a>.</p>
+<p class="reference">References <a class="el" href="util_2detail_2util_8hpp_source.html#l00131">FLOW_UTIL_WHERE_AM_I_FROM_ARGS_TO_ARGS</a>, and <a class="el" href="util_2util_8hpp_source.html#l00367">ostream_op_to_string()</a>.</p>
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 <dl class="section return"><dt>Returns</dt><dd><code>true</code> if and only if <code>val</code> is in [<code>min_val</code>, <code>max_val</code>), i.e., <code>min_val</code> &lt;= <code>val</code> &lt; <code>max_val</code>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00262">262</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00287">287</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="basic__blob_8hpp_source.html#l02437">flow::util::Basic_blob&lt; Allocator, S_SHARING_ALLOWED &gt;::derefable_iterator()</a>, <a class="el" href="port__space_8cpp_source.html#l00067">flow::net_flow::Port_space::is_service_port()</a>, and <a class="el" href="port__space_8cpp_source.html#l00175">flow::net_flow::Port_space::return_port()</a>.</p>
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 <dl class="section return"><dt>Returns</dt><dd><code>true</code> if and only if <code>val</code> is in [<code>min_val</code>, <code>max_val</code>]. </dd></dl>
 
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+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00271">271</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="info_8cpp_source.html#l00322">flow::net_flow::Peer_socket_info::output()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06239">flow::net_flow::Node::sock_validate_options()</a>, and <a class="el" href="basic__blob_8hpp_source.html#l02430">flow::util::Basic_blob&lt; Allocator, S_SHARING_ALLOWED &gt;::valid_iterator()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="info_8cpp_source.html#l00322">flow::net_flow::Peer_socket_info::output()</a>, <a class="el" href="peer__socket_8cpp_source.html#l06245">flow::net_flow::Node::sock_validate_options()</a>, and <a class="el" href="basic__blob_8hpp_source.html#l02430">flow::util::Basic_blob&lt; Allocator, S_SHARING_ALLOWED &gt;::valid_iterator()</a>.</p>
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-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l06239">flow::net_flow::Node::sock_validate_options()</a>.</p>
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-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02545">flow::net_flow::Node::categorize_individual_ack()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02551">flow::net_flow::Node::categorize_individual_ack()</a>.</p>
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-<p class="reference">Referenced by <a class="el" href="option__set_8hpp_source.html#l02042">flow::cfg::Option_set&lt; Value_set &gt;::canonicalize_candidate()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04005">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="drop__timer_8cpp_source.html#l00118">flow::net_flow::Drop_timer::end_contemporaneous_events()</a>, <a class="el" href="event__set_8cpp_source.html#l01129">flow::net_flow::Node::event_set_all_check_delta()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">flow::net_flow::Node::handle_syn_to_listening_server()</a>, <a class="el" href="config_8hpp_source.html#l00971">flow::log::Config::init_component_names()</a>, <a class="el" href="config_8hpp_source.html#l00929">flow::log::Config::init_component_to_union_idx_mapping()</a>, <a class="el" href="server__socket_8cpp_source.html#l00218">flow::net_flow::Node::listen_worker()</a>, <a class="el" href="drop__timer_8cpp_source.html#l00072">flow::net_flow::Drop_timer::on_ack()</a>, and <a class="el" href="option__set_8hpp_source.html#l01784">flow::cfg::Option_set&lt; Value_set &gt;::parse_config_file()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="option__set_8hpp_source.html#l02042">flow::cfg::Option_set&lt; Value_set &gt;::canonicalize_candidate()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04011">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="drop__timer_8cpp_source.html#l00118">flow::net_flow::Drop_timer::end_contemporaneous_events()</a>, <a class="el" href="event__set_8cpp_source.html#l01129">flow::net_flow::Node::event_set_all_check_delta()</a>, <a class="el" href="server__socket_8cpp_source.html#l00433">flow::net_flow::Node::handle_syn_to_listening_server()</a>, <a class="el" href="config_8hpp_source.html#l00971">flow::log::Config::init_component_names()</a>, <a class="el" href="config_8hpp_source.html#l00929">flow::log::Config::init_component_to_union_idx_mapping()</a>, <a class="el" href="server__socket_8cpp_source.html#l00218">flow::net_flow::Node::listen_worker()</a>, <a class="el" href="drop__timer_8cpp_source.html#l00072">flow::net_flow::Drop_timer::on_ack()</a>, and <a class="el" href="option__set_8hpp_source.html#l01784">flow::cfg::Option_set&lt; Value_set &gt;::parse_config_file()</a>.</p>
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 <p class="reference">Referenced by <a class="el" href="verbosity__config_8cpp_source.html#l00157">flow::log::Verbosity_config::apply_to_config()</a>, <a class="el" href="checkpt__timer_8cpp_source.html#l00029">flow::perf::Checkpointing_timer::Checkpointing_timer()</a>, <a class="el" href="cfg__manager_8hpp_source.html#l01471">flow::cfg::Config_manager&lt; S_d_value_set &gt;::Config_manager()</a>, <a class="el" href="concurrent__task__loop_8cpp_source.html#l00078">flow::async::optimize_pinning_in_thread_pool()</a>, <a class="el" href="verbosity__config_8cpp_source.html#l00044">flow::log::Verbosity_config::parse()</a>, <a class="el" href="option__set_8hpp_source.html#l01784">flow::cfg::Option_set&lt; Value_set &gt;::parse_config_file()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00098">flow::async::Segregated_thread_task_loop::start()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00081">flow::async::Cross_thread_task_loop::start()</a>, <a class="el" href="log_8cpp_source.html#l00036">flow::log::Logger::this_thread_set_logged_nickname()</a>, <a class="el" href="option__set_8cpp_source.html#l00106">boost::filesystem::validate()</a>, <a class="el" href="option__set_8hpp_source.html#l02237">flow::cfg::value_set_member_id_to_opt_name_keyed()</a>, and <a class="el" href="option__set_8hpp_source.html#l02166">flow::cfg::value_to_ostream()</a>.</p>
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-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00327">feed_args_to_ostream()</a>, and <a class="el" href="string__ostream_8cpp_source.html#l00033">flow::util::String_ostream::os()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00352">feed_args_to_ostream()</a>, and <a class="el" href="string__ostream_8cpp_source.html#l00033">flow::util::String_ostream::os()</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="event__set_8cpp_source.html#l00761">flow::net_flow::Event_set::ev_type_to_socks_map_sizes_to_str()</a>, <a class="el" href="detail_2util_8cpp_source.html#l00027">get_where_am_i_str()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01904">flow::net_flow::Node::log_rcv_window()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03635">flow::net_flow::Node::log_snd_window()</a>, <a class="el" href="net__flow_2error_2error_8cpp_source.html#l00107">flow::net_flow::error::Category::message()</a>, <a class="el" href="clock__type_8cpp_source.html#l00093">flow::perf::Duration_set::operator&lt;&lt;()</a>, <a class="el" href="util_2util_8hpp_source.html#l00356">ostream_op_string()</a>, <a class="el" href="event__set_8cpp_source.html#l00777">flow::net_flow::Event_set::sock_as_any_to_str()</a>, and <a class="el" href="node_8cpp_source.html#l00113">flow::net_flow::Node::this_thread_init_logger_setup()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="event__set_8cpp_source.html#l00761">flow::net_flow::Event_set::ev_type_to_socks_map_sizes_to_str()</a>, <a class="el" href="detail_2util_8cpp_source.html#l00027">get_where_am_i_str()</a>, <a class="el" href="peer__socket_8cpp_source.html#l01910">flow::net_flow::Node::log_rcv_window()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03641">flow::net_flow::Node::log_snd_window()</a>, <a class="el" href="net__flow_2error_2error_8cpp_source.html#l00107">flow::net_flow::error::Category::message()</a>, <a class="el" href="clock__type_8cpp_source.html#l00093">flow::perf::Duration_set::operator&lt;&lt;()</a>, <a class="el" href="util_2util_8hpp_source.html#l00381">ostream_op_string()</a>, <a class="el" href="event__set_8cpp_source.html#l00777">flow::net_flow::Event_set::sock_as_any_to_str()</a>, and <a class="el" href="node_8cpp_source.html#l00113">flow::net_flow::Node::this_thread_init_logger_setup()</a>.</p>
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@@ -2406,7 +2409,7 @@ <h3>Features lost vs. <a class="el" href="namespaceflow_1_1util.html#ae7416d64d2
 
 <p class="reference">References <a class="el" href="uniq__id__holder_8cpp_source.html#l00058">flow::util::Unique_id_holder::create_unique_id()</a>, <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00405">FLOW_LOG_SET_CONTEXT</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, and <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05397">flow::net_flow::Node::async_rcv_wnd_recovery()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00255">flow::net_flow::Node::async_wait_latency_then_handle_incoming()</a>, <a class="el" href="node_8cpp_source.html#l01117">flow::net_flow::Node::perform_regular_infrequent_tasks()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00319">flow::async::Cross_thread_task_loop::schedule_from_now()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00374">flow::async::Segregated_thread_task_loop::schedule_from_now_impl()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04323">flow::net_flow::Node::setup_connection_timers()</a>, and <a class="el" href="node_8cpp_source.html#l00151">flow::net_flow::Node::worker_run()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l05403">flow::net_flow::Node::async_rcv_wnd_recovery()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00255">flow::net_flow::Node::async_wait_latency_then_handle_incoming()</a>, <a class="el" href="node_8cpp_source.html#l01117">flow::net_flow::Node::perform_regular_infrequent_tasks()</a>, <a class="el" href="x__thread__task__loop_8cpp_source.html#l00319">flow::async::Cross_thread_task_loop::schedule_from_now()</a>, <a class="el" href="segregated__thread__task__loop_8cpp_source.html#l00374">flow::async::Segregated_thread_task_loop::schedule_from_now_impl()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04329">flow::net_flow::Node::setup_connection_timers()</a>, and <a class="el" href="node_8cpp_source.html#l00151">flow::net_flow::Node::worker_run()</a>.</p>
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 <p class="reference">References <a class="el" href="error_2error_8hpp_source.html#l00269">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00405">FLOW_LOG_SET_CONTEXT</a>, and <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="asio_2node_8hpp_source.html#l00581">flow::net_flow::asio::Node::async_op()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04447">flow::net_flow::Node::cancel_timers()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05485">flow::net_flow::Node::receive_wnd_recovery_data_received()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="asio_2node_8hpp_source.html#l00581">flow::net_flow::asio::Node::async_op()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04453">flow::net_flow::Node::cancel_timers()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l05491">flow::net_flow::Node::receive_wnd_recovery_data_received()</a>.</p>
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-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04323">flow::net_flow::Node::setup_connection_timers()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04329">flow::net_flow::Node::setup_connection_timers()</a>.</p>
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 <p class="reference">References <a class="el" href="log_8hpp_source.html#l00405">FLOW_LOG_SET_CONTEXT</a>, and <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04323">flow::net_flow::Node::setup_connection_timers()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04329">flow::net_flow::Node::setup_connection_timers()</a>.</p>
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   </dd>
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-<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00379">379</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00404">404</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00367">sequence_to_inverted_lookup_map()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00392">sequence_to_inverted_lookup_map()</a>.</p>
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   </dd>
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-<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00366">366</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00391">391</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="util_2util_8hpp_source.html#l00379">sequence_to_inverted_lookup_map()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="util_2util_8hpp_source.html#l00404">sequence_to_inverted_lookup_map()</a>.</p>
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@@ -2811,7 +2814,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a09a032f8e1e77a3afc0b7df1
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+<div class="ttc" id="anamespaceflow_1_1util_html_a09a032f8e1e77a3afc0b7df115a773e1"><div class="ttname"><a href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">flow::util::setup_auto_cleanup</a></div><div class="ttdeci">Auto_cleanup setup_auto_cleanup(const Cleanup_func &amp;func)</div><div class="ttdoc">Provides a way to execute arbitrary (cleanup) code at the exit of the current block.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00307">util.hpp:307</a></div></div>
 </div><!-- fragment --><dl class="todo"><dt><b><a class="el" href="todo.html#_todo000170">Todo:</a></b></dt><dd><a class="el" href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1" title="Provides a way to execute arbitrary (cleanup) code at the exit of the current block.">setup_auto_cleanup()</a> should take a function via move semantics.</dd></dl>
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 </dl>
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+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00307">307</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02061">flow::net_flow::Node::handle_accumulated_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04206">flow::net_flow::Node::sync_connect_impl()</a>, and <a class="el" href="node_8hpp_source.html#l03977">flow::net_flow::Node::sync_op()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02067">flow::net_flow::Node::handle_accumulated_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l04212">flow::net_flow::Node::sync_connect_impl()</a>, and <a class="el" href="node_8hpp_source.html#l03977">flow::net_flow::Node::sync_op()</a>.</p>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd>How many <code>To</code>s are sufficient to encode <code>num_from</code> <code>From</code>s verbatim? </dd></dl>
 
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+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00346">346</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
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 <div class="line"><a class="code hl_function" href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">subtract_with_floor</a>(&amp;t, x) &amp;&amp;</div>
 <div class="line">  <a class="code hl_function" href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">subtract_with_floor</a>(&amp;t, long_computation()) &amp;&amp;</div>
 <div class="line">  <a class="code hl_function" href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">subtract_with_floor</a>(&amp;t, another_long_computation());</div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a34ed70fa4de81a4fdb9234bfb5a3a914"><div class="ttname"><a href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">flow::util::subtract_with_floor</a></div><div class="ttdeci">bool subtract_with_floor(Minuend *minuend, const Subtrahend &amp;subtrahend, const Minuend &amp;floor)</div><div class="ttdoc">Performs *minuend -= subtrahend, subject to a floor of floor.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00299">util.hpp:299</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a34ed70fa4de81a4fdb9234bfb5a3a914"><div class="ttname"><a href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">flow::util::subtract_with_floor</a></div><div class="ttdeci">bool subtract_with_floor(Minuend *minuend, const Subtrahend &amp;subtrahend, const Minuend &amp;floor)</div><div class="ttdoc">Performs *minuend -= subtrahend, subject to a floor of floor.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00324">util.hpp:324</a></div></div>
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     <tr><td class="paramname">Minuend</td><td>Numeric type. </td></tr>
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 </dl>
 <dl class="section return"><dt>Returns</dt><dd><code>true</code> if <code>*minuend == floor</code> at function exit; <code>false</code> if <code>*minuend &gt; floor</code>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00299">299</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00324">324</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l01320">flow::net_flow::Node::sock_data_to_reassembly_q_unless_overflow()</a>.</p>
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@@ -3256,14 +3259,14 @@ <h2 class="memtitle"><span class="permalink"><a href="#a0f681afaf67a0f917cf43a7a
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+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00237">237</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
 
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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@@ -311,13 +311,13 @@
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 <div class="ttc" id="alog_8hpp_html"><div class="ttname"><a href="log_8hpp.html">log.hpp</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html"><div class="ttname"><a href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div><div class="ttdoc">Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8cpp_source.html#l00024">node.cpp:25</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
 <div class="ttc" id="anet__flow__fwd_8hpp_html"><div class="ttname"><a href="net__flow__fwd_8hpp.html">net_flow_fwd.hpp</a></div></div>
 <div class="ttc" id="arandom_8hpp_html"><div class="ttname"><a href="random_8hpp.html">random.hpp</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/net__flow_2error_2error_8cpp.html b/doc/flow_doc/generated/html_full/net__flow_2error_2error_8cpp.html
index c154ad53d..5fa4dd7ce 100644
--- a/doc/flow_doc/generated/html_full/net__flow_2error_2error_8cpp.html
+++ b/doc/flow_doc/generated/html_full/net__flow_2error_2error_8cpp.html
@@ -107,7 +107,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
 </body>
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diff --git a/doc/flow_doc/generated/html_full/net__flow_2error_2error_8cpp_source.html b/doc/flow_doc/generated/html_full/net__flow_2error_2error_8cpp_source.html
index 9a3b40768..cb7d4b25b 100644
--- a/doc/flow_doc/generated/html_full/net__flow_2error_2error_8cpp_source.html
+++ b/doc/flow_doc/generated/html_full/net__flow_2error_2error_8cpp_source.html
@@ -303,15 +303,15 @@
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1error_html_a18e13de77b119ea0f2be411490859482ae90ff1c87f2393dd6b14232b159f02b2"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae90ff1c87f2393dd6b14232b159f02b2">flow::net_flow::error::Code::S_INTERNAL_ERROR_PORT_COLLISION</a></div><div class="ttdeci">@ S_INTERNAL_ERROR_PORT_COLLISION</div><div class="ttdoc">Internal error: Ephemeral port double reservation allowed.</div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1error_html_a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::Code::S_NODE_NOT_RUNNING</a></div><div class="ttdeci">@ S_NODE_NOT_RUNNING</div><div class="ttdoc">Node not running.</div></div>
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-<div class="ttc" id="anamespaceflow_1_1util_html_a8afd30c50bcd670d45442df49d1da484"><div class="ttname"><a href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">flow::util::ostream_op_to_string</a></div><div class="ttdeci">void ostream_op_to_string(std::string *target_str, T const &amp;... ostream_args)</div><div class="ttdoc">Writes to the specified string, as if the given arguments were each passed, via &lt;&lt; in sequence,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00342">util.hpp:342</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a8afd30c50bcd670d45442df49d1da484"><div class="ttname"><a href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">flow::util::ostream_op_to_string</a></div><div class="ttdeci">void ostream_op_to_string(std::string *target_str, T const &amp;... ostream_args)</div><div class="ttdoc">Writes to the specified string, as if the given arguments were each passed, via &lt;&lt; in sequence,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00367">util.hpp:367</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
 <div class="ttc" id="anet__flow_2error_2error_8hpp_html"><div class="ttname"><a href="net__flow_2error_2error_8hpp.html">error.hpp</a></div></div>
 <div class="ttc" id="aport__space_8hpp_html"><div class="ttname"><a href="port__space_8hpp.html">port_space.hpp</a></div></div>
 <div class="ttc" id="autil_2util_8hpp_html"><div class="ttname"><a href="util_2util_8hpp.html">util.hpp</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/net__flow_2error_2error_8hpp.html b/doc/flow_doc/generated/html_full/net__flow_2error_2error_8hpp.html
index adfe83b92..7f0e18fd0 100644
--- a/doc/flow_doc/generated/html_full/net__flow_2error_2error_8hpp.html
+++ b/doc/flow_doc/generated/html_full/net__flow_2error_2error_8hpp.html
@@ -153,7 +153,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/net__flow_2error_2error_8hpp_source.html b/doc/flow_doc/generated/html_full/net__flow_2error_2error_8hpp_source.html
index 5f0b59177..c4117b357 100644
--- a/doc/flow_doc/generated/html_full/net__flow_2error_2error_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/net__flow_2error_2error_8hpp_source.html
@@ -356,11 +356,11 @@
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1error_html_a18e13de77b119ea0f2be411490859482ae90ff1c87f2393dd6b14232b159f02b2"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae90ff1c87f2393dd6b14232b159f02b2">flow::net_flow::error::Code::S_INTERNAL_ERROR_PORT_COLLISION</a></div><div class="ttdeci">@ S_INTERNAL_ERROR_PORT_COLLISION</div><div class="ttdoc">Internal error: Ephemeral port double reservation allowed.</div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1error_html_a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">flow::net_flow::error::Code::S_NODE_NOT_RUNNING</a></div><div class="ttdeci">@ S_NODE_NOT_RUNNING</div><div class="ttdoc">Node not running.</div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1error_html_a6d35c37eb70a494bb27aa807c41de176"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1error.html#a6d35c37eb70a494bb27aa807c41de176">flow::net_flow::error::make_error_code</a></div><div class="ttdeci">Error_code make_error_code(Code err_code)</div><div class="ttdoc">Given a Code enum value, creates a lightweight flow::Error_code (a/k/a boost.system error_code) repre...</div><div class="ttdef"><b>Definition:</b> <a href="net__flow_2error_2error_8cpp_source.html#l00093">error.cpp:93</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/net__flow__fwd_8hpp.html b/doc/flow_doc/generated/html_full/net__flow__fwd_8hpp.html
index b33b1d8a0..17f83f5b0 100644
--- a/doc/flow_doc/generated/html_full/net__flow__fwd_8hpp.html
+++ b/doc/flow_doc/generated/html_full/net__flow__fwd_8hpp.html
@@ -149,7 +149,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/net__flow__fwd_8hpp_source.html b/doc/flow_doc/generated/html_full/net__flow__fwd_8hpp_source.html
index 05cff036e..9ca931505 100644
--- a/doc/flow_doc/generated/html_full/net__flow__fwd_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/net__flow__fwd_8hpp_source.html
@@ -327,7 +327,7 @@
 <div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span> </div>
 <div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span>} <span class="comment">// namespace flow::net_flow::asio</span></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket__send__stats_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket__send__stats.html">flow::net_flow::Peer_socket_send_stats</a></div><div class="ttdoc">A data store that keeps stats about the outgoing direction of a Peer_socket connection to another Flo...</div><div class="ttdef"><b>Definition:</b> <a href="info_8hpp_source.html#l00285">info.hpp:286</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00215">peer_socket.hpp:223</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00216">peer_socket.hpp:224</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Server__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Server__socket.html">flow::net_flow::Server_socket</a></div><div class="ttdoc">A server socket able to listen on a single Flow port for incoming connections and return peer sockets...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8hpp_source.html#l00118">server_socket.hpp:126</a></div></div>
 <div class="ttc" id="acommon_8hpp_html"><div class="ttname"><a href="common_8hpp.html">common.hpp</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_1_1asio_html"><div class="ttname"><a href="namespaceflow_1_1net__flow_1_1asio.html">flow::net_flow::asio</a></div><div class="ttdoc">Contains classes that add boost.asio integration to the main Flow-protocol classes such as net_flow::...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8cpp_source.html#l00024">node.cpp:25</a></div></div>
@@ -349,7 +349,7 @@
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/net__flow__util_8cpp.html b/doc/flow_doc/generated/html_full/net__flow__util_8cpp.html
index f95b7aa93..da7dab722 100644
--- a/doc/flow_doc/generated/html_full/net__flow__util_8cpp.html
+++ b/doc/flow_doc/generated/html_full/net__flow__util_8cpp.html
@@ -95,7 +95,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/net__flow__util_8cpp_source.html b/doc/flow_doc/generated/html_full/net__flow__util_8cpp_source.html
index e52ffffe3..f940d70b1 100644
--- a/doc/flow_doc/generated/html_full/net__flow__util_8cpp_source.html
+++ b/doc/flow_doc/generated/html_full/net__flow__util_8cpp_source.html
@@ -101,14 +101,14 @@
 <div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span>}</div>
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-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="adetail_2net__flow__fwd_8hpp_html"><div class="ttname"><a href="detail_2net__flow__fwd_8hpp.html">net_flow_fwd.hpp</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html"><div class="ttname"><a href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div><div class="ttdoc">Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8cpp_source.html#l00024">node.cpp:25</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_ab9f537c84f77e9b8fa742fc5dc6d5693"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#ab9f537c84f77e9b8fa742fc5dc6d5693">flow::net_flow::operator&lt;&lt;</a></div><div class="ttdeci">std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const Congestion_control_selector::Strategy_choice &amp;strategy_choice)</div><div class="ttdoc">Serializes a Peer_socket_options::Congestion_control_strategy_choice enum to a standard ostream – the...</div><div class="ttdef"><b>Definition:</b> <a href="cong__ctl_8cpp_source.html#l00146">cong_ctl.cpp:146</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/node_8cpp.html b/doc/flow_doc/generated/html_full/node_8cpp.html
index d85bf9b60..9b63a7ad6 100644
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+++ b/doc/flow_doc/generated/html_full/node_8cpp.html
@@ -100,7 +100,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
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diff --git a/doc/flow_doc/generated/html_full/node_8cpp_source.html b/doc/flow_doc/generated/html_full/node_8cpp_source.html
index 29752d433..87d8fb368 100644
--- a/doc/flow_doc/generated/html_full/node_8cpp_source.html
+++ b/doc/flow_doc/generated/html_full/node_8cpp_source.html
@@ -1247,7 +1247,7 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html">flow::net_flow::Node</a></div><div class="ttdoc">An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00933">node.hpp:937</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a06e4cea2eefa1b06975864f09740c96b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a06e4cea2eefa1b06975864f09740c96b">flow::net_flow::Node::handle_data_to_established</a></div><div class="ttdeci">void handle_data_to_established(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, boost::shared_ptr&lt; Data_packet &gt; packet, bool syn_rcvd_qd_packet)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, low-level DATA packet delivered to the given peer so...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00560">peer_socket.cpp:560</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0fba26db0055a969f3869014bc5c2bfc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0fba26db0055a969f3869014bc5c2bfc">flow::net_flow::Node::perform_accumulated_on_recv_tasks</a></div><div class="ttdeci">void perform_accumulated_on_recv_tasks()</div><div class="ttdoc">Performs all tasks to be performed at the end of low_lvl_recv_and_handle() or async part of async_wai...</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00375">node.cpp:375</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a136d9ccd25634cee2955ea79ae829006"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a136d9ccd25634cee2955ea79ae829006">flow::net_flow::Node::handle_accumulated_acks</a></div><div class="ttdeci">void handle_accumulated_acks(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that handles any incoming acknowledgments and rcv_wnd u...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02061">peer_socket.cpp:2061</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a136d9ccd25634cee2955ea79ae829006"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a136d9ccd25634cee2955ea79ae829006">flow::net_flow::Node::handle_accumulated_acks</a></div><div class="ttdeci">void handle_accumulated_acks(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that handles any incoming acknowledgments and rcv_wnd u...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02067">peer_socket.cpp:2067</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a159b9c2b9a8a969f5e3715341c433aec"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a159b9c2b9a8a969f5e3715341c433aec">flow::net_flow::Node::options</a></div><div class="ttdeci">Node_options options() const</div><div class="ttdoc">Copies this Node's option set and returns that copy.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l01107">node.cpp:1107</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1699dfdaf3e5ebe1b1d715a9c306d116"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1699dfdaf3e5ebe1b1d715a9c306d116">flow::net_flow::Node::handle_incoming</a></div><div class="ttdeci">void handle_incoming(util::Blob *packet_data, const util::Udp_endpoint &amp;low_lvl_remote_endpoint)</div><div class="ttdoc">Handles a just-received, not-yet-deserialized low-level packet.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00426">node.cpp:426</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a16c53c4848ea976b075a0b56f33eb118"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a16c53c4848ea976b075a0b56f33eb118">flow::net_flow::Node::~Node</a></div><div class="ttdeci">~Node() override</div><div class="ttdoc">Destroys Node.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00139">node.cpp:139</a></div></div>
@@ -1258,16 +1258,16 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a29d02f9e302c7b06288ff1c644fa8d65"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a29d02f9e302c7b06288ff1c644fa8d65">flow::net_flow::Node::handle_syn_ack_ack_to_syn_rcvd</a></div><div class="ttdeci">void handle_syn_ack_ack_to_syn_rcvd(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, boost::shared_ptr&lt; const Syn_ack_ack_packet &gt; syn_ack_ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed low-level SYN_ACK_ACK packet delivered to the given p...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00583">server_socket.cpp:583</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2f97b363281b79ef4f399789442c84de"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2f97b363281b79ef4f399789442c84de">flow::net_flow::Node::S_REGULAR_INFREQUENT_TASKS_PERIOD</a></div><div class="ttdeci">static const Fine_duration S_REGULAR_INFREQUENT_TASKS_PERIOD</div><div class="ttdoc">Time interval between performing &quot;infrequent periodic tasks,&quot; such as stat logging.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03693">node.hpp:3693</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a43c42121d48a55a43a48e3a84bd10595"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a43c42121d48a55a43a48e3a84bd10595">flow::net_flow::Node::opt</a></div><div class="ttdeci">Opt_type opt(const Opt_type &amp;opt_val_ref) const</div><div class="ttdoc">Obtain a copy of the value of a given option in a thread-safe manner.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l04180">node.hpp:4180</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a446ee7115c70cbcd48e3897d32fc0276"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276">flow::net_flow::Node::sock_validate_options</a></div><div class="ttdeci">bool sock_validate_options(const Peer_socket_options &amp;opts, const Peer_socket_options *prev_opts, Error_code *err_code) const</div><div class="ttdoc">Analogous to validate_options() but checks per-socket options instead of per-Node options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06239">peer_socket.cpp:6239</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a446ee7115c70cbcd48e3897d32fc0276"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276">flow::net_flow::Node::sock_validate_options</a></div><div class="ttdeci">bool sock_validate_options(const Peer_socket_options &amp;opts, const Peer_socket_options *prev_opts, Error_code *err_code) const</div><div class="ttdoc">Analogous to validate_options() but checks per-socket options instead of per-Node options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06245">peer_socket.cpp:6245</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a449ef757abee4c5d12f8fc62a5ca66b4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a449ef757abee4c5d12f8fc62a5ca66b4">flow::net_flow::Node::m_opts_mutex</a></div><div class="ttdeci">Options_mutex m_opts_mutex</div><div class="ttdoc">The mutex protecting m_opts.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03707">node.hpp:3707</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a45583714bc147300158f074ecacce0fd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a45583714bc147300158f074ecacce0fd">flow::net_flow::Node::handle_accumulated_pending_acks</a></div><div class="ttdeci">void handle_accumulated_pending_acks(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that handles any additional individual outgoing acknowl...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01638">peer_socket.cpp:1638</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a45583714bc147300158f074ecacce0fd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a45583714bc147300158f074ecacce0fd">flow::net_flow::Node::handle_accumulated_pending_acks</a></div><div class="ttdeci">void handle_accumulated_pending_acks(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that handles any additional individual outgoing acknowl...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01644">peer_socket.cpp:1644</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a4bd7b471dd6cd3e3570930b48d30e577"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a4bd7b471dd6cd3e3570930b48d30e577">flow::net_flow::Node::max_block_size</a></div><div class="ttdeci">size_t max_block_size() const</div><div class="ttdoc">The maximum number of bytes of user data per received or sent block on connections generated from thi...</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l01112">node.cpp:1112</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a4cb3dcb90f1dfc44a4343c0e89ce6b83"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a4cb3dcb90f1dfc44a4343c0e89ce6b83">flow::net_flow::Node::local_low_lvl_endpoint</a></div><div class="ttdeci">const util::Udp_endpoint &amp; local_low_lvl_endpoint() const</div><div class="ttdoc">Return the UDP endpoint (IP address and UDP port) which will be used for receiving incoming and sendi...</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00369">node.cpp:369</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a5b056ed753b832458f44f537acfe86d7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a5b056ed753b832458f44f537acfe86d7">flow::net_flow::Node::worker_run</a></div><div class="ttdeci">void worker_run(const util::Udp_endpoint low_lvl_endpoint)</div><div class="ttdoc">Worker thread W (main event loop) body.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00151">node.cpp:151</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a61f87144f19e908ffb981f3bff91938e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a61f87144f19e908ffb981f3bff91938e">flow::net_flow::Node::m_event_loop_ready_result</a></div><div class="ttdeci">boost::unique_future&lt; Error_code &gt; m_event_loop_ready_result</div><div class="ttdoc">The future object through which the non-W thread waits for m_event_loop_ready to be set to success/fa...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03883">node.hpp:3883</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6727ca42e15c8627c1ed3d94e6dd7a53"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6727ca42e15c8627c1ed3d94e6dd7a53">flow::net_flow::Node::event_set_close_worker</a></div><div class="ttdeci">void event_set_close_worker(Event_set::Ptr event_set)</div><div class="ttdoc">The guts of event_set_close_worker_check_state(): same thing, but assumes Event_set::state() == Event...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01332">event_set.cpp:1332</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a74a6a82a1390a76e985593969fb47184"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a74a6a82a1390a76e985593969fb47184">flow::net_flow::Node::async_no_sock_low_lvl_rst_send</a></div><div class="ttdeci">void async_no_sock_low_lvl_rst_send(Low_lvl_packet::Const_ptr causing_packet, const util::Udp_endpoint &amp;low_lvl_remote_endpoint)</div><div class="ttdoc">Sends an RST to the given UDP endpoint in response to the given incoming low-level packet that came f...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00586">low_lvl_io.cpp:586</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a755c329b9e0f2b8edb2e5b900bd2a337"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a755c329b9e0f2b8edb2e5b900bd2a337">flow::net_flow::Node::sock_log_detail</a></div><div class="ttdeci">void sock_log_detail(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Logs a verbose state report for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06435">peer_socket.cpp:6435</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a755c329b9e0f2b8edb2e5b900bd2a337"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a755c329b9e0f2b8edb2e5b900bd2a337">flow::net_flow::Node::sock_log_detail</a></div><div class="ttdeci">void sock_log_detail(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Logs a verbose state report for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06441">peer_socket.cpp:6441</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a7aadcad6c19587cd0d788570194b2afd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a7aadcad6c19587cd0d788570194b2afd">flow::net_flow::Node::S_NUM_EPHEMERAL_PORTS</a></div><div class="ttdeci">static const size_t &amp; S_NUM_EPHEMERAL_PORTS</div><div class="ttdoc">Total number of Flow &quot;ephemeral&quot; ports (ones reserved locally at random with Node::listen(S_PORT_ANY)...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00951">node.hpp:951</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a7bea132db0e45ea01b9a6bd22fd0fadb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a7bea132db0e45ea01b9a6bd22fd0fadb">flow::net_flow::Node::m_socks_with_accumulated_pending_acks</a></div><div class="ttdeci">boost::unordered_set&lt; Peer_socket::Ptr &gt; m_socks_with_accumulated_pending_acks</div><div class="ttdoc">Within a given low_lvl_recv_and_handle() or async part of async_wait_latency_then_handle_incoming() (...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03849">node.hpp:3849</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a7d9f418a3c99197e58f71ce2fff2997f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a7d9f418a3c99197e58f71ce2fff2997f">flow::net_flow::Node::m_socks_with_accumulated_acks</a></div><div class="ttdeci">boost::unordered_set&lt; Peer_socket::Ptr &gt; m_socks_with_accumulated_acks</div><div class="ttdoc">Within a given low_lvl_recv_and_handle() or async part of async_wait_latency_then_handle_incoming() c...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03867">node.hpp:3867</a></div></div>
@@ -1279,7 +1279,7 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a96b593d90c246cb2e35fc6a0834e6876"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a96b593d90c246cb2e35fc6a0834e6876">flow::net_flow::Node::S_FIRST_SERVICE_PORT</a></div><div class="ttdeci">static const flow_port_t &amp; S_FIRST_SERVICE_PORT</div><div class="ttdoc">The port number of the lowest service port, making the range of service ports [S_FIRST_SERVICE_PORT,...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00957">node.hpp:957</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a97c8679c70ac9c7dda394fdf335aaed7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a97c8679c70ac9c7dda394fdf335aaed7">flow::net_flow::Node::Options_lock</a></div><div class="ttdeci">Peer_socket::Options_lock Options_lock</div><div class="ttdoc">Short-hand for lock that acquires exclusive access to an Options_mutex.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01439">node.hpp:1439</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a99561404e8389fef08fa4ac5c16a7f36"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a99561404e8389fef08fa4ac5c16a7f36">flow::net_flow::Node::operator==</a></div><div class="ttdeci">friend bool operator==(const Socket_id &amp;lhs, const Socket_id &amp;rhs)</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l01157">node.cpp:1157</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a99836ffb51eaefa4d2cc21770461cd97"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">flow::net_flow::Node::socket_id</a></div><div class="ttdeci">static Socket_id socket_id(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Constructs the socket pair (connection ID) for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06068">peer_socket.cpp:6068</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a99836ffb51eaefa4d2cc21770461cd97"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">flow::net_flow::Node::socket_id</a></div><div class="ttdeci">static Socket_id socket_id(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Constructs the socket pair (connection ID) for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06074">peer_socket.cpp:6074</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a9b9e0224c17190e99debdfd81640bf89"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a9b9e0224c17190e99debdfd81640bf89">flow::net_flow::Node::m_low_lvl_sock</a></div><div class="ttdeci">Udp_socket m_low_lvl_sock</div><div class="ttdoc">The UDP socket used to receive low-level packets (to assemble into application layer data) and send t...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03753">node.hpp:3753</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa0f9ebea458490c37a38760c8335506c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa0f9ebea458490c37a38760c8335506c">flow::net_flow::Node::handle_syn_ack_to_syn_sent</a></div><div class="ttdeci">void handle_syn_ack_to_syn_sent(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, boost::shared_ptr&lt; const Syn_ack_packet &gt; syn_ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed low-level SYN_ACK packet delivered to the given peer ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00474">peer_socket.cpp:474</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa1b913c5c759a465a9fcaa637ddaea99"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa1b913c5c759a465a9fcaa637ddaea99">flow::net_flow::Node::S_NUM_SERVICE_PORTS</a></div><div class="ttdeci">static const size_t &amp; S_NUM_SERVICE_PORTS</div><div class="ttdoc">Total number of Flow &quot;service&quot; ports (ones that can be reserved by number with Node::listen()).</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00945">node.hpp:945</a></div></div>
@@ -1290,7 +1290,7 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aae148cec361b59237996a4b30c6624b5"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">flow::net_flow::Node::running</a></div><div class="ttdeci">bool running() const</div><div class="ttdoc">Returns true if and only if the Node is operating.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00420">node.cpp:420</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aae28990628a86a07327f49973f2390df"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aae28990628a86a07327f49973f2390df">flow::net_flow::Node::m_servs</a></div><div class="ttdeci">Port_to_server_map m_servs</div><div class="ttdoc">The server sockets this Node is currently tracking.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03798">node.hpp:3798</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab2595f47710ddb06cfb22b6710b7286e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab2595f47710ddb06cfb22b6710b7286e">flow::net_flow::Node::validate_options</a></div><div class="ttdeci">const Node_options &amp; validate_options(const Node_options &amp;opts, bool init, Error_code *err_code) const</div><div class="ttdoc">Given a new set of Node_options intended to replace (or initialize) a Node's m_opts,...</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00980">node.cpp:980</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab515b28350c43635728d6de0e37ccb94"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab515b28350c43635728d6de0e37ccb94">flow::net_flow::Node::handle_ack_to_established</a></div><div class="ttdeci">void handle_ack_to_established(Peer_socket::Ptr sock, boost::shared_ptr&lt; const Ack_packet &gt; ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, low-level ACK packet delivered to the given peer soc...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01990">peer_socket.cpp:1990</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab515b28350c43635728d6de0e37ccb94"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab515b28350c43635728d6de0e37ccb94">flow::net_flow::Node::handle_ack_to_established</a></div><div class="ttdeci">void handle_ack_to_established(Peer_socket::Ptr sock, boost::shared_ptr&lt; const Ack_packet &gt; ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, low-level ACK packet delivered to the given peer soc...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01996">peer_socket.cpp:1996</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_abb3d760b3c880b41e5a4ee7f2c13fd81"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#abb3d760b3c880b41e5a4ee7f2c13fd81">flow::net_flow::Node::handle_syn_ack_to_established</a></div><div class="ttdeci">void handle_syn_ack_to_established(Peer_socket::Ptr sock, boost::shared_ptr&lt; const Syn_ack_packet &gt; syn_ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, duplicate (equal to already-received SYN_ACK) low-le...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00539">peer_socket.cpp:539</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_abecf0f8111af82fa081c71fda490608a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#abecf0f8111af82fa081c71fda490608a">flow::net_flow::Node::m_signal_set</a></div><div class="ttdeci">Signal_set m_signal_set</div><div class="ttdoc">Signal set which we may or may not be using to trap SIGINT and SIGTERM in order to auto-fire interrup...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03890">node.hpp:3890</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_abf80b7de1398e93d1d4289ef5bf2ae2c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#abf80b7de1398e93d1d4289ef5bf2ae2c">flow::net_flow::Node::handle_data_to_syn_rcvd</a></div><div class="ttdeci">void handle_data_to_syn_rcvd(Peer_socket::Ptr sock, boost::shared_ptr&lt; Data_packet &gt; packet)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, low-level DATA packet delivered to the given peer so...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00701">server_socket.cpp:701</a></div></div>
@@ -1298,14 +1298,14 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad03aa88df3d1d3981454ee3356e868c1"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad03aa88df3d1d3981454ee3356e868c1">flow::net_flow::Node::async_sock_low_lvl_rst_send</a></div><div class="ttdeci">void async_sock_low_lvl_rst_send(Peer_socket::Ptr sock)</div><div class="ttdoc">Sends an RST to the other side of the given socket asynchronously when possible.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l01033">low_lvl_io.cpp:1033</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade08f0457943f803c23b55649139c0d3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade08f0457943f803c23b55649139c0d3">flow::net_flow::Node::m_opts</a></div><div class="ttdeci">Node_options m_opts</div><div class="ttdoc">This Node's global set of options.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03704">node.hpp:3704</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade12d2ebbd88b62432089a3a071b9514"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade12d2ebbd88b62432089a3a071b9514">flow::net_flow::Node::async_low_lvl_recv</a></div><div class="ttdeci">void async_low_lvl_recv()</div><div class="ttdoc">Registers so that during the current or next m_task_engine.run(), the latter will wait for a receivab...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00031">low_lvl_io.cpp:31</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade49e7bc7202a0adf33fec2d93d1b177"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">flow::net_flow::Node::close_connection_immediately</a></div><div class="ttdeci">void close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">A thread W method that handles the transition of the given socket from OPEN (any sub-state) to CLOSED...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05683">peer_socket.cpp:5683</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade49e7bc7202a0adf33fec2d93d1b177"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">flow::net_flow::Node::close_connection_immediately</a></div><div class="ttdeci">void close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">A thread W method that handles the transition of the given socket from OPEN (any sub-state) to CLOSED...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05689">peer_socket.cpp:5689</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_adf6d71af81def2d030f0fef159c1b06d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#adf6d71af81def2d030f0fef159c1b06d">flow::net_flow::Node::close_empty_server_immediately</a></div><div class="ttdeci">void close_empty_server_immediately(const flow_port_t local_port, Server_socket::Ptr serv, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">Handles the transition of the given server socket from S_LISTENING/S_CLOSING to S_CLOSED (including e...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00364">server_socket.cpp:364</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae43345472c4f41933a9c16d114cc937b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae43345472c4f41933a9c16d114cc937b">flow::net_flow::Node::m_event_sets</a></div><div class="ttdeci">Event_sets m_event_sets</div><div class="ttdoc">Every Event_set to have been returned by event_set_create() and not subsequently reached Event_set::S...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03804">node.hpp:3804</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae996cab95eb139d00f0d430093e64a5f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae996cab95eb139d00f0d430093e64a5f">flow::net_flow::Node::interrupt_all_waits_internal_sig_handler</a></div><div class="ttdeci">void interrupt_all_waits_internal_sig_handler(const Error_code &amp;sys_err_code, int sig_number)</div><div class="ttdoc">signal_set handler, executed on SIGINT and SIGTERM, if user has enabled this feature: causes interrup...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01456">event_set.cpp:1456</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aee8466d9c810da5edea443d665b24dcb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aee8466d9c810da5edea443d665b24dcb">flow::net_flow::Node::perform_regular_infrequent_tasks</a></div><div class="ttdeci">void perform_regular_infrequent_tasks(bool reschedule)</div><div class="ttdoc">Performs low-priority tasks that should be run on an infrequent, regular basis, such as stat logging ...</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l01117">node.cpp:1117</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aee89be07daf7d024921381a4bafe1289"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aee89be07daf7d024921381a4bafe1289">flow::net_flow::Node::m_low_lvl_endpoint</a></div><div class="ttdeci">util::Udp_endpoint m_low_lvl_endpoint</div><div class="ttdoc">After we bind m_low_lvl_sock to a UDP endpoint, this is a copy of that endpoint.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03764">node.hpp:3764</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_af5597a417d03e2bed87cd772ef5cef29"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">flow::net_flow::Node::m_task_engine</a></div><div class="ttdeci">util::Task_engine m_task_engine</div><div class="ttdoc">The main loop engine, functioning in the single-threaded-but-asynchronous callback-based &quot;reactor&quot; st...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03739">node.hpp:3739</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">flow::net_flow::Peer_socket::Int_state</a></div><div class="ttdeci">Int_state</div><div class="ttdoc">The state of the socket (and the connection from this end's point of view) for the internal state mac...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00913">peer_socket.hpp:914</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">flow::net_flow::Peer_socket::Int_state</a></div><div class="ttdeci">Int_state</div><div class="ttdoc">The state of the socket (and the connection from this end's point of view) for the internal state mac...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00914">peer_socket.hpp:915</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::Int_state::S_ESTABLISHED</a></div><div class="ttdeci">@ S_ESTABLISHED</div><div class="ttdoc">Public state is OPEN+CONNECTED; in our opinion the connection is established.</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">flow::net_flow::Peer_socket::Int_state::S_SYN_SENT</a></div><div class="ttdeci">@ S_SYN_SENT</div><div class="ttdoc">Public state is OPEN+CONNECTING; user requested active connect; we sent SYN and are awaiting response...</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::Int_state::S_CLOSED</a></div><div class="ttdeci">@ S_CLOSED</div><div class="ttdoc">Closed (dead or new) socket.</div></div>
@@ -1336,17 +1336,17 @@
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_a079d8cd87a68d1c5f04c6bce71f0061d"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow::net_flow::flow_port_t</a></div><div class="ttdeci">uint16_t flow_port_t</div><div class="ttdoc">Logical Flow port type (analogous to a UDP/TCP port in spirit but in no way relevant to UDP/TCP).</div><div class="ttdef"><b>Definition:</b> <a href="net__flow__fwd_8hpp_source.html#l00054">net_flow_fwd.hpp:54</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_a9dd0c9d8de00fab78d8b0a3f50dad2a9"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#a9dd0c9d8de00fab78d8b0a3f50dad2a9">flow::net_flow::S_PORT_ANY</a></div><div class="ttdeci">const flow_port_t S_PORT_ANY</div><div class="ttdoc">Special Flow port value used to indicate &quot;invalid port&quot; or &quot;please pick a random available ephemeral ...</div><div class="ttdef"><b>Definition:</b> <a href="port__space_8cpp_source.html#l00033">port_space.cpp:33</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a74d4a66fb00055be4e1bd6ee98e04667"><div class="ttname"><a href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667">flow::util::schedule_task_from_now</a></div><div class="ttdeci">Scheduled_task_handle schedule_task_from_now(log::Logger *logger_ptr, const Fine_duration &amp;from_now, bool single_threaded, Task_engine *task_engine, Scheduled_task_handler &amp;&amp;task_body_moved)</div><div class="ttdoc">Schedule the given function to execute in a certain amount of time: A handy wrapper around Timer (asi...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task_8hpp_source.html#l00034">sched_task.hpp:34</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a8afd30c50bcd670d45442df49d1da484"><div class="ttname"><a href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">flow::util::ostream_op_to_string</a></div><div class="ttdeci">void ostream_op_to_string(std::string *target_str, T const &amp;... ostream_args)</div><div class="ttdoc">Writes to the specified string, as if the given arguments were each passed, via &lt;&lt; in sequence,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00342">util.hpp:342</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a8afd30c50bcd670d45442df49d1da484"><div class="ttname"><a href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">flow::util::ostream_op_to_string</a></div><div class="ttdeci">void ostream_op_to_string(std::string *target_str, T const &amp;... ostream_args)</div><div class="ttdoc">Writes to the specified string, as if the given arguments were each passed, via &lt;&lt; in sequence,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00367">util.hpp:367</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af09888b3a8feaff209b6625e493bc338"><div class="ttname"><a href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">flow::util::Blob</a></div><div class="ttdeci">Blob_with_log_context&lt;&gt; Blob</div><div class="ttdoc">A concrete Blob_with_log_context that compile-time-disables Basic_blob::share() and the sharing API d...</div><div class="ttdef"><b>Definition:</b> <a href="blob__fwd_8hpp_source.html#l00060">blob_fwd.hpp:60</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af1b28edb7bad743c1c77f6b982cc3196"><div class="ttname"><a href="namespaceflow_1_1util.html#af1b28edb7bad743c1c77f6b982cc3196">flow::util::Udp_endpoint</a></div><div class="ttdeci">boost::asio::ip::udp::endpoint Udp_endpoint</div><div class="ttdoc">Short-hand for the UDP endpoint (IP/port) type.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00208">util_fwd.hpp:208</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
 <div class="ttc" id="anode_8hpp_html"><div class="ttname"><a href="node_8hpp.html">node.hpp</a></div></div>
 <div class="ttc" id="asched__task_8hpp_html"><div class="ttname"><a href="sched__task_8hpp.html">sched_task.hpp</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_abbd41e30089125f67667b39f5756c275"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#abbd41e30089125f67667b39f5756c275">flow::net_flow::Ack_packet::Individual_ack::Ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Individual_ack &gt; Ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to mutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01200">low_lvl_packet.hpp:1200</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html">flow::net_flow::Ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01019">low_lvl_packet.hpp:1020</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html">flow::net_flow::Data_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level DATA packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00892">low_lvl_packet.hpp:893</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_abbd41e30089125f67667b39f5756c275"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#abbd41e30089125f67667b39f5756c275">flow::net_flow::Ack_packet::Individual_ack::Ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Individual_ack &gt; Ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to mutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01201">low_lvl_packet.hpp:1201</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html">flow::net_flow::Ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01020">low_lvl_packet.hpp:1021</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Data__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Data__packet.html">flow::net_flow::Data_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level DATA packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00893">low_lvl_packet.hpp:894</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a186d7dae0c4b4402aed22a25d595ed30"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a186d7dae0c4b4402aed22a25d595ed30">flow::net_flow::Low_lvl_packet::create_from_raw_data_packet</a></div><div class="ttdeci">static Ptr create_from_raw_data_packet(log::Logger *logger_ptr, util::Blob *raw_packet, bool prefer_no_move)</div><div class="ttdoc">Constructs packet on the heap with values determined by the given raw binary data as presumably recei...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8cpp_source.html#l00381">low_lvl_packet.cpp:381</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Node_1_1Socket__id_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">flow::net_flow::Node::Socket_id</a></div><div class="ttdoc">The data nugget uniquely identifying a peer-to-peer connection from a remote endpoint to a port in th...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03903">node.hpp:3904</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Node_1_1Socket__id_html_a23527fa6deadda111d7c4c194a0ce177"><div class="ttname"><a href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html#a23527fa6deadda111d7c4c194a0ce177">flow::net_flow::Node::Socket_id::m_remote_endpoint</a></div><div class="ttdeci">const Remote_endpoint m_remote_endpoint</div><div class="ttdoc">The other side of the connection.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03908">node.hpp:3908</a></div></div>
@@ -1360,15 +1360,15 @@
 <div class="ttc" id="astructflow_1_1net__flow_1_1Node__options_html_ad041b807fddff912fd6f302abeb88a2f"><div class="ttname"><a href="structflow_1_1net__flow_1_1Node__options.html#ad041b807fddff912fd6f302abeb88a2f">flow::net_flow::Node_options::m_dyn_guarantee_one_low_lvl_in_buf_per_socket</a></div><div class="ttdeci">bool m_dyn_guarantee_one_low_lvl_in_buf_per_socket</div><div class="ttdoc">This very inside-baseball setting controls the allocation/copy behavior of the UDP receive-deserializ...</div><div class="ttdef"><b>Definition:</b> <a href="options_8hpp_source.html#l00568">options.hpp:568</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Node__options_html_aea7861f3c7739f8e588293d16a2de447"><div class="ttname"><a href="structflow_1_1net__flow_1_1Node__options.html#aea7861f3c7739f8e588293d16a2de447">flow::net_flow::Node_options::m_st_capture_interrupt_signals_internally</a></div><div class="ttdeci">bool m_st_capture_interrupt_signals_internally</div><div class="ttdoc">If and only if this is true, the Node will detect SIGINT and SIGTERM (or your OS's version thereof); ...</div><div class="ttdef"><b>Definition:</b> <a href="options_8hpp_source.html#l00517">options.hpp:517</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket__options_html_aeaaf832a38a5e334789e81e214686ea7"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket__options.html#aeaaf832a38a5e334789e81e214686ea7">flow::net_flow::Peer_socket_options::m_st_max_block_size</a></div><div class="ttdeci">size_t m_st_max_block_size</div><div class="ttdoc">The size of block that we will strive to (and will, assuming at least that many bytes are available i...</div><div class="ttdef"><b>Definition:</b> <a href="options_8hpp_source.html#l00114">options.hpp:114</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html">flow::net_flow::Rst_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level RST packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01332">low_lvl_packet.hpp:1333</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html">flow::net_flow::Syn_ack_ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK_ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00791">low_lvl_packet.hpp:792</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html">flow::net_flow::Syn_ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00677">low_lvl_packet.hpp:678</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html">flow::net_flow::Syn_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00582">low_lvl_packet.hpp:583</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Rst__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Rst__packet.html">flow::net_flow::Rst_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level RST packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01329">low_lvl_packet.hpp:1330</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html">flow::net_flow::Syn_ack_ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK_ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00792">low_lvl_packet.hpp:793</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__ack__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__ack__packet.html">flow::net_flow::Syn_ack_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00678">low_lvl_packet.hpp:679</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Syn__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Syn__packet.html">flow::net_flow::Syn_packet</a></div><div class="ttdoc">Internal net_flow struct that encapsulates the Flow-protocol low-level SYN packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00583">low_lvl_packet.hpp:584</a></div></div>
 <div class="ttc" id="autil__fwd_8hpp_html_a0cc4c82ac54e53b7a8a2431b66ff30df"><div class="ttname"><a href="util__fwd_8hpp.html#a0cc4c82ac54e53b7a8a2431b66ff30df">FLOW_UTIL_WHERE_AM_I_STR</a></div><div class="ttdeci">#define FLOW_UTIL_WHERE_AM_I_STR()</div><div class="ttdoc">Same as FLOW_UTIL_WHERE_AM_I() but evaluates to an std::string.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00971">util_fwd.hpp:971</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/node_8hpp.html b/doc/flow_doc/generated/html_full/node_8hpp.html
index 3003e601f..93409f25f 100644
--- a/doc/flow_doc/generated/html_full/node_8hpp.html
+++ b/doc/flow_doc/generated/html_full/node_8hpp.html
@@ -117,7 +117,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
 </body>
 </html>
diff --git a/doc/flow_doc/generated/html_full/node_8hpp_source.html b/doc/flow_doc/generated/html_full/node_8hpp_source.html
index 42a631e4b..3ac7105fb 100644
--- a/doc/flow_doc/generated/html_full/node_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/node_8hpp_source.html
@@ -4274,7 +4274,7 @@
 <div class="line"><a id="l04202" name="l04202"></a><span class="lineno"> 4202</span>}</div>
 <div class="line"><a id="l04203" name="l04203"></a><span class="lineno"> 4203</span> </div>
 <div class="line"><a id="l04204" name="l04204"></a><span class="lineno"> 4204</span>} <span class="comment">// namespace flow::net_flow</span></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Log__context_html"><div class="ttname"><a href="classflow_1_1log_1_1Log__context.html">flow::log::Log_context</a></div><div class="ttdoc">Convenience class that simply stores a Logger and/or Component passed into a constructor; and returns...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01618">log.hpp:1619</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Log__context_html_af4db395042b065b00398cd59845dcb4d"><div class="ttname"><a href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">flow::log::Log_context::get_logger</a></div><div class="ttdeci">Logger * get_logger() const</div><div class="ttdoc">Returns the stored Logger pointer, particularly as many FLOW_LOG_*() macros expect.</div><div class="ttdef"><b>Definition:</b> <a href="log_8cpp_source.html#l00225">log.cpp:225</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Logger_html"><div class="ttname"><a href="classflow_1_1log_1_1Logger.html">flow::log::Logger</a></div><div class="ttdoc">Interface that the user should implement, passing the implementing Logger into logging classes (Flow'...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01287">log.hpp:1291</a></div></div>
@@ -4282,15 +4282,15 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Event__set_html_a19cc3a286c8a11c986d2a59ec1e39a71"><div class="ttname"><a href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71">flow::net_flow::Event_set::Event_type</a></div><div class="ttdeci">Event_type</div><div class="ttdoc">Type of event or condition of interest supported by class Event_set.</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8hpp_source.html#l00306">event_set.hpp:307</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Net__env__simulator_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Net__env__simulator.html">flow::net_flow::Net_env_simulator</a></div><div class="ttdoc">Objects of this class can be fed to Node to make it internally simulate network conditions like loss,...</div><div class="ttdef"><b>Definition:</b> <a href="net__env__simulator_8hpp_source.html#l00067">net_env_simulator.hpp:70</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html">flow::net_flow::Node</a></div><div class="ttdoc">An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00933">node.hpp:937</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a00124a034c8fdac6f300900bdfcc8cfe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a00124a034c8fdac6f300900bdfcc8cfe">flow::net_flow::Node::snd_flying_pkts_updated</a></div><div class="ttdeci">void snd_flying_pkts_updated(Peer_socket::Ptr sock, Peer_socket::Sent_pkt_ordered_by_when_const_iter pkt_begin, const Peer_socket::Sent_pkt_ordered_by_when_const_iter &amp;pkt_end, bool added)</div><div class="ttdoc">Updates Peer_socket::m_snd_flying_bytes according to an operation (add packets, remove packets) calle...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03884">peer_socket.cpp:3884</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a00124a034c8fdac6f300900bdfcc8cfe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a00124a034c8fdac6f300900bdfcc8cfe">flow::net_flow::Node::snd_flying_pkts_updated</a></div><div class="ttdeci">void snd_flying_pkts_updated(Peer_socket::Ptr sock, Peer_socket::Sent_pkt_ordered_by_when_const_iter pkt_begin, const Peer_socket::Sent_pkt_ordered_by_when_const_iter &amp;pkt_end, bool added)</div><div class="ttdoc">Updates Peer_socket::m_snd_flying_bytes according to an operation (add packets, remove packets) calle...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03890">peer_socket.cpp:3890</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0055a25892990585561e69ceb02214d5"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0055a25892990585561e69ceb02214d5">flow::net_flow::Node::low_lvl_packet_sent</a></div><div class="ttdeci">void low_lvl_packet_sent(Peer_socket::Ptr sock, Low_lvl_packet::Const_ptr packet, size_t bytes_expected_transferred, const Error_code &amp;sys_err_code, size_t bytes_transferred)</div><div class="ttdoc">Completion handler for async_low_lvl_packet_send_impl(); called when the packet is either successfull...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00497">low_lvl_io.cpp:497</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0379c897bdb3e4eddeb759547be78261"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0379c897bdb3e4eddeb759547be78261">flow::net_flow::Node::serv_peer_socket_init</a></div><div class="ttdeci">void serv_peer_socket_init(Server_socket::Ptr serv, Peer_socket::Ptr sock)</div><div class="ttdoc">Records a new (just received SYN) peer socket from the given server socket.</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00850">server_socket.cpp:850</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a055ee380cf87f83c06d7380821c4679e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a055ee380cf87f83c06d7380821c4679e">flow::net_flow::Node::categorize_individual_ack</a></div><div class="ttdeci">bool categorize_individual_ack(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, Ack_packet::Individual_ack::Const_ptr ack, bool *dupe_or_late, Peer_socket::Sent_pkt_ordered_by_when_iter *acked_pkt_it)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that categorizes the given accumulated individual ackno...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02545">peer_socket.cpp:2545</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a055ee380cf87f83c06d7380821c4679e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a055ee380cf87f83c06d7380821c4679e">flow::net_flow::Node::categorize_individual_ack</a></div><div class="ttdeci">bool categorize_individual_ack(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, Ack_packet::Individual_ack::Const_ptr ack, bool *dupe_or_late, Peer_socket::Sent_pkt_ordered_by_when_iter *acked_pkt_it)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that categorizes the given accumulated individual ackno...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02551">peer_socket.cpp:2551</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a06e4cea2eefa1b06975864f09740c96b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a06e4cea2eefa1b06975864f09740c96b">flow::net_flow::Node::handle_data_to_established</a></div><div class="ttdeci">void handle_data_to_established(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, boost::shared_ptr&lt; Data_packet &gt; packet, bool syn_rcvd_qd_packet)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, low-level DATA packet delivered to the given peer so...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00560">peer_socket.cpp:560</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0756fc7301d0cfa66f19e681a9c60c06"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0756fc7301d0cfa66f19e681a9c60c06">flow::net_flow::Node::sock_is_writable</a></div><div class="ttdeci">bool sock_is_writable(const boost::any &amp;sock_as_any) const</div><div class="ttdoc">Returns true if and only if calling sock-&gt;send() with at least some arguments would return either non...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04713">peer_socket.cpp:4713</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a07ad769737db60dd637365010b80f4f3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a07ad769737db60dd637365010b80f4f3">flow::net_flow::Node::sock_info</a></div><div class="ttdeci">Peer_socket_info sock_info(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Implementation of sock-&gt;info() for socket sock in all cases except when sock-&gt;state() == Peer_socket:...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06338">peer_socket.cpp:6338</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0756fc7301d0cfa66f19e681a9c60c06"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0756fc7301d0cfa66f19e681a9c60c06">flow::net_flow::Node::sock_is_writable</a></div><div class="ttdeci">bool sock_is_writable(const boost::any &amp;sock_as_any) const</div><div class="ttdoc">Returns true if and only if calling sock-&gt;send() with at least some arguments would return either non...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04719">peer_socket.cpp:4719</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a07ad769737db60dd637365010b80f4f3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a07ad769737db60dd637365010b80f4f3">flow::net_flow::Node::sock_info</a></div><div class="ttdeci">Peer_socket_info sock_info(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Implementation of sock-&gt;info() for socket sock in all cases except when sock-&gt;state() == Peer_socket:...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06344">peer_socket.cpp:6344</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a08a5752bf3848f31abbe753be47c1fcf"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a08a5752bf3848f31abbe753be47c1fcf">flow::net_flow::Node::async_no_sock_low_lvl_packet_send</a></div><div class="ttdeci">void async_no_sock_low_lvl_packet_send(const util::Udp_endpoint &amp;low_lvl_remote_endpoint, Low_lvl_packet::Const_ptr packet)</div><div class="ttdoc">async_low_lvl_packet_send_impl() wrapper to call when packet is to be sent to the remote side of the ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00313">low_lvl_io.cpp:313</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a08cf95363b26c0c676979437e34db357"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a08cf95363b26c0c676979437e34db357">flow::net_flow::Node::receive_wnd_updated</a></div><div class="ttdeci">void receive_wnd_updated(Peer_socket::Ptr sock)</div><div class="ttdoc">Placed by receive() onto W if it has dequeued data from Receive buffer and given it to the user,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05263">peer_socket.cpp:5263</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a08cf95363b26c0c676979437e34db357"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a08cf95363b26c0c676979437e34db357">flow::net_flow::Node::receive_wnd_updated</a></div><div class="ttdeci">void receive_wnd_updated(Peer_socket::Ptr sock)</div><div class="ttdoc">Placed by receive() onto W if it has dequeued data from Receive buffer and given it to the user,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05269">peer_socket.cpp:5269</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0a91542fce634cf6a749c71f225b105a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0a91542fce634cf6a749c71f225b105a">flow::net_flow::Node::serv_create</a></div><div class="ttdeci">virtual Server_socket * serv_create(const Peer_socket_options *child_sock_opts)</div><div class="ttdoc">Internal factory used for ALL Server_socket objects created by this Node (including subclasses).</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00873">server_socket.cpp:873</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0bac29a091e1026e5b4f0b5d84a710c7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0bac29a091e1026e5b4f0b5d84a710c7">flow::net_flow::Node::serv_set_state</a></div><div class="ttdeci">void serv_set_state(Server_socket::Ptr serv, Server_socket::State state)</div><div class="ttdoc">Sets Server_socket::m_state.</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00414">server_socket.cpp:414</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0db2bb587e0407077b11368df075f0ff"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0db2bb587e0407077b11368df075f0ff">flow::net_flow::Node::async_sock_low_lvl_packet_send</a></div><div class="ttdeci">void async_sock_low_lvl_packet_send(Peer_socket::Ptr sock, Low_lvl_packet::Const_ptr &amp;&amp;packet, bool delayed_by_pacing)</div><div class="ttdoc">async_low_lvl_packet_send_impl() wrapper to call when packet is to be sent to the remote side of the ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00307">low_lvl_io.cpp:307</a></div></div>
@@ -4298,21 +4298,21 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0f9f88761fc18c4f9e0d5f4dd6b4bc95"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0f9f88761fc18c4f9e0d5f4dd6b4bc95">flow::net_flow::Node::sock_data_to_reassembly_q_unless_overflow</a></div><div class="ttdeci">bool sock_data_to_reassembly_q_unless_overflow(Peer_socket::Ptr sock, boost::shared_ptr&lt; Data_packet &gt; packet)</div><div class="ttdoc">Helper for handle_data_to_established() that aims to register the given DATA packet as an out-of-orde...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01320">peer_socket.cpp:1320</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0fba26db0055a969f3869014bc5c2bfc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0fba26db0055a969f3869014bc5c2bfc">flow::net_flow::Node::perform_accumulated_on_recv_tasks</a></div><div class="ttdeci">void perform_accumulated_on_recv_tasks()</div><div class="ttdoc">Performs all tasks to be performed at the end of low_lvl_recv_and_handle() or async part of async_wai...</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00375">node.cpp:375</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a109a118ca312e94686595ea08dac7ad0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a109a118ca312e94686595ea08dac7ad0">flow::net_flow::Node::ensure_sock_open</a></div><div class="ttdeci">static bool ensure_sock_open(Socket_ptr sock, Error_code *err_code)</div><div class="ttdoc">Helper method that checks whether the given Peer_socket or Server_socket is CLOSED; if so,...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l04141">node.hpp:4141</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a10a92f11a2c9f218cdd9a55f282e79b1"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a10a92f11a2c9f218cdd9a55f282e79b1">flow::net_flow::Node::send_worker</a></div><div class="ttdeci">void send_worker(Peer_socket::Ptr sock, bool defer_delta_check)</div><div class="ttdoc">Thread W implemention of send(): synchronously or asynchronously send the contents of sock-&gt;m_snd_buf...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04792">peer_socket.cpp:4792</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a10a92f11a2c9f218cdd9a55f282e79b1"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a10a92f11a2c9f218cdd9a55f282e79b1">flow::net_flow::Node::send_worker</a></div><div class="ttdeci">void send_worker(Peer_socket::Ptr sock, bool defer_delta_check)</div><div class="ttdoc">Thread W implemention of send(): synchronously or asynchronously send the contents of sock-&gt;m_snd_buf...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04798">peer_socket.cpp:4798</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1124027c715d674f113f2d961e4c6861"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1124027c715d674f113f2d961e4c6861">flow::net_flow::Node::interrupt_all_waits</a></div><div class="ttdeci">void interrupt_all_waits(Error_code *err_code=0)</div><div class="ttdoc">Interrupts any blocking operation, a/k/a wait, and informs the invoker of that operation that the blo...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01392">event_set.cpp:1392</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a136d9ccd25634cee2955ea79ae829006"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a136d9ccd25634cee2955ea79ae829006">flow::net_flow::Node::handle_accumulated_acks</a></div><div class="ttdeci">void handle_accumulated_acks(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that handles any incoming acknowledgments and rcv_wnd u...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02061">peer_socket.cpp:2061</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a136d9ccd25634cee2955ea79ae829006"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a136d9ccd25634cee2955ea79ae829006">flow::net_flow::Node::handle_accumulated_acks</a></div><div class="ttdeci">void handle_accumulated_acks(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that handles any incoming acknowledgments and rcv_wnd u...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02067">peer_socket.cpp:2067</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a159b9c2b9a8a969f5e3715341c433aec"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a159b9c2b9a8a969f5e3715341c433aec">flow::net_flow::Node::options</a></div><div class="ttdeci">Node_options options() const</div><div class="ttdoc">Copies this Node's option set and returns that copy.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l01107">node.cpp:1107</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1699dfdaf3e5ebe1b1d715a9c306d116"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1699dfdaf3e5ebe1b1d715a9c306d116">flow::net_flow::Node::handle_incoming</a></div><div class="ttdeci">void handle_incoming(util::Blob *packet_data, const util::Udp_endpoint &amp;low_lvl_remote_endpoint)</div><div class="ttdoc">Handles a just-received, not-yet-deserialized low-level packet.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00426">node.cpp:426</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a16c53c4848ea976b075a0b56f33eb118"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a16c53c4848ea976b075a0b56f33eb118">flow::net_flow::Node::~Node</a></div><div class="ttdeci">~Node() override</div><div class="ttdoc">Destroys Node.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00139">node.cpp:139</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a192d4b95b9f8a5c3d08b1e5486eb6f78"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a192d4b95b9f8a5c3d08b1e5486eb6f78">flow::net_flow::Node::async_rcv_wnd_recovery</a></div><div class="ttdeci">void async_rcv_wnd_recovery(Peer_socket::Ptr sock, size_t rcv_wnd)</div><div class="ttdoc">receive_wnd_updated() helper that continues rcv_wnd recovery: that is, sends unsolicited ACK with a r...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05397">peer_socket.cpp:5397</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1bfde94f7d529ea8e6c26b560abfa9c7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1bfde94f7d529ea8e6c26b560abfa9c7">flow::net_flow::Node::log_accumulated_acks</a></div><div class="ttdeci">void log_accumulated_acks(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Helper of handle_accumulated_acks() that logs the about-to-be-handled accumulated individual acknowle...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03266">peer_socket.cpp:3266</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a192d4b95b9f8a5c3d08b1e5486eb6f78"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a192d4b95b9f8a5c3d08b1e5486eb6f78">flow::net_flow::Node::async_rcv_wnd_recovery</a></div><div class="ttdeci">void async_rcv_wnd_recovery(Peer_socket::Ptr sock, size_t rcv_wnd)</div><div class="ttdoc">receive_wnd_updated() helper that continues rcv_wnd recovery: that is, sends unsolicited ACK with a r...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05403">peer_socket.cpp:5403</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1bfde94f7d529ea8e6c26b560abfa9c7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1bfde94f7d529ea8e6c26b560abfa9c7">flow::net_flow::Node::log_accumulated_acks</a></div><div class="ttdeci">void log_accumulated_acks(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Helper of handle_accumulated_acks() that logs the about-to-be-handled accumulated individual acknowle...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03272">peer_socket.cpp:3272</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1c2fe94f0b1064d35ce99c58bc95dc0f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1c2fe94f0b1064d35ce99c58bc95dc0f">flow::net_flow::Node::Signal_set</a></div><div class="ttdeci">boost::asio::signal_set Signal_set</div><div class="ttdoc">Short-hand for a signal set.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01433">node.hpp:1433</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1d5f13062bec6730db533cc1e89bf515"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1d5f13062bec6730db533cc1e89bf515">flow::net_flow::Node::sock_free_memory</a></div><div class="ttdeci">void sock_free_memory(Peer_socket::Ptr sock)</div><div class="ttdoc">Helper that clears all non-O(1)-space data structures stored inside sock.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06168">peer_socket.cpp:6168</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1d5f13062bec6730db533cc1e89bf515"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1d5f13062bec6730db533cc1e89bf515">flow::net_flow::Node::sock_free_memory</a></div><div class="ttdeci">void sock_free_memory(Peer_socket::Ptr sock)</div><div class="ttdoc">Helper that clears all non-O(1)-space data structures stored inside sock.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06174">peer_socket.cpp:6174</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1ecd7c03349fcb26b9692d300a759463"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1ecd7c03349fcb26b9692d300a759463">flow::net_flow::Node::S_NUM_PORTS</a></div><div class="ttdeci">static const size_t &amp; S_NUM_PORTS</div><div class="ttdoc">Total number of Flow ports in the port space, including S_PORT_ANY.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00942">node.hpp:942</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2195fb7d86acfaf340b3e7e59e7e10e8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2195fb7d86acfaf340b3e7e59e7e10e8">flow::net_flow::Node::event_set_check_baseline</a></div><div class="ttdeci">bool event_set_check_baseline(Event_set::Ptr event_set)</div><div class="ttdoc">Checks each desired (Event_set::m_want) event in event_set; any that holds true is saved into event_s...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01017">event_set.cpp:1017</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2336fae98b318ab73e7268e9a242bf09"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">flow::net_flow::Node::sock_load_info_struct</a></div><div class="ttdeci">void sock_load_info_struct(Peer_socket::Const_ptr sock, Peer_socket_info *stats) const</div><div class="ttdoc">Given a Peer_socket, copies all stats info (as available via Peer_socket::info()) from various struct...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06382">peer_socket.cpp:6382</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a24785d3e04e0a9cd5daca43bc867e5aa"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a24785d3e04e0a9cd5daca43bc867e5aa">flow::net_flow::Node::log_snd_window</a></div><div class="ttdeci">void log_snd_window(Peer_socket::Const_ptr sock, bool force_verbose_info_logging=false) const</div><div class="ttdoc">Logs TRACE or DATA messages thats show the detailed state of the sending sequence number space.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03635">peer_socket.cpp:3635</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2565b7c0bd82cad86eb168b62f8ffd9d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2565b7c0bd82cad86eb168b62f8ffd9d">flow::net_flow::Node::send_worker_check_state</a></div><div class="ttdeci">void send_worker_check_state(Peer_socket::Ptr sock)</div><div class="ttdoc">Helper placed by send() onto W to invoke send_worker() but ensures that the socket has not entered so...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04747">peer_socket.cpp:4747</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2336fae98b318ab73e7268e9a242bf09"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">flow::net_flow::Node::sock_load_info_struct</a></div><div class="ttdeci">void sock_load_info_struct(Peer_socket::Const_ptr sock, Peer_socket_info *stats) const</div><div class="ttdoc">Given a Peer_socket, copies all stats info (as available via Peer_socket::info()) from various struct...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06388">peer_socket.cpp:6388</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a24785d3e04e0a9cd5daca43bc867e5aa"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a24785d3e04e0a9cd5daca43bc867e5aa">flow::net_flow::Node::log_snd_window</a></div><div class="ttdeci">void log_snd_window(Peer_socket::Const_ptr sock, bool force_verbose_info_logging=false) const</div><div class="ttdoc">Logs TRACE or DATA messages thats show the detailed state of the sending sequence number space.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03641">peer_socket.cpp:3641</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2565b7c0bd82cad86eb168b62f8ffd9d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2565b7c0bd82cad86eb168b62f8ffd9d">flow::net_flow::Node::send_worker_check_state</a></div><div class="ttdeci">void send_worker_check_state(Peer_socket::Ptr sock)</div><div class="ttdoc">Helper placed by send() onto W to invoke send_worker() but ensures that the socket has not entered so...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04753">peer_socket.cpp:4753</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a266ec5d00a44bc48caf37444eb2b43a1"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a266ec5d00a44bc48caf37444eb2b43a1">flow::net_flow::Node::m_low_lvl_max_buf_size</a></div><div class="ttdeci">size_t m_low_lvl_max_buf_size</div><div class="ttdoc">OS-reported m_low_lvl_sock UDP receive buffer maximum size, obtained right after we OS-set that setti...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03771">node.hpp:3771</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2779cc2429651696df1bca8de73534f3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2779cc2429651696df1bca8de73534f3">flow::net_flow::Node::set_options</a></div><div class="ttdeci">bool set_options(const Node_options &amp;opts, Error_code *err_code=0)</div><div class="ttdoc">Dynamically replaces the current options set (options()) with the given options set.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l01054">node.cpp:1054</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a287eae1113865dba06c103cf023404ae"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a287eae1113865dba06c103cf023404ae">flow::net_flow::Node::sync_sock_low_lvl_rst_send</a></div><div class="ttdeci">void sync_sock_low_lvl_rst_send(Peer_socket::Ptr sock)</div><div class="ttdoc">Sends an RST to the other side of the given socket, synchronously.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l01045">low_lvl_io.cpp:1045</a></div></div>
@@ -4323,63 +4323,63 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2f97b363281b79ef4f399789442c84de"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2f97b363281b79ef4f399789442c84de">flow::net_flow::Node::S_REGULAR_INFREQUENT_TASKS_PERIOD</a></div><div class="ttdeci">static const Fine_duration S_REGULAR_INFREQUENT_TASKS_PERIOD</div><div class="ttdoc">Time interval between performing &quot;infrequent periodic tasks,&quot; such as stat logging.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03693">node.hpp:3693</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a31d9838b735786bfed40fc1c437808d7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a31d9838b735786bfed40fc1c437808d7">flow::net_flow::Node::sock_max_packets_after_unrecvd_packet</a></div><div class="ttdeci">size_t sock_max_packets_after_unrecvd_packet(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Computes and returns the max size for Peer_socket::m_rcv_packets_with_gaps for sock.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01556">peer_socket.cpp:1556</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a31edf238c1b21a409ea807c66c1b22f0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a31edf238c1b21a409ea807c66c1b22f0">flow::net_flow::Node::async_sock_low_lvl_packet_send_paced</a></div><div class="ttdeci">bool async_sock_low_lvl_packet_send_paced(const Peer_socket::Ptr &amp;sock, Low_lvl_packet::Ptr &amp;&amp;packet, Error_code *err_code)</div><div class="ttdoc">Begins the process of asynchronously sending the given low-level packet to the remote Node specified ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00605">low_lvl_io.cpp:605</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3326b5bdc85b43232f55e2b2ec1dbe60"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3326b5bdc85b43232f55e2b2ec1dbe60">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks</a></div><div class="ttdeci">Peer_socket::Sent_pkt_ordered_by_when_iter categorize_pkts_as_dropped_on_acks(Peer_socket::Ptr sock, const boost::unordered_set&lt; Peer_socket::order_num_t &gt; &amp;flying_now_acked_pkts)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that determines the range of In-flight packets that sho...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02936">peer_socket.cpp:2936</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3326b5bdc85b43232f55e2b2ec1dbe60"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3326b5bdc85b43232f55e2b2ec1dbe60">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks</a></div><div class="ttdeci">Peer_socket::Sent_pkt_ordered_by_when_iter categorize_pkts_as_dropped_on_acks(Peer_socket::Ptr sock, const boost::unordered_set&lt; Peer_socket::order_num_t &gt; &amp;flying_now_acked_pkts)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that determines the range of In-flight packets that sho...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02942">peer_socket.cpp:2942</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3574d50742fa0b1230c049f4b29fd3dc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3574d50742fa0b1230c049f4b29fd3dc">flow::net_flow::Node::rcv_get_first_gap_info</a></div><div class="ttdeci">void rcv_get_first_gap_info(Peer_socket::Const_ptr sock, bool *first_gap_exists, Sequence_number *seq_num_after_first_gap)</div><div class="ttdoc">Helper for handle_data_to_established() that gets simple info about Peer_socket::m_rcv_packets_with_g...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01569">peer_socket.cpp:1569</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a382b607fa2e482886f2fd75edc36b8b7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">flow::net_flow::Node::snd_deqable</a></div><div class="ttdeci">bool snd_deqable(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Return true if and only if there are enough data either in Peer_socket::m_snd_rexmit_q of sock (if re...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06074">peer_socket.cpp:6074</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a382b607fa2e482886f2fd75edc36b8b7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">flow::net_flow::Node::snd_deqable</a></div><div class="ttdeci">bool snd_deqable(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Return true if and only if there are enough data either in Peer_socket::m_snd_rexmit_q of sock (if re...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06080">peer_socket.cpp:6080</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3b5004700cb085c6a2806f39426b0ea0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3b5004700cb085c6a2806f39426b0ea0">flow::net_flow::Node::m_last_loss_sock_log_when</a></div><div class="ttdeci">Fine_time_pt m_last_loss_sock_log_when</div><div class="ttdoc">For debugging, when we detect loss of data we'd sent, we log the corresponding socket's state; this i...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03874">node.hpp:3874</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3c2cd6a6c328a2d5381308258d35d95d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3c2cd6a6c328a2d5381308258d35d95d">flow::net_flow::Node::listen</a></div><div class="ttdeci">Server_socket::Ptr listen(flow_port_t local_port, Error_code *err_code=0, const Peer_socket_options *child_sock_opts=0)</div><div class="ttdoc">Sets up a server on the given local Flow port and returns Server_socket which can be used to accept s...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00144">server_socket.cpp:144</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3f9cf4d7160b3e27b3b0131fc4507ce7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3f9cf4d7160b3e27b3b0131fc4507ce7">flow::net_flow::Node::cancel_timers</a></div><div class="ttdeci">void cancel_timers(Peer_socket::Ptr sock)</div><div class="ttdoc">Cancel any timers and scheduled tasks active in the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04447">peer_socket.cpp:4447</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3f9cf4d7160b3e27b3b0131fc4507ce7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3f9cf4d7160b3e27b3b0131fc4507ce7">flow::net_flow::Node::cancel_timers</a></div><div class="ttdeci">void cancel_timers(Peer_socket::Ptr sock)</div><div class="ttdoc">Cancel any timers and scheduled tasks active in the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04453">peer_socket.cpp:4453</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3fd57a0d025a78cbeccfd8a15a983575"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3fd57a0d025a78cbeccfd8a15a983575">flow::net_flow::Node::sock_pacing_time_slice_end</a></div><div class="ttdeci">void sock_pacing_time_slice_end(Peer_socket::Ptr sock, const Error_code &amp;sys_err_code)</div><div class="ttdoc">async_sock_low_lvl_packet_send_paced() pacing helper: If sock_pacing_process_q() ran out of the last ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00969">low_lvl_io.cpp:969</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a40595ee69bfb87fd64005bc8443329dc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a40595ee69bfb87fd64005bc8443329dc">flow::net_flow::Node::sock_rcv_buf_now_readable</a></div><div class="ttdeci">void sock_rcv_buf_now_readable(Peer_socket::Ptr sock, bool syn_rcvd_qd_packet)</div><div class="ttdoc">Helper for handle_data_to_established() that assumes the given's socket Receive buffer is currently r...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01210">peer_socket.cpp:1210</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a43472c3277cdf5e3f28d4f4f51e3bcc0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a43472c3277cdf5e3f28d4f4f51e3bcc0">flow::net_flow::Node::m_net_env_sim</a></div><div class="ttdeci">boost::shared_ptr&lt; Net_env_simulator &gt; m_net_env_sim</div><div class="ttdoc">The object used to simulate stuff like packet loss and latency via local means directly in the code.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03713">node.hpp:3713</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a4368247d07e930bdd07ab8d2425c6de8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a4368247d07e930bdd07ab8d2425c6de8">flow::net_flow::Node::async_wait_latency_then_handle_incoming</a></div><div class="ttdeci">void async_wait_latency_then_handle_incoming(const Fine_duration &amp;latency, util::Blob *packet_data, const util::Udp_endpoint &amp;low_lvl_remote_endpoint)</div><div class="ttdoc">Sets up handle_incoming(packet_data, low_lvl_remote_endpoint) to be called asynchronously after a spe...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00255">low_lvl_io.cpp:255</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a43af576c6156f5d69682e664d9ff3922"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a43af576c6156f5d69682e664d9ff3922">flow::net_flow::Node::snd_flying_pkts_erase_one</a></div><div class="ttdeci">void snd_flying_pkts_erase_one(Peer_socket::Ptr sock, Peer_socket::Sent_pkt_ordered_by_when_iter pkt_it)</div><div class="ttdoc">Erases (for example if considered Acknowledged or Dropped) a packet struct from the &quot;scoreboard&quot; (Pee...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03781">peer_socket.cpp:3781</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a43af576c6156f5d69682e664d9ff3922"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a43af576c6156f5d69682e664d9ff3922">flow::net_flow::Node::snd_flying_pkts_erase_one</a></div><div class="ttdeci">void snd_flying_pkts_erase_one(Peer_socket::Ptr sock, Peer_socket::Sent_pkt_ordered_by_when_iter pkt_it)</div><div class="ttdoc">Erases (for example if considered Acknowledged or Dropped) a packet struct from the &quot;scoreboard&quot; (Pee...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03787">peer_socket.cpp:3787</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a43c42121d48a55a43a48e3a84bd10595"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a43c42121d48a55a43a48e3a84bd10595">flow::net_flow::Node::opt</a></div><div class="ttdeci">Opt_type opt(const Opt_type &amp;opt_val_ref) const</div><div class="ttdoc">Obtain a copy of the value of a given option in a thread-safe manner.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l04180">node.hpp:4180</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a446ee7115c70cbcd48e3897d32fc0276"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276">flow::net_flow::Node::sock_validate_options</a></div><div class="ttdeci">bool sock_validate_options(const Peer_socket_options &amp;opts, const Peer_socket_options *prev_opts, Error_code *err_code) const</div><div class="ttdoc">Analogous to validate_options() but checks per-socket options instead of per-Node options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06239">peer_socket.cpp:6239</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a446ee7115c70cbcd48e3897d32fc0276"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276">flow::net_flow::Node::sock_validate_options</a></div><div class="ttdeci">bool sock_validate_options(const Peer_socket_options &amp;opts, const Peer_socket_options *prev_opts, Error_code *err_code) const</div><div class="ttdoc">Analogous to validate_options() but checks per-socket options instead of per-Node options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06245">peer_socket.cpp:6245</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a449ef757abee4c5d12f8fc62a5ca66b4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a449ef757abee4c5d12f8fc62a5ca66b4">flow::net_flow::Node::m_opts_mutex</a></div><div class="ttdeci">Options_mutex m_opts_mutex</div><div class="ttdoc">The mutex protecting m_opts.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03707">node.hpp:3707</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a44af106f110963a465065a7ea19185a3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a44af106f110963a465065a7ea19185a3">flow::net_flow::Node::Timer_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; util::Timer &gt; Timer_ptr</div><div class="ttdoc">boost.asio timer wrapped in a ref-counted pointer.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01430">node.hpp:1430</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a44ee0d42d38f3b98d032dee1549f8c4c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a44ee0d42d38f3b98d032dee1549f8c4c">flow::net_flow::Node::event_set_close</a></div><div class="ttdeci">void event_set_close(Event_set::Ptr event_set, Error_code *err_code)</div><div class="ttdoc">Implementation of Event_set::close() when Event_set::state() != Event_set::State::S_CLOSED for event_...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01273">event_set.cpp:1273</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a45583714bc147300158f074ecacce0fd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a45583714bc147300158f074ecacce0fd">flow::net_flow::Node::handle_accumulated_pending_acks</a></div><div class="ttdeci">void handle_accumulated_pending_acks(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that handles any additional individual outgoing acknowl...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01638">peer_socket.cpp:1638</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a45b05340098b0eb66f88a6a7e5f3d36f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a45b05340098b0eb66f88a6a7e5f3d36f">flow::net_flow::Node::receive_wnd_recovery_data_received</a></div><div class="ttdeci">void receive_wnd_recovery_data_received(Peer_socket::Ptr sock)</div><div class="ttdoc">Pertaining to the async_rcv_wnd_recovery() mechanism, this handles the event that we have received an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05485">peer_socket.cpp:5485</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a479dfcb7944cb6571af51f1feed2656d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a479dfcb7944cb6571af51f1feed2656d">flow::net_flow::Node::sock_get_new_snd_order_num</a></div><div class="ttdeci">static Peer_socket::order_num_t sock_get_new_snd_order_num(Peer_socket::Ptr sock)</div><div class="ttdoc">Returns the &quot;order number&quot; to use for Peer_socket::Sent_packet::Sent_when structure corresponding to ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06494">peer_socket.cpp:6494</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a45583714bc147300158f074ecacce0fd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a45583714bc147300158f074ecacce0fd">flow::net_flow::Node::handle_accumulated_pending_acks</a></div><div class="ttdeci">void handle_accumulated_pending_acks(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that handles any additional individual outgoing acknowl...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01644">peer_socket.cpp:1644</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a45b05340098b0eb66f88a6a7e5f3d36f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a45b05340098b0eb66f88a6a7e5f3d36f">flow::net_flow::Node::receive_wnd_recovery_data_received</a></div><div class="ttdeci">void receive_wnd_recovery_data_received(Peer_socket::Ptr sock)</div><div class="ttdoc">Pertaining to the async_rcv_wnd_recovery() mechanism, this handles the event that we have received an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05491">peer_socket.cpp:5491</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a479dfcb7944cb6571af51f1feed2656d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a479dfcb7944cb6571af51f1feed2656d">flow::net_flow::Node::sock_get_new_snd_order_num</a></div><div class="ttdeci">static Peer_socket::order_num_t sock_get_new_snd_order_num(Peer_socket::Ptr sock)</div><div class="ttdoc">Returns the &quot;order number&quot; to use for Peer_socket::Sent_packet::Sent_when structure corresponding to ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06500">peer_socket.cpp:6500</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a4903f254cff9d2605ace404174203138"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a4903f254cff9d2605ace404174203138">flow::net_flow::Node::Options_mutex</a></div><div class="ttdeci">Peer_socket::Options_mutex Options_mutex</div><div class="ttdoc">Short-hand for high-performance, non-reentrant, exclusive mutex used to lock m_opts.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01436">node.hpp:1436</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a49e2786f5d1eeb068a828902a631a39a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a49e2786f5d1eeb068a828902a631a39a">flow::net_flow::Node::sync_connect_impl</a></div><div class="ttdeci">Peer_socket::Ptr sync_connect_impl(const Remote_endpoint &amp;to, const Fine_duration &amp;max_wait, const boost::asio::const_buffer &amp;serialized_metadata, Error_code *err_code, const Peer_socket_options *opts)</div><div class="ttdoc">Implementation core of sync_connect*() that gets rid of templated or missing arguments thereof.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04206">peer_socket.cpp:4206</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a49e2786f5d1eeb068a828902a631a39a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a49e2786f5d1eeb068a828902a631a39a">flow::net_flow::Node::sync_connect_impl</a></div><div class="ttdeci">Peer_socket::Ptr sync_connect_impl(const Remote_endpoint &amp;to, const Fine_duration &amp;max_wait, const boost::asio::const_buffer &amp;serialized_metadata, Error_code *err_code, const Peer_socket_options *opts)</div><div class="ttdoc">Implementation core of sync_connect*() that gets rid of templated or missing arguments thereof.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04212">peer_socket.cpp:4212</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a4a21e69d3ae442b2cc06220514de364a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a4a21e69d3ae442b2cc06220514de364a">flow::net_flow::Node::event_set_check_baseline_assuming_state</a></div><div class="ttdeci">void event_set_check_baseline_assuming_state(Event_set::Ptr event_set)</div><div class="ttdoc">Helper placed by event_set_async_wait() onto thread W to invoke event_set_check_baseline() but first ...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l00989">event_set.cpp:989</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a4bd7b471dd6cd3e3570930b48d30e577"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a4bd7b471dd6cd3e3570930b48d30e577">flow::net_flow::Node::max_block_size</a></div><div class="ttdeci">size_t max_block_size() const</div><div class="ttdoc">The maximum number of bytes of user data per received or sent block on connections generated from thi...</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l01112">node.cpp:1112</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a4cb3dcb90f1dfc44a4343c0e89ce6b83"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a4cb3dcb90f1dfc44a4343c0e89ce6b83">flow::net_flow::Node::local_low_lvl_endpoint</a></div><div class="ttdeci">const util::Udp_endpoint &amp; local_low_lvl_endpoint() const</div><div class="ttdoc">Return the UDP endpoint (IP address and UDP port) which will be used for receiving incoming and sendi...</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00369">node.cpp:369</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a4f175a1923aeef5eee39bd726e88c93a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a4f175a1923aeef5eee39bd726e88c93a">flow::net_flow::Node::Udp_socket</a></div><div class="ttdeci">boost::asio::ip::udp::socket Udp_socket</div><div class="ttdoc">Short-hand for UDP socket.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01427">node.hpp:1427</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a51b26bff4cdf545f22d8edec7185c5c4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a51b26bff4cdf545f22d8edec7185c5c4">flow::net_flow::Node::serv_is_acceptable</a></div><div class="ttdeci">bool serv_is_acceptable(const boost::any &amp;serv_as_any) const</div><div class="ttdoc">Returns true if and only if calling serv-&gt;accept() with at least some arguments would return either n...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00342">server_socket.cpp:342</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a52a3e10ef08b93daf87ea5f0f1e87062"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a52a3e10ef08b93daf87ea5f0f1e87062">flow::net_flow::Node::snd_flying_pkts_push_one</a></div><div class="ttdeci">void snd_flying_pkts_push_one(Peer_socket::Ptr sock, const Sequence_number &amp;seq_num, Peer_socket::Sent_packet::Ptr sent_pkt)</div><div class="ttdoc">Adds a new packet struct (presumably representing packet to be sent shortly) to the &quot;scoreboard&quot; (Pee...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03818">peer_socket.cpp:3818</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a52a3e10ef08b93daf87ea5f0f1e87062"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a52a3e10ef08b93daf87ea5f0f1e87062">flow::net_flow::Node::snd_flying_pkts_push_one</a></div><div class="ttdeci">void snd_flying_pkts_push_one(Peer_socket::Ptr sock, const Sequence_number &amp;seq_num, Peer_socket::Sent_packet::Ptr sent_pkt)</div><div class="ttdoc">Adds a new packet struct (presumably representing packet to be sent shortly) to the &quot;scoreboard&quot; (Pee...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03824">peer_socket.cpp:3824</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a5b056ed753b832458f44f537acfe86d7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a5b056ed753b832458f44f537acfe86d7">flow::net_flow::Node::worker_run</a></div><div class="ttdeci">void worker_run(const util::Udp_endpoint low_lvl_endpoint)</div><div class="ttdoc">Worker thread W (main event loop) body.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00151">node.cpp:151</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a5bca5c11ac5a4763fed6ce146fe733e7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a5bca5c11ac5a4763fed6ce146fe733e7">flow::net_flow::Node::create_syn</a></div><div class="ttdeci">Syn_packet::Ptr create_syn(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Helper that creates a new SYN packet object to the extent that is suitable for immediately passing to...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05811">peer_socket.cpp:5811</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a5bca5c11ac5a4763fed6ce146fe733e7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a5bca5c11ac5a4763fed6ce146fe733e7">flow::net_flow::Node::create_syn</a></div><div class="ttdeci">Syn_packet::Ptr create_syn(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Helper that creates a new SYN packet object to the extent that is suitable for immediately passing to...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05817">peer_socket.cpp:5817</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a61f87144f19e908ffb981f3bff91938e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a61f87144f19e908ffb981f3bff91938e">flow::net_flow::Node::m_event_loop_ready_result</a></div><div class="ttdeci">boost::unique_future&lt; Error_code &gt; m_event_loop_ready_result</div><div class="ttdoc">The future object through which the non-W thread waits for m_event_loop_ready to be set to success/fa...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03883">node.hpp:3883</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a62e1f8e6da36d7cd3ad905924aea376c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a62e1f8e6da36d7cd3ad905924aea376c">flow::net_flow::Node::sock_pacing_new_packet_ready</a></div><div class="ttdeci">bool sock_pacing_new_packet_ready(Peer_socket::Ptr sock, Low_lvl_packet::Ptr packet, Error_code *err_code)</div><div class="ttdoc">async_sock_low_lvl_packet_send_paced() pacing helper: Handles a DATA or ACK packet that was just pass...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00649">low_lvl_io.cpp:649</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6461124e5bc3e59083e172e26029e632"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6461124e5bc3e59083e172e26029e632">flow::net_flow::Node::close_abruptly</a></div><div class="ttdeci">void close_abruptly(Peer_socket::Ptr sock, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking sock-&gt;close_abruptly() for socket sock in all cases except when sock-&gt;...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05615">peer_socket.cpp:5615</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a663f1fd8b524ffe63dfa6b7ca76b1a43"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a663f1fd8b524ffe63dfa6b7ca76b1a43">flow::net_flow::Node::get_seq_num_range</a></div><div class="ttdeci">static void get_seq_num_range(const Packet_map_iter &amp;packet_it, Sequence_number *seq_num_start, Sequence_number *seq_num_end)</div><div class="ttdoc">Given an iterator into a Peer_socket::Sent_pkt_by_sent_when_map or Peer_socket::Recv_pkt_map,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06479">peer_socket.cpp:6479</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6461124e5bc3e59083e172e26029e632"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6461124e5bc3e59083e172e26029e632">flow::net_flow::Node::close_abruptly</a></div><div class="ttdeci">void close_abruptly(Peer_socket::Ptr sock, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking sock-&gt;close_abruptly() for socket sock in all cases except when sock-&gt;...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05621">peer_socket.cpp:5621</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a663f1fd8b524ffe63dfa6b7ca76b1a43"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a663f1fd8b524ffe63dfa6b7ca76b1a43">flow::net_flow::Node::get_seq_num_range</a></div><div class="ttdeci">static void get_seq_num_range(const Packet_map_iter &amp;packet_it, Sequence_number *seq_num_start, Sequence_number *seq_num_end)</div><div class="ttdoc">Given an iterator into a Peer_socket::Sent_pkt_by_sent_when_map or Peer_socket::Recv_pkt_map,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06485">peer_socket.cpp:6485</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6725d69ea1a6457d88abb63cef6e6bb2"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6725d69ea1a6457d88abb63cef6e6bb2">flow::net_flow::Node::sync_connect_with_metadata</a></div><div class="ttdeci">Peer_socket::Ptr sync_connect_with_metadata(const Remote_endpoint &amp;to, const boost::chrono::duration&lt; Rep, Period &gt; &amp;max_wait, const boost::asio::const_buffer &amp;serialized_metadata, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">A combination of sync_connect() and connect_with_metadata() (blocking connect, with supplied metadata...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03956">node.hpp:3956</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6727ca42e15c8627c1ed3d94e6dd7a53"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6727ca42e15c8627c1ed3d94e6dd7a53">flow::net_flow::Node::event_set_close_worker</a></div><div class="ttdeci">void event_set_close_worker(Event_set::Ptr event_set)</div><div class="ttdoc">The guts of event_set_close_worker_check_state(): same thing, but assumes Event_set::state() == Event...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01332">event_set.cpp:1332</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6bcd840049c57150cdaa5c59d22c488b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6bcd840049c57150cdaa5c59d22c488b">flow::net_flow::Node::create_syn_ack</a></div><div class="ttdeci">Syn_ack_packet::Ptr create_syn_ack(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Like create_syn() but for SYN_ACK.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05826">peer_socket.cpp:5826</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6daaa6a5a7d0b7e5a2266dd9db400c01"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6daaa6a5a7d0b7e5a2266dd9db400c01">flow::net_flow::Node::sock_create</a></div><div class="ttdeci">virtual Peer_socket * sock_create(const Peer_socket_options &amp;opts)</div><div class="ttdoc">Internal factory used for ALL Peer_socket objects created by this Node (including subclasses).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06500">peer_socket.cpp:6500</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a70d124ba678e2ab72f8c6d28140ca137"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a70d124ba678e2ab72f8c6d28140ca137">flow::net_flow::Node::snd_buf_enqable</a></div><div class="ttdeci">bool snd_buf_enqable(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Return true if and only if there is enough free space in Peer_socket::m_snd_buf of sock to enqueue an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06080">peer_socket.cpp:6080</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a7395ac534047f06629962ad19b3fa657"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657">flow::net_flow::Node::can_send</a></div><div class="ttdeci">bool can_send(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Answers the perennial question of congestion and flow control: assuming there is a DATA packet to sen...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05039">peer_socket.cpp:5039</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6bcd840049c57150cdaa5c59d22c488b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6bcd840049c57150cdaa5c59d22c488b">flow::net_flow::Node::create_syn_ack</a></div><div class="ttdeci">Syn_ack_packet::Ptr create_syn_ack(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Like create_syn() but for SYN_ACK.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05832">peer_socket.cpp:5832</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6daaa6a5a7d0b7e5a2266dd9db400c01"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6daaa6a5a7d0b7e5a2266dd9db400c01">flow::net_flow::Node::sock_create</a></div><div class="ttdeci">virtual Peer_socket * sock_create(const Peer_socket_options &amp;opts)</div><div class="ttdoc">Internal factory used for ALL Peer_socket objects created by this Node (including subclasses).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06506">peer_socket.cpp:6506</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a70d124ba678e2ab72f8c6d28140ca137"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a70d124ba678e2ab72f8c6d28140ca137">flow::net_flow::Node::snd_buf_enqable</a></div><div class="ttdeci">bool snd_buf_enqable(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Return true if and only if there is enough free space in Peer_socket::m_snd_buf of sock to enqueue an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06086">peer_socket.cpp:6086</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a7395ac534047f06629962ad19b3fa657"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657">flow::net_flow::Node::can_send</a></div><div class="ttdeci">bool can_send(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Answers the perennial question of congestion and flow control: assuming there is a DATA packet to sen...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05045">peer_socket.cpp:5045</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a74a6a82a1390a76e985593969fb47184"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a74a6a82a1390a76e985593969fb47184">flow::net_flow::Node::async_no_sock_low_lvl_rst_send</a></div><div class="ttdeci">void async_no_sock_low_lvl_rst_send(Low_lvl_packet::Const_ptr causing_packet, const util::Udp_endpoint &amp;low_lvl_remote_endpoint)</div><div class="ttdoc">Sends an RST to the given UDP endpoint in response to the given incoming low-level packet that came f...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00586">low_lvl_io.cpp:586</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a74adc7d61419f4beb7941d418a31a648"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a74adc7d61419f4beb7941d418a31a648">flow::net_flow::Node::sock_slide_rcv_next_seq_num</a></div><div class="ttdeci">void sock_slide_rcv_next_seq_num(Peer_socket::Ptr sock, size_t slide_size, bool reassembly_in_progress)</div><div class="ttdoc">Helper for handle_data_to_established() that aims to register a set of received DATA packet data as i...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01471">peer_socket.cpp:1471</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a755c329b9e0f2b8edb2e5b900bd2a337"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a755c329b9e0f2b8edb2e5b900bd2a337">flow::net_flow::Node::sock_log_detail</a></div><div class="ttdeci">void sock_log_detail(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Logs a verbose state report for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06435">peer_socket.cpp:6435</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a755c329b9e0f2b8edb2e5b900bd2a337"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a755c329b9e0f2b8edb2e5b900bd2a337">flow::net_flow::Node::sock_log_detail</a></div><div class="ttdeci">void sock_log_detail(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Logs a verbose state report for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06441">peer_socket.cpp:6441</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a7a79b2d15dd3dd1ffe1cdb0fa8e8d36c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a7a79b2d15dd3dd1ffe1cdb0fa8e8d36c">flow::net_flow::Node::Port_to_server_map</a></div><div class="ttdeci">boost::unordered_map&lt; flow_port_t, Server_socket::Ptr &gt; Port_to_server_map</div><div class="ttdoc">A map from the local Flow port to the local Server_socket listening on that port.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01453">node.hpp:1453</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a7aadcad6c19587cd0d788570194b2afd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a7aadcad6c19587cd0d788570194b2afd">flow::net_flow::Node::S_NUM_EPHEMERAL_PORTS</a></div><div class="ttdeci">static const size_t &amp; S_NUM_EPHEMERAL_PORTS</div><div class="ttdoc">Total number of Flow &quot;ephemeral&quot; ports (ones reserved locally at random with Node::listen(S_PORT_ANY)...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00951">node.hpp:951</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a7bea132db0e45ea01b9a6bd22fd0fadb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a7bea132db0e45ea01b9a6bd22fd0fadb">flow::net_flow::Node::m_socks_with_accumulated_pending_acks</a></div><div class="ttdeci">boost::unordered_set&lt; Peer_socket::Ptr &gt; m_socks_with_accumulated_pending_acks</div><div class="ttdoc">Within a given low_lvl_recv_and_handle() or async part of async_wait_latency_then_handle_incoming() (...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03849">node.hpp:3849</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a7d9f418a3c99197e58f71ce2fff2997f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a7d9f418a3c99197e58f71ce2fff2997f">flow::net_flow::Node::m_socks_with_accumulated_acks</a></div><div class="ttdeci">boost::unordered_set&lt; Peer_socket::Ptr &gt; m_socks_with_accumulated_acks</div><div class="ttdoc">Within a given low_lvl_recv_and_handle() or async part of async_wait_latency_then_handle_incoming() c...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03867">node.hpp:3867</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a7e9629b88c4cd0b337a51c2363893908"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a7e9629b88c4cd0b337a51c2363893908">flow::net_flow::Node::hash_value</a></div><div class="ttdeci">friend size_t hash_value(const Socket_id &amp;socket_id)</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l01162">node.cpp:1162</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a80d58cfa8fad00a116a38f76ccb2b868"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">flow::net_flow::Node::advance_seq_num</a></div><div class="ttdeci">static void advance_seq_num(Sequence_number *seq_num, boost::shared_ptr&lt; const Data_packet &gt; data)</div><div class="ttdoc">Assuming *seq_num points to the start of data.m_data, increments *seq_num to point to the datum just ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06456">peer_socket.cpp:6456</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a81e50276d0b162f6577adc690e0ef9e0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a81e50276d0b162f6577adc690e0ef9e0">flow::net_flow::Node::async_low_lvl_ack_send</a></div><div class="ttdeci">void async_low_lvl_ack_send(Peer_socket::Ptr sock, bool defer_delta_check, const Error_code &amp;sys_err_code=Error_code())</div><div class="ttdoc">Sends a low-level ACK packet, with all accumulated in Peer_socket::m_rcv_pending_acks of sock individ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05857">peer_socket.cpp:5857</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a837d37e6eb06fb6df4666bac327d20f8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a837d37e6eb06fb6df4666bac327d20f8">flow::net_flow::Node::snd_past_last_flying_datum_seq_num</a></div><div class="ttdeci">static Sequence_number snd_past_last_flying_datum_seq_num(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Obtain the sequence number for the datum just past the last (latest) In-flight (i....</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03760">peer_socket.cpp:3760</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a80d58cfa8fad00a116a38f76ccb2b868"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">flow::net_flow::Node::advance_seq_num</a></div><div class="ttdeci">static void advance_seq_num(Sequence_number *seq_num, boost::shared_ptr&lt; const Data_packet &gt; data)</div><div class="ttdoc">Assuming *seq_num points to the start of data.m_data, increments *seq_num to point to the datum just ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06462">peer_socket.cpp:6462</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a81e50276d0b162f6577adc690e0ef9e0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a81e50276d0b162f6577adc690e0ef9e0">flow::net_flow::Node::async_low_lvl_ack_send</a></div><div class="ttdeci">void async_low_lvl_ack_send(Peer_socket::Ptr sock, bool defer_delta_check, const Error_code &amp;sys_err_code=Error_code())</div><div class="ttdoc">Sends a low-level ACK packet, with all accumulated in Peer_socket::m_rcv_pending_acks of sock individ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05863">peer_socket.cpp:5863</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a837d37e6eb06fb6df4666bac327d20f8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a837d37e6eb06fb6df4666bac327d20f8">flow::net_flow::Node::snd_past_last_flying_datum_seq_num</a></div><div class="ttdeci">static Sequence_number snd_past_last_flying_datum_seq_num(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Obtain the sequence number for the datum just past the last (latest) In-flight (i....</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03766">peer_socket.cpp:3766</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a84b7e03ae7b13dae0f59db1475e46fd3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a84b7e03ae7b13dae0f59db1475e46fd3">flow::net_flow::Node::m_worker</a></div><div class="ttdeci">util::Thread m_worker</div><div class="ttdoc">Worker thread (= thread W). Other members should be initialized before this to avoid race condition.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03893">node.hpp:3893</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8938c4a091edf1c1c77e2cc8f505f0ff"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8938c4a091edf1c1c77e2cc8f505f0ff">flow::net_flow::Node::m_seq_num_generator</a></div><div class="ttdeci">Sequence_number::Generator m_seq_num_generator</div><div class="ttdoc">Sequence number generator (at least to generate ISNs). Only thread W can access this.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03780">node.hpp:3780</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a893c8393930110e2aa0823583e37cabd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a893c8393930110e2aa0823583e37cabd">flow::net_flow::Node::connect</a></div><div class="ttdeci">Peer_socket::Ptr connect(const Remote_endpoint &amp;to, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">Initiates an active connect to the specified remote Flow server.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03944">peer_socket.cpp:3944</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a893c8393930110e2aa0823583e37cabd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a893c8393930110e2aa0823583e37cabd">flow::net_flow::Node::connect</a></div><div class="ttdeci">Peer_socket::Ptr connect(const Remote_endpoint &amp;to, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">Initiates an active connect to the specified remote Flow server.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03950">peer_socket.cpp:3950</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8a4ddf81ddbeab1f740940c4cc0d3625"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8a4ddf81ddbeab1f740940c4cc0d3625">flow::net_flow::Node::event_set_all_check_delta</a></div><div class="ttdeci">void event_set_all_check_delta(bool defer_delta_check)</div><div class="ttdoc">For each WAITING Event_set within the Node: checks for any events that hold, and if any do hold,...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01129">event_set.cpp:1129</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8a6c02bf520a16df4028bd3c88732a8d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8a6c02bf520a16df4028bd3c88732a8d">flow::net_flow::Node::serv_peer_socket_closed</a></div><div class="ttdeci">void serv_peer_socket_closed(Server_socket::Ptr serv, Peer_socket::Ptr sock)</div><div class="ttdoc">Records that a Server_socket-contained (i.e., currently un-established, or established but not yet ac...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00786">server_socket.cpp:786</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8aa99dc4800a49b7b958b585717eb50b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8aa99dc4800a49b7b958b585717eb50b">flow::net_flow::Node::validate_static_option</a></div><div class="ttdeci">bool validate_static_option(const Opt_type &amp;new_val, const Opt_type &amp;old_val, const std::string &amp;opt_id, Error_code *err_code) const</div><div class="ttdoc">Helper that compares new_val to old_val and, if they are not equal, logs and returns an error; used t...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l04161">node.hpp:4161</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8cae2884eaf67d77c9f8cf56b31e4c4b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8cae2884eaf67d77c9f8cf56b31e4c4b">flow::net_flow::Node::rcv_buf_deqable</a></div><div class="ttdeci">bool rcv_buf_deqable(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Return true if and only if there are enough data in Peer_socket::m_rcv_buf of sock to give the user s...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06097">peer_socket.cpp:6097</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8cae2884eaf67d77c9f8cf56b31e4c4b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8cae2884eaf67d77c9f8cf56b31e4c4b">flow::net_flow::Node::rcv_buf_deqable</a></div><div class="ttdeci">bool rcv_buf_deqable(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Return true if and only if there are enough data in Peer_socket::m_rcv_buf of sock to give the user s...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06103">peer_socket.cpp:6103</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8ece1750c8f0bee297af113f8808b7a6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8ece1750c8f0bee297af113f8808b7a6">flow::net_flow::Node::async_acknowledge_packet</a></div><div class="ttdeci">void async_acknowledge_packet(Peer_socket::Ptr sock, const Sequence_number &amp;seq_num, unsigned int rexmit_id, size_t data_size)</div><div class="ttdoc">Causes an acknowledgment of the given received packet to be included in a future Ack_packet sent to t...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01581">peer_socket.cpp:1581</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a90244d69d550370158bbe843ab595a7a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a90244d69d550370158bbe843ab595a7a">flow::net_flow::Node::m_socks</a></div><div class="ttdeci">Socket_id_to_socket_map m_socks</div><div class="ttdoc">The peer-to-peer connections this Node is currently tracking.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03792">node.hpp:3792</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a90ecbad1ff3a8d2fe4b3ad1c474f7513"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a90ecbad1ff3a8d2fe4b3ad1c474f7513">flow::net_flow::Node::handle_incoming_with_simulation</a></div><div class="ttdeci">unsigned int handle_incoming_with_simulation(util::Blob *packet_data, const util::Udp_endpoint &amp;low_lvl_remote_endpoint, bool is_sim_duplicate_packet=false)</div><div class="ttdoc">Helper for low_lvl_recv_and_handle() that calls handle_incoming() on the not-yet-deserialized low-lev...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00187">low_lvl_io.cpp:187</a></div></div>
@@ -4388,23 +4388,23 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a97c8679c70ac9c7dda394fdf335aaed7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a97c8679c70ac9c7dda394fdf335aaed7">flow::net_flow::Node::Options_lock</a></div><div class="ttdeci">Peer_socket::Options_lock Options_lock</div><div class="ttdoc">Short-hand for lock that acquires exclusive access to an Options_mutex.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01439">node.hpp:1439</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a9909cd2b2a77c57da9e35fcef0f8a4e5"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a9909cd2b2a77c57da9e35fcef0f8a4e5">flow::net_flow::Node::low_lvl_recv_and_handle</a></div><div class="ttdeci">void low_lvl_recv_and_handle(Error_code sys_err_code)</div><div class="ttdoc">Handles the pre-condition that m_low_lvl_sock has a UDP packet available for reading,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00046">low_lvl_io.cpp:46</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a99561404e8389fef08fa4ac5c16a7f36"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a99561404e8389fef08fa4ac5c16a7f36">flow::net_flow::Node::operator==</a></div><div class="ttdeci">friend bool operator==(const Socket_id &amp;lhs, const Socket_id &amp;rhs)</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l01157">node.cpp:1157</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a99836ffb51eaefa4d2cc21770461cd97"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">flow::net_flow::Node::socket_id</a></div><div class="ttdeci">static Socket_id socket_id(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Constructs the socket pair (connection ID) for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06068">peer_socket.cpp:6068</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a99836ffb51eaefa4d2cc21770461cd97"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">flow::net_flow::Node::socket_id</a></div><div class="ttdeci">static Socket_id socket_id(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Constructs the socket pair (connection ID) for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06074">peer_socket.cpp:6074</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a9b9e0224c17190e99debdfd81640bf89"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a9b9e0224c17190e99debdfd81640bf89">flow::net_flow::Node::m_low_lvl_sock</a></div><div class="ttdeci">Udp_socket m_low_lvl_sock</div><div class="ttdoc">The UDP socket used to receive low-level packets (to assemble into application layer data) and send t...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03753">node.hpp:3753</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a9f302fe63e36f72931e1a759b0aaaed4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a9f302fe63e36f72931e1a759b0aaaed4">flow::net_flow::Node::async_low_lvl_packet_send_impl</a></div><div class="ttdeci">void async_low_lvl_packet_send_impl(const util::Udp_endpoint &amp;low_lvl_remote_endpoint, Low_lvl_packet::Const_ptr packet, bool delayed_by_pacing, Peer_socket::Ptr sock)</div><div class="ttdoc">Takes given low-level packet structure, serializes it, and initiates asynchronous send of these data ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00321">low_lvl_io.cpp:321</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa0f9ebea458490c37a38760c8335506c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa0f9ebea458490c37a38760c8335506c">flow::net_flow::Node::handle_syn_ack_to_syn_sent</a></div><div class="ttdeci">void handle_syn_ack_to_syn_sent(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, boost::shared_ptr&lt; const Syn_ack_packet &gt; syn_ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed low-level SYN_ACK packet delivered to the given peer ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00474">peer_socket.cpp:474</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa18a14a4749f34d07c71bb2a1214d65f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa18a14a4749f34d07c71bb2a1214d65f">flow::net_flow::Node::event_set_async_wait</a></div><div class="ttdeci">bool event_set_async_wait(Event_set::Ptr event_set, const Event_set::Event_handler &amp;on_event, Error_code *err_code)</div><div class="ttdoc">Implementation of Event_set::async_wait() when Event_set::state() == Event_set::State::S_INACTIVE.</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l00917">event_set.cpp:917</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa19d1f49638ef8ce8883e7477a06d3fc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa19d1f49638ef8ce8883e7477a06d3fc">flow::net_flow::Node::send</a></div><div class="ttdeci">size_t send(Peer_socket::Ptr sock, const Function&lt; size_t(size_t max_data_size)&gt; &amp;snd_buf_feed_func, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking sock-&gt;send() for socket sock in all cases except when sock-&gt;state() ==...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04520">peer_socket.cpp:4520</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa19d1f49638ef8ce8883e7477a06d3fc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa19d1f49638ef8ce8883e7477a06d3fc">flow::net_flow::Node::send</a></div><div class="ttdeci">size_t send(Peer_socket::Ptr sock, const Function&lt; size_t(size_t max_data_size)&gt; &amp;snd_buf_feed_func, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking sock-&gt;send() for socket sock in all cases except when sock-&gt;state() ==...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04526">peer_socket.cpp:4526</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa1b913c5c759a465a9fcaa637ddaea99"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa1b913c5c759a465a9fcaa637ddaea99">flow::net_flow::Node::S_NUM_SERVICE_PORTS</a></div><div class="ttdeci">static const size_t &amp; S_NUM_SERVICE_PORTS</div><div class="ttdoc">Total number of Flow &quot;service&quot; ports (ones that can be reserved by number with Node::listen()).</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00945">node.hpp:945</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa1d1021e099c70c1a6e192e65f86debf"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa1d1021e099c70c1a6e192e65f86debf">flow::net_flow::Node::S_FIRST_EPHEMERAL_PORT</a></div><div class="ttdeci">static const flow_port_t &amp; S_FIRST_EPHEMERAL_PORT</div><div class="ttdoc">The port number of the lowest ephemeral Flow port, making the range of ephemeral ports [S_FIRST_EPHEM...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00963">node.hpp:963</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa1d9656e9e1480021c87530ec6dbebbe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa1d9656e9e1480021c87530ec6dbebbe">flow::net_flow::Node::sock_set_int_state</a></div><div class="ttdeci">void sock_set_int_state(Peer_socket::Ptr sock, Peer_socket::Int_state new_state)</div><div class="ttdoc">Sets internal state of given socket to the given state and logs a TRACE message about it.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06103">peer_socket.cpp:6103</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa1d9656e9e1480021c87530ec6dbebbe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa1d9656e9e1480021c87530ec6dbebbe">flow::net_flow::Node::sock_set_int_state</a></div><div class="ttdeci">void sock_set_int_state(Peer_socket::Ptr sock, Peer_socket::Int_state new_state)</div><div class="ttdoc">Sets internal state of given socket to the given state and logs a TRACE message about it.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06109">peer_socket.cpp:6109</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa42efbce8c5ea908a253fca2e9b2a02c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa42efbce8c5ea908a253fca2e9b2a02c">flow::net_flow::Node::sock_create_forward_plus_ctor_args</a></div><div class="ttdeci">Peer_socket * sock_create_forward_plus_ctor_args(const Peer_socket_options &amp;opts)</div><div class="ttdoc">Returns a raw pointer to newly created Peer_socket or sub-instance like asio::Peer_socket,...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l04193">node.hpp:4193</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa440f6ff5442c58323bec7a2304b0d90"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa440f6ff5442c58323bec7a2304b0d90">flow::net_flow::Node::m_event_loop_ready</a></div><div class="ttdeci">boost::promise&lt; Error_code &gt; m_event_loop_ready</div><div class="ttdoc">Promise that thread W sets to truthy Error_code if it fails to initialize or falsy once event loop is...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03880">node.hpp:3880</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa44feae2c97b4bc1fe1f14f83e932d84"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa44feae2c97b4bc1fe1f14f83e932d84">flow::net_flow::Node::sock_is_readable</a></div><div class="ttdeci">bool sock_is_readable(const boost::any &amp;sock_as_any) const</div><div class="ttdoc">Returns true if and only if calling sock-&gt;receive() with at least some arguments would return either ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05233">peer_socket.cpp:5233</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa44feae2c97b4bc1fe1f14f83e932d84"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa44feae2c97b4bc1fe1f14f83e932d84">flow::net_flow::Node::sock_is_readable</a></div><div class="ttdeci">bool sock_is_readable(const boost::any &amp;sock_as_any) const</div><div class="ttdoc">Returns true if and only if calling sock-&gt;receive() with at least some arguments would return either ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05239">peer_socket.cpp:5239</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa5f7c019665d9dd91af0ad6431f8f97d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">flow::net_flow::Node::async_sock_low_lvl_packet_send_or_close_immediately</a></div><div class="ttdeci">bool async_sock_low_lvl_packet_send_or_close_immediately(const Peer_socket::Ptr &amp;sock, Low_lvl_packet::Ptr &amp;&amp;packet, bool defer_delta_check)</div><div class="ttdoc">Similar to async_sock_low_lvl_packet_send_paced() except it also calls close_connection_immediately(s...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l01019">low_lvl_io.cpp:1019</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa894fd58b246c2a8d6c7c7d25a8748cb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa894fd58b246c2a8d6c7c7d25a8748cb">flow::net_flow::Node::this_thread_init_logger_setup</a></div><div class="ttdeci">log::Logger * this_thread_init_logger_setup(const std::string &amp;thread_type, log::Logger *logger=0)</div><div class="ttdoc">Helper to invoke for each thread in which this Node executes, whether or not it starts that thread,...</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00113">node.cpp:113</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aaaf5c3b5e6b9f9f1658b60907b36a498"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aaaf5c3b5e6b9f9f1658b60907b36a498">flow::net_flow::Node::handle_syn_to_listening_server</a></div><div class="ttdeci">Peer_socket::Ptr handle_syn_to_listening_server(Server_socket::Ptr serv, boost::shared_ptr&lt; const Syn_packet &gt; syn, const util::Udp_endpoint &amp;low_lvl_remote_endpoint)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed low-level SYN packet delivered to the given server so...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00433">server_socket.cpp:433</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aab414ebd0e2d27f02ed51270dab90c45"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aab414ebd0e2d27f02ed51270dab90c45">flow::net_flow::Node::sock_data_to_rcv_buf_unless_overflow</a></div><div class="ttdeci">bool sock_data_to_rcv_buf_unless_overflow(Peer_socket::Ptr sock, boost::shared_ptr&lt; Data_packet &gt; packet)</div><div class="ttdoc">Helper for handle_data_to_established() that aims to pass the payload of the given DATA packet to the...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01133">peer_socket.cpp:1133</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aadea4a9941c6138d9c025401b1f85ceb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aadea4a9941c6138d9c025401b1f85ceb">flow::net_flow::Node::sock_set_options</a></div><div class="ttdeci">bool sock_set_options(Peer_socket::Ptr sock, const Peer_socket_options &amp;opts, Error_code *err_code)</div><div class="ttdoc">Thread W implementation of sock-&gt;set_options().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06191">peer_socket.cpp:6191</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aadea4a9941c6138d9c025401b1f85ceb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aadea4a9941c6138d9c025401b1f85ceb">flow::net_flow::Node::sock_set_options</a></div><div class="ttdeci">bool sock_set_options(Peer_socket::Ptr sock, const Peer_socket_options &amp;opts, Error_code *err_code)</div><div class="ttdoc">Thread W implementation of sock-&gt;set_options().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06197">peer_socket.cpp:6197</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aae148cec361b59237996a4b30c6624b5"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">flow::net_flow::Node::running</a></div><div class="ttdeci">bool running() const</div><div class="ttdoc">Returns true if and only if the Node is operating.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00420">node.cpp:420</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aae28990628a86a07327f49973f2390df"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aae28990628a86a07327f49973f2390df">flow::net_flow::Node::m_servs</a></div><div class="ttdeci">Port_to_server_map m_servs</div><div class="ttdoc">The server sockets this Node is currently tracking.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03798">node.hpp:3798</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aaf0acf9de5f151727a43acce180a5e49"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aaf0acf9de5f151727a43acce180a5e49">flow::net_flow::Node::sock_pacing_process_q</a></div><div class="ttdeci">bool sock_pacing_process_q(Peer_socket::Ptr sock, Error_code *err_code, bool executing_after_delay)</div><div class="ttdoc">async_sock_low_lvl_packet_send_paced() pacing helper: Given that we are currently in the pacing time ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00849">low_lvl_io.cpp:849</a></div></div>
@@ -4412,8 +4412,8 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab13749ccdf4ab44445f21c77296ffa13"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab13749ccdf4ab44445f21c77296ffa13">flow::net_flow::Node::S_DEFAULT_CONN_METADATA</a></div><div class="ttdeci">static const uint8_t S_DEFAULT_CONN_METADATA</div><div class="ttdoc">Type and value to supply as user-supplied metadata in SYN, if user chooses to use [[a]sync_]connect()...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01403">node.hpp:1403</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab2595f47710ddb06cfb22b6710b7286e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab2595f47710ddb06cfb22b6710b7286e">flow::net_flow::Node::validate_options</a></div><div class="ttdeci">const Node_options &amp; validate_options(const Node_options &amp;opts, bool init, Error_code *err_code) const</div><div class="ttdoc">Given a new set of Node_options intended to replace (or initialize) a Node's m_opts,...</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00980">node.cpp:980</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab330b19f4039bab074251111789b568a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab330b19f4039bab074251111789b568a">flow::net_flow::Node::serv_create_forward_plus_ctor_args</a></div><div class="ttdeci">Server_socket * serv_create_forward_plus_ctor_args(const Peer_socket_options *child_sock_opts)</div><div class="ttdoc">Like sock_create_forward_plus_ctor_args() but for Server_sockets.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l04199">node.hpp:4199</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab427ebc124a6233ae48a7562662a6e81"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab427ebc124a6233ae48a7562662a6e81">flow::net_flow::Node::setup_drop_timer</a></div><div class="ttdeci">void setup_drop_timer(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Creates a new Drop Timer and saves it to sock-&gt;m_snd_drop_timer.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04498">peer_socket.cpp:4498</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab515b28350c43635728d6de0e37ccb94"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab515b28350c43635728d6de0e37ccb94">flow::net_flow::Node::handle_ack_to_established</a></div><div class="ttdeci">void handle_ack_to_established(Peer_socket::Ptr sock, boost::shared_ptr&lt; const Ack_packet &gt; ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, low-level ACK packet delivered to the given peer soc...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01990">peer_socket.cpp:1990</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab427ebc124a6233ae48a7562662a6e81"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab427ebc124a6233ae48a7562662a6e81">flow::net_flow::Node::setup_drop_timer</a></div><div class="ttdeci">void setup_drop_timer(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Creates a new Drop Timer and saves it to sock-&gt;m_snd_drop_timer.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04504">peer_socket.cpp:4504</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab515b28350c43635728d6de0e37ccb94"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab515b28350c43635728d6de0e37ccb94">flow::net_flow::Node::handle_ack_to_established</a></div><div class="ttdeci">void handle_ack_to_established(Peer_socket::Ptr sock, boost::shared_ptr&lt; const Ack_packet &gt; ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, low-level ACK packet delivered to the given peer soc...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01996">peer_socket.cpp:1996</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aba2e6fc905dbeef3ea9e31bf844f8da5"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aba2e6fc905dbeef3ea9e31bf844f8da5">flow::net_flow::Node::sync_connect</a></div><div class="ttdeci">Peer_socket::Ptr sync_connect(const Remote_endpoint &amp;to, const boost::chrono::duration&lt; Rep, Period &gt; &amp;max_wait, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">The blocking (synchronous) version of connect().</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03967">node.hpp:3967</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aba411df8746d5fd4db2d28df3a016f5e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aba411df8746d5fd4db2d28df3a016f5e">flow::net_flow::Node::listen_worker</a></div><div class="ttdeci">void listen_worker(flow_port_t local_port, const Peer_socket_options *child_sock_opts, Server_socket::Ptr *serv)</div><div class="ttdoc">Thread W implementation of listen().</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00218">server_socket.cpp:218</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_abb3d760b3c880b41e5a4ee7f2c13fd81"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#abb3d760b3c880b41e5a4ee7f2c13fd81">flow::net_flow::Node::handle_syn_ack_to_established</a></div><div class="ttdeci">void handle_syn_ack_to_established(Peer_socket::Ptr sock, boost::shared_ptr&lt; const Syn_ack_packet &gt; syn_ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, duplicate (equal to already-received SYN_ACK) low-le...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00539">peer_socket.cpp:539</a></div></div>
@@ -4421,56 +4421,56 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_abf0204e999b5dc28ee9b5db6eae9aa1a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#abf0204e999b5dc28ee9b5db6eae9aa1a">flow::net_flow::Node::serv_peer_socket_acceptable</a></div><div class="ttdeci">void serv_peer_socket_acceptable(Server_socket::Ptr serv, Peer_socket::Ptr sock)</div><div class="ttdoc">Records that an unestablished socket sock (Peer_socket::Int_state::S_SYN_RCVD) has just become establ...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00838">server_socket.cpp:838</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_abf80b7de1398e93d1d4289ef5bf2ae2c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#abf80b7de1398e93d1d4289ef5bf2ae2c">flow::net_flow::Node::handle_data_to_syn_rcvd</a></div><div class="ttdeci">void handle_data_to_syn_rcvd(Peer_socket::Ptr sock, boost::shared_ptr&lt; Data_packet &gt; packet)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, low-level DATA packet delivered to the given peer so...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00701">server_socket.cpp:701</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_abfc902bc41381d21f4ca2d4073bb617c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#abfc902bc41381d21f4ca2d4073bb617c">flow::net_flow::Node::Socket_id_to_socket_map</a></div><div class="ttdeci">boost::unordered_map&lt; Socket_id, Peer_socket::Ptr &gt; Socket_id_to_socket_map</div><div class="ttdoc">A map from the connection ID (= remote-local socket pair) to the local Peer_socket that is the local ...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01450">node.hpp:1450</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac1485c07049d4bee70ad4ef2fc07bf12"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac1485c07049d4bee70ad4ef2fc07bf12">flow::net_flow::Node::setup_connection_timers</a></div><div class="ttdeci">void setup_connection_timers(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, bool initial)</div><div class="ttdoc">Assuming we've just sent SYN or SYN_ACK, sets up an asynchronous scheduled task to fire within some a...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04323">peer_socket.cpp:4323</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac2fdb686165aae42f474cc655fca80c0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac2fdb686165aae42f474cc655fca80c0">flow::net_flow::Node::log_rcv_window</a></div><div class="ttdeci">void log_rcv_window(Peer_socket::Const_ptr sock, bool force_verbose_info_logging=false) const</div><div class="ttdoc">Logs TRACE or DATA messages that show the detailed state of the receiving sequence number space.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01904">peer_socket.cpp:1904</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac397d3fd163f1456b7bb370a3cff951c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">flow::net_flow::Node::sock_rcv_wnd</a></div><div class="ttdeci">size_t sock_rcv_wnd(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Computes and returns the currently correct rcv_wnd value; that is the amount of space free in Receive...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05518">peer_socket.cpp:5518</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac1485c07049d4bee70ad4ef2fc07bf12"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac1485c07049d4bee70ad4ef2fc07bf12">flow::net_flow::Node::setup_connection_timers</a></div><div class="ttdeci">void setup_connection_timers(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, bool initial)</div><div class="ttdoc">Assuming we've just sent SYN or SYN_ACK, sets up an asynchronous scheduled task to fire within some a...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04329">peer_socket.cpp:4329</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac2fdb686165aae42f474cc655fca80c0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac2fdb686165aae42f474cc655fca80c0">flow::net_flow::Node::log_rcv_window</a></div><div class="ttdeci">void log_rcv_window(Peer_socket::Const_ptr sock, bool force_verbose_info_logging=false) const</div><div class="ttdoc">Logs TRACE or DATA messages that show the detailed state of the receiving sequence number space.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01910">peer_socket.cpp:1910</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac397d3fd163f1456b7bb370a3cff951c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">flow::net_flow::Node::sock_rcv_wnd</a></div><div class="ttdeci">size_t sock_rcv_wnd(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Computes and returns the currently correct rcv_wnd value; that is the amount of space free in Receive...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05524">peer_socket.cpp:5524</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac3c67514c259404de3f27a8cae8b0567"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac3c67514c259404de3f27a8cae8b0567">flow::net_flow::Node::accept</a></div><div class="ttdeci">Peer_socket::Ptr accept(Server_socket::Ptr serv, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking serv-&gt;accept() for server socket serv in all cases except when serv-&gt;s...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00300">server_socket.cpp:300</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac619d1a96cc62d223f990ee6a3c909ff"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac619d1a96cc62d223f990ee6a3c909ff">flow::net_flow::Node::connect_worker</a></div><div class="ttdeci">void connect_worker(const Remote_endpoint &amp;to, const boost::asio::const_buffer &amp;serialized_metadata, const Peer_socket_options *opts, Peer_socket::Ptr *sock)</div><div class="ttdoc">Thread W implementation of connect().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04005">peer_socket.cpp:4005</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac910f24e5a176c4aa01992b08b62146a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac910f24e5a176c4aa01992b08b62146a">flow::net_flow::Node::drop_pkts_on_acks</a></div><div class="ttdeci">bool drop_pkts_on_acks(Peer_socket::Ptr sock, const Peer_socket::Sent_pkt_ordered_by_when_iter &amp;last_dropped_pkt_it, size_t *cong_ctl_dropped_pkts, size_t *cong_ctl_dropped_bytes, size_t *dropped_pkts, size_t *dropped_bytes, std::vector&lt; Peer_socket::order_num_t &gt; *pkts_marked_to_drop)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that acts on the determination made by categorize_pkts_...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03102">peer_socket.cpp:3102</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac619d1a96cc62d223f990ee6a3c909ff"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac619d1a96cc62d223f990ee6a3c909ff">flow::net_flow::Node::connect_worker</a></div><div class="ttdeci">void connect_worker(const Remote_endpoint &amp;to, const boost::asio::const_buffer &amp;serialized_metadata, const Peer_socket_options *opts, Peer_socket::Ptr *sock)</div><div class="ttdoc">Thread W implementation of connect().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04011">peer_socket.cpp:4011</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac910f24e5a176c4aa01992b08b62146a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac910f24e5a176c4aa01992b08b62146a">flow::net_flow::Node::drop_pkts_on_acks</a></div><div class="ttdeci">bool drop_pkts_on_acks(Peer_socket::Ptr sock, const Peer_socket::Sent_pkt_ordered_by_when_iter &amp;last_dropped_pkt_it, size_t *cong_ctl_dropped_pkts, size_t *cong_ctl_dropped_bytes, size_t *dropped_pkts, size_t *dropped_bytes, std::vector&lt; Peer_socket::order_num_t &gt; *pkts_marked_to_drop)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that acts on the determination made by categorize_pkts_...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03108">peer_socket.cpp:3108</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac9f6edfb36abcd0402c4bd75b595f271"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac9f6edfb36abcd0402c4bd75b595f271">flow::net_flow::Node::S_MAX_LATER_ACKS_BEFORE_CONSIDERING_DROPPED</a></div><div class="ttdeci">static const Peer_socket::Sent_packet::ack_count_t S_MAX_LATER_ACKS_BEFORE_CONSIDERING_DROPPED</div><div class="ttdoc">For a given unacknowledged sent packet P, the maximum number of times any individual packet with high...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03686">node.hpp:3686</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_acaf55766783893827061fd85cab2634f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#acaf55766783893827061fd85cab2634f">flow::net_flow::Node::async_low_lvl_syn_ack_ack_send_or_close_immediately</a></div><div class="ttdeci">bool async_low_lvl_syn_ack_ack_send_or_close_immediately(const Peer_socket::Ptr &amp;sock, boost::shared_ptr&lt; const Syn_ack_packet &gt; &amp;syn_ack)</div><div class="ttdoc">Helper to create, fully fill out, and asynchronously send via async_sock_low_lvl_packet_send_or_close...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05839">peer_socket.cpp:5839</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_acaf55766783893827061fd85cab2634f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#acaf55766783893827061fd85cab2634f">flow::net_flow::Node::async_low_lvl_syn_ack_ack_send_or_close_immediately</a></div><div class="ttdeci">bool async_low_lvl_syn_ack_ack_send_or_close_immediately(const Peer_socket::Ptr &amp;sock, boost::shared_ptr&lt; const Syn_ack_packet &gt; &amp;syn_ack)</div><div class="ttdoc">Helper to create, fully fill out, and asynchronously send via async_sock_low_lvl_packet_send_or_close...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05845">peer_socket.cpp:5845</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_acd93ba39d6a9cdee60c2ad7da1085902"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#acd93ba39d6a9cdee60c2ad7da1085902">flow::net_flow::Node::Node</a></div><div class="ttdeci">Node(log::Logger *logger, const util::Udp_endpoint &amp;low_lvl_endpoint, Net_env_simulator *net_env_sim=0, Error_code *err_code=0, const Node_options &amp;opts=Node_options())</div><div class="ttdoc">Constructs Node.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00040">node.cpp:40</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_acea4db94c4fb86ddaa2502c2d7e128ea"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#acea4db94c4fb86ddaa2502c2d7e128ea">flow::net_flow::Node::m_packet_data</a></div><div class="ttdeci">util::Blob m_packet_data</div><div class="ttdoc">Stores incoming raw packet data; re-used repeatedly for possible performance gains.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03774">node.hpp:3774</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_acfbd969c7a16b2ea8bb7f0db6fa454df"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#acfbd969c7a16b2ea8bb7f0db6fa454df">flow::net_flow::Node::sock_categorize_data_to_established</a></div><div class="ttdeci">Error_code sock_categorize_data_to_established(Peer_socket::Ptr sock, boost::shared_ptr&lt; const Data_packet &gt; packet, bool *dupe, bool *slide, size_t *slide_size)</div><div class="ttdoc">Helper for handle_data_to_established() that categorizes the DATA packet received as either illegal; ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00825">peer_socket.cpp:825</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad03aa88df3d1d3981454ee3356e868c1"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad03aa88df3d1d3981454ee3356e868c1">flow::net_flow::Node::async_sock_low_lvl_rst_send</a></div><div class="ttdeci">void async_sock_low_lvl_rst_send(Peer_socket::Ptr sock)</div><div class="ttdoc">Sends an RST to the other side of the given socket asynchronously when possible.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l01033">low_lvl_io.cpp:1033</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad100464cf0126dbbad39bde1c90a774f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad100464cf0126dbbad39bde1c90a774f">flow::net_flow::Node::event_set_create</a></div><div class="ttdeci">Event_set::Ptr event_set_create(Error_code *err_code=0)</div><div class="ttdoc">Creates a new Event_set in Event_set::State::S_INACTIVE state with no sockets/events stored; returns ...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l00881">event_set.cpp:881</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad2840a7a95f16b7e222e449e3d6b9aca"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad2840a7a95f16b7e222e449e3d6b9aca">flow::net_flow::Node::interrupt_all_waits_worker</a></div><div class="ttdeci">void interrupt_all_waits_worker()</div><div class="ttdoc">Thread W implementation of interrupt_all_waits().</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01421">event_set.cpp:1421</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad502e0a992a79b71af42a9cdc20a4280"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">flow::net_flow::Node::sock_set_state</a></div><div class="ttdeci">void sock_set_state(Peer_socket::Ptr sock, Peer_socket::State state, Peer_socket::Open_sub_state open_sub_state=Peer_socket::Open_sub_state::S_CONNECTED)</div><div class="ttdoc">Sets Peer_socket::m_state and Peer_socket::m_open_sub_state.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06112">peer_socket.cpp:6112</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad608f9bbe76426f4fbf4bf5af908e4e0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad608f9bbe76426f4fbf4bf5af908e4e0">flow::net_flow::Node::receive_emptied_rcv_buf_while_disconnecting</a></div><div class="ttdeci">void receive_emptied_rcv_buf_while_disconnecting(Peer_socket::Ptr sock)</div><div class="ttdoc">Placed by receive() onto W during a graceful close, after the Receive buffer had been emptied by the ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05551">peer_socket.cpp:5551</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ada9357f6ce9d5fc249b1cc176afdc471"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ada9357f6ce9d5fc249b1cc176afdc471">flow::net_flow::Node::sock_disconnect_detected</a></div><div class="ttdeci">void sock_disconnect_detected(Peer_socket::Ptr sock, const Error_code &amp;disconnect_cause, bool close)</div><div class="ttdoc">Records that thread W shows underlying connection is broken (graceful termination,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06134">peer_socket.cpp:6134</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_addbb96858fd7b3c9ddd7c6fe8078809c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#addbb96858fd7b3c9ddd7c6fe8078809c">flow::net_flow::Node::receive</a></div><div class="ttdeci">size_t receive(Peer_socket::Ptr sock, const Function&lt; size_t()&gt; &amp;rcv_buf_consume_func, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking sock-&gt;receive() for socket sock in all cases except when sock-&gt;state()...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05083">peer_socket.cpp:5083</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_addd654cb6b1ccff34ddccbe5226be8f0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#addd654cb6b1ccff34ddccbe5226be8f0">flow::net_flow::Node::handle_connection_rexmit_timer_event</a></div><div class="ttdeci">void handle_connection_rexmit_timer_event(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Handles the triggering of the retransmit timer wait set up by setup_connection_timers(); it will re-s...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04402">peer_socket.cpp:4402</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad502e0a992a79b71af42a9cdc20a4280"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">flow::net_flow::Node::sock_set_state</a></div><div class="ttdeci">void sock_set_state(Peer_socket::Ptr sock, Peer_socket::State state, Peer_socket::Open_sub_state open_sub_state=Peer_socket::Open_sub_state::S_CONNECTED)</div><div class="ttdoc">Sets Peer_socket::m_state and Peer_socket::m_open_sub_state.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06118">peer_socket.cpp:6118</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad608f9bbe76426f4fbf4bf5af908e4e0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad608f9bbe76426f4fbf4bf5af908e4e0">flow::net_flow::Node::receive_emptied_rcv_buf_while_disconnecting</a></div><div class="ttdeci">void receive_emptied_rcv_buf_while_disconnecting(Peer_socket::Ptr sock)</div><div class="ttdoc">Placed by receive() onto W during a graceful close, after the Receive buffer had been emptied by the ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05557">peer_socket.cpp:5557</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ada9357f6ce9d5fc249b1cc176afdc471"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ada9357f6ce9d5fc249b1cc176afdc471">flow::net_flow::Node::sock_disconnect_detected</a></div><div class="ttdeci">void sock_disconnect_detected(Peer_socket::Ptr sock, const Error_code &amp;disconnect_cause, bool close)</div><div class="ttdoc">Records that thread W shows underlying connection is broken (graceful termination,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06140">peer_socket.cpp:6140</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_addbb96858fd7b3c9ddd7c6fe8078809c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#addbb96858fd7b3c9ddd7c6fe8078809c">flow::net_flow::Node::receive</a></div><div class="ttdeci">size_t receive(Peer_socket::Ptr sock, const Function&lt; size_t()&gt; &amp;rcv_buf_consume_func, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking sock-&gt;receive() for socket sock in all cases except when sock-&gt;state()...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05089">peer_socket.cpp:5089</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_addd654cb6b1ccff34ddccbe5226be8f0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#addd654cb6b1ccff34ddccbe5226be8f0">flow::net_flow::Node::handle_connection_rexmit_timer_event</a></div><div class="ttdeci">void handle_connection_rexmit_timer_event(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Handles the triggering of the retransmit timer wait set up by setup_connection_timers(); it will re-s...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04408">peer_socket.cpp:4408</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade08f0457943f803c23b55649139c0d3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade08f0457943f803c23b55649139c0d3">flow::net_flow::Node::m_opts</a></div><div class="ttdeci">Node_options m_opts</div><div class="ttdoc">This Node's global set of options.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03704">node.hpp:3704</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade12d2ebbd88b62432089a3a071b9514"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade12d2ebbd88b62432089a3a071b9514">flow::net_flow::Node::async_low_lvl_recv</a></div><div class="ttdeci">void async_low_lvl_recv()</div><div class="ttdoc">Registers so that during the current or next m_task_engine.run(), the latter will wait for a receivab...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00031">low_lvl_io.cpp:31</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade49e7bc7202a0adf33fec2d93d1b177"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">flow::net_flow::Node::close_connection_immediately</a></div><div class="ttdeci">void close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">A thread W method that handles the transition of the given socket from OPEN (any sub-state) to CLOSED...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05683">peer_socket.cpp:5683</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade529b5452c9fe363ae468346e662ceb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade529b5452c9fe363ae468346e662ceb">flow::net_flow::Node::sock_disconnect_completed</a></div><div class="ttdeci">void sock_disconnect_completed(Peer_socket::Ptr sock)</div><div class="ttdoc">While in S_OPEN+S_DISCONNECTING state (i.e., after beginning a graceful close with sock_disconnect_de...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06155">peer_socket.cpp:6155</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_adeccd8c86fcd54733e42593629fad96b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#adeccd8c86fcd54733e42593629fad96b">flow::net_flow::Node::compute_rtt_on_ack</a></div><div class="ttdeci">Fine_duration compute_rtt_on_ack(Peer_socket::Sent_packet::Const_ptr flying_pkt, const Fine_time_pt &amp;time_now, Ack_packet::Individual_ack::Const_ptr ack, const Peer_socket::Sent_packet::Sent_when **sent_when) const</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that computes the RTT implied by a given individual ack...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02870">peer_socket.cpp:2870</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade49e7bc7202a0adf33fec2d93d1b177"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">flow::net_flow::Node::close_connection_immediately</a></div><div class="ttdeci">void close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">A thread W method that handles the transition of the given socket from OPEN (any sub-state) to CLOSED...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05689">peer_socket.cpp:5689</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade529b5452c9fe363ae468346e662ceb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade529b5452c9fe363ae468346e662ceb">flow::net_flow::Node::sock_disconnect_completed</a></div><div class="ttdeci">void sock_disconnect_completed(Peer_socket::Ptr sock)</div><div class="ttdoc">While in S_OPEN+S_DISCONNECTING state (i.e., after beginning a graceful close with sock_disconnect_de...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06161">peer_socket.cpp:6161</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_adeccd8c86fcd54733e42593629fad96b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#adeccd8c86fcd54733e42593629fad96b">flow::net_flow::Node::compute_rtt_on_ack</a></div><div class="ttdeci">Fine_duration compute_rtt_on_ack(Peer_socket::Sent_packet::Const_ptr flying_pkt, const Fine_time_pt &amp;time_now, Ack_packet::Individual_ack::Const_ptr ack, const Peer_socket::Sent_packet::Sent_when **sent_when) const</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that computes the RTT implied by a given individual ack...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02876">peer_socket.cpp:2876</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_adf6d71af81def2d030f0fef159c1b06d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#adf6d71af81def2d030f0fef159c1b06d">flow::net_flow::Node::close_empty_server_immediately</a></div><div class="ttdeci">void close_empty_server_immediately(const flow_port_t local_port, Server_socket::Ptr serv, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">Handles the transition of the given server socket from S_LISTENING/S_CLOSING to S_CLOSED (including e...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00364">server_socket.cpp:364</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae43345472c4f41933a9c16d114cc937b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae43345472c4f41933a9c16d114cc937b">flow::net_flow::Node::m_event_sets</a></div><div class="ttdeci">Event_sets m_event_sets</div><div class="ttdoc">Every Event_set to have been returned by event_set_create() and not subsequently reached Event_set::S...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03804">node.hpp:3804</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae536f016607677a945ad42034a21e82a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae536f016607677a945ad42034a21e82a">flow::net_flow::Node::m_rnd_security_tokens</a></div><div class="ttdeci">util::Rnd_gen_uniform_range&lt; Peer_socket::security_token_t &gt; m_rnd_security_tokens</div><div class="ttdoc">Random number generator for picking security tokens; seeded on time at Node construction and generate...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03786">node.hpp:3786</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae996cab95eb139d00f0d430093e64a5f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae996cab95eb139d00f0d430093e64a5f">flow::net_flow::Node::interrupt_all_waits_internal_sig_handler</a></div><div class="ttdeci">void interrupt_all_waits_internal_sig_handler(const Error_code &amp;sys_err_code, int sig_number)</div><div class="ttdoc">signal_set handler, executed on SIGINT and SIGTERM, if user has enabled this feature: causes interrup...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01456">event_set.cpp:1456</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae9a0e5492b9ea005cc12c20c8e7cec9a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae9a0e5492b9ea005cc12c20c8e7cec9a">flow::net_flow::Node::connect_with_metadata</a></div><div class="ttdeci">Peer_socket::Ptr connect_with_metadata(const Remote_endpoint &amp;to, const boost::asio::const_buffer &amp;serialized_metadata, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">Same as connect() but sends, as part of the connection handshake, the user-supplied metadata,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03951">peer_socket.cpp:3951</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae9b88eadca41228fe6a671f2f14ead0b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae9b88eadca41228fe6a671f2f14ead0b">flow::net_flow::Node::new_round_trip_time_sample</a></div><div class="ttdeci">void new_round_trip_time_sample(Peer_socket::Ptr sock, Fine_duration round_trip_time)</div><div class="ttdoc">Handles a just-computed new RTT (round trip time) measurement for an individual packet earlier sent: ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03497">peer_socket.cpp:3497</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae9a0e5492b9ea005cc12c20c8e7cec9a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae9a0e5492b9ea005cc12c20c8e7cec9a">flow::net_flow::Node::connect_with_metadata</a></div><div class="ttdeci">Peer_socket::Ptr connect_with_metadata(const Remote_endpoint &amp;to, const boost::asio::const_buffer &amp;serialized_metadata, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">Same as connect() but sends, as part of the connection handshake, the user-supplied metadata,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03957">peer_socket.cpp:3957</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae9b88eadca41228fe6a671f2f14ead0b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae9b88eadca41228fe6a671f2f14ead0b">flow::net_flow::Node::new_round_trip_time_sample</a></div><div class="ttdeci">void new_round_trip_time_sample(Peer_socket::Ptr sock, Fine_duration round_trip_time)</div><div class="ttdoc">Handles a just-computed new RTT (round trip time) measurement for an individual packet earlier sent: ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03503">peer_socket.cpp:3503</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aee8466d9c810da5edea443d665b24dcb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aee8466d9c810da5edea443d665b24dcb">flow::net_flow::Node::perform_regular_infrequent_tasks</a></div><div class="ttdeci">void perform_regular_infrequent_tasks(bool reschedule)</div><div class="ttdoc">Performs low-priority tasks that should be run on an infrequent, regular basis, such as stat logging ...</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l01117">node.cpp:1117</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aee89be07daf7d024921381a4bafe1289"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aee89be07daf7d024921381a4bafe1289">flow::net_flow::Node::m_low_lvl_endpoint</a></div><div class="ttdeci">util::Udp_endpoint m_low_lvl_endpoint</div><div class="ttdoc">After we bind m_low_lvl_sock to a UDP endpoint, this is a copy of that endpoint.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03764">node.hpp:3764</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_af39d69abde4efa88d5d40e1c529c1a25"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#af39d69abde4efa88d5d40e1c529c1a25">flow::net_flow::Node::ok_to_rexmit_or_close</a></div><div class="ttdeci">bool ok_to_rexmit_or_close(Peer_socket::Ptr sock, const Peer_socket::Sent_pkt_ordered_by_when_iter &amp;pkt_it, bool defer_delta_check)</div><div class="ttdoc">Checks whether the given sent packet has been retransmitted the maximum number of allowed times; if s...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03921">peer_socket.cpp:3921</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_af39d69abde4efa88d5d40e1c529c1a25"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#af39d69abde4efa88d5d40e1c529c1a25">flow::net_flow::Node::ok_to_rexmit_or_close</a></div><div class="ttdeci">bool ok_to_rexmit_or_close(Peer_socket::Ptr sock, const Peer_socket::Sent_pkt_ordered_by_when_iter &amp;pkt_it, bool defer_delta_check)</div><div class="ttdoc">Checks whether the given sent packet has been retransmitted the maximum number of allowed times; if s...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03927">peer_socket.cpp:3927</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_af5597a417d03e2bed87cd772ef5cef29"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">flow::net_flow::Node::m_task_engine</a></div><div class="ttdeci">util::Task_engine m_task_engine</div><div class="ttdoc">The main loop engine, functioning in the single-threaded-but-asynchronous callback-based &quot;reactor&quot; st...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03739">node.hpp:3739</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afb88dafa8ec5c1b412de86dfdccd9c8f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afb88dafa8ec5c1b412de86dfdccd9c8f">flow::net_flow::Node::sock_pacing_new_time_slice</a></div><div class="ttdeci">void sock_pacing_new_time_slice(Peer_socket::Ptr sock, const Fine_time_pt &amp;now)</div><div class="ttdoc">async_sock_low_lvl_packet_send_paced() pacing helper: Resets the socket's Send_pacing_data structure ...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00765">low_lvl_io.cpp:765</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afd6388a362531ada956a864fefff6011"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afd6388a362531ada956a864fefff6011">flow::net_flow::Node::m_ports</a></div><div class="ttdeci">Port_space m_ports</div><div class="ttdoc">Flow port space for both client and server sockets. All threads may access this.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03777">node.hpp:3777</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afdefbbb3c3b9f2f2866f6b4c770fa62d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afdefbbb3c3b9f2f2866f6b4c770fa62d">flow::net_flow::Node::event_set_fire_if_got_events</a></div><div class="ttdeci">void event_set_fire_if_got_events(Event_set::Ptr event_set)</div><div class="ttdoc">Check whether given Event_set contains any active sockets (Event_set::m_can); if so,...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01084">event_set.cpp:1084</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afe70a0c32695e417e7a09e0ba773f151"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">flow::net_flow::Node::rst_and_close_connection_immediately</a></div><div class="ttdeci">void rst_and_close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">Asynchronously send RST to the other side of the given socket and close_connection_immediately().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05803">peer_socket.cpp:5803</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afe70a0c32695e417e7a09e0ba773f151"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">flow::net_flow::Node::rst_and_close_connection_immediately</a></div><div class="ttdeci">void rst_and_close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">Asynchronously send RST to the other side of the given socket and close_connection_immediately().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05809">peer_socket.cpp:5809</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aff19033bff73d4f51766a9575c01f883"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aff19033bff73d4f51766a9575c01f883">flow::net_flow::Node::Event_sets</a></div><div class="ttdeci">boost::unordered_set&lt; Event_set::Ptr &gt; Event_sets</div><div class="ttdoc">A set of Event_set objects.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01456">node.hpp:1456</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_affbc6abb1e344c6e98d3ac8068a54670"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#affbc6abb1e344c6e98d3ac8068a54670">flow::net_flow::Node::drop_timer_action</a></div><div class="ttdeci">void drop_timer_action(Peer_socket::Ptr sock, bool drop_all_packets)</div><div class="ttdoc">Handles a Drop_timer (Peer_socket::m_snd_drop_timer) event in ESTABLISHED state by dropping the speci...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03317">peer_socket.cpp:3317</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00215">peer_socket.hpp:223</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1e1379f9a0269d6990f26bf1da045657"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1e1379f9a0269d6990f26bf1da045657">flow::net_flow::Peer_socket::Options_mutex</a></div><div class="ttdeci">util::Mutex_non_recursive Options_mutex</div><div class="ttdoc">Short-hand for high-performance, non-reentrant, exclusive mutex used to lock m_opts.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00885">peer_socket.hpp:885</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6a9bb727c8982f24bcf978c10c2c7345"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">flow::net_flow::Peer_socket::State</a></div><div class="ttdeci">State</div><div class="ttdoc">State of a Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00228">peer_socket.hpp:229</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6f48d01d1269c9d4260d972baa40e548"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">flow::net_flow::Peer_socket::Open_sub_state</a></div><div class="ttdeci">Open_sub_state</div><div class="ttdoc">The sub-state of a Peer_socket when state is State::S_OPEN.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00237">peer_socket.hpp:238</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_affbc6abb1e344c6e98d3ac8068a54670"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#affbc6abb1e344c6e98d3ac8068a54670">flow::net_flow::Node::drop_timer_action</a></div><div class="ttdeci">void drop_timer_action(Peer_socket::Ptr sock, bool drop_all_packets)</div><div class="ttdoc">Handles a Drop_timer (Peer_socket::m_snd_drop_timer) event in ESTABLISHED state by dropping the speci...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03323">peer_socket.cpp:3323</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00216">peer_socket.hpp:224</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1e1379f9a0269d6990f26bf1da045657"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1e1379f9a0269d6990f26bf1da045657">flow::net_flow::Peer_socket::Options_mutex</a></div><div class="ttdeci">util::Mutex_non_recursive Options_mutex</div><div class="ttdoc">Short-hand for high-performance, non-reentrant, exclusive mutex used to lock m_opts.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00886">peer_socket.hpp:886</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6a9bb727c8982f24bcf978c10c2c7345"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">flow::net_flow::Peer_socket::State</a></div><div class="ttdeci">State</div><div class="ttdoc">State of a Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00229">peer_socket.hpp:230</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6f48d01d1269c9d4260d972baa40e548"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">flow::net_flow::Peer_socket::Open_sub_state</a></div><div class="ttdeci">Open_sub_state</div><div class="ttdoc">The sub-state of a Peer_socket when state is State::S_OPEN.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00238">peer_socket.hpp:239</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">flow::net_flow::Peer_socket::Open_sub_state::S_CONNECTED</a></div><div class="ttdeci">@ S_CONNECTED</div><div class="ttdoc">This Peer_socket was created through a passive connect (Node::accept() and the like) or an active con...</div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a797a524b73e2626fcfefe1be64f4d481"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">flow::net_flow::Peer_socket::order_num_t</a></div><div class="ttdeci">Sequence_number::seq_num_t order_num_t</div><div class="ttdoc">Short-hand for order number type. 0 is reserved. Caution: Keep in sync with Drop_timer::packet_id_t.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00905">peer_socket.hpp:905</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">flow::net_flow::Peer_socket::Int_state</a></div><div class="ttdeci">Int_state</div><div class="ttdoc">The state of the socket (and the connection from this end's point of view) for the internal state mac...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00913">peer_socket.hpp:914</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a98c6729b318f28b61e144f8a9b1f4dfc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">flow::net_flow::Peer_socket::Options_lock</a></div><div class="ttdeci">util::Lock_guard&lt; Options_mutex &gt; Options_lock</div><div class="ttdoc">Short-hand for lock that acquires exclusive access to an Options_mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00888">peer_socket.hpp:888</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab7dc3b752b67295c82919c2f87aed60b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::iterator Sent_pkt_ordered_by_when_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00946">peer_socket.hpp:946</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ac974bdce3d2035d2af69078837f59482"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_const_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::const_iterator Sent_pkt_ordered_by_when_const_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00943">peer_socket.hpp:943</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a797a524b73e2626fcfefe1be64f4d481"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">flow::net_flow::Peer_socket::order_num_t</a></div><div class="ttdeci">Sequence_number::seq_num_t order_num_t</div><div class="ttdoc">Short-hand for order number type. 0 is reserved. Caution: Keep in sync with Drop_timer::packet_id_t.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00906">peer_socket.hpp:906</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">flow::net_flow::Peer_socket::Int_state</a></div><div class="ttdeci">Int_state</div><div class="ttdoc">The state of the socket (and the connection from this end's point of view) for the internal state mac...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00914">peer_socket.hpp:915</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a98c6729b318f28b61e144f8a9b1f4dfc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">flow::net_flow::Peer_socket::Options_lock</a></div><div class="ttdeci">util::Lock_guard&lt; Options_mutex &gt; Options_lock</div><div class="ttdoc">Short-hand for lock that acquires exclusive access to an Options_mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00889">peer_socket.hpp:889</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab7dc3b752b67295c82919c2f87aed60b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::iterator Sent_pkt_ordered_by_when_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00947">peer_socket.hpp:947</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ac974bdce3d2035d2af69078837f59482"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_const_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::const_iterator Sent_pkt_ordered_by_when_const_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00944">peer_socket.hpp:944</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Port__space_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Port__space.html">flow::net_flow::Port_space</a></div><div class="ttdoc">Internal net_flow class that maintains the available Flow-protocol port space, somewhat similarly to ...</div><div class="ttdef"><b>Definition:</b> <a href="port__space_8hpp_source.html#l00091">port_space.hpp:94</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_1_1Generator_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number_1_1Generator.html">flow::net_flow::Sequence_number::Generator</a></div><div class="ttdoc">An object of this type generates a series of initial sequence numbers (ISN) that are meant to be suff...</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00370">seq_num.hpp:373</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html">flow::net_flow::Sequence_number</a></div><div class="ttdoc">An internal net_flow sequence number identifying a piece of data.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00125">seq_num.hpp:126</a></div></div>
@@ -4497,7 +4497,7 @@
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_a152200ba9432e5ca229e41a1c5d9d226"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#a152200ba9432e5ca229e41a1c5d9d226">flow::net_flow::hash_value</a></div><div class="ttdeci">size_t hash_value(const Sequence_number &amp;seq_num)</div><div class="ttdoc">Free function that returns seq_num.hash(); has to be a free function named hash_value for boost....</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8cpp_source.html#l00275">seq_num.cpp:275</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_a8504aeca20f41a8f2b98ae04803a600e"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#a8504aeca20f41a8f2b98ae04803a600e">flow::net_flow::operator==</a></div><div class="ttdeci">bool operator==(const Remote_endpoint &amp;lhs, const Remote_endpoint &amp;rhs)</div><div class="ttdoc">Whether lhs is equal to rhs.</div><div class="ttdef"><b>Definition:</b> <a href="endpoint_8cpp_source.html#l00060">endpoint.cpp:60</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_a9dd0c9d8de00fab78d8b0a3f50dad2a9"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#a9dd0c9d8de00fab78d8b0a3f50dad2a9">flow::net_flow::S_PORT_ANY</a></div><div class="ttdeci">const flow_port_t S_PORT_ANY</div><div class="ttdoc">Special Flow port value used to indicate &quot;invalid port&quot; or &quot;please pick a random available ephemeral ...</div><div class="ttdef"><b>Definition:</b> <a href="port__space_8cpp_source.html#l00033">port_space.cpp:33</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a09a032f8e1e77a3afc0b7df115a773e1"><div class="ttname"><a href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">flow::util::setup_auto_cleanup</a></div><div class="ttdeci">Auto_cleanup setup_auto_cleanup(const Cleanup_func &amp;func)</div><div class="ttdoc">Provides a way to execute arbitrary (cleanup) code at the exit of the current block.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00282">util.hpp:282</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a09a032f8e1e77a3afc0b7df115a773e1"><div class="ttname"><a href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">flow::util::setup_auto_cleanup</a></div><div class="ttdeci">Auto_cleanup setup_auto_cleanup(const Cleanup_func &amp;func)</div><div class="ttdoc">Provides a way to execute arbitrary (cleanup) code at the exit of the current block.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00307">util.hpp:307</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a5d2247b715da63e4b960909561b90ae7"><div class="ttname"><a href="namespaceflow_1_1util.html#a5d2247b715da63e4b960909561b90ae7">flow::util::Lock_guard</a></div><div class="ttdeci">boost::unique_lock&lt; Mutex &gt; Lock_guard</div><div class="ttdoc">Short-hand for advanced-capability RAII lock guard for any mutex, ensuring exclusive ownership of tha...</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00265">util_fwd.hpp:265</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_aa60d3ba517b5f5cf408faa92d269256a"><div class="ttname"><a href="namespaceflow_1_1util.html#aa60d3ba517b5f5cf408faa92d269256a">flow::util::chrono_duration_to_fine_duration</a></div><div class="ttdeci">Fine_duration chrono_duration_to_fine_duration(const boost::chrono::duration&lt; Rep, Period &gt; &amp;dur)</div><div class="ttdoc">Helper that takes a non-negative duration of arbitrary precision/period and converts it to Fine_durat...</div><div class="ttdef"><b>Definition:</b> <a href="util_2detail_2util_8hpp_source.html#l00031">util.hpp:31</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_ab22fd89e165a9e6deaa174bc0dfdc8de"><div class="ttname"><a href="namespaceflow_1_1util.html#ab22fd89e165a9e6deaa174bc0dfdc8de">flow::util::Auto_cleanup</a></div><div class="ttdeci">boost::shared_ptr&lt; void &gt; Auto_cleanup</div><div class="ttdoc">Helper type for setup_auto_cleanup().</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00205">util_fwd.hpp:205</a></div></div>
@@ -4505,25 +4505,25 @@
 <div class="ttc" id="anamespaceflow_1_1util_html_af030c3119f060a9630afca31098a78a5"><div class="ttname"><a href="namespaceflow_1_1util.html#af030c3119f060a9630afca31098a78a5">flow::util::Thread</a></div><div class="ttdeci">boost::thread Thread</div><div class="ttdoc">Short-hand for standard thread class.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00078">util_fwd.hpp:78</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af09888b3a8feaff209b6625e493bc338"><div class="ttname"><a href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">flow::util::Blob</a></div><div class="ttdeci">Blob_with_log_context&lt;&gt; Blob</div><div class="ttdoc">A concrete Blob_with_log_context that compile-time-disables Basic_blob::share() and the sharing API d...</div><div class="ttdef"><b>Definition:</b> <a href="blob__fwd_8hpp_source.html#l00060">blob_fwd.hpp:60</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af1b28edb7bad743c1c77f6b982cc3196"><div class="ttname"><a href="namespaceflow_1_1util.html#af1b28edb7bad743c1c77f6b982cc3196">flow::util::Udp_endpoint</a></div><div class="ttdeci">boost::asio::ip::udp::endpoint Udp_endpoint</div><div class="ttdoc">Short-hand for the UDP endpoint (IP/port) type.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00208">util_fwd.hpp:208</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
-<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00386">common.hpp:386</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
+<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00391">common.hpp:391</a></div></div>
 <div class="ttc" id="anet__env__simulator_8hpp_html"><div class="ttname"><a href="net__env__simulator_8hpp.html">net_env_simulator.hpp</a></div></div>
 <div class="ttc" id="anet__flow_2error_2error_8hpp_html"><div class="ttname"><a href="net__flow_2error_2error_8hpp.html">error.hpp</a></div></div>
 <div class="ttc" id="anet__flow__fwd_8hpp_html"><div class="ttname"><a href="net__flow__fwd_8hpp.html">net_flow_fwd.hpp</a></div></div>
 <div class="ttc" id="apeer__socket_8hpp_html"><div class="ttname"><a href="peer__socket_8hpp.html">peer_socket.hpp</a></div></div>
 <div class="ttc" id="aport__space_8hpp_html"><div class="ttname"><a href="port__space_8hpp.html">port_space.hpp</a></div></div>
 <div class="ttc" id="aserver__socket_8hpp_html"><div class="ttname"><a href="server__socket_8hpp.html">server_socket.hpp</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a55bebcb04b4cc192e38023e58bfd761c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">flow::net_flow::Ack_packet::Individual_ack::Const_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; const Individual_ack &gt; Const_ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to immutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01203">low_lvl_packet.hpp:1203</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a55bebcb04b4cc192e38023e58bfd761c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">flow::net_flow::Ack_packet::Individual_ack::Const_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; const Individual_ack &gt; Const_ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to immutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01204">low_lvl_packet.hpp:1204</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Node_1_1Socket__id_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">flow::net_flow::Node::Socket_id</a></div><div class="ttdoc">The data nugget uniquely identifying a peer-to-peer connection from a remote endpoint to a port in th...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03903">node.hpp:3904</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Node_1_1Socket__id_html_a23527fa6deadda111d7c4c194a0ce177"><div class="ttname"><a href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html#a23527fa6deadda111d7c4c194a0ce177">flow::net_flow::Node::Socket_id::m_remote_endpoint</a></div><div class="ttdeci">const Remote_endpoint m_remote_endpoint</div><div class="ttdoc">The other side of the connection.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03908">node.hpp:3908</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Node_1_1Socket__id_html_a4f4e052de75d02fb4610df872be06186"><div class="ttname"><a href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html#a4f4e052de75d02fb4610df872be06186">flow::net_flow::Node::Socket_id::hash</a></div><div class="ttdeci">size_t hash() const</div><div class="ttdoc">Hash value of this Socket_id for unordered&lt;&gt;.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l01147">node.cpp:1147</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Node_1_1Socket__id_html_aefe916d29cee30dbc344532603aa9336"><div class="ttname"><a href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html#aefe916d29cee30dbc344532603aa9336">flow::net_flow::Node::Socket_id::m_local_port</a></div><div class="ttdeci">const flow_port_t m_local_port</div><div class="ttdoc">This side of the connection (within this Node).</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03910">node.hpp:3910</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Node__options_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Node__options.html">flow::net_flow::Node_options</a></div><div class="ttdoc">A set of low-level options affecting a single Flow Node, including Peer_socket objects and other obje...</div><div class="ttdef"><b>Definition:</b> <a href="options_8hpp_source.html#l00448">options.hpp:449</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Node__options_html_aacfe6175ac39447c107413853e578459"><div class="ttname"><a href="structflow_1_1net__flow_1_1Node__options.html#aacfe6175ac39447c107413853e578459">flow::net_flow::Node_options::opt_id_to_str</a></div><div class="ttdeci">static std::string opt_id_to_str(const std::string &amp;opt_id)</div><div class="ttdoc">Helper that, for a given option m_blah, takes something like &quot;m_blah_blah&quot; and returns the similar mo...</div><div class="ttdef"><b>Definition:</b> <a href="options_8cpp_source.html#l00160">options.cpp:160</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">flow::net_flow::Peer_socket::Sent_packet::Sent_when</a></div><div class="ttdoc">Data store to keep timing related info when a packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02282">peer_socket.hpp:2283</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a7913f73b4e2f164ca51ebb505b63c1f2"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2">flow::net_flow::Peer_socket::Sent_packet::ack_count_t</a></div><div class="ttdeci">uint16_t ack_count_t</div><div class="ttdoc">Type used for m_acks_after_me.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02193">peer_socket.hpp:2193</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">flow::net_flow::Peer_socket::Sent_packet::Sent_when</a></div><div class="ttdoc">Data store to keep timing related info when a packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02283">peer_socket.hpp:2284</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a7913f73b4e2f164ca51ebb505b63c1f2"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2">flow::net_flow::Peer_socket::Sent_packet::ack_count_t</a></div><div class="ttdeci">uint16_t ack_count_t</div><div class="ttdoc">Type used for m_acks_after_me.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02194">peer_socket.hpp:2194</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket__info_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket__info.html">flow::net_flow::Peer_socket_info</a></div><div class="ttdoc">A data store that keeps stats about the a Peer_socket connection.</div><div class="ttdef"><b>Definition:</b> <a href="info_8hpp_source.html#l00455">info.hpp:456</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket__options_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket__options.html">flow::net_flow::Peer_socket_options</a></div><div class="ttdoc">A set of low-level options affecting a single Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="options_8hpp_source.html#l00035">options.hpp:36</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Remote__endpoint_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Remote__endpoint.html">flow::net_flow::Remote_endpoint</a></div><div class="ttdoc">Represents the remote endpoint of a Flow-protocol connection; identifies the UDP endpoint of the remo...</div><div class="ttdef"><b>Definition:</b> <a href="endpoint_8hpp_source.html#l00092">endpoint.hpp:93</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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index 2b3415652..03ab5c53c 100644
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/op_8cpp_source.html b/doc/flow_doc/generated/html_full/op_8cpp_source.html
index dfca2e644..a5955fe36 100644
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 <div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>}</div>
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-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1async_1_1Op__list_html_a1aff00b9e7b67eb1bc4070533614dfc3"><div class="ttname"><a href="classflow_1_1async_1_1Op__list.html#a1aff00b9e7b67eb1bc4070533614dfc3">flow::async::Op_list::random_op</a></div><div class="ttdeci">const Op &amp; random_op(size_t *chosen_idx=0) const</div><div class="ttdoc">Returns (*this)[R], where we randomly select R as if by random_idx() and communicate it to the caller...</div><div class="ttdef"><b>Definition:</b> <a href="op_8cpp_source.html#l00051">op.cpp:51</a></div></div>
 <div class="ttc" id="aclassflow_1_1async_1_1Op__list_html_a3b9f96cfd38891bb254bf386c6e91df1"><div class="ttname"><a href="classflow_1_1async_1_1Op__list.html#a3b9f96cfd38891bb254bf386c6e91df1">flow::async::Op_list::Op_list</a></div><div class="ttdeci">Op_list(log::Logger *logger_ptr, size_t n_ops, const Create_op_func &amp;create_op_func)</div><div class="ttdoc">Populates the async::Op list, which is immutable after this returns.</div><div class="ttdef"><b>Definition:</b> <a href="op_8cpp_source.html#l00026">op.cpp:26</a></div></div>
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@@ -160,12 +160,12 @@
 <div class="ttc" id="anamespaceflow_1_1async_html"><div class="ttname"><a href="namespaceflow_1_1async.html">flow::async</a></div><div class="ttdoc">Flow module containing tools enabling multi-threaded event loops operating under the asynchronous-tas...</div><div class="ttdef"><b>Definition:</b> <a href="async__fwd_8hpp_source.html#l00074">async_fwd.hpp:75</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1async_html_a024042c64b7dc544a7a5587afa4b1949"><div class="ttname"><a href="namespaceflow_1_1async.html#a024042c64b7dc544a7a5587afa4b1949">flow::async::Op</a></div><div class="ttdeci">boost::any Op</div><div class="ttdoc">An object of this opaque type represents a collection of 1 or more async::Task, past or future,...</div><div class="ttdef"><b>Definition:</b> <a href="async__fwd_8hpp_source.html#l00153">async_fwd.hpp:153</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1async_html_a0a06794b16b72f2829ce3353557c8485a4d7a5700444c0570af37b1f9bcc6eb1f"><div class="ttname"><a href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485a4d7a5700444c0570af37b1f9bcc6eb1f">flow::async::Synchronicity::S_ASYNC</a></div><div class="ttdeci">@ S_ASYNC</div><div class="ttdoc">Simply post the given task to execute asynchronously in some execution context – as soon as the conte...</div></div>
-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
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 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/op_8hpp.html b/doc/flow_doc/generated/html_full/op_8hpp.html
index fb4e1cd6a..35e3fa1f5 100644
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/op_8hpp_source.html b/doc/flow_doc/generated/html_full/op_8hpp_source.html
index c55693138..f64d624ac 100644
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-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1async_1_1Op__list_html"><div class="ttname"><a href="classflow_1_1async_1_1Op__list.html">flow::async::Op_list</a></div><div class="ttdoc">Simple, immutable vector-like sequence of N opaque async::Op objects, usually corresponding to N work...</div><div class="ttdef"><b>Definition:</b> <a href="op_8hpp_source.html#l00056">op.hpp:58</a></div></div>
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@@ -242,7 +242,7 @@
 </div><!-- fragment --></div><!-- contents -->
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/option__set_8cpp_source.html b/doc/flow_doc/generated/html_full/option__set_8cpp_source.html
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-<div class="ttc" id="anamespaceflow_1_1util_html_a685b86585da2fa5186f51854e7ae1561"><div class="ttname"><a href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">flow::util::ostream_op_string</a></div><div class="ttdeci">std::string ostream_op_string(T const &amp;... ostream_args)</div><div class="ttdoc">Equivalent to ostream_op_to_string() but returns a new string by value instead of writing to the call...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00356">util.hpp:356</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a685b86585da2fa5186f51854e7ae1561"><div class="ttname"><a href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">flow::util::ostream_op_string</a></div><div class="ttdeci">std::string ostream_op_string(T const &amp;... ostream_args)</div><div class="ttdoc">Equivalent to ostream_op_to_string() but returns a new string by value instead of writing to the call...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00381">util.hpp:381</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/option__set_8hpp_source.html b/doc/flow_doc/generated/html_full/option__set_8hpp_source.html
index e8b07787d..359d65786 100644
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@@ -2348,7 +2348,7 @@
 <div class="line"><a id="l02276" name="l02276"></a><span class="lineno"> 2276</span> </div>
 <div class="line"><a id="l02277" name="l02277"></a><span class="lineno"> 2277</span>} <span class="comment">// namespace flow::cfg</span></div>
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+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/options_8hpp.html b/doc/flow_doc/generated/html_full/options_8hpp.html
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+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span>}; <span class="comment">// class Ostream_log_msg_writer</span></div>
 <div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span> </div>
 <div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>} <span class="comment">// namespace flow::log</span></div>
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+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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@@ -339,7 +339,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <div class="line"><a id="l01591" name="l01591"></a><span class="lineno"> 1591</span> </div>
 <div class="line"><a id="l01592" name="l01592"></a><span class="lineno"> 1592</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> acks_pending_before_this = sock-&gt;m_rcv_pending_acks.size();</div>
 <div class="line"><a id="l01593" name="l01593"></a><span class="lineno"> 1593</span> </div>
-<div class="line"><a id="l01594" name="l01594"></a><span class="lineno"> 1594</span>  <span class="comment">/* Just the starting sequence number sufficient to identify a single packet.  The time point saved</span></div>
-<div class="line"><a id="l01595" name="l01595"></a><span class="lineno"> 1595</span><span class="comment">   * here is subtracted from time_now() at ACK send time, to compute the artificial delay introduced</span></div>
-<div class="line"><a id="l01596" name="l01596"></a><span class="lineno"> 1596</span><span class="comment">   * by ACK delaying (explained just below).  This helps other side calculate a more accurate RTT by</span></div>
-<div class="line"><a id="l01597" name="l01597"></a><span class="lineno"> 1597</span><span class="comment">   * substracting the ACK delay from its RTT measurement. */</span></div>
-<div class="line"><a id="l01598" name="l01598"></a><span class="lineno"> 1598</span>  sock-&gt;m_rcv_pending_acks.push_back</div>
-<div class="line"><a id="l01599" name="l01599"></a><span class="lineno"> 1599</span>    (<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3">Peer_socket::Individual_ack::Ptr</a></div>
-<div class="line"><a id="l01600" name="l01600"></a><span class="lineno"> 1600</span>       (<span class="keyword">new</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">Peer_socket::Individual_ack</a>{ seq_num, rexmit_id, Fine_clock::now(), data_size }));</div>
-<div class="line"><a id="l01601" name="l01601"></a><span class="lineno"> 1601</span> </div>
-<div class="line"><a id="l01602" name="l01602"></a><span class="lineno"> 1602</span>  <span class="comment">/* m_rcv_pending_acks now stores at least one packet to acknowledge.  We can acknowledge it</span></div>
-<div class="line"><a id="l01603" name="l01603"></a><span class="lineno"> 1603</span><span class="comment">   * immediately (modulo UDP layer availability of course).  However, suppose there is a fast stream</span></div>
-<div class="line"><a id="l01604" name="l01604"></a><span class="lineno"> 1604</span><span class="comment">   * of packets coming in, such that several DATA packets were read in within one</span></div>
-<div class="line"><a id="l01605" name="l01605"></a><span class="lineno"> 1605</span><span class="comment">   * low_lvl_recv_and_handle() call.  Then each DATA packet will result in one ACK packet.</span></div>
-<div class="line"><a id="l01606" name="l01606"></a><span class="lineno"> 1606</span><span class="comment">   * This introduces a ton of overhead, as the header is quite large given that the payload is just</span></div>
-<div class="line"><a id="l01607" name="l01607"></a><span class="lineno"> 1607</span><span class="comment">   * a Sequence_number.  Instead we would want to pack all the DATA packets&#39; acknowledgments into</span></div>
-<div class="line"><a id="l01608" name="l01608"></a><span class="lineno"> 1608</span><span class="comment">   * one ACK packet (unless it overflows, in which case create more ACK packets as needed).  So we</span></div>
-<div class="line"><a id="l01609" name="l01609"></a><span class="lineno"> 1609</span><span class="comment">   * only accumulate the individual acknowledgments here; we will possibly send the actual ACK(s) in</span></div>
-<div class="line"><a id="l01610" name="l01610"></a><span class="lineno"> 1610</span><span class="comment">   * perform_accumulated_on_recv_tasks(), which runs at the end of low_lvl_recv_and_handle() (or its</span></div>
-<div class="line"><a id="l01611" name="l01611"></a><span class="lineno"> 1611</span><span class="comment">   * bro, the async part of async_wait_latency_then_handle_incoming()).</span></div>
-<div class="line"><a id="l01612" name="l01612"></a><span class="lineno"> 1612</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01613" name="l01613"></a><span class="lineno"> 1613</span><span class="comment">   * Caveat: The above is rock-solid if the different DATA packets being acked were contiguous to</span></div>
-<div class="line"><a id="l01614" name="l01614"></a><span class="lineno"> 1614</span><span class="comment">   * each other chronologically.  What if there is another type of packet between some two of these</span></div>
-<div class="line"><a id="l01615" name="l01615"></a><span class="lineno"> 1615</span><span class="comment">   * DATAs?  Well, it depends on what it is.  Ignoring the misbehaving/duplicate/whatever packets</span></div>
-<div class="line"><a id="l01616" name="l01616"></a><span class="lineno"> 1616</span><span class="comment">   * (SYN, for example) -- which will just be discarded basically -- let&#39;s consider the</span></div>
-<div class="line"><a id="l01617" name="l01617"></a><span class="lineno"> 1617</span><span class="comment">   * possibilities.  If the packet is ACK, then it is irrelevant; NetFlow (like TCP) is full-duplex</span></div>
-<div class="line"><a id="l01618" name="l01618"></a><span class="lineno"> 1618</span><span class="comment">   * (actually more so, since there&#39;s no DATA+ACK piggy-backing), therefore the micro-ordering of</span></div>
-<div class="line"><a id="l01619" name="l01619"></a><span class="lineno"> 1619</span><span class="comment">   * traffic in opposite directions is irrelevant.  If the packet is RST, then that means the socket</span></div>
-<div class="line"><a id="l01620" name="l01620"></a><span class="lineno"> 1620</span><span class="comment">   * will get closed (no longer ESTABLISHED) before we get a chance to send any of the individual</span></div>
-<div class="line"><a id="l01621" name="l01621"></a><span class="lineno"> 1621</span><span class="comment">   * acknowledgments.  However, that is more or less OK; if the other side sent RST, then they won&#39;t</span></div>
-<div class="line"><a id="l01622" name="l01622"></a><span class="lineno"> 1622</span><span class="comment">   * accept any ACKs we may send them anyway.  The only other possibility has to with graceful close,</span></div>
-<div class="line"><a id="l01623" name="l01623"></a><span class="lineno"> 1623</span><span class="comment">   * but that is not yet implemented.</span></div>
-<div class="line"><a id="l01624" name="l01624"></a><span class="lineno"> 1624</span><span class="comment">   * @todo Revisit this when graceful close is implemented.  (Preliminary idea: force immediate ACK</span></div>
-<div class="line"><a id="l01625" name="l01625"></a><span class="lineno"> 1625</span><span class="comment">   * handling when FIN/etc. detected?  Or something.) */</span></div>
-<div class="line"><a id="l01626" name="l01626"></a><span class="lineno"> 1626</span> </div>
-<div class="line"><a id="l01627" name="l01627"></a><span class="lineno"> 1627</span>  <span class="keywordflow">if</span> (m_socks_with_accumulated_pending_acks.insert(sock).second)</div>
-<div class="line"><a id="l01628" name="l01628"></a><span class="lineno"> 1628</span>  {</div>
-<div class="line"><a id="l01629" name="l01629"></a><span class="lineno"> 1629</span>    <span class="comment">/* First acknowledgment to be accumulated in this handler (low_lvl_recv_and_handle() or</span></div>
-<div class="line"><a id="l01630" name="l01630"></a><span class="lineno"> 1630</span><span class="comment">     * async part of async_wait_latency_then_handle_incoming()).  So mark down whether at that time there were</span></div>
-<div class="line"><a id="l01631" name="l01631"></a><span class="lineno"> 1631</span><span class="comment">     * already timer-delayed acknowledgments pending (and how many).  See</span></div>
-<div class="line"><a id="l01632" name="l01632"></a><span class="lineno"> 1632</span><span class="comment">     * sock_perform_accumulated_on_recv_tasks() for details on delayed ACKs. */</span></div>
-<div class="line"><a id="l01633" name="l01633"></a><span class="lineno"> 1633</span>    sock-&gt;m_rcv_pending_acks_size_at_recv_handler_start = acks_pending_before_this;</div>
-<div class="line"><a id="l01634" name="l01634"></a><span class="lineno"> 1634</span>  }</div>
-<div class="line"><a id="l01635" name="l01635"></a><span class="lineno"> 1635</span>  <span class="comment">// else already had registered pending acknowledgment in this handler.</span></div>
-<div class="line"><a id="l01636" name="l01636"></a><span class="lineno"> 1636</span>} <span class="comment">// Node::async_acknowledge_packet()</span></div>
-<div class="line"><a id="l01637" name="l01637"></a><span class="lineno"> 1637</span> </div>
-<div class="line"><a id="l01638" name="l01638"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a45583714bc147300158f074ecacce0fd"> 1638</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a45583714bc147300158f074ecacce0fd">Node::handle_accumulated_pending_acks</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
-<div class="line"><a id="l01639" name="l01639"></a><span class="lineno"> 1639</span>{</div>
-<div class="line"><a id="l01640" name="l01640"></a><span class="lineno"> 1640</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
-<div class="line"><a id="l01641" name="l01641"></a><span class="lineno"> 1641</span>  <span class="keyword">using </span>boost::chrono::microseconds;</div>
-<div class="line"><a id="l01642" name="l01642"></a><span class="lineno"> 1642</span>  <span class="keyword">using </span>boost::chrono::duration_cast;</div>
-<div class="line"><a id="l01643" name="l01643"></a><span class="lineno"> 1643</span>  <span class="keyword">using </span>boost::chrono::round;</div>
-<div class="line"><a id="l01644" name="l01644"></a><span class="lineno"> 1644</span>  <span class="keyword">using </span>std::vector;</div>
-<div class="line"><a id="l01645" name="l01645"></a><span class="lineno"> 1645</span> </div>
-<div class="line"><a id="l01646" name="l01646"></a><span class="lineno"> 1646</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l01647" name="l01647"></a><span class="lineno"> 1647</span> </div>
-<div class="line"><a id="l01648" name="l01648"></a><span class="lineno"> 1648</span>  <span class="comment">// For background see Node::perform_accumulated_on_recv_tasks().</span></div>
-<div class="line"><a id="l01649" name="l01649"></a><span class="lineno"> 1649</span> </div>
-<div class="line"><a id="l01650" name="l01650"></a><span class="lineno"> 1650</span>  <span class="comment">// For brevity and speed:</span></div>
-<div class="line"><a id="l01651" name="l01651"></a><span class="lineno"> 1651</span>  vector&lt;Peer_socket::Individual_ack::Ptr&gt;&amp; pending_acks = sock-&gt;m_rcv_pending_acks;</div>
-<div class="line"><a id="l01652" name="l01652"></a><span class="lineno"> 1652</span> </div>
-<div class="line"><a id="l01653" name="l01653"></a><span class="lineno"> 1653</span>  <span class="keywordflow">if</span> (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>)</div>
-<div class="line"><a id="l01654" name="l01654"></a><span class="lineno"> 1654</span>  {</div>
-<div class="line"><a id="l01655" name="l01655"></a><span class="lineno"> 1655</span>    <span class="comment">// For example, we got DATA and then RST on the same socket almost simultaneously.</span></div>
-<div class="line"><a id="l01656" name="l01656"></a><span class="lineno"> 1656</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Was about to perform accumulated acknowledgment tasks on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] but skipping because &quot;</span></div>
-<div class="line"><a id="l01657" name="l01657"></a><span class="lineno"> 1657</span>                   <span class="stringliteral">&quot;state is now [&quot;</span> &lt;&lt; sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l01658" name="l01658"></a><span class="lineno"> 1658</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l01659" name="l01659"></a><span class="lineno"> 1659</span>  }</div>
-<div class="line"><a id="l01660" name="l01660"></a><span class="lineno"> 1660</span> </div>
-<div class="line"><a id="l01661" name="l01661"></a><span class="lineno"> 1661</span>  <span class="comment">// Check explicit pre-condition.</span></div>
-<div class="line"><a id="l01662" name="l01662"></a><span class="lineno"> 1662</span>  assert(!pending_acks.empty());</div>
-<div class="line"><a id="l01663" name="l01663"></a><span class="lineno"> 1663</span> </div>
-<div class="line"><a id="l01664" name="l01664"></a><span class="lineno"> 1664</span>  <span class="comment">/* Deal with any accumulated acknowledgments.  Naively, we&#39;d simply call async_low_lvl_ack_send()</span></div>
-<div class="line"><a id="l01665" name="l01665"></a><span class="lineno"> 1665</span><span class="comment">   * here, which would take pending_acks and bundle them up into as few as possible ACK</span></div>
-<div class="line"><a id="l01666" name="l01666"></a><span class="lineno"> 1666</span><span class="comment">   * packets and send them off.</span></div>
-<div class="line"><a id="l01667" name="l01667"></a><span class="lineno"> 1667</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01668" name="l01668"></a><span class="lineno"> 1668</span><span class="comment">   * However, we potentially instead use delayed ACKing as in typical TCP implementations (based on</span></div>
-<div class="line"><a id="l01669" name="l01669"></a><span class="lineno"> 1669</span><span class="comment">   * various standard RFCs).  The idea is that a few DATA packets have come in around the same time,</span></div>
-<div class="line"><a id="l01670" name="l01670"></a><span class="lineno"> 1670</span><span class="comment">   * but not close enough to be handled in one receive handler.  So upon detecting the first DATA</span></div>
-<div class="line"><a id="l01671" name="l01671"></a><span class="lineno"> 1671</span><span class="comment">   * packet in the steady state, start a timer; until it fires accumulate more packets in</span></div>
-<div class="line"><a id="l01672" name="l01672"></a><span class="lineno"> 1672</span><span class="comment">   * pending_acks; and when it fires finally assemble and flush (send) the ACK(s).  Something else may trigger</span></div>
-<div class="line"><a id="l01673" name="l01673"></a><span class="lineno"> 1673</span><span class="comment">   * the flushing of the ACK(s) ahead of this timer or even immediately.</span></div>
-<div class="line"><a id="l01674" name="l01674"></a><span class="lineno"> 1674</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01675" name="l01675"></a><span class="lineno"> 1675</span><span class="comment">   * These are situations where we must short-circuit the timer and send the ACK(s)</span></div>
-<div class="line"><a id="l01676" name="l01676"></a><span class="lineno"> 1676</span><span class="comment">   * immediately:</span></div>
-<div class="line"><a id="l01677" name="l01677"></a><span class="lineno"> 1677</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01678" name="l01678"></a><span class="lineno"> 1678</span><span class="comment">   *   1. From TCP (RFC 5681-4.2), which says that an ACK should be generated for at</span></div>
-<div class="line"><a id="l01679" name="l01679"></a><span class="lineno"> 1679</span><span class="comment">   *      least every second full-sized (data size = MSS) incoming data segment.  The reasoning is</span></div>
-<div class="line"><a id="l01680" name="l01680"></a><span class="lineno"> 1680</span><span class="comment">   *      two-fold: causing bursty sending by the receiver of the ACKs; and slowing down slow start</span></div>
-<div class="line"><a id="l01681" name="l01681"></a><span class="lineno"> 1681</span><span class="comment">   *      in Reno (and others) congestion control.  The latter is not really a problem for us (since</span></div>
-<div class="line"><a id="l01682" name="l01682"></a><span class="lineno"> 1682</span><span class="comment">   *      ACKs are not cumulative but selective and handled as such by our congestion control logic);</span></div>
-<div class="line"><a id="l01683" name="l01683"></a><span class="lineno"> 1683</span><span class="comment">   *      but the former is definitely an easily demonstrable issue. @todo This paragraph is difficult</span></div>
-<div class="line"><a id="l01684" name="l01684"></a><span class="lineno"> 1684</span><span class="comment">   *      to understand right now.  There might be 1 or more unintentional meaning inversions, wherein</span></div>
-<div class="line"><a id="l01685" name="l01685"></a><span class="lineno"> 1685</span><span class="comment">   *      I mean to say X is good, but instead say X is bad, or vice vera, or at least it&#39;s unclear.  Research;</span></div>
-<div class="line"><a id="l01686" name="l01686"></a><span class="lineno"> 1686</span><span class="comment">   *      rephrase.</span></div>
-<div class="line"><a id="l01687" name="l01687"></a><span class="lineno"> 1687</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01688" name="l01688"></a><span class="lineno"> 1688</span><span class="comment">   *   2. Also from TCP (RFC 5681-3.2), which says that an ACK should be</span></div>
-<div class="line"><a id="l01689" name="l01689"></a><span class="lineno"> 1689</span><span class="comment">   *      immediately generated upon detecting an out-of-order data segment.  This is to inform</span></div>
-<div class="line"><a id="l01690" name="l01690"></a><span class="lineno"> 1690</span><span class="comment">   *      congestion control of any loss event as soon as possible (Fast Recovery algorithm).</span></div>
-<div class="line"><a id="l01691" name="l01691"></a><span class="lineno"> 1691</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01692" name="l01692"></a><span class="lineno"> 1692</span><span class="comment">   * Note that TCP RFCs don&#39;t account for the implementation detail that several packets can be</span></div>
-<div class="line"><a id="l01693" name="l01693"></a><span class="lineno"> 1693</span><span class="comment">   * received &quot;simultaneously&quot; (in one handler in our case), nor for selective ACKs (in this</span></div>
-<div class="line"><a id="l01694" name="l01694"></a><span class="lineno"> 1694</span><span class="comment">   * context), so when they say we must send an ACK for every 2 incoming segments at least, we do</span></div>
-<div class="line"><a id="l01695" name="l01695"></a><span class="lineno"> 1695</span><span class="comment">   * not take this literally.  Instead, we just say that if (here, after a full receive handler has</span></div>
-<div class="line"><a id="l01696" name="l01696"></a><span class="lineno"> 1696</span><span class="comment">   * run) there are at least 2 full blocks&#39; worth of pending acknowledgments (there could be many</span></div>
-<div class="line"><a id="l01697" name="l01697"></a><span class="lineno"> 1697</span><span class="comment">   * more in theory) and/or there&#39;s an out-of-order DATA packet, then we send immediate ACK(s), thus</span></div>
-<div class="line"><a id="l01698" name="l01698"></a><span class="lineno"> 1698</span><span class="comment">   * following the spirit of the rules in the RFC.  The spirit of the rule is to short-circuit the</span></div>
-<div class="line"><a id="l01699" name="l01699"></a><span class="lineno"> 1699</span><span class="comment">   * timer the moment at least 2 full packets can be acknowledged.</span></div>
-<div class="line"><a id="l01700" name="l01700"></a><span class="lineno"> 1700</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01701" name="l01701"></a><span class="lineno"> 1701</span><span class="comment">   * We detect both of these situations below and act accordingly.  We also start the delayed ACK</span></div>
-<div class="line"><a id="l01702" name="l01702"></a><span class="lineno"> 1702</span><span class="comment">   * timer, if necessary, otherwise.  Oh, and there&#39;s a mode to disable delayed ACKs.</span></div>
-<div class="line"><a id="l01703" name="l01703"></a><span class="lineno"> 1703</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01704" name="l01704"></a><span class="lineno"> 1704</span><span class="comment">   * @todo We may also force immediate ACKing during graceful shutdown.  Revisit when graceful</span></div>
-<div class="line"><a id="l01705" name="l01705"></a><span class="lineno"> 1705</span><span class="comment">   * shutdown is implemented.... */</span></div>
-<div class="line"><a id="l01706" name="l01706"></a><span class="lineno"> 1706</span> </div>
-<div class="line"><a id="l01707" name="l01707"></a><span class="lineno"> 1707</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> delayed_ack_timer_period = sock-&gt;opt(sock-&gt;m_opts.m_st_delayed_ack_timer_period);</div>
-<div class="line"><a id="l01708" name="l01708"></a><span class="lineno"> 1708</span> </div>
-<div class="line"><a id="l01709" name="l01709"></a><span class="lineno"> 1709</span>  <span class="keywordtype">bool</span> force_ack = delayed_ack_timer_period == Fine_duration::zero(); <span class="comment">// Delayed ACKs disabled.</span></div>
-<div class="line"><a id="l01710" name="l01710"></a><span class="lineno"> 1710</span> </div>
-<div class="line"><a id="l01711" name="l01711"></a><span class="lineno"> 1711</span>  <span class="keywordflow">if</span> (force_ack)</div>
-<div class="line"><a id="l01712" name="l01712"></a><span class="lineno"> 1712</span>  {</div>
-<div class="line"><a id="l01713" name="l01713"></a><span class="lineno"> 1713</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a></div>
-<div class="line"><a id="l01714" name="l01714"></a><span class="lineno"> 1714</span>      (<span class="stringliteral">&quot;Delayed [ACK] feature disabled on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]; forcing immediate [ACK].  &quot;</span></div>
-<div class="line"><a id="l01715" name="l01715"></a><span class="lineno"> 1715</span>       <span class="stringliteral">&quot;Receive window state: [&quot;</span> &lt;&lt; sock-&gt;m_rcv_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; sock-&gt;m_rcv_next_seq_num &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l01716" name="l01716"></a><span class="lineno"> 1716</span>       <span class="stringliteral">&quot;| &quot;</span> &lt;&lt; sock-&gt;m_rcv_packets_with_gaps.size() &lt;&lt; <span class="stringliteral">&quot;:{...}.&quot;</span>);</div>
-<div class="line"><a id="l01717" name="l01717"></a><span class="lineno"> 1717</span>  }</div>
-<div class="line"><a id="l01718" name="l01718"></a><span class="lineno"> 1718</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!sock-&gt;m_rcv_packets_with_gaps.empty())</div>
-<div class="line"><a id="l01719" name="l01719"></a><span class="lineno"> 1719</span>  {</div>
-<div class="line"><a id="l01720" name="l01720"></a><span class="lineno"> 1720</span>    <span class="comment">/* Scan to see if there was an out-of-order DATA packet.  That is to say, have we received a</span></div>
-<div class="line"><a id="l01721" name="l01721"></a><span class="lineno"> 1721</span><span class="comment">     * DATA packet -- i.e., have we queued a pending acknowledgment in this receive handler -- that</span></div>
-<div class="line"><a id="l01722" name="l01722"></a><span class="lineno"> 1722</span><span class="comment">     * follows at least one unreceived packet in the sequence number space.</span></div>
-<div class="line"><a id="l01723" name="l01723"></a><span class="lineno"> 1723</span><span class="comment">     *</span></div>
-<div class="line"><a id="l01724" name="l01724"></a><span class="lineno"> 1724</span><span class="comment">     * There is a gap in the received sequence number space, so this is potentially possible.  Scan</span></div>
-<div class="line"><a id="l01725" name="l01725"></a><span class="lineno"> 1725</span><span class="comment">     * only the DATA packets (acknowledgments) accumulated in THIS handler (since previous ones</span></div>
-<div class="line"><a id="l01726" name="l01726"></a><span class="lineno"> 1726</span><span class="comment">     * have already been checked, and unreceived gaps can&#39;t just appear out of nowhere later).  If</span></div>
-<div class="line"><a id="l01727" name="l01727"></a><span class="lineno"> 1727</span><span class="comment">     * any is past the first gap, it qualifies.  (The reverse is true.  If it&#39;s past any gap, it&#39;s</span></div>
-<div class="line"><a id="l01728" name="l01728"></a><span class="lineno"> 1728</span><span class="comment">     * past the first gap.) */</span></div>
-<div class="line"><a id="l01729" name="l01729"></a><span class="lineno"> 1729</span>    <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">Peer_socket::Individual_ack::Const_ptr</a> ack;</div>
-<div class="line"><a id="l01730" name="l01730"></a><span class="lineno"> 1730</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> ack_idx = sock-&gt;m_rcv_pending_acks_size_at_recv_handler_start;</div>
-<div class="line"><a id="l01731" name="l01731"></a><span class="lineno"> 1731</span>         ack_idx != pending_acks.size(); ++ack_idx)</div>
-<div class="line"><a id="l01732" name="l01732"></a><span class="lineno"> 1732</span>    {</div>
-<div class="line"><a id="l01733" name="l01733"></a><span class="lineno"> 1733</span>      ack = pending_acks[ack_idx];</div>
-<div class="line"><a id="l01734" name="l01734"></a><span class="lineno"> 1734</span>      <span class="keywordflow">if</span> (ack-&gt;m_seq_num &gt; sock-&gt;m_rcv_next_seq_num)</div>
-<div class="line"><a id="l01735" name="l01735"></a><span class="lineno"> 1735</span>      {</div>
-<div class="line"><a id="l01736" name="l01736"></a><span class="lineno"> 1736</span>        force_ack = <span class="keyword">true</span>;</div>
-<div class="line"><a id="l01737" name="l01737"></a><span class="lineno"> 1737</span>        <span class="keywordflow">break</span>;</div>
-<div class="line"><a id="l01738" name="l01738"></a><span class="lineno"> 1738</span>      }</div>
-<div class="line"><a id="l01739" name="l01739"></a><span class="lineno"> 1739</span>    }</div>
-<div class="line"><a id="l01740" name="l01740"></a><span class="lineno"> 1740</span> </div>
-<div class="line"><a id="l01741" name="l01741"></a><span class="lineno"> 1741</span>    <span class="keywordflow">if</span> (force_ack)</div>
-<div class="line"><a id="l01742" name="l01742"></a><span class="lineno"> 1742</span>    {</div>
-<div class="line"><a id="l01743" name="l01743"></a><span class="lineno"> 1743</span>      <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a></div>
-<div class="line"><a id="l01744" name="l01744"></a><span class="lineno"> 1744</span>        (<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l01745" name="l01745"></a><span class="lineno"> 1745</span>         <span class="stringliteral">&quot;received out-of-order packet [&quot;</span> &lt;&lt; ack-&gt;m_seq_num &lt;&lt; <span class="stringliteral">&quot;, size &quot;</span> &lt;&lt; ack-&gt;m_data_size &lt;&lt; <span class="stringliteral">&quot;, &quot;</span></div>
-<div class="line"><a id="l01746" name="l01746"></a><span class="lineno"> 1746</span>         <span class="stringliteral">&quot;rexmit &quot;</span> &lt;&lt; ack-&gt;m_rexmit_id &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l01747" name="l01747"></a><span class="lineno"> 1747</span>         <span class="stringliteral">&quot;forcing immediate [ACK].  &quot;</span></div>
-<div class="line"><a id="l01748" name="l01748"></a><span class="lineno"> 1748</span>         <span class="stringliteral">&quot;Receive window state: [&quot;</span> &lt;&lt; sock-&gt;m_rcv_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; sock-&gt;m_rcv_next_seq_num &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l01749" name="l01749"></a><span class="lineno"> 1749</span>         <span class="stringliteral">&quot;| &quot;</span> &lt;&lt; sock-&gt;m_rcv_packets_with_gaps.size() &lt;&lt; <span class="stringliteral">&quot;:{...}.&quot;</span>);</div>
-<div class="line"><a id="l01750" name="l01750"></a><span class="lineno"> 1750</span>    }</div>
-<div class="line"><a id="l01751" name="l01751"></a><span class="lineno"> 1751</span>  }</div>
-<div class="line"><a id="l01752" name="l01752"></a><span class="lineno"> 1752</span>  <span class="keywordflow">if</span> (!force_ack)</div>
-<div class="line"><a id="l01753" name="l01753"></a><span class="lineno"> 1753</span>  {</div>
-<div class="line"><a id="l01754" name="l01754"></a><span class="lineno"> 1754</span>    <span class="comment">// No out-of-order stuff.  See if there are at least N * max-block-size bytes pending to be acknowledged.</span></div>
-<div class="line"><a id="l01755" name="l01755"></a><span class="lineno"> 1755</span> </div>
-<div class="line"><a id="l01756" name="l01756"></a><span class="lineno"> 1756</span>    <span class="keyword">const</span> <span class="keywordtype">size_t</span> limit <span class="comment">// Default 2.</span></div>
-<div class="line"><a id="l01757" name="l01757"></a><span class="lineno"> 1757</span>      = sock-&gt;opt(sock-&gt;m_opts.m_st_max_full_blocks_before_ack_send) * sock-&gt;max_block_size();</div>
-<div class="line"><a id="l01758" name="l01758"></a><span class="lineno"> 1758</span>    <span class="keywordtype">size_t</span> bytes = 0;</div>
-<div class="line"><a id="l01759" name="l01759"></a><span class="lineno"> 1759</span>    <span class="keywordflow">for</span> (<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">Peer_socket::Individual_ack::Const_ptr</a> ack : pending_acks)</div>
-<div class="line"><a id="l01760" name="l01760"></a><span class="lineno"> 1760</span>    {</div>
-<div class="line"><a id="l01761" name="l01761"></a><span class="lineno"> 1761</span>      bytes += ack-&gt;m_data_size;</div>
-<div class="line"><a id="l01762" name="l01762"></a><span class="lineno"> 1762</span>      <span class="keywordflow">if</span> (bytes &gt;= limit)</div>
-<div class="line"><a id="l01763" name="l01763"></a><span class="lineno"> 1763</span>      {</div>
-<div class="line"><a id="l01764" name="l01764"></a><span class="lineno"> 1764</span>        force_ack = <span class="keyword">true</span>;</div>
-<div class="line"><a id="l01765" name="l01765"></a><span class="lineno"> 1765</span>        <span class="keywordflow">break</span>;</div>
-<div class="line"><a id="l01766" name="l01766"></a><span class="lineno"> 1766</span>      }</div>
-<div class="line"><a id="l01767" name="l01767"></a><span class="lineno"> 1767</span>    }</div>
-<div class="line"><a id="l01768" name="l01768"></a><span class="lineno"> 1768</span> </div>
-<div class="line"><a id="l01769" name="l01769"></a><span class="lineno"> 1769</span>    <span class="keywordflow">if</span> (force_ack)</div>
-<div class="line"><a id="l01770" name="l01770"></a><span class="lineno"> 1770</span>    {</div>
-<div class="line"><a id="l01771" name="l01771"></a><span class="lineno"> 1771</span>      <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l01772" name="l01772"></a><span class="lineno"> 1772</span>                     <span class="stringliteral">&quot;accumulated at least [&quot;</span> &lt;&lt; limit &lt;&lt; <span class="stringliteral">&quot;] bytes to acknowledge; &quot;</span></div>
-<div class="line"><a id="l01773" name="l01773"></a><span class="lineno"> 1773</span>                     <span class="stringliteral">&quot;forcing immediate [ACK].&quot;</span>);</div>
-<div class="line"><a id="l01774" name="l01774"></a><span class="lineno"> 1774</span>    }</div>
-<div class="line"><a id="l01775" name="l01775"></a><span class="lineno"> 1775</span>  }</div>
-<div class="line"><a id="l01776" name="l01776"></a><span class="lineno"> 1776</span> </div>
-<div class="line"><a id="l01777" name="l01777"></a><span class="lineno"> 1777</span>  <span class="comment">// OK; force_ack is set finally.</span></div>
-<div class="line"><a id="l01778" name="l01778"></a><span class="lineno"> 1778</span> </div>
-<div class="line"><a id="l01779" name="l01779"></a><span class="lineno"> 1779</span>  <span class="keywordflow">if</span> (force_ack)</div>
-<div class="line"><a id="l01780" name="l01780"></a><span class="lineno"> 1780</span>  {</div>
-<div class="line"><a id="l01781" name="l01781"></a><span class="lineno"> 1781</span>    <span class="comment">/* Yep, must send ACK(s) now.  There are two possibilities.  One, a delayed ACK timer may</span></div>
-<div class="line"><a id="l01782" name="l01782"></a><span class="lineno"> 1782</span><span class="comment">     * already be running.  If so, we should cancel it and send immediately.  If the cancel fails</span></div>
-<div class="line"><a id="l01783" name="l01783"></a><span class="lineno"> 1783</span><span class="comment">     * (returns 0 tasks canceled), then it was already queued to fire very soon, so we should</span></div>
-<div class="line"><a id="l01784" name="l01784"></a><span class="lineno"> 1784</span><span class="comment">     * just let the ACKing happen that way instead of sending immediately.</span></div>
-<div class="line"><a id="l01785" name="l01785"></a><span class="lineno"> 1785</span><span class="comment">     *</span></div>
-<div class="line"><a id="l01786" name="l01786"></a><span class="lineno"> 1786</span><span class="comment">     * Two, a timer is not running, so we shouldn&#39;t cancel and should just send immediately.</span></div>
-<div class="line"><a id="l01787" name="l01787"></a><span class="lineno"> 1787</span><span class="comment">     *</span></div>
-<div class="line"><a id="l01788" name="l01788"></a><span class="lineno"> 1788</span><span class="comment">     * How to determine if timer is currently running?  If</span></div>
-<div class="line"><a id="l01789" name="l01789"></a><span class="lineno"> 1789</span><span class="comment">     * m_rcv_pending_acks_size_at_recv_handler_start == 0, then the timer was either never scheduled</span></div>
-<div class="line"><a id="l01790" name="l01790"></a><span class="lineno"> 1790</span><span class="comment">     * (only scheduled when pending_acks.empty()) or was triggered and handled before the current</span></div>
-<div class="line"><a id="l01791" name="l01791"></a><span class="lineno"> 1791</span><span class="comment">     * handler; therefore it is not running.  Otherwise, there were pending acks to send, yet they</span></div>
-<div class="line"><a id="l01792" name="l01792"></a><span class="lineno"> 1792</span><span class="comment">     * were not sent by the end of the last handler, which means the timer must be running.</span></div>
+<div class="line"><a id="l01594" name="l01594"></a><span class="lineno"> 1594</span>  <span class="keyword">static_assert</span>(std::is_aggregate_v&lt;Peer_socket::Individual_ack&gt;,</div>
+<div class="line"><a id="l01595" name="l01595"></a><span class="lineno"> 1595</span>                <span class="stringliteral">&quot;We want it to be direct-initializable.&quot;</span>);</div>
+<div class="line"><a id="l01596" name="l01596"></a><span class="lineno"> 1596</span>  <span class="keyword">static_assert</span>((!std::is_copy_constructible_v&lt;Peer_socket::Individual_ack&gt;)</div>
+<div class="line"><a id="l01597" name="l01597"></a><span class="lineno"> 1597</span>                  &amp;&amp; (!std::is_copy_assignable_v&lt;Peer_socket::Individual_ack&gt;),</div>
+<div class="line"><a id="l01598" name="l01598"></a><span class="lineno"> 1598</span>                <span class="stringliteral">&quot;We want it to be noncopyable but rather passed-around via its ::Ptr.&quot;</span>);</div>
+<div class="line"><a id="l01599" name="l01599"></a><span class="lineno"> 1599</span> </div>
+<div class="line"><a id="l01600" name="l01600"></a><span class="lineno"> 1600</span>  <span class="comment">/* Just the starting sequence number sufficient to identify a single packet.  The time point saved</span></div>
+<div class="line"><a id="l01601" name="l01601"></a><span class="lineno"> 1601</span><span class="comment">   * here is subtracted from time_now() at ACK send time, to compute the artificial delay introduced</span></div>
+<div class="line"><a id="l01602" name="l01602"></a><span class="lineno"> 1602</span><span class="comment">   * by ACK delaying (explained just below).  This helps other side calculate a more accurate RTT by</span></div>
+<div class="line"><a id="l01603" name="l01603"></a><span class="lineno"> 1603</span><span class="comment">   * substracting the ACK delay from its RTT measurement. */</span></div>
+<div class="line"><a id="l01604" name="l01604"></a><span class="lineno"> 1604</span>  sock-&gt;m_rcv_pending_acks.push_back</div>
+<div class="line"><a id="l01605" name="l01605"></a><span class="lineno"> 1605</span>    (<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3">Peer_socket::Individual_ack::Ptr</a></div>
+<div class="line"><a id="l01606" name="l01606"></a><span class="lineno"> 1606</span>       (<span class="keyword">new</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">Peer_socket::Individual_ack</a>{ seq_num, rexmit_id, Fine_clock::now(), data_size }));</div>
+<div class="line"><a id="l01607" name="l01607"></a><span class="lineno"> 1607</span> </div>
+<div class="line"><a id="l01608" name="l01608"></a><span class="lineno"> 1608</span>  <span class="comment">/* m_rcv_pending_acks now stores at least one packet to acknowledge.  We can acknowledge it</span></div>
+<div class="line"><a id="l01609" name="l01609"></a><span class="lineno"> 1609</span><span class="comment">   * immediately (modulo UDP layer availability of course).  However, suppose there is a fast stream</span></div>
+<div class="line"><a id="l01610" name="l01610"></a><span class="lineno"> 1610</span><span class="comment">   * of packets coming in, such that several DATA packets were read in within one</span></div>
+<div class="line"><a id="l01611" name="l01611"></a><span class="lineno"> 1611</span><span class="comment">   * low_lvl_recv_and_handle() call.  Then each DATA packet will result in one ACK packet.</span></div>
+<div class="line"><a id="l01612" name="l01612"></a><span class="lineno"> 1612</span><span class="comment">   * This introduces a ton of overhead, as the header is quite large given that the payload is just</span></div>
+<div class="line"><a id="l01613" name="l01613"></a><span class="lineno"> 1613</span><span class="comment">   * a Sequence_number.  Instead we would want to pack all the DATA packets&#39; acknowledgments into</span></div>
+<div class="line"><a id="l01614" name="l01614"></a><span class="lineno"> 1614</span><span class="comment">   * one ACK packet (unless it overflows, in which case create more ACK packets as needed).  So we</span></div>
+<div class="line"><a id="l01615" name="l01615"></a><span class="lineno"> 1615</span><span class="comment">   * only accumulate the individual acknowledgments here; we will possibly send the actual ACK(s) in</span></div>
+<div class="line"><a id="l01616" name="l01616"></a><span class="lineno"> 1616</span><span class="comment">   * perform_accumulated_on_recv_tasks(), which runs at the end of low_lvl_recv_and_handle() (or its</span></div>
+<div class="line"><a id="l01617" name="l01617"></a><span class="lineno"> 1617</span><span class="comment">   * bro, the async part of async_wait_latency_then_handle_incoming()).</span></div>
+<div class="line"><a id="l01618" name="l01618"></a><span class="lineno"> 1618</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01619" name="l01619"></a><span class="lineno"> 1619</span><span class="comment">   * Caveat: The above is rock-solid if the different DATA packets being acked were contiguous to</span></div>
+<div class="line"><a id="l01620" name="l01620"></a><span class="lineno"> 1620</span><span class="comment">   * each other chronologically.  What if there is another type of packet between some two of these</span></div>
+<div class="line"><a id="l01621" name="l01621"></a><span class="lineno"> 1621</span><span class="comment">   * DATAs?  Well, it depends on what it is.  Ignoring the misbehaving/duplicate/whatever packets</span></div>
+<div class="line"><a id="l01622" name="l01622"></a><span class="lineno"> 1622</span><span class="comment">   * (SYN, for example) -- which will just be discarded basically -- let&#39;s consider the</span></div>
+<div class="line"><a id="l01623" name="l01623"></a><span class="lineno"> 1623</span><span class="comment">   * possibilities.  If the packet is ACK, then it is irrelevant; NetFlow (like TCP) is full-duplex</span></div>
+<div class="line"><a id="l01624" name="l01624"></a><span class="lineno"> 1624</span><span class="comment">   * (actually more so, since there&#39;s no DATA+ACK piggy-backing), therefore the micro-ordering of</span></div>
+<div class="line"><a id="l01625" name="l01625"></a><span class="lineno"> 1625</span><span class="comment">   * traffic in opposite directions is irrelevant.  If the packet is RST, then that means the socket</span></div>
+<div class="line"><a id="l01626" name="l01626"></a><span class="lineno"> 1626</span><span class="comment">   * will get closed (no longer ESTABLISHED) before we get a chance to send any of the individual</span></div>
+<div class="line"><a id="l01627" name="l01627"></a><span class="lineno"> 1627</span><span class="comment">   * acknowledgments.  However, that is more or less OK; if the other side sent RST, then they won&#39;t</span></div>
+<div class="line"><a id="l01628" name="l01628"></a><span class="lineno"> 1628</span><span class="comment">   * accept any ACKs we may send them anyway.  The only other possibility has to with graceful close,</span></div>
+<div class="line"><a id="l01629" name="l01629"></a><span class="lineno"> 1629</span><span class="comment">   * but that is not yet implemented.</span></div>
+<div class="line"><a id="l01630" name="l01630"></a><span class="lineno"> 1630</span><span class="comment">   * @todo Revisit this when graceful close is implemented.  (Preliminary idea: force immediate ACK</span></div>
+<div class="line"><a id="l01631" name="l01631"></a><span class="lineno"> 1631</span><span class="comment">   * handling when FIN/etc. detected?  Or something.) */</span></div>
+<div class="line"><a id="l01632" name="l01632"></a><span class="lineno"> 1632</span> </div>
+<div class="line"><a id="l01633" name="l01633"></a><span class="lineno"> 1633</span>  <span class="keywordflow">if</span> (m_socks_with_accumulated_pending_acks.insert(sock).second)</div>
+<div class="line"><a id="l01634" name="l01634"></a><span class="lineno"> 1634</span>  {</div>
+<div class="line"><a id="l01635" name="l01635"></a><span class="lineno"> 1635</span>    <span class="comment">/* First acknowledgment to be accumulated in this handler (low_lvl_recv_and_handle() or</span></div>
+<div class="line"><a id="l01636" name="l01636"></a><span class="lineno"> 1636</span><span class="comment">     * async part of async_wait_latency_then_handle_incoming()).  So mark down whether at that time there were</span></div>
+<div class="line"><a id="l01637" name="l01637"></a><span class="lineno"> 1637</span><span class="comment">     * already timer-delayed acknowledgments pending (and how many).  See</span></div>
+<div class="line"><a id="l01638" name="l01638"></a><span class="lineno"> 1638</span><span class="comment">     * sock_perform_accumulated_on_recv_tasks() for details on delayed ACKs. */</span></div>
+<div class="line"><a id="l01639" name="l01639"></a><span class="lineno"> 1639</span>    sock-&gt;m_rcv_pending_acks_size_at_recv_handler_start = acks_pending_before_this;</div>
+<div class="line"><a id="l01640" name="l01640"></a><span class="lineno"> 1640</span>  }</div>
+<div class="line"><a id="l01641" name="l01641"></a><span class="lineno"> 1641</span>  <span class="comment">// else already had registered pending acknowledgment in this handler.</span></div>
+<div class="line"><a id="l01642" name="l01642"></a><span class="lineno"> 1642</span>} <span class="comment">// Node::async_acknowledge_packet()</span></div>
+<div class="line"><a id="l01643" name="l01643"></a><span class="lineno"> 1643</span> </div>
+<div class="line"><a id="l01644" name="l01644"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a45583714bc147300158f074ecacce0fd"> 1644</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a45583714bc147300158f074ecacce0fd">Node::handle_accumulated_pending_acks</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
+<div class="line"><a id="l01645" name="l01645"></a><span class="lineno"> 1645</span>{</div>
+<div class="line"><a id="l01646" name="l01646"></a><span class="lineno"> 1646</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
+<div class="line"><a id="l01647" name="l01647"></a><span class="lineno"> 1647</span>  <span class="keyword">using </span>boost::chrono::microseconds;</div>
+<div class="line"><a id="l01648" name="l01648"></a><span class="lineno"> 1648</span>  <span class="keyword">using </span>boost::chrono::duration_cast;</div>
+<div class="line"><a id="l01649" name="l01649"></a><span class="lineno"> 1649</span>  <span class="keyword">using </span>boost::chrono::round;</div>
+<div class="line"><a id="l01650" name="l01650"></a><span class="lineno"> 1650</span>  <span class="keyword">using </span>std::vector;</div>
+<div class="line"><a id="l01651" name="l01651"></a><span class="lineno"> 1651</span> </div>
+<div class="line"><a id="l01652" name="l01652"></a><span class="lineno"> 1652</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l01653" name="l01653"></a><span class="lineno"> 1653</span> </div>
+<div class="line"><a id="l01654" name="l01654"></a><span class="lineno"> 1654</span>  <span class="comment">// For background see Node::perform_accumulated_on_recv_tasks().</span></div>
+<div class="line"><a id="l01655" name="l01655"></a><span class="lineno"> 1655</span> </div>
+<div class="line"><a id="l01656" name="l01656"></a><span class="lineno"> 1656</span>  <span class="comment">// For brevity and speed:</span></div>
+<div class="line"><a id="l01657" name="l01657"></a><span class="lineno"> 1657</span>  vector&lt;Peer_socket::Individual_ack::Ptr&gt;&amp; pending_acks = sock-&gt;m_rcv_pending_acks;</div>
+<div class="line"><a id="l01658" name="l01658"></a><span class="lineno"> 1658</span> </div>
+<div class="line"><a id="l01659" name="l01659"></a><span class="lineno"> 1659</span>  <span class="keywordflow">if</span> (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>)</div>
+<div class="line"><a id="l01660" name="l01660"></a><span class="lineno"> 1660</span>  {</div>
+<div class="line"><a id="l01661" name="l01661"></a><span class="lineno"> 1661</span>    <span class="comment">// For example, we got DATA and then RST on the same socket almost simultaneously.</span></div>
+<div class="line"><a id="l01662" name="l01662"></a><span class="lineno"> 1662</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Was about to perform accumulated acknowledgment tasks on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] but skipping because &quot;</span></div>
+<div class="line"><a id="l01663" name="l01663"></a><span class="lineno"> 1663</span>                   <span class="stringliteral">&quot;state is now [&quot;</span> &lt;&lt; sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l01664" name="l01664"></a><span class="lineno"> 1664</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l01665" name="l01665"></a><span class="lineno"> 1665</span>  }</div>
+<div class="line"><a id="l01666" name="l01666"></a><span class="lineno"> 1666</span> </div>
+<div class="line"><a id="l01667" name="l01667"></a><span class="lineno"> 1667</span>  <span class="comment">// Check explicit pre-condition.</span></div>
+<div class="line"><a id="l01668" name="l01668"></a><span class="lineno"> 1668</span>  assert(!pending_acks.empty());</div>
+<div class="line"><a id="l01669" name="l01669"></a><span class="lineno"> 1669</span> </div>
+<div class="line"><a id="l01670" name="l01670"></a><span class="lineno"> 1670</span>  <span class="comment">/* Deal with any accumulated acknowledgments.  Naively, we&#39;d simply call async_low_lvl_ack_send()</span></div>
+<div class="line"><a id="l01671" name="l01671"></a><span class="lineno"> 1671</span><span class="comment">   * here, which would take pending_acks and bundle them up into as few as possible ACK</span></div>
+<div class="line"><a id="l01672" name="l01672"></a><span class="lineno"> 1672</span><span class="comment">   * packets and send them off.</span></div>
+<div class="line"><a id="l01673" name="l01673"></a><span class="lineno"> 1673</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01674" name="l01674"></a><span class="lineno"> 1674</span><span class="comment">   * However, we potentially instead use delayed ACKing as in typical TCP implementations (based on</span></div>
+<div class="line"><a id="l01675" name="l01675"></a><span class="lineno"> 1675</span><span class="comment">   * various standard RFCs).  The idea is that a few DATA packets have come in around the same time,</span></div>
+<div class="line"><a id="l01676" name="l01676"></a><span class="lineno"> 1676</span><span class="comment">   * but not close enough to be handled in one receive handler.  So upon detecting the first DATA</span></div>
+<div class="line"><a id="l01677" name="l01677"></a><span class="lineno"> 1677</span><span class="comment">   * packet in the steady state, start a timer; until it fires accumulate more packets in</span></div>
+<div class="line"><a id="l01678" name="l01678"></a><span class="lineno"> 1678</span><span class="comment">   * pending_acks; and when it fires finally assemble and flush (send) the ACK(s).  Something else may trigger</span></div>
+<div class="line"><a id="l01679" name="l01679"></a><span class="lineno"> 1679</span><span class="comment">   * the flushing of the ACK(s) ahead of this timer or even immediately.</span></div>
+<div class="line"><a id="l01680" name="l01680"></a><span class="lineno"> 1680</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01681" name="l01681"></a><span class="lineno"> 1681</span><span class="comment">   * These are situations where we must short-circuit the timer and send the ACK(s)</span></div>
+<div class="line"><a id="l01682" name="l01682"></a><span class="lineno"> 1682</span><span class="comment">   * immediately:</span></div>
+<div class="line"><a id="l01683" name="l01683"></a><span class="lineno"> 1683</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01684" name="l01684"></a><span class="lineno"> 1684</span><span class="comment">   *   1. From TCP (RFC 5681-4.2), which says that an ACK should be generated for at</span></div>
+<div class="line"><a id="l01685" name="l01685"></a><span class="lineno"> 1685</span><span class="comment">   *      least every second full-sized (data size = MSS) incoming data segment.  The reasoning is</span></div>
+<div class="line"><a id="l01686" name="l01686"></a><span class="lineno"> 1686</span><span class="comment">   *      two-fold: causing bursty sending by the receiver of the ACKs; and slowing down slow start</span></div>
+<div class="line"><a id="l01687" name="l01687"></a><span class="lineno"> 1687</span><span class="comment">   *      in Reno (and others) congestion control.  The latter is not really a problem for us (since</span></div>
+<div class="line"><a id="l01688" name="l01688"></a><span class="lineno"> 1688</span><span class="comment">   *      ACKs are not cumulative but selective and handled as such by our congestion control logic);</span></div>
+<div class="line"><a id="l01689" name="l01689"></a><span class="lineno"> 1689</span><span class="comment">   *      but the former is definitely an easily demonstrable issue. @todo This paragraph is difficult</span></div>
+<div class="line"><a id="l01690" name="l01690"></a><span class="lineno"> 1690</span><span class="comment">   *      to understand right now.  There might be 1 or more unintentional meaning inversions, wherein</span></div>
+<div class="line"><a id="l01691" name="l01691"></a><span class="lineno"> 1691</span><span class="comment">   *      I mean to say X is good, but instead say X is bad, or vice vera, or at least it&#39;s unclear.  Research;</span></div>
+<div class="line"><a id="l01692" name="l01692"></a><span class="lineno"> 1692</span><span class="comment">   *      rephrase.</span></div>
+<div class="line"><a id="l01693" name="l01693"></a><span class="lineno"> 1693</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01694" name="l01694"></a><span class="lineno"> 1694</span><span class="comment">   *   2. Also from TCP (RFC 5681-3.2), which says that an ACK should be</span></div>
+<div class="line"><a id="l01695" name="l01695"></a><span class="lineno"> 1695</span><span class="comment">   *      immediately generated upon detecting an out-of-order data segment.  This is to inform</span></div>
+<div class="line"><a id="l01696" name="l01696"></a><span class="lineno"> 1696</span><span class="comment">   *      congestion control of any loss event as soon as possible (Fast Recovery algorithm).</span></div>
+<div class="line"><a id="l01697" name="l01697"></a><span class="lineno"> 1697</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01698" name="l01698"></a><span class="lineno"> 1698</span><span class="comment">   * Note that TCP RFCs don&#39;t account for the implementation detail that several packets can be</span></div>
+<div class="line"><a id="l01699" name="l01699"></a><span class="lineno"> 1699</span><span class="comment">   * received &quot;simultaneously&quot; (in one handler in our case), nor for selective ACKs (in this</span></div>
+<div class="line"><a id="l01700" name="l01700"></a><span class="lineno"> 1700</span><span class="comment">   * context), so when they say we must send an ACK for every 2 incoming segments at least, we do</span></div>
+<div class="line"><a id="l01701" name="l01701"></a><span class="lineno"> 1701</span><span class="comment">   * not take this literally.  Instead, we just say that if (here, after a full receive handler has</span></div>
+<div class="line"><a id="l01702" name="l01702"></a><span class="lineno"> 1702</span><span class="comment">   * run) there are at least 2 full blocks&#39; worth of pending acknowledgments (there could be many</span></div>
+<div class="line"><a id="l01703" name="l01703"></a><span class="lineno"> 1703</span><span class="comment">   * more in theory) and/or there&#39;s an out-of-order DATA packet, then we send immediate ACK(s), thus</span></div>
+<div class="line"><a id="l01704" name="l01704"></a><span class="lineno"> 1704</span><span class="comment">   * following the spirit of the rules in the RFC.  The spirit of the rule is to short-circuit the</span></div>
+<div class="line"><a id="l01705" name="l01705"></a><span class="lineno"> 1705</span><span class="comment">   * timer the moment at least 2 full packets can be acknowledged.</span></div>
+<div class="line"><a id="l01706" name="l01706"></a><span class="lineno"> 1706</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01707" name="l01707"></a><span class="lineno"> 1707</span><span class="comment">   * We detect both of these situations below and act accordingly.  We also start the delayed ACK</span></div>
+<div class="line"><a id="l01708" name="l01708"></a><span class="lineno"> 1708</span><span class="comment">   * timer, if necessary, otherwise.  Oh, and there&#39;s a mode to disable delayed ACKs.</span></div>
+<div class="line"><a id="l01709" name="l01709"></a><span class="lineno"> 1709</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01710" name="l01710"></a><span class="lineno"> 1710</span><span class="comment">   * @todo We may also force immediate ACKing during graceful shutdown.  Revisit when graceful</span></div>
+<div class="line"><a id="l01711" name="l01711"></a><span class="lineno"> 1711</span><span class="comment">   * shutdown is implemented.... */</span></div>
+<div class="line"><a id="l01712" name="l01712"></a><span class="lineno"> 1712</span> </div>
+<div class="line"><a id="l01713" name="l01713"></a><span class="lineno"> 1713</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> delayed_ack_timer_period = sock-&gt;opt(sock-&gt;m_opts.m_st_delayed_ack_timer_period);</div>
+<div class="line"><a id="l01714" name="l01714"></a><span class="lineno"> 1714</span> </div>
+<div class="line"><a id="l01715" name="l01715"></a><span class="lineno"> 1715</span>  <span class="keywordtype">bool</span> force_ack = delayed_ack_timer_period == Fine_duration::zero(); <span class="comment">// Delayed ACKs disabled.</span></div>
+<div class="line"><a id="l01716" name="l01716"></a><span class="lineno"> 1716</span> </div>
+<div class="line"><a id="l01717" name="l01717"></a><span class="lineno"> 1717</span>  <span class="keywordflow">if</span> (force_ack)</div>
+<div class="line"><a id="l01718" name="l01718"></a><span class="lineno"> 1718</span>  {</div>
+<div class="line"><a id="l01719" name="l01719"></a><span class="lineno"> 1719</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a></div>
+<div class="line"><a id="l01720" name="l01720"></a><span class="lineno"> 1720</span>      (<span class="stringliteral">&quot;Delayed [ACK] feature disabled on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]; forcing immediate [ACK].  &quot;</span></div>
+<div class="line"><a id="l01721" name="l01721"></a><span class="lineno"> 1721</span>       <span class="stringliteral">&quot;Receive window state: [&quot;</span> &lt;&lt; sock-&gt;m_rcv_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; sock-&gt;m_rcv_next_seq_num &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l01722" name="l01722"></a><span class="lineno"> 1722</span>       <span class="stringliteral">&quot;| &quot;</span> &lt;&lt; sock-&gt;m_rcv_packets_with_gaps.size() &lt;&lt; <span class="stringliteral">&quot;:{...}.&quot;</span>);</div>
+<div class="line"><a id="l01723" name="l01723"></a><span class="lineno"> 1723</span>  }</div>
+<div class="line"><a id="l01724" name="l01724"></a><span class="lineno"> 1724</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!sock-&gt;m_rcv_packets_with_gaps.empty())</div>
+<div class="line"><a id="l01725" name="l01725"></a><span class="lineno"> 1725</span>  {</div>
+<div class="line"><a id="l01726" name="l01726"></a><span class="lineno"> 1726</span>    <span class="comment">/* Scan to see if there was an out-of-order DATA packet.  That is to say, have we received a</span></div>
+<div class="line"><a id="l01727" name="l01727"></a><span class="lineno"> 1727</span><span class="comment">     * DATA packet -- i.e., have we queued a pending acknowledgment in this receive handler -- that</span></div>
+<div class="line"><a id="l01728" name="l01728"></a><span class="lineno"> 1728</span><span class="comment">     * follows at least one unreceived packet in the sequence number space.</span></div>
+<div class="line"><a id="l01729" name="l01729"></a><span class="lineno"> 1729</span><span class="comment">     *</span></div>
+<div class="line"><a id="l01730" name="l01730"></a><span class="lineno"> 1730</span><span class="comment">     * There is a gap in the received sequence number space, so this is potentially possible.  Scan</span></div>
+<div class="line"><a id="l01731" name="l01731"></a><span class="lineno"> 1731</span><span class="comment">     * only the DATA packets (acknowledgments) accumulated in THIS handler (since previous ones</span></div>
+<div class="line"><a id="l01732" name="l01732"></a><span class="lineno"> 1732</span><span class="comment">     * have already been checked, and unreceived gaps can&#39;t just appear out of nowhere later).  If</span></div>
+<div class="line"><a id="l01733" name="l01733"></a><span class="lineno"> 1733</span><span class="comment">     * any is past the first gap, it qualifies.  (The reverse is true.  If it&#39;s past any gap, it&#39;s</span></div>
+<div class="line"><a id="l01734" name="l01734"></a><span class="lineno"> 1734</span><span class="comment">     * past the first gap.) */</span></div>
+<div class="line"><a id="l01735" name="l01735"></a><span class="lineno"> 1735</span>    <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">Peer_socket::Individual_ack::Const_ptr</a> ack;</div>
+<div class="line"><a id="l01736" name="l01736"></a><span class="lineno"> 1736</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> ack_idx = sock-&gt;m_rcv_pending_acks_size_at_recv_handler_start;</div>
+<div class="line"><a id="l01737" name="l01737"></a><span class="lineno"> 1737</span>         ack_idx != pending_acks.size(); ++ack_idx)</div>
+<div class="line"><a id="l01738" name="l01738"></a><span class="lineno"> 1738</span>    {</div>
+<div class="line"><a id="l01739" name="l01739"></a><span class="lineno"> 1739</span>      ack = pending_acks[ack_idx];</div>
+<div class="line"><a id="l01740" name="l01740"></a><span class="lineno"> 1740</span>      <span class="keywordflow">if</span> (ack-&gt;m_seq_num &gt; sock-&gt;m_rcv_next_seq_num)</div>
+<div class="line"><a id="l01741" name="l01741"></a><span class="lineno"> 1741</span>      {</div>
+<div class="line"><a id="l01742" name="l01742"></a><span class="lineno"> 1742</span>        force_ack = <span class="keyword">true</span>;</div>
+<div class="line"><a id="l01743" name="l01743"></a><span class="lineno"> 1743</span>        <span class="keywordflow">break</span>;</div>
+<div class="line"><a id="l01744" name="l01744"></a><span class="lineno"> 1744</span>      }</div>
+<div class="line"><a id="l01745" name="l01745"></a><span class="lineno"> 1745</span>    }</div>
+<div class="line"><a id="l01746" name="l01746"></a><span class="lineno"> 1746</span> </div>
+<div class="line"><a id="l01747" name="l01747"></a><span class="lineno"> 1747</span>    <span class="keywordflow">if</span> (force_ack)</div>
+<div class="line"><a id="l01748" name="l01748"></a><span class="lineno"> 1748</span>    {</div>
+<div class="line"><a id="l01749" name="l01749"></a><span class="lineno"> 1749</span>      <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a></div>
+<div class="line"><a id="l01750" name="l01750"></a><span class="lineno"> 1750</span>        (<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l01751" name="l01751"></a><span class="lineno"> 1751</span>         <span class="stringliteral">&quot;received out-of-order packet [&quot;</span> &lt;&lt; ack-&gt;m_seq_num &lt;&lt; <span class="stringliteral">&quot;, size &quot;</span> &lt;&lt; ack-&gt;m_data_size &lt;&lt; <span class="stringliteral">&quot;, &quot;</span></div>
+<div class="line"><a id="l01752" name="l01752"></a><span class="lineno"> 1752</span>         <span class="stringliteral">&quot;rexmit &quot;</span> &lt;&lt; ack-&gt;m_rexmit_id &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l01753" name="l01753"></a><span class="lineno"> 1753</span>         <span class="stringliteral">&quot;forcing immediate [ACK].  &quot;</span></div>
+<div class="line"><a id="l01754" name="l01754"></a><span class="lineno"> 1754</span>         <span class="stringliteral">&quot;Receive window state: [&quot;</span> &lt;&lt; sock-&gt;m_rcv_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; sock-&gt;m_rcv_next_seq_num &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l01755" name="l01755"></a><span class="lineno"> 1755</span>         <span class="stringliteral">&quot;| &quot;</span> &lt;&lt; sock-&gt;m_rcv_packets_with_gaps.size() &lt;&lt; <span class="stringliteral">&quot;:{...}.&quot;</span>);</div>
+<div class="line"><a id="l01756" name="l01756"></a><span class="lineno"> 1756</span>    }</div>
+<div class="line"><a id="l01757" name="l01757"></a><span class="lineno"> 1757</span>  }</div>
+<div class="line"><a id="l01758" name="l01758"></a><span class="lineno"> 1758</span>  <span class="keywordflow">if</span> (!force_ack)</div>
+<div class="line"><a id="l01759" name="l01759"></a><span class="lineno"> 1759</span>  {</div>
+<div class="line"><a id="l01760" name="l01760"></a><span class="lineno"> 1760</span>    <span class="comment">// No out-of-order stuff.  See if there are at least N * max-block-size bytes pending to be acknowledged.</span></div>
+<div class="line"><a id="l01761" name="l01761"></a><span class="lineno"> 1761</span> </div>
+<div class="line"><a id="l01762" name="l01762"></a><span class="lineno"> 1762</span>    <span class="keyword">const</span> <span class="keywordtype">size_t</span> limit <span class="comment">// Default 2.</span></div>
+<div class="line"><a id="l01763" name="l01763"></a><span class="lineno"> 1763</span>      = sock-&gt;opt(sock-&gt;m_opts.m_st_max_full_blocks_before_ack_send) * sock-&gt;max_block_size();</div>
+<div class="line"><a id="l01764" name="l01764"></a><span class="lineno"> 1764</span>    <span class="keywordtype">size_t</span> bytes = 0;</div>
+<div class="line"><a id="l01765" name="l01765"></a><span class="lineno"> 1765</span>    <span class="keywordflow">for</span> (<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">Peer_socket::Individual_ack::Const_ptr</a> ack : pending_acks)</div>
+<div class="line"><a id="l01766" name="l01766"></a><span class="lineno"> 1766</span>    {</div>
+<div class="line"><a id="l01767" name="l01767"></a><span class="lineno"> 1767</span>      bytes += ack-&gt;m_data_size;</div>
+<div class="line"><a id="l01768" name="l01768"></a><span class="lineno"> 1768</span>      <span class="keywordflow">if</span> (bytes &gt;= limit)</div>
+<div class="line"><a id="l01769" name="l01769"></a><span class="lineno"> 1769</span>      {</div>
+<div class="line"><a id="l01770" name="l01770"></a><span class="lineno"> 1770</span>        force_ack = <span class="keyword">true</span>;</div>
+<div class="line"><a id="l01771" name="l01771"></a><span class="lineno"> 1771</span>        <span class="keywordflow">break</span>;</div>
+<div class="line"><a id="l01772" name="l01772"></a><span class="lineno"> 1772</span>      }</div>
+<div class="line"><a id="l01773" name="l01773"></a><span class="lineno"> 1773</span>    }</div>
+<div class="line"><a id="l01774" name="l01774"></a><span class="lineno"> 1774</span> </div>
+<div class="line"><a id="l01775" name="l01775"></a><span class="lineno"> 1775</span>    <span class="keywordflow">if</span> (force_ack)</div>
+<div class="line"><a id="l01776" name="l01776"></a><span class="lineno"> 1776</span>    {</div>
+<div class="line"><a id="l01777" name="l01777"></a><span class="lineno"> 1777</span>      <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l01778" name="l01778"></a><span class="lineno"> 1778</span>                     <span class="stringliteral">&quot;accumulated at least [&quot;</span> &lt;&lt; limit &lt;&lt; <span class="stringliteral">&quot;] bytes to acknowledge; &quot;</span></div>
+<div class="line"><a id="l01779" name="l01779"></a><span class="lineno"> 1779</span>                     <span class="stringliteral">&quot;forcing immediate [ACK].&quot;</span>);</div>
+<div class="line"><a id="l01780" name="l01780"></a><span class="lineno"> 1780</span>    }</div>
+<div class="line"><a id="l01781" name="l01781"></a><span class="lineno"> 1781</span>  }</div>
+<div class="line"><a id="l01782" name="l01782"></a><span class="lineno"> 1782</span> </div>
+<div class="line"><a id="l01783" name="l01783"></a><span class="lineno"> 1783</span>  <span class="comment">// OK; force_ack is set finally.</span></div>
+<div class="line"><a id="l01784" name="l01784"></a><span class="lineno"> 1784</span> </div>
+<div class="line"><a id="l01785" name="l01785"></a><span class="lineno"> 1785</span>  <span class="keywordflow">if</span> (force_ack)</div>
+<div class="line"><a id="l01786" name="l01786"></a><span class="lineno"> 1786</span>  {</div>
+<div class="line"><a id="l01787" name="l01787"></a><span class="lineno"> 1787</span>    <span class="comment">/* Yep, must send ACK(s) now.  There are two possibilities.  One, a delayed ACK timer may</span></div>
+<div class="line"><a id="l01788" name="l01788"></a><span class="lineno"> 1788</span><span class="comment">     * already be running.  If so, we should cancel it and send immediately.  If the cancel fails</span></div>
+<div class="line"><a id="l01789" name="l01789"></a><span class="lineno"> 1789</span><span class="comment">     * (returns 0 tasks canceled), then it was already queued to fire very soon, so we should</span></div>
+<div class="line"><a id="l01790" name="l01790"></a><span class="lineno"> 1790</span><span class="comment">     * just let the ACKing happen that way instead of sending immediately.</span></div>
+<div class="line"><a id="l01791" name="l01791"></a><span class="lineno"> 1791</span><span class="comment">     *</span></div>
+<div class="line"><a id="l01792" name="l01792"></a><span class="lineno"> 1792</span><span class="comment">     * Two, a timer is not running, so we shouldn&#39;t cancel and should just send immediately.</span></div>
 <div class="line"><a id="l01793" name="l01793"></a><span class="lineno"> 1793</span><span class="comment">     *</span></div>
-<div class="line"><a id="l01794" name="l01794"></a><span class="lineno"> 1794</span><span class="comment">     * (There may be some corner case I&#39;m not imagining such that the timer was running even while</span></div>
-<div class="line"><a id="l01795" name="l01795"></a><span class="lineno"> 1795</span><span class="comment">     * m_rcv_pending_acks_size_at_recv_handler_start == 0, but even then the worst that will happen is</span></div>
-<div class="line"><a id="l01796" name="l01796"></a><span class="lineno"> 1796</span><span class="comment">     * that we will perform the ACKing here, not cancel that wait, and that timer will</span></div>
-<div class="line"><a id="l01797" name="l01797"></a><span class="lineno"> 1797</span><span class="comment">     * harmlessly expire with the timer handler doing nothing.) */</span></div>
-<div class="line"><a id="l01798" name="l01798"></a><span class="lineno"> 1798</span> </div>
-<div class="line"><a id="l01799" name="l01799"></a><span class="lineno"> 1799</span>    <span class="keywordflow">if</span> (sock-&gt;m_rcv_pending_acks_size_at_recv_handler_start != 0)</div>
-<div class="line"><a id="l01800" name="l01800"></a><span class="lineno"> 1800</span>    {</div>
-<div class="line"><a id="l01801" name="l01801"></a><span class="lineno"> 1801</span>      <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l01802" name="l01802"></a><span class="lineno"> 1802</span>                     <span class="stringliteral">&quot;canceling delayed [ACK] timer due to forcing &quot;</span></div>
-<div class="line"><a id="l01803" name="l01803"></a><span class="lineno"> 1803</span>                     <span class="stringliteral">&quot;immediate [ACK]; would have fired &quot;</span></div>
-<div class="line"><a id="l01804" name="l01804"></a><span class="lineno"> 1804</span>                     <span class="stringliteral">&quot;in [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(sock-&gt;m_rcv_delayed_ack_timer.expires_from_now()) &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l01805" name="l01805"></a><span class="lineno"> 1805</span>                     <span class="stringliteral">&quot;from now.&quot;</span>);</div>
-<div class="line"><a id="l01806" name="l01806"></a><span class="lineno"> 1806</span> </div>
-<div class="line"><a id="l01807" name="l01807"></a><span class="lineno"> 1807</span>      <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> sys_err_code;</div>
-<div class="line"><a id="l01808" name="l01808"></a><span class="lineno"> 1808</span>      <span class="keyword">const</span> <span class="keywordtype">size_t</span> num_canceled = sock-&gt;m_rcv_delayed_ack_timer.cancel(sys_err_code);</div>
-<div class="line"><a id="l01809" name="l01809"></a><span class="lineno"> 1809</span>      <span class="keywordflow">if</span> (sys_err_code)</div>
-<div class="line"><a id="l01810" name="l01810"></a><span class="lineno"> 1810</span>      {</div>
-<div class="line"><a id="l01811" name="l01811"></a><span class="lineno"> 1811</span>        <a class="code hl_define" href="error_2error_8hpp.html#a019ee6e90802e444572dd78d312d6e23">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>(); <span class="comment">// Log the non-portable system error code/message.</span></div>
+<div class="line"><a id="l01794" name="l01794"></a><span class="lineno"> 1794</span><span class="comment">     * How to determine if timer is currently running?  If</span></div>
+<div class="line"><a id="l01795" name="l01795"></a><span class="lineno"> 1795</span><span class="comment">     * m_rcv_pending_acks_size_at_recv_handler_start == 0, then the timer was either never scheduled</span></div>
+<div class="line"><a id="l01796" name="l01796"></a><span class="lineno"> 1796</span><span class="comment">     * (only scheduled when pending_acks.empty()) or was triggered and handled before the current</span></div>
+<div class="line"><a id="l01797" name="l01797"></a><span class="lineno"> 1797</span><span class="comment">     * handler; therefore it is not running.  Otherwise, there were pending acks to send, yet they</span></div>
+<div class="line"><a id="l01798" name="l01798"></a><span class="lineno"> 1798</span><span class="comment">     * were not sent by the end of the last handler, which means the timer must be running.</span></div>
+<div class="line"><a id="l01799" name="l01799"></a><span class="lineno"> 1799</span><span class="comment">     *</span></div>
+<div class="line"><a id="l01800" name="l01800"></a><span class="lineno"> 1800</span><span class="comment">     * (There may be some corner case I&#39;m not imagining such that the timer was running even while</span></div>
+<div class="line"><a id="l01801" name="l01801"></a><span class="lineno"> 1801</span><span class="comment">     * m_rcv_pending_acks_size_at_recv_handler_start == 0, but even then the worst that will happen is</span></div>
+<div class="line"><a id="l01802" name="l01802"></a><span class="lineno"> 1802</span><span class="comment">     * that we will perform the ACKing here, not cancel that wait, and that timer will</span></div>
+<div class="line"><a id="l01803" name="l01803"></a><span class="lineno"> 1803</span><span class="comment">     * harmlessly expire with the timer handler doing nothing.) */</span></div>
+<div class="line"><a id="l01804" name="l01804"></a><span class="lineno"> 1804</span> </div>
+<div class="line"><a id="l01805" name="l01805"></a><span class="lineno"> 1805</span>    <span class="keywordflow">if</span> (sock-&gt;m_rcv_pending_acks_size_at_recv_handler_start != 0)</div>
+<div class="line"><a id="l01806" name="l01806"></a><span class="lineno"> 1806</span>    {</div>
+<div class="line"><a id="l01807" name="l01807"></a><span class="lineno"> 1807</span>      <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l01808" name="l01808"></a><span class="lineno"> 1808</span>                     <span class="stringliteral">&quot;canceling delayed [ACK] timer due to forcing &quot;</span></div>
+<div class="line"><a id="l01809" name="l01809"></a><span class="lineno"> 1809</span>                     <span class="stringliteral">&quot;immediate [ACK]; would have fired &quot;</span></div>
+<div class="line"><a id="l01810" name="l01810"></a><span class="lineno"> 1810</span>                     <span class="stringliteral">&quot;in [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(sock-&gt;m_rcv_delayed_ack_timer.expires_from_now()) &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l01811" name="l01811"></a><span class="lineno"> 1811</span>                     <span class="stringliteral">&quot;from now.&quot;</span>);</div>
 <div class="line"><a id="l01812" name="l01812"></a><span class="lineno"> 1812</span> </div>
-<div class="line"><a id="l01813" name="l01813"></a><span class="lineno"> 1813</span>        <span class="comment">// Pretty unlikely, but let&#39;s send RST and abort connection, since something crazy is going on.</span></div>
-<div class="line"><a id="l01814" name="l01814"></a><span class="lineno"> 1814</span> </div>
-<div class="line"><a id="l01815" name="l01815"></a><span class="lineno"> 1815</span>        <span class="comment">// As above....</span></div>
-<div class="line"><a id="l01816" name="l01816"></a><span class="lineno"> 1816</span>        rst_and_close_connection_immediately(socket_id, sock,</div>
-<div class="line"><a id="l01817" name="l01817"></a><span class="lineno"> 1817</span>                                             <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae020e63f3ada47025681c8d7f2a00f28">error::Code::S_INTERNAL_ERROR_SYSTEM_ERROR_ASIO_TIMER</a>, <span class="keyword">true</span>);</div>
-<div class="line"><a id="l01818" name="l01818"></a><span class="lineno"> 1818</span>        <span class="comment">// ^-- defer_delta_check == true: for similar reason as in handle_syn_ack_ack_to_syn_rcvd().</span></div>
-<div class="line"><a id="l01819" name="l01819"></a><span class="lineno"> 1819</span>        <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l01820" name="l01820"></a><span class="lineno"> 1820</span>      }</div>
-<div class="line"><a id="l01821" name="l01821"></a><span class="lineno"> 1821</span>      <span class="comment">// else</span></div>
-<div class="line"><a id="l01822" name="l01822"></a><span class="lineno"> 1822</span> </div>
-<div class="line"><a id="l01823" name="l01823"></a><span class="lineno"> 1823</span>      <span class="keywordflow">if</span> (num_canceled == 0)</div>
-<div class="line"><a id="l01824" name="l01824"></a><span class="lineno"> 1824</span>      {</div>
-<div class="line"><a id="l01825" name="l01825"></a><span class="lineno"> 1825</span>        <span class="comment">/* Unlikely but legitimate; timer was queued to trigger very soon, so we could not</span></div>
-<div class="line"><a id="l01826" name="l01826"></a><span class="lineno"> 1826</span><span class="comment">         * cancel it.  No problem -- just let the ACKing happen per timer.  Log INFO due to</span></div>
-<div class="line"><a id="l01827" name="l01827"></a><span class="lineno"> 1827</span><span class="comment">         * rarity of this situation. */</span></div>
-<div class="line"><a id="l01828" name="l01828"></a><span class="lineno"> 1828</span>        <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l01829" name="l01829"></a><span class="lineno"> 1829</span>                      <span class="stringliteral">&quot;tried to cancel delayed [ACK] timer while &quot;</span></div>
-<div class="line"><a id="l01830" name="l01830"></a><span class="lineno"> 1830</span>                      <span class="stringliteral">&quot;forcing [ACK], but it was already just about to fire.&quot;</span>);</div>
-<div class="line"><a id="l01831" name="l01831"></a><span class="lineno"> 1831</span>        force_ack = <span class="keyword">false</span>;</div>
-<div class="line"><a id="l01832" name="l01832"></a><span class="lineno"> 1832</span>      }</div>
-<div class="line"><a id="l01833" name="l01833"></a><span class="lineno"> 1833</span>    } <span class="comment">// if (m_rcv_pending_acks_size_at_recv_handler_start != 0) [timer was running]</span></div>
-<div class="line"><a id="l01834" name="l01834"></a><span class="lineno"> 1834</span> </div>
-<div class="line"><a id="l01835" name="l01835"></a><span class="lineno"> 1835</span>    <span class="comment">// If still forcing immediate ACK, finally do it.</span></div>
-<div class="line"><a id="l01836" name="l01836"></a><span class="lineno"> 1836</span>    <span class="keywordflow">if</span> (force_ack)</div>
-<div class="line"><a id="l01837" name="l01837"></a><span class="lineno"> 1837</span>    {</div>
-<div class="line"><a id="l01838" name="l01838"></a><span class="lineno"> 1838</span>      async_low_lvl_ack_send(sock, <span class="keyword">true</span>);</div>
-<div class="line"><a id="l01839" name="l01839"></a><span class="lineno"> 1839</span>      <span class="comment">// ^-- defer_delta_check == true: for similar reason as in handle_syn_ack_ack_to_syn_rcvd().</span></div>
+<div class="line"><a id="l01813" name="l01813"></a><span class="lineno"> 1813</span>      <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> sys_err_code;</div>
+<div class="line"><a id="l01814" name="l01814"></a><span class="lineno"> 1814</span>      <span class="keyword">const</span> <span class="keywordtype">size_t</span> num_canceled = sock-&gt;m_rcv_delayed_ack_timer.cancel(sys_err_code);</div>
+<div class="line"><a id="l01815" name="l01815"></a><span class="lineno"> 1815</span>      <span class="keywordflow">if</span> (sys_err_code)</div>
+<div class="line"><a id="l01816" name="l01816"></a><span class="lineno"> 1816</span>      {</div>
+<div class="line"><a id="l01817" name="l01817"></a><span class="lineno"> 1817</span>        <a class="code hl_define" href="error_2error_8hpp.html#a019ee6e90802e444572dd78d312d6e23">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>(); <span class="comment">// Log the non-portable system error code/message.</span></div>
+<div class="line"><a id="l01818" name="l01818"></a><span class="lineno"> 1818</span> </div>
+<div class="line"><a id="l01819" name="l01819"></a><span class="lineno"> 1819</span>        <span class="comment">// Pretty unlikely, but let&#39;s send RST and abort connection, since something crazy is going on.</span></div>
+<div class="line"><a id="l01820" name="l01820"></a><span class="lineno"> 1820</span> </div>
+<div class="line"><a id="l01821" name="l01821"></a><span class="lineno"> 1821</span>        <span class="comment">// As above....</span></div>
+<div class="line"><a id="l01822" name="l01822"></a><span class="lineno"> 1822</span>        rst_and_close_connection_immediately(socket_id, sock,</div>
+<div class="line"><a id="l01823" name="l01823"></a><span class="lineno"> 1823</span>                                             <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae020e63f3ada47025681c8d7f2a00f28">error::Code::S_INTERNAL_ERROR_SYSTEM_ERROR_ASIO_TIMER</a>, <span class="keyword">true</span>);</div>
+<div class="line"><a id="l01824" name="l01824"></a><span class="lineno"> 1824</span>        <span class="comment">// ^-- defer_delta_check == true: for similar reason as in handle_syn_ack_ack_to_syn_rcvd().</span></div>
+<div class="line"><a id="l01825" name="l01825"></a><span class="lineno"> 1825</span>        <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l01826" name="l01826"></a><span class="lineno"> 1826</span>      }</div>
+<div class="line"><a id="l01827" name="l01827"></a><span class="lineno"> 1827</span>      <span class="comment">// else</span></div>
+<div class="line"><a id="l01828" name="l01828"></a><span class="lineno"> 1828</span> </div>
+<div class="line"><a id="l01829" name="l01829"></a><span class="lineno"> 1829</span>      <span class="keywordflow">if</span> (num_canceled == 0)</div>
+<div class="line"><a id="l01830" name="l01830"></a><span class="lineno"> 1830</span>      {</div>
+<div class="line"><a id="l01831" name="l01831"></a><span class="lineno"> 1831</span>        <span class="comment">/* Unlikely but legitimate; timer was queued to trigger very soon, so we could not</span></div>
+<div class="line"><a id="l01832" name="l01832"></a><span class="lineno"> 1832</span><span class="comment">         * cancel it.  No problem -- just let the ACKing happen per timer.  Log INFO due to</span></div>
+<div class="line"><a id="l01833" name="l01833"></a><span class="lineno"> 1833</span><span class="comment">         * rarity of this situation. */</span></div>
+<div class="line"><a id="l01834" name="l01834"></a><span class="lineno"> 1834</span>        <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l01835" name="l01835"></a><span class="lineno"> 1835</span>                      <span class="stringliteral">&quot;tried to cancel delayed [ACK] timer while &quot;</span></div>
+<div class="line"><a id="l01836" name="l01836"></a><span class="lineno"> 1836</span>                      <span class="stringliteral">&quot;forcing [ACK], but it was already just about to fire.&quot;</span>);</div>
+<div class="line"><a id="l01837" name="l01837"></a><span class="lineno"> 1837</span>        force_ack = <span class="keyword">false</span>;</div>
+<div class="line"><a id="l01838" name="l01838"></a><span class="lineno"> 1838</span>      }</div>
+<div class="line"><a id="l01839" name="l01839"></a><span class="lineno"> 1839</span>    } <span class="comment">// if (m_rcv_pending_acks_size_at_recv_handler_start != 0) [timer was running]</span></div>
 <div class="line"><a id="l01840" name="l01840"></a><span class="lineno"> 1840</span> </div>
-<div class="line"><a id="l01841" name="l01841"></a><span class="lineno"> 1841</span>      assert(pending_acks.empty());</div>
-<div class="line"><a id="l01842" name="l01842"></a><span class="lineno"> 1842</span>    }</div>
-<div class="line"><a id="l01843" name="l01843"></a><span class="lineno"> 1843</span>  } <span class="comment">// if (force_ack)</span></div>
-<div class="line"><a id="l01844" name="l01844"></a><span class="lineno"> 1844</span>  <span class="keywordflow">else</span> <span class="comment">// if (!force_ack)</span></div>
-<div class="line"><a id="l01845" name="l01845"></a><span class="lineno"> 1845</span>  {</div>
-<div class="line"><a id="l01846" name="l01846"></a><span class="lineno"> 1846</span>    <span class="comment">/* There are pending individual acks but no reason to send them off right now.  The only</span></div>
-<div class="line"><a id="l01847" name="l01847"></a><span class="lineno"> 1847</span><span class="comment">     * remaining question is whether we need to schedule the delayed ACK timer to send them</span></div>
-<div class="line"><a id="l01848" name="l01848"></a><span class="lineno"> 1848</span><span class="comment">     * later.  That depends on whether the timer is already running.  If</span></div>
-<div class="line"><a id="l01849" name="l01849"></a><span class="lineno"> 1849</span><span class="comment">     * m_rcv_pending_acks_size_at_recv_handler_start == 0, then the timer was either never scheduled</span></div>
-<div class="line"><a id="l01850" name="l01850"></a><span class="lineno"> 1850</span><span class="comment">     * or was triggered and handled before the current handler; therefore it is not running.  So</span></div>
-<div class="line"><a id="l01851" name="l01851"></a><span class="lineno"> 1851</span><span class="comment">     * in that case we should start it, as we&#39;ve just received our first ackable DATA since</span></div>
-<div class="line"><a id="l01852" name="l01852"></a><span class="lineno"> 1852</span><span class="comment">     * we&#39;ve sent off our last ACK.  If m_rcv_pending_acks_size_at_recv_handler_start != 0, then the</span></div>
-<div class="line"><a id="l01853" name="l01853"></a><span class="lineno"> 1853</span><span class="comment">     * timer must be running, because there were pending acks to send, yet they were not send by</span></div>
-<div class="line"><a id="l01854" name="l01854"></a><span class="lineno"> 1854</span><span class="comment">     * the end of the last handler (which would have caused this very code to schedule the</span></div>
-<div class="line"><a id="l01855" name="l01855"></a><span class="lineno"> 1855</span><span class="comment">     * timer).</span></div>
-<div class="line"><a id="l01856" name="l01856"></a><span class="lineno"> 1856</span><span class="comment">     *</span></div>
-<div class="line"><a id="l01857" name="l01857"></a><span class="lineno"> 1857</span><span class="comment">     * (There may be some corner case I&#39;m not imagining such that the timer was running even while</span></div>
-<div class="line"><a id="l01858" name="l01858"></a><span class="lineno"> 1858</span><span class="comment">     * m_rcv_pending_acks_size_at_recv_handler_start == 0, but even then it can&#39;t possibly be set to</span></div>
-<div class="line"><a id="l01859" name="l01859"></a><span class="lineno"> 1859</span><span class="comment">     * the right time [which is S_DELAYED_ACK_TIMER_PERIOD for now], so we need to re-set it</span></div>
-<div class="line"><a id="l01860" name="l01860"></a><span class="lineno"> 1860</span><span class="comment">     * anyway.  [Re-setting the expiry time will cancel that running timer wait.  Even if that</span></div>
-<div class="line"><a id="l01861" name="l01861"></a><span class="lineno"> 1861</span><span class="comment">     * somehow fails, the worst case is that the ACK(s) will be sent prematurely.]) */</span></div>
-<div class="line"><a id="l01862" name="l01862"></a><span class="lineno"> 1862</span> </div>
-<div class="line"><a id="l01863" name="l01863"></a><span class="lineno"> 1863</span>    <span class="keywordflow">if</span> (sock-&gt;m_rcv_pending_acks_size_at_recv_handler_start == 0)</div>
-<div class="line"><a id="l01864" name="l01864"></a><span class="lineno"> 1864</span>    {</div>
-<div class="line"><a id="l01865" name="l01865"></a><span class="lineno"> 1865</span>      <span class="comment">// First individual acknowledgment accumulated: start countdown to send the next batch of acknowledgments.</span></div>
-<div class="line"><a id="l01866" name="l01866"></a><span class="lineno"> 1866</span> </div>
-<div class="line"><a id="l01867" name="l01867"></a><span class="lineno"> 1867</span>      <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> sys_err_code;</div>
-<div class="line"><a id="l01868" name="l01868"></a><span class="lineno"> 1868</span>      sock-&gt;m_rcv_delayed_ack_timer.expires_from_now(delayed_ack_timer_period, sys_err_code);</div>
-<div class="line"><a id="l01869" name="l01869"></a><span class="lineno"> 1869</span>      <span class="keywordflow">if</span> (sys_err_code)</div>
-<div class="line"><a id="l01870" name="l01870"></a><span class="lineno"> 1870</span>      {</div>
-<div class="line"><a id="l01871" name="l01871"></a><span class="lineno"> 1871</span>        <a class="code hl_define" href="error_2error_8hpp.html#a019ee6e90802e444572dd78d312d6e23">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>(); <span class="comment">// Log the non-portable system error code/message.</span></div>
+<div class="line"><a id="l01841" name="l01841"></a><span class="lineno"> 1841</span>    <span class="comment">// If still forcing immediate ACK, finally do it.</span></div>
+<div class="line"><a id="l01842" name="l01842"></a><span class="lineno"> 1842</span>    <span class="keywordflow">if</span> (force_ack)</div>
+<div class="line"><a id="l01843" name="l01843"></a><span class="lineno"> 1843</span>    {</div>
+<div class="line"><a id="l01844" name="l01844"></a><span class="lineno"> 1844</span>      async_low_lvl_ack_send(sock, <span class="keyword">true</span>);</div>
+<div class="line"><a id="l01845" name="l01845"></a><span class="lineno"> 1845</span>      <span class="comment">// ^-- defer_delta_check == true: for similar reason as in handle_syn_ack_ack_to_syn_rcvd().</span></div>
+<div class="line"><a id="l01846" name="l01846"></a><span class="lineno"> 1846</span> </div>
+<div class="line"><a id="l01847" name="l01847"></a><span class="lineno"> 1847</span>      assert(pending_acks.empty());</div>
+<div class="line"><a id="l01848" name="l01848"></a><span class="lineno"> 1848</span>    }</div>
+<div class="line"><a id="l01849" name="l01849"></a><span class="lineno"> 1849</span>  } <span class="comment">// if (force_ack)</span></div>
+<div class="line"><a id="l01850" name="l01850"></a><span class="lineno"> 1850</span>  <span class="keywordflow">else</span> <span class="comment">// if (!force_ack)</span></div>
+<div class="line"><a id="l01851" name="l01851"></a><span class="lineno"> 1851</span>  {</div>
+<div class="line"><a id="l01852" name="l01852"></a><span class="lineno"> 1852</span>    <span class="comment">/* There are pending individual acks but no reason to send them off right now.  The only</span></div>
+<div class="line"><a id="l01853" name="l01853"></a><span class="lineno"> 1853</span><span class="comment">     * remaining question is whether we need to schedule the delayed ACK timer to send them</span></div>
+<div class="line"><a id="l01854" name="l01854"></a><span class="lineno"> 1854</span><span class="comment">     * later.  That depends on whether the timer is already running.  If</span></div>
+<div class="line"><a id="l01855" name="l01855"></a><span class="lineno"> 1855</span><span class="comment">     * m_rcv_pending_acks_size_at_recv_handler_start == 0, then the timer was either never scheduled</span></div>
+<div class="line"><a id="l01856" name="l01856"></a><span class="lineno"> 1856</span><span class="comment">     * or was triggered and handled before the current handler; therefore it is not running.  So</span></div>
+<div class="line"><a id="l01857" name="l01857"></a><span class="lineno"> 1857</span><span class="comment">     * in that case we should start it, as we&#39;ve just received our first ackable DATA since</span></div>
+<div class="line"><a id="l01858" name="l01858"></a><span class="lineno"> 1858</span><span class="comment">     * we&#39;ve sent off our last ACK.  If m_rcv_pending_acks_size_at_recv_handler_start != 0, then the</span></div>
+<div class="line"><a id="l01859" name="l01859"></a><span class="lineno"> 1859</span><span class="comment">     * timer must be running, because there were pending acks to send, yet they were not send by</span></div>
+<div class="line"><a id="l01860" name="l01860"></a><span class="lineno"> 1860</span><span class="comment">     * the end of the last handler (which would have caused this very code to schedule the</span></div>
+<div class="line"><a id="l01861" name="l01861"></a><span class="lineno"> 1861</span><span class="comment">     * timer).</span></div>
+<div class="line"><a id="l01862" name="l01862"></a><span class="lineno"> 1862</span><span class="comment">     *</span></div>
+<div class="line"><a id="l01863" name="l01863"></a><span class="lineno"> 1863</span><span class="comment">     * (There may be some corner case I&#39;m not imagining such that the timer was running even while</span></div>
+<div class="line"><a id="l01864" name="l01864"></a><span class="lineno"> 1864</span><span class="comment">     * m_rcv_pending_acks_size_at_recv_handler_start == 0, but even then it can&#39;t possibly be set to</span></div>
+<div class="line"><a id="l01865" name="l01865"></a><span class="lineno"> 1865</span><span class="comment">     * the right time [which is S_DELAYED_ACK_TIMER_PERIOD for now], so we need to re-set it</span></div>
+<div class="line"><a id="l01866" name="l01866"></a><span class="lineno"> 1866</span><span class="comment">     * anyway.  [Re-setting the expiry time will cancel that running timer wait.  Even if that</span></div>
+<div class="line"><a id="l01867" name="l01867"></a><span class="lineno"> 1867</span><span class="comment">     * somehow fails, the worst case is that the ACK(s) will be sent prematurely.]) */</span></div>
+<div class="line"><a id="l01868" name="l01868"></a><span class="lineno"> 1868</span> </div>
+<div class="line"><a id="l01869" name="l01869"></a><span class="lineno"> 1869</span>    <span class="keywordflow">if</span> (sock-&gt;m_rcv_pending_acks_size_at_recv_handler_start == 0)</div>
+<div class="line"><a id="l01870" name="l01870"></a><span class="lineno"> 1870</span>    {</div>
+<div class="line"><a id="l01871" name="l01871"></a><span class="lineno"> 1871</span>      <span class="comment">// First individual acknowledgment accumulated: start countdown to send the next batch of acknowledgments.</span></div>
 <div class="line"><a id="l01872" name="l01872"></a><span class="lineno"> 1872</span> </div>
-<div class="line"><a id="l01873" name="l01873"></a><span class="lineno"> 1873</span>        <span class="comment">// Pretty unlikely, but let&#39;s send RST and abort connection, since something crazy is going on.</span></div>
-<div class="line"><a id="l01874" name="l01874"></a><span class="lineno"> 1874</span> </div>
-<div class="line"><a id="l01875" name="l01875"></a><span class="lineno"> 1875</span>        <span class="comment">/* Close connection in our structures (inform user if necessary as well).  Pre-conditions</span></div>
-<div class="line"><a id="l01876" name="l01876"></a><span class="lineno"> 1876</span><span class="comment">         * assumed by call: sock in m_socks and sock-&gt;state() == S_OPEN (yes, since m_int_state ==</span></div>
-<div class="line"><a id="l01877" name="l01877"></a><span class="lineno"> 1877</span><span class="comment">         * S_ESTABLISHED); 3rd arg contains the reason for the close (yes).  This will empty the Send</span></div>
-<div class="line"><a id="l01878" name="l01878"></a><span class="lineno"> 1878</span><span class="comment">         * and Receive buffers.  That is OK, because this is the abrupt type of close (error). */</span></div>
-<div class="line"><a id="l01879" name="l01879"></a><span class="lineno"> 1879</span>        rst_and_close_connection_immediately(socket_id, sock,</div>
-<div class="line"><a id="l01880" name="l01880"></a><span class="lineno"> 1880</span>                                             <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae020e63f3ada47025681c8d7f2a00f28">error::Code::S_INTERNAL_ERROR_SYSTEM_ERROR_ASIO_TIMER</a>, <span class="keyword">true</span>);</div>
-<div class="line"><a id="l01881" name="l01881"></a><span class="lineno"> 1881</span>        <span class="comment">// ^-- defer_delta_check == true: for similar reason as in handle_syn_ack_ack_to_syn_rcvd().</span></div>
-<div class="line"><a id="l01882" name="l01882"></a><span class="lineno"> 1882</span>        <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l01883" name="l01883"></a><span class="lineno"> 1883</span>      }</div>
-<div class="line"><a id="l01884" name="l01884"></a><span class="lineno"> 1884</span>      <span class="comment">// else</span></div>
-<div class="line"><a id="l01885" name="l01885"></a><span class="lineno"> 1885</span> </div>
-<div class="line"><a id="l01886" name="l01886"></a><span class="lineno"> 1886</span>      <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l01887" name="l01887"></a><span class="lineno"> 1887</span>                     <span class="stringliteral">&quot;scheduled delayed [ACK] timer to fire &quot;</span></div>
-<div class="line"><a id="l01888" name="l01888"></a><span class="lineno"> 1888</span>                     <span class="stringliteral">&quot;in [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(delayed_ack_timer_period) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l01889" name="l01889"></a><span class="lineno"> 1889</span> </div>
-<div class="line"><a id="l01890" name="l01890"></a><span class="lineno"> 1890</span>      <span class="comment">// When triggered or canceled, call this-&gt;async_low_lvl_ack_send(sock, false, &lt;error code&gt;).</span></div>
-<div class="line"><a id="l01891" name="l01891"></a><span class="lineno"> 1891</span>      sock-&gt;m_rcv_delayed_ack_timer.async_wait([<span class="keyword">this</span>, socket_id, sock](<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>&amp; sys_err_code)</div>
-<div class="line"><a id="l01892" name="l01892"></a><span class="lineno"> 1892</span>      {</div>
-<div class="line"><a id="l01893" name="l01893"></a><span class="lineno"> 1893</span>        async_low_lvl_ack_send(sock, <span class="keyword">false</span>, sys_err_code);</div>
-<div class="line"><a id="l01894" name="l01894"></a><span class="lineno"> 1894</span>      });</div>
-<div class="line"><a id="l01895" name="l01895"></a><span class="lineno"> 1895</span>      <span class="comment">// ^-- defer_delta_check == false: for similar reason as in send_worker_check_state() calling send_worker().</span></div>
-<div class="line"><a id="l01896" name="l01896"></a><span class="lineno"> 1896</span>    }</div>
-<div class="line"><a id="l01897" name="l01897"></a><span class="lineno"> 1897</span>    <span class="comment">// else the timer is already started, so just accumulating onto pending_acks is enough.  Done.</span></div>
-<div class="line"><a id="l01898" name="l01898"></a><span class="lineno"> 1898</span>  } <span class="comment">// if (!force_ack)</span></div>
-<div class="line"><a id="l01899" name="l01899"></a><span class="lineno"> 1899</span> </div>
-<div class="line"><a id="l01900" name="l01900"></a><span class="lineno"> 1900</span>  <span class="comment">// Register the current # of DATA packets to acknowledge.  Note that we&#39;re near the end of current handler.</span></div>
-<div class="line"><a id="l01901" name="l01901"></a><span class="lineno"> 1901</span>  sock-&gt;m_rcv_stats.current_pending_to_ack_packets(pending_acks.size());</div>
-<div class="line"><a id="l01902" name="l01902"></a><span class="lineno"> 1902</span>} <span class="comment">// Node::sock_perform_accumulated_on_recv_tasks()</span></div>
-<div class="line"><a id="l01903" name="l01903"></a><span class="lineno"> 1903</span> </div>
-<div class="line"><a id="l01904" name="l01904"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ac2fdb686165aae42f474cc655fca80c0"> 1904</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac2fdb686165aae42f474cc655fca80c0">Node::log_rcv_window</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock, <span class="keywordtype">bool</span> force_verbose_info_logging)<span class="keyword"> const</span></div>
-<div class="line"><a id="l01905" name="l01905"></a><span class="lineno"> 1905</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l01906" name="l01906"></a><span class="lineno"> 1906</span>  <span class="keyword">using </span>std::vector;</div>
-<div class="line"><a id="l01907" name="l01907"></a><span class="lineno"> 1907</span>  <span class="keyword">using </span>std::string;</div>
-<div class="line"><a id="l01908" name="l01908"></a><span class="lineno"> 1908</span>  <span class="keyword">using </span>boost::algorithm::join;</div>
+<div class="line"><a id="l01873" name="l01873"></a><span class="lineno"> 1873</span>      <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> sys_err_code;</div>
+<div class="line"><a id="l01874" name="l01874"></a><span class="lineno"> 1874</span>      sock-&gt;m_rcv_delayed_ack_timer.expires_from_now(delayed_ack_timer_period, sys_err_code);</div>
+<div class="line"><a id="l01875" name="l01875"></a><span class="lineno"> 1875</span>      <span class="keywordflow">if</span> (sys_err_code)</div>
+<div class="line"><a id="l01876" name="l01876"></a><span class="lineno"> 1876</span>      {</div>
+<div class="line"><a id="l01877" name="l01877"></a><span class="lineno"> 1877</span>        <a class="code hl_define" href="error_2error_8hpp.html#a019ee6e90802e444572dd78d312d6e23">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>(); <span class="comment">// Log the non-portable system error code/message.</span></div>
+<div class="line"><a id="l01878" name="l01878"></a><span class="lineno"> 1878</span> </div>
+<div class="line"><a id="l01879" name="l01879"></a><span class="lineno"> 1879</span>        <span class="comment">// Pretty unlikely, but let&#39;s send RST and abort connection, since something crazy is going on.</span></div>
+<div class="line"><a id="l01880" name="l01880"></a><span class="lineno"> 1880</span> </div>
+<div class="line"><a id="l01881" name="l01881"></a><span class="lineno"> 1881</span>        <span class="comment">/* Close connection in our structures (inform user if necessary as well).  Pre-conditions</span></div>
+<div class="line"><a id="l01882" name="l01882"></a><span class="lineno"> 1882</span><span class="comment">         * assumed by call: sock in m_socks and sock-&gt;state() == S_OPEN (yes, since m_int_state ==</span></div>
+<div class="line"><a id="l01883" name="l01883"></a><span class="lineno"> 1883</span><span class="comment">         * S_ESTABLISHED); 3rd arg contains the reason for the close (yes).  This will empty the Send</span></div>
+<div class="line"><a id="l01884" name="l01884"></a><span class="lineno"> 1884</span><span class="comment">         * and Receive buffers.  That is OK, because this is the abrupt type of close (error). */</span></div>
+<div class="line"><a id="l01885" name="l01885"></a><span class="lineno"> 1885</span>        rst_and_close_connection_immediately(socket_id, sock,</div>
+<div class="line"><a id="l01886" name="l01886"></a><span class="lineno"> 1886</span>                                             <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae020e63f3ada47025681c8d7f2a00f28">error::Code::S_INTERNAL_ERROR_SYSTEM_ERROR_ASIO_TIMER</a>, <span class="keyword">true</span>);</div>
+<div class="line"><a id="l01887" name="l01887"></a><span class="lineno"> 1887</span>        <span class="comment">// ^-- defer_delta_check == true: for similar reason as in handle_syn_ack_ack_to_syn_rcvd().</span></div>
+<div class="line"><a id="l01888" name="l01888"></a><span class="lineno"> 1888</span>        <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l01889" name="l01889"></a><span class="lineno"> 1889</span>      }</div>
+<div class="line"><a id="l01890" name="l01890"></a><span class="lineno"> 1890</span>      <span class="comment">// else</span></div>
+<div class="line"><a id="l01891" name="l01891"></a><span class="lineno"> 1891</span> </div>
+<div class="line"><a id="l01892" name="l01892"></a><span class="lineno"> 1892</span>      <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l01893" name="l01893"></a><span class="lineno"> 1893</span>                     <span class="stringliteral">&quot;scheduled delayed [ACK] timer to fire &quot;</span></div>
+<div class="line"><a id="l01894" name="l01894"></a><span class="lineno"> 1894</span>                     <span class="stringliteral">&quot;in [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(delayed_ack_timer_period) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l01895" name="l01895"></a><span class="lineno"> 1895</span> </div>
+<div class="line"><a id="l01896" name="l01896"></a><span class="lineno"> 1896</span>      <span class="comment">// When triggered or canceled, call this-&gt;async_low_lvl_ack_send(sock, false, &lt;error code&gt;).</span></div>
+<div class="line"><a id="l01897" name="l01897"></a><span class="lineno"> 1897</span>      sock-&gt;m_rcv_delayed_ack_timer.async_wait([<span class="keyword">this</span>, socket_id, sock](<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>&amp; sys_err_code)</div>
+<div class="line"><a id="l01898" name="l01898"></a><span class="lineno"> 1898</span>      {</div>
+<div class="line"><a id="l01899" name="l01899"></a><span class="lineno"> 1899</span>        async_low_lvl_ack_send(sock, <span class="keyword">false</span>, sys_err_code);</div>
+<div class="line"><a id="l01900" name="l01900"></a><span class="lineno"> 1900</span>      });</div>
+<div class="line"><a id="l01901" name="l01901"></a><span class="lineno"> 1901</span>      <span class="comment">// ^-- defer_delta_check == false: for similar reason as in send_worker_check_state() calling send_worker().</span></div>
+<div class="line"><a id="l01902" name="l01902"></a><span class="lineno"> 1902</span>    }</div>
+<div class="line"><a id="l01903" name="l01903"></a><span class="lineno"> 1903</span>    <span class="comment">// else the timer is already started, so just accumulating onto pending_acks is enough.  Done.</span></div>
+<div class="line"><a id="l01904" name="l01904"></a><span class="lineno"> 1904</span>  } <span class="comment">// if (!force_ack)</span></div>
+<div class="line"><a id="l01905" name="l01905"></a><span class="lineno"> 1905</span> </div>
+<div class="line"><a id="l01906" name="l01906"></a><span class="lineno"> 1906</span>  <span class="comment">// Register the current # of DATA packets to acknowledge.  Note that we&#39;re near the end of current handler.</span></div>
+<div class="line"><a id="l01907" name="l01907"></a><span class="lineno"> 1907</span>  sock-&gt;m_rcv_stats.current_pending_to_ack_packets(pending_acks.size());</div>
+<div class="line"><a id="l01908" name="l01908"></a><span class="lineno"> 1908</span>} <span class="comment">// Node::sock_perform_accumulated_on_recv_tasks()</span></div>
 <div class="line"><a id="l01909" name="l01909"></a><span class="lineno"> 1909</span> </div>
-<div class="line"><a id="l01910" name="l01910"></a><span class="lineno"> 1910</span>  <span class="comment">// We&#39;re in thread W.</span></div>
-<div class="line"><a id="l01911" name="l01911"></a><span class="lineno"> 1911</span> </div>
-<div class="line"><a id="l01912" name="l01912"></a><span class="lineno"> 1912</span>  <span class="comment">// For brevity and a little speed:</span></div>
-<div class="line"><a id="l01913" name="l01913"></a><span class="lineno"> 1913</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#addfc181f4d43ab816b2ede9216bf9331">Peer_socket::Recvd_pkt_map</a>&amp; rcv_packets_with_gaps = sock-&gt;m_rcv_packets_with_gaps;</div>
-<div class="line"><a id="l01914" name="l01914"></a><span class="lineno"> 1914</span> </div>
-<div class="line"><a id="l01915" name="l01915"></a><span class="lineno"> 1915</span>  <span class="comment">// force_verbose_info_logging =&gt; log the most detail, as INFO (if INFO logging enabled).</span></div>
-<div class="line"><a id="l01916" name="l01916"></a><span class="lineno"> 1916</span> </div>
-<div class="line"><a id="l01917" name="l01917"></a><span class="lineno"> 1917</span>  <span class="keyword">auto</span> <span class="keyword">const</span> logger_ptr = <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>();</div>
-<div class="line"><a id="l01918" name="l01918"></a><span class="lineno"> 1918</span>  <span class="keywordflow">if</span> (((!logger_ptr) || (!logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">log::Sev::S_DATA</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>()))) &amp;&amp;</div>
-<div class="line"><a id="l01919" name="l01919"></a><span class="lineno"> 1919</span>      (!(force_verbose_info_logging &amp;&amp; logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">log::Sev::S_INFO</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>()))))</div>
-<div class="line"><a id="l01920" name="l01920"></a><span class="lineno"> 1920</span>  {</div>
-<div class="line"><a id="l01921" name="l01921"></a><span class="lineno"> 1921</span>    <span class="comment">// Can&#39;t print entire In-flight data structure, but can print a summary, if TRACE enabled.</span></div>
-<div class="line"><a id="l01922" name="l01922"></a><span class="lineno"> 1922</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a></div>
-<div class="line"><a id="l01923" name="l01923"></a><span class="lineno"> 1923</span>      (<span class="stringliteral">&quot;Receive window state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
-<div class="line"><a id="l01924" name="l01924"></a><span class="lineno"> 1924</span>       <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;m_rcv_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; sock-&gt;m_rcv_next_seq_num &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l01925" name="l01925"></a><span class="lineno"> 1925</span>       <span class="stringliteral">&quot;| &quot;</span> &lt;&lt; rcv_packets_with_gaps.size() &lt;&lt; <span class="stringliteral">&quot;:{...}.&quot;</span>);</div>
-<div class="line"><a id="l01926" name="l01926"></a><span class="lineno"> 1926</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l01927" name="l01927"></a><span class="lineno"> 1927</span>  }</div>
-<div class="line"><a id="l01928" name="l01928"></a><span class="lineno"> 1928</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l01929" name="l01929"></a><span class="lineno"> 1929</span> </div>
-<div class="line"><a id="l01930" name="l01930"></a><span class="lineno"> 1930</span>  <span class="comment">/* Construct full printout of the packets we&#39;ve received past the first unreceived gap.</span></div>
-<div class="line"><a id="l01931" name="l01931"></a><span class="lineno"> 1931</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01932" name="l01932"></a><span class="lineno"> 1932</span><span class="comment">   * Very verbose and slow!  Even so, if it gets beyond a certain size it&#39;s absurd, so skip some in</span></div>
-<div class="line"><a id="l01933" name="l01933"></a><span class="lineno"> 1933</span><span class="comment">   * that case even though DATA logging is sanctioned.  (That amount of data cannot really be useful</span></div>
-<div class="line"><a id="l01934" name="l01934"></a><span class="lineno"> 1934</span><span class="comment">   * in any case.) */</span></div>
+<div class="line"><a id="l01910" name="l01910"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ac2fdb686165aae42f474cc655fca80c0"> 1910</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac2fdb686165aae42f474cc655fca80c0">Node::log_rcv_window</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock, <span class="keywordtype">bool</span> force_verbose_info_logging)<span class="keyword"> const</span></div>
+<div class="line"><a id="l01911" name="l01911"></a><span class="lineno"> 1911</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l01912" name="l01912"></a><span class="lineno"> 1912</span>  <span class="keyword">using </span>std::vector;</div>
+<div class="line"><a id="l01913" name="l01913"></a><span class="lineno"> 1913</span>  <span class="keyword">using </span>std::string;</div>
+<div class="line"><a id="l01914" name="l01914"></a><span class="lineno"> 1914</span>  <span class="keyword">using </span>boost::algorithm::join;</div>
+<div class="line"><a id="l01915" name="l01915"></a><span class="lineno"> 1915</span> </div>
+<div class="line"><a id="l01916" name="l01916"></a><span class="lineno"> 1916</span>  <span class="comment">// We&#39;re in thread W.</span></div>
+<div class="line"><a id="l01917" name="l01917"></a><span class="lineno"> 1917</span> </div>
+<div class="line"><a id="l01918" name="l01918"></a><span class="lineno"> 1918</span>  <span class="comment">// For brevity and a little speed:</span></div>
+<div class="line"><a id="l01919" name="l01919"></a><span class="lineno"> 1919</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#addfc181f4d43ab816b2ede9216bf9331">Peer_socket::Recvd_pkt_map</a>&amp; rcv_packets_with_gaps = sock-&gt;m_rcv_packets_with_gaps;</div>
+<div class="line"><a id="l01920" name="l01920"></a><span class="lineno"> 1920</span> </div>
+<div class="line"><a id="l01921" name="l01921"></a><span class="lineno"> 1921</span>  <span class="comment">// force_verbose_info_logging =&gt; log the most detail, as INFO (if INFO logging enabled).</span></div>
+<div class="line"><a id="l01922" name="l01922"></a><span class="lineno"> 1922</span> </div>
+<div class="line"><a id="l01923" name="l01923"></a><span class="lineno"> 1923</span>  <span class="keyword">auto</span> <span class="keyword">const</span> logger_ptr = <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>();</div>
+<div class="line"><a id="l01924" name="l01924"></a><span class="lineno"> 1924</span>  <span class="keywordflow">if</span> (((!logger_ptr) || (!logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">log::Sev::S_DATA</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>()))) &amp;&amp;</div>
+<div class="line"><a id="l01925" name="l01925"></a><span class="lineno"> 1925</span>      (!(force_verbose_info_logging &amp;&amp; logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">log::Sev::S_INFO</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>()))))</div>
+<div class="line"><a id="l01926" name="l01926"></a><span class="lineno"> 1926</span>  {</div>
+<div class="line"><a id="l01927" name="l01927"></a><span class="lineno"> 1927</span>    <span class="comment">// Can&#39;t print entire In-flight data structure, but can print a summary, if TRACE enabled.</span></div>
+<div class="line"><a id="l01928" name="l01928"></a><span class="lineno"> 1928</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a></div>
+<div class="line"><a id="l01929" name="l01929"></a><span class="lineno"> 1929</span>      (<span class="stringliteral">&quot;Receive window state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
+<div class="line"><a id="l01930" name="l01930"></a><span class="lineno"> 1930</span>       <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;m_rcv_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; sock-&gt;m_rcv_next_seq_num &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l01931" name="l01931"></a><span class="lineno"> 1931</span>       <span class="stringliteral">&quot;| &quot;</span> &lt;&lt; rcv_packets_with_gaps.size() &lt;&lt; <span class="stringliteral">&quot;:{...}.&quot;</span>);</div>
+<div class="line"><a id="l01932" name="l01932"></a><span class="lineno"> 1932</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l01933" name="l01933"></a><span class="lineno"> 1933</span>  }</div>
+<div class="line"><a id="l01934" name="l01934"></a><span class="lineno"> 1934</span>  <span class="comment">// else</span></div>
 <div class="line"><a id="l01935" name="l01935"></a><span class="lineno"> 1935</span> </div>
-<div class="line"><a id="l01936" name="l01936"></a><span class="lineno"> 1936</span>  vector&lt;string&gt; pkt_strs;</div>
-<div class="line"><a id="l01937" name="l01937"></a><span class="lineno"> 1937</span>  pkt_strs.reserve(rcv_packets_with_gaps.size());</div>
-<div class="line"><a id="l01938" name="l01938"></a><span class="lineno"> 1938</span> </div>
-<div class="line"><a id="l01939" name="l01939"></a><span class="lineno"> 1939</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> MAX_TO_SHOW = 100;</div>
-<div class="line"><a id="l01940" name="l01940"></a><span class="lineno"> 1940</span>  <span class="keywordtype">bool</span> skipped_some = <span class="keyword">false</span>;</div>
-<div class="line"><a id="l01941" name="l01941"></a><span class="lineno"> 1941</span>  <span class="keywordtype">size_t</span> count = 0;</div>
-<div class="line"><a id="l01942" name="l01942"></a><span class="lineno"> 1942</span> </div>
-<div class="line"><a id="l01943" name="l01943"></a><span class="lineno"> 1943</span>  <span class="keywordflow">for</span> (<a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ade41e13eb5176d833c7b1ea144612353">Peer_socket::Recvd_pkt_const_iter</a> pkt_it = rcv_packets_with_gaps.begin();</div>
-<div class="line"><a id="l01944" name="l01944"></a><span class="lineno"> 1944</span>       pkt_it != rcv_packets_with_gaps.end();</div>
-<div class="line"><a id="l01945" name="l01945"></a><span class="lineno"> 1945</span>       ++pkt_it)</div>
-<div class="line"><a id="l01946" name="l01946"></a><span class="lineno"> 1946</span>  {</div>
-<div class="line"><a id="l01947" name="l01947"></a><span class="lineno"> 1947</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> last_iteration = (count == rcv_packets_with_gaps.size() - 1);</div>
+<div class="line"><a id="l01936" name="l01936"></a><span class="lineno"> 1936</span>  <span class="comment">/* Construct full printout of the packets we&#39;ve received past the first unreceived gap.</span></div>
+<div class="line"><a id="l01937" name="l01937"></a><span class="lineno"> 1937</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01938" name="l01938"></a><span class="lineno"> 1938</span><span class="comment">   * Very verbose and slow!  Even so, if it gets beyond a certain size it&#39;s absurd, so skip some in</span></div>
+<div class="line"><a id="l01939" name="l01939"></a><span class="lineno"> 1939</span><span class="comment">   * that case even though DATA logging is sanctioned.  (That amount of data cannot really be useful</span></div>
+<div class="line"><a id="l01940" name="l01940"></a><span class="lineno"> 1940</span><span class="comment">   * in any case.) */</span></div>
+<div class="line"><a id="l01941" name="l01941"></a><span class="lineno"> 1941</span> </div>
+<div class="line"><a id="l01942" name="l01942"></a><span class="lineno"> 1942</span>  vector&lt;string&gt; pkt_strs;</div>
+<div class="line"><a id="l01943" name="l01943"></a><span class="lineno"> 1943</span>  pkt_strs.reserve(rcv_packets_with_gaps.size());</div>
+<div class="line"><a id="l01944" name="l01944"></a><span class="lineno"> 1944</span> </div>
+<div class="line"><a id="l01945" name="l01945"></a><span class="lineno"> 1945</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> MAX_TO_SHOW = 100;</div>
+<div class="line"><a id="l01946" name="l01946"></a><span class="lineno"> 1946</span>  <span class="keywordtype">bool</span> skipped_some = <span class="keyword">false</span>;</div>
+<div class="line"><a id="l01947" name="l01947"></a><span class="lineno"> 1947</span>  <span class="keywordtype">size_t</span> count = 0;</div>
 <div class="line"><a id="l01948" name="l01948"></a><span class="lineno"> 1948</span> </div>
-<div class="line"><a id="l01949" name="l01949"></a><span class="lineno"> 1949</span>    <span class="keywordflow">if</span> ((!skipped_some) &amp;&amp; (count &gt; MAX_TO_SHOW) &amp;&amp; (!last_iteration))</div>
-<div class="line"><a id="l01950" name="l01950"></a><span class="lineno"> 1950</span>    {</div>
-<div class="line"><a id="l01951" name="l01951"></a><span class="lineno"> 1951</span>      <span class="comment">// First packet past the limit we can print.  Start skipping mode.</span></div>
-<div class="line"><a id="l01952" name="l01952"></a><span class="lineno"> 1952</span>      skipped_some = <span class="keyword">true</span>;</div>
-<div class="line"><a id="l01953" name="l01953"></a><span class="lineno"> 1953</span>      ++count;</div>
-<div class="line"><a id="l01954" name="l01954"></a><span class="lineno"> 1954</span>      <span class="keywordflow">continue</span>;</div>
-<div class="line"><a id="l01955" name="l01955"></a><span class="lineno"> 1955</span>    }</div>
-<div class="line"><a id="l01956" name="l01956"></a><span class="lineno"> 1956</span>    <span class="comment">// else either we are in skipping more from before, or we are not in skipping mode.</span></div>
-<div class="line"><a id="l01957" name="l01957"></a><span class="lineno"> 1957</span> </div>
-<div class="line"><a id="l01958" name="l01958"></a><span class="lineno"> 1958</span>    <span class="keywordtype">string</span> pkt_str;</div>
-<div class="line"><a id="l01959" name="l01959"></a><span class="lineno"> 1959</span> </div>
-<div class="line"><a id="l01960" name="l01960"></a><span class="lineno"> 1960</span>    <span class="keywordflow">if</span> (skipped_some)</div>
-<div class="line"><a id="l01961" name="l01961"></a><span class="lineno"> 1961</span>    {</div>
-<div class="line"><a id="l01962" name="l01962"></a><span class="lineno"> 1962</span>      <span class="comment">// We are in skipping mode from before.</span></div>
-<div class="line"><a id="l01963" name="l01963"></a><span class="lineno"> 1963</span>      <span class="keywordflow">if</span> (!last_iteration)</div>
-<div class="line"><a id="l01964" name="l01964"></a><span class="lineno"> 1964</span>      {</div>
-<div class="line"><a id="l01965" name="l01965"></a><span class="lineno"> 1965</span>        <span class="comment">// Since it&#39;s not the last iteration, skip: print nothing.</span></div>
-<div class="line"><a id="l01966" name="l01966"></a><span class="lineno"> 1966</span>        ++count;</div>
-<div class="line"><a id="l01967" name="l01967"></a><span class="lineno"> 1967</span>        <span class="keywordflow">continue</span>;</div>
-<div class="line"><a id="l01968" name="l01968"></a><span class="lineno"> 1968</span>      }</div>
-<div class="line"><a id="l01969" name="l01969"></a><span class="lineno"> 1969</span>      <span class="comment">// else we are in skipping more from before, and this is the last iteration.  Print the placeholder.</span></div>
-<div class="line"><a id="l01970" name="l01970"></a><span class="lineno"> 1970</span>      pkt_str = <span class="stringliteral">&quot;[...skipped...] &quot;</span>;</div>
-<div class="line"><a id="l01971" name="l01971"></a><span class="lineno"> 1971</span>    }</div>
-<div class="line"><a id="l01972" name="l01972"></a><span class="lineno"> 1972</span>    <span class="comment">// Either we are not in skipping mode (just print the thing) or we are and it&#39;s last iteration (also print it).</span></div>
-<div class="line"><a id="l01973" name="l01973"></a><span class="lineno"> 1973</span> </div>
-<div class="line"><a id="l01974" name="l01974"></a><span class="lineno"> 1974</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> start, end;</div>
-<div class="line"><a id="l01975" name="l01975"></a><span class="lineno"> 1975</span>    get_seq_num_range(pkt_it, &amp;start, &amp;end);</div>
-<div class="line"><a id="l01976" name="l01976"></a><span class="lineno"> 1976</span> </div>
-<div class="line"><a id="l01977" name="l01977"></a><span class="lineno"> 1977</span>    <a class="code hl_function" href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">util::ostream_op_to_string</a>(&amp;pkt_str, <span class="charliteral">&#39;[&#39;</span>, start, <span class="stringliteral">&quot;, &quot;</span>, end, <span class="charliteral">&#39;)&#39;</span>);</div>
-<div class="line"><a id="l01978" name="l01978"></a><span class="lineno"> 1978</span>    pkt_strs.push_back(pkt_str);</div>
+<div class="line"><a id="l01949" name="l01949"></a><span class="lineno"> 1949</span>  <span class="keywordflow">for</span> (<a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ade41e13eb5176d833c7b1ea144612353">Peer_socket::Recvd_pkt_const_iter</a> pkt_it = rcv_packets_with_gaps.begin();</div>
+<div class="line"><a id="l01950" name="l01950"></a><span class="lineno"> 1950</span>       pkt_it != rcv_packets_with_gaps.end();</div>
+<div class="line"><a id="l01951" name="l01951"></a><span class="lineno"> 1951</span>       ++pkt_it)</div>
+<div class="line"><a id="l01952" name="l01952"></a><span class="lineno"> 1952</span>  {</div>
+<div class="line"><a id="l01953" name="l01953"></a><span class="lineno"> 1953</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> last_iteration = (count == rcv_packets_with_gaps.size() - 1);</div>
+<div class="line"><a id="l01954" name="l01954"></a><span class="lineno"> 1954</span> </div>
+<div class="line"><a id="l01955" name="l01955"></a><span class="lineno"> 1955</span>    <span class="keywordflow">if</span> ((!skipped_some) &amp;&amp; (count &gt; MAX_TO_SHOW) &amp;&amp; (!last_iteration))</div>
+<div class="line"><a id="l01956" name="l01956"></a><span class="lineno"> 1956</span>    {</div>
+<div class="line"><a id="l01957" name="l01957"></a><span class="lineno"> 1957</span>      <span class="comment">// First packet past the limit we can print.  Start skipping mode.</span></div>
+<div class="line"><a id="l01958" name="l01958"></a><span class="lineno"> 1958</span>      skipped_some = <span class="keyword">true</span>;</div>
+<div class="line"><a id="l01959" name="l01959"></a><span class="lineno"> 1959</span>      ++count;</div>
+<div class="line"><a id="l01960" name="l01960"></a><span class="lineno"> 1960</span>      <span class="keywordflow">continue</span>;</div>
+<div class="line"><a id="l01961" name="l01961"></a><span class="lineno"> 1961</span>    }</div>
+<div class="line"><a id="l01962" name="l01962"></a><span class="lineno"> 1962</span>    <span class="comment">// else either we are in skipping more from before, or we are not in skipping mode.</span></div>
+<div class="line"><a id="l01963" name="l01963"></a><span class="lineno"> 1963</span> </div>
+<div class="line"><a id="l01964" name="l01964"></a><span class="lineno"> 1964</span>    <span class="keywordtype">string</span> pkt_str;</div>
+<div class="line"><a id="l01965" name="l01965"></a><span class="lineno"> 1965</span> </div>
+<div class="line"><a id="l01966" name="l01966"></a><span class="lineno"> 1966</span>    <span class="keywordflow">if</span> (skipped_some)</div>
+<div class="line"><a id="l01967" name="l01967"></a><span class="lineno"> 1967</span>    {</div>
+<div class="line"><a id="l01968" name="l01968"></a><span class="lineno"> 1968</span>      <span class="comment">// We are in skipping mode from before.</span></div>
+<div class="line"><a id="l01969" name="l01969"></a><span class="lineno"> 1969</span>      <span class="keywordflow">if</span> (!last_iteration)</div>
+<div class="line"><a id="l01970" name="l01970"></a><span class="lineno"> 1970</span>      {</div>
+<div class="line"><a id="l01971" name="l01971"></a><span class="lineno"> 1971</span>        <span class="comment">// Since it&#39;s not the last iteration, skip: print nothing.</span></div>
+<div class="line"><a id="l01972" name="l01972"></a><span class="lineno"> 1972</span>        ++count;</div>
+<div class="line"><a id="l01973" name="l01973"></a><span class="lineno"> 1973</span>        <span class="keywordflow">continue</span>;</div>
+<div class="line"><a id="l01974" name="l01974"></a><span class="lineno"> 1974</span>      }</div>
+<div class="line"><a id="l01975" name="l01975"></a><span class="lineno"> 1975</span>      <span class="comment">// else we are in skipping more from before, and this is the last iteration.  Print the placeholder.</span></div>
+<div class="line"><a id="l01976" name="l01976"></a><span class="lineno"> 1976</span>      pkt_str = <span class="stringliteral">&quot;[...skipped...] &quot;</span>;</div>
+<div class="line"><a id="l01977" name="l01977"></a><span class="lineno"> 1977</span>    }</div>
+<div class="line"><a id="l01978" name="l01978"></a><span class="lineno"> 1978</span>    <span class="comment">// Either we are not in skipping mode (just print the thing) or we are and it&#39;s last iteration (also print it).</span></div>
 <div class="line"><a id="l01979" name="l01979"></a><span class="lineno"> 1979</span> </div>
-<div class="line"><a id="l01980" name="l01980"></a><span class="lineno"> 1980</span>    ++count;</div>
-<div class="line"><a id="l01981" name="l01981"></a><span class="lineno"> 1981</span>  } <span class="comment">// for (packets in rcv_packets_with_gaps)</span></div>
+<div class="line"><a id="l01980" name="l01980"></a><span class="lineno"> 1980</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> start, end;</div>
+<div class="line"><a id="l01981" name="l01981"></a><span class="lineno"> 1981</span>    get_seq_num_range(pkt_it, &amp;start, &amp;end);</div>
 <div class="line"><a id="l01982" name="l01982"></a><span class="lineno"> 1982</span> </div>
-<div class="line"><a id="l01983" name="l01983"></a><span class="lineno"> 1983</span>  <a class="code hl_define" href="log_8hpp.html#a5daa2b6d16edea74bb8bddc75f7fb801">FLOW_LOG_WITHOUT_CHECKING</a></div>
-<div class="line"><a id="l01984" name="l01984"></a><span class="lineno"> 1984</span>    (force_verbose_info_logging ? <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">log::Sev::S_INFO</a> : <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">log::Sev::S_DATA</a>,</div>
-<div class="line"><a id="l01985" name="l01985"></a><span class="lineno"> 1985</span>     <span class="stringliteral">&quot;Receive window state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
-<div class="line"><a id="l01986" name="l01986"></a><span class="lineno"> 1986</span>       <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;m_rcv_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; sock-&gt;m_rcv_next_seq_num &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l01987" name="l01987"></a><span class="lineno"> 1987</span>       <span class="stringliteral">&quot;| &quot;</span> &lt;&lt; rcv_packets_with_gaps.size() &lt;&lt; <span class="stringliteral">&quot;:{&quot;</span> &lt;&lt; join(pkt_strs, <span class="stringliteral">&quot; &quot;</span>) &lt;&lt; <span class="stringliteral">&quot;}.&quot;</span>);</div>
-<div class="line"><a id="l01988" name="l01988"></a><span class="lineno"> 1988</span>} <span class="comment">// Node::log_rcv_window()</span></div>
-<div class="line"><a id="l01989" name="l01989"></a><span class="lineno"> 1989</span> </div>
-<div class="line"><a id="l01990" name="l01990"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ab515b28350c43635728d6de0e37ccb94"> 1990</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ab515b28350c43635728d6de0e37ccb94">Node::handle_ack_to_established</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
-<div class="line"><a id="l01991" name="l01991"></a><span class="lineno"> 1991</span>                                     boost::shared_ptr&lt;const Ack_packet&gt; ack)</div>
-<div class="line"><a id="l01992" name="l01992"></a><span class="lineno"> 1992</span>{</div>
-<div class="line"><a id="l01993" name="l01993"></a><span class="lineno"> 1993</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l01994" name="l01994"></a><span class="lineno"> 1994</span> </div>
-<div class="line"><a id="l01995" name="l01995"></a><span class="lineno"> 1995</span>  <span class="comment">/* packet is an ACK, so its payload consists of at least m_rcv_wnd (the current advertised Receive</span></div>
-<div class="line"><a id="l01996" name="l01996"></a><span class="lineno"> 1996</span><span class="comment">   * buffer space on the receiver) and packet-&gt;m_rcv_acked_packets, which is basically a list of ZERO or</span></div>
-<div class="line"><a id="l01997" name="l01997"></a><span class="lineno"> 1997</span><span class="comment">   * more sequence numbers, each of which represents a packet we&#39;d (hopefully) sent that the</span></div>
-<div class="line"><a id="l01998" name="l01998"></a><span class="lineno"> 1998</span><span class="comment">   * receiver has received.  Naively we&#39;d just handle the window update and each individual ack here</span></div>
-<div class="line"><a id="l01999" name="l01999"></a><span class="lineno"> 1999</span><span class="comment">   * in a loop, then inform congestion control, etc. etc.  However there is an optimization to make.</span></div>
-<div class="line"><a id="l02000" name="l02000"></a><span class="lineno"> 2000</span><span class="comment">   * Suppose in the calling low_lvl_recv_and_handle() or async-part-of-async_wait_latency_then_handle_incoming()</span></div>
-<div class="line"><a id="l02001" name="l02001"></a><span class="lineno"> 2001</span><span class="comment">   * there are several more ACKs for this socket sock that will be received. This may well happen in</span></div>
-<div class="line"><a id="l02002" name="l02002"></a><span class="lineno"> 2002</span><span class="comment">   * high traffic; for instance the sender may have had too many individual acks for one ACK and</span></div>
-<div class="line"><a id="l02003" name="l02003"></a><span class="lineno"> 2003</span><span class="comment">   * thus sent several; or maybe the UDP net-stack had a few packets ready by the time boost.asio was</span></div>
-<div class="line"><a id="l02004" name="l02004"></a><span class="lineno"> 2004</span><span class="comment">   * free in thread W.  In this case, it is better to collect all the individuals acks in these</span></div>
-<div class="line"><a id="l02005" name="l02005"></a><span class="lineno"> 2005</span><span class="comment">   * several ACKs, and then handle them all at the same time.  Why?  Answer: it will update our</span></div>
-<div class="line"><a id="l02006" name="l02006"></a><span class="lineno"> 2006</span><span class="comment">   * sender state (what&#39;s ACKed, what&#39;s dropped) entirely in one go instead of doing it in two or</span></div>
-<div class="line"><a id="l02007" name="l02007"></a><span class="lineno"> 2007</span><span class="comment">   * more steps.  Because congestion control activities (&quot;on drop event,&quot; &quot;on acknowledgment&quot;) are</span></div>
-<div class="line"><a id="l02008" name="l02008"></a><span class="lineno"> 2008</span><span class="comment">   * performed after handling all the available acks, it gives a truer, simpler picture to the</span></div>
-<div class="line"><a id="l02009" name="l02009"></a><span class="lineno"> 2009</span><span class="comment">   * congestion control module, when compared to giving it one picture and then almost instantly</span></div>
-<div class="line"><a id="l02010" name="l02010"></a><span class="lineno"> 2010</span><span class="comment">   * giving it another. Another way to think of it is simply that since the different ACKs arrived</span></div>
-<div class="line"><a id="l02011" name="l02011"></a><span class="lineno"> 2011</span><span class="comment">   * at the same time, and all an ACK is is a collection of individual acks that could fit into the</span></div>
-<div class="line"><a id="l02012" name="l02012"></a><span class="lineno"> 2012</span><span class="comment">   * ACK packet, then conceptually this is no different from being one super-ACK with all the</span></div>
-<div class="line"><a id="l02013" name="l02013"></a><span class="lineno"> 2013</span><span class="comment">   * individual acks contained in it.  Therefore it is at least not worse.</span></div>
-<div class="line"><a id="l02014" name="l02014"></a><span class="lineno"> 2014</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02015" name="l02015"></a><span class="lineno"> 2015</span><span class="comment">   * (In addition, m_rcv_wnd also affects the decision on whether to send more data over the wire,</span></div>
-<div class="line"><a id="l02016" name="l02016"></a><span class="lineno"> 2016</span><span class="comment">   * as can_send() is part of that same algorithm.)</span></div>
-<div class="line"><a id="l02017" name="l02017"></a><span class="lineno"> 2017</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02018" name="l02018"></a><span class="lineno"> 2018</span><span class="comment">   * Caveat: The above is rock-solid if the different ACKs being combined were contiguous to each</span></div>
-<div class="line"><a id="l02019" name="l02019"></a><span class="lineno"> 2019</span><span class="comment">   * other chronologically.  What if there is another type of packet between some two of these ACKs?</span></div>
-<div class="line"><a id="l02020" name="l02020"></a><span class="lineno"> 2020</span><span class="comment">   * Well, it depends on what it is.  Ignoring the misbehaving/duplicate/whatever packets (SYN, for</span></div>
-<div class="line"><a id="l02021" name="l02021"></a><span class="lineno"> 2021</span><span class="comment">   * example) -- which will just be discarded basically -- let&#39;s consider the possibilities.  If</span></div>
-<div class="line"><a id="l02022" name="l02022"></a><span class="lineno"> 2022</span><span class="comment">   * the packet is DATA, then it is irrelevant; NetFlow (like TCP) is full-duplex (actually more so,</span></div>
-<div class="line"><a id="l02023" name="l02023"></a><span class="lineno"> 2023</span><span class="comment">   * since there&#39;s no DATA+ACK piggy-backing), therefore the micro-ordering of traffic in opposite</span></div>
-<div class="line"><a id="l02024" name="l02024"></a><span class="lineno"> 2024</span><span class="comment">   * directions is irrelevant.  If the packet is RST, then that means the socket will get closed (no</span></div>
-<div class="line"><a id="l02025" name="l02025"></a><span class="lineno"> 2025</span><span class="comment">   * longer ESTABLISHED) before we get a chance to process any of the individual acknowledgments.</span></div>
-<div class="line"><a id="l02026" name="l02026"></a><span class="lineno"> 2026</span><span class="comment">   * However, that is more or less OK; if the other side sent RST, then they won&#39;t accept any</span></div>
-<div class="line"><a id="l02027" name="l02027"></a><span class="lineno"> 2027</span><span class="comment">   * further data we may send after processing the acknowledgments anyway.  The only other</span></div>
-<div class="line"><a id="l02028" name="l02028"></a><span class="lineno"> 2028</span><span class="comment">   * possibility has to with graceful close, but that is not yet implemented.</span></div>
-<div class="line"><a id="l02029" name="l02029"></a><span class="lineno"> 2029</span><span class="comment">   * @todo Revisit this when graceful close is implemented.  (Preliminary idea: accumulate DATA and</span></div>
-<div class="line"><a id="l02030" name="l02030"></a><span class="lineno"> 2030</span><span class="comment">   * FIN/etc. packets and always handle them after handling ACKs.  Then the DATA/FIN stream will not</span></div>
-<div class="line"><a id="l02031" name="l02031"></a><span class="lineno"> 2031</span><span class="comment">   * have a chance to disrupt (by initiating closing the connection) the ACK handling, while the ACK</span></div>
-<div class="line"><a id="l02032" name="l02032"></a><span class="lineno"> 2032</span><span class="comment">   * handling should have no bearing on the DATA/FIN stream.)</span></div>
-<div class="line"><a id="l02033" name="l02033"></a><span class="lineno"> 2033</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02034" name="l02034"></a><span class="lineno"> 2034</span><span class="comment">   * So, let&#39;s accumulate the individual acks in packet-&gt;m_rcv_acked_packets into a big</span></div>
-<div class="line"><a id="l02035" name="l02035"></a><span class="lineno"> 2035</span><span class="comment">   * sock-&gt;m_rcv_acked_packets to be handled from perform_accumulated_on_recv_tasks() at the end of the</span></div>
-<div class="line"><a id="l02036" name="l02036"></a><span class="lineno"> 2036</span><span class="comment">   * current handler.  Similarly save m_rcv_wnd into sock-&gt;m_pending_rcv_wnd.  To let that method</span></div>
-<div class="line"><a id="l02037" name="l02037"></a><span class="lineno"> 2037</span><span class="comment">   * know sock has a new m_pending_rcv_wnd and possibly non-empty sock-&gt;m_rcv_acked_packets, insert sock</span></div>
-<div class="line"><a id="l02038" name="l02038"></a><span class="lineno"> 2038</span><span class="comment">   * into m_socks_with_accumulated_acks. */</span></div>
-<div class="line"><a id="l02039" name="l02039"></a><span class="lineno"> 2039</span> </div>
-<div class="line"><a id="l02040" name="l02040"></a><span class="lineno"> 2040</span>  <span class="comment">/* Note: We&#39;re not setting the actual sock-&gt;m_snd_remote_rcv_wnd until</span></div>
-<div class="line"><a id="l02041" name="l02041"></a><span class="lineno"> 2041</span><span class="comment">   * perform_accumulated_on_recv_tasks().</span></div>
-<div class="line"><a id="l02042" name="l02042"></a><span class="lineno"> 2042</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02043" name="l02043"></a><span class="lineno"> 2043</span><span class="comment">   * Also note: the latest ACK to arrive in this receive handler will contain the most up-to-date</span></div>
-<div class="line"><a id="l02044" name="l02044"></a><span class="lineno"> 2044</span><span class="comment">   * rcv_wnd value (previous ones are overwritten by this). */</span></div>
-<div class="line"><a id="l02045" name="l02045"></a><span class="lineno"> 2045</span>  sock-&gt;m_snd_pending_rcv_wnd = ack-&gt;m_rcv_wnd;</div>
-<div class="line"><a id="l02046" name="l02046"></a><span class="lineno"> 2046</span> </div>
-<div class="line"><a id="l02047" name="l02047"></a><span class="lineno"> 2047</span>  <span class="comment">// It&#39;s a (ref-counted) pointer copy. Note there may be 0 elements there, if it&#39;s just an m_rcv_wnd update alone.</span></div>
-<div class="line"><a id="l02048" name="l02048"></a><span class="lineno"> 2048</span>  sock-&gt;m_rcv_acked_packets.insert(sock-&gt;m_rcv_acked_packets.end(), <span class="comment">// Append.</span></div>
-<div class="line"><a id="l02049" name="l02049"></a><span class="lineno"> 2049</span>                                   ack-&gt;m_rcv_acked_packets.begin(), ack-&gt;m_rcv_acked_packets.end());</div>
-<div class="line"><a id="l02050" name="l02050"></a><span class="lineno"> 2050</span>  m_socks_with_accumulated_acks.insert(sock); <span class="comment">// May already be in there.</span></div>
-<div class="line"><a id="l02051" name="l02051"></a><span class="lineno"> 2051</span> </div>
-<div class="line"><a id="l02052" name="l02052"></a><span class="lineno"> 2052</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
-<div class="line"><a id="l02053" name="l02053"></a><span class="lineno"> 2053</span>                 <span class="stringliteral">&quot;Received and accumulated [&quot;</span> &lt;&lt; ack-&gt;m_type_ostream_manip &lt;&lt; <span class="stringliteral">&quot;] with &quot;</span></div>
-<div class="line"><a id="l02054" name="l02054"></a><span class="lineno"> 2054</span>                 <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; ack-&gt;m_rcv_acked_packets.size() &lt;&lt; <span class="stringliteral">&quot;] individual acknowledgments &quot;</span></div>
-<div class="line"><a id="l02055" name="l02055"></a><span class="lineno"> 2055</span>                 <span class="stringliteral">&quot;and rcv_wnd = [&quot;</span> &lt;&lt; ack-&gt;m_rcv_wnd &lt;&lt; <span class="stringliteral">&quot;]; total for this socket in this &quot;</span></div>
-<div class="line"><a id="l02056" name="l02056"></a><span class="lineno"> 2056</span>                 <span class="stringliteral">&quot;receive handler is [&quot;</span> &lt;&lt; sock-&gt;m_rcv_acked_packets.size() &lt;&lt; <span class="stringliteral">&quot;] individual acknowledgments.&quot;</span>);</div>
+<div class="line"><a id="l01983" name="l01983"></a><span class="lineno"> 1983</span>    <a class="code hl_function" href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">util::ostream_op_to_string</a>(&amp;pkt_str, <span class="charliteral">&#39;[&#39;</span>, start, <span class="stringliteral">&quot;, &quot;</span>, end, <span class="charliteral">&#39;)&#39;</span>);</div>
+<div class="line"><a id="l01984" name="l01984"></a><span class="lineno"> 1984</span>    pkt_strs.push_back(pkt_str);</div>
+<div class="line"><a id="l01985" name="l01985"></a><span class="lineno"> 1985</span> </div>
+<div class="line"><a id="l01986" name="l01986"></a><span class="lineno"> 1986</span>    ++count;</div>
+<div class="line"><a id="l01987" name="l01987"></a><span class="lineno"> 1987</span>  } <span class="comment">// for (packets in rcv_packets_with_gaps)</span></div>
+<div class="line"><a id="l01988" name="l01988"></a><span class="lineno"> 1988</span> </div>
+<div class="line"><a id="l01989" name="l01989"></a><span class="lineno"> 1989</span>  <a class="code hl_define" href="log_8hpp.html#a5daa2b6d16edea74bb8bddc75f7fb801">FLOW_LOG_WITHOUT_CHECKING</a></div>
+<div class="line"><a id="l01990" name="l01990"></a><span class="lineno"> 1990</span>    (force_verbose_info_logging ? <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">log::Sev::S_INFO</a> : <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">log::Sev::S_DATA</a>,</div>
+<div class="line"><a id="l01991" name="l01991"></a><span class="lineno"> 1991</span>     <span class="stringliteral">&quot;Receive window state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
+<div class="line"><a id="l01992" name="l01992"></a><span class="lineno"> 1992</span>       <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;m_rcv_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; sock-&gt;m_rcv_next_seq_num &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l01993" name="l01993"></a><span class="lineno"> 1993</span>       <span class="stringliteral">&quot;| &quot;</span> &lt;&lt; rcv_packets_with_gaps.size() &lt;&lt; <span class="stringliteral">&quot;:{&quot;</span> &lt;&lt; join(pkt_strs, <span class="stringliteral">&quot; &quot;</span>) &lt;&lt; <span class="stringliteral">&quot;}.&quot;</span>);</div>
+<div class="line"><a id="l01994" name="l01994"></a><span class="lineno"> 1994</span>} <span class="comment">// Node::log_rcv_window()</span></div>
+<div class="line"><a id="l01995" name="l01995"></a><span class="lineno"> 1995</span> </div>
+<div class="line"><a id="l01996" name="l01996"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ab515b28350c43635728d6de0e37ccb94"> 1996</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ab515b28350c43635728d6de0e37ccb94">Node::handle_ack_to_established</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
+<div class="line"><a id="l01997" name="l01997"></a><span class="lineno"> 1997</span>                                     boost::shared_ptr&lt;const Ack_packet&gt; ack)</div>
+<div class="line"><a id="l01998" name="l01998"></a><span class="lineno"> 1998</span>{</div>
+<div class="line"><a id="l01999" name="l01999"></a><span class="lineno"> 1999</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l02000" name="l02000"></a><span class="lineno"> 2000</span> </div>
+<div class="line"><a id="l02001" name="l02001"></a><span class="lineno"> 2001</span>  <span class="comment">/* packet is an ACK, so its payload consists of at least m_rcv_wnd (the current advertised Receive</span></div>
+<div class="line"><a id="l02002" name="l02002"></a><span class="lineno"> 2002</span><span class="comment">   * buffer space on the receiver) and packet-&gt;m_rcv_acked_packets, which is basically a list of ZERO or</span></div>
+<div class="line"><a id="l02003" name="l02003"></a><span class="lineno"> 2003</span><span class="comment">   * more sequence numbers, each of which represents a packet we&#39;d (hopefully) sent that the</span></div>
+<div class="line"><a id="l02004" name="l02004"></a><span class="lineno"> 2004</span><span class="comment">   * receiver has received.  Naively we&#39;d just handle the window update and each individual ack here</span></div>
+<div class="line"><a id="l02005" name="l02005"></a><span class="lineno"> 2005</span><span class="comment">   * in a loop, then inform congestion control, etc. etc.  However there is an optimization to make.</span></div>
+<div class="line"><a id="l02006" name="l02006"></a><span class="lineno"> 2006</span><span class="comment">   * Suppose in the calling low_lvl_recv_and_handle() or async-part-of-async_wait_latency_then_handle_incoming()</span></div>
+<div class="line"><a id="l02007" name="l02007"></a><span class="lineno"> 2007</span><span class="comment">   * there are several more ACKs for this socket sock that will be received. This may well happen in</span></div>
+<div class="line"><a id="l02008" name="l02008"></a><span class="lineno"> 2008</span><span class="comment">   * high traffic; for instance the sender may have had too many individual acks for one ACK and</span></div>
+<div class="line"><a id="l02009" name="l02009"></a><span class="lineno"> 2009</span><span class="comment">   * thus sent several; or maybe the UDP net-stack had a few packets ready by the time boost.asio was</span></div>
+<div class="line"><a id="l02010" name="l02010"></a><span class="lineno"> 2010</span><span class="comment">   * free in thread W.  In this case, it is better to collect all the individuals acks in these</span></div>
+<div class="line"><a id="l02011" name="l02011"></a><span class="lineno"> 2011</span><span class="comment">   * several ACKs, and then handle them all at the same time.  Why?  Answer: it will update our</span></div>
+<div class="line"><a id="l02012" name="l02012"></a><span class="lineno"> 2012</span><span class="comment">   * sender state (what&#39;s ACKed, what&#39;s dropped) entirely in one go instead of doing it in two or</span></div>
+<div class="line"><a id="l02013" name="l02013"></a><span class="lineno"> 2013</span><span class="comment">   * more steps.  Because congestion control activities (&quot;on drop event,&quot; &quot;on acknowledgment&quot;) are</span></div>
+<div class="line"><a id="l02014" name="l02014"></a><span class="lineno"> 2014</span><span class="comment">   * performed after handling all the available acks, it gives a truer, simpler picture to the</span></div>
+<div class="line"><a id="l02015" name="l02015"></a><span class="lineno"> 2015</span><span class="comment">   * congestion control module, when compared to giving it one picture and then almost instantly</span></div>
+<div class="line"><a id="l02016" name="l02016"></a><span class="lineno"> 2016</span><span class="comment">   * giving it another. Another way to think of it is simply that since the different ACKs arrived</span></div>
+<div class="line"><a id="l02017" name="l02017"></a><span class="lineno"> 2017</span><span class="comment">   * at the same time, and all an ACK is is a collection of individual acks that could fit into the</span></div>
+<div class="line"><a id="l02018" name="l02018"></a><span class="lineno"> 2018</span><span class="comment">   * ACK packet, then conceptually this is no different from being one super-ACK with all the</span></div>
+<div class="line"><a id="l02019" name="l02019"></a><span class="lineno"> 2019</span><span class="comment">   * individual acks contained in it.  Therefore it is at least not worse.</span></div>
+<div class="line"><a id="l02020" name="l02020"></a><span class="lineno"> 2020</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02021" name="l02021"></a><span class="lineno"> 2021</span><span class="comment">   * (In addition, m_rcv_wnd also affects the decision on whether to send more data over the wire,</span></div>
+<div class="line"><a id="l02022" name="l02022"></a><span class="lineno"> 2022</span><span class="comment">   * as can_send() is part of that same algorithm.)</span></div>
+<div class="line"><a id="l02023" name="l02023"></a><span class="lineno"> 2023</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02024" name="l02024"></a><span class="lineno"> 2024</span><span class="comment">   * Caveat: The above is rock-solid if the different ACKs being combined were contiguous to each</span></div>
+<div class="line"><a id="l02025" name="l02025"></a><span class="lineno"> 2025</span><span class="comment">   * other chronologically.  What if there is another type of packet between some two of these ACKs?</span></div>
+<div class="line"><a id="l02026" name="l02026"></a><span class="lineno"> 2026</span><span class="comment">   * Well, it depends on what it is.  Ignoring the misbehaving/duplicate/whatever packets (SYN, for</span></div>
+<div class="line"><a id="l02027" name="l02027"></a><span class="lineno"> 2027</span><span class="comment">   * example) -- which will just be discarded basically -- let&#39;s consider the possibilities.  If</span></div>
+<div class="line"><a id="l02028" name="l02028"></a><span class="lineno"> 2028</span><span class="comment">   * the packet is DATA, then it is irrelevant; NetFlow (like TCP) is full-duplex (actually more so,</span></div>
+<div class="line"><a id="l02029" name="l02029"></a><span class="lineno"> 2029</span><span class="comment">   * since there&#39;s no DATA+ACK piggy-backing), therefore the micro-ordering of traffic in opposite</span></div>
+<div class="line"><a id="l02030" name="l02030"></a><span class="lineno"> 2030</span><span class="comment">   * directions is irrelevant.  If the packet is RST, then that means the socket will get closed (no</span></div>
+<div class="line"><a id="l02031" name="l02031"></a><span class="lineno"> 2031</span><span class="comment">   * longer ESTABLISHED) before we get a chance to process any of the individual acknowledgments.</span></div>
+<div class="line"><a id="l02032" name="l02032"></a><span class="lineno"> 2032</span><span class="comment">   * However, that is more or less OK; if the other side sent RST, then they won&#39;t accept any</span></div>
+<div class="line"><a id="l02033" name="l02033"></a><span class="lineno"> 2033</span><span class="comment">   * further data we may send after processing the acknowledgments anyway.  The only other</span></div>
+<div class="line"><a id="l02034" name="l02034"></a><span class="lineno"> 2034</span><span class="comment">   * possibility has to with graceful close, but that is not yet implemented.</span></div>
+<div class="line"><a id="l02035" name="l02035"></a><span class="lineno"> 2035</span><span class="comment">   * @todo Revisit this when graceful close is implemented.  (Preliminary idea: accumulate DATA and</span></div>
+<div class="line"><a id="l02036" name="l02036"></a><span class="lineno"> 2036</span><span class="comment">   * FIN/etc. packets and always handle them after handling ACKs.  Then the DATA/FIN stream will not</span></div>
+<div class="line"><a id="l02037" name="l02037"></a><span class="lineno"> 2037</span><span class="comment">   * have a chance to disrupt (by initiating closing the connection) the ACK handling, while the ACK</span></div>
+<div class="line"><a id="l02038" name="l02038"></a><span class="lineno"> 2038</span><span class="comment">   * handling should have no bearing on the DATA/FIN stream.)</span></div>
+<div class="line"><a id="l02039" name="l02039"></a><span class="lineno"> 2039</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02040" name="l02040"></a><span class="lineno"> 2040</span><span class="comment">   * So, let&#39;s accumulate the individual acks in packet-&gt;m_rcv_acked_packets into a big</span></div>
+<div class="line"><a id="l02041" name="l02041"></a><span class="lineno"> 2041</span><span class="comment">   * sock-&gt;m_rcv_acked_packets to be handled from perform_accumulated_on_recv_tasks() at the end of the</span></div>
+<div class="line"><a id="l02042" name="l02042"></a><span class="lineno"> 2042</span><span class="comment">   * current handler.  Similarly save m_rcv_wnd into sock-&gt;m_pending_rcv_wnd.  To let that method</span></div>
+<div class="line"><a id="l02043" name="l02043"></a><span class="lineno"> 2043</span><span class="comment">   * know sock has a new m_pending_rcv_wnd and possibly non-empty sock-&gt;m_rcv_acked_packets, insert sock</span></div>
+<div class="line"><a id="l02044" name="l02044"></a><span class="lineno"> 2044</span><span class="comment">   * into m_socks_with_accumulated_acks. */</span></div>
+<div class="line"><a id="l02045" name="l02045"></a><span class="lineno"> 2045</span> </div>
+<div class="line"><a id="l02046" name="l02046"></a><span class="lineno"> 2046</span>  <span class="comment">/* Note: We&#39;re not setting the actual sock-&gt;m_snd_remote_rcv_wnd until</span></div>
+<div class="line"><a id="l02047" name="l02047"></a><span class="lineno"> 2047</span><span class="comment">   * perform_accumulated_on_recv_tasks().</span></div>
+<div class="line"><a id="l02048" name="l02048"></a><span class="lineno"> 2048</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02049" name="l02049"></a><span class="lineno"> 2049</span><span class="comment">   * Also note: the latest ACK to arrive in this receive handler will contain the most up-to-date</span></div>
+<div class="line"><a id="l02050" name="l02050"></a><span class="lineno"> 2050</span><span class="comment">   * rcv_wnd value (previous ones are overwritten by this). */</span></div>
+<div class="line"><a id="l02051" name="l02051"></a><span class="lineno"> 2051</span>  sock-&gt;m_snd_pending_rcv_wnd = ack-&gt;m_rcv_wnd;</div>
+<div class="line"><a id="l02052" name="l02052"></a><span class="lineno"> 2052</span> </div>
+<div class="line"><a id="l02053" name="l02053"></a><span class="lineno"> 2053</span>  <span class="comment">// It&#39;s a (ref-counted) pointer copy. Note there may be 0 elements there, if it&#39;s just an m_rcv_wnd update alone.</span></div>
+<div class="line"><a id="l02054" name="l02054"></a><span class="lineno"> 2054</span>  sock-&gt;m_rcv_acked_packets.insert(sock-&gt;m_rcv_acked_packets.end(), <span class="comment">// Append.</span></div>
+<div class="line"><a id="l02055" name="l02055"></a><span class="lineno"> 2055</span>                                   ack-&gt;m_rcv_acked_packets.begin(), ack-&gt;m_rcv_acked_packets.end());</div>
+<div class="line"><a id="l02056" name="l02056"></a><span class="lineno"> 2056</span>  m_socks_with_accumulated_acks.insert(sock); <span class="comment">// May already be in there.</span></div>
 <div class="line"><a id="l02057" name="l02057"></a><span class="lineno"> 2057</span> </div>
-<div class="line"><a id="l02058" name="l02058"></a><span class="lineno"> 2058</span>  sock-&gt;m_snd_stats.received_low_lvl_ack_packet(ack-&gt;m_rcv_acked_packets.empty());</div>
-<div class="line"><a id="l02059" name="l02059"></a><span class="lineno"> 2059</span>} <span class="comment">// Node::handle_ack_to_established()</span></div>
-<div class="line"><a id="l02060" name="l02060"></a><span class="lineno"> 2060</span> </div>
-<div class="line"><a id="l02061" name="l02061"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a136d9ccd25634cee2955ea79ae829006"> 2061</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a136d9ccd25634cee2955ea79ae829006">Node::handle_accumulated_acks</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
-<div class="line"><a id="l02062" name="l02062"></a><span class="lineno"> 2062</span>{</div>
-<div class="line"><a id="l02063" name="l02063"></a><span class="lineno"> 2063</span>  <span class="keyword">using </span>std::min;</div>
-<div class="line"><a id="l02064" name="l02064"></a><span class="lineno"> 2064</span>  <span class="keyword">using </span>std::vector;</div>
-<div class="line"><a id="l02065" name="l02065"></a><span class="lineno"> 2065</span>  <span class="keyword">using </span>boost::tuple;</div>
-<div class="line"><a id="l02066" name="l02066"></a><span class="lineno"> 2066</span>  <span class="keyword">using </span>boost::unordered_set;</div>
-<div class="line"><a id="l02067" name="l02067"></a><span class="lineno"> 2067</span>  <span class="keyword">using </span>boost::chrono::round;</div>
-<div class="line"><a id="l02068" name="l02068"></a><span class="lineno"> 2068</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
-<div class="line"><a id="l02069" name="l02069"></a><span class="lineno"> 2069</span>  <span class="keyword">using </span>boost::chrono::seconds;</div>
-<div class="line"><a id="l02070" name="l02070"></a><span class="lineno"> 2070</span> </div>
-<div class="line"><a id="l02071" name="l02071"></a><span class="lineno"> 2071</span>  <span class="comment">/* This is a complex method that does many things.  Therefore readability is hard to accomplish, as the logic</span></div>
-<div class="line"><a id="l02072" name="l02072"></a><span class="lineno"> 2072</span><span class="comment">   * makes sense when writing it, but the big picture is hard to see when reading it.  The necessary heavy commenting</span></div>
-<div class="line"><a id="l02073" name="l02073"></a><span class="lineno"> 2073</span><span class="comment">   * further increases the size and therefore (along that dimension) decreases readability.  For these reasons,</span></div>
-<div class="line"><a id="l02074" name="l02074"></a><span class="lineno"> 2074</span><span class="comment">   * many logically distinct parts were placed into helper methods -- not to increase code reuse but to help</span></div>
-<div class="line"><a id="l02075" name="l02075"></a><span class="lineno"> 2075</span><span class="comment">   * the aforementioned consideration. */</span></div>
+<div class="line"><a id="l02058" name="l02058"></a><span class="lineno"> 2058</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
+<div class="line"><a id="l02059" name="l02059"></a><span class="lineno"> 2059</span>                 <span class="stringliteral">&quot;Received and accumulated [&quot;</span> &lt;&lt; ack-&gt;m_type_ostream_manip &lt;&lt; <span class="stringliteral">&quot;] with &quot;</span></div>
+<div class="line"><a id="l02060" name="l02060"></a><span class="lineno"> 2060</span>                 <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; ack-&gt;m_rcv_acked_packets.size() &lt;&lt; <span class="stringliteral">&quot;] individual acknowledgments &quot;</span></div>
+<div class="line"><a id="l02061" name="l02061"></a><span class="lineno"> 2061</span>                 <span class="stringliteral">&quot;and rcv_wnd = [&quot;</span> &lt;&lt; ack-&gt;m_rcv_wnd &lt;&lt; <span class="stringliteral">&quot;]; total for this socket in this &quot;</span></div>
+<div class="line"><a id="l02062" name="l02062"></a><span class="lineno"> 2062</span>                 <span class="stringliteral">&quot;receive handler is [&quot;</span> &lt;&lt; sock-&gt;m_rcv_acked_packets.size() &lt;&lt; <span class="stringliteral">&quot;] individual acknowledgments.&quot;</span>);</div>
+<div class="line"><a id="l02063" name="l02063"></a><span class="lineno"> 2063</span> </div>
+<div class="line"><a id="l02064" name="l02064"></a><span class="lineno"> 2064</span>  sock-&gt;m_snd_stats.received_low_lvl_ack_packet(ack-&gt;m_rcv_acked_packets.empty());</div>
+<div class="line"><a id="l02065" name="l02065"></a><span class="lineno"> 2065</span>} <span class="comment">// Node::handle_ack_to_established()</span></div>
+<div class="line"><a id="l02066" name="l02066"></a><span class="lineno"> 2066</span> </div>
+<div class="line"><a id="l02067" name="l02067"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a136d9ccd25634cee2955ea79ae829006"> 2067</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a136d9ccd25634cee2955ea79ae829006">Node::handle_accumulated_acks</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
+<div class="line"><a id="l02068" name="l02068"></a><span class="lineno"> 2068</span>{</div>
+<div class="line"><a id="l02069" name="l02069"></a><span class="lineno"> 2069</span>  <span class="keyword">using </span>std::min;</div>
+<div class="line"><a id="l02070" name="l02070"></a><span class="lineno"> 2070</span>  <span class="keyword">using </span>std::vector;</div>
+<div class="line"><a id="l02071" name="l02071"></a><span class="lineno"> 2071</span>  <span class="keyword">using </span>boost::tuple;</div>
+<div class="line"><a id="l02072" name="l02072"></a><span class="lineno"> 2072</span>  <span class="keyword">using </span>boost::unordered_set;</div>
+<div class="line"><a id="l02073" name="l02073"></a><span class="lineno"> 2073</span>  <span class="keyword">using </span>boost::chrono::round;</div>
+<div class="line"><a id="l02074" name="l02074"></a><span class="lineno"> 2074</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
+<div class="line"><a id="l02075" name="l02075"></a><span class="lineno"> 2075</span>  <span class="keyword">using </span>boost::chrono::seconds;</div>
 <div class="line"><a id="l02076" name="l02076"></a><span class="lineno"> 2076</span> </div>
-<div class="line"><a id="l02077" name="l02077"></a><span class="lineno"> 2077</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l02078" name="l02078"></a><span class="lineno"> 2078</span> </div>
-<div class="line"><a id="l02079" name="l02079"></a><span class="lineno"> 2079</span>  log_accumulated_acks(sock);</div>
-<div class="line"><a id="l02080" name="l02080"></a><span class="lineno"> 2080</span>  <span class="comment">// Below TRACE messages omit most of the just-logged detail, since it&#39;s already logged now.</span></div>
-<div class="line"><a id="l02081" name="l02081"></a><span class="lineno"> 2081</span> </div>
-<div class="line"><a id="l02082" name="l02082"></a><span class="lineno"> 2082</span>  <span class="comment">// For brevity and a little speed:</span></div>
-<div class="line"><a id="l02083" name="l02083"></a><span class="lineno"> 2083</span>  <span class="keyword">using </span>Acks = vector&lt;Ack_packet::Individual_ack::Ptr&gt;;</div>
-<div class="line"><a id="l02084" name="l02084"></a><span class="lineno"> 2084</span>  Acks&amp; acked_packets = sock-&gt;m_rcv_acked_packets;</div>
-<div class="line"><a id="l02085" name="l02085"></a><span class="lineno"> 2085</span>  <span class="comment">/* To not put already-handled acknowledgments up for handling again in the next run of this method</span></div>
-<div class="line"><a id="l02086" name="l02086"></a><span class="lineno"> 2086</span><span class="comment">   * (which would be wrong), we must clear acked_packets before exiting this method.  To be safe,</span></div>
-<div class="line"><a id="l02087" name="l02087"></a><span class="lineno"> 2087</span><span class="comment">   * make sure acked_packets.clear() runs no matter how this method exits. */</span></div>
-<div class="line"><a id="l02088" name="l02088"></a><span class="lineno"> 2088</span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#ab22fd89e165a9e6deaa174bc0dfdc8de">util::Auto_cleanup</a> cleanup = <a class="code hl_function" href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">util::setup_auto_cleanup</a>([&amp;]() { acked_packets.clear(); });</div>
-<div class="line"><a id="l02089" name="l02089"></a><span class="lineno"> 2089</span> </div>
-<div class="line"><a id="l02090" name="l02090"></a><span class="lineno"> 2090</span>  <span class="comment">/* Handle all the acknowledgments we&#39;ve received in this receive handler.  Background on the</span></div>
-<div class="line"><a id="l02091" name="l02091"></a><span class="lineno"> 2091</span><span class="comment">   * accumulation tactic is in handle_ack_to_established().  As explained in that method, some</span></div>
-<div class="line"><a id="l02092" name="l02092"></a><span class="lineno"> 2092</span><span class="comment">   * packet between the first and last ACK received in this handler may have changed state away from</span></div>
-<div class="line"><a id="l02093" name="l02093"></a><span class="lineno"> 2093</span><span class="comment">   * ESTABLISHED.  For example, there could have been an RST.  Check for that. */</span></div>
-<div class="line"><a id="l02094" name="l02094"></a><span class="lineno"> 2094</span>  <span class="keywordflow">if</span> (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>)</div>
-<div class="line"><a id="l02095" name="l02095"></a><span class="lineno"> 2095</span>  {</div>
-<div class="line"><a id="l02096" name="l02096"></a><span class="lineno"> 2096</span>    <span class="comment">// Rare/interesting enough for INFO.</span></div>
-<div class="line"><a id="l02097" name="l02097"></a><span class="lineno"> 2097</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
-<div class="line"><a id="l02098" name="l02098"></a><span class="lineno"> 2098</span>                  <span class="stringliteral">&quot;Accumulated [ACK] packets with [&quot;</span> &lt;&lt; acked_packets.size() &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l02099" name="l02099"></a><span class="lineno"> 2099</span>                  <span class="stringliteral">&quot;individual acknowledgments, but state is now [&quot;</span> &lt;&lt; sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;]; ignoring ACKs forever.&quot;</span>);</div>
-<div class="line"><a id="l02100" name="l02100"></a><span class="lineno"> 2100</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l02101" name="l02101"></a><span class="lineno"> 2101</span>  }</div>
-<div class="line"><a id="l02102" name="l02102"></a><span class="lineno"> 2102</span>  <span class="comment">// else OK.  Handle the accumulated acknowledgments.</span></div>
-<div class="line"><a id="l02103" name="l02103"></a><span class="lineno"> 2103</span>  assert(sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>);</div>
-<div class="line"><a id="l02104" name="l02104"></a><span class="lineno"> 2104</span> </div>
-<div class="line"><a id="l02105" name="l02105"></a><span class="lineno"> 2105</span>  <span class="comment">/* The individual acknowledgments are (sequence number, ACK delay in unit X, retransmission ID)</span></div>
-<div class="line"><a id="l02106" name="l02106"></a><span class="lineno"> 2106</span><span class="comment">   * triples, where the latter is always zero unless retransmission is enabled.  Let&#39;s handle each</span></div>
-<div class="line"><a id="l02107" name="l02107"></a><span class="lineno"> 2107</span><span class="comment">   * one by updating m_snd_flying_pkts* (i.e., removing that packet from m_snd_flying_pkts*) and</span></div>
-<div class="line"><a id="l02108" name="l02108"></a><span class="lineno"> 2108</span><span class="comment">   * informing congestion control.  Before continuing reading the method please look at the large</span></div>
-<div class="line"><a id="l02109" name="l02109"></a><span class="lineno"> 2109</span><span class="comment">   * comments for Peer_socket::m_snd_flying_pkts_by_{sent_when|seq_num} (drawing a diagram might also help).</span></div>
-<div class="line"><a id="l02110" name="l02110"></a><span class="lineno"> 2110</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02111" name="l02111"></a><span class="lineno"> 2111</span><span class="comment">   * Before continuing, quick discussion of corner cases:</span></div>
-<div class="line"><a id="l02112" name="l02112"></a><span class="lineno"> 2112</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02113" name="l02113"></a><span class="lineno"> 2113</span><span class="comment">   * Any two given such triples may have equal sequence number/retransmission ID entries.  This</span></div>
-<div class="line"><a id="l02114" name="l02114"></a><span class="lineno"> 2114</span><span class="comment">   * means that during the last ACK delay timer or boost.asio handler, while accumulating the</span></div>
-<div class="line"><a id="l02115" name="l02115"></a><span class="lineno"> 2115</span><span class="comment">   * acknowledgments for this ACK packet, the receiver received the same packet twice (duplicate).</span></div>
-<div class="line"><a id="l02116" name="l02116"></a><span class="lineno"> 2116</span><span class="comment">   * (This can happen due to network misbehavior; and due to ACK loss and other conditions when</span></div>
-<div class="line"><a id="l02117" name="l02117"></a><span class="lineno"> 2117</span><span class="comment">   * retransmits are enabled.)  Call 2 such packets P1 and P2, where P1 was received first and thus</span></div>
-<div class="line"><a id="l02118" name="l02118"></a><span class="lineno"> 2118</span><span class="comment">   * appears earlier in acked_packets.  How do we handle this?</span></div>
-<div class="line"><a id="l02119" name="l02119"></a><span class="lineno"> 2119</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02120" name="l02120"></a><span class="lineno"> 2120</span><span class="comment">   * Suppose instead of being in the same ACK, P1 and P2 were in different ACKs that arrived in that</span></div>
-<div class="line"><a id="l02121" name="l02121"></a><span class="lineno"> 2121</span><span class="comment">   * order, P1 and P2 (something that certainly could happen depending on how the delayed ACK timer</span></div>
-<div class="line"><a id="l02122" name="l02122"></a><span class="lineno"> 2122</span><span class="comment">   * works out).  That situation is basically the same (except that if they&#39;re in one ACK there&#39;s</span></div>
-<div class="line"><a id="l02123" name="l02123"></a><span class="lineno"> 2123</span><span class="comment">   * the added guarantee that we KNOW what P1 is acknowledging arrived to the receiver before</span></div>
-<div class="line"><a id="l02124" name="l02124"></a><span class="lineno"> 2124</span><span class="comment">   * what P2 was acknowledging did, which is even more solid knowledge).  Therefore, it makes sense</span></div>
-<div class="line"><a id="l02125" name="l02125"></a><span class="lineno"> 2125</span><span class="comment">   * to simply handle each acknowledgment in the ACK in the order they&#39;re listed in acked_packets.</span></div>
-<div class="line"><a id="l02126" name="l02126"></a><span class="lineno"> 2126</span><span class="comment">   * The 2nd, 3rd, etc. occurrence will thus be treated the same way as if it arrived in a later</span></div>
-<div class="line"><a id="l02127" name="l02127"></a><span class="lineno"> 2127</span><span class="comment">   * ACK. */</span></div>
-<div class="line"><a id="l02128" name="l02128"></a><span class="lineno"> 2128</span> </div>
-<div class="line"><a id="l02129" name="l02129"></a><span class="lineno"> 2129</span>  <span class="comment">/* Congestion control: First see introduction to this topic in class Congestion_control_strategy</span></div>
-<div class="line"><a id="l02130" name="l02130"></a><span class="lineno"> 2130</span><span class="comment">   * doc header.  Then resume here.</span></div>
-<div class="line"><a id="l02131" name="l02131"></a><span class="lineno"> 2131</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02132" name="l02132"></a><span class="lineno"> 2132</span><span class="comment">   * Since information stored in ACKs is of paramount importance to how congestion control views the</span></div>
-<div class="line"><a id="l02133" name="l02133"></a><span class="lineno"> 2133</span><span class="comment">   * pipe, congestion control is very relevant in this method: this method is the main (but not</span></div>
-<div class="line"><a id="l02134" name="l02134"></a><span class="lineno"> 2134</span><span class="comment">   * only) source of events for m_snd_cong_ctl.</span></div>
-<div class="line"><a id="l02135" name="l02135"></a><span class="lineno"> 2135</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02136" name="l02136"></a><span class="lineno"> 2136</span><span class="comment">   * These ACK-based events are of interest to m_snd_cong_ctl:</span></div>
+<div class="line"><a id="l02077" name="l02077"></a><span class="lineno"> 2077</span>  <span class="comment">/* This is a complex method that does many things.  Therefore readability is hard to accomplish, as the logic</span></div>
+<div class="line"><a id="l02078" name="l02078"></a><span class="lineno"> 2078</span><span class="comment">   * makes sense when writing it, but the big picture is hard to see when reading it.  The necessary heavy commenting</span></div>
+<div class="line"><a id="l02079" name="l02079"></a><span class="lineno"> 2079</span><span class="comment">   * further increases the size and therefore (along that dimension) decreases readability.  For these reasons,</span></div>
+<div class="line"><a id="l02080" name="l02080"></a><span class="lineno"> 2080</span><span class="comment">   * many logically distinct parts were placed into helper methods -- not to increase code reuse but to help</span></div>
+<div class="line"><a id="l02081" name="l02081"></a><span class="lineno"> 2081</span><span class="comment">   * the aforementioned consideration. */</span></div>
+<div class="line"><a id="l02082" name="l02082"></a><span class="lineno"> 2082</span> </div>
+<div class="line"><a id="l02083" name="l02083"></a><span class="lineno"> 2083</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l02084" name="l02084"></a><span class="lineno"> 2084</span> </div>
+<div class="line"><a id="l02085" name="l02085"></a><span class="lineno"> 2085</span>  log_accumulated_acks(sock);</div>
+<div class="line"><a id="l02086" name="l02086"></a><span class="lineno"> 2086</span>  <span class="comment">// Below TRACE messages omit most of the just-logged detail, since it&#39;s already logged now.</span></div>
+<div class="line"><a id="l02087" name="l02087"></a><span class="lineno"> 2087</span> </div>
+<div class="line"><a id="l02088" name="l02088"></a><span class="lineno"> 2088</span>  <span class="comment">// For brevity and a little speed:</span></div>
+<div class="line"><a id="l02089" name="l02089"></a><span class="lineno"> 2089</span>  <span class="keyword">using </span>Acks = vector&lt;Ack_packet::Individual_ack::Ptr&gt;;</div>
+<div class="line"><a id="l02090" name="l02090"></a><span class="lineno"> 2090</span>  Acks&amp; acked_packets = sock-&gt;m_rcv_acked_packets;</div>
+<div class="line"><a id="l02091" name="l02091"></a><span class="lineno"> 2091</span>  <span class="comment">/* To not put already-handled acknowledgments up for handling again in the next run of this method</span></div>
+<div class="line"><a id="l02092" name="l02092"></a><span class="lineno"> 2092</span><span class="comment">   * (which would be wrong), we must clear acked_packets before exiting this method.  To be safe,</span></div>
+<div class="line"><a id="l02093" name="l02093"></a><span class="lineno"> 2093</span><span class="comment">   * make sure acked_packets.clear() runs no matter how this method exits. */</span></div>
+<div class="line"><a id="l02094" name="l02094"></a><span class="lineno"> 2094</span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#ab22fd89e165a9e6deaa174bc0dfdc8de">util::Auto_cleanup</a> cleanup = <a class="code hl_function" href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">util::setup_auto_cleanup</a>([&amp;]() { acked_packets.clear(); });</div>
+<div class="line"><a id="l02095" name="l02095"></a><span class="lineno"> 2095</span> </div>
+<div class="line"><a id="l02096" name="l02096"></a><span class="lineno"> 2096</span>  <span class="comment">/* Handle all the acknowledgments we&#39;ve received in this receive handler.  Background on the</span></div>
+<div class="line"><a id="l02097" name="l02097"></a><span class="lineno"> 2097</span><span class="comment">   * accumulation tactic is in handle_ack_to_established().  As explained in that method, some</span></div>
+<div class="line"><a id="l02098" name="l02098"></a><span class="lineno"> 2098</span><span class="comment">   * packet between the first and last ACK received in this handler may have changed state away from</span></div>
+<div class="line"><a id="l02099" name="l02099"></a><span class="lineno"> 2099</span><span class="comment">   * ESTABLISHED.  For example, there could have been an RST.  Check for that. */</span></div>
+<div class="line"><a id="l02100" name="l02100"></a><span class="lineno"> 2100</span>  <span class="keywordflow">if</span> (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>)</div>
+<div class="line"><a id="l02101" name="l02101"></a><span class="lineno"> 2101</span>  {</div>
+<div class="line"><a id="l02102" name="l02102"></a><span class="lineno"> 2102</span>    <span class="comment">// Rare/interesting enough for INFO.</span></div>
+<div class="line"><a id="l02103" name="l02103"></a><span class="lineno"> 2103</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
+<div class="line"><a id="l02104" name="l02104"></a><span class="lineno"> 2104</span>                  <span class="stringliteral">&quot;Accumulated [ACK] packets with [&quot;</span> &lt;&lt; acked_packets.size() &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l02105" name="l02105"></a><span class="lineno"> 2105</span>                  <span class="stringliteral">&quot;individual acknowledgments, but state is now [&quot;</span> &lt;&lt; sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;]; ignoring ACKs forever.&quot;</span>);</div>
+<div class="line"><a id="l02106" name="l02106"></a><span class="lineno"> 2106</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l02107" name="l02107"></a><span class="lineno"> 2107</span>  }</div>
+<div class="line"><a id="l02108" name="l02108"></a><span class="lineno"> 2108</span>  <span class="comment">// else OK.  Handle the accumulated acknowledgments.</span></div>
+<div class="line"><a id="l02109" name="l02109"></a><span class="lineno"> 2109</span>  assert(sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>);</div>
+<div class="line"><a id="l02110" name="l02110"></a><span class="lineno"> 2110</span> </div>
+<div class="line"><a id="l02111" name="l02111"></a><span class="lineno"> 2111</span>  <span class="comment">/* The individual acknowledgments are (sequence number, ACK delay in unit X, retransmission ID)</span></div>
+<div class="line"><a id="l02112" name="l02112"></a><span class="lineno"> 2112</span><span class="comment">   * triples, where the latter is always zero unless retransmission is enabled.  Let&#39;s handle each</span></div>
+<div class="line"><a id="l02113" name="l02113"></a><span class="lineno"> 2113</span><span class="comment">   * one by updating m_snd_flying_pkts* (i.e., removing that packet from m_snd_flying_pkts*) and</span></div>
+<div class="line"><a id="l02114" name="l02114"></a><span class="lineno"> 2114</span><span class="comment">   * informing congestion control.  Before continuing reading the method please look at the large</span></div>
+<div class="line"><a id="l02115" name="l02115"></a><span class="lineno"> 2115</span><span class="comment">   * comments for Peer_socket::m_snd_flying_pkts_by_{sent_when|seq_num} (drawing a diagram might also help).</span></div>
+<div class="line"><a id="l02116" name="l02116"></a><span class="lineno"> 2116</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02117" name="l02117"></a><span class="lineno"> 2117</span><span class="comment">   * Before continuing, quick discussion of corner cases:</span></div>
+<div class="line"><a id="l02118" name="l02118"></a><span class="lineno"> 2118</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02119" name="l02119"></a><span class="lineno"> 2119</span><span class="comment">   * Any two given such triples may have equal sequence number/retransmission ID entries.  This</span></div>
+<div class="line"><a id="l02120" name="l02120"></a><span class="lineno"> 2120</span><span class="comment">   * means that during the last ACK delay timer or boost.asio handler, while accumulating the</span></div>
+<div class="line"><a id="l02121" name="l02121"></a><span class="lineno"> 2121</span><span class="comment">   * acknowledgments for this ACK packet, the receiver received the same packet twice (duplicate).</span></div>
+<div class="line"><a id="l02122" name="l02122"></a><span class="lineno"> 2122</span><span class="comment">   * (This can happen due to network misbehavior; and due to ACK loss and other conditions when</span></div>
+<div class="line"><a id="l02123" name="l02123"></a><span class="lineno"> 2123</span><span class="comment">   * retransmits are enabled.)  Call 2 such packets P1 and P2, where P1 was received first and thus</span></div>
+<div class="line"><a id="l02124" name="l02124"></a><span class="lineno"> 2124</span><span class="comment">   * appears earlier in acked_packets.  How do we handle this?</span></div>
+<div class="line"><a id="l02125" name="l02125"></a><span class="lineno"> 2125</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02126" name="l02126"></a><span class="lineno"> 2126</span><span class="comment">   * Suppose instead of being in the same ACK, P1 and P2 were in different ACKs that arrived in that</span></div>
+<div class="line"><a id="l02127" name="l02127"></a><span class="lineno"> 2127</span><span class="comment">   * order, P1 and P2 (something that certainly could happen depending on how the delayed ACK timer</span></div>
+<div class="line"><a id="l02128" name="l02128"></a><span class="lineno"> 2128</span><span class="comment">   * works out).  That situation is basically the same (except that if they&#39;re in one ACK there&#39;s</span></div>
+<div class="line"><a id="l02129" name="l02129"></a><span class="lineno"> 2129</span><span class="comment">   * the added guarantee that we KNOW what P1 is acknowledging arrived to the receiver before</span></div>
+<div class="line"><a id="l02130" name="l02130"></a><span class="lineno"> 2130</span><span class="comment">   * what P2 was acknowledging did, which is even more solid knowledge).  Therefore, it makes sense</span></div>
+<div class="line"><a id="l02131" name="l02131"></a><span class="lineno"> 2131</span><span class="comment">   * to simply handle each acknowledgment in the ACK in the order they&#39;re listed in acked_packets.</span></div>
+<div class="line"><a id="l02132" name="l02132"></a><span class="lineno"> 2132</span><span class="comment">   * The 2nd, 3rd, etc. occurrence will thus be treated the same way as if it arrived in a later</span></div>
+<div class="line"><a id="l02133" name="l02133"></a><span class="lineno"> 2133</span><span class="comment">   * ACK. */</span></div>
+<div class="line"><a id="l02134" name="l02134"></a><span class="lineno"> 2134</span> </div>
+<div class="line"><a id="l02135" name="l02135"></a><span class="lineno"> 2135</span>  <span class="comment">/* Congestion control: First see introduction to this topic in class Congestion_control_strategy</span></div>
+<div class="line"><a id="l02136" name="l02136"></a><span class="lineno"> 2136</span><span class="comment">   * doc header.  Then resume here.</span></div>
 <div class="line"><a id="l02137" name="l02137"></a><span class="lineno"> 2137</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02138" name="l02138"></a><span class="lineno"> 2138</span><span class="comment">   *   - on_acks(N, M): N bytes in M packets have just been converted from In-flight to</span></div>
-<div class="line"><a id="l02139" name="l02139"></a><span class="lineno"> 2139</span><span class="comment">   *     Acknowledged.  Note that these packets have NOT been previously Acknowledged or considered</span></div>
-<div class="line"><a id="l02140" name="l02140"></a><span class="lineno"> 2140</span><span class="comment">   *     Dropped (they are In-flight just before the ACK).</span></div>
-<div class="line"><a id="l02141" name="l02141"></a><span class="lineno"> 2141</span><span class="comment">   *     - This should also be immediately preceded with M on_individual_ack(N&#39;, T, CWND) events, where N&#39;</span></div>
-<div class="line"><a id="l02142" name="l02142"></a><span class="lineno"> 2142</span><span class="comment">   *       is the # of bytes in the individual acked packet; and T is the RTT of the packet, and CWND is the</span></div>
-<div class="line"><a id="l02143" name="l02143"></a><span class="lineno"> 2143</span><span class="comment">   *       # of bytes in cwnd that was used when the acked data pkt was sent.</span></div>
-<div class="line"><a id="l02144" name="l02144"></a><span class="lineno"> 2144</span><span class="comment">   *       In the rest of the discussion I omit this event, as it can be thought of as part of</span></div>
-<div class="line"><a id="l02145" name="l02145"></a><span class="lineno"> 2145</span><span class="comment">   *       on_acks() for purposes of the discussion.</span></div>
-<div class="line"><a id="l02146" name="l02146"></a><span class="lineno"> 2146</span><span class="comment">   *   - on_loss_event(N&#39;, M&#39;): N&#39; bytes in M&#39; packets have just been converted from In-flight to</span></div>
-<div class="line"><a id="l02147" name="l02147"></a><span class="lineno"> 2147</span><span class="comment">   *     Dropped.</span></div>
-<div class="line"><a id="l02148" name="l02148"></a><span class="lineno"> 2148</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02149" name="l02149"></a><span class="lineno"> 2149</span><span class="comment">   * The basic idea is to determine which of these events are implied by the acks passed to this</span></div>
-<div class="line"><a id="l02150" name="l02150"></a><span class="lineno"> 2150</span><span class="comment">   * method, inform m_snd_cong_ctl, and then check if the new m_snd_cong_ctl-&gt;congestion_window_bytes()</span></div>
-<div class="line"><a id="l02151" name="l02151"></a><span class="lineno"> 2151</span><span class="comment">   * value (a/k/a CWND) -- if it has changed -- allows us to now send more bytes (if we have any).</span></div>
-<div class="line"><a id="l02152" name="l02152"></a><span class="lineno"> 2152</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02153" name="l02153"></a><span class="lineno"> 2153</span><span class="comment">   * An important decision (and one sadly not very explicitly exposed [perhaps as an exercise to the</span></div>
-<div class="line"><a id="l02154" name="l02154"></a><span class="lineno"> 2154</span><span class="comment">   * reader, or to avoid being too rigid] in the various TCP RFCs) is how to group these events and</span></div>
-<div class="line"><a id="l02155" name="l02155"></a><span class="lineno"> 2155</span><span class="comment">   * in what order.  In other words, do we call on_acks(N, 1) for each acknowledged packet?  Do we</span></div>
-<div class="line"><a id="l02156" name="l02156"></a><span class="lineno"> 2156</span><span class="comment">   * then check for drops and call on_loss_event(N&#39;, M&#39;) immediately, or wait to process all acked</span></div>
-<div class="line"><a id="l02157" name="l02157"></a><span class="lineno"> 2157</span><span class="comment">   * packets first?</span></div>
+<div class="line"><a id="l02138" name="l02138"></a><span class="lineno"> 2138</span><span class="comment">   * Since information stored in ACKs is of paramount importance to how congestion control views the</span></div>
+<div class="line"><a id="l02139" name="l02139"></a><span class="lineno"> 2139</span><span class="comment">   * pipe, congestion control is very relevant in this method: this method is the main (but not</span></div>
+<div class="line"><a id="l02140" name="l02140"></a><span class="lineno"> 2140</span><span class="comment">   * only) source of events for m_snd_cong_ctl.</span></div>
+<div class="line"><a id="l02141" name="l02141"></a><span class="lineno"> 2141</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02142" name="l02142"></a><span class="lineno"> 2142</span><span class="comment">   * These ACK-based events are of interest to m_snd_cong_ctl:</span></div>
+<div class="line"><a id="l02143" name="l02143"></a><span class="lineno"> 2143</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02144" name="l02144"></a><span class="lineno"> 2144</span><span class="comment">   *   - on_acks(N, M): N bytes in M packets have just been converted from In-flight to</span></div>
+<div class="line"><a id="l02145" name="l02145"></a><span class="lineno"> 2145</span><span class="comment">   *     Acknowledged.  Note that these packets have NOT been previously Acknowledged or considered</span></div>
+<div class="line"><a id="l02146" name="l02146"></a><span class="lineno"> 2146</span><span class="comment">   *     Dropped (they are In-flight just before the ACK).</span></div>
+<div class="line"><a id="l02147" name="l02147"></a><span class="lineno"> 2147</span><span class="comment">   *     - This should also be immediately preceded with M on_individual_ack(N&#39;, T, CWND) events, where N&#39;</span></div>
+<div class="line"><a id="l02148" name="l02148"></a><span class="lineno"> 2148</span><span class="comment">   *       is the # of bytes in the individual acked packet; and T is the RTT of the packet, and CWND is the</span></div>
+<div class="line"><a id="l02149" name="l02149"></a><span class="lineno"> 2149</span><span class="comment">   *       # of bytes in cwnd that was used when the acked data pkt was sent.</span></div>
+<div class="line"><a id="l02150" name="l02150"></a><span class="lineno"> 2150</span><span class="comment">   *       In the rest of the discussion I omit this event, as it can be thought of as part of</span></div>
+<div class="line"><a id="l02151" name="l02151"></a><span class="lineno"> 2151</span><span class="comment">   *       on_acks() for purposes of the discussion.</span></div>
+<div class="line"><a id="l02152" name="l02152"></a><span class="lineno"> 2152</span><span class="comment">   *   - on_loss_event(N&#39;, M&#39;): N&#39; bytes in M&#39; packets have just been converted from In-flight to</span></div>
+<div class="line"><a id="l02153" name="l02153"></a><span class="lineno"> 2153</span><span class="comment">   *     Dropped.</span></div>
+<div class="line"><a id="l02154" name="l02154"></a><span class="lineno"> 2154</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02155" name="l02155"></a><span class="lineno"> 2155</span><span class="comment">   * The basic idea is to determine which of these events are implied by the acks passed to this</span></div>
+<div class="line"><a id="l02156" name="l02156"></a><span class="lineno"> 2156</span><span class="comment">   * method, inform m_snd_cong_ctl, and then check if the new m_snd_cong_ctl-&gt;congestion_window_bytes()</span></div>
+<div class="line"><a id="l02157" name="l02157"></a><span class="lineno"> 2157</span><span class="comment">   * value (a/k/a CWND) -- if it has changed -- allows us to now send more bytes (if we have any).</span></div>
 <div class="line"><a id="l02158" name="l02158"></a><span class="lineno"> 2158</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02159" name="l02159"></a><span class="lineno"> 2159</span><span class="comment">   * The answer we choose is simple.  First, scan all individual (i.e., for each sent packet) acks</span></div>
-<div class="line"><a id="l02160" name="l02160"></a><span class="lineno"> 2160</span><span class="comment">   * given to us and update m_snd_flying_pkts_by_seq_num (the &quot;scoreboard&quot;).  While doing so keep track of</span></div>
-<div class="line"><a id="l02161" name="l02161"></a><span class="lineno"> 2161</span><span class="comment">   * the cumulative N and M.  Having done that, we will also expose zero or more In-flight packets</span></div>
-<div class="line"><a id="l02162" name="l02162"></a><span class="lineno"> 2162</span><span class="comment">   * as Dropped.  (In this method, a given packet is exposed as Dropped if the total number of</span></div>
-<div class="line"><a id="l02163" name="l02163"></a><span class="lineno"> 2163</span><span class="comment">   * acknowledged packets AFTER that packet exceeds a constant like 2.  So basically if the acks we</span></div>
-<div class="line"><a id="l02164" name="l02164"></a><span class="lineno"> 2164</span><span class="comment">   * process here make that counter exceed that limit for a given packet P, P is Dropped and removed</span></div>
-<div class="line"><a id="l02165" name="l02165"></a><span class="lineno"> 2165</span><span class="comment">   * from m_snd_flying_pkts_by_seq_num.)  So after the ack scanning phase, tally up all packets now</span></div>
-<div class="line"><a id="l02166" name="l02166"></a><span class="lineno"> 2166</span><span class="comment">   * considered Dropped, which gives us N&#39; and M&#39;.</span></div>
-<div class="line"><a id="l02167" name="l02167"></a><span class="lineno"> 2167</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02168" name="l02168"></a><span class="lineno"> 2168</span><span class="comment">   * Finally, call on_loss_event(N&#39;, M&#39;) (assuming N&#39; and M&#39; are not zero).  And then call</span></div>
-<div class="line"><a id="l02169" name="l02169"></a><span class="lineno"> 2169</span><span class="comment">   * on_acks(M, N) (assuming N and M are not zero).</span></div>
-<div class="line"><a id="l02170" name="l02170"></a><span class="lineno"> 2170</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02171" name="l02171"></a><span class="lineno"> 2171</span><span class="comment">   * Let&#39;s justify this.  First, assume it&#39;s correct to tally these things up and then just</span></div>
-<div class="line"><a id="l02172" name="l02172"></a><span class="lineno"> 2172</span><span class="comment">   * call each method once.  Is the &quot;report loss, report acks&quot; order right?  Yes.  Intuitively,</span></div>
-<div class="line"><a id="l02173" name="l02173"></a><span class="lineno"> 2173</span><span class="comment">   * m_snd_cong_ctl wants to know about events in the chronological order they occur.  While the Drop(s)</span></div>
-<div class="line"><a id="l02174" name="l02174"></a><span class="lineno"> 2174</span><span class="comment">   * are detected at the same time as the Ack(s), the actual packet dropping INFERRED from the</span></div>
-<div class="line"><a id="l02175" name="l02175"></a><span class="lineno"> 2175</span><span class="comment">   * Ack(s) occurred in the past; we&#39;re only deducing it now.  The received Acks are in fact for</span></div>
-<div class="line"><a id="l02176" name="l02176"></a><span class="lineno"> 2176</span><span class="comment">   * packets AFTER the now-Dropped packets.  Hence this is the right order.</span></div>
-<div class="line"><a id="l02177" name="l02177"></a><span class="lineno"> 2177</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02178" name="l02178"></a><span class="lineno"> 2178</span><span class="comment">   * Now the only remaining thing is to justify combining the ack and drop events in one (each).  For</span></div>
-<div class="line"><a id="l02179" name="l02179"></a><span class="lineno"> 2179</span><span class="comment">   * acknowledgments, it&#39;s straightforward: so far, most Congestion_control_strategy modules</span></div>
-<div class="line"><a id="l02180" name="l02180"></a><span class="lineno"> 2180</span><span class="comment">   * don&#39;t need to know about each individual ack, so for simplicity/efficiency we can just combine</span></div>
-<div class="line"><a id="l02181" name="l02181"></a><span class="lineno"> 2181</span><span class="comment">   * them.  (However, some algorithms do need it; e.g., FAST would need it; still, many don&#39;t.</span></div>
-<div class="line"><a id="l02182" name="l02182"></a><span class="lineno"> 2182</span><span class="comment">   * Other modules, like Send_bandwidth_estimator, may also care about individual acks.)</span></div>
+<div class="line"><a id="l02159" name="l02159"></a><span class="lineno"> 2159</span><span class="comment">   * An important decision (and one sadly not very explicitly exposed [perhaps as an exercise to the</span></div>
+<div class="line"><a id="l02160" name="l02160"></a><span class="lineno"> 2160</span><span class="comment">   * reader, or to avoid being too rigid] in the various TCP RFCs) is how to group these events and</span></div>
+<div class="line"><a id="l02161" name="l02161"></a><span class="lineno"> 2161</span><span class="comment">   * in what order.  In other words, do we call on_acks(N, 1) for each acknowledged packet?  Do we</span></div>
+<div class="line"><a id="l02162" name="l02162"></a><span class="lineno"> 2162</span><span class="comment">   * then check for drops and call on_loss_event(N&#39;, M&#39;) immediately, or wait to process all acked</span></div>
+<div class="line"><a id="l02163" name="l02163"></a><span class="lineno"> 2163</span><span class="comment">   * packets first?</span></div>
+<div class="line"><a id="l02164" name="l02164"></a><span class="lineno"> 2164</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02165" name="l02165"></a><span class="lineno"> 2165</span><span class="comment">   * The answer we choose is simple.  First, scan all individual (i.e., for each sent packet) acks</span></div>
+<div class="line"><a id="l02166" name="l02166"></a><span class="lineno"> 2166</span><span class="comment">   * given to us and update m_snd_flying_pkts_by_seq_num (the &quot;scoreboard&quot;).  While doing so keep track of</span></div>
+<div class="line"><a id="l02167" name="l02167"></a><span class="lineno"> 2167</span><span class="comment">   * the cumulative N and M.  Having done that, we will also expose zero or more In-flight packets</span></div>
+<div class="line"><a id="l02168" name="l02168"></a><span class="lineno"> 2168</span><span class="comment">   * as Dropped.  (In this method, a given packet is exposed as Dropped if the total number of</span></div>
+<div class="line"><a id="l02169" name="l02169"></a><span class="lineno"> 2169</span><span class="comment">   * acknowledged packets AFTER that packet exceeds a constant like 2.  So basically if the acks we</span></div>
+<div class="line"><a id="l02170" name="l02170"></a><span class="lineno"> 2170</span><span class="comment">   * process here make that counter exceed that limit for a given packet P, P is Dropped and removed</span></div>
+<div class="line"><a id="l02171" name="l02171"></a><span class="lineno"> 2171</span><span class="comment">   * from m_snd_flying_pkts_by_seq_num.)  So after the ack scanning phase, tally up all packets now</span></div>
+<div class="line"><a id="l02172" name="l02172"></a><span class="lineno"> 2172</span><span class="comment">   * considered Dropped, which gives us N&#39; and M&#39;.</span></div>
+<div class="line"><a id="l02173" name="l02173"></a><span class="lineno"> 2173</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02174" name="l02174"></a><span class="lineno"> 2174</span><span class="comment">   * Finally, call on_loss_event(N&#39;, M&#39;) (assuming N&#39; and M&#39; are not zero).  And then call</span></div>
+<div class="line"><a id="l02175" name="l02175"></a><span class="lineno"> 2175</span><span class="comment">   * on_acks(M, N) (assuming N and M are not zero).</span></div>
+<div class="line"><a id="l02176" name="l02176"></a><span class="lineno"> 2176</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02177" name="l02177"></a><span class="lineno"> 2177</span><span class="comment">   * Let&#39;s justify this.  First, assume it&#39;s correct to tally these things up and then just</span></div>
+<div class="line"><a id="l02178" name="l02178"></a><span class="lineno"> 2178</span><span class="comment">   * call each method once.  Is the &quot;report loss, report acks&quot; order right?  Yes.  Intuitively,</span></div>
+<div class="line"><a id="l02179" name="l02179"></a><span class="lineno"> 2179</span><span class="comment">   * m_snd_cong_ctl wants to know about events in the chronological order they occur.  While the Drop(s)</span></div>
+<div class="line"><a id="l02180" name="l02180"></a><span class="lineno"> 2180</span><span class="comment">   * are detected at the same time as the Ack(s), the actual packet dropping INFERRED from the</span></div>
+<div class="line"><a id="l02181" name="l02181"></a><span class="lineno"> 2181</span><span class="comment">   * Ack(s) occurred in the past; we&#39;re only deducing it now.  The received Acks are in fact for</span></div>
+<div class="line"><a id="l02182" name="l02182"></a><span class="lineno"> 2182</span><span class="comment">   * packets AFTER the now-Dropped packets.  Hence this is the right order.</span></div>
 <div class="line"><a id="l02183" name="l02183"></a><span class="lineno"> 2183</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02184" name="l02184"></a><span class="lineno"> 2184</span><span class="comment">   * What about the drop events?  Why combine all the drops into one?  Should we include all the</span></div>
-<div class="line"><a id="l02185" name="l02185"></a><span class="lineno"> 2185</span><span class="comment">   * drops into the one?  To answer, I use as a reference DCCP CCID 2 RFC 4341 (standards track)</span></div>
-<div class="line"><a id="l02186" name="l02186"></a><span class="lineno"> 2186</span><span class="comment">   * which describes a protocol similar to ours and implies the following model.  Basically, over</span></div>
-<div class="line"><a id="l02187" name="l02187"></a><span class="lineno"> 2187</span><span class="comment">   * time, the pipe experiences a series of 0 or more congestion events (more accurately loss</span></div>
-<div class="line"><a id="l02188" name="l02188"></a><span class="lineno"> 2188</span><span class="comment">   * events).  Two loss events cannot overlap in this implied model.  Thus any given Dropped packet</span></div>
-<div class="line"><a id="l02189" name="l02189"></a><span class="lineno"> 2189</span><span class="comment">   * belongs to exactly one loss event.  Here is how the RFC (section 5) more or less formally</span></div>
-<div class="line"><a id="l02190" name="l02190"></a><span class="lineno"> 2190</span><span class="comment">   * defines whether 2 packets belong to one event: &quot;As in TCP, two losses [...] are considered part</span></div>
-<div class="line"><a id="l02191" name="l02191"></a><span class="lineno"> 2191</span><span class="comment">   * of a single congestion event when the second packet was sent before the loss [...] of the first</span></div>
-<div class="line"><a id="l02192" name="l02192"></a><span class="lineno"> 2192</span><span class="comment">   * packet was detected.&quot;  Presumably the text also assumes that the &quot;second&quot; packet was</span></div>
-<div class="line"><a id="l02193" name="l02193"></a><span class="lineno"> 2193</span><span class="comment">   * found to be dropped either at the same or later time as the &quot;first&quot; packet was found to be</span></div>
-<div class="line"><a id="l02194" name="l02194"></a><span class="lineno"> 2194</span><span class="comment">   * dropped (otherwise the text makes no sense, as the very earliest Dropped packet would be in the</span></div>
-<div class="line"><a id="l02195" name="l02195"></a><span class="lineno"> 2195</span><span class="comment">   * same congestion event as the very last Dropped packed in a very long session).  Let&#39;s build an</span></div>
-<div class="line"><a id="l02196" name="l02196"></a><span class="lineno"> 2196</span><span class="comment">   * algorithm inductively based on this definition.</span></div>
-<div class="line"><a id="l02197" name="l02197"></a><span class="lineno"> 2197</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02198" name="l02198"></a><span class="lineno"> 2198</span><span class="comment">   * At first there are no loss events.  We get a group of acks which render another group of</span></div>
-<div class="line"><a id="l02199" name="l02199"></a><span class="lineno"> 2199</span><span class="comment">   * packets P1, P2, ... (in order of increasing sequence number) Dropped.  Certainly P1 is in a</span></div>
-<div class="line"><a id="l02200" name="l02200"></a><span class="lineno"> 2200</span><span class="comment">   * loss event; call it L1.  P2 was found to be dropped at the same or later time as P1; and it was</span></div>
-<div class="line"><a id="l02201" name="l02201"></a><span class="lineno"> 2201</span><span class="comment">   * obviously sent before L1 was detected (which was NOW; call it T1).  So P2 is in loss event L1.</span></div>
-<div class="line"><a id="l02202" name="l02202"></a><span class="lineno"> 2202</span><span class="comment">   * Similarly, so is P3, P4, ....  Now let&#39;s say some time passes and we get more acks and thus</span></div>
-<div class="line"><a id="l02203" name="l02203"></a><span class="lineno"> 2203</span><span class="comment">   * dropped packets P7, P8, P9, ....  Suppose P7 was sent before T1 (but found Dropped at T2 &gt; T1),</span></div>
-<div class="line"><a id="l02204" name="l02204"></a><span class="lineno"> 2204</span><span class="comment">   * which is quite possible (e.g., T2 could be just after T1).  Then by the above definition P7 is</span></div>
-<div class="line"><a id="l02205" name="l02205"></a><span class="lineno"> 2205</span><span class="comment">   * in loss event L1 (no new loss event).  P8 could be in the same situation.  In fact, all Dropped</span></div>
-<div class="line"><a id="l02206" name="l02206"></a><span class="lineno"> 2206</span><span class="comment">   * packets from this ack group may be in L1.  Suppose, conversely, that P9 was sent AFTER T1.  By</span></div>
-<div class="line"><a id="l02207" name="l02207"></a><span class="lineno"> 2207</span><span class="comment">   * the above definition, it is part of a new loss event L2, detected at T2.  Now P10, is certainly</span></div>
-<div class="line"><a id="l02208" name="l02208"></a><span class="lineno"> 2208</span><span class="comment">   * in L2 as well, since it was sent before T2, obviously.  Thus we can, for each Dropped packet P,</span></div>
-<div class="line"><a id="l02209" name="l02209"></a><span class="lineno"> 2209</span><span class="comment">   * determine whether it&#39;s part of the preceding loss event or part of a new one.</span></div>
-<div class="line"><a id="l02210" name="l02210"></a><span class="lineno"> 2210</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02211" name="l02211"></a><span class="lineno"> 2211</span><span class="comment">   * Intuitively, it makes sense as well.  If, say, we got 5 dropped packets at the same time, and</span></div>
-<div class="line"><a id="l02212" name="l02212"></a><span class="lineno"> 2212</span><span class="comment">   * informed Congestion_control_classic (Reno) with 5 calls to on_loss_event(), then CWND would get</span></div>
-<div class="line"><a id="l02213" name="l02213"></a><span class="lineno"> 2213</span><span class="comment">   * halved 5 times!  Intuitively that&#39;s not right (and way too conservative).  More likely the 5</span></div>
-<div class="line"><a id="l02214" name="l02214"></a><span class="lineno"> 2214</span><span class="comment">   * packets belong to the same congestion or loss event, so CWND should only be halved once.  Then</span></div>
-<div class="line"><a id="l02215" name="l02215"></a><span class="lineno"> 2215</span><span class="comment">   * the only question is how to group packets into separate loss events.  The above algorithm,</span></div>
-<div class="line"><a id="l02216" name="l02216"></a><span class="lineno"> 2216</span><span class="comment">   * roughly speaking, considers two packets as part of the same loss event if they&#39;re within an RTT</span></div>
-<div class="line"><a id="l02217" name="l02217"></a><span class="lineno"> 2217</span><span class="comment">   * of each other (indeed RFC 4341 says one can use the SRTT to approximate the above algorithm,</span></div>
-<div class="line"><a id="l02218" name="l02218"></a><span class="lineno"> 2218</span><span class="comment">   * although we choose to use the exact definition instead).</span></div>
-<div class="line"><a id="l02219" name="l02219"></a><span class="lineno"> 2219</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02220" name="l02220"></a><span class="lineno"> 2220</span><span class="comment">   * Therefore the final algorithm is justified and is as follows:</span></div>
-<div class="line"><a id="l02221" name="l02221"></a><span class="lineno"> 2221</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02222" name="l02222"></a><span class="lineno"> 2222</span><span class="comment">   *   0. Before the current method is ever called, set time stamp m_snd_last_loss_event_when =</span></div>
-<div class="line"><a id="l02223" name="l02223"></a><span class="lineno"> 2223</span><span class="comment">   *      -infinity.</span></div>
-<div class="line"><a id="l02224" name="l02224"></a><span class="lineno"> 2224</span><span class="comment">   *   1. Scan all acknowledgments, updating m_snd_flying_pkts* and m_snd_flying_bytes.</span></div>
-<div class="line"><a id="l02225" name="l02225"></a><span class="lineno"> 2225</span><span class="comment">   *      Keep track of total acknowledgment stats (bytes and packets). (Inform side modules like</span></div>
-<div class="line"><a id="l02226" name="l02226"></a><span class="lineno"> 2226</span><span class="comment">   *      Send_bandwidth_estimator with any required individual ack info like RTTs.)</span></div>
-<div class="line"><a id="l02227" name="l02227"></a><span class="lineno"> 2227</span><span class="comment">   *      Ignore acks of packets not in m_snd_flying_pkts* (not In-flight).</span></div>
-<div class="line"><a id="l02228" name="l02228"></a><span class="lineno"> 2228</span><span class="comment">   *   2. Tally up which packets are exposed as Dropped by the above m_snd_flying_pkts* updates.</span></div>
-<div class="line"><a id="l02229" name="l02229"></a><span class="lineno"> 2229</span><span class="comment">   *      Keep track of total loss stats (bytes and packets).  However, when doing the latter ignore</span></div>
-<div class="line"><a id="l02230" name="l02230"></a><span class="lineno"> 2230</span><span class="comment">   *      any packet P for which P.m_sent_when &lt; m_snd_last_loss_event_when.</span></div>
-<div class="line"><a id="l02231" name="l02231"></a><span class="lineno"> 2231</span><span class="comment">   *   3. If at least 1 packet exposed as Dropped in step 2, call</span></div>
-<div class="line"><a id="l02232" name="l02232"></a><span class="lineno"> 2232</span><span class="comment">   *      m_snd_cong_ctl-&gt;on_loss_event(...stats...); and set m_snd_last_loss_event_when to the current time,</span></div>
-<div class="line"><a id="l02233" name="l02233"></a><span class="lineno"> 2233</span><span class="comment">   *      marking this the start of a new loss event.</span></div>
-<div class="line"><a id="l02234" name="l02234"></a><span class="lineno"> 2234</span><span class="comment">   *   4. If at least 1 packet exposed as Acknowledged in step 1, call</span></div>
-<div class="line"><a id="l02235" name="l02235"></a><span class="lineno"> 2235</span><span class="comment">   *      m_snd_cong_ctl-&gt;on_acks(...stats...). */</span></div>
-<div class="line"><a id="l02236" name="l02236"></a><span class="lineno"> 2236</span> </div>
-<div class="line"><a id="l02237" name="l02237"></a><span class="lineno"> 2237</span>  <span class="comment">// Set up work state and save certain &quot;before&quot; values.</span></div>
-<div class="line"><a id="l02238" name="l02238"></a><span class="lineno"> 2238</span> </div>
-<div class="line"><a id="l02239" name="l02239"></a><span class="lineno"> 2239</span>  <span class="comment">// For RTT at least.  Use steady, high-res clock.  Use one coherent value for entire method to simulate simultaneity.</span></div>
-<div class="line"><a id="l02240" name="l02240"></a><span class="lineno"> 2240</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> time_now = Fine_clock::now();</div>
-<div class="line"><a id="l02241" name="l02241"></a><span class="lineno"> 2241</span> </div>
-<div class="line"><a id="l02242" name="l02242"></a><span class="lineno"> 2242</span>  <span class="comment">// For brevity and a little speed:</span></div>
-<div class="line"><a id="l02243" name="l02243"></a><span class="lineno"> 2243</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> = sock-&gt;rexmit_on();</div>
-<div class="line"><a id="l02244" name="l02244"></a><span class="lineno"> 2244</span>  <span class="keyword">auto</span>&amp; snd_stats = sock-&gt;m_snd_stats;</div>
-<div class="line"><a id="l02245" name="l02245"></a><span class="lineno"> 2245</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
-<div class="line"><a id="l02246" name="l02246"></a><span class="lineno"> 2246</span>  <span class="comment">/* These guys are only stored in Peer_socket (instead of creating locally here) for a bit of performance.  Reuse now.</span></div>
-<div class="line"><a id="l02247" name="l02247"></a><span class="lineno"> 2247</span><span class="comment">   * Note that clear() is a very fast operation; it will essentially just set the internal element count to 0. */</span></div>
-<div class="line"><a id="l02248" name="l02248"></a><span class="lineno"> 2248</span>  <span class="keyword">auto</span>&amp; pkts_marked_to_drop = sock-&gt;m_snd_temp_pkts_marked_to_drop;</div>
-<div class="line"><a id="l02249" name="l02249"></a><span class="lineno"> 2249</span>  pkts_marked_to_drop.clear();</div>
-<div class="line"><a id="l02250" name="l02250"></a><span class="lineno"> 2250</span> </div>
-<div class="line"><a id="l02251" name="l02251"></a><span class="lineno"> 2251</span>  <span class="comment">// To check, at the end, whether we&#39;ve changed can_send() false =&gt; true.</span></div>
-<div class="line"><a id="l02252" name="l02252"></a><span class="lineno"> 2252</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> could_send_before_acks = can_send(sock);</div>
-<div class="line"><a id="l02253" name="l02253"></a><span class="lineno"> 2253</span>  <span class="comment">// To check, at the end, whether we&#39;ve changed snd_deqable() false =&gt; true.</span></div>
-<div class="line"><a id="l02254" name="l02254"></a><span class="lineno"> 2254</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> had_rexmit_data_before_acks = !sock-&gt;m_snd_rexmit_q.empty();</div>
-<div class="line"><a id="l02255" name="l02255"></a><span class="lineno"> 2255</span> </div>
-<div class="line"><a id="l02256" name="l02256"></a><span class="lineno"> 2256</span>  <span class="comment">/* Includes each order number (unique packet ID) for which the packet was acknowledged.</span></div>
-<div class="line"><a id="l02257" name="l02257"></a><span class="lineno"> 2257</span><span class="comment">   * Used for Drop_timer events to register at the bottom; and also to feed the priority queue high_ack_count_q</span></div>
-<div class="line"><a id="l02258" name="l02258"></a><span class="lineno"> 2258</span><span class="comment">   * (explained below in detail). */</span></div>
-<div class="line"><a id="l02259" name="l02259"></a><span class="lineno"> 2259</span>  unordered_set&lt;Peer_socket::order_num_t&gt; flying_now_acked_pkts;</div>
-<div class="line"><a id="l02260" name="l02260"></a><span class="lineno"> 2260</span> </div>
-<div class="line"><a id="l02261" name="l02261"></a><span class="lineno"> 2261</span>  <span class="comment">// These are the N, M arguments to on_acks() described just above in big comment.</span></div>
-<div class="line"><a id="l02262" name="l02262"></a><span class="lineno"> 2262</span>  <span class="keywordtype">size_t</span> clean_acked_bytes = 0;</div>
-<div class="line"><a id="l02263" name="l02263"></a><span class="lineno"> 2263</span>  <span class="keywordtype">size_t</span> clean_acked_packets = 0;</div>
-<div class="line"><a id="l02264" name="l02264"></a><span class="lineno"> 2264</span> </div>
-<div class="line"><a id="l02265" name="l02265"></a><span class="lineno"> 2265</span>  <span class="comment">/* The are the individual T, N&#39; (RTT, acked_bytes, sent_cwnd_bytes) arguments to pass to on_individual_ack() described</span></div>
-<div class="line"><a id="l02266" name="l02266"></a><span class="lineno"> 2266</span><span class="comment">   * just above in big comment.  We will be accumulating these across all the acks in the loop below. */</span></div>
-<div class="line"><a id="l02267" name="l02267"></a><span class="lineno"> 2267</span>  <span class="keyword">using </span>Clean_acked_packet = tuple&lt;Fine_duration, size_t, size_t&gt;;</div>
-<div class="line"><a id="l02268" name="l02268"></a><span class="lineno"> 2268</span>  vector&lt;Clean_acked_packet&gt; clean_acked_packet_events;</div>
-<div class="line"><a id="l02269" name="l02269"></a><span class="lineno"> 2269</span>  clean_acked_packet_events.reserve(min(acked_packets.size(), snd_flying_pkts_by_when.size())); <span class="comment">// Small optimization.</span></div>
+<div class="line"><a id="l02184" name="l02184"></a><span class="lineno"> 2184</span><span class="comment">   * Now the only remaining thing is to justify combining the ack and drop events in one (each).  For</span></div>
+<div class="line"><a id="l02185" name="l02185"></a><span class="lineno"> 2185</span><span class="comment">   * acknowledgments, it&#39;s straightforward: so far, most Congestion_control_strategy modules</span></div>
+<div class="line"><a id="l02186" name="l02186"></a><span class="lineno"> 2186</span><span class="comment">   * don&#39;t need to know about each individual ack, so for simplicity/efficiency we can just combine</span></div>
+<div class="line"><a id="l02187" name="l02187"></a><span class="lineno"> 2187</span><span class="comment">   * them.  (However, some algorithms do need it; e.g., FAST would need it; still, many don&#39;t.</span></div>
+<div class="line"><a id="l02188" name="l02188"></a><span class="lineno"> 2188</span><span class="comment">   * Other modules, like Send_bandwidth_estimator, may also care about individual acks.)</span></div>
+<div class="line"><a id="l02189" name="l02189"></a><span class="lineno"> 2189</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02190" name="l02190"></a><span class="lineno"> 2190</span><span class="comment">   * What about the drop events?  Why combine all the drops into one?  Should we include all the</span></div>
+<div class="line"><a id="l02191" name="l02191"></a><span class="lineno"> 2191</span><span class="comment">   * drops into the one?  To answer, I use as a reference DCCP CCID 2 RFC 4341 (standards track)</span></div>
+<div class="line"><a id="l02192" name="l02192"></a><span class="lineno"> 2192</span><span class="comment">   * which describes a protocol similar to ours and implies the following model.  Basically, over</span></div>
+<div class="line"><a id="l02193" name="l02193"></a><span class="lineno"> 2193</span><span class="comment">   * time, the pipe experiences a series of 0 or more congestion events (more accurately loss</span></div>
+<div class="line"><a id="l02194" name="l02194"></a><span class="lineno"> 2194</span><span class="comment">   * events).  Two loss events cannot overlap in this implied model.  Thus any given Dropped packet</span></div>
+<div class="line"><a id="l02195" name="l02195"></a><span class="lineno"> 2195</span><span class="comment">   * belongs to exactly one loss event.  Here is how the RFC (section 5) more or less formally</span></div>
+<div class="line"><a id="l02196" name="l02196"></a><span class="lineno"> 2196</span><span class="comment">   * defines whether 2 packets belong to one event: &quot;As in TCP, two losses [...] are considered part</span></div>
+<div class="line"><a id="l02197" name="l02197"></a><span class="lineno"> 2197</span><span class="comment">   * of a single congestion event when the second packet was sent before the loss [...] of the first</span></div>
+<div class="line"><a id="l02198" name="l02198"></a><span class="lineno"> 2198</span><span class="comment">   * packet was detected.&quot;  Presumably the text also assumes that the &quot;second&quot; packet was</span></div>
+<div class="line"><a id="l02199" name="l02199"></a><span class="lineno"> 2199</span><span class="comment">   * found to be dropped either at the same or later time as the &quot;first&quot; packet was found to be</span></div>
+<div class="line"><a id="l02200" name="l02200"></a><span class="lineno"> 2200</span><span class="comment">   * dropped (otherwise the text makes no sense, as the very earliest Dropped packet would be in the</span></div>
+<div class="line"><a id="l02201" name="l02201"></a><span class="lineno"> 2201</span><span class="comment">   * same congestion event as the very last Dropped packed in a very long session).  Let&#39;s build an</span></div>
+<div class="line"><a id="l02202" name="l02202"></a><span class="lineno"> 2202</span><span class="comment">   * algorithm inductively based on this definition.</span></div>
+<div class="line"><a id="l02203" name="l02203"></a><span class="lineno"> 2203</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02204" name="l02204"></a><span class="lineno"> 2204</span><span class="comment">   * At first there are no loss events.  We get a group of acks which render another group of</span></div>
+<div class="line"><a id="l02205" name="l02205"></a><span class="lineno"> 2205</span><span class="comment">   * packets P1, P2, ... (in order of increasing sequence number) Dropped.  Certainly P1 is in a</span></div>
+<div class="line"><a id="l02206" name="l02206"></a><span class="lineno"> 2206</span><span class="comment">   * loss event; call it L1.  P2 was found to be dropped at the same or later time as P1; and it was</span></div>
+<div class="line"><a id="l02207" name="l02207"></a><span class="lineno"> 2207</span><span class="comment">   * obviously sent before L1 was detected (which was NOW; call it T1).  So P2 is in loss event L1.</span></div>
+<div class="line"><a id="l02208" name="l02208"></a><span class="lineno"> 2208</span><span class="comment">   * Similarly, so is P3, P4, ....  Now let&#39;s say some time passes and we get more acks and thus</span></div>
+<div class="line"><a id="l02209" name="l02209"></a><span class="lineno"> 2209</span><span class="comment">   * dropped packets P7, P8, P9, ....  Suppose P7 was sent before T1 (but found Dropped at T2 &gt; T1),</span></div>
+<div class="line"><a id="l02210" name="l02210"></a><span class="lineno"> 2210</span><span class="comment">   * which is quite possible (e.g., T2 could be just after T1).  Then by the above definition P7 is</span></div>
+<div class="line"><a id="l02211" name="l02211"></a><span class="lineno"> 2211</span><span class="comment">   * in loss event L1 (no new loss event).  P8 could be in the same situation.  In fact, all Dropped</span></div>
+<div class="line"><a id="l02212" name="l02212"></a><span class="lineno"> 2212</span><span class="comment">   * packets from this ack group may be in L1.  Suppose, conversely, that P9 was sent AFTER T1.  By</span></div>
+<div class="line"><a id="l02213" name="l02213"></a><span class="lineno"> 2213</span><span class="comment">   * the above definition, it is part of a new loss event L2, detected at T2.  Now P10, is certainly</span></div>
+<div class="line"><a id="l02214" name="l02214"></a><span class="lineno"> 2214</span><span class="comment">   * in L2 as well, since it was sent before T2, obviously.  Thus we can, for each Dropped packet P,</span></div>
+<div class="line"><a id="l02215" name="l02215"></a><span class="lineno"> 2215</span><span class="comment">   * determine whether it&#39;s part of the preceding loss event or part of a new one.</span></div>
+<div class="line"><a id="l02216" name="l02216"></a><span class="lineno"> 2216</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02217" name="l02217"></a><span class="lineno"> 2217</span><span class="comment">   * Intuitively, it makes sense as well.  If, say, we got 5 dropped packets at the same time, and</span></div>
+<div class="line"><a id="l02218" name="l02218"></a><span class="lineno"> 2218</span><span class="comment">   * informed Congestion_control_classic (Reno) with 5 calls to on_loss_event(), then CWND would get</span></div>
+<div class="line"><a id="l02219" name="l02219"></a><span class="lineno"> 2219</span><span class="comment">   * halved 5 times!  Intuitively that&#39;s not right (and way too conservative).  More likely the 5</span></div>
+<div class="line"><a id="l02220" name="l02220"></a><span class="lineno"> 2220</span><span class="comment">   * packets belong to the same congestion or loss event, so CWND should only be halved once.  Then</span></div>
+<div class="line"><a id="l02221" name="l02221"></a><span class="lineno"> 2221</span><span class="comment">   * the only question is how to group packets into separate loss events.  The above algorithm,</span></div>
+<div class="line"><a id="l02222" name="l02222"></a><span class="lineno"> 2222</span><span class="comment">   * roughly speaking, considers two packets as part of the same loss event if they&#39;re within an RTT</span></div>
+<div class="line"><a id="l02223" name="l02223"></a><span class="lineno"> 2223</span><span class="comment">   * of each other (indeed RFC 4341 says one can use the SRTT to approximate the above algorithm,</span></div>
+<div class="line"><a id="l02224" name="l02224"></a><span class="lineno"> 2224</span><span class="comment">   * although we choose to use the exact definition instead).</span></div>
+<div class="line"><a id="l02225" name="l02225"></a><span class="lineno"> 2225</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02226" name="l02226"></a><span class="lineno"> 2226</span><span class="comment">   * Therefore the final algorithm is justified and is as follows:</span></div>
+<div class="line"><a id="l02227" name="l02227"></a><span class="lineno"> 2227</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02228" name="l02228"></a><span class="lineno"> 2228</span><span class="comment">   *   0. Before the current method is ever called, set time stamp m_snd_last_loss_event_when =</span></div>
+<div class="line"><a id="l02229" name="l02229"></a><span class="lineno"> 2229</span><span class="comment">   *      -infinity.</span></div>
+<div class="line"><a id="l02230" name="l02230"></a><span class="lineno"> 2230</span><span class="comment">   *   1. Scan all acknowledgments, updating m_snd_flying_pkts* and m_snd_flying_bytes.</span></div>
+<div class="line"><a id="l02231" name="l02231"></a><span class="lineno"> 2231</span><span class="comment">   *      Keep track of total acknowledgment stats (bytes and packets). (Inform side modules like</span></div>
+<div class="line"><a id="l02232" name="l02232"></a><span class="lineno"> 2232</span><span class="comment">   *      Send_bandwidth_estimator with any required individual ack info like RTTs.)</span></div>
+<div class="line"><a id="l02233" name="l02233"></a><span class="lineno"> 2233</span><span class="comment">   *      Ignore acks of packets not in m_snd_flying_pkts* (not In-flight).</span></div>
+<div class="line"><a id="l02234" name="l02234"></a><span class="lineno"> 2234</span><span class="comment">   *   2. Tally up which packets are exposed as Dropped by the above m_snd_flying_pkts* updates.</span></div>
+<div class="line"><a id="l02235" name="l02235"></a><span class="lineno"> 2235</span><span class="comment">   *      Keep track of total loss stats (bytes and packets).  However, when doing the latter ignore</span></div>
+<div class="line"><a id="l02236" name="l02236"></a><span class="lineno"> 2236</span><span class="comment">   *      any packet P for which P.m_sent_when &lt; m_snd_last_loss_event_when.</span></div>
+<div class="line"><a id="l02237" name="l02237"></a><span class="lineno"> 2237</span><span class="comment">   *   3. If at least 1 packet exposed as Dropped in step 2, call</span></div>
+<div class="line"><a id="l02238" name="l02238"></a><span class="lineno"> 2238</span><span class="comment">   *      m_snd_cong_ctl-&gt;on_loss_event(...stats...); and set m_snd_last_loss_event_when to the current time,</span></div>
+<div class="line"><a id="l02239" name="l02239"></a><span class="lineno"> 2239</span><span class="comment">   *      marking this the start of a new loss event.</span></div>
+<div class="line"><a id="l02240" name="l02240"></a><span class="lineno"> 2240</span><span class="comment">   *   4. If at least 1 packet exposed as Acknowledged in step 1, call</span></div>
+<div class="line"><a id="l02241" name="l02241"></a><span class="lineno"> 2241</span><span class="comment">   *      m_snd_cong_ctl-&gt;on_acks(...stats...). */</span></div>
+<div class="line"><a id="l02242" name="l02242"></a><span class="lineno"> 2242</span> </div>
+<div class="line"><a id="l02243" name="l02243"></a><span class="lineno"> 2243</span>  <span class="comment">// Set up work state and save certain &quot;before&quot; values.</span></div>
+<div class="line"><a id="l02244" name="l02244"></a><span class="lineno"> 2244</span> </div>
+<div class="line"><a id="l02245" name="l02245"></a><span class="lineno"> 2245</span>  <span class="comment">// For RTT at least.  Use steady, high-res clock.  Use one coherent value for entire method to simulate simultaneity.</span></div>
+<div class="line"><a id="l02246" name="l02246"></a><span class="lineno"> 2246</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> time_now = Fine_clock::now();</div>
+<div class="line"><a id="l02247" name="l02247"></a><span class="lineno"> 2247</span> </div>
+<div class="line"><a id="l02248" name="l02248"></a><span class="lineno"> 2248</span>  <span class="comment">// For brevity and a little speed:</span></div>
+<div class="line"><a id="l02249" name="l02249"></a><span class="lineno"> 2249</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> = sock-&gt;rexmit_on();</div>
+<div class="line"><a id="l02250" name="l02250"></a><span class="lineno"> 2250</span>  <span class="keyword">auto</span>&amp; snd_stats = sock-&gt;m_snd_stats;</div>
+<div class="line"><a id="l02251" name="l02251"></a><span class="lineno"> 2251</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
+<div class="line"><a id="l02252" name="l02252"></a><span class="lineno"> 2252</span>  <span class="comment">/* These guys are only stored in Peer_socket (instead of creating locally here) for a bit of performance.  Reuse now.</span></div>
+<div class="line"><a id="l02253" name="l02253"></a><span class="lineno"> 2253</span><span class="comment">   * Note that clear() is a very fast operation; it will essentially just set the internal element count to 0. */</span></div>
+<div class="line"><a id="l02254" name="l02254"></a><span class="lineno"> 2254</span>  <span class="keyword">auto</span>&amp; pkts_marked_to_drop = sock-&gt;m_snd_temp_pkts_marked_to_drop;</div>
+<div class="line"><a id="l02255" name="l02255"></a><span class="lineno"> 2255</span>  pkts_marked_to_drop.clear();</div>
+<div class="line"><a id="l02256" name="l02256"></a><span class="lineno"> 2256</span> </div>
+<div class="line"><a id="l02257" name="l02257"></a><span class="lineno"> 2257</span>  <span class="comment">// To check, at the end, whether we&#39;ve changed can_send() false =&gt; true.</span></div>
+<div class="line"><a id="l02258" name="l02258"></a><span class="lineno"> 2258</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> could_send_before_acks = can_send(sock);</div>
+<div class="line"><a id="l02259" name="l02259"></a><span class="lineno"> 2259</span>  <span class="comment">// To check, at the end, whether we&#39;ve changed snd_deqable() false =&gt; true.</span></div>
+<div class="line"><a id="l02260" name="l02260"></a><span class="lineno"> 2260</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> had_rexmit_data_before_acks = !sock-&gt;m_snd_rexmit_q.empty();</div>
+<div class="line"><a id="l02261" name="l02261"></a><span class="lineno"> 2261</span> </div>
+<div class="line"><a id="l02262" name="l02262"></a><span class="lineno"> 2262</span>  <span class="comment">/* Includes each order number (unique packet ID) for which the packet was acknowledged.</span></div>
+<div class="line"><a id="l02263" name="l02263"></a><span class="lineno"> 2263</span><span class="comment">   * Used for Drop_timer events to register at the bottom; and also to feed the priority queue high_ack_count_q</span></div>
+<div class="line"><a id="l02264" name="l02264"></a><span class="lineno"> 2264</span><span class="comment">   * (explained below in detail). */</span></div>
+<div class="line"><a id="l02265" name="l02265"></a><span class="lineno"> 2265</span>  unordered_set&lt;Peer_socket::order_num_t&gt; flying_now_acked_pkts;</div>
+<div class="line"><a id="l02266" name="l02266"></a><span class="lineno"> 2266</span> </div>
+<div class="line"><a id="l02267" name="l02267"></a><span class="lineno"> 2267</span>  <span class="comment">// These are the N, M arguments to on_acks() described just above in big comment.</span></div>
+<div class="line"><a id="l02268" name="l02268"></a><span class="lineno"> 2268</span>  <span class="keywordtype">size_t</span> clean_acked_bytes = 0;</div>
+<div class="line"><a id="l02269" name="l02269"></a><span class="lineno"> 2269</span>  <span class="keywordtype">size_t</span> clean_acked_packets = 0;</div>
 <div class="line"><a id="l02270" name="l02270"></a><span class="lineno"> 2270</span> </div>
-<div class="line"><a id="l02271" name="l02271"></a><span class="lineno"> 2271</span>  <span class="comment">/* Handle each acknowledgment in the order that the corresponding packet was received by other</span></div>
-<div class="line"><a id="l02272" name="l02272"></a><span class="lineno"> 2272</span><span class="comment">   * side (earliest to latest) per above discussion. */</span></div>
-<div class="line"><a id="l02273" name="l02273"></a><span class="lineno"> 2273</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">Ack_packet::Individual_ack::Const_ptr</a> ack : acked_packets)</div>
-<div class="line"><a id="l02274" name="l02274"></a><span class="lineno"> 2274</span>  {</div>
-<div class="line"><a id="l02275" name="l02275"></a><span class="lineno"> 2275</span>    <span class="comment">/* Use helper to classify this individual ack as one of the following:</span></div>
-<div class="line"><a id="l02276" name="l02276"></a><span class="lineno"> 2276</span><span class="comment">     *   - Malformed/illegal. =&gt; error_ack is true. Else:</span></div>
-<div class="line"><a id="l02277" name="l02277"></a><span class="lineno"> 2277</span><span class="comment">     *   - Legal but referring to an already-acknowledged packet, or arriving too late. =&gt; dupe_or_late is true.</span></div>
-<div class="line"><a id="l02278" name="l02278"></a><span class="lineno"> 2278</span><span class="comment">     *     - The packet being acknowledged is unknown. =&gt; flying_pkt_it == past_oldest() (a/k/a end()).</span></div>
-<div class="line"><a id="l02279" name="l02279"></a><span class="lineno"> 2279</span><span class="comment">     *     - The packet being acknowledged is known. =&gt; flying_pkt_it points to that acked packet.</span></div>
-<div class="line"><a id="l02280" name="l02280"></a><span class="lineno"> 2280</span><span class="comment">     *   - Legal and acking a not-yet-acked packet, arriving in time. =&gt; dupe_or_late is false.</span></div>
-<div class="line"><a id="l02281" name="l02281"></a><span class="lineno"> 2281</span><span class="comment">     *                                                                =&gt; flying_pkt_it points to that acked packet.</span></div>
-<div class="line"><a id="l02282" name="l02282"></a><span class="lineno"> 2282</span><span class="comment">     * Note: The helper takes care of snd_stats updating, closing socket on error, and relevant logging. */</span></div>
-<div class="line"><a id="l02283" name="l02283"></a><span class="lineno"> 2283</span> </div>
-<div class="line"><a id="l02284" name="l02284"></a><span class="lineno"> 2284</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a> flying_pkt_it;</div>
-<div class="line"><a id="l02285" name="l02285"></a><span class="lineno"> 2285</span>    <span class="keywordtype">bool</span> dupe_or_late;</div>
-<div class="line"><a id="l02286" name="l02286"></a><span class="lineno"> 2286</span> </div>
-<div class="line"><a id="l02287" name="l02287"></a><span class="lineno"> 2287</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> error_ack = !categorize_individual_ack(socket_id, sock, ack, &amp;dupe_or_late, &amp;flying_pkt_it);</div>
-<div class="line"><a id="l02288" name="l02288"></a><span class="lineno"> 2288</span>    <span class="keywordflow">if</span> (error_ack)</div>
-<div class="line"><a id="l02289" name="l02289"></a><span class="lineno"> 2289</span>    {</div>
-<div class="line"><a id="l02290" name="l02290"></a><span class="lineno"> 2290</span>      <span class="keywordflow">return</span>; <span class="comment">// Fatal error for entire socket (malformed ack, etc.).  Socket is closed; all logged; bail out now.</span></div>
-<div class="line"><a id="l02291" name="l02291"></a><span class="lineno"> 2291</span>    }</div>
-<div class="line"><a id="l02292" name="l02292"></a><span class="lineno"> 2292</span>    <span class="comment">// else</span></div>
-<div class="line"><a id="l02293" name="l02293"></a><span class="lineno"> 2293</span> </div>
-<div class="line"><a id="l02294" name="l02294"></a><span class="lineno"> 2294</span>    <span class="comment">// Note these may never be initialized.</span></div>
-<div class="line"><a id="l02295" name="l02295"></a><span class="lineno"> 2295</span>    <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> round_trip_time;</div>
-<div class="line"><a id="l02296" name="l02296"></a><span class="lineno"> 2296</span>    <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Sent_packet::Const_ptr</a> flying_pkt;</div>
-<div class="line"><a id="l02297" name="l02297"></a><span class="lineno"> 2297</span>    <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Peer_socket::Sent_packet::Sent_when</a>* sent_when;</div>
-<div class="line"><a id="l02298" name="l02298"></a><span class="lineno"> 2298</span> </div>
-<div class="line"><a id="l02299" name="l02299"></a><span class="lineno"> 2299</span>    <span class="comment">// Compute RTT, assuming we ID&#39;ed the original DATA.  (RTT logged even if we still throw away the ack just below.)</span></div>
-<div class="line"><a id="l02300" name="l02300"></a><span class="lineno"> 2300</span>    <span class="keywordflow">if</span> (flying_pkt_it != snd_flying_pkts_by_when.past_oldest())</div>
-<div class="line"><a id="l02301" name="l02301"></a><span class="lineno"> 2301</span>    {</div>
-<div class="line"><a id="l02302" name="l02302"></a><span class="lineno"> 2302</span>      <span class="comment">// Use helper to compute RTT and, as a side effect, get `Sent_when* sent_when` set to point to appriate structure.</span></div>
-<div class="line"><a id="l02303" name="l02303"></a><span class="lineno"> 2303</span>      flying_pkt = flying_pkt_it-&gt;second;</div>
-<div class="line"><a id="l02304" name="l02304"></a><span class="lineno"> 2304</span>      round_trip_time = compute_rtt_on_ack(flying_pkt, time_now, ack, &amp;sent_when); <span class="comment">// It logs details.</span></div>
-<div class="line"><a id="l02305" name="l02305"></a><span class="lineno"> 2305</span>    } <span class="comment">// Done computing (if possible) RTT and logging it.</span></div>
-<div class="line"><a id="l02306" name="l02306"></a><span class="lineno"> 2306</span> </div>
-<div class="line"><a id="l02307" name="l02307"></a><span class="lineno"> 2307</span>    <span class="keywordflow">if</span> (dupe_or_late)</div>
-<div class="line"><a id="l02308" name="l02308"></a><span class="lineno"> 2308</span>    {</div>
-<div class="line"><a id="l02309" name="l02309"></a><span class="lineno"> 2309</span>      <span class="keywordflow">continue</span>; <span class="comment">// Do NOT return!  There may well be valid individual acks after it.  All logged; get out now.</span></div>
-<div class="line"><a id="l02310" name="l02310"></a><span class="lineno"> 2310</span>    }</div>
-<div class="line"><a id="l02311" name="l02311"></a><span class="lineno"> 2311</span> </div>
-<div class="line"><a id="l02312" name="l02312"></a><span class="lineno"> 2312</span>    <span class="comment">// else it&#39;s an in-time acking of DATA packet that has not yet been acked (is considered In-flight)!</span></div>
-<div class="line"><a id="l02313" name="l02313"></a><span class="lineno"> 2313</span>    assert(!dupe_or_late);</div>
-<div class="line"><a id="l02314" name="l02314"></a><span class="lineno"> 2314</span>    <span class="comment">// The following is guaranteed by helper above, since !dupe_or_late. Hence, also, flying_pkt, sent_when, RTT set.</span></div>
-<div class="line"><a id="l02315" name="l02315"></a><span class="lineno"> 2315</span>    assert(flying_pkt_it != snd_flying_pkts_by_when.past_oldest());</div>
-<div class="line"><a id="l02316" name="l02316"></a><span class="lineno"> 2316</span>    assert(flying_pkt);</div>
+<div class="line"><a id="l02271" name="l02271"></a><span class="lineno"> 2271</span>  <span class="comment">/* The are the individual T, N&#39; (RTT, acked_bytes, sent_cwnd_bytes) arguments to pass to on_individual_ack() described</span></div>
+<div class="line"><a id="l02272" name="l02272"></a><span class="lineno"> 2272</span><span class="comment">   * just above in big comment.  We will be accumulating these across all the acks in the loop below. */</span></div>
+<div class="line"><a id="l02273" name="l02273"></a><span class="lineno"> 2273</span>  <span class="keyword">using </span>Clean_acked_packet = tuple&lt;Fine_duration, size_t, size_t&gt;;</div>
+<div class="line"><a id="l02274" name="l02274"></a><span class="lineno"> 2274</span>  vector&lt;Clean_acked_packet&gt; clean_acked_packet_events;</div>
+<div class="line"><a id="l02275" name="l02275"></a><span class="lineno"> 2275</span>  clean_acked_packet_events.reserve(min(acked_packets.size(), snd_flying_pkts_by_when.size())); <span class="comment">// Small optimization.</span></div>
+<div class="line"><a id="l02276" name="l02276"></a><span class="lineno"> 2276</span> </div>
+<div class="line"><a id="l02277" name="l02277"></a><span class="lineno"> 2277</span>  <span class="comment">/* Handle each acknowledgment in the order that the corresponding packet was received by other</span></div>
+<div class="line"><a id="l02278" name="l02278"></a><span class="lineno"> 2278</span><span class="comment">   * side (earliest to latest) per above discussion. */</span></div>
+<div class="line"><a id="l02279" name="l02279"></a><span class="lineno"> 2279</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">Ack_packet::Individual_ack::Const_ptr</a> ack : acked_packets)</div>
+<div class="line"><a id="l02280" name="l02280"></a><span class="lineno"> 2280</span>  {</div>
+<div class="line"><a id="l02281" name="l02281"></a><span class="lineno"> 2281</span>    <span class="comment">/* Use helper to classify this individual ack as one of the following:</span></div>
+<div class="line"><a id="l02282" name="l02282"></a><span class="lineno"> 2282</span><span class="comment">     *   - Malformed/illegal. =&gt; error_ack is true. Else:</span></div>
+<div class="line"><a id="l02283" name="l02283"></a><span class="lineno"> 2283</span><span class="comment">     *   - Legal but referring to an already-acknowledged packet, or arriving too late. =&gt; dupe_or_late is true.</span></div>
+<div class="line"><a id="l02284" name="l02284"></a><span class="lineno"> 2284</span><span class="comment">     *     - The packet being acknowledged is unknown. =&gt; flying_pkt_it == past_oldest() (a/k/a end()).</span></div>
+<div class="line"><a id="l02285" name="l02285"></a><span class="lineno"> 2285</span><span class="comment">     *     - The packet being acknowledged is known. =&gt; flying_pkt_it points to that acked packet.</span></div>
+<div class="line"><a id="l02286" name="l02286"></a><span class="lineno"> 2286</span><span class="comment">     *   - Legal and acking a not-yet-acked packet, arriving in time. =&gt; dupe_or_late is false.</span></div>
+<div class="line"><a id="l02287" name="l02287"></a><span class="lineno"> 2287</span><span class="comment">     *                                                                =&gt; flying_pkt_it points to that acked packet.</span></div>
+<div class="line"><a id="l02288" name="l02288"></a><span class="lineno"> 2288</span><span class="comment">     * Note: The helper takes care of snd_stats updating, closing socket on error, and relevant logging. */</span></div>
+<div class="line"><a id="l02289" name="l02289"></a><span class="lineno"> 2289</span> </div>
+<div class="line"><a id="l02290" name="l02290"></a><span class="lineno"> 2290</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a> flying_pkt_it;</div>
+<div class="line"><a id="l02291" name="l02291"></a><span class="lineno"> 2291</span>    <span class="keywordtype">bool</span> dupe_or_late;</div>
+<div class="line"><a id="l02292" name="l02292"></a><span class="lineno"> 2292</span> </div>
+<div class="line"><a id="l02293" name="l02293"></a><span class="lineno"> 2293</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> error_ack = !categorize_individual_ack(socket_id, sock, ack, &amp;dupe_or_late, &amp;flying_pkt_it);</div>
+<div class="line"><a id="l02294" name="l02294"></a><span class="lineno"> 2294</span>    <span class="keywordflow">if</span> (error_ack)</div>
+<div class="line"><a id="l02295" name="l02295"></a><span class="lineno"> 2295</span>    {</div>
+<div class="line"><a id="l02296" name="l02296"></a><span class="lineno"> 2296</span>      <span class="keywordflow">return</span>; <span class="comment">// Fatal error for entire socket (malformed ack, etc.).  Socket is closed; all logged; bail out now.</span></div>
+<div class="line"><a id="l02297" name="l02297"></a><span class="lineno"> 2297</span>    }</div>
+<div class="line"><a id="l02298" name="l02298"></a><span class="lineno"> 2298</span>    <span class="comment">// else</span></div>
+<div class="line"><a id="l02299" name="l02299"></a><span class="lineno"> 2299</span> </div>
+<div class="line"><a id="l02300" name="l02300"></a><span class="lineno"> 2300</span>    <span class="comment">// Note these may never be initialized.</span></div>
+<div class="line"><a id="l02301" name="l02301"></a><span class="lineno"> 2301</span>    <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> round_trip_time;</div>
+<div class="line"><a id="l02302" name="l02302"></a><span class="lineno"> 2302</span>    <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Sent_packet::Const_ptr</a> flying_pkt;</div>
+<div class="line"><a id="l02303" name="l02303"></a><span class="lineno"> 2303</span>    <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Peer_socket::Sent_packet::Sent_when</a>* sent_when;</div>
+<div class="line"><a id="l02304" name="l02304"></a><span class="lineno"> 2304</span> </div>
+<div class="line"><a id="l02305" name="l02305"></a><span class="lineno"> 2305</span>    <span class="comment">// Compute RTT, assuming we ID&#39;ed the original DATA.  (RTT logged even if we still throw away the ack just below.)</span></div>
+<div class="line"><a id="l02306" name="l02306"></a><span class="lineno"> 2306</span>    <span class="keywordflow">if</span> (flying_pkt_it != snd_flying_pkts_by_when.past_oldest())</div>
+<div class="line"><a id="l02307" name="l02307"></a><span class="lineno"> 2307</span>    {</div>
+<div class="line"><a id="l02308" name="l02308"></a><span class="lineno"> 2308</span>      <span class="comment">// Use helper to compute RTT and, as a side effect, get `Sent_when* sent_when` set to point to appriate structure.</span></div>
+<div class="line"><a id="l02309" name="l02309"></a><span class="lineno"> 2309</span>      flying_pkt = flying_pkt_it-&gt;second;</div>
+<div class="line"><a id="l02310" name="l02310"></a><span class="lineno"> 2310</span>      round_trip_time = compute_rtt_on_ack(flying_pkt, time_now, ack, &amp;sent_when); <span class="comment">// It logs details.</span></div>
+<div class="line"><a id="l02311" name="l02311"></a><span class="lineno"> 2311</span>    } <span class="comment">// Done computing (if possible) RTT and logging it.</span></div>
+<div class="line"><a id="l02312" name="l02312"></a><span class="lineno"> 2312</span> </div>
+<div class="line"><a id="l02313" name="l02313"></a><span class="lineno"> 2313</span>    <span class="keywordflow">if</span> (dupe_or_late)</div>
+<div class="line"><a id="l02314" name="l02314"></a><span class="lineno"> 2314</span>    {</div>
+<div class="line"><a id="l02315" name="l02315"></a><span class="lineno"> 2315</span>      <span class="keywordflow">continue</span>; <span class="comment">// Do NOT return!  There may well be valid individual acks after it.  All logged; get out now.</span></div>
+<div class="line"><a id="l02316" name="l02316"></a><span class="lineno"> 2316</span>    }</div>
 <div class="line"><a id="l02317" name="l02317"></a><span class="lineno"> 2317</span> </div>
-<div class="line"><a id="l02318" name="l02318"></a><span class="lineno"> 2318</span>    <span class="comment">// Update SRTT, etc.</span></div>
-<div class="line"><a id="l02319" name="l02319"></a><span class="lineno"> 2319</span>    new_round_trip_time_sample(sock, round_trip_time);</div>
-<div class="line"><a id="l02320" name="l02320"></a><span class="lineno"> 2320</span> </div>
-<div class="line"><a id="l02321" name="l02321"></a><span class="lineno"> 2321</span>    <span class="comment">/* Similarly, inform congestion control (see big comment at top of method).  Some strategies</span></div>
-<div class="line"><a id="l02322" name="l02322"></a><span class="lineno"> 2322</span><span class="comment">     * use individual acks to gauge the pipe&#39;s properties.  Save the info to</span></div>
-<div class="line"><a id="l02323" name="l02323"></a><span class="lineno"> 2323</span><span class="comment">     * later call on_individual_ack().  Why not just call</span></div>
-<div class="line"><a id="l02324" name="l02324"></a><span class="lineno"> 2324</span><span class="comment">     * it here?  Answer: Congestion_control_strategy interface specifies that</span></div>
-<div class="line"><a id="l02325" name="l02325"></a><span class="lineno"> 2325</span><span class="comment">     * on_individual_ack() must be called AFTER on_loss_event() (which can only be called once</span></div>
-<div class="line"><a id="l02326" name="l02326"></a><span class="lineno"> 2326</span><span class="comment">     * we&#39;ve fully updated snd_flying_pkts, thus handled all acks).  It also specifies that</span></div>
-<div class="line"><a id="l02327" name="l02327"></a><span class="lineno"> 2327</span><span class="comment">     * snd_flying_pkts must be updated to reflect the handled ack.  So we have no choice but</span></div>
-<div class="line"><a id="l02328" name="l02328"></a><span class="lineno"> 2328</span><span class="comment">     * to save it.  (@todo Performance?) */</span></div>
-<div class="line"><a id="l02329" name="l02329"></a><span class="lineno"> 2329</span>    <span class="keyword">const</span> <span class="keywordtype">size_t</span> bytes_acked = flying_pkt-&gt;m_size;</div>
-<div class="line"><a id="l02330" name="l02330"></a><span class="lineno"> 2330</span>    <span class="keyword">const</span> <span class="keywordtype">size_t</span> cwnd_bytes = sent_when-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#abc5bf2e627dad5d2dcfb0324853b37f7">m_sent_cwnd_bytes</a>;</div>
-<div class="line"><a id="l02331" name="l02331"></a><span class="lineno"> 2331</span>    clean_acked_packet_events.emplace_back(round_trip_time, bytes_acked, cwnd_bytes);</div>
-<div class="line"><a id="l02332" name="l02332"></a><span class="lineno"> 2332</span> </div>
-<div class="line"><a id="l02333" name="l02333"></a><span class="lineno"> 2333</span>    <span class="comment">// Maintain invariant.  Packet acknowledged, so remove from In-flight packet list and related structures.</span></div>
-<div class="line"><a id="l02334" name="l02334"></a><span class="lineno"> 2334</span>    snd_flying_pkts_erase_one(sock, flying_pkt_it);</div>
-<div class="line"><a id="l02335" name="l02335"></a><span class="lineno"> 2335</span> </div>
-<div class="line"><a id="l02336" name="l02336"></a><span class="lineno"> 2336</span>    <span class="comment">// Bona fide In-flight-&gt;Acknowledged data; accumulate to inform congestion control below.</span></div>
-<div class="line"><a id="l02337" name="l02337"></a><span class="lineno"> 2337</span>    clean_acked_bytes += bytes_acked;</div>
-<div class="line"><a id="l02338" name="l02338"></a><span class="lineno"> 2338</span>    ++clean_acked_packets;</div>
-<div class="line"><a id="l02339" name="l02339"></a><span class="lineno"> 2339</span> </div>
-<div class="line"><a id="l02340" name="l02340"></a><span class="lineno"> 2340</span>    <span class="comment">/* If we got here, then it is in fact what we consider a valid acknowledgment of packet</span></div>
-<div class="line"><a id="l02341" name="l02341"></a><span class="lineno"> 2341</span><span class="comment">     * sent at time sent_when.  Therefore, we should increment m_acks_after_me for any packet that has NOT</span></div>
-<div class="line"><a id="l02342" name="l02342"></a><span class="lineno"> 2342</span><span class="comment">     * been acknowledged that was sent earlier than sent_when.  (Later we&#39;d consider Dropped any</span></div>
-<div class="line"><a id="l02343" name="l02343"></a><span class="lineno"> 2343</span><span class="comment">     * packets for which this value is too high, as in TCP Fast Recovery/Retransmit.)  Note that if</span></div>
-<div class="line"><a id="l02344" name="l02344"></a><span class="lineno"> 2344</span><span class="comment">     * retransmission is off, that&#39;s the same as all packets with a lower first sequence number.</span></div>
-<div class="line"><a id="l02345" name="l02345"></a><span class="lineno"> 2345</span><span class="comment">     * However if retransmission is on, then a packet may have a lower sequence number but be sent</span></div>
-<div class="line"><a id="l02346" name="l02346"></a><span class="lineno"> 2346</span><span class="comment">     * later.  Thus we use sent_when and not seq_num.</span></div>
-<div class="line"><a id="l02347" name="l02347"></a><span class="lineno"> 2347</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02348" name="l02348"></a><span class="lineno"> 2348</span><span class="comment">     * Naively, we could just have a for () loop here to increment all such data members.  However</span></div>
-<div class="line"><a id="l02349" name="l02349"></a><span class="lineno"> 2349</span><span class="comment">     * that&#39;s inefficient -- order O(k * n), where k = acked_packets.size() and n =</span></div>
-<div class="line"><a id="l02350" name="l02350"></a><span class="lineno"> 2350</span><span class="comment">     * snd_flying_pkts*.size(), in the worst case.  Moreover, some of the Sent_packet structs in</span></div>
-<div class="line"><a id="l02351" name="l02351"></a><span class="lineno"> 2351</span><span class="comment">     * which we increment m_acks_after_me may be acknowledged and thus erased from snd_flying_pkts*</span></div>
-<div class="line"><a id="l02352" name="l02352"></a><span class="lineno"> 2352</span><span class="comment">     * in subsequent iterations of the for () loop we are in, wasting that work.</span></div>
+<div class="line"><a id="l02318" name="l02318"></a><span class="lineno"> 2318</span>    <span class="comment">// else it&#39;s an in-time acking of DATA packet that has not yet been acked (is considered In-flight)!</span></div>
+<div class="line"><a id="l02319" name="l02319"></a><span class="lineno"> 2319</span>    assert(!dupe_or_late);</div>
+<div class="line"><a id="l02320" name="l02320"></a><span class="lineno"> 2320</span>    <span class="comment">// The following is guaranteed by helper above, since !dupe_or_late. Hence, also, flying_pkt, sent_when, RTT set.</span></div>
+<div class="line"><a id="l02321" name="l02321"></a><span class="lineno"> 2321</span>    assert(flying_pkt_it != snd_flying_pkts_by_when.past_oldest());</div>
+<div class="line"><a id="l02322" name="l02322"></a><span class="lineno"> 2322</span>    assert(flying_pkt);</div>
+<div class="line"><a id="l02323" name="l02323"></a><span class="lineno"> 2323</span> </div>
+<div class="line"><a id="l02324" name="l02324"></a><span class="lineno"> 2324</span>    <span class="comment">// Update SRTT, etc.</span></div>
+<div class="line"><a id="l02325" name="l02325"></a><span class="lineno"> 2325</span>    new_round_trip_time_sample(sock, round_trip_time);</div>
+<div class="line"><a id="l02326" name="l02326"></a><span class="lineno"> 2326</span> </div>
+<div class="line"><a id="l02327" name="l02327"></a><span class="lineno"> 2327</span>    <span class="comment">/* Similarly, inform congestion control (see big comment at top of method).  Some strategies</span></div>
+<div class="line"><a id="l02328" name="l02328"></a><span class="lineno"> 2328</span><span class="comment">     * use individual acks to gauge the pipe&#39;s properties.  Save the info to</span></div>
+<div class="line"><a id="l02329" name="l02329"></a><span class="lineno"> 2329</span><span class="comment">     * later call on_individual_ack().  Why not just call</span></div>
+<div class="line"><a id="l02330" name="l02330"></a><span class="lineno"> 2330</span><span class="comment">     * it here?  Answer: Congestion_control_strategy interface specifies that</span></div>
+<div class="line"><a id="l02331" name="l02331"></a><span class="lineno"> 2331</span><span class="comment">     * on_individual_ack() must be called AFTER on_loss_event() (which can only be called once</span></div>
+<div class="line"><a id="l02332" name="l02332"></a><span class="lineno"> 2332</span><span class="comment">     * we&#39;ve fully updated snd_flying_pkts, thus handled all acks).  It also specifies that</span></div>
+<div class="line"><a id="l02333" name="l02333"></a><span class="lineno"> 2333</span><span class="comment">     * snd_flying_pkts must be updated to reflect the handled ack.  So we have no choice but</span></div>
+<div class="line"><a id="l02334" name="l02334"></a><span class="lineno"> 2334</span><span class="comment">     * to save it.  (@todo Performance?) */</span></div>
+<div class="line"><a id="l02335" name="l02335"></a><span class="lineno"> 2335</span>    <span class="keyword">const</span> <span class="keywordtype">size_t</span> bytes_acked = flying_pkt-&gt;m_size;</div>
+<div class="line"><a id="l02336" name="l02336"></a><span class="lineno"> 2336</span>    <span class="keyword">const</span> <span class="keywordtype">size_t</span> cwnd_bytes = sent_when-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#abc5bf2e627dad5d2dcfb0324853b37f7">m_sent_cwnd_bytes</a>;</div>
+<div class="line"><a id="l02337" name="l02337"></a><span class="lineno"> 2337</span>    clean_acked_packet_events.emplace_back(round_trip_time, bytes_acked, cwnd_bytes);</div>
+<div class="line"><a id="l02338" name="l02338"></a><span class="lineno"> 2338</span> </div>
+<div class="line"><a id="l02339" name="l02339"></a><span class="lineno"> 2339</span>    <span class="comment">// Maintain invariant.  Packet acknowledged, so remove from In-flight packet list and related structures.</span></div>
+<div class="line"><a id="l02340" name="l02340"></a><span class="lineno"> 2340</span>    snd_flying_pkts_erase_one(sock, flying_pkt_it);</div>
+<div class="line"><a id="l02341" name="l02341"></a><span class="lineno"> 2341</span> </div>
+<div class="line"><a id="l02342" name="l02342"></a><span class="lineno"> 2342</span>    <span class="comment">// Bona fide In-flight-&gt;Acknowledged data; accumulate to inform congestion control below.</span></div>
+<div class="line"><a id="l02343" name="l02343"></a><span class="lineno"> 2343</span>    clean_acked_bytes += bytes_acked;</div>
+<div class="line"><a id="l02344" name="l02344"></a><span class="lineno"> 2344</span>    ++clean_acked_packets;</div>
+<div class="line"><a id="l02345" name="l02345"></a><span class="lineno"> 2345</span> </div>
+<div class="line"><a id="l02346" name="l02346"></a><span class="lineno"> 2346</span>    <span class="comment">/* If we got here, then it is in fact what we consider a valid acknowledgment of packet</span></div>
+<div class="line"><a id="l02347" name="l02347"></a><span class="lineno"> 2347</span><span class="comment">     * sent at time sent_when.  Therefore, we should increment m_acks_after_me for any packet that has NOT</span></div>
+<div class="line"><a id="l02348" name="l02348"></a><span class="lineno"> 2348</span><span class="comment">     * been acknowledged that was sent earlier than sent_when.  (Later we&#39;d consider Dropped any</span></div>
+<div class="line"><a id="l02349" name="l02349"></a><span class="lineno"> 2349</span><span class="comment">     * packets for which this value is too high, as in TCP Fast Recovery/Retransmit.)  Note that if</span></div>
+<div class="line"><a id="l02350" name="l02350"></a><span class="lineno"> 2350</span><span class="comment">     * retransmission is off, that&#39;s the same as all packets with a lower first sequence number.</span></div>
+<div class="line"><a id="l02351" name="l02351"></a><span class="lineno"> 2351</span><span class="comment">     * However if retransmission is on, then a packet may have a lower sequence number but be sent</span></div>
+<div class="line"><a id="l02352" name="l02352"></a><span class="lineno"> 2352</span><span class="comment">     * later.  Thus we use sent_when and not seq_num.</span></div>
 <div class="line"><a id="l02353" name="l02353"></a><span class="lineno"> 2353</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02354" name="l02354"></a><span class="lineno"> 2354</span><span class="comment">     * So instead we count the individual acks in a hash map that maps sent_when to the number of</span></div>
-<div class="line"><a id="l02355" name="l02355"></a><span class="lineno"> 2355</span><span class="comment">     * times (in this ACK) that sequence number&#39;s packet was validly acknowledged.  This is O(k)</span></div>
-<div class="line"><a id="l02356" name="l02356"></a><span class="lineno"> 2356</span><span class="comment">     * amortized total.  Then elsewhere we use that hash map to more efficiently update m_acks_after_me</span></div>
-<div class="line"><a id="l02357" name="l02357"></a><span class="lineno"> 2357</span><span class="comment">     * where appropriate.  In addition, this hash map is used to register certain Drop_timer</span></div>
-<div class="line"><a id="l02358" name="l02358"></a><span class="lineno"> 2358</span><span class="comment">     * at the end of the method. */</span></div>
-<div class="line"><a id="l02359" name="l02359"></a><span class="lineno"> 2359</span> </div>
-<div class="line"><a id="l02360" name="l02360"></a><span class="lineno"> 2360</span>    <span class="comment">/* Note that we track these by &quot;order number&quot;; each sent packet (no matter if retransmitted or</span></div>
-<div class="line"><a id="l02361" name="l02361"></a><span class="lineno"> 2361</span><span class="comment">     * not) gets a unique order number, higher than all previous.  Since no two packets will have</span></div>
-<div class="line"><a id="l02362" name="l02362"></a><span class="lineno"> 2362</span><span class="comment">     * the same order number, we keep a set of order numbers. */</span></div>
-<div class="line"><a id="l02363" name="l02363"></a><span class="lineno"> 2363</span>    flying_now_acked_pkts.insert(sent_when-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">m_order_num</a>);</div>
-<div class="line"><a id="l02364" name="l02364"></a><span class="lineno"> 2364</span>  } <span class="comment">// for (all acked_packets)</span></div>
+<div class="line"><a id="l02354" name="l02354"></a><span class="lineno"> 2354</span><span class="comment">     * Naively, we could just have a for () loop here to increment all such data members.  However</span></div>
+<div class="line"><a id="l02355" name="l02355"></a><span class="lineno"> 2355</span><span class="comment">     * that&#39;s inefficient -- order O(k * n), where k = acked_packets.size() and n =</span></div>
+<div class="line"><a id="l02356" name="l02356"></a><span class="lineno"> 2356</span><span class="comment">     * snd_flying_pkts*.size(), in the worst case.  Moreover, some of the Sent_packet structs in</span></div>
+<div class="line"><a id="l02357" name="l02357"></a><span class="lineno"> 2357</span><span class="comment">     * which we increment m_acks_after_me may be acknowledged and thus erased from snd_flying_pkts*</span></div>
+<div class="line"><a id="l02358" name="l02358"></a><span class="lineno"> 2358</span><span class="comment">     * in subsequent iterations of the for () loop we are in, wasting that work.</span></div>
+<div class="line"><a id="l02359" name="l02359"></a><span class="lineno"> 2359</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02360" name="l02360"></a><span class="lineno"> 2360</span><span class="comment">     * So instead we count the individual acks in a hash map that maps sent_when to the number of</span></div>
+<div class="line"><a id="l02361" name="l02361"></a><span class="lineno"> 2361</span><span class="comment">     * times (in this ACK) that sequence number&#39;s packet was validly acknowledged.  This is O(k)</span></div>
+<div class="line"><a id="l02362" name="l02362"></a><span class="lineno"> 2362</span><span class="comment">     * amortized total.  Then elsewhere we use that hash map to more efficiently update m_acks_after_me</span></div>
+<div class="line"><a id="l02363" name="l02363"></a><span class="lineno"> 2363</span><span class="comment">     * where appropriate.  In addition, this hash map is used to register certain Drop_timer</span></div>
+<div class="line"><a id="l02364" name="l02364"></a><span class="lineno"> 2364</span><span class="comment">     * at the end of the method. */</span></div>
 <div class="line"><a id="l02365" name="l02365"></a><span class="lineno"> 2365</span> </div>
-<div class="line"><a id="l02366" name="l02366"></a><span class="lineno"> 2366</span>  <span class="comment">/* snd_flying_pkts* is updated w/r/t removing the In-flight-now-acked packets.  Now, realize that</span></div>
-<div class="line"><a id="l02367" name="l02367"></a><span class="lineno"> 2367</span><span class="comment">   * for a given packet P still In-flight, if packets sent BEFORE it have just become acked, intuitively</span></div>
-<div class="line"><a id="l02368" name="l02368"></a><span class="lineno"> 2368</span><span class="comment">   * it raises the probability P has been lost and should be considered Dropped.  In fact, as explained in</span></div>
-<div class="line"><a id="l02369" name="l02369"></a><span class="lineno"> 2369</span><span class="comment">   * helper categorize_pkts_as_dropped_on_acks(), if one finds the latest-sent such packet P, then all</span></div>
-<div class="line"><a id="l02370" name="l02370"></a><span class="lineno"> 2370</span><span class="comment">   * packets sent before it should all be dropped as well.  So, let&#39;s find this latest-sent P: */</span></div>
-<div class="line"><a id="l02371" name="l02371"></a><span class="lineno"> 2371</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a> last_dropped_pkt_it</div>
-<div class="line"><a id="l02372" name="l02372"></a><span class="lineno"> 2372</span>    = categorize_pkts_as_dropped_on_acks(sock, flying_now_acked_pkts);</div>
-<div class="line"><a id="l02373" name="l02373"></a><span class="lineno"> 2373</span> </div>
-<div class="line"><a id="l02374" name="l02374"></a><span class="lineno"> 2374</span>  <span class="comment">/* OK, so P and all In-flight packets sent before it must be dropped.  This helper takes all the actions</span></div>
-<div class="line"><a id="l02375" name="l02375"></a><span class="lineno"> 2375</span><span class="comment">   * necessary (or at least records data we use to take such actions below) w/r/t all those packets.</span></div>
-<div class="line"><a id="l02376" name="l02376"></a><span class="lineno"> 2376</span><span class="comment">   * Namely: erases them from snd_flying_pkts*; accumulates packet and bytes counts to do with these</span></div>
-<div class="line"><a id="l02377" name="l02377"></a><span class="lineno"> 2377</span><span class="comment">   * dropped packets; saves the packet IDs from Drop timer purposes into pkts_marked_to_drop. */</span></div>
-<div class="line"><a id="l02378" name="l02378"></a><span class="lineno"> 2378</span>  <span class="keywordtype">size_t</span> dropped_pkts;</div>
-<div class="line"><a id="l02379" name="l02379"></a><span class="lineno"> 2379</span>  <span class="keywordtype">size_t</span> dropped_bytes;</div>
-<div class="line"><a id="l02380" name="l02380"></a><span class="lineno"> 2380</span>  <span class="keywordtype">size_t</span> cong_ctl_dropped_bytes;</div>
-<div class="line"><a id="l02381" name="l02381"></a><span class="lineno"> 2381</span>  <span class="keywordtype">size_t</span> cong_ctl_dropped_pkts;</div>
-<div class="line"><a id="l02382" name="l02382"></a><span class="lineno"> 2382</span>  <span class="keywordflow">if</span> (!drop_pkts_on_acks(sock, last_dropped_pkt_it,</div>
-<div class="line"><a id="l02383" name="l02383"></a><span class="lineno"> 2383</span>                         &amp;cong_ctl_dropped_pkts, &amp;cong_ctl_dropped_bytes,</div>
-<div class="line"><a id="l02384" name="l02384"></a><span class="lineno"> 2384</span>                         &amp;dropped_pkts, &amp;dropped_bytes, &amp;pkts_marked_to_drop))</div>
-<div class="line"><a id="l02385" name="l02385"></a><span class="lineno"> 2385</span>  {</div>
-<div class="line"><a id="l02386" name="l02386"></a><span class="lineno"> 2386</span>    <span class="keywordflow">return</span>; <span class="comment">// Already closed/logged/etc. (too many retransmissions probably).</span></div>
-<div class="line"><a id="l02387" name="l02387"></a><span class="lineno"> 2387</span>  }</div>
-<div class="line"><a id="l02388" name="l02388"></a><span class="lineno"> 2388</span> </div>
-<div class="line"><a id="l02389" name="l02389"></a><span class="lineno"> 2389</span>  <span class="comment">// As long promised since the top of this method, let congestion control (and B/W estimator) know what happened!</span></div>
-<div class="line"><a id="l02390" name="l02390"></a><span class="lineno"> 2390</span> </div>
-<div class="line"><a id="l02391" name="l02391"></a><span class="lineno"> 2391</span>  <span class="comment">/* Bandwidth estimation: It can be useful to estimate the available outgoing bandwidth (available</span></div>
-<div class="line"><a id="l02392" name="l02392"></a><span class="lineno"> 2392</span><span class="comment">   * meaning the total bandwidth of the empty pipe minus any other traffic other than this</span></div>
-<div class="line"><a id="l02393" name="l02393"></a><span class="lineno"> 2393</span><span class="comment">   * connection [NetFlow or otherwise] currently occupying this pipe).  Mostly it&#39;s useful for certain</span></div>
-<div class="line"><a id="l02394" name="l02394"></a><span class="lineno"> 2394</span><span class="comment">   * congestion control strategies like Congestion_control_classic_with_bandwidth_est, but it may be</span></div>
-<div class="line"><a id="l02395" name="l02395"></a><span class="lineno"> 2395</span><span class="comment">   * good information to have if only for the user&#39;s general information.  Therefore we keep an</span></div>
-<div class="line"><a id="l02396" name="l02396"></a><span class="lineno"> 2396</span><span class="comment">   * independent m_snd_bandwidth_estimator regardless of the congestion control strategy in use.</span></div>
-<div class="line"><a id="l02397" name="l02397"></a><span class="lineno"> 2397</span><span class="comment">   * Like Congestion_control_strategy, it updates its state based on events.  It currently cares</span></div>
-<div class="line"><a id="l02398" name="l02398"></a><span class="lineno"> 2398</span><span class="comment">   * about at least one event: on_acks(N), where N is the number of bytes acknowledged.  This is</span></div>
-<div class="line"><a id="l02399" name="l02399"></a><span class="lineno"> 2399</span><span class="comment">   * very similar to the on_acks(N, M) event for congestion control (see above).  None of the other</span></div>
-<div class="line"><a id="l02400" name="l02400"></a><span class="lineno"> 2400</span><span class="comment">   * aspects of the above discussion (such as loss events) apply to m_snd_bandwidth_estimator. */</span></div>
-<div class="line"><a id="l02401" name="l02401"></a><span class="lineno"> 2401</span> </div>
-<div class="line"><a id="l02402" name="l02402"></a><span class="lineno"> 2402</span>  <span class="comment">// Note that the order is as required by Congestion_control_strategy() API: loss, individual acks, consolidated acks.</span></div>
-<div class="line"><a id="l02403" name="l02403"></a><span class="lineno"> 2403</span> </div>
-<div class="line"><a id="l02404" name="l02404"></a><span class="lineno"> 2404</span>  <span class="comment">// Report loss event info to congestion control.</span></div>
-<div class="line"><a id="l02405" name="l02405"></a><span class="lineno"> 2405</span>  <span class="keywordflow">if</span> (dropped_pkts != 0)</div>
-<div class="line"><a id="l02406" name="l02406"></a><span class="lineno"> 2406</span>  {</div>
-<div class="line"><a id="l02407" name="l02407"></a><span class="lineno"> 2407</span>    <span class="comment">// @todo Might be too verbose to keep it as INFO!</span></div>
-<div class="line"><a id="l02408" name="l02408"></a><span class="lineno"> 2408</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
-<div class="line"><a id="l02409" name="l02409"></a><span class="lineno"> 2409</span>                  <span class="stringliteral">&quot;Considering Dropped: [&quot;</span> &lt;&lt; dropped_bytes &lt;&lt; <span class="stringliteral">&quot;] bytes = [&quot;</span> &lt;&lt; dropped_pkts &lt;&lt; <span class="stringliteral">&quot;] packets.&quot;</span>);</div>
-<div class="line"><a id="l02410" name="l02410"></a><span class="lineno"> 2410</span> </div>
-<div class="line"><a id="l02411" name="l02411"></a><span class="lineno"> 2411</span>    <span class="keywordflow">if</span> (cong_ctl_dropped_pkts != 0) <span class="comment">// Again, cong_ctl_dropped_pkts != dropped_pkts, potentially.</span></div>
-<div class="line"><a id="l02412" name="l02412"></a><span class="lineno"> 2412</span>    {</div>
-<div class="line"><a id="l02413" name="l02413"></a><span class="lineno"> 2413</span>      <span class="comment">// New loss event!</span></div>
-<div class="line"><a id="l02414" name="l02414"></a><span class="lineno"> 2414</span>      assert(cong_ctl_dropped_bytes != 0); <span class="comment">// Empty blocks not allowed (should have been eliminated by now).</span></div>
-<div class="line"><a id="l02415" name="l02415"></a><span class="lineno"> 2415</span> </div>
-<div class="line"><a id="l02416" name="l02416"></a><span class="lineno"> 2416</span>      <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;cong_ctl [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] update: loss event: &quot;</span></div>
-<div class="line"><a id="l02417" name="l02417"></a><span class="lineno"> 2417</span>                    <span class="stringliteral">&quot;Dropped [&quot;</span> &lt;&lt; cong_ctl_dropped_bytes &lt;&lt; <span class="stringliteral">&quot;] bytes &quot;</span></div>
-<div class="line"><a id="l02418" name="l02418"></a><span class="lineno"> 2418</span>                    <span class="stringliteral">&quot;= [&quot;</span> &lt;&lt; cong_ctl_dropped_pkts &lt;&lt; <span class="stringliteral">&quot;] packets.&quot;</span>);</div>
-<div class="line"><a id="l02419" name="l02419"></a><span class="lineno"> 2419</span> </div>
-<div class="line"><a id="l02420" name="l02420"></a><span class="lineno"> 2420</span>      sock-&gt;m_snd_cong_ctl-&gt;on_loss_event(cong_ctl_dropped_bytes, cong_ctl_dropped_pkts);</div>
-<div class="line"><a id="l02421" name="l02421"></a><span class="lineno"> 2421</span>      sock-&gt;m_snd_last_loss_event_when = Fine_clock::now();</div>
-<div class="line"><a id="l02422" name="l02422"></a><span class="lineno"> 2422</span> </div>
-<div class="line"><a id="l02423" name="l02423"></a><span class="lineno"> 2423</span>      <span class="comment">// As a silver lining, we probably got some nice new acknowledgments following that drop.</span></div>
-<div class="line"><a id="l02424" name="l02424"></a><span class="lineno"> 2424</span>    }</div>
-<div class="line"><a id="l02425" name="l02425"></a><span class="lineno"> 2425</span>  }</div>
-<div class="line"><a id="l02426" name="l02426"></a><span class="lineno"> 2426</span>  <span class="keywordflow">else</span></div>
-<div class="line"><a id="l02427" name="l02427"></a><span class="lineno"> 2427</span>  {</div>
-<div class="line"><a id="l02428" name="l02428"></a><span class="lineno"> 2428</span>    assert(dropped_pkts == 0);</div>
-<div class="line"><a id="l02429" name="l02429"></a><span class="lineno"> 2429</span>    assert(cong_ctl_dropped_pkts == 0);</div>
-<div class="line"><a id="l02430" name="l02430"></a><span class="lineno"> 2430</span>  }</div>
-<div class="line"><a id="l02431" name="l02431"></a><span class="lineno"> 2431</span> </div>
-<div class="line"><a id="l02432" name="l02432"></a><span class="lineno"> 2432</span>  <span class="keywordflow">if</span> (clean_acked_packets != 0)</div>
+<div class="line"><a id="l02366" name="l02366"></a><span class="lineno"> 2366</span>    <span class="comment">/* Note that we track these by &quot;order number&quot;; each sent packet (no matter if retransmitted or</span></div>
+<div class="line"><a id="l02367" name="l02367"></a><span class="lineno"> 2367</span><span class="comment">     * not) gets a unique order number, higher than all previous.  Since no two packets will have</span></div>
+<div class="line"><a id="l02368" name="l02368"></a><span class="lineno"> 2368</span><span class="comment">     * the same order number, we keep a set of order numbers. */</span></div>
+<div class="line"><a id="l02369" name="l02369"></a><span class="lineno"> 2369</span>    flying_now_acked_pkts.insert(sent_when-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">m_order_num</a>);</div>
+<div class="line"><a id="l02370" name="l02370"></a><span class="lineno"> 2370</span>  } <span class="comment">// for (all acked_packets)</span></div>
+<div class="line"><a id="l02371" name="l02371"></a><span class="lineno"> 2371</span> </div>
+<div class="line"><a id="l02372" name="l02372"></a><span class="lineno"> 2372</span>  <span class="comment">/* snd_flying_pkts* is updated w/r/t removing the In-flight-now-acked packets.  Now, realize that</span></div>
+<div class="line"><a id="l02373" name="l02373"></a><span class="lineno"> 2373</span><span class="comment">   * for a given packet P still In-flight, if packets sent BEFORE it have just become acked, intuitively</span></div>
+<div class="line"><a id="l02374" name="l02374"></a><span class="lineno"> 2374</span><span class="comment">   * it raises the probability P has been lost and should be considered Dropped.  In fact, as explained in</span></div>
+<div class="line"><a id="l02375" name="l02375"></a><span class="lineno"> 2375</span><span class="comment">   * helper categorize_pkts_as_dropped_on_acks(), if one finds the latest-sent such packet P, then all</span></div>
+<div class="line"><a id="l02376" name="l02376"></a><span class="lineno"> 2376</span><span class="comment">   * packets sent before it should all be dropped as well.  So, let&#39;s find this latest-sent P: */</span></div>
+<div class="line"><a id="l02377" name="l02377"></a><span class="lineno"> 2377</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a> last_dropped_pkt_it</div>
+<div class="line"><a id="l02378" name="l02378"></a><span class="lineno"> 2378</span>    = categorize_pkts_as_dropped_on_acks(sock, flying_now_acked_pkts);</div>
+<div class="line"><a id="l02379" name="l02379"></a><span class="lineno"> 2379</span> </div>
+<div class="line"><a id="l02380" name="l02380"></a><span class="lineno"> 2380</span>  <span class="comment">/* OK, so P and all In-flight packets sent before it must be dropped.  This helper takes all the actions</span></div>
+<div class="line"><a id="l02381" name="l02381"></a><span class="lineno"> 2381</span><span class="comment">   * necessary (or at least records data we use to take such actions below) w/r/t all those packets.</span></div>
+<div class="line"><a id="l02382" name="l02382"></a><span class="lineno"> 2382</span><span class="comment">   * Namely: erases them from snd_flying_pkts*; accumulates packet and bytes counts to do with these</span></div>
+<div class="line"><a id="l02383" name="l02383"></a><span class="lineno"> 2383</span><span class="comment">   * dropped packets; saves the packet IDs from Drop timer purposes into pkts_marked_to_drop. */</span></div>
+<div class="line"><a id="l02384" name="l02384"></a><span class="lineno"> 2384</span>  <span class="keywordtype">size_t</span> dropped_pkts;</div>
+<div class="line"><a id="l02385" name="l02385"></a><span class="lineno"> 2385</span>  <span class="keywordtype">size_t</span> dropped_bytes;</div>
+<div class="line"><a id="l02386" name="l02386"></a><span class="lineno"> 2386</span>  <span class="keywordtype">size_t</span> cong_ctl_dropped_bytes;</div>
+<div class="line"><a id="l02387" name="l02387"></a><span class="lineno"> 2387</span>  <span class="keywordtype">size_t</span> cong_ctl_dropped_pkts;</div>
+<div class="line"><a id="l02388" name="l02388"></a><span class="lineno"> 2388</span>  <span class="keywordflow">if</span> (!drop_pkts_on_acks(sock, last_dropped_pkt_it,</div>
+<div class="line"><a id="l02389" name="l02389"></a><span class="lineno"> 2389</span>                         &amp;cong_ctl_dropped_pkts, &amp;cong_ctl_dropped_bytes,</div>
+<div class="line"><a id="l02390" name="l02390"></a><span class="lineno"> 2390</span>                         &amp;dropped_pkts, &amp;dropped_bytes, &amp;pkts_marked_to_drop))</div>
+<div class="line"><a id="l02391" name="l02391"></a><span class="lineno"> 2391</span>  {</div>
+<div class="line"><a id="l02392" name="l02392"></a><span class="lineno"> 2392</span>    <span class="keywordflow">return</span>; <span class="comment">// Already closed/logged/etc. (too many retransmissions probably).</span></div>
+<div class="line"><a id="l02393" name="l02393"></a><span class="lineno"> 2393</span>  }</div>
+<div class="line"><a id="l02394" name="l02394"></a><span class="lineno"> 2394</span> </div>
+<div class="line"><a id="l02395" name="l02395"></a><span class="lineno"> 2395</span>  <span class="comment">// As long promised since the top of this method, let congestion control (and B/W estimator) know what happened!</span></div>
+<div class="line"><a id="l02396" name="l02396"></a><span class="lineno"> 2396</span> </div>
+<div class="line"><a id="l02397" name="l02397"></a><span class="lineno"> 2397</span>  <span class="comment">/* Bandwidth estimation: It can be useful to estimate the available outgoing bandwidth (available</span></div>
+<div class="line"><a id="l02398" name="l02398"></a><span class="lineno"> 2398</span><span class="comment">   * meaning the total bandwidth of the empty pipe minus any other traffic other than this</span></div>
+<div class="line"><a id="l02399" name="l02399"></a><span class="lineno"> 2399</span><span class="comment">   * connection [NetFlow or otherwise] currently occupying this pipe).  Mostly it&#39;s useful for certain</span></div>
+<div class="line"><a id="l02400" name="l02400"></a><span class="lineno"> 2400</span><span class="comment">   * congestion control strategies like Congestion_control_classic_with_bandwidth_est, but it may be</span></div>
+<div class="line"><a id="l02401" name="l02401"></a><span class="lineno"> 2401</span><span class="comment">   * good information to have if only for the user&#39;s general information.  Therefore we keep an</span></div>
+<div class="line"><a id="l02402" name="l02402"></a><span class="lineno"> 2402</span><span class="comment">   * independent m_snd_bandwidth_estimator regardless of the congestion control strategy in use.</span></div>
+<div class="line"><a id="l02403" name="l02403"></a><span class="lineno"> 2403</span><span class="comment">   * Like Congestion_control_strategy, it updates its state based on events.  It currently cares</span></div>
+<div class="line"><a id="l02404" name="l02404"></a><span class="lineno"> 2404</span><span class="comment">   * about at least one event: on_acks(N), where N is the number of bytes acknowledged.  This is</span></div>
+<div class="line"><a id="l02405" name="l02405"></a><span class="lineno"> 2405</span><span class="comment">   * very similar to the on_acks(N, M) event for congestion control (see above).  None of the other</span></div>
+<div class="line"><a id="l02406" name="l02406"></a><span class="lineno"> 2406</span><span class="comment">   * aspects of the above discussion (such as loss events) apply to m_snd_bandwidth_estimator. */</span></div>
+<div class="line"><a id="l02407" name="l02407"></a><span class="lineno"> 2407</span> </div>
+<div class="line"><a id="l02408" name="l02408"></a><span class="lineno"> 2408</span>  <span class="comment">// Note that the order is as required by Congestion_control_strategy() API: loss, individual acks, consolidated acks.</span></div>
+<div class="line"><a id="l02409" name="l02409"></a><span class="lineno"> 2409</span> </div>
+<div class="line"><a id="l02410" name="l02410"></a><span class="lineno"> 2410</span>  <span class="comment">// Report loss event info to congestion control.</span></div>
+<div class="line"><a id="l02411" name="l02411"></a><span class="lineno"> 2411</span>  <span class="keywordflow">if</span> (dropped_pkts != 0)</div>
+<div class="line"><a id="l02412" name="l02412"></a><span class="lineno"> 2412</span>  {</div>
+<div class="line"><a id="l02413" name="l02413"></a><span class="lineno"> 2413</span>    <span class="comment">// @todo Might be too verbose to keep it as INFO!</span></div>
+<div class="line"><a id="l02414" name="l02414"></a><span class="lineno"> 2414</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
+<div class="line"><a id="l02415" name="l02415"></a><span class="lineno"> 2415</span>                  <span class="stringliteral">&quot;Considering Dropped: [&quot;</span> &lt;&lt; dropped_bytes &lt;&lt; <span class="stringliteral">&quot;] bytes = [&quot;</span> &lt;&lt; dropped_pkts &lt;&lt; <span class="stringliteral">&quot;] packets.&quot;</span>);</div>
+<div class="line"><a id="l02416" name="l02416"></a><span class="lineno"> 2416</span> </div>
+<div class="line"><a id="l02417" name="l02417"></a><span class="lineno"> 2417</span>    <span class="keywordflow">if</span> (cong_ctl_dropped_pkts != 0) <span class="comment">// Again, cong_ctl_dropped_pkts != dropped_pkts, potentially.</span></div>
+<div class="line"><a id="l02418" name="l02418"></a><span class="lineno"> 2418</span>    {</div>
+<div class="line"><a id="l02419" name="l02419"></a><span class="lineno"> 2419</span>      <span class="comment">// New loss event!</span></div>
+<div class="line"><a id="l02420" name="l02420"></a><span class="lineno"> 2420</span>      assert(cong_ctl_dropped_bytes != 0); <span class="comment">// Empty blocks not allowed (should have been eliminated by now).</span></div>
+<div class="line"><a id="l02421" name="l02421"></a><span class="lineno"> 2421</span> </div>
+<div class="line"><a id="l02422" name="l02422"></a><span class="lineno"> 2422</span>      <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;cong_ctl [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] update: loss event: &quot;</span></div>
+<div class="line"><a id="l02423" name="l02423"></a><span class="lineno"> 2423</span>                    <span class="stringliteral">&quot;Dropped [&quot;</span> &lt;&lt; cong_ctl_dropped_bytes &lt;&lt; <span class="stringliteral">&quot;] bytes &quot;</span></div>
+<div class="line"><a id="l02424" name="l02424"></a><span class="lineno"> 2424</span>                    <span class="stringliteral">&quot;= [&quot;</span> &lt;&lt; cong_ctl_dropped_pkts &lt;&lt; <span class="stringliteral">&quot;] packets.&quot;</span>);</div>
+<div class="line"><a id="l02425" name="l02425"></a><span class="lineno"> 2425</span> </div>
+<div class="line"><a id="l02426" name="l02426"></a><span class="lineno"> 2426</span>      sock-&gt;m_snd_cong_ctl-&gt;on_loss_event(cong_ctl_dropped_bytes, cong_ctl_dropped_pkts);</div>
+<div class="line"><a id="l02427" name="l02427"></a><span class="lineno"> 2427</span>      sock-&gt;m_snd_last_loss_event_when = Fine_clock::now();</div>
+<div class="line"><a id="l02428" name="l02428"></a><span class="lineno"> 2428</span> </div>
+<div class="line"><a id="l02429" name="l02429"></a><span class="lineno"> 2429</span>      <span class="comment">// As a silver lining, we probably got some nice new acknowledgments following that drop.</span></div>
+<div class="line"><a id="l02430" name="l02430"></a><span class="lineno"> 2430</span>    }</div>
+<div class="line"><a id="l02431" name="l02431"></a><span class="lineno"> 2431</span>  }</div>
+<div class="line"><a id="l02432" name="l02432"></a><span class="lineno"> 2432</span>  <span class="keywordflow">else</span></div>
 <div class="line"><a id="l02433" name="l02433"></a><span class="lineno"> 2433</span>  {</div>
-<div class="line"><a id="l02434" name="l02434"></a><span class="lineno"> 2434</span>    assert(clean_acked_bytes != 0); <span class="comment">// Empty blocks not allowed (should have been eliminated by now).</span></div>
-<div class="line"><a id="l02435" name="l02435"></a><span class="lineno"> 2435</span>    assert(!clean_acked_packet_events.empty());</div>
-<div class="line"><a id="l02436" name="l02436"></a><span class="lineno"> 2436</span> </div>
-<div class="line"><a id="l02437" name="l02437"></a><span class="lineno"> 2437</span>    <span class="comment">// Report individual (clean) acks to congestion control.</span></div>
-<div class="line"><a id="l02438" name="l02438"></a><span class="lineno"> 2438</span>    <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>&amp; [rtt, bytes, cwnd_bytes] : clean_acked_packet_events)</div>
-<div class="line"><a id="l02439" name="l02439"></a><span class="lineno"> 2439</span>    {</div>
-<div class="line"><a id="l02440" name="l02440"></a><span class="lineno"> 2440</span>      <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;cong_ctl [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] update: clean individual acknowledgment: &quot;</span></div>
-<div class="line"><a id="l02441" name="l02441"></a><span class="lineno"> 2441</span>                     <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(bytes) &lt;&lt; <span class="stringliteral">&quot;] with RTT [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(rtt) &lt;&lt;</div>
-<div class="line"><a id="l02442" name="l02442"></a><span class="lineno"> 2442</span>                     <span class="stringliteral">&quot;] and sent_cwnd_bytes [&quot;</span> &lt;&lt; cwnd_bytes &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l02443" name="l02443"></a><span class="lineno"> 2443</span> </div>
-<div class="line"><a id="l02444" name="l02444"></a><span class="lineno"> 2444</span>      sock-&gt;m_snd_cong_ctl-&gt;on_individual_ack(rtt, bytes, cwnd_bytes);</div>
-<div class="line"><a id="l02445" name="l02445"></a><span class="lineno"> 2445</span>    }</div>
-<div class="line"><a id="l02446" name="l02446"></a><span class="lineno"> 2446</span> </div>
-<div class="line"><a id="l02447" name="l02447"></a><span class="lineno"> 2447</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;cong_ctl/bw_est [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] update: clean acknowledgments: &quot;</span></div>
-<div class="line"><a id="l02448" name="l02448"></a><span class="lineno"> 2448</span>                   <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(clean_acked_bytes) &lt;&lt; <span class="stringliteral">&quot;] = &quot;</span></div>
-<div class="line"><a id="l02449" name="l02449"></a><span class="lineno"> 2449</span>                   <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; clean_acked_packets &lt;&lt; <span class="stringliteral">&quot;] packets.&quot;</span>);</div>
-<div class="line"><a id="l02450" name="l02450"></a><span class="lineno"> 2450</span> </div>
-<div class="line"><a id="l02451" name="l02451"></a><span class="lineno"> 2451</span>    <span class="comment">// Report the totality of (clean) acks to congestion control and bandwidth estimator.</span></div>
-<div class="line"><a id="l02452" name="l02452"></a><span class="lineno"> 2452</span>    sock-&gt;m_snd_bandwidth_estimator-&gt;on_acks(clean_acked_bytes);</div>
-<div class="line"><a id="l02453" name="l02453"></a><span class="lineno"> 2453</span>    sock-&gt;m_snd_cong_ctl-&gt;on_acks(clean_acked_bytes, clean_acked_packets);</div>
-<div class="line"><a id="l02454" name="l02454"></a><span class="lineno"> 2454</span>  }</div>
-<div class="line"><a id="l02455" name="l02455"></a><span class="lineno"> 2455</span> </div>
-<div class="line"><a id="l02456" name="l02456"></a><span class="lineno"> 2456</span>  <span class="comment">/* For debugging it can be useful to log socket state right after loss and handling everything.</span></div>
-<div class="line"><a id="l02457" name="l02457"></a><span class="lineno"> 2457</span><span class="comment">   * Do so but only if the last time we so logged was some time ago; this is a CPU-intensive</span></div>
-<div class="line"><a id="l02458" name="l02458"></a><span class="lineno"> 2458</span><span class="comment">   * operation.</span></div>
-<div class="line"><a id="l02459" name="l02459"></a><span class="lineno"> 2459</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02460" name="l02460"></a><span class="lineno"> 2460</span><span class="comment">   * Also, register dropped data in snd_stats. */</span></div>
-<div class="line"><a id="l02461" name="l02461"></a><span class="lineno"> 2461</span>  <span class="keywordflow">if</span> (dropped_pkts != 0)</div>
-<div class="line"><a id="l02462" name="l02462"></a><span class="lineno"> 2462</span>  {</div>
-<div class="line"><a id="l02463" name="l02463"></a><span class="lineno"> 2463</span>    <span class="comment">// Register that we have convered N bytes over M packets from In-flight to Acknowledged.</span></div>
-<div class="line"><a id="l02464" name="l02464"></a><span class="lineno"> 2464</span>    snd_stats.dropped_data(dropped_bytes, dropped_pkts);</div>
-<div class="line"><a id="l02465" name="l02465"></a><span class="lineno"> 2465</span> </div>
-<div class="line"><a id="l02466" name="l02466"></a><span class="lineno"> 2466</span>    <span class="keyword">const</span> seconds MIN_TIME_BETWEEN_LOGS(1);</div>
-<div class="line"><a id="l02467" name="l02467"></a><span class="lineno"> 2467</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> since_last_loss_sock_log = Fine_clock::now() - m_last_loss_sock_log_when;</div>
-<div class="line"><a id="l02468" name="l02468"></a><span class="lineno"> 2468</span> </div>
-<div class="line"><a id="l02469" name="l02469"></a><span class="lineno"> 2469</span>    <span class="keywordflow">if</span> (since_last_loss_sock_log &gt; MIN_TIME_BETWEEN_LOGS)</div>
-<div class="line"><a id="l02470" name="l02470"></a><span class="lineno"> 2470</span>    {</div>
-<div class="line"><a id="l02471" name="l02471"></a><span class="lineno"> 2471</span>      <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Will log socket state on loss, because last such loss-driven logging was &quot;</span></div>
-<div class="line"><a id="l02472" name="l02472"></a><span class="lineno"> 2472</span>                    <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(since_last_loss_sock_log) &lt;&lt; <span class="stringliteral">&quot; &gt;&quot;</span></div>
-<div class="line"><a id="l02473" name="l02473"></a><span class="lineno"> 2473</span>                    <span class="stringliteral">&quot; &quot;</span> &lt;&lt; MIN_TIME_BETWEEN_LOGS &lt;&lt; <span class="stringliteral">&quot;] ago.&quot;</span>);</div>
-<div class="line"><a id="l02474" name="l02474"></a><span class="lineno"> 2474</span>      sock_log_detail(sock);</div>
-<div class="line"><a id="l02475" name="l02475"></a><span class="lineno"> 2475</span>      m_last_loss_sock_log_when = Fine_clock::now();</div>
-<div class="line"><a id="l02476" name="l02476"></a><span class="lineno"> 2476</span>    }</div>
-<div class="line"><a id="l02477" name="l02477"></a><span class="lineno"> 2477</span>    <span class="keywordflow">else</span></div>
-<div class="line"><a id="l02478" name="l02478"></a><span class="lineno"> 2478</span>    {</div>
-<div class="line"><a id="l02479" name="l02479"></a><span class="lineno"> 2479</span>      <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Will NOT log socket state on loss, because last such loss-driven logging was &quot;</span></div>
-<div class="line"><a id="l02480" name="l02480"></a><span class="lineno"> 2480</span>                    <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(since_last_loss_sock_log) &lt;&lt; <span class="stringliteral">&quot; &lt;=&quot;</span></div>
-<div class="line"><a id="l02481" name="l02481"></a><span class="lineno"> 2481</span>                    <span class="stringliteral">&quot; &quot;</span> &lt;&lt; MIN_TIME_BETWEEN_LOGS &lt;&lt; <span class="stringliteral">&quot;] ago.&quot;</span>);</div>
+<div class="line"><a id="l02434" name="l02434"></a><span class="lineno"> 2434</span>    assert(dropped_pkts == 0);</div>
+<div class="line"><a id="l02435" name="l02435"></a><span class="lineno"> 2435</span>    assert(cong_ctl_dropped_pkts == 0);</div>
+<div class="line"><a id="l02436" name="l02436"></a><span class="lineno"> 2436</span>  }</div>
+<div class="line"><a id="l02437" name="l02437"></a><span class="lineno"> 2437</span> </div>
+<div class="line"><a id="l02438" name="l02438"></a><span class="lineno"> 2438</span>  <span class="keywordflow">if</span> (clean_acked_packets != 0)</div>
+<div class="line"><a id="l02439" name="l02439"></a><span class="lineno"> 2439</span>  {</div>
+<div class="line"><a id="l02440" name="l02440"></a><span class="lineno"> 2440</span>    assert(clean_acked_bytes != 0); <span class="comment">// Empty blocks not allowed (should have been eliminated by now).</span></div>
+<div class="line"><a id="l02441" name="l02441"></a><span class="lineno"> 2441</span>    assert(!clean_acked_packet_events.empty());</div>
+<div class="line"><a id="l02442" name="l02442"></a><span class="lineno"> 2442</span> </div>
+<div class="line"><a id="l02443" name="l02443"></a><span class="lineno"> 2443</span>    <span class="comment">// Report individual (clean) acks to congestion control.</span></div>
+<div class="line"><a id="l02444" name="l02444"></a><span class="lineno"> 2444</span>    <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>&amp; [rtt, bytes, cwnd_bytes] : clean_acked_packet_events)</div>
+<div class="line"><a id="l02445" name="l02445"></a><span class="lineno"> 2445</span>    {</div>
+<div class="line"><a id="l02446" name="l02446"></a><span class="lineno"> 2446</span>      <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;cong_ctl [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] update: clean individual acknowledgment: &quot;</span></div>
+<div class="line"><a id="l02447" name="l02447"></a><span class="lineno"> 2447</span>                     <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(bytes) &lt;&lt; <span class="stringliteral">&quot;] with RTT [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(rtt) &lt;&lt;</div>
+<div class="line"><a id="l02448" name="l02448"></a><span class="lineno"> 2448</span>                     <span class="stringliteral">&quot;] and sent_cwnd_bytes [&quot;</span> &lt;&lt; cwnd_bytes &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l02449" name="l02449"></a><span class="lineno"> 2449</span> </div>
+<div class="line"><a id="l02450" name="l02450"></a><span class="lineno"> 2450</span>      sock-&gt;m_snd_cong_ctl-&gt;on_individual_ack(rtt, bytes, cwnd_bytes);</div>
+<div class="line"><a id="l02451" name="l02451"></a><span class="lineno"> 2451</span>    }</div>
+<div class="line"><a id="l02452" name="l02452"></a><span class="lineno"> 2452</span> </div>
+<div class="line"><a id="l02453" name="l02453"></a><span class="lineno"> 2453</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;cong_ctl/bw_est [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] update: clean acknowledgments: &quot;</span></div>
+<div class="line"><a id="l02454" name="l02454"></a><span class="lineno"> 2454</span>                   <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(clean_acked_bytes) &lt;&lt; <span class="stringliteral">&quot;] = &quot;</span></div>
+<div class="line"><a id="l02455" name="l02455"></a><span class="lineno"> 2455</span>                   <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; clean_acked_packets &lt;&lt; <span class="stringliteral">&quot;] packets.&quot;</span>);</div>
+<div class="line"><a id="l02456" name="l02456"></a><span class="lineno"> 2456</span> </div>
+<div class="line"><a id="l02457" name="l02457"></a><span class="lineno"> 2457</span>    <span class="comment">// Report the totality of (clean) acks to congestion control and bandwidth estimator.</span></div>
+<div class="line"><a id="l02458" name="l02458"></a><span class="lineno"> 2458</span>    sock-&gt;m_snd_bandwidth_estimator-&gt;on_acks(clean_acked_bytes);</div>
+<div class="line"><a id="l02459" name="l02459"></a><span class="lineno"> 2459</span>    sock-&gt;m_snd_cong_ctl-&gt;on_acks(clean_acked_bytes, clean_acked_packets);</div>
+<div class="line"><a id="l02460" name="l02460"></a><span class="lineno"> 2460</span>  }</div>
+<div class="line"><a id="l02461" name="l02461"></a><span class="lineno"> 2461</span> </div>
+<div class="line"><a id="l02462" name="l02462"></a><span class="lineno"> 2462</span>  <span class="comment">/* For debugging it can be useful to log socket state right after loss and handling everything.</span></div>
+<div class="line"><a id="l02463" name="l02463"></a><span class="lineno"> 2463</span><span class="comment">   * Do so but only if the last time we so logged was some time ago; this is a CPU-intensive</span></div>
+<div class="line"><a id="l02464" name="l02464"></a><span class="lineno"> 2464</span><span class="comment">   * operation.</span></div>
+<div class="line"><a id="l02465" name="l02465"></a><span class="lineno"> 2465</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02466" name="l02466"></a><span class="lineno"> 2466</span><span class="comment">   * Also, register dropped data in snd_stats. */</span></div>
+<div class="line"><a id="l02467" name="l02467"></a><span class="lineno"> 2467</span>  <span class="keywordflow">if</span> (dropped_pkts != 0)</div>
+<div class="line"><a id="l02468" name="l02468"></a><span class="lineno"> 2468</span>  {</div>
+<div class="line"><a id="l02469" name="l02469"></a><span class="lineno"> 2469</span>    <span class="comment">// Register that we have convered N bytes over M packets from In-flight to Acknowledged.</span></div>
+<div class="line"><a id="l02470" name="l02470"></a><span class="lineno"> 2470</span>    snd_stats.dropped_data(dropped_bytes, dropped_pkts);</div>
+<div class="line"><a id="l02471" name="l02471"></a><span class="lineno"> 2471</span> </div>
+<div class="line"><a id="l02472" name="l02472"></a><span class="lineno"> 2472</span>    <span class="keyword">const</span> seconds MIN_TIME_BETWEEN_LOGS(1);</div>
+<div class="line"><a id="l02473" name="l02473"></a><span class="lineno"> 2473</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> since_last_loss_sock_log = Fine_clock::now() - m_last_loss_sock_log_when;</div>
+<div class="line"><a id="l02474" name="l02474"></a><span class="lineno"> 2474</span> </div>
+<div class="line"><a id="l02475" name="l02475"></a><span class="lineno"> 2475</span>    <span class="keywordflow">if</span> (since_last_loss_sock_log &gt; MIN_TIME_BETWEEN_LOGS)</div>
+<div class="line"><a id="l02476" name="l02476"></a><span class="lineno"> 2476</span>    {</div>
+<div class="line"><a id="l02477" name="l02477"></a><span class="lineno"> 2477</span>      <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Will log socket state on loss, because last such loss-driven logging was &quot;</span></div>
+<div class="line"><a id="l02478" name="l02478"></a><span class="lineno"> 2478</span>                    <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(since_last_loss_sock_log) &lt;&lt; <span class="stringliteral">&quot; &gt;&quot;</span></div>
+<div class="line"><a id="l02479" name="l02479"></a><span class="lineno"> 2479</span>                    <span class="stringliteral">&quot; &quot;</span> &lt;&lt; MIN_TIME_BETWEEN_LOGS &lt;&lt; <span class="stringliteral">&quot;] ago.&quot;</span>);</div>
+<div class="line"><a id="l02480" name="l02480"></a><span class="lineno"> 2480</span>      sock_log_detail(sock);</div>
+<div class="line"><a id="l02481" name="l02481"></a><span class="lineno"> 2481</span>      m_last_loss_sock_log_when = Fine_clock::now();</div>
 <div class="line"><a id="l02482" name="l02482"></a><span class="lineno"> 2482</span>    }</div>
-<div class="line"><a id="l02483" name="l02483"></a><span class="lineno"> 2483</span>  }</div>
-<div class="line"><a id="l02484" name="l02484"></a><span class="lineno"> 2484</span> </div>
-<div class="line"><a id="l02485" name="l02485"></a><span class="lineno"> 2485</span>  <span class="comment">// Log the send window state after the above changes (if at least TRACE enabled).</span></div>
-<div class="line"><a id="l02486" name="l02486"></a><span class="lineno"> 2486</span>  log_snd_window(sock);</div>
-<div class="line"><a id="l02487" name="l02487"></a><span class="lineno"> 2487</span> </div>
-<div class="line"><a id="l02488" name="l02488"></a><span class="lineno"> 2488</span>  <span class="comment">/* Handle possible effect of above activities on the Drop Timer.  (It may get disabled or restarted anew.)</span></div>
-<div class="line"><a id="l02489" name="l02489"></a><span class="lineno"> 2489</span><span class="comment">   * Why not just do this right when we erase the associated packets from snd_flying_pkts*?  Answer: We don&#39;t want to</span></div>
-<div class="line"><a id="l02490" name="l02490"></a><span class="lineno"> 2490</span><span class="comment">   * trigger disruptive behavior like possibly retransmitting everything in the middle of all that accounting</span></div>
-<div class="line"><a id="l02491" name="l02491"></a><span class="lineno"> 2491</span><span class="comment">   * which is not yet complete.  Now it&#39;s complete, so it&#39;s the right time to handle this.</span></div>
-<div class="line"><a id="l02492" name="l02492"></a><span class="lineno"> 2492</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02493" name="l02493"></a><span class="lineno"> 2493</span><span class="comment">   * Recall that snd_flying_pkts* have been updated and no longer contain the associated packets&#39; info. */</span></div>
-<div class="line"><a id="l02494" name="l02494"></a><span class="lineno"> 2494</span> </div>
-<div class="line"><a id="l02495" name="l02495"></a><span class="lineno"> 2495</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Drop_timer::Ptr</a> drop_timer = sock-&gt;m_snd_drop_timer;</div>
-<div class="line"><a id="l02496" name="l02496"></a><span class="lineno"> 2496</span>  drop_timer-&gt;start_contemporaneous_events();</div>
-<div class="line"><a id="l02497" name="l02497"></a><span class="lineno"> 2497</span> </div>
-<div class="line"><a id="l02498" name="l02498"></a><span class="lineno"> 2498</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> pkt_order_num : flying_now_acked_pkts)</div>
-<div class="line"><a id="l02499" name="l02499"></a><span class="lineno"> 2499</span>  {</div>
-<div class="line"><a id="l02500" name="l02500"></a><span class="lineno"> 2500</span>    drop_timer-&gt;on_ack(pkt_order_num);</div>
-<div class="line"><a id="l02501" name="l02501"></a><span class="lineno"> 2501</span>    drop_timer-&gt;on_packet_no_longer_in_flight(pkt_order_num);</div>
-<div class="line"><a id="l02502" name="l02502"></a><span class="lineno"> 2502</span>  }</div>
-<div class="line"><a id="l02503" name="l02503"></a><span class="lineno"> 2503</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> pkt_order_num : pkts_marked_to_drop)</div>
-<div class="line"><a id="l02504" name="l02504"></a><span class="lineno"> 2504</span>  {</div>
-<div class="line"><a id="l02505" name="l02505"></a><span class="lineno"> 2505</span>    drop_timer-&gt;on_packet_no_longer_in_flight(pkt_order_num);</div>
-<div class="line"><a id="l02506" name="l02506"></a><span class="lineno"> 2506</span>  }</div>
-<div class="line"><a id="l02507" name="l02507"></a><span class="lineno"> 2507</span> </div>
-<div class="line"><a id="l02508" name="l02508"></a><span class="lineno"> 2508</span>  drop_timer-&gt;end_contemporaneous_events();</div>
-<div class="line"><a id="l02509" name="l02509"></a><span class="lineno"> 2509</span> </div>
-<div class="line"><a id="l02510" name="l02510"></a><span class="lineno"> 2510</span>  <span class="comment">/* As avertised, handle the rcv_wnd update: the latest ACK we are handling here contains the</span></div>
-<div class="line"><a id="l02511" name="l02511"></a><span class="lineno"> 2511</span><span class="comment">   * latest info about the Receive buffer space on the other side that is available. */</span></div>
-<div class="line"><a id="l02512" name="l02512"></a><span class="lineno"> 2512</span>  <span class="keywordflow">if</span> (sock-&gt;m_snd_pending_rcv_wnd != sock-&gt;m_snd_remote_rcv_wnd)</div>
-<div class="line"><a id="l02513" name="l02513"></a><span class="lineno"> 2513</span>  {</div>
-<div class="line"><a id="l02514" name="l02514"></a><span class="lineno"> 2514</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Other side advertised &quot;</span></div>
-<div class="line"><a id="l02515" name="l02515"></a><span class="lineno"> 2515</span>                   <span class="stringliteral">&quot;rcv_wnd change [&quot;</span> &lt;&lt; sock-&gt;m_snd_remote_rcv_wnd &lt;&lt; <span class="stringliteral">&quot;] =&gt; [&quot;</span> &lt;&lt; sock-&gt;m_snd_pending_rcv_wnd &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l02516" name="l02516"></a><span class="lineno"> 2516</span>    sock-&gt;m_snd_remote_rcv_wnd = sock-&gt;m_snd_pending_rcv_wnd;</div>
-<div class="line"><a id="l02517" name="l02517"></a><span class="lineno"> 2517</span>    <span class="comment">/* Why have this intermediate m_snd_pending_rcv_wnd thing at all then?  Answer: can_send(),</span></div>
-<div class="line"><a id="l02518" name="l02518"></a><span class="lineno"> 2518</span><span class="comment">     * checked at the start of this method and saved into could_send_before_acks, uses the &quot;before</span></div>
-<div class="line"><a id="l02519" name="l02519"></a><span class="lineno"> 2519</span><span class="comment">     * handling the ACKs&quot; state, which should not yet include the receive window update.  Then</span></div>
-<div class="line"><a id="l02520" name="l02520"></a><span class="lineno"> 2520</span><span class="comment">     * since we update m_snd_remote_rcv_wnd after that is computed, but before can_send() is</span></div>
-<div class="line"><a id="l02521" name="l02521"></a><span class="lineno"> 2521</span><span class="comment">     * re-checked just below, we are able to see if the ACKs have changed can_send() from false to</span></div>
-<div class="line"><a id="l02522" name="l02522"></a><span class="lineno"> 2522</span><span class="comment">     * true. */</span></div>
-<div class="line"><a id="l02523" name="l02523"></a><span class="lineno"> 2523</span> </div>
-<div class="line"><a id="l02524" name="l02524"></a><span class="lineno"> 2524</span>    <span class="comment">/* Register whether after this window update, if we had a packet to send and no data In-flight,</span></div>
-<div class="line"><a id="l02525" name="l02525"></a><span class="lineno"> 2525</span><span class="comment">     * we would be able to send at least one full DATA packet or not (i.e., can_send() would return</span></div>
-<div class="line"><a id="l02526" name="l02526"></a><span class="lineno"> 2526</span><span class="comment">     * true). That is, register whether Receive window is ~0. */</span></div>
-<div class="line"><a id="l02527" name="l02527"></a><span class="lineno"> 2527</span>    sock-&gt;m_snd_stats.updated_rcv_wnd(sock-&gt;m_snd_remote_rcv_wnd &lt; sock-&gt;max_block_size());</div>
-<div class="line"><a id="l02528" name="l02528"></a><span class="lineno"> 2528</span>  }</div>
+<div class="line"><a id="l02483" name="l02483"></a><span class="lineno"> 2483</span>    <span class="keywordflow">else</span></div>
+<div class="line"><a id="l02484" name="l02484"></a><span class="lineno"> 2484</span>    {</div>
+<div class="line"><a id="l02485" name="l02485"></a><span class="lineno"> 2485</span>      <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Will NOT log socket state on loss, because last such loss-driven logging was &quot;</span></div>
+<div class="line"><a id="l02486" name="l02486"></a><span class="lineno"> 2486</span>                    <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(since_last_loss_sock_log) &lt;&lt; <span class="stringliteral">&quot; &lt;=&quot;</span></div>
+<div class="line"><a id="l02487" name="l02487"></a><span class="lineno"> 2487</span>                    <span class="stringliteral">&quot; &quot;</span> &lt;&lt; MIN_TIME_BETWEEN_LOGS &lt;&lt; <span class="stringliteral">&quot;] ago.&quot;</span>);</div>
+<div class="line"><a id="l02488" name="l02488"></a><span class="lineno"> 2488</span>    }</div>
+<div class="line"><a id="l02489" name="l02489"></a><span class="lineno"> 2489</span>  }</div>
+<div class="line"><a id="l02490" name="l02490"></a><span class="lineno"> 2490</span> </div>
+<div class="line"><a id="l02491" name="l02491"></a><span class="lineno"> 2491</span>  <span class="comment">// Log the send window state after the above changes (if at least TRACE enabled).</span></div>
+<div class="line"><a id="l02492" name="l02492"></a><span class="lineno"> 2492</span>  log_snd_window(sock);</div>
+<div class="line"><a id="l02493" name="l02493"></a><span class="lineno"> 2493</span> </div>
+<div class="line"><a id="l02494" name="l02494"></a><span class="lineno"> 2494</span>  <span class="comment">/* Handle possible effect of above activities on the Drop Timer.  (It may get disabled or restarted anew.)</span></div>
+<div class="line"><a id="l02495" name="l02495"></a><span class="lineno"> 2495</span><span class="comment">   * Why not just do this right when we erase the associated packets from snd_flying_pkts*?  Answer: We don&#39;t want to</span></div>
+<div class="line"><a id="l02496" name="l02496"></a><span class="lineno"> 2496</span><span class="comment">   * trigger disruptive behavior like possibly retransmitting everything in the middle of all that accounting</span></div>
+<div class="line"><a id="l02497" name="l02497"></a><span class="lineno"> 2497</span><span class="comment">   * which is not yet complete.  Now it&#39;s complete, so it&#39;s the right time to handle this.</span></div>
+<div class="line"><a id="l02498" name="l02498"></a><span class="lineno"> 2498</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02499" name="l02499"></a><span class="lineno"> 2499</span><span class="comment">   * Recall that snd_flying_pkts* have been updated and no longer contain the associated packets&#39; info. */</span></div>
+<div class="line"><a id="l02500" name="l02500"></a><span class="lineno"> 2500</span> </div>
+<div class="line"><a id="l02501" name="l02501"></a><span class="lineno"> 2501</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Drop_timer::Ptr</a> drop_timer = sock-&gt;m_snd_drop_timer;</div>
+<div class="line"><a id="l02502" name="l02502"></a><span class="lineno"> 2502</span>  drop_timer-&gt;start_contemporaneous_events();</div>
+<div class="line"><a id="l02503" name="l02503"></a><span class="lineno"> 2503</span> </div>
+<div class="line"><a id="l02504" name="l02504"></a><span class="lineno"> 2504</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> pkt_order_num : flying_now_acked_pkts)</div>
+<div class="line"><a id="l02505" name="l02505"></a><span class="lineno"> 2505</span>  {</div>
+<div class="line"><a id="l02506" name="l02506"></a><span class="lineno"> 2506</span>    drop_timer-&gt;on_ack(pkt_order_num);</div>
+<div class="line"><a id="l02507" name="l02507"></a><span class="lineno"> 2507</span>    drop_timer-&gt;on_packet_no_longer_in_flight(pkt_order_num);</div>
+<div class="line"><a id="l02508" name="l02508"></a><span class="lineno"> 2508</span>  }</div>
+<div class="line"><a id="l02509" name="l02509"></a><span class="lineno"> 2509</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> pkt_order_num : pkts_marked_to_drop)</div>
+<div class="line"><a id="l02510" name="l02510"></a><span class="lineno"> 2510</span>  {</div>
+<div class="line"><a id="l02511" name="l02511"></a><span class="lineno"> 2511</span>    drop_timer-&gt;on_packet_no_longer_in_flight(pkt_order_num);</div>
+<div class="line"><a id="l02512" name="l02512"></a><span class="lineno"> 2512</span>  }</div>
+<div class="line"><a id="l02513" name="l02513"></a><span class="lineno"> 2513</span> </div>
+<div class="line"><a id="l02514" name="l02514"></a><span class="lineno"> 2514</span>  drop_timer-&gt;end_contemporaneous_events();</div>
+<div class="line"><a id="l02515" name="l02515"></a><span class="lineno"> 2515</span> </div>
+<div class="line"><a id="l02516" name="l02516"></a><span class="lineno"> 2516</span>  <span class="comment">/* As avertised, handle the rcv_wnd update: the latest ACK we are handling here contains the</span></div>
+<div class="line"><a id="l02517" name="l02517"></a><span class="lineno"> 2517</span><span class="comment">   * latest info about the Receive buffer space on the other side that is available. */</span></div>
+<div class="line"><a id="l02518" name="l02518"></a><span class="lineno"> 2518</span>  <span class="keywordflow">if</span> (sock-&gt;m_snd_pending_rcv_wnd != sock-&gt;m_snd_remote_rcv_wnd)</div>
+<div class="line"><a id="l02519" name="l02519"></a><span class="lineno"> 2519</span>  {</div>
+<div class="line"><a id="l02520" name="l02520"></a><span class="lineno"> 2520</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Other side advertised &quot;</span></div>
+<div class="line"><a id="l02521" name="l02521"></a><span class="lineno"> 2521</span>                   <span class="stringliteral">&quot;rcv_wnd change [&quot;</span> &lt;&lt; sock-&gt;m_snd_remote_rcv_wnd &lt;&lt; <span class="stringliteral">&quot;] =&gt; [&quot;</span> &lt;&lt; sock-&gt;m_snd_pending_rcv_wnd &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l02522" name="l02522"></a><span class="lineno"> 2522</span>    sock-&gt;m_snd_remote_rcv_wnd = sock-&gt;m_snd_pending_rcv_wnd;</div>
+<div class="line"><a id="l02523" name="l02523"></a><span class="lineno"> 2523</span>    <span class="comment">/* Why have this intermediate m_snd_pending_rcv_wnd thing at all then?  Answer: can_send(),</span></div>
+<div class="line"><a id="l02524" name="l02524"></a><span class="lineno"> 2524</span><span class="comment">     * checked at the start of this method and saved into could_send_before_acks, uses the &quot;before</span></div>
+<div class="line"><a id="l02525" name="l02525"></a><span class="lineno"> 2525</span><span class="comment">     * handling the ACKs&quot; state, which should not yet include the receive window update.  Then</span></div>
+<div class="line"><a id="l02526" name="l02526"></a><span class="lineno"> 2526</span><span class="comment">     * since we update m_snd_remote_rcv_wnd after that is computed, but before can_send() is</span></div>
+<div class="line"><a id="l02527" name="l02527"></a><span class="lineno"> 2527</span><span class="comment">     * re-checked just below, we are able to see if the ACKs have changed can_send() from false to</span></div>
+<div class="line"><a id="l02528" name="l02528"></a><span class="lineno"> 2528</span><span class="comment">     * true. */</span></div>
 <div class="line"><a id="l02529" name="l02529"></a><span class="lineno"> 2529</span> </div>
-<div class="line"><a id="l02530" name="l02530"></a><span class="lineno"> 2530</span>  <span class="comment">/* We&#39;ve received ACKs and thus have quite likely reduced the number of bytes we</span></div>
-<div class="line"><a id="l02531" name="l02531"></a><span class="lineno"> 2531</span><span class="comment">   * consider In-flight.  Moreover we may have increased CWND.  Moreover we may have added packets</span></div>
-<div class="line"><a id="l02532" name="l02532"></a><span class="lineno"> 2532</span><span class="comment">   * to retransmit queue (if retransmission is on).  Moreover we may have increased m_snd_remote_rcv_wnd.</span></div>
-<div class="line"><a id="l02533" name="l02533"></a><span class="lineno"> 2533</span><span class="comment">   * Therefore can_send() may now return true while at the beginning of the method it returned</span></div>
-<div class="line"><a id="l02534" name="l02534"></a><span class="lineno"> 2534</span><span class="comment">   * false; and similarly for snd_deqable().  So have send_worker() check and send more if possible.</span></div>
-<div class="line"><a id="l02535" name="l02535"></a><span class="lineno"> 2535</span><span class="comment">   * See Node::send() for discussion of overall strategy on this topic. */</span></div>
-<div class="line"><a id="l02536" name="l02536"></a><span class="lineno"> 2536</span>  <span class="keywordflow">if</span> ((!could_send_before_acks) || (<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> &amp;&amp; (!had_rexmit_data_before_acks)))</div>
-<div class="line"><a id="l02537" name="l02537"></a><span class="lineno"> 2537</span>  {</div>
-<div class="line"><a id="l02538" name="l02538"></a><span class="lineno"> 2538</span>    send_worker(sock, <span class="keyword">true</span>);</div>
-<div class="line"><a id="l02539" name="l02539"></a><span class="lineno"> 2539</span>    <span class="comment">/* ^-- defer_delta_check == true: because the only way to get to this method is from</span></div>
-<div class="line"><a id="l02540" name="l02540"></a><span class="lineno"> 2540</span><span class="comment">     * async_low_lvl_recv(), which will perform event_set_all_check_delta(false) at the end of itself,</span></div>
-<div class="line"><a id="l02541" name="l02541"></a><span class="lineno"> 2541</span><span class="comment">     * before the boost.asio handler exits.  See Node::m_sock_events doc header for details. */</span></div>
-<div class="line"><a id="l02542" name="l02542"></a><span class="lineno"> 2542</span>  }</div>
-<div class="line"><a id="l02543" name="l02543"></a><span class="lineno"> 2543</span>} <span class="comment">// Node::handle_accumulated_acks()</span></div>
-<div class="line"><a id="l02544" name="l02544"></a><span class="lineno"> 2544</span> </div>
-<div class="line"><a id="l02545" name="l02545"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a055ee380cf87f83c06d7380821c4679e"> 2545</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a055ee380cf87f83c06d7380821c4679e">Node::categorize_individual_ack</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
-<div class="line"><a id="l02546" name="l02546"></a><span class="lineno"> 2546</span>                                     <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">Ack_packet::Individual_ack::Const_ptr</a> ack,</div>
-<div class="line"><a id="l02547" name="l02547"></a><span class="lineno"> 2547</span>                                     <span class="keywordtype">bool</span>* dupe_or_late, <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a>* acked_pkt_it)</div>
-<div class="line"><a id="l02548" name="l02548"></a><span class="lineno"> 2548</span>{</div>
-<div class="line"><a id="l02549" name="l02549"></a><span class="lineno"> 2549</span>  assert(dupe_or_late);</div>
-<div class="line"><a id="l02550" name="l02550"></a><span class="lineno"> 2550</span>  assert(acked_pkt_it);</div>
-<div class="line"><a id="l02551" name="l02551"></a><span class="lineno"> 2551</span> </div>
-<div class="line"><a id="l02552" name="l02552"></a><span class="lineno"> 2552</span>  <span class="comment">/* This helper of handle_accumulated_acks() exists to make the latter method briefer/readable, not for code reuse</span></div>
-<div class="line"><a id="l02553" name="l02553"></a><span class="lineno"> 2553</span><span class="comment">   * as of this writing. It figures out whether the given individual ack is invalid, valid but duplicate/late, or</span></div>
-<div class="line"><a id="l02554" name="l02554"></a><span class="lineno"> 2554</span><span class="comment">   * valid and on-time. Results go into the return value and *dupe_or_late and *acked_pkt_it. */</span></div>
-<div class="line"><a id="l02555" name="l02555"></a><span class="lineno"> 2555</span> </div>
-<div class="line"><a id="l02556" name="l02556"></a><span class="lineno"> 2556</span>  <span class="comment">/* Now to discuss what happens when an ACK is received, with a seemingly valid sequence number</span></div>
-<div class="line"><a id="l02557" name="l02557"></a><span class="lineno"> 2557</span><span class="comment">   * (i.e., in [m_snd_init_seq_num + 1, m_snd_next_seq_num - 1] range) -- but the corresponding</span></div>
-<div class="line"><a id="l02558" name="l02558"></a><span class="lineno"> 2558</span><span class="comment">   * packet is not in m_snd_flying_pkts_by_seq_num.  What does this mean?  One, unlikely, possibility is</span></div>
-<div class="line"><a id="l02559" name="l02559"></a><span class="lineno"> 2559</span><span class="comment">   * that it&#39;s a fake/wrong acknowledgment, not pertaining to any packet we&#39;d sent but in the range</span></div>
-<div class="line"><a id="l02560" name="l02560"></a><span class="lineno"> 2560</span><span class="comment">   * of sequence numbers we did send (in other words, the sequence number is in the right range but</span></div>
-<div class="line"><a id="l02561" name="l02561"></a><span class="lineno"> 2561</span><span class="comment">   * doesn&#39;t correspond to a first sequence number of a packet we&#39;d really sent).  Unfortunately we</span></div>
-<div class="line"><a id="l02562" name="l02562"></a><span class="lineno"> 2562</span><span class="comment">   * have no way to detect that fully, since it&#39;s not in m_snd_flying_pkts_by_seq_num, and that&#39;s basically the only</span></div>
-<div class="line"><a id="l02563" name="l02563"></a><span class="lineno"> 2563</span><span class="comment">   * place we store packet boundaries of sent packets.  Suppose we eliminate that possibility.</span></div>
-<div class="line"><a id="l02564" name="l02564"></a><span class="lineno"> 2564</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02565" name="l02565"></a><span class="lineno"> 2565</span><span class="comment">   * Then the only remaining possibility is that this acknowledgment is a duplicate of a previous</span></div>
-<div class="line"><a id="l02566" name="l02566"></a><span class="lineno"> 2566</span><span class="comment">   * one, which had caused us to remove that packet from m_snd_flying_pkts_by_seq_num.  So, how DO we handle</span></div>
-<div class="line"><a id="l02567" name="l02567"></a><span class="lineno"> 2567</span><span class="comment">   * a duplicate acknowledgment?  We already know they got packet, as we&#39;ve already measured RTT</span></div>
-<div class="line"><a id="l02568" name="l02568"></a><span class="lineno"> 2568</span><span class="comment">   * from the previous copy of this ack, so there&#39;s nothing useful for us.  Conclusion: ignore</span></div>
-<div class="line"><a id="l02569" name="l02569"></a><span class="lineno"> 2569</span><span class="comment">   * duplicate acknowledgments.</span></div>
+<div class="line"><a id="l02530" name="l02530"></a><span class="lineno"> 2530</span>    <span class="comment">/* Register whether after this window update, if we had a packet to send and no data In-flight,</span></div>
+<div class="line"><a id="l02531" name="l02531"></a><span class="lineno"> 2531</span><span class="comment">     * we would be able to send at least one full DATA packet or not (i.e., can_send() would return</span></div>
+<div class="line"><a id="l02532" name="l02532"></a><span class="lineno"> 2532</span><span class="comment">     * true). That is, register whether Receive window is ~0. */</span></div>
+<div class="line"><a id="l02533" name="l02533"></a><span class="lineno"> 2533</span>    sock-&gt;m_snd_stats.updated_rcv_wnd(sock-&gt;m_snd_remote_rcv_wnd &lt; sock-&gt;max_block_size());</div>
+<div class="line"><a id="l02534" name="l02534"></a><span class="lineno"> 2534</span>  }</div>
+<div class="line"><a id="l02535" name="l02535"></a><span class="lineno"> 2535</span> </div>
+<div class="line"><a id="l02536" name="l02536"></a><span class="lineno"> 2536</span>  <span class="comment">/* We&#39;ve received ACKs and thus have quite likely reduced the number of bytes we</span></div>
+<div class="line"><a id="l02537" name="l02537"></a><span class="lineno"> 2537</span><span class="comment">   * consider In-flight.  Moreover we may have increased CWND.  Moreover we may have added packets</span></div>
+<div class="line"><a id="l02538" name="l02538"></a><span class="lineno"> 2538</span><span class="comment">   * to retransmit queue (if retransmission is on).  Moreover we may have increased m_snd_remote_rcv_wnd.</span></div>
+<div class="line"><a id="l02539" name="l02539"></a><span class="lineno"> 2539</span><span class="comment">   * Therefore can_send() may now return true while at the beginning of the method it returned</span></div>
+<div class="line"><a id="l02540" name="l02540"></a><span class="lineno"> 2540</span><span class="comment">   * false; and similarly for snd_deqable().  So have send_worker() check and send more if possible.</span></div>
+<div class="line"><a id="l02541" name="l02541"></a><span class="lineno"> 2541</span><span class="comment">   * See Node::send() for discussion of overall strategy on this topic. */</span></div>
+<div class="line"><a id="l02542" name="l02542"></a><span class="lineno"> 2542</span>  <span class="keywordflow">if</span> ((!could_send_before_acks) || (<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> &amp;&amp; (!had_rexmit_data_before_acks)))</div>
+<div class="line"><a id="l02543" name="l02543"></a><span class="lineno"> 2543</span>  {</div>
+<div class="line"><a id="l02544" name="l02544"></a><span class="lineno"> 2544</span>    send_worker(sock, <span class="keyword">true</span>);</div>
+<div class="line"><a id="l02545" name="l02545"></a><span class="lineno"> 2545</span>    <span class="comment">/* ^-- defer_delta_check == true: because the only way to get to this method is from</span></div>
+<div class="line"><a id="l02546" name="l02546"></a><span class="lineno"> 2546</span><span class="comment">     * async_low_lvl_recv(), which will perform event_set_all_check_delta(false) at the end of itself,</span></div>
+<div class="line"><a id="l02547" name="l02547"></a><span class="lineno"> 2547</span><span class="comment">     * before the boost.asio handler exits.  See Node::m_sock_events doc header for details. */</span></div>
+<div class="line"><a id="l02548" name="l02548"></a><span class="lineno"> 2548</span>  }</div>
+<div class="line"><a id="l02549" name="l02549"></a><span class="lineno"> 2549</span>} <span class="comment">// Node::handle_accumulated_acks()</span></div>
+<div class="line"><a id="l02550" name="l02550"></a><span class="lineno"> 2550</span> </div>
+<div class="line"><a id="l02551" name="l02551"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a055ee380cf87f83c06d7380821c4679e"> 2551</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a055ee380cf87f83c06d7380821c4679e">Node::categorize_individual_ack</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
+<div class="line"><a id="l02552" name="l02552"></a><span class="lineno"> 2552</span>                                     <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">Ack_packet::Individual_ack::Const_ptr</a> ack,</div>
+<div class="line"><a id="l02553" name="l02553"></a><span class="lineno"> 2553</span>                                     <span class="keywordtype">bool</span>* dupe_or_late, <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a>* acked_pkt_it)</div>
+<div class="line"><a id="l02554" name="l02554"></a><span class="lineno"> 2554</span>{</div>
+<div class="line"><a id="l02555" name="l02555"></a><span class="lineno"> 2555</span>  assert(dupe_or_late);</div>
+<div class="line"><a id="l02556" name="l02556"></a><span class="lineno"> 2556</span>  assert(acked_pkt_it);</div>
+<div class="line"><a id="l02557" name="l02557"></a><span class="lineno"> 2557</span> </div>
+<div class="line"><a id="l02558" name="l02558"></a><span class="lineno"> 2558</span>  <span class="comment">/* This helper of handle_accumulated_acks() exists to make the latter method briefer/readable, not for code reuse</span></div>
+<div class="line"><a id="l02559" name="l02559"></a><span class="lineno"> 2559</span><span class="comment">   * as of this writing. It figures out whether the given individual ack is invalid, valid but duplicate/late, or</span></div>
+<div class="line"><a id="l02560" name="l02560"></a><span class="lineno"> 2560</span><span class="comment">   * valid and on-time. Results go into the return value and *dupe_or_late and *acked_pkt_it. */</span></div>
+<div class="line"><a id="l02561" name="l02561"></a><span class="lineno"> 2561</span> </div>
+<div class="line"><a id="l02562" name="l02562"></a><span class="lineno"> 2562</span>  <span class="comment">/* Now to discuss what happens when an ACK is received, with a seemingly valid sequence number</span></div>
+<div class="line"><a id="l02563" name="l02563"></a><span class="lineno"> 2563</span><span class="comment">   * (i.e., in [m_snd_init_seq_num + 1, m_snd_next_seq_num - 1] range) -- but the corresponding</span></div>
+<div class="line"><a id="l02564" name="l02564"></a><span class="lineno"> 2564</span><span class="comment">   * packet is not in m_snd_flying_pkts_by_seq_num.  What does this mean?  One, unlikely, possibility is</span></div>
+<div class="line"><a id="l02565" name="l02565"></a><span class="lineno"> 2565</span><span class="comment">   * that it&#39;s a fake/wrong acknowledgment, not pertaining to any packet we&#39;d sent but in the range</span></div>
+<div class="line"><a id="l02566" name="l02566"></a><span class="lineno"> 2566</span><span class="comment">   * of sequence numbers we did send (in other words, the sequence number is in the right range but</span></div>
+<div class="line"><a id="l02567" name="l02567"></a><span class="lineno"> 2567</span><span class="comment">   * doesn&#39;t correspond to a first sequence number of a packet we&#39;d really sent).  Unfortunately we</span></div>
+<div class="line"><a id="l02568" name="l02568"></a><span class="lineno"> 2568</span><span class="comment">   * have no way to detect that fully, since it&#39;s not in m_snd_flying_pkts_by_seq_num, and that&#39;s basically the only</span></div>
+<div class="line"><a id="l02569" name="l02569"></a><span class="lineno"> 2569</span><span class="comment">   * place we store packet boundaries of sent packets.  Suppose we eliminate that possibility.</span></div>
 <div class="line"><a id="l02570" name="l02570"></a><span class="lineno"> 2570</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02571" name="l02571"></a><span class="lineno"> 2571</span><span class="comment">   * Note that the above discussion pertains to a dupe ack where both the sequence number and the</span></div>
-<div class="line"><a id="l02572" name="l02572"></a><span class="lineno"> 2572</span><span class="comment">   * retransmission ID are the same as a previous one.  If the retransmission ID is different (only</span></div>
-<div class="line"><a id="l02573" name="l02573"></a><span class="lineno"> 2573</span><span class="comment">   * legal when retransmission is enabled), that&#39;s a different situation -- the acknowledgment is</span></div>
-<div class="line"><a id="l02574" name="l02574"></a><span class="lineno"> 2574</span><span class="comment">   * not duplicate but rather acknowledging a different send attempt for the same-numbered packet.</span></div>
-<div class="line"><a id="l02575" name="l02575"></a><span class="lineno"> 2575</span><span class="comment">   * That is less of a corner case and is handled below explicitly.</span></div>
+<div class="line"><a id="l02571" name="l02571"></a><span class="lineno"> 2571</span><span class="comment">   * Then the only remaining possibility is that this acknowledgment is a duplicate of a previous</span></div>
+<div class="line"><a id="l02572" name="l02572"></a><span class="lineno"> 2572</span><span class="comment">   * one, which had caused us to remove that packet from m_snd_flying_pkts_by_seq_num.  So, how DO we handle</span></div>
+<div class="line"><a id="l02573" name="l02573"></a><span class="lineno"> 2573</span><span class="comment">   * a duplicate acknowledgment?  We already know they got packet, as we&#39;ve already measured RTT</span></div>
+<div class="line"><a id="l02574" name="l02574"></a><span class="lineno"> 2574</span><span class="comment">   * from the previous copy of this ack, so there&#39;s nothing useful for us.  Conclusion: ignore</span></div>
+<div class="line"><a id="l02575" name="l02575"></a><span class="lineno"> 2575</span><span class="comment">   * duplicate acknowledgments.</span></div>
 <div class="line"><a id="l02576" name="l02576"></a><span class="lineno"> 2576</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02577" name="l02577"></a><span class="lineno"> 2577</span><span class="comment">   * Sent, unacknowledged packets are eventually considered Dropped.  In terms of our data structures</span></div>
-<div class="line"><a id="l02578" name="l02578"></a><span class="lineno"> 2578</span><span class="comment">   * they are handled just like acknowledged ones.  Therefore, an acknowledgment of such a Dropped</span></div>
-<div class="line"><a id="l02579" name="l02579"></a><span class="lineno"> 2579</span><span class="comment">   * packet may arrive.  This is a &quot;late&quot; acknowledgment.  It is treated just like a duplicate</span></div>
-<div class="line"><a id="l02580" name="l02580"></a><span class="lineno"> 2580</span><span class="comment">   * acknowledgment (in fact, there is no way to tell them apart).  (Note that a packet is still</span></div>
-<div class="line"><a id="l02581" name="l02581"></a><span class="lineno"> 2581</span><span class="comment">   * considered Dropped even if retransmission is on -- it&#39;s just that in that case it&#39;s also queued</span></div>
-<div class="line"><a id="l02582" name="l02582"></a><span class="lineno"> 2582</span><span class="comment">   * on the retransmission queue to be re-sent when possible.)</span></div>
-<div class="line"><a id="l02583" name="l02583"></a><span class="lineno"> 2583</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02584" name="l02584"></a><span class="lineno"> 2584</span><span class="comment">   * Another caveat is that two acknowledgments that are duplicates of each other can get</span></div>
-<div class="line"><a id="l02585" name="l02585"></a><span class="lineno"> 2585</span><span class="comment">   * mis-ordered and thus arrive in opposite order.  Thus the one with the longer one-way time would</span></div>
-<div class="line"><a id="l02586" name="l02586"></a><span class="lineno"> 2586</span><span class="comment">   * yield the higher RTT, while the shorter one would get ignored.  However, RTT measurement is an</span></div>
-<div class="line"><a id="l02587" name="l02587"></a><span class="lineno"> 2587</span><span class="comment">   * art, not a science, so this is acceptable.</span></div>
-<div class="line"><a id="l02588" name="l02588"></a><span class="lineno"> 2588</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02589" name="l02589"></a><span class="lineno"> 2589</span><span class="comment">   * @todo Acknowledgments themselves could actually be identified with something other other</span></div>
-<div class="line"><a id="l02590" name="l02590"></a><span class="lineno"> 2590</span><span class="comment">   * than sequence numbers and retransmission IDs; e.g., with reflected sender time stamps.  Then</span></div>
-<div class="line"><a id="l02591" name="l02591"></a><span class="lineno"> 2591</span><span class="comment">   * one could do fancier stuff... but let&#39;s not overdo it for now. */</span></div>
-<div class="line"><a id="l02592" name="l02592"></a><span class="lineno"> 2592</span> </div>
-<div class="line"><a id="l02593" name="l02593"></a><span class="lineno"> 2593</span>  <span class="comment">// For brevity and a little speed:</span></div>
-<div class="line"><a id="l02594" name="l02594"></a><span class="lineno"> 2594</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> = sock-&gt;rexmit_on();</div>
-<div class="line"><a id="l02595" name="l02595"></a><span class="lineno"> 2595</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
-<div class="line"><a id="l02596" name="l02596"></a><span class="lineno"> 2596</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_seq = sock-&gt;m_snd_flying_pkts_by_seq_num;</div>
-<div class="line"><a id="l02597" name="l02597"></a><span class="lineno"> 2597</span>  <span class="keyword">auto</span>&amp; snd_stats = sock-&gt;m_snd_stats;</div>
+<div class="line"><a id="l02577" name="l02577"></a><span class="lineno"> 2577</span><span class="comment">   * Note that the above discussion pertains to a dupe ack where both the sequence number and the</span></div>
+<div class="line"><a id="l02578" name="l02578"></a><span class="lineno"> 2578</span><span class="comment">   * retransmission ID are the same as a previous one.  If the retransmission ID is different (only</span></div>
+<div class="line"><a id="l02579" name="l02579"></a><span class="lineno"> 2579</span><span class="comment">   * legal when retransmission is enabled), that&#39;s a different situation -- the acknowledgment is</span></div>
+<div class="line"><a id="l02580" name="l02580"></a><span class="lineno"> 2580</span><span class="comment">   * not duplicate but rather acknowledging a different send attempt for the same-numbered packet.</span></div>
+<div class="line"><a id="l02581" name="l02581"></a><span class="lineno"> 2581</span><span class="comment">   * That is less of a corner case and is handled below explicitly.</span></div>
+<div class="line"><a id="l02582" name="l02582"></a><span class="lineno"> 2582</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02583" name="l02583"></a><span class="lineno"> 2583</span><span class="comment">   * Sent, unacknowledged packets are eventually considered Dropped.  In terms of our data structures</span></div>
+<div class="line"><a id="l02584" name="l02584"></a><span class="lineno"> 2584</span><span class="comment">   * they are handled just like acknowledged ones.  Therefore, an acknowledgment of such a Dropped</span></div>
+<div class="line"><a id="l02585" name="l02585"></a><span class="lineno"> 2585</span><span class="comment">   * packet may arrive.  This is a &quot;late&quot; acknowledgment.  It is treated just like a duplicate</span></div>
+<div class="line"><a id="l02586" name="l02586"></a><span class="lineno"> 2586</span><span class="comment">   * acknowledgment (in fact, there is no way to tell them apart).  (Note that a packet is still</span></div>
+<div class="line"><a id="l02587" name="l02587"></a><span class="lineno"> 2587</span><span class="comment">   * considered Dropped even if retransmission is on -- it&#39;s just that in that case it&#39;s also queued</span></div>
+<div class="line"><a id="l02588" name="l02588"></a><span class="lineno"> 2588</span><span class="comment">   * on the retransmission queue to be re-sent when possible.)</span></div>
+<div class="line"><a id="l02589" name="l02589"></a><span class="lineno"> 2589</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02590" name="l02590"></a><span class="lineno"> 2590</span><span class="comment">   * Another caveat is that two acknowledgments that are duplicates of each other can get</span></div>
+<div class="line"><a id="l02591" name="l02591"></a><span class="lineno"> 2591</span><span class="comment">   * mis-ordered and thus arrive in opposite order.  Thus the one with the longer one-way time would</span></div>
+<div class="line"><a id="l02592" name="l02592"></a><span class="lineno"> 2592</span><span class="comment">   * yield the higher RTT, while the shorter one would get ignored.  However, RTT measurement is an</span></div>
+<div class="line"><a id="l02593" name="l02593"></a><span class="lineno"> 2593</span><span class="comment">   * art, not a science, so this is acceptable.</span></div>
+<div class="line"><a id="l02594" name="l02594"></a><span class="lineno"> 2594</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02595" name="l02595"></a><span class="lineno"> 2595</span><span class="comment">   * @todo Acknowledgments themselves could actually be identified with something other other</span></div>
+<div class="line"><a id="l02596" name="l02596"></a><span class="lineno"> 2596</span><span class="comment">   * than sequence numbers and retransmission IDs; e.g., with reflected sender time stamps.  Then</span></div>
+<div class="line"><a id="l02597" name="l02597"></a><span class="lineno"> 2597</span><span class="comment">   * one could do fancier stuff... but let&#39;s not overdo it for now. */</span></div>
 <div class="line"><a id="l02598" name="l02598"></a><span class="lineno"> 2598</span> </div>
-<div class="line"><a id="l02599" name="l02599"></a><span class="lineno"> 2599</span>  <span class="comment">// First sequence number in acknowledged packet.</span></div>
-<div class="line"><a id="l02600" name="l02600"></a><span class="lineno"> 2600</span>  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num = ack-&gt;m_seq_num;</div>
-<div class="line"><a id="l02601" name="l02601"></a><span class="lineno"> 2601</span>  <span class="comment">// Retransmission ID (0 = first attempt, 1 = 1st retransmission, 2 = 2nd, ...).</span></div>
-<div class="line"><a id="l02602" name="l02602"></a><span class="lineno"> 2602</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rexmit_id = ack-&gt;m_rexmit_id;</div>
-<div class="line"><a id="l02603" name="l02603"></a><span class="lineno"> 2603</span>  assert(<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> || (rexmit_id == 0)); <span class="comment">// Should be guaranteed by deserialization.</span></div>
+<div class="line"><a id="l02599" name="l02599"></a><span class="lineno"> 2599</span>  <span class="comment">// For brevity and a little speed:</span></div>
+<div class="line"><a id="l02600" name="l02600"></a><span class="lineno"> 2600</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> = sock-&gt;rexmit_on();</div>
+<div class="line"><a id="l02601" name="l02601"></a><span class="lineno"> 2601</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
+<div class="line"><a id="l02602" name="l02602"></a><span class="lineno"> 2602</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_seq = sock-&gt;m_snd_flying_pkts_by_seq_num;</div>
+<div class="line"><a id="l02603" name="l02603"></a><span class="lineno"> 2603</span>  <span class="keyword">auto</span>&amp; snd_stats = sock-&gt;m_snd_stats;</div>
 <div class="line"><a id="l02604" name="l02604"></a><span class="lineno"> 2604</span> </div>
-<div class="line"><a id="l02605" name="l02605"></a><span class="lineno"> 2605</span>  <span class="comment">// Register one individual acknowledgment of unknown # of bytes of data (may or may not be acceptable).</span></div>
-<div class="line"><a id="l02606" name="l02606"></a><span class="lineno"> 2606</span>  snd_stats.received_ack();</div>
-<div class="line"><a id="l02607" name="l02607"></a><span class="lineno"> 2607</span> </div>
-<div class="line"><a id="l02608" name="l02608"></a><span class="lineno"> 2608</span>  <span class="comment">/* Ensure it&#39;s within the range of sequence numbers we&#39;ve already sent.</span></div>
-<div class="line"><a id="l02609" name="l02609"></a><span class="lineno"> 2609</span><span class="comment">   * Note that this doesn&#39;t really guarantee its validity.  It could be in that range but still</span></div>
-<div class="line"><a id="l02610" name="l02610"></a><span class="lineno"> 2610</span><span class="comment">   * not correspond to any packet we&#39;d actually sent.  We try to detect that below. */</span></div>
-<div class="line"><a id="l02611" name="l02611"></a><span class="lineno"> 2611</span> </div>
-<div class="line"><a id="l02612" name="l02612"></a><span class="lineno"> 2612</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="namespaceflow_1_1util.html#a733448fee07c2a77e343a3f1590ff82e">util::in_open_open_range</a>(sock-&gt;m_snd_init_seq_num, seq_num, sock-&gt;m_snd_next_seq_num))</div>
-<div class="line"><a id="l02613" name="l02613"></a><span class="lineno"> 2613</span>  {</div>
-<div class="line"><a id="l02614" name="l02614"></a><span class="lineno"> 2614</span>    <span class="comment">/* Either the other side is an a-hole, or somehow a socket_id was reused from a recent</span></div>
-<div class="line"><a id="l02615" name="l02615"></a><span class="lineno"> 2615</span><span class="comment">     * connection, which we do try to avoid like the plague.  Therefore, send them an RST and</span></div>
-<div class="line"><a id="l02616" name="l02616"></a><span class="lineno"> 2616</span><span class="comment">     * abort connection.  If they send more data packets to this port (which is quite possible;</span></div>
-<div class="line"><a id="l02617" name="l02617"></a><span class="lineno"> 2617</span><span class="comment">     * many could already be on the way), they&#39;ll get more RSTs still. */</span></div>
-<div class="line"><a id="l02618" name="l02618"></a><span class="lineno"> 2618</span> </div>
-<div class="line"><a id="l02619" name="l02619"></a><span class="lineno"> 2619</span>    <span class="comment">// Interesting/rare enough to log a WARNING.</span></div>
-<div class="line"><a id="l02620" name="l02620"></a><span class="lineno"> 2620</span>    <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
-<div class="line"><a id="l02621" name="l02621"></a><span class="lineno"> 2621</span>                     <span class="stringliteral">&quot;Received [ACK]; &quot;</span></div>
-<div class="line"><a id="l02622" name="l02622"></a><span class="lineno"> 2622</span>                     <span class="stringliteral">&quot;acknowledgment [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) is outside (ISN, snd_next) &quot;</span></div>
-<div class="line"><a id="l02623" name="l02623"></a><span class="lineno"> 2623</span>                     <span class="stringliteral">&quot;range (&quot;</span> &lt;&lt; sock-&gt;m_snd_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; sock-&gt;m_snd_next_seq_num &lt;&lt; <span class="stringliteral">&quot;).&quot;</span>);</div>
+<div class="line"><a id="l02605" name="l02605"></a><span class="lineno"> 2605</span>  <span class="comment">// First sequence number in acknowledged packet.</span></div>
+<div class="line"><a id="l02606" name="l02606"></a><span class="lineno"> 2606</span>  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num = ack-&gt;m_seq_num;</div>
+<div class="line"><a id="l02607" name="l02607"></a><span class="lineno"> 2607</span>  <span class="comment">// Retransmission ID (0 = first attempt, 1 = 1st retransmission, 2 = 2nd, ...).</span></div>
+<div class="line"><a id="l02608" name="l02608"></a><span class="lineno"> 2608</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rexmit_id = ack-&gt;m_rexmit_id;</div>
+<div class="line"><a id="l02609" name="l02609"></a><span class="lineno"> 2609</span>  assert(<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> || (rexmit_id == 0)); <span class="comment">// Should be guaranteed by deserialization.</span></div>
+<div class="line"><a id="l02610" name="l02610"></a><span class="lineno"> 2610</span> </div>
+<div class="line"><a id="l02611" name="l02611"></a><span class="lineno"> 2611</span>  <span class="comment">// Register one individual acknowledgment of unknown # of bytes of data (may or may not be acceptable).</span></div>
+<div class="line"><a id="l02612" name="l02612"></a><span class="lineno"> 2612</span>  snd_stats.received_ack();</div>
+<div class="line"><a id="l02613" name="l02613"></a><span class="lineno"> 2613</span> </div>
+<div class="line"><a id="l02614" name="l02614"></a><span class="lineno"> 2614</span>  <span class="comment">/* Ensure it&#39;s within the range of sequence numbers we&#39;ve already sent.</span></div>
+<div class="line"><a id="l02615" name="l02615"></a><span class="lineno"> 2615</span><span class="comment">   * Note that this doesn&#39;t really guarantee its validity.  It could be in that range but still</span></div>
+<div class="line"><a id="l02616" name="l02616"></a><span class="lineno"> 2616</span><span class="comment">   * not correspond to any packet we&#39;d actually sent.  We try to detect that below. */</span></div>
+<div class="line"><a id="l02617" name="l02617"></a><span class="lineno"> 2617</span> </div>
+<div class="line"><a id="l02618" name="l02618"></a><span class="lineno"> 2618</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="namespaceflow_1_1util.html#a733448fee07c2a77e343a3f1590ff82e">util::in_open_open_range</a>(sock-&gt;m_snd_init_seq_num, seq_num, sock-&gt;m_snd_next_seq_num))</div>
+<div class="line"><a id="l02619" name="l02619"></a><span class="lineno"> 2619</span>  {</div>
+<div class="line"><a id="l02620" name="l02620"></a><span class="lineno"> 2620</span>    <span class="comment">/* Either the other side is an a-hole, or somehow a socket_id was reused from a recent</span></div>
+<div class="line"><a id="l02621" name="l02621"></a><span class="lineno"> 2621</span><span class="comment">     * connection, which we do try to avoid like the plague.  Therefore, send them an RST and</span></div>
+<div class="line"><a id="l02622" name="l02622"></a><span class="lineno"> 2622</span><span class="comment">     * abort connection.  If they send more data packets to this port (which is quite possible;</span></div>
+<div class="line"><a id="l02623" name="l02623"></a><span class="lineno"> 2623</span><span class="comment">     * many could already be on the way), they&#39;ll get more RSTs still. */</span></div>
 <div class="line"><a id="l02624" name="l02624"></a><span class="lineno"> 2624</span> </div>
-<div class="line"><a id="l02625" name="l02625"></a><span class="lineno"> 2625</span>    <span class="comment">// Register one individual acknowledgment of unknown # of bytes of data (not acceptable due to error).</span></div>
-<div class="line"><a id="l02626" name="l02626"></a><span class="lineno"> 2626</span>    snd_stats.error_ack();</div>
-<div class="line"><a id="l02627" name="l02627"></a><span class="lineno"> 2627</span> </div>
-<div class="line"><a id="l02628" name="l02628"></a><span class="lineno"> 2628</span>    <span class="comment">/* Close connection in our structures (inform user if necessary as well).  Pre-conditions</span></div>
-<div class="line"><a id="l02629" name="l02629"></a><span class="lineno"> 2629</span><span class="comment">     * assumed by call: sock in m_socks and sock-&gt;state() == S_OPEN (yes, since m_int_state ==</span></div>
-<div class="line"><a id="l02630" name="l02630"></a><span class="lineno"> 2630</span><span class="comment">     * S_ESTABLISHED); 3rd arg contains the reason for the close (yes).  This will empty the Send</span></div>
-<div class="line"><a id="l02631" name="l02631"></a><span class="lineno"> 2631</span><span class="comment">     * and Receive buffers.  That is OK, because this is the abrupt type of close (error). */</span></div>
-<div class="line"><a id="l02632" name="l02632"></a><span class="lineno"> 2632</span>    rst_and_close_connection_immediately(socket_id, sock,</div>
-<div class="line"><a id="l02633" name="l02633"></a><span class="lineno"> 2633</span>                                         <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a891201a96c5838bbb24cc9ed08b47765">error::Code::S_SEQ_NUM_IMPLIES_CONNECTION_COLLISION</a>, <span class="keyword">true</span>);</div>
-<div class="line"><a id="l02634" name="l02634"></a><span class="lineno"> 2634</span>    <span class="comment">/* ^-- defer_delta_check == true: because the only way to get to this method is from</span></div>
-<div class="line"><a id="l02635" name="l02635"></a><span class="lineno"> 2635</span><span class="comment">     * async_low_lvl_recv(), which will perform event_set_all_check_delta(false) at the end of itself,</span></div>
-<div class="line"><a id="l02636" name="l02636"></a><span class="lineno"> 2636</span><span class="comment">     * before the boost.asio handler exits.  See Node::m_sock_events doc header for details. */</span></div>
-<div class="line"><a id="l02637" name="l02637"></a><span class="lineno"> 2637</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Other out-params are meaningless.</span></div>
-<div class="line"><a id="l02638" name="l02638"></a><span class="lineno"> 2638</span>  }</div>
-<div class="line"><a id="l02639" name="l02639"></a><span class="lineno"> 2639</span>  <span class="comment">// else within sane range.</span></div>
-<div class="line"><a id="l02640" name="l02640"></a><span class="lineno"> 2640</span> </div>
-<div class="line"><a id="l02641" name="l02641"></a><span class="lineno"> 2641</span>  <span class="comment">// Check if the sequence number matches that of one of the packets we&#39;ve sent and want acnowledged.</span></div>
-<div class="line"><a id="l02642" name="l02642"></a><span class="lineno"> 2642</span>  *acked_pkt_it = snd_flying_pkts_by_when.find(seq_num);</div>
-<div class="line"><a id="l02643" name="l02643"></a><span class="lineno"> 2643</span>  <span class="keywordflow">if</span> (*acked_pkt_it == snd_flying_pkts_by_when.past_oldest()) <span class="comment">// A/k/a end().</span></div>
-<div class="line"><a id="l02644" name="l02644"></a><span class="lineno"> 2644</span>  {</div>
-<div class="line"><a id="l02645" name="l02645"></a><span class="lineno"> 2645</span>    <span class="comment">/* No such packet.  Assuming no foul play/dumbassery, it&#39;s probably a duplicate acknowledgment</span></div>
-<div class="line"><a id="l02646" name="l02646"></a><span class="lineno"> 2646</span><span class="comment">     * (i.e., we&#39;ve already sent and got the ack, removing that packet from snd_flying_pkts*)</span></div>
-<div class="line"><a id="l02647" name="l02647"></a><span class="lineno"> 2647</span><span class="comment">     * or a late acknowledgment (i.e., we&#39;ve already sent and eventually considered Dropped the</span></div>
-<div class="line"><a id="l02648" name="l02648"></a><span class="lineno"> 2648</span><span class="comment">     * the packet, removing it from snd_flying_pkts*).</span></div>
-<div class="line"><a id="l02649" name="l02649"></a><span class="lineno"> 2649</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02650" name="l02650"></a><span class="lineno"> 2650</span><span class="comment">     * There is a corner case if retransmission is on.  Suppose we sent packet P, consider it</span></div>
-<div class="line"><a id="l02651" name="l02651"></a><span class="lineno"> 2651</span><span class="comment">     * Dropped (removing it from snd_flying_pkts*), and thus we place it on retransmission</span></div>
-<div class="line"><a id="l02652" name="l02652"></a><span class="lineno"> 2652</span><span class="comment">     * queue.  Suppose there is not enough CWND space to send it right away, so while it&#39;s pending</span></div>
-<div class="line"><a id="l02653" name="l02653"></a><span class="lineno"> 2653</span><span class="comment">     * on that queue, we now get a late ack for it.  Ideally in this case we&#39;d remember it was in</span></div>
-<div class="line"><a id="l02654" name="l02654"></a><span class="lineno"> 2654</span><span class="comment">     * retransmission queue, remove it from there, and basically act as if we hadn&#39;t removed it</span></div>
-<div class="line"><a id="l02655" name="l02655"></a><span class="lineno"> 2655</span><span class="comment">     * from snd_flying_pkts* and got the ack for it.  Instead we&#39;re just going to ignore this</span></div>
-<div class="line"><a id="l02656" name="l02656"></a><span class="lineno"> 2656</span><span class="comment">     * information and needlessly retransmit.  So why do this?  Answer: It is troublesome to</span></div>
-<div class="line"><a id="l02657" name="l02657"></a><span class="lineno"> 2657</span><span class="comment">     * design and code this.  The part where we wouldn&#39;t retransmit it is fairly straightforward</span></div>
-<div class="line"><a id="l02658" name="l02658"></a><span class="lineno"> 2658</span><span class="comment">     * and is a nice @todo.  However acting as if it was normally ACKed after all is complex; for</span></div>
-<div class="line"><a id="l02659" name="l02659"></a><span class="lineno"> 2659</span><span class="comment">     * instance, since we thought it was Dropped, we already informed m_cong_ctl of the loss event</span></div>
-<div class="line"><a id="l02660" name="l02660"></a><span class="lineno"> 2660</span><span class="comment">     * -- how can we undo that in a clean way?  It does not seem worth it.  Again, checking</span></div>
-<div class="line"><a id="l02661" name="l02661"></a><span class="lineno"> 2661</span><span class="comment">     * and updating the retransmission queue, though, is a nice @todo (but would ideally need fast</span></div>
-<div class="line"><a id="l02662" name="l02662"></a><span class="lineno"> 2662</span><span class="comment">     * lookup into that linked list so not totally trivial).</span></div>
-<div class="line"><a id="l02663" name="l02663"></a><span class="lineno"> 2663</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02664" name="l02664"></a><span class="lineno"> 2664</span><span class="comment">     * So, let&#39;s say that the concession described in the previous paragraph is OK.</span></div>
-<div class="line"><a id="l02665" name="l02665"></a><span class="lineno"> 2665</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02666" name="l02666"></a><span class="lineno"> 2666</span><span class="comment">     * Could also be invalid.  We only know seq_num (one boundary of packet), so how do we detect</span></div>
-<div class="line"><a id="l02667" name="l02667"></a><span class="lineno"> 2667</span><span class="comment">     * it&#39;s invalid?  One case where we know it&#39;s invalid is if this left boundary happens to be</span></div>
-<div class="line"><a id="l02668" name="l02668"></a><span class="lineno"> 2668</span><span class="comment">     * straddled by a sequence number range in an element of snd_flying_pkts_by_seq.  That would mean</span></div>
-<div class="line"><a id="l02669" name="l02669"></a><span class="lineno"> 2669</span><span class="comment">     * that the same sequence number is in two different packets, which is in no way legal.</span></div>
-<div class="line"><a id="l02670" name="l02670"></a><span class="lineno"> 2670</span><span class="comment">     * Example: we sent [5, 10), then received ACK with [7, ...).  7 is inside [5, 10) and is</span></div>
-<div class="line"><a id="l02671" name="l02671"></a><span class="lineno"> 2671</span><span class="comment">     * thus illegal. */</span></div>
-<div class="line"><a id="l02672" name="l02672"></a><span class="lineno"> 2672</span> </div>
-<div class="line"><a id="l02673" name="l02673"></a><span class="lineno"> 2673</span>    <span class="comment">/* Here&#39;s the technique we use.  snd_flying_pkts_by_seq.upper_bound(S) gets the first packet</span></div>
-<div class="line"><a id="l02674" name="l02674"></a><span class="lineno"> 2674</span><span class="comment">     * [U1, U2) such that U1 &gt; S.  Let prev(P) denote the packet preceding P in</span></div>
-<div class="line"><a id="l02675" name="l02675"></a><span class="lineno"> 2675</span><span class="comment">     * snd_flying_pkts_by_seq; let prev([U1, U2)) = [L1, L2).  Note that [U1, U2) may not exist</span></div>
-<div class="line"><a id="l02676" name="l02676"></a><span class="lineno"> 2676</span><span class="comment">     * -- i.e., nothing after S is in the map.  If so, [U1, U2) == snd_flying_pkts_by_seq.end().  Even</span></div>
-<div class="line"><a id="l02677" name="l02677"></a><span class="lineno"> 2677</span><span class="comment">     * in that case [L1, L2) = prev([U1, U2)) MAY still exist; it is the last element of</span></div>
-<div class="line"><a id="l02678" name="l02678"></a><span class="lineno"> 2678</span><span class="comment">     * snd_flying_pkts_by_seq in that situation.</span></div>
-<div class="line"><a id="l02679" name="l02679"></a><span class="lineno"> 2679</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02680" name="l02680"></a><span class="lineno"> 2680</span><span class="comment">     * Given that, here are all the situations that mean P is straddled by a packet:</span></div>
-<div class="line"><a id="l02681" name="l02681"></a><span class="lineno"> 2681</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02682" name="l02682"></a><span class="lineno"> 2682</span><span class="comment">     * - S inside [U1, U2) or any packet after it.</span></div>
-<div class="line"><a id="l02683" name="l02683"></a><span class="lineno"> 2683</span><span class="comment">     *   - Impossible.  U1 &gt; S by definition; so S is not inside any packet at U1 or later.</span></div>
-<div class="line"><a id="l02684" name="l02684"></a><span class="lineno"> 2684</span><span class="comment">     * - S inside [L1, L2).</span></div>
-<div class="line"><a id="l02685" name="l02685"></a><span class="lineno"> 2685</span><span class="comment">     *   - Possible.  We know S &gt; L1, since otherwise S &lt;= L1, which means we can&#39;t be inside this</span></div>
-<div class="line"><a id="l02686" name="l02686"></a><span class="lineno"> 2686</span><span class="comment">     *     if (and we are), or snd_flying_pkts_by_seq.upper_bound(S) == [L1, L2) (not true, since</span></div>
-<div class="line"><a id="l02687" name="l02687"></a><span class="lineno"> 2687</span><span class="comment">     *     snd_flying_pkts_by_seq.upper_bound(S) == [U1, U2), which != [L1, L2)).  So, since S &gt; L1,</span></div>
-<div class="line"><a id="l02688" name="l02688"></a><span class="lineno"> 2688</span><span class="comment">     *     we must check for S &lt; L2.  If true, S is straddled.</span></div>
-<div class="line"><a id="l02689" name="l02689"></a><span class="lineno"> 2689</span><span class="comment">     * - S inside some packet [K1, K2) before [L1, L2).</span></div>
-<div class="line"><a id="l02690" name="l02690"></a><span class="lineno"> 2690</span><span class="comment">     *   - Impossible.  Suppose S is inside [K1, K2) immediately preceding [L1, L2).  Then</span></div>
-<div class="line"><a id="l02691" name="l02691"></a><span class="lineno"> 2691</span><span class="comment">     *     snd_flying_pkts_by_seq.upper_bound(S) == [L1, L2).  But we already know</span></div>
-<div class="line"><a id="l02692" name="l02692"></a><span class="lineno"> 2692</span><span class="comment">     *     snd_flying_pkts_by_seq.upper_bound(S) == [U1, U2) (which != [L1, L2)).  So that&#39;s</span></div>
-<div class="line"><a id="l02693" name="l02693"></a><span class="lineno"> 2693</span><span class="comment">     *     impossible.  Repeat this logic for all packets [K1, K2) preceding [L1, L2) to show that</span></div>
-<div class="line"><a id="l02694" name="l02694"></a><span class="lineno"> 2694</span><span class="comment">     *     it can&#39;t be straddled by any of those either.</span></div>
-<div class="line"><a id="l02695" name="l02695"></a><span class="lineno"> 2695</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02696" name="l02696"></a><span class="lineno"> 2696</span><span class="comment">     * Therefore, S is straddled by a packet if and only if:</span></div>
-<div class="line"><a id="l02697" name="l02697"></a><span class="lineno"> 2697</span><span class="comment">     *   - prev(snd_flying_pkts_by_seq.upper_bound(S)) exists; call it [L1, L2); and</span></div>
-<div class="line"><a id="l02698" name="l02698"></a><span class="lineno"> 2698</span><span class="comment">     *   - S &lt; L2.</span></div>
-<div class="line"><a id="l02699" name="l02699"></a><span class="lineno"> 2699</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02700" name="l02700"></a><span class="lineno"> 2700</span><span class="comment">     * This can be further restated as:</span></div>
-<div class="line"><a id="l02701" name="l02701"></a><span class="lineno"> 2701</span><span class="comment">     *   - snd_flying_pkts_by_seq.upper_bound(S) != snd_flying_pkts_by_seq.begin(); and</span></div>
-<div class="line"><a id="l02702" name="l02702"></a><span class="lineno"> 2702</span><span class="comment">     *   - (letting [L1, L2) = prev(snd_flying_pkts_by_seq.upper_bound(S)))</span></div>
-<div class="line"><a id="l02703" name="l02703"></a><span class="lineno"> 2703</span><span class="comment">     *     S &lt; L2.</span></div>
-<div class="line"><a id="l02704" name="l02704"></a><span class="lineno"> 2704</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02705" name="l02705"></a><span class="lineno"> 2705</span><span class="comment">     * So check for that. */</span></div>
-<div class="line"><a id="l02706" name="l02706"></a><span class="lineno"> 2706</span> </div>
-<div class="line"><a id="l02707" name="l02707"></a><span class="lineno"> 2707</span>    <span class="comment">// Find U.</span></div>
-<div class="line"><a id="l02708" name="l02708"></a><span class="lineno"> 2708</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#abd6f3174914c3ec559954b4125f2f9dd">Peer_socket::Sent_pkt_ordered_by_seq_const_iter</a> pkt_it = snd_flying_pkts_by_seq.upper_bound(seq_num);</div>
-<div class="line"><a id="l02709" name="l02709"></a><span class="lineno"> 2709</span>    <span class="comment">// Check that prev(U) exists.</span></div>
-<div class="line"><a id="l02710" name="l02710"></a><span class="lineno"> 2710</span>    <span class="keywordflow">if</span> (pkt_it != snd_flying_pkts_by_seq.begin())</div>
-<div class="line"><a id="l02711" name="l02711"></a><span class="lineno"> 2711</span>    {</div>
-<div class="line"><a id="l02712" name="l02712"></a><span class="lineno"> 2712</span>      <span class="comment">// prev(U) = L exists.  Compute L.</span></div>
-<div class="line"><a id="l02713" name="l02713"></a><span class="lineno"> 2713</span>      --pkt_it;</div>
-<div class="line"><a id="l02714" name="l02714"></a><span class="lineno"> 2714</span>      <span class="comment">// Compute [L1, L2), and check for straddling: S &lt; L2.  pkt_it-&gt;second points into snd_flying_pkts_by_when.</span></div>
-<div class="line"><a id="l02715" name="l02715"></a><span class="lineno"> 2715</span>      <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> l1, l2;</div>
-<div class="line"><a id="l02716" name="l02716"></a><span class="lineno"> 2716</span>      get_seq_num_range(pkt_it-&gt;second, &amp;l1, &amp;l2);</div>
-<div class="line"><a id="l02717" name="l02717"></a><span class="lineno"> 2717</span> </div>
-<div class="line"><a id="l02718" name="l02718"></a><span class="lineno"> 2718</span>      assert(l1 &lt; seq_num); <span class="comment">// Sanity-check of upper_bound().</span></div>
-<div class="line"><a id="l02719" name="l02719"></a><span class="lineno"> 2719</span>      <span class="keywordflow">if</span> (seq_num &lt; l2)</div>
-<div class="line"><a id="l02720" name="l02720"></a><span class="lineno"> 2720</span>      {</div>
-<div class="line"><a id="l02721" name="l02721"></a><span class="lineno"> 2721</span>        <span class="comment">// Straddles.  Other side is sending us bad stuff.  As above, warn and RST/close.</span></div>
-<div class="line"><a id="l02722" name="l02722"></a><span class="lineno"> 2722</span> </div>
-<div class="line"><a id="l02723" name="l02723"></a><span class="lineno"> 2723</span>        <span class="comment">// Register one individual acknowledgment of unknown # of bytes of data (not acceptable due to error).</span></div>
-<div class="line"><a id="l02724" name="l02724"></a><span class="lineno"> 2724</span>        snd_stats.error_ack();</div>
-<div class="line"><a id="l02725" name="l02725"></a><span class="lineno"> 2725</span> </div>
-<div class="line"><a id="l02726" name="l02726"></a><span class="lineno"> 2726</span>        <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
-<div class="line"><a id="l02727" name="l02727"></a><span class="lineno"> 2727</span>                         <span class="stringliteral">&quot;Received [ACK]; &quot;</span></div>
-<div class="line"><a id="l02728" name="l02728"></a><span class="lineno"> 2728</span>                         <span class="stringliteral">&quot;acknowledgment [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) is at least partially inside &quot;</span></div>
-<div class="line"><a id="l02729" name="l02729"></a><span class="lineno"> 2729</span>                         <span class="stringliteral">&quot;packet [&quot;</span> &lt;&lt; l1 &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; l2 &lt;&lt; <span class="stringliteral">&quot;).&quot;</span>);</div>
-<div class="line"><a id="l02730" name="l02730"></a><span class="lineno"> 2730</span>        rst_and_close_connection_immediately(socket_id, sock, <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a8ad7147a3e4e63313c7a5954790cd458">error::Code::S_SEQ_NUM_ARITHMETIC_FAILURE</a>, <span class="keyword">true</span>);</div>
-<div class="line"><a id="l02731" name="l02731"></a><span class="lineno"> 2731</span>        <span class="comment">/* ^-- defer_delta_check == true: because the only way to get to this method is from</span></div>
-<div class="line"><a id="l02732" name="l02732"></a><span class="lineno"> 2732</span><span class="comment">         * async_low_lvl_recv(), which will perform event_set_all_check_delta(false) at the end of itself,</span></div>
-<div class="line"><a id="l02733" name="l02733"></a><span class="lineno"> 2733</span><span class="comment">         * before the boost.asio handler exits.  See Node::m_sock_events doc header for details. */</span></div>
-<div class="line"><a id="l02734" name="l02734"></a><span class="lineno"> 2734</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Other out-params are meaningless.</span></div>
-<div class="line"><a id="l02735" name="l02735"></a><span class="lineno"> 2735</span>      }</div>
-<div class="line"><a id="l02736" name="l02736"></a><span class="lineno"> 2736</span>      <span class="comment">// else if (seq_num &gt;= l2) { It&#39;s past [L1, L2); does not straddle. }</span></div>
-<div class="line"><a id="l02737" name="l02737"></a><span class="lineno"> 2737</span>    }</div>
-<div class="line"><a id="l02738" name="l02738"></a><span class="lineno"> 2738</span>    <span class="comment">// else { Legit because there is no packet L that could possibly straddle seq_num. }</span></div>
-<div class="line"><a id="l02739" name="l02739"></a><span class="lineno"> 2739</span> </div>
-<div class="line"><a id="l02740" name="l02740"></a><span class="lineno"> 2740</span>    <span class="comment">/* OK, so NOW do we know it&#39;s a duplicate/late acknowledgment?  Well, no.  Suppose we sent packet</span></div>
-<div class="line"><a id="l02741" name="l02741"></a><span class="lineno"> 2741</span><span class="comment">     * [5, 10) and get ACK with [5, ...).  That&#39;s fine.  So we erase [5, 10) from</span></div>
-<div class="line"><a id="l02742" name="l02742"></a><span class="lineno"> 2742</span><span class="comment">     * snd_flying_pkts_by_seq.  Now say we get ACK with [7, ...).  Well, that&#39;s in the</span></div>
-<div class="line"><a id="l02743" name="l02743"></a><span class="lineno"> 2743</span><span class="comment">     * [m_snd_next_seq_num, m_snd_next_seq_num) range certainly; and it doesn&#39;t get straddled by</span></div>
-<div class="line"><a id="l02744" name="l02744"></a><span class="lineno"> 2744</span><span class="comment">     * any member of snd_flying_pkts_by_seq.  Yet it&#39;s certainly invalid: we never sent (and could&#39;ve</span></div>
-<div class="line"><a id="l02745" name="l02745"></a><span class="lineno"> 2745</span><span class="comment">     * never sent) [7, ...).  We can&#39;t know that, however, since [5, 10) is gone from</span></div>
-<div class="line"><a id="l02746" name="l02746"></a><span class="lineno"> 2746</span><span class="comment">     * snd_flying_pkts_by_seq.  Is this OK?  More or less, yes.  What do we do with a duplicate/late</span></div>
-<div class="line"><a id="l02747" name="l02747"></a><span class="lineno"> 2747</span><span class="comment">     * acknowledgment just below?  We log and ignore it.  That doesn&#39;t seem harmful.  NORMALLY</span></div>
-<div class="line"><a id="l02748" name="l02748"></a><span class="lineno"> 2748</span><span class="comment">     * when something is invalid we&#39;d RST and close connection, but here we can&#39;t know we should</span></div>
-<div class="line"><a id="l02749" name="l02749"></a><span class="lineno"> 2749</span><span class="comment">     * do that; however ignoring it still seems fine and better than doggedly inventing data</span></div>
-<div class="line"><a id="l02750" name="l02750"></a><span class="lineno"> 2750</span><span class="comment">     * structures to detect this corner case.</span></div>
-<div class="line"><a id="l02751" name="l02751"></a><span class="lineno"> 2751</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02752" name="l02752"></a><span class="lineno"> 2752</span><span class="comment">     * What about m_snd_cong_ctl?  Should we report this in m_snd_cong_ctl-&gt;on_acks()?</span></div>
-<div class="line"><a id="l02753" name="l02753"></a><span class="lineno"> 2753</span><span class="comment">     * No.  on_acks() specifically documents that it wants info on</span></div>
-<div class="line"><a id="l02754" name="l02754"></a><span class="lineno"> 2754</span><span class="comment">     * In-flight-&gt;Acknowledged acknowledgments, not duplicates.  (Briefly,</span></div>
-<div class="line"><a id="l02755" name="l02755"></a><span class="lineno"> 2755</span><span class="comment">     * that&#39;s because it&#39;s measuring sent data in the pipe; acknowledgment duplication has unclear</span></div>
-<div class="line"><a id="l02756" name="l02756"></a><span class="lineno"> 2756</span><span class="comment">     * implications about what it&#39;s acknowledging; it is unlikely that it represents more pipe</span></div>
-<div class="line"><a id="l02757" name="l02757"></a><span class="lineno"> 2757</span><span class="comment">     * being available than if only one acknolwedgment had been received.  In any case this should</span></div>
-<div class="line"><a id="l02758" name="l02758"></a><span class="lineno"> 2758</span><span class="comment">     * hopefully be pretty rare and thus not too significant either way.)</span></div>
-<div class="line"><a id="l02759" name="l02759"></a><span class="lineno"> 2759</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02760" name="l02760"></a><span class="lineno"> 2760</span><span class="comment">     * Same reasoning for not counting it in m_snd_bandwidth_estimator-&gt;on_acks(). */</span></div>
-<div class="line"><a id="l02761" name="l02761"></a><span class="lineno"> 2761</span> </div>
-<div class="line"><a id="l02762" name="l02762"></a><span class="lineno"> 2762</span>    <span class="comment">// Per above discussion, ignore duplicate (or maybe invalid, but we can&#39;t know/assume that) acknowledgment.</span></div>
-<div class="line"><a id="l02763" name="l02763"></a><span class="lineno"> 2763</span> </div>
-<div class="line"><a id="l02764" name="l02764"></a><span class="lineno"> 2764</span>    <span class="comment">// Register one individual acknowledgment of unknown # of bytes of data (late, dupe, or maybe invalid).</span></div>
-<div class="line"><a id="l02765" name="l02765"></a><span class="lineno"> 2765</span>    snd_stats.late_or_dupe_ack();</div>
-<div class="line"><a id="l02766" name="l02766"></a><span class="lineno"> 2766</span> </div>
-<div class="line"><a id="l02767" name="l02767"></a><span class="lineno"> 2767</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
-<div class="line"><a id="l02768" name="l02768"></a><span class="lineno"> 2768</span>                  <span class="stringliteral">&quot;Acknowledged packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) is duplicate or late (or invalid).  &quot;</span></div>
-<div class="line"><a id="l02769" name="l02769"></a><span class="lineno"> 2769</span>                  <span class="stringliteral">&quot;RTT unknown.  Ignoring.&quot;</span>);</div>
-<div class="line"><a id="l02770" name="l02770"></a><span class="lineno"> 2770</span> </div>
-<div class="line"><a id="l02771" name="l02771"></a><span class="lineno"> 2771</span>    <span class="comment">// Ensure out-params indicating a dupe/late ack such that the packet being acked is not known.</span></div>
-<div class="line"><a id="l02772" name="l02772"></a><span class="lineno"> 2772</span>    *dupe_or_late = <span class="keyword">true</span>;</div>
-<div class="line"><a id="l02773" name="l02773"></a><span class="lineno"> 2773</span>    assert(*acked_pkt_it == snd_flying_pkts_by_when.past_oldest()); <span class="comment">// A/k/a end().</span></div>
-<div class="line"><a id="l02774" name="l02774"></a><span class="lineno"> 2774</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
-<div class="line"><a id="l02775" name="l02775"></a><span class="lineno"> 2775</span>  } <span class="comment">// if (seq_num is not in snd_flying_pkts*) // i.e., duplicate/late acknowledgment with unknown acked packet.</span></div>
-<div class="line"><a id="l02776" name="l02776"></a><span class="lineno"> 2776</span>  <span class="comment">// else if (seq_num IS in snd_flying_pkts*): *acked_pkt_it points to snd_flying_pkts_by_when[seq_num].</span></div>
-<div class="line"><a id="l02777" name="l02777"></a><span class="lineno"> 2777</span>  assert(*acked_pkt_it != snd_flying_pkts_by_when.past_oldest());</div>
-<div class="line"><a id="l02778" name="l02778"></a><span class="lineno"> 2778</span> </div>
-<div class="line"><a id="l02779" name="l02779"></a><span class="lineno"> 2779</span>  <span class="comment">// It&#39;s an ack of sequence number we&#39;d sent, but if retransmission is on it may not be of the one we LAST sent.</span></div>
-<div class="line"><a id="l02780" name="l02780"></a><span class="lineno"> 2780</span> </div>
-<div class="line"><a id="l02781" name="l02781"></a><span class="lineno"> 2781</span>  <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">Peer_socket::Sent_packet</a>&amp; acked_pkt = *((*acked_pkt_it)-&gt;second);</div>
-<div class="line"><a id="l02782" name="l02782"></a><span class="lineno"> 2782</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> acked_rexmit_id = <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> ? acked_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf">m_packet</a>-&gt;m_rexmit_id : 0;</div>
-<div class="line"><a id="l02783" name="l02783"></a><span class="lineno"> 2783</span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> seq_num_end; <span class="comment">// Get sequence number just past last datum in packet.</span></div>
-<div class="line"><a id="l02784" name="l02784"></a><span class="lineno"> 2784</span>  get_seq_num_range(*acked_pkt_it, 0, &amp;seq_num_end);</div>
-<div class="line"><a id="l02785" name="l02785"></a><span class="lineno"> 2785</span> </div>
-<div class="line"><a id="l02786" name="l02786"></a><span class="lineno"> 2786</span>  <span class="comment">// Note that both rexmit_id and acked_rexmit_id are guaranteed 0 at this point if !rexmit_on.</span></div>
-<div class="line"><a id="l02787" name="l02787"></a><span class="lineno"> 2787</span> </div>
-<div class="line"><a id="l02788" name="l02788"></a><span class="lineno"> 2788</span>  <span class="keywordflow">if</span> (rexmit_id &gt; acked_rexmit_id)</div>
-<div class="line"><a id="l02789" name="l02789"></a><span class="lineno"> 2789</span>  {</div>
-<div class="line"><a id="l02790" name="l02790"></a><span class="lineno"> 2790</span>    <span class="comment">// This is entirely illegal.  Can&#39;t acknowledge a packet copy we hadn&#39;t sent yet.</span></div>
-<div class="line"><a id="l02791" name="l02791"></a><span class="lineno"> 2791</span>    <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
-<div class="line"><a id="l02792" name="l02792"></a><span class="lineno"> 2792</span>                     <span class="stringliteral">&quot;Acknowledged packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l02793" name="l02793"></a><span class="lineno"> 2793</span>                     <span class="stringliteral">&quot;rexmit_id [&quot;</span> &lt;&lt; <span class="keywordtype">int</span>(rexmit_id) &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l02794" name="l02794"></a><span class="lineno"> 2794</span>                     <span class="stringliteral">&quot;exceeds highest sent rexmit_id [&quot;</span> &lt;&lt; <span class="keywordtype">int</span>(acked_rexmit_id) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l02795" name="l02795"></a><span class="lineno"> 2795</span>    rst_and_close_connection_immediately(socket_id, sock, <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a8ad7147a3e4e63313c7a5954790cd458">error::Code::S_SEQ_NUM_ARITHMETIC_FAILURE</a>, <span class="keyword">true</span>);</div>
-<div class="line"><a id="l02796" name="l02796"></a><span class="lineno"> 2796</span>    <span class="comment">/* ^-- defer_delta_check == true: because the only way to get to this method is from</span></div>
-<div class="line"><a id="l02797" name="l02797"></a><span class="lineno"> 2797</span><span class="comment">     * async_low_lvl_recv(), which will perform event_set_all_check_delta(false) at the end of itself,</span></div>
-<div class="line"><a id="l02798" name="l02798"></a><span class="lineno"> 2798</span><span class="comment">     * before the boost.asio handler exits.  See Node::m_sock_events doc header for details. */</span></div>
-<div class="line"><a id="l02799" name="l02799"></a><span class="lineno"> 2799</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Other out-params are meaningless.</span></div>
-<div class="line"><a id="l02800" name="l02800"></a><span class="lineno"> 2800</span>  }</div>
-<div class="line"><a id="l02801" name="l02801"></a><span class="lineno"> 2801</span>  <span class="comment">// else if (rexmit_id &lt;= acked_rexmit_id)</span></div>
-<div class="line"><a id="l02802" name="l02802"></a><span class="lineno"> 2802</span> </div>
-<div class="line"><a id="l02803" name="l02803"></a><span class="lineno"> 2803</span>  <span class="keywordflow">if</span> (rexmit_id != acked_rexmit_id)</div>
-<div class="line"><a id="l02804" name="l02804"></a><span class="lineno"> 2804</span>  {</div>
-<div class="line"><a id="l02805" name="l02805"></a><span class="lineno"> 2805</span>    assert(rexmit_id &lt; acked_rexmit_id);</div>
-<div class="line"><a id="l02806" name="l02806"></a><span class="lineno"> 2806</span> </div>
-<div class="line"><a id="l02807" name="l02807"></a><span class="lineno"> 2807</span>    <span class="comment">/* This is legal: it&#39;s possible we had sent packet P, considered it Dropped, retransmitted it</span></div>
-<div class="line"><a id="l02808" name="l02808"></a><span class="lineno"> 2808</span><span class="comment">     * (thus incrementing rexmit_id), and have now received a late acknowledgment of the</span></div>
-<div class="line"><a id="l02809" name="l02809"></a><span class="lineno"> 2809</span><span class="comment">     * PREVIOUS attempt to send P (before retransmission).  We could actually consider this</span></div>
-<div class="line"><a id="l02810" name="l02810"></a><span class="lineno"> 2810</span><span class="comment">     * entirely equivalent to simply getting the last attempt acked.  In fact I specifically kept</span></div>
-<div class="line"><a id="l02811" name="l02811"></a><span class="lineno"> 2811</span><span class="comment">     * an array for m_sent_when, so that we can even compute accurate RTT.  Yet, at least for now,</span></div>
-<div class="line"><a id="l02812" name="l02812"></a><span class="lineno"> 2812</span><span class="comment">     * I am going to ignore such an acknowledgment.  Reasons:</span></div>
-<div class="line"><a id="l02813" name="l02813"></a><span class="lineno"> 2813</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02814" name="l02814"></a><span class="lineno"> 2814</span><span class="comment">     *   - The RTT may be an outlier affected by some random event; we considered it Dropped, so</span></div>
-<div class="line"><a id="l02815" name="l02815"></a><span class="lineno"> 2815</span><span class="comment">     *     if those heuristics are generally sound, getting a late ack is suspicious.</span></div>
-<div class="line"><a id="l02816" name="l02816"></a><span class="lineno"> 2816</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02817" name="l02817"></a><span class="lineno"> 2817</span><span class="comment">     *   - Suppose I do take the RTT and report to congestion control, use for SRTT computation,</span></div>
-<div class="line"><a id="l02818" name="l02818"></a><span class="lineno"> 2818</span><span class="comment">     *     and remove from snd_flying_pkts*.  I&#39;ve in effect recorded a loss but then also</span></div>
-<div class="line"><a id="l02819" name="l02819"></a><span class="lineno"> 2819</span><span class="comment">     *     reported a successful retransmission, even though the ack is not for the retransmission</span></div>
-<div class="line"><a id="l02820" name="l02820"></a><span class="lineno"> 2820</span><span class="comment">     *     but more like a correction on the original loss.  That&#39;s potentially fine, but chances</span></div>
-<div class="line"><a id="l02821" name="l02821"></a><span class="lineno"> 2821</span><span class="comment">     *     are I will soon receive the ack for the latest transmission, which is what I was really</span></div>
-<div class="line"><a id="l02822" name="l02822"></a><span class="lineno"> 2822</span><span class="comment">     *     expecting.  That one will now be considered a late ack and will be ignored, even though</span></div>
-<div class="line"><a id="l02823" name="l02823"></a><span class="lineno"> 2823</span><span class="comment">     *     that RTT is actually probably more accurate, since chances are it arrived before the</span></div>
-<div class="line"><a id="l02824" name="l02824"></a><span class="lineno"> 2824</span><span class="comment">     *     retransmission would&#39;ve been considered Dropped as well.  So, basically, we&#39;re kind of</span></div>
-<div class="line"><a id="l02825" name="l02825"></a><span class="lineno"> 2825</span><span class="comment">     *     trying to use the &quot;two wrongs make a right&quot; philosophy, which seems messy.</span></div>
-<div class="line"><a id="l02826" name="l02826"></a><span class="lineno"> 2826</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02827" name="l02827"></a><span class="lineno"> 2827</span><span class="comment">     *   - Earlier in the method, I mentioned that if we detect P as dropped and queue it for</span></div>
-<div class="line"><a id="l02828" name="l02828"></a><span class="lineno"> 2828</span><span class="comment">     *     retransmission but get P acked *before* we get a chance to retransmit, then we consider</span></div>
-<div class="line"><a id="l02829" name="l02829"></a><span class="lineno"> 2829</span><span class="comment">     *     that ack as late and ignore it (and will still retransmit P).  The reasons for that are</span></div>
-<div class="line"><a id="l02830" name="l02830"></a><span class="lineno"> 2830</span><span class="comment">     *     given in that comment.  However, given that we made that decision, it would seem</span></div>
-<div class="line"><a id="l02831" name="l02831"></a><span class="lineno"> 2831</span><span class="comment">     *     strange to follow a different philosophy just because we did happen to get to</span></div>
-<div class="line"><a id="l02832" name="l02832"></a><span class="lineno"> 2832</span><span class="comment">     *     retransmit P.  That would be inconsistent.</span></div>
-<div class="line"><a id="l02833" name="l02833"></a><span class="lineno"> 2833</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02834" name="l02834"></a><span class="lineno"> 2834</span><span class="comment">     *   - Keeping it in perspective, it should be fairly rare that a packet we considered Dropped</span></div>
-<div class="line"><a id="l02835" name="l02835"></a><span class="lineno"> 2835</span><span class="comment">     *     is acked after all.  So it is perhaps not worth the trouble to go crazy about this</span></div>
-<div class="line"><a id="l02836" name="l02836"></a><span class="lineno"> 2836</span><span class="comment">     *     corner case.</span></div>
-<div class="line"><a id="l02837" name="l02837"></a><span class="lineno"> 2837</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02838" name="l02838"></a><span class="lineno"> 2838</span><span class="comment">     * Nevertheless, a @todo would be to experimentally measure the effect of this policy and</span></div>
-<div class="line"><a id="l02839" name="l02839"></a><span class="lineno"> 2839</span><span class="comment">     * decide whether it is sound.  In that case also consider the aforementioned &quot;P is acked</span></div>
-<div class="line"><a id="l02840" name="l02840"></a><span class="lineno"> 2840</span><span class="comment">     * after queued for retransmission but before retransmitted&quot; corner case. */</span></div>
-<div class="line"><a id="l02841" name="l02841"></a><span class="lineno"> 2841</span> </div>
-<div class="line"><a id="l02842" name="l02842"></a><span class="lineno"> 2842</span>    <span class="comment">// Register one individual acknowledgment of unknown # of bytes of data (late).</span></div>
-<div class="line"><a id="l02843" name="l02843"></a><span class="lineno"> 2843</span>    snd_stats.late_or_dupe_ack();</div>
-<div class="line"><a id="l02844" name="l02844"></a><span class="lineno"> 2844</span> </div>
-<div class="line"><a id="l02845" name="l02845"></a><span class="lineno"> 2845</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
-<div class="line"><a id="l02846" name="l02846"></a><span class="lineno"> 2846</span>                  <span class="stringliteral">&quot;Acknowledged packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l02847" name="l02847"></a><span class="lineno"> 2847</span>                  <span class="stringliteral">&quot;order_num [&quot;</span> &lt;&lt; acked_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">m_sent_when</a>[rexmit_id].m_order_num &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l02848" name="l02848"></a><span class="lineno"> 2848</span>                  <span class="stringliteral">&quot;rexmit_id [&quot;</span> &lt;&lt; <span class="keywordtype">int</span>(rexmit_id) &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l02849" name="l02849"></a><span class="lineno"> 2849</span>                  <span class="stringliteral">&quot;is less than highest sent [&quot;</span> &lt;&lt; <span class="keywordtype">int</span>(acked_rexmit_id) &lt;&lt; <span class="stringliteral">&quot;].  Ignoring.&quot;</span>);</div>
+<div class="line"><a id="l02625" name="l02625"></a><span class="lineno"> 2625</span>    <span class="comment">// Interesting/rare enough to log a WARNING.</span></div>
+<div class="line"><a id="l02626" name="l02626"></a><span class="lineno"> 2626</span>    <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
+<div class="line"><a id="l02627" name="l02627"></a><span class="lineno"> 2627</span>                     <span class="stringliteral">&quot;Received [ACK]; &quot;</span></div>
+<div class="line"><a id="l02628" name="l02628"></a><span class="lineno"> 2628</span>                     <span class="stringliteral">&quot;acknowledgment [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) is outside (ISN, snd_next) &quot;</span></div>
+<div class="line"><a id="l02629" name="l02629"></a><span class="lineno"> 2629</span>                     <span class="stringliteral">&quot;range (&quot;</span> &lt;&lt; sock-&gt;m_snd_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; sock-&gt;m_snd_next_seq_num &lt;&lt; <span class="stringliteral">&quot;).&quot;</span>);</div>
+<div class="line"><a id="l02630" name="l02630"></a><span class="lineno"> 2630</span> </div>
+<div class="line"><a id="l02631" name="l02631"></a><span class="lineno"> 2631</span>    <span class="comment">// Register one individual acknowledgment of unknown # of bytes of data (not acceptable due to error).</span></div>
+<div class="line"><a id="l02632" name="l02632"></a><span class="lineno"> 2632</span>    snd_stats.error_ack();</div>
+<div class="line"><a id="l02633" name="l02633"></a><span class="lineno"> 2633</span> </div>
+<div class="line"><a id="l02634" name="l02634"></a><span class="lineno"> 2634</span>    <span class="comment">/* Close connection in our structures (inform user if necessary as well).  Pre-conditions</span></div>
+<div class="line"><a id="l02635" name="l02635"></a><span class="lineno"> 2635</span><span class="comment">     * assumed by call: sock in m_socks and sock-&gt;state() == S_OPEN (yes, since m_int_state ==</span></div>
+<div class="line"><a id="l02636" name="l02636"></a><span class="lineno"> 2636</span><span class="comment">     * S_ESTABLISHED); 3rd arg contains the reason for the close (yes).  This will empty the Send</span></div>
+<div class="line"><a id="l02637" name="l02637"></a><span class="lineno"> 2637</span><span class="comment">     * and Receive buffers.  That is OK, because this is the abrupt type of close (error). */</span></div>
+<div class="line"><a id="l02638" name="l02638"></a><span class="lineno"> 2638</span>    rst_and_close_connection_immediately(socket_id, sock,</div>
+<div class="line"><a id="l02639" name="l02639"></a><span class="lineno"> 2639</span>                                         <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a891201a96c5838bbb24cc9ed08b47765">error::Code::S_SEQ_NUM_IMPLIES_CONNECTION_COLLISION</a>, <span class="keyword">true</span>);</div>
+<div class="line"><a id="l02640" name="l02640"></a><span class="lineno"> 2640</span>    <span class="comment">/* ^-- defer_delta_check == true: because the only way to get to this method is from</span></div>
+<div class="line"><a id="l02641" name="l02641"></a><span class="lineno"> 2641</span><span class="comment">     * async_low_lvl_recv(), which will perform event_set_all_check_delta(false) at the end of itself,</span></div>
+<div class="line"><a id="l02642" name="l02642"></a><span class="lineno"> 2642</span><span class="comment">     * before the boost.asio handler exits.  See Node::m_sock_events doc header for details. */</span></div>
+<div class="line"><a id="l02643" name="l02643"></a><span class="lineno"> 2643</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Other out-params are meaningless.</span></div>
+<div class="line"><a id="l02644" name="l02644"></a><span class="lineno"> 2644</span>  }</div>
+<div class="line"><a id="l02645" name="l02645"></a><span class="lineno"> 2645</span>  <span class="comment">// else within sane range.</span></div>
+<div class="line"><a id="l02646" name="l02646"></a><span class="lineno"> 2646</span> </div>
+<div class="line"><a id="l02647" name="l02647"></a><span class="lineno"> 2647</span>  <span class="comment">// Check if the sequence number matches that of one of the packets we&#39;ve sent and want acnowledged.</span></div>
+<div class="line"><a id="l02648" name="l02648"></a><span class="lineno"> 2648</span>  *acked_pkt_it = snd_flying_pkts_by_when.find(seq_num);</div>
+<div class="line"><a id="l02649" name="l02649"></a><span class="lineno"> 2649</span>  <span class="keywordflow">if</span> (*acked_pkt_it == snd_flying_pkts_by_when.past_oldest()) <span class="comment">// A/k/a end().</span></div>
+<div class="line"><a id="l02650" name="l02650"></a><span class="lineno"> 2650</span>  {</div>
+<div class="line"><a id="l02651" name="l02651"></a><span class="lineno"> 2651</span>    <span class="comment">/* No such packet.  Assuming no foul play/dumbassery, it&#39;s probably a duplicate acknowledgment</span></div>
+<div class="line"><a id="l02652" name="l02652"></a><span class="lineno"> 2652</span><span class="comment">     * (i.e., we&#39;ve already sent and got the ack, removing that packet from snd_flying_pkts*)</span></div>
+<div class="line"><a id="l02653" name="l02653"></a><span class="lineno"> 2653</span><span class="comment">     * or a late acknowledgment (i.e., we&#39;ve already sent and eventually considered Dropped the</span></div>
+<div class="line"><a id="l02654" name="l02654"></a><span class="lineno"> 2654</span><span class="comment">     * the packet, removing it from snd_flying_pkts*).</span></div>
+<div class="line"><a id="l02655" name="l02655"></a><span class="lineno"> 2655</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02656" name="l02656"></a><span class="lineno"> 2656</span><span class="comment">     * There is a corner case if retransmission is on.  Suppose we sent packet P, consider it</span></div>
+<div class="line"><a id="l02657" name="l02657"></a><span class="lineno"> 2657</span><span class="comment">     * Dropped (removing it from snd_flying_pkts*), and thus we place it on retransmission</span></div>
+<div class="line"><a id="l02658" name="l02658"></a><span class="lineno"> 2658</span><span class="comment">     * queue.  Suppose there is not enough CWND space to send it right away, so while it&#39;s pending</span></div>
+<div class="line"><a id="l02659" name="l02659"></a><span class="lineno"> 2659</span><span class="comment">     * on that queue, we now get a late ack for it.  Ideally in this case we&#39;d remember it was in</span></div>
+<div class="line"><a id="l02660" name="l02660"></a><span class="lineno"> 2660</span><span class="comment">     * retransmission queue, remove it from there, and basically act as if we hadn&#39;t removed it</span></div>
+<div class="line"><a id="l02661" name="l02661"></a><span class="lineno"> 2661</span><span class="comment">     * from snd_flying_pkts* and got the ack for it.  Instead we&#39;re just going to ignore this</span></div>
+<div class="line"><a id="l02662" name="l02662"></a><span class="lineno"> 2662</span><span class="comment">     * information and needlessly retransmit.  So why do this?  Answer: It is troublesome to</span></div>
+<div class="line"><a id="l02663" name="l02663"></a><span class="lineno"> 2663</span><span class="comment">     * design and code this.  The part where we wouldn&#39;t retransmit it is fairly straightforward</span></div>
+<div class="line"><a id="l02664" name="l02664"></a><span class="lineno"> 2664</span><span class="comment">     * and is a nice @todo.  However acting as if it was normally ACKed after all is complex; for</span></div>
+<div class="line"><a id="l02665" name="l02665"></a><span class="lineno"> 2665</span><span class="comment">     * instance, since we thought it was Dropped, we already informed m_cong_ctl of the loss event</span></div>
+<div class="line"><a id="l02666" name="l02666"></a><span class="lineno"> 2666</span><span class="comment">     * -- how can we undo that in a clean way?  It does not seem worth it.  Again, checking</span></div>
+<div class="line"><a id="l02667" name="l02667"></a><span class="lineno"> 2667</span><span class="comment">     * and updating the retransmission queue, though, is a nice @todo (but would ideally need fast</span></div>
+<div class="line"><a id="l02668" name="l02668"></a><span class="lineno"> 2668</span><span class="comment">     * lookup into that linked list so not totally trivial).</span></div>
+<div class="line"><a id="l02669" name="l02669"></a><span class="lineno"> 2669</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02670" name="l02670"></a><span class="lineno"> 2670</span><span class="comment">     * So, let&#39;s say that the concession described in the previous paragraph is OK.</span></div>
+<div class="line"><a id="l02671" name="l02671"></a><span class="lineno"> 2671</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02672" name="l02672"></a><span class="lineno"> 2672</span><span class="comment">     * Could also be invalid.  We only know seq_num (one boundary of packet), so how do we detect</span></div>
+<div class="line"><a id="l02673" name="l02673"></a><span class="lineno"> 2673</span><span class="comment">     * it&#39;s invalid?  One case where we know it&#39;s invalid is if this left boundary happens to be</span></div>
+<div class="line"><a id="l02674" name="l02674"></a><span class="lineno"> 2674</span><span class="comment">     * straddled by a sequence number range in an element of snd_flying_pkts_by_seq.  That would mean</span></div>
+<div class="line"><a id="l02675" name="l02675"></a><span class="lineno"> 2675</span><span class="comment">     * that the same sequence number is in two different packets, which is in no way legal.</span></div>
+<div class="line"><a id="l02676" name="l02676"></a><span class="lineno"> 2676</span><span class="comment">     * Example: we sent [5, 10), then received ACK with [7, ...).  7 is inside [5, 10) and is</span></div>
+<div class="line"><a id="l02677" name="l02677"></a><span class="lineno"> 2677</span><span class="comment">     * thus illegal. */</span></div>
+<div class="line"><a id="l02678" name="l02678"></a><span class="lineno"> 2678</span> </div>
+<div class="line"><a id="l02679" name="l02679"></a><span class="lineno"> 2679</span>    <span class="comment">/* Here&#39;s the technique we use.  snd_flying_pkts_by_seq.upper_bound(S) gets the first packet</span></div>
+<div class="line"><a id="l02680" name="l02680"></a><span class="lineno"> 2680</span><span class="comment">     * [U1, U2) such that U1 &gt; S.  Let prev(P) denote the packet preceding P in</span></div>
+<div class="line"><a id="l02681" name="l02681"></a><span class="lineno"> 2681</span><span class="comment">     * snd_flying_pkts_by_seq; let prev([U1, U2)) = [L1, L2).  Note that [U1, U2) may not exist</span></div>
+<div class="line"><a id="l02682" name="l02682"></a><span class="lineno"> 2682</span><span class="comment">     * -- i.e., nothing after S is in the map.  If so, [U1, U2) == snd_flying_pkts_by_seq.end().  Even</span></div>
+<div class="line"><a id="l02683" name="l02683"></a><span class="lineno"> 2683</span><span class="comment">     * in that case [L1, L2) = prev([U1, U2)) MAY still exist; it is the last element of</span></div>
+<div class="line"><a id="l02684" name="l02684"></a><span class="lineno"> 2684</span><span class="comment">     * snd_flying_pkts_by_seq in that situation.</span></div>
+<div class="line"><a id="l02685" name="l02685"></a><span class="lineno"> 2685</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02686" name="l02686"></a><span class="lineno"> 2686</span><span class="comment">     * Given that, here are all the situations that mean P is straddled by a packet:</span></div>
+<div class="line"><a id="l02687" name="l02687"></a><span class="lineno"> 2687</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02688" name="l02688"></a><span class="lineno"> 2688</span><span class="comment">     * - S inside [U1, U2) or any packet after it.</span></div>
+<div class="line"><a id="l02689" name="l02689"></a><span class="lineno"> 2689</span><span class="comment">     *   - Impossible.  U1 &gt; S by definition; so S is not inside any packet at U1 or later.</span></div>
+<div class="line"><a id="l02690" name="l02690"></a><span class="lineno"> 2690</span><span class="comment">     * - S inside [L1, L2).</span></div>
+<div class="line"><a id="l02691" name="l02691"></a><span class="lineno"> 2691</span><span class="comment">     *   - Possible.  We know S &gt; L1, since otherwise S &lt;= L1, which means we can&#39;t be inside this</span></div>
+<div class="line"><a id="l02692" name="l02692"></a><span class="lineno"> 2692</span><span class="comment">     *     if (and we are), or snd_flying_pkts_by_seq.upper_bound(S) == [L1, L2) (not true, since</span></div>
+<div class="line"><a id="l02693" name="l02693"></a><span class="lineno"> 2693</span><span class="comment">     *     snd_flying_pkts_by_seq.upper_bound(S) == [U1, U2), which != [L1, L2)).  So, since S &gt; L1,</span></div>
+<div class="line"><a id="l02694" name="l02694"></a><span class="lineno"> 2694</span><span class="comment">     *     we must check for S &lt; L2.  If true, S is straddled.</span></div>
+<div class="line"><a id="l02695" name="l02695"></a><span class="lineno"> 2695</span><span class="comment">     * - S inside some packet [K1, K2) before [L1, L2).</span></div>
+<div class="line"><a id="l02696" name="l02696"></a><span class="lineno"> 2696</span><span class="comment">     *   - Impossible.  Suppose S is inside [K1, K2) immediately preceding [L1, L2).  Then</span></div>
+<div class="line"><a id="l02697" name="l02697"></a><span class="lineno"> 2697</span><span class="comment">     *     snd_flying_pkts_by_seq.upper_bound(S) == [L1, L2).  But we already know</span></div>
+<div class="line"><a id="l02698" name="l02698"></a><span class="lineno"> 2698</span><span class="comment">     *     snd_flying_pkts_by_seq.upper_bound(S) == [U1, U2) (which != [L1, L2)).  So that&#39;s</span></div>
+<div class="line"><a id="l02699" name="l02699"></a><span class="lineno"> 2699</span><span class="comment">     *     impossible.  Repeat this logic for all packets [K1, K2) preceding [L1, L2) to show that</span></div>
+<div class="line"><a id="l02700" name="l02700"></a><span class="lineno"> 2700</span><span class="comment">     *     it can&#39;t be straddled by any of those either.</span></div>
+<div class="line"><a id="l02701" name="l02701"></a><span class="lineno"> 2701</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02702" name="l02702"></a><span class="lineno"> 2702</span><span class="comment">     * Therefore, S is straddled by a packet if and only if:</span></div>
+<div class="line"><a id="l02703" name="l02703"></a><span class="lineno"> 2703</span><span class="comment">     *   - prev(snd_flying_pkts_by_seq.upper_bound(S)) exists; call it [L1, L2); and</span></div>
+<div class="line"><a id="l02704" name="l02704"></a><span class="lineno"> 2704</span><span class="comment">     *   - S &lt; L2.</span></div>
+<div class="line"><a id="l02705" name="l02705"></a><span class="lineno"> 2705</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02706" name="l02706"></a><span class="lineno"> 2706</span><span class="comment">     * This can be further restated as:</span></div>
+<div class="line"><a id="l02707" name="l02707"></a><span class="lineno"> 2707</span><span class="comment">     *   - snd_flying_pkts_by_seq.upper_bound(S) != snd_flying_pkts_by_seq.begin(); and</span></div>
+<div class="line"><a id="l02708" name="l02708"></a><span class="lineno"> 2708</span><span class="comment">     *   - (letting [L1, L2) = prev(snd_flying_pkts_by_seq.upper_bound(S)))</span></div>
+<div class="line"><a id="l02709" name="l02709"></a><span class="lineno"> 2709</span><span class="comment">     *     S &lt; L2.</span></div>
+<div class="line"><a id="l02710" name="l02710"></a><span class="lineno"> 2710</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02711" name="l02711"></a><span class="lineno"> 2711</span><span class="comment">     * So check for that. */</span></div>
+<div class="line"><a id="l02712" name="l02712"></a><span class="lineno"> 2712</span> </div>
+<div class="line"><a id="l02713" name="l02713"></a><span class="lineno"> 2713</span>    <span class="comment">// Find U.</span></div>
+<div class="line"><a id="l02714" name="l02714"></a><span class="lineno"> 2714</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#abd6f3174914c3ec559954b4125f2f9dd">Peer_socket::Sent_pkt_ordered_by_seq_const_iter</a> pkt_it = snd_flying_pkts_by_seq.upper_bound(seq_num);</div>
+<div class="line"><a id="l02715" name="l02715"></a><span class="lineno"> 2715</span>    <span class="comment">// Check that prev(U) exists.</span></div>
+<div class="line"><a id="l02716" name="l02716"></a><span class="lineno"> 2716</span>    <span class="keywordflow">if</span> (pkt_it != snd_flying_pkts_by_seq.begin())</div>
+<div class="line"><a id="l02717" name="l02717"></a><span class="lineno"> 2717</span>    {</div>
+<div class="line"><a id="l02718" name="l02718"></a><span class="lineno"> 2718</span>      <span class="comment">// prev(U) = L exists.  Compute L.</span></div>
+<div class="line"><a id="l02719" name="l02719"></a><span class="lineno"> 2719</span>      --pkt_it;</div>
+<div class="line"><a id="l02720" name="l02720"></a><span class="lineno"> 2720</span>      <span class="comment">// Compute [L1, L2), and check for straddling: S &lt; L2.  pkt_it-&gt;second points into snd_flying_pkts_by_when.</span></div>
+<div class="line"><a id="l02721" name="l02721"></a><span class="lineno"> 2721</span>      <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> l1, l2;</div>
+<div class="line"><a id="l02722" name="l02722"></a><span class="lineno"> 2722</span>      get_seq_num_range(pkt_it-&gt;second, &amp;l1, &amp;l2);</div>
+<div class="line"><a id="l02723" name="l02723"></a><span class="lineno"> 2723</span> </div>
+<div class="line"><a id="l02724" name="l02724"></a><span class="lineno"> 2724</span>      assert(l1 &lt; seq_num); <span class="comment">// Sanity-check of upper_bound().</span></div>
+<div class="line"><a id="l02725" name="l02725"></a><span class="lineno"> 2725</span>      <span class="keywordflow">if</span> (seq_num &lt; l2)</div>
+<div class="line"><a id="l02726" name="l02726"></a><span class="lineno"> 2726</span>      {</div>
+<div class="line"><a id="l02727" name="l02727"></a><span class="lineno"> 2727</span>        <span class="comment">// Straddles.  Other side is sending us bad stuff.  As above, warn and RST/close.</span></div>
+<div class="line"><a id="l02728" name="l02728"></a><span class="lineno"> 2728</span> </div>
+<div class="line"><a id="l02729" name="l02729"></a><span class="lineno"> 2729</span>        <span class="comment">// Register one individual acknowledgment of unknown # of bytes of data (not acceptable due to error).</span></div>
+<div class="line"><a id="l02730" name="l02730"></a><span class="lineno"> 2730</span>        snd_stats.error_ack();</div>
+<div class="line"><a id="l02731" name="l02731"></a><span class="lineno"> 2731</span> </div>
+<div class="line"><a id="l02732" name="l02732"></a><span class="lineno"> 2732</span>        <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
+<div class="line"><a id="l02733" name="l02733"></a><span class="lineno"> 2733</span>                         <span class="stringliteral">&quot;Received [ACK]; &quot;</span></div>
+<div class="line"><a id="l02734" name="l02734"></a><span class="lineno"> 2734</span>                         <span class="stringliteral">&quot;acknowledgment [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) is at least partially inside &quot;</span></div>
+<div class="line"><a id="l02735" name="l02735"></a><span class="lineno"> 2735</span>                         <span class="stringliteral">&quot;packet [&quot;</span> &lt;&lt; l1 &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; l2 &lt;&lt; <span class="stringliteral">&quot;).&quot;</span>);</div>
+<div class="line"><a id="l02736" name="l02736"></a><span class="lineno"> 2736</span>        rst_and_close_connection_immediately(socket_id, sock, <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a8ad7147a3e4e63313c7a5954790cd458">error::Code::S_SEQ_NUM_ARITHMETIC_FAILURE</a>, <span class="keyword">true</span>);</div>
+<div class="line"><a id="l02737" name="l02737"></a><span class="lineno"> 2737</span>        <span class="comment">/* ^-- defer_delta_check == true: because the only way to get to this method is from</span></div>
+<div class="line"><a id="l02738" name="l02738"></a><span class="lineno"> 2738</span><span class="comment">         * async_low_lvl_recv(), which will perform event_set_all_check_delta(false) at the end of itself,</span></div>
+<div class="line"><a id="l02739" name="l02739"></a><span class="lineno"> 2739</span><span class="comment">         * before the boost.asio handler exits.  See Node::m_sock_events doc header for details. */</span></div>
+<div class="line"><a id="l02740" name="l02740"></a><span class="lineno"> 2740</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Other out-params are meaningless.</span></div>
+<div class="line"><a id="l02741" name="l02741"></a><span class="lineno"> 2741</span>      }</div>
+<div class="line"><a id="l02742" name="l02742"></a><span class="lineno"> 2742</span>      <span class="comment">// else if (seq_num &gt;= l2) { It&#39;s past [L1, L2); does not straddle. }</span></div>
+<div class="line"><a id="l02743" name="l02743"></a><span class="lineno"> 2743</span>    }</div>
+<div class="line"><a id="l02744" name="l02744"></a><span class="lineno"> 2744</span>    <span class="comment">// else { Legit because there is no packet L that could possibly straddle seq_num. }</span></div>
+<div class="line"><a id="l02745" name="l02745"></a><span class="lineno"> 2745</span> </div>
+<div class="line"><a id="l02746" name="l02746"></a><span class="lineno"> 2746</span>    <span class="comment">/* OK, so NOW do we know it&#39;s a duplicate/late acknowledgment?  Well, no.  Suppose we sent packet</span></div>
+<div class="line"><a id="l02747" name="l02747"></a><span class="lineno"> 2747</span><span class="comment">     * [5, 10) and get ACK with [5, ...).  That&#39;s fine.  So we erase [5, 10) from</span></div>
+<div class="line"><a id="l02748" name="l02748"></a><span class="lineno"> 2748</span><span class="comment">     * snd_flying_pkts_by_seq.  Now say we get ACK with [7, ...).  Well, that&#39;s in the</span></div>
+<div class="line"><a id="l02749" name="l02749"></a><span class="lineno"> 2749</span><span class="comment">     * [m_snd_next_seq_num, m_snd_next_seq_num) range certainly; and it doesn&#39;t get straddled by</span></div>
+<div class="line"><a id="l02750" name="l02750"></a><span class="lineno"> 2750</span><span class="comment">     * any member of snd_flying_pkts_by_seq.  Yet it&#39;s certainly invalid: we never sent (and could&#39;ve</span></div>
+<div class="line"><a id="l02751" name="l02751"></a><span class="lineno"> 2751</span><span class="comment">     * never sent) [7, ...).  We can&#39;t know that, however, since [5, 10) is gone from</span></div>
+<div class="line"><a id="l02752" name="l02752"></a><span class="lineno"> 2752</span><span class="comment">     * snd_flying_pkts_by_seq.  Is this OK?  More or less, yes.  What do we do with a duplicate/late</span></div>
+<div class="line"><a id="l02753" name="l02753"></a><span class="lineno"> 2753</span><span class="comment">     * acknowledgment just below?  We log and ignore it.  That doesn&#39;t seem harmful.  NORMALLY</span></div>
+<div class="line"><a id="l02754" name="l02754"></a><span class="lineno"> 2754</span><span class="comment">     * when something is invalid we&#39;d RST and close connection, but here we can&#39;t know we should</span></div>
+<div class="line"><a id="l02755" name="l02755"></a><span class="lineno"> 2755</span><span class="comment">     * do that; however ignoring it still seems fine and better than doggedly inventing data</span></div>
+<div class="line"><a id="l02756" name="l02756"></a><span class="lineno"> 2756</span><span class="comment">     * structures to detect this corner case.</span></div>
+<div class="line"><a id="l02757" name="l02757"></a><span class="lineno"> 2757</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02758" name="l02758"></a><span class="lineno"> 2758</span><span class="comment">     * What about m_snd_cong_ctl?  Should we report this in m_snd_cong_ctl-&gt;on_acks()?</span></div>
+<div class="line"><a id="l02759" name="l02759"></a><span class="lineno"> 2759</span><span class="comment">     * No.  on_acks() specifically documents that it wants info on</span></div>
+<div class="line"><a id="l02760" name="l02760"></a><span class="lineno"> 2760</span><span class="comment">     * In-flight-&gt;Acknowledged acknowledgments, not duplicates.  (Briefly,</span></div>
+<div class="line"><a id="l02761" name="l02761"></a><span class="lineno"> 2761</span><span class="comment">     * that&#39;s because it&#39;s measuring sent data in the pipe; acknowledgment duplication has unclear</span></div>
+<div class="line"><a id="l02762" name="l02762"></a><span class="lineno"> 2762</span><span class="comment">     * implications about what it&#39;s acknowledging; it is unlikely that it represents more pipe</span></div>
+<div class="line"><a id="l02763" name="l02763"></a><span class="lineno"> 2763</span><span class="comment">     * being available than if only one acknolwedgment had been received.  In any case this should</span></div>
+<div class="line"><a id="l02764" name="l02764"></a><span class="lineno"> 2764</span><span class="comment">     * hopefully be pretty rare and thus not too significant either way.)</span></div>
+<div class="line"><a id="l02765" name="l02765"></a><span class="lineno"> 2765</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02766" name="l02766"></a><span class="lineno"> 2766</span><span class="comment">     * Same reasoning for not counting it in m_snd_bandwidth_estimator-&gt;on_acks(). */</span></div>
+<div class="line"><a id="l02767" name="l02767"></a><span class="lineno"> 2767</span> </div>
+<div class="line"><a id="l02768" name="l02768"></a><span class="lineno"> 2768</span>    <span class="comment">// Per above discussion, ignore duplicate (or maybe invalid, but we can&#39;t know/assume that) acknowledgment.</span></div>
+<div class="line"><a id="l02769" name="l02769"></a><span class="lineno"> 2769</span> </div>
+<div class="line"><a id="l02770" name="l02770"></a><span class="lineno"> 2770</span>    <span class="comment">// Register one individual acknowledgment of unknown # of bytes of data (late, dupe, or maybe invalid).</span></div>
+<div class="line"><a id="l02771" name="l02771"></a><span class="lineno"> 2771</span>    snd_stats.late_or_dupe_ack();</div>
+<div class="line"><a id="l02772" name="l02772"></a><span class="lineno"> 2772</span> </div>
+<div class="line"><a id="l02773" name="l02773"></a><span class="lineno"> 2773</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
+<div class="line"><a id="l02774" name="l02774"></a><span class="lineno"> 2774</span>                  <span class="stringliteral">&quot;Acknowledged packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) is duplicate or late (or invalid).  &quot;</span></div>
+<div class="line"><a id="l02775" name="l02775"></a><span class="lineno"> 2775</span>                  <span class="stringliteral">&quot;RTT unknown.  Ignoring.&quot;</span>);</div>
+<div class="line"><a id="l02776" name="l02776"></a><span class="lineno"> 2776</span> </div>
+<div class="line"><a id="l02777" name="l02777"></a><span class="lineno"> 2777</span>    <span class="comment">// Ensure out-params indicating a dupe/late ack such that the packet being acked is not known.</span></div>
+<div class="line"><a id="l02778" name="l02778"></a><span class="lineno"> 2778</span>    *dupe_or_late = <span class="keyword">true</span>;</div>
+<div class="line"><a id="l02779" name="l02779"></a><span class="lineno"> 2779</span>    assert(*acked_pkt_it == snd_flying_pkts_by_when.past_oldest()); <span class="comment">// A/k/a end().</span></div>
+<div class="line"><a id="l02780" name="l02780"></a><span class="lineno"> 2780</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
+<div class="line"><a id="l02781" name="l02781"></a><span class="lineno"> 2781</span>  } <span class="comment">// if (seq_num is not in snd_flying_pkts*) // i.e., duplicate/late acknowledgment with unknown acked packet.</span></div>
+<div class="line"><a id="l02782" name="l02782"></a><span class="lineno"> 2782</span>  <span class="comment">// else if (seq_num IS in snd_flying_pkts*): *acked_pkt_it points to snd_flying_pkts_by_when[seq_num].</span></div>
+<div class="line"><a id="l02783" name="l02783"></a><span class="lineno"> 2783</span>  assert(*acked_pkt_it != snd_flying_pkts_by_when.past_oldest());</div>
+<div class="line"><a id="l02784" name="l02784"></a><span class="lineno"> 2784</span> </div>
+<div class="line"><a id="l02785" name="l02785"></a><span class="lineno"> 2785</span>  <span class="comment">// It&#39;s an ack of sequence number we&#39;d sent, but if retransmission is on it may not be of the one we LAST sent.</span></div>
+<div class="line"><a id="l02786" name="l02786"></a><span class="lineno"> 2786</span> </div>
+<div class="line"><a id="l02787" name="l02787"></a><span class="lineno"> 2787</span>  <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">Peer_socket::Sent_packet</a>&amp; acked_pkt = *((*acked_pkt_it)-&gt;second);</div>
+<div class="line"><a id="l02788" name="l02788"></a><span class="lineno"> 2788</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> acked_rexmit_id = <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> ? acked_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf">m_packet</a>-&gt;m_rexmit_id : 0;</div>
+<div class="line"><a id="l02789" name="l02789"></a><span class="lineno"> 2789</span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> seq_num_end; <span class="comment">// Get sequence number just past last datum in packet.</span></div>
+<div class="line"><a id="l02790" name="l02790"></a><span class="lineno"> 2790</span>  get_seq_num_range(*acked_pkt_it, 0, &amp;seq_num_end);</div>
+<div class="line"><a id="l02791" name="l02791"></a><span class="lineno"> 2791</span> </div>
+<div class="line"><a id="l02792" name="l02792"></a><span class="lineno"> 2792</span>  <span class="comment">// Note that both rexmit_id and acked_rexmit_id are guaranteed 0 at this point if !rexmit_on.</span></div>
+<div class="line"><a id="l02793" name="l02793"></a><span class="lineno"> 2793</span> </div>
+<div class="line"><a id="l02794" name="l02794"></a><span class="lineno"> 2794</span>  <span class="keywordflow">if</span> (rexmit_id &gt; acked_rexmit_id)</div>
+<div class="line"><a id="l02795" name="l02795"></a><span class="lineno"> 2795</span>  {</div>
+<div class="line"><a id="l02796" name="l02796"></a><span class="lineno"> 2796</span>    <span class="comment">// This is entirely illegal.  Can&#39;t acknowledge a packet copy we hadn&#39;t sent yet.</span></div>
+<div class="line"><a id="l02797" name="l02797"></a><span class="lineno"> 2797</span>    <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
+<div class="line"><a id="l02798" name="l02798"></a><span class="lineno"> 2798</span>                     <span class="stringliteral">&quot;Acknowledged packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l02799" name="l02799"></a><span class="lineno"> 2799</span>                     <span class="stringliteral">&quot;rexmit_id [&quot;</span> &lt;&lt; <span class="keywordtype">int</span>(rexmit_id) &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l02800" name="l02800"></a><span class="lineno"> 2800</span>                     <span class="stringliteral">&quot;exceeds highest sent rexmit_id [&quot;</span> &lt;&lt; <span class="keywordtype">int</span>(acked_rexmit_id) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l02801" name="l02801"></a><span class="lineno"> 2801</span>    rst_and_close_connection_immediately(socket_id, sock, <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a8ad7147a3e4e63313c7a5954790cd458">error::Code::S_SEQ_NUM_ARITHMETIC_FAILURE</a>, <span class="keyword">true</span>);</div>
+<div class="line"><a id="l02802" name="l02802"></a><span class="lineno"> 2802</span>    <span class="comment">/* ^-- defer_delta_check == true: because the only way to get to this method is from</span></div>
+<div class="line"><a id="l02803" name="l02803"></a><span class="lineno"> 2803</span><span class="comment">     * async_low_lvl_recv(), which will perform event_set_all_check_delta(false) at the end of itself,</span></div>
+<div class="line"><a id="l02804" name="l02804"></a><span class="lineno"> 2804</span><span class="comment">     * before the boost.asio handler exits.  See Node::m_sock_events doc header for details. */</span></div>
+<div class="line"><a id="l02805" name="l02805"></a><span class="lineno"> 2805</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Other out-params are meaningless.</span></div>
+<div class="line"><a id="l02806" name="l02806"></a><span class="lineno"> 2806</span>  }</div>
+<div class="line"><a id="l02807" name="l02807"></a><span class="lineno"> 2807</span>  <span class="comment">// else if (rexmit_id &lt;= acked_rexmit_id)</span></div>
+<div class="line"><a id="l02808" name="l02808"></a><span class="lineno"> 2808</span> </div>
+<div class="line"><a id="l02809" name="l02809"></a><span class="lineno"> 2809</span>  <span class="keywordflow">if</span> (rexmit_id != acked_rexmit_id)</div>
+<div class="line"><a id="l02810" name="l02810"></a><span class="lineno"> 2810</span>  {</div>
+<div class="line"><a id="l02811" name="l02811"></a><span class="lineno"> 2811</span>    assert(rexmit_id &lt; acked_rexmit_id);</div>
+<div class="line"><a id="l02812" name="l02812"></a><span class="lineno"> 2812</span> </div>
+<div class="line"><a id="l02813" name="l02813"></a><span class="lineno"> 2813</span>    <span class="comment">/* This is legal: it&#39;s possible we had sent packet P, considered it Dropped, retransmitted it</span></div>
+<div class="line"><a id="l02814" name="l02814"></a><span class="lineno"> 2814</span><span class="comment">     * (thus incrementing rexmit_id), and have now received a late acknowledgment of the</span></div>
+<div class="line"><a id="l02815" name="l02815"></a><span class="lineno"> 2815</span><span class="comment">     * PREVIOUS attempt to send P (before retransmission).  We could actually consider this</span></div>
+<div class="line"><a id="l02816" name="l02816"></a><span class="lineno"> 2816</span><span class="comment">     * entirely equivalent to simply getting the last attempt acked.  In fact I specifically kept</span></div>
+<div class="line"><a id="l02817" name="l02817"></a><span class="lineno"> 2817</span><span class="comment">     * an array for m_sent_when, so that we can even compute accurate RTT.  Yet, at least for now,</span></div>
+<div class="line"><a id="l02818" name="l02818"></a><span class="lineno"> 2818</span><span class="comment">     * I am going to ignore such an acknowledgment.  Reasons:</span></div>
+<div class="line"><a id="l02819" name="l02819"></a><span class="lineno"> 2819</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02820" name="l02820"></a><span class="lineno"> 2820</span><span class="comment">     *   - The RTT may be an outlier affected by some random event; we considered it Dropped, so</span></div>
+<div class="line"><a id="l02821" name="l02821"></a><span class="lineno"> 2821</span><span class="comment">     *     if those heuristics are generally sound, getting a late ack is suspicious.</span></div>
+<div class="line"><a id="l02822" name="l02822"></a><span class="lineno"> 2822</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02823" name="l02823"></a><span class="lineno"> 2823</span><span class="comment">     *   - Suppose I do take the RTT and report to congestion control, use for SRTT computation,</span></div>
+<div class="line"><a id="l02824" name="l02824"></a><span class="lineno"> 2824</span><span class="comment">     *     and remove from snd_flying_pkts*.  I&#39;ve in effect recorded a loss but then also</span></div>
+<div class="line"><a id="l02825" name="l02825"></a><span class="lineno"> 2825</span><span class="comment">     *     reported a successful retransmission, even though the ack is not for the retransmission</span></div>
+<div class="line"><a id="l02826" name="l02826"></a><span class="lineno"> 2826</span><span class="comment">     *     but more like a correction on the original loss.  That&#39;s potentially fine, but chances</span></div>
+<div class="line"><a id="l02827" name="l02827"></a><span class="lineno"> 2827</span><span class="comment">     *     are I will soon receive the ack for the latest transmission, which is what I was really</span></div>
+<div class="line"><a id="l02828" name="l02828"></a><span class="lineno"> 2828</span><span class="comment">     *     expecting.  That one will now be considered a late ack and will be ignored, even though</span></div>
+<div class="line"><a id="l02829" name="l02829"></a><span class="lineno"> 2829</span><span class="comment">     *     that RTT is actually probably more accurate, since chances are it arrived before the</span></div>
+<div class="line"><a id="l02830" name="l02830"></a><span class="lineno"> 2830</span><span class="comment">     *     retransmission would&#39;ve been considered Dropped as well.  So, basically, we&#39;re kind of</span></div>
+<div class="line"><a id="l02831" name="l02831"></a><span class="lineno"> 2831</span><span class="comment">     *     trying to use the &quot;two wrongs make a right&quot; philosophy, which seems messy.</span></div>
+<div class="line"><a id="l02832" name="l02832"></a><span class="lineno"> 2832</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02833" name="l02833"></a><span class="lineno"> 2833</span><span class="comment">     *   - Earlier in the method, I mentioned that if we detect P as dropped and queue it for</span></div>
+<div class="line"><a id="l02834" name="l02834"></a><span class="lineno"> 2834</span><span class="comment">     *     retransmission but get P acked *before* we get a chance to retransmit, then we consider</span></div>
+<div class="line"><a id="l02835" name="l02835"></a><span class="lineno"> 2835</span><span class="comment">     *     that ack as late and ignore it (and will still retransmit P).  The reasons for that are</span></div>
+<div class="line"><a id="l02836" name="l02836"></a><span class="lineno"> 2836</span><span class="comment">     *     given in that comment.  However, given that we made that decision, it would seem</span></div>
+<div class="line"><a id="l02837" name="l02837"></a><span class="lineno"> 2837</span><span class="comment">     *     strange to follow a different philosophy just because we did happen to get to</span></div>
+<div class="line"><a id="l02838" name="l02838"></a><span class="lineno"> 2838</span><span class="comment">     *     retransmit P.  That would be inconsistent.</span></div>
+<div class="line"><a id="l02839" name="l02839"></a><span class="lineno"> 2839</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02840" name="l02840"></a><span class="lineno"> 2840</span><span class="comment">     *   - Keeping it in perspective, it should be fairly rare that a packet we considered Dropped</span></div>
+<div class="line"><a id="l02841" name="l02841"></a><span class="lineno"> 2841</span><span class="comment">     *     is acked after all.  So it is perhaps not worth the trouble to go crazy about this</span></div>
+<div class="line"><a id="l02842" name="l02842"></a><span class="lineno"> 2842</span><span class="comment">     *     corner case.</span></div>
+<div class="line"><a id="l02843" name="l02843"></a><span class="lineno"> 2843</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02844" name="l02844"></a><span class="lineno"> 2844</span><span class="comment">     * Nevertheless, a @todo would be to experimentally measure the effect of this policy and</span></div>
+<div class="line"><a id="l02845" name="l02845"></a><span class="lineno"> 2845</span><span class="comment">     * decide whether it is sound.  In that case also consider the aforementioned &quot;P is acked</span></div>
+<div class="line"><a id="l02846" name="l02846"></a><span class="lineno"> 2846</span><span class="comment">     * after queued for retransmission but before retransmitted&quot; corner case. */</span></div>
+<div class="line"><a id="l02847" name="l02847"></a><span class="lineno"> 2847</span> </div>
+<div class="line"><a id="l02848" name="l02848"></a><span class="lineno"> 2848</span>    <span class="comment">// Register one individual acknowledgment of unknown # of bytes of data (late).</span></div>
+<div class="line"><a id="l02849" name="l02849"></a><span class="lineno"> 2849</span>    snd_stats.late_or_dupe_ack();</div>
 <div class="line"><a id="l02850" name="l02850"></a><span class="lineno"> 2850</span> </div>
-<div class="line"><a id="l02851" name="l02851"></a><span class="lineno"> 2851</span>    <span class="comment">// Ensure out-params indicating a dupe/late ack of a specific known sent packet.</span></div>
-<div class="line"><a id="l02852" name="l02852"></a><span class="lineno"> 2852</span>    *dupe_or_late = <span class="keyword">true</span>;</div>
-<div class="line"><a id="l02853" name="l02853"></a><span class="lineno"> 2853</span>    assert(*acked_pkt_it != snd_flying_pkts_by_when.past_oldest()); <span class="comment">// A/k/a end().</span></div>
-<div class="line"><a id="l02854" name="l02854"></a><span class="lineno"> 2854</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
-<div class="line"><a id="l02855" name="l02855"></a><span class="lineno"> 2855</span>  }</div>
-<div class="line"><a id="l02856" name="l02856"></a><span class="lineno"> 2856</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l02857" name="l02857"></a><span class="lineno"> 2857</span>  assert(rexmit_id == acked_rexmit_id);</div>
-<div class="line"><a id="l02858" name="l02858"></a><span class="lineno"> 2858</span> </div>
-<div class="line"><a id="l02859" name="l02859"></a><span class="lineno"> 2859</span>  <span class="comment">// Do not log this mainstream case; only the exceptions above.  RTT will probably be logged separately.</span></div>
-<div class="line"><a id="l02860" name="l02860"></a><span class="lineno"> 2860</span> </div>
-<div class="line"><a id="l02861" name="l02861"></a><span class="lineno"> 2861</span>  <span class="comment">// Register one individual acknowledgment of N bytes of data (converts from In-flight to Acknowledged).</span></div>
-<div class="line"><a id="l02862" name="l02862"></a><span class="lineno"> 2862</span>  snd_stats.good_ack(acked_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a5b5762a1effba90f631c06ad76f9774b">m_size</a>);</div>
-<div class="line"><a id="l02863" name="l02863"></a><span class="lineno"> 2863</span> </div>
-<div class="line"><a id="l02864" name="l02864"></a><span class="lineno"> 2864</span>  <span class="comment">// Ensure out-params indicating an in-time, first ack of a specific known sent packet.</span></div>
-<div class="line"><a id="l02865" name="l02865"></a><span class="lineno"> 2865</span>  *dupe_or_late = <span class="keyword">false</span>;</div>
-<div class="line"><a id="l02866" name="l02866"></a><span class="lineno"> 2866</span>  assert(*acked_pkt_it != snd_flying_pkts_by_when.past_oldest()); <span class="comment">// A/k/a end().</span></div>
-<div class="line"><a id="l02867" name="l02867"></a><span class="lineno"> 2867</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
-<div class="line"><a id="l02868" name="l02868"></a><span class="lineno"> 2868</span>} <span class="comment">// Node::categorize_individual_ack()</span></div>
+<div class="line"><a id="l02851" name="l02851"></a><span class="lineno"> 2851</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
+<div class="line"><a id="l02852" name="l02852"></a><span class="lineno"> 2852</span>                  <span class="stringliteral">&quot;Acknowledged packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l02853" name="l02853"></a><span class="lineno"> 2853</span>                  <span class="stringliteral">&quot;order_num [&quot;</span> &lt;&lt; acked_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">m_sent_when</a>[rexmit_id].m_order_num &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l02854" name="l02854"></a><span class="lineno"> 2854</span>                  <span class="stringliteral">&quot;rexmit_id [&quot;</span> &lt;&lt; <span class="keywordtype">int</span>(rexmit_id) &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l02855" name="l02855"></a><span class="lineno"> 2855</span>                  <span class="stringliteral">&quot;is less than highest sent [&quot;</span> &lt;&lt; <span class="keywordtype">int</span>(acked_rexmit_id) &lt;&lt; <span class="stringliteral">&quot;].  Ignoring.&quot;</span>);</div>
+<div class="line"><a id="l02856" name="l02856"></a><span class="lineno"> 2856</span> </div>
+<div class="line"><a id="l02857" name="l02857"></a><span class="lineno"> 2857</span>    <span class="comment">// Ensure out-params indicating a dupe/late ack of a specific known sent packet.</span></div>
+<div class="line"><a id="l02858" name="l02858"></a><span class="lineno"> 2858</span>    *dupe_or_late = <span class="keyword">true</span>;</div>
+<div class="line"><a id="l02859" name="l02859"></a><span class="lineno"> 2859</span>    assert(*acked_pkt_it != snd_flying_pkts_by_when.past_oldest()); <span class="comment">// A/k/a end().</span></div>
+<div class="line"><a id="l02860" name="l02860"></a><span class="lineno"> 2860</span>    <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
+<div class="line"><a id="l02861" name="l02861"></a><span class="lineno"> 2861</span>  }</div>
+<div class="line"><a id="l02862" name="l02862"></a><span class="lineno"> 2862</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l02863" name="l02863"></a><span class="lineno"> 2863</span>  assert(rexmit_id == acked_rexmit_id);</div>
+<div class="line"><a id="l02864" name="l02864"></a><span class="lineno"> 2864</span> </div>
+<div class="line"><a id="l02865" name="l02865"></a><span class="lineno"> 2865</span>  <span class="comment">// Do not log this mainstream case; only the exceptions above.  RTT will probably be logged separately.</span></div>
+<div class="line"><a id="l02866" name="l02866"></a><span class="lineno"> 2866</span> </div>
+<div class="line"><a id="l02867" name="l02867"></a><span class="lineno"> 2867</span>  <span class="comment">// Register one individual acknowledgment of N bytes of data (converts from In-flight to Acknowledged).</span></div>
+<div class="line"><a id="l02868" name="l02868"></a><span class="lineno"> 2868</span>  snd_stats.good_ack(acked_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a5b5762a1effba90f631c06ad76f9774b">m_size</a>);</div>
 <div class="line"><a id="l02869" name="l02869"></a><span class="lineno"> 2869</span> </div>
-<div class="line"><a id="l02870" name="l02870"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#adeccd8c86fcd54733e42593629fad96b"> 2870</a></span><a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#adeccd8c86fcd54733e42593629fad96b">Node::compute_rtt_on_ack</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Sent_packet::Const_ptr</a> flying_pkt,</div>
-<div class="line"><a id="l02871" name="l02871"></a><span class="lineno"> 2871</span>                                       <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; time_now,</div>
-<div class="line"><a id="l02872" name="l02872"></a><span class="lineno"> 2872</span>                                       <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">Ack_packet::Individual_ack::Const_ptr</a> ack,</div>
-<div class="line"><a id="l02873" name="l02873"></a><span class="lineno"> 2873</span>                                       <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Peer_socket::Sent_packet::Sent_when</a>** sent_when)<span class="keyword"> const</span></div>
-<div class="line"><a id="l02874" name="l02874"></a><span class="lineno"> 2874</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l02875" name="l02875"></a><span class="lineno"> 2875</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
-<div class="line"><a id="l02876" name="l02876"></a><span class="lineno"> 2876</span>  <span class="keyword">using </span>boost::chrono::round;</div>
-<div class="line"><a id="l02877" name="l02877"></a><span class="lineno"> 2877</span> </div>
-<div class="line"><a id="l02878" name="l02878"></a><span class="lineno"> 2878</span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> round_trip_time;</div>
-<div class="line"><a id="l02879" name="l02879"></a><span class="lineno"> 2879</span> </div>
-<div class="line"><a id="l02880" name="l02880"></a><span class="lineno"> 2880</span>  <span class="comment">/* This helper of handle_accumulated_acks() exists to make the latter method briefer/readable, not for code reuse</span></div>
-<div class="line"><a id="l02881" name="l02881"></a><span class="lineno"> 2881</span><span class="comment">   * as of this writing.  It computes the RTT implied by the given individual ack and also returns the Sent_when</span></div>
-<div class="line"><a id="l02882" name="l02882"></a><span class="lineno"> 2882</span><span class="comment">   * (which contains info on when the original packet was sent) structure as an out-param. */</span></div>
+<div class="line"><a id="l02870" name="l02870"></a><span class="lineno"> 2870</span>  <span class="comment">// Ensure out-params indicating an in-time, first ack of a specific known sent packet.</span></div>
+<div class="line"><a id="l02871" name="l02871"></a><span class="lineno"> 2871</span>  *dupe_or_late = <span class="keyword">false</span>;</div>
+<div class="line"><a id="l02872" name="l02872"></a><span class="lineno"> 2872</span>  assert(*acked_pkt_it != snd_flying_pkts_by_when.past_oldest()); <span class="comment">// A/k/a end().</span></div>
+<div class="line"><a id="l02873" name="l02873"></a><span class="lineno"> 2873</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
+<div class="line"><a id="l02874" name="l02874"></a><span class="lineno"> 2874</span>} <span class="comment">// Node::categorize_individual_ack()</span></div>
+<div class="line"><a id="l02875" name="l02875"></a><span class="lineno"> 2875</span> </div>
+<div class="line"><a id="l02876" name="l02876"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#adeccd8c86fcd54733e42593629fad96b"> 2876</a></span><a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#adeccd8c86fcd54733e42593629fad96b">Node::compute_rtt_on_ack</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Sent_packet::Const_ptr</a> flying_pkt,</div>
+<div class="line"><a id="l02877" name="l02877"></a><span class="lineno"> 2877</span>                                       <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; time_now,</div>
+<div class="line"><a id="l02878" name="l02878"></a><span class="lineno"> 2878</span>                                       <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">Ack_packet::Individual_ack::Const_ptr</a> ack,</div>
+<div class="line"><a id="l02879" name="l02879"></a><span class="lineno"> 2879</span>                                       <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Peer_socket::Sent_packet::Sent_when</a>** sent_when)<span class="keyword"> const</span></div>
+<div class="line"><a id="l02880" name="l02880"></a><span class="lineno"> 2880</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l02881" name="l02881"></a><span class="lineno"> 2881</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
+<div class="line"><a id="l02882" name="l02882"></a><span class="lineno"> 2882</span>  <span class="keyword">using </span>boost::chrono::round;</div>
 <div class="line"><a id="l02883" name="l02883"></a><span class="lineno"> 2883</span> </div>
-<div class="line"><a id="l02884" name="l02884"></a><span class="lineno"> 2884</span>  <span class="comment">/* RTT subtleties:</span></div>
-<div class="line"><a id="l02885" name="l02885"></a><span class="lineno"> 2885</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02886" name="l02886"></a><span class="lineno"> 2886</span><span class="comment">   * How long did the other side, upon receiving the acked packet, wait before sending this</span></div>
-<div class="line"><a id="l02887" name="l02887"></a><span class="lineno"> 2887</span><span class="comment">   * containing ACK with that individual acknowledgment?  Why do we care?  For RTT.  Why do we</span></div>
-<div class="line"><a id="l02888" name="l02888"></a><span class="lineno"> 2888</span><span class="comment">   * want RTT?  To measure how long it takes for a sent packet to reach the receiver (one-way trip</span></div>
-<div class="line"><a id="l02889" name="l02889"></a><span class="lineno"> 2889</span><span class="comment">   * time, or OWTT).  Since mesuring OWTT is quite hard/impossible due to lack of absolute clock</span></div>
-<div class="line"><a id="l02890" name="l02890"></a><span class="lineno"> 2890</span><span class="comment">   * synchronization between us and the receiver, RTT/2 is used as the next best way to get OWTT.</span></div>
-<div class="line"><a id="l02891" name="l02891"></a><span class="lineno"> 2891</span><span class="comment">   * We can measure RTT by subtracting our recorded packet send time from the current time (ACK</span></div>
-<div class="line"><a id="l02892" name="l02892"></a><span class="lineno"> 2892</span><span class="comment">   * receipt time).  However, the ACK delay introduced by the receiver to reduce ACK overhead has</span></div>
-<div class="line"><a id="l02893" name="l02893"></a><span class="lineno"> 2893</span><span class="comment">   * nothing to do with OWTT; it just (randomly, from the other side&#39;s point of view) inflates the RTT.</span></div>
-<div class="line"><a id="l02894" name="l02894"></a><span class="lineno"> 2894</span><span class="comment">   * Thus we subtract the ACK delay from the RTT to get the actual RTT we use for congestion control, etc. */</span></div>
-<div class="line"><a id="l02895" name="l02895"></a><span class="lineno"> 2895</span> </div>
-<div class="line"><a id="l02896" name="l02896"></a><span class="lineno"> 2896</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rexmit_id = ack-&gt;m_rexmit_id;</div>
-<div class="line"><a id="l02897" name="l02897"></a><span class="lineno"> 2897</span>  <span class="comment">// Get the RTT for the transmission attempt that is actually being acknowledged (always 0 if retransmission off).</span></div>
-<div class="line"><a id="l02898" name="l02898"></a><span class="lineno"> 2898</span>  *sent_when = &amp;(flying_pkt-&gt;m_sent_when[rexmit_id]);</div>
-<div class="line"><a id="l02899" name="l02899"></a><span class="lineno"> 2899</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">Peer_socket::order_num_t</a> order_num = (*sent_when)-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">m_order_num</a>;</div>
-<div class="line"><a id="l02900" name="l02900"></a><span class="lineno"> 2900</span> </div>
-<div class="line"><a id="l02901" name="l02901"></a><span class="lineno"> 2901</span>  <span class="comment">/* ?second-resolution value (ack_delay) subtracted from max-resolution values.  If ack_delay is</span></div>
-<div class="line"><a id="l02902" name="l02902"></a><span class="lineno"> 2902</span><span class="comment">   * also in the max-resolution time unit, then there is no loss of precision.  Otherwise we lose</span></div>
-<div class="line"><a id="l02903" name="l02903"></a><span class="lineno"> 2903</span><span class="comment">   * precision by subtracting a number with fewer significant digits from one with more</span></div>
-<div class="line"><a id="l02904" name="l02904"></a><span class="lineno"> 2904</span><span class="comment">   * significant digits.  So Ack_delay_time_unit should ideally be Fine_duration, for precise RTT</span></div>
-<div class="line"><a id="l02905" name="l02905"></a><span class="lineno"> 2905</span><span class="comment">   * values (especially for queueing delay-based congestion control algorithms); however that</span></div>
-<div class="line"><a id="l02906" name="l02906"></a><span class="lineno"> 2906</span><span class="comment">   * decision is discussed elsewhere (Low_lvl_packet). */</span></div>
-<div class="line"><a id="l02907" name="l02907"></a><span class="lineno"> 2907</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; ack_delay = ack-&gt;m_delay;</div>
-<div class="line"><a id="l02908" name="l02908"></a><span class="lineno"> 2908</span>  round_trip_time = time_now - (*sent_when)-&gt;m_sent_time - ack_delay;</div>
-<div class="line"><a id="l02909" name="l02909"></a><span class="lineno"> 2909</span> </div>
-<div class="line"><a id="l02910" name="l02910"></a><span class="lineno"> 2910</span>  <span class="keywordflow">if</span> (round_trip_time.count() &lt; 0)</div>
-<div class="line"><a id="l02911" name="l02911"></a><span class="lineno"> 2911</span>  {</div>
-<div class="line"><a id="l02912" name="l02912"></a><span class="lineno"> 2912</span>    <span class="comment">/* Because this combines measurements on both sides, and each may have some error (plus or</span></div>
-<div class="line"><a id="l02913" name="l02913"></a><span class="lineno"> 2913</span><span class="comment">     * minus a few hundred microseconds, possibly), and the result can be quite close to zero in</span></div>
-<div class="line"><a id="l02914" name="l02914"></a><span class="lineno"> 2914</span><span class="comment">     * extremely low-latency situations, this may come out to be negative.  So assume zero and</span></div>
-<div class="line"><a id="l02915" name="l02915"></a><span class="lineno"> 2915</span><span class="comment">     * log a TRACE message at most.</span></div>
-<div class="line"><a id="l02916" name="l02916"></a><span class="lineno"> 2916</span><span class="comment">     *</span></div>
-<div class="line"><a id="l02917" name="l02917"></a><span class="lineno"> 2917</span><span class="comment">     * @todo Should we put also a ceiling on the RTT?</span></div>
-<div class="line"><a id="l02918" name="l02918"></a><span class="lineno"> 2918</span><span class="comment">     * @todo For the floor, maybe it&#39;s better to use a higher guess than zero? */</span></div>
-<div class="line"><a id="l02919" name="l02919"></a><span class="lineno"> 2919</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Acknowledged packet [&quot;</span> &lt;&lt; ack-&gt;m_seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) &quot;</span></div>
-<div class="line"><a id="l02920" name="l02920"></a><span class="lineno"> 2920</span>                   <span class="stringliteral">&quot;order_num [&quot;</span> &lt;&lt; order_num &lt;&lt; <span class="stringliteral">&quot;] has negative &quot;</span></div>
-<div class="line"><a id="l02921" name="l02921"></a><span class="lineno"> 2921</span>                   <span class="stringliteral">&quot;RTT [&quot;</span> &lt;&lt; round_trip_time &lt;&lt; <span class="stringliteral">&quot;]; assuming zero.  &quot;</span></div>
-<div class="line"><a id="l02922" name="l02922"></a><span class="lineno"> 2922</span>                   <span class="stringliteral">&quot;Sent at [&quot;</span> &lt;&lt; (*sent_when)-&gt;m_sent_time &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l02923" name="l02923"></a><span class="lineno"> 2923</span>                   <span class="stringliteral">&quot;received at [&quot;</span> &lt;&lt; time_now &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l02924" name="l02924"></a><span class="lineno"> 2924</span>                   <span class="stringliteral">&quot;receiver-reported ACK delay [&quot;</span> &lt;&lt; ack_delay &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l02925" name="l02925"></a><span class="lineno"> 2925</span>    round_trip_time = Fine_duration::zero();</div>
-<div class="line"><a id="l02926" name="l02926"></a><span class="lineno"> 2926</span>  }</div>
-<div class="line"><a id="l02927" name="l02927"></a><span class="lineno"> 2927</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Acknowledged packet [&quot;</span> &lt;&lt; ack-&gt;m_seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) &quot;</span></div>
-<div class="line"><a id="l02928" name="l02928"></a><span class="lineno"> 2928</span>                 <span class="stringliteral">&quot;order_num [&quot;</span> &lt;&lt; order_num &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l02929" name="l02929"></a><span class="lineno"> 2929</span>                 <span class="stringliteral">&quot;has RTT [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(round_trip_time) &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l02930" name="l02930"></a><span class="lineno"> 2930</span>                 <span class="stringliteral">&quot;(ACK delay [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(ack_delay) &lt;&lt; <span class="stringliteral">&quot;]).&quot;</span>);</div>
-<div class="line"><a id="l02931" name="l02931"></a><span class="lineno"> 2931</span> </div>
-<div class="line"><a id="l02932" name="l02932"></a><span class="lineno"> 2932</span>  <span class="keywordflow">return</span> round_trip_time;</div>
-<div class="line"><a id="l02933" name="l02933"></a><span class="lineno"> 2933</span>} <span class="comment">// Node::compute_rtt_on_ack()</span></div>
-<div class="line"><a id="l02934" name="l02934"></a><span class="lineno"> 2934</span> </div>
-<div class="line"><a id="l02935" name="l02935"></a><span class="lineno"> 2935</span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a></div>
-<div class="line"><a id="l02936" name="l02936"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a3326b5bdc85b43232f55e2b2ec1dbe60"> 2936</a></span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a3326b5bdc85b43232f55e2b2ec1dbe60">Node::categorize_pkts_as_dropped_on_acks</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
-<div class="line"><a id="l02937" name="l02937"></a><span class="lineno"> 2937</span>                                           <span class="keyword">const</span> boost::unordered_set&lt;Peer_socket::order_num_t&gt;&amp; flying_now_acked_pkts)</div>
-<div class="line"><a id="l02938" name="l02938"></a><span class="lineno"> 2938</span>{</div>
-<div class="line"><a id="l02939" name="l02939"></a><span class="lineno"> 2939</span>  <span class="keyword">using </span>std::priority_queue;</div>
+<div class="line"><a id="l02884" name="l02884"></a><span class="lineno"> 2884</span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> round_trip_time;</div>
+<div class="line"><a id="l02885" name="l02885"></a><span class="lineno"> 2885</span> </div>
+<div class="line"><a id="l02886" name="l02886"></a><span class="lineno"> 2886</span>  <span class="comment">/* This helper of handle_accumulated_acks() exists to make the latter method briefer/readable, not for code reuse</span></div>
+<div class="line"><a id="l02887" name="l02887"></a><span class="lineno"> 2887</span><span class="comment">   * as of this writing.  It computes the RTT implied by the given individual ack and also returns the Sent_when</span></div>
+<div class="line"><a id="l02888" name="l02888"></a><span class="lineno"> 2888</span><span class="comment">   * (which contains info on when the original packet was sent) structure as an out-param. */</span></div>
+<div class="line"><a id="l02889" name="l02889"></a><span class="lineno"> 2889</span> </div>
+<div class="line"><a id="l02890" name="l02890"></a><span class="lineno"> 2890</span>  <span class="comment">/* RTT subtleties:</span></div>
+<div class="line"><a id="l02891" name="l02891"></a><span class="lineno"> 2891</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02892" name="l02892"></a><span class="lineno"> 2892</span><span class="comment">   * How long did the other side, upon receiving the acked packet, wait before sending this</span></div>
+<div class="line"><a id="l02893" name="l02893"></a><span class="lineno"> 2893</span><span class="comment">   * containing ACK with that individual acknowledgment?  Why do we care?  For RTT.  Why do we</span></div>
+<div class="line"><a id="l02894" name="l02894"></a><span class="lineno"> 2894</span><span class="comment">   * want RTT?  To measure how long it takes for a sent packet to reach the receiver (one-way trip</span></div>
+<div class="line"><a id="l02895" name="l02895"></a><span class="lineno"> 2895</span><span class="comment">   * time, or OWTT).  Since mesuring OWTT is quite hard/impossible due to lack of absolute clock</span></div>
+<div class="line"><a id="l02896" name="l02896"></a><span class="lineno"> 2896</span><span class="comment">   * synchronization between us and the receiver, RTT/2 is used as the next best way to get OWTT.</span></div>
+<div class="line"><a id="l02897" name="l02897"></a><span class="lineno"> 2897</span><span class="comment">   * We can measure RTT by subtracting our recorded packet send time from the current time (ACK</span></div>
+<div class="line"><a id="l02898" name="l02898"></a><span class="lineno"> 2898</span><span class="comment">   * receipt time).  However, the ACK delay introduced by the receiver to reduce ACK overhead has</span></div>
+<div class="line"><a id="l02899" name="l02899"></a><span class="lineno"> 2899</span><span class="comment">   * nothing to do with OWTT; it just (randomly, from the other side&#39;s point of view) inflates the RTT.</span></div>
+<div class="line"><a id="l02900" name="l02900"></a><span class="lineno"> 2900</span><span class="comment">   * Thus we subtract the ACK delay from the RTT to get the actual RTT we use for congestion control, etc. */</span></div>
+<div class="line"><a id="l02901" name="l02901"></a><span class="lineno"> 2901</span> </div>
+<div class="line"><a id="l02902" name="l02902"></a><span class="lineno"> 2902</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rexmit_id = ack-&gt;m_rexmit_id;</div>
+<div class="line"><a id="l02903" name="l02903"></a><span class="lineno"> 2903</span>  <span class="comment">// Get the RTT for the transmission attempt that is actually being acknowledged (always 0 if retransmission off).</span></div>
+<div class="line"><a id="l02904" name="l02904"></a><span class="lineno"> 2904</span>  *sent_when = &amp;(flying_pkt-&gt;m_sent_when[rexmit_id]);</div>
+<div class="line"><a id="l02905" name="l02905"></a><span class="lineno"> 2905</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">Peer_socket::order_num_t</a> order_num = (*sent_when)-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">m_order_num</a>;</div>
+<div class="line"><a id="l02906" name="l02906"></a><span class="lineno"> 2906</span> </div>
+<div class="line"><a id="l02907" name="l02907"></a><span class="lineno"> 2907</span>  <span class="comment">/* ?second-resolution value (ack_delay) subtracted from max-resolution values.  If ack_delay is</span></div>
+<div class="line"><a id="l02908" name="l02908"></a><span class="lineno"> 2908</span><span class="comment">   * also in the max-resolution time unit, then there is no loss of precision.  Otherwise we lose</span></div>
+<div class="line"><a id="l02909" name="l02909"></a><span class="lineno"> 2909</span><span class="comment">   * precision by subtracting a number with fewer significant digits from one with more</span></div>
+<div class="line"><a id="l02910" name="l02910"></a><span class="lineno"> 2910</span><span class="comment">   * significant digits.  So Ack_delay_time_unit should ideally be Fine_duration, for precise RTT</span></div>
+<div class="line"><a id="l02911" name="l02911"></a><span class="lineno"> 2911</span><span class="comment">   * values (especially for queueing delay-based congestion control algorithms); however that</span></div>
+<div class="line"><a id="l02912" name="l02912"></a><span class="lineno"> 2912</span><span class="comment">   * decision is discussed elsewhere (Low_lvl_packet). */</span></div>
+<div class="line"><a id="l02913" name="l02913"></a><span class="lineno"> 2913</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; ack_delay = ack-&gt;m_delay;</div>
+<div class="line"><a id="l02914" name="l02914"></a><span class="lineno"> 2914</span>  round_trip_time = time_now - (*sent_when)-&gt;m_sent_time - ack_delay;</div>
+<div class="line"><a id="l02915" name="l02915"></a><span class="lineno"> 2915</span> </div>
+<div class="line"><a id="l02916" name="l02916"></a><span class="lineno"> 2916</span>  <span class="keywordflow">if</span> (round_trip_time.count() &lt; 0)</div>
+<div class="line"><a id="l02917" name="l02917"></a><span class="lineno"> 2917</span>  {</div>
+<div class="line"><a id="l02918" name="l02918"></a><span class="lineno"> 2918</span>    <span class="comment">/* Because this combines measurements on both sides, and each may have some error (plus or</span></div>
+<div class="line"><a id="l02919" name="l02919"></a><span class="lineno"> 2919</span><span class="comment">     * minus a few hundred microseconds, possibly), and the result can be quite close to zero in</span></div>
+<div class="line"><a id="l02920" name="l02920"></a><span class="lineno"> 2920</span><span class="comment">     * extremely low-latency situations, this may come out to be negative.  So assume zero and</span></div>
+<div class="line"><a id="l02921" name="l02921"></a><span class="lineno"> 2921</span><span class="comment">     * log a TRACE message at most.</span></div>
+<div class="line"><a id="l02922" name="l02922"></a><span class="lineno"> 2922</span><span class="comment">     *</span></div>
+<div class="line"><a id="l02923" name="l02923"></a><span class="lineno"> 2923</span><span class="comment">     * @todo Should we put also a ceiling on the RTT?</span></div>
+<div class="line"><a id="l02924" name="l02924"></a><span class="lineno"> 2924</span><span class="comment">     * @todo For the floor, maybe it&#39;s better to use a higher guess than zero? */</span></div>
+<div class="line"><a id="l02925" name="l02925"></a><span class="lineno"> 2925</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Acknowledged packet [&quot;</span> &lt;&lt; ack-&gt;m_seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) &quot;</span></div>
+<div class="line"><a id="l02926" name="l02926"></a><span class="lineno"> 2926</span>                   <span class="stringliteral">&quot;order_num [&quot;</span> &lt;&lt; order_num &lt;&lt; <span class="stringliteral">&quot;] has negative &quot;</span></div>
+<div class="line"><a id="l02927" name="l02927"></a><span class="lineno"> 2927</span>                   <span class="stringliteral">&quot;RTT [&quot;</span> &lt;&lt; round_trip_time &lt;&lt; <span class="stringliteral">&quot;]; assuming zero.  &quot;</span></div>
+<div class="line"><a id="l02928" name="l02928"></a><span class="lineno"> 2928</span>                   <span class="stringliteral">&quot;Sent at [&quot;</span> &lt;&lt; (*sent_when)-&gt;m_sent_time &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l02929" name="l02929"></a><span class="lineno"> 2929</span>                   <span class="stringliteral">&quot;received at [&quot;</span> &lt;&lt; time_now &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l02930" name="l02930"></a><span class="lineno"> 2930</span>                   <span class="stringliteral">&quot;receiver-reported ACK delay [&quot;</span> &lt;&lt; ack_delay &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l02931" name="l02931"></a><span class="lineno"> 2931</span>    round_trip_time = Fine_duration::zero();</div>
+<div class="line"><a id="l02932" name="l02932"></a><span class="lineno"> 2932</span>  }</div>
+<div class="line"><a id="l02933" name="l02933"></a><span class="lineno"> 2933</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Acknowledged packet [&quot;</span> &lt;&lt; ack-&gt;m_seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) &quot;</span></div>
+<div class="line"><a id="l02934" name="l02934"></a><span class="lineno"> 2934</span>                 <span class="stringliteral">&quot;order_num [&quot;</span> &lt;&lt; order_num &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l02935" name="l02935"></a><span class="lineno"> 2935</span>                 <span class="stringliteral">&quot;has RTT [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(round_trip_time) &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l02936" name="l02936"></a><span class="lineno"> 2936</span>                 <span class="stringliteral">&quot;(ACK delay [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(ack_delay) &lt;&lt; <span class="stringliteral">&quot;]).&quot;</span>);</div>
+<div class="line"><a id="l02937" name="l02937"></a><span class="lineno"> 2937</span> </div>
+<div class="line"><a id="l02938" name="l02938"></a><span class="lineno"> 2938</span>  <span class="keywordflow">return</span> round_trip_time;</div>
+<div class="line"><a id="l02939" name="l02939"></a><span class="lineno"> 2939</span>} <span class="comment">// Node::compute_rtt_on_ack()</span></div>
 <div class="line"><a id="l02940" name="l02940"></a><span class="lineno"> 2940</span> </div>
-<div class="line"><a id="l02941" name="l02941"></a><span class="lineno"> 2941</span>  <span class="comment">/* This helper of handle_accumulated_acks() exists to make the latter method briefer/readable, not for code reuse</span></div>
-<div class="line"><a id="l02942" name="l02942"></a><span class="lineno"> 2942</span><span class="comment">   * as of this writing. The background is that once a set of individual acks has been processed in the sense that</span></div>
-<div class="line"><a id="l02943" name="l02943"></a><span class="lineno"> 2943</span><span class="comment">   * sock-&gt;m_snd_flying_pkts* (which tracks In-flight outbound DATA packets) has been updated by removing the</span></div>
-<div class="line"><a id="l02944" name="l02944"></a><span class="lineno"> 2944</span><span class="comment">   * acked packets (they are no longer In-flight), it&#39;s time to also recategorize certain further In-flight</span></div>
-<div class="line"><a id="l02945" name="l02945"></a><span class="lineno"> 2945</span><span class="comment">   * packets as Dropped -- the intuition being that once N packets sent LATER than a given packet P have been</span></div>
-<div class="line"><a id="l02946" name="l02946"></a><span class="lineno"> 2946</span><span class="comment">   * acked, it&#39;s highly probable that P has been Dropped by the network. This method determines the packets to drop</span></div>
-<div class="line"><a id="l02947" name="l02947"></a><span class="lineno"> 2947</span><span class="comment">   * in that fashion.</span></div>
-<div class="line"><a id="l02948" name="l02948"></a><span class="lineno"> 2948</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02949" name="l02949"></a><span class="lineno"> 2949</span><span class="comment">   * Now, as explained below, when ack set S causes packet set P&#39; to be Dropped, this (possibly null) set P&#39;</span></div>
-<div class="line"><a id="l02950" name="l02950"></a><span class="lineno"> 2950</span><span class="comment">   * always has the following form: there is some particular packet P which is the most-recently-sent one</span></div>
-<div class="line"><a id="l02951" name="l02951"></a><span class="lineno"> 2951</span><span class="comment">   * that is in P&#39;; and therefore ALL other In-flight packets sent before P must be dropped too and also are in P&#39;.</span></div>
-<div class="line"><a id="l02952" name="l02952"></a><span class="lineno"> 2952</span><span class="comment">   * Thus P is necessary/sufficient to specify P&#39;.  Thus this method simply finds and returns a thing pointing to P. */</span></div>
-<div class="line"><a id="l02953" name="l02953"></a><span class="lineno"> 2953</span> </div>
-<div class="line"><a id="l02954" name="l02954"></a><span class="lineno"> 2954</span>  <span class="comment">// For brevity and a little speed:</span></div>
-<div class="line"><a id="l02955" name="l02955"></a><span class="lineno"> 2955</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
-<div class="line"><a id="l02956" name="l02956"></a><span class="lineno"> 2956</span> </div>
-<div class="line"><a id="l02957" name="l02957"></a><span class="lineno"> 2957</span>  <span class="comment">/* OK, snd_flying_pkts* has been updated, in that we&#39;ve removed any Sent_packet entries</span></div>
-<div class="line"><a id="l02958" name="l02958"></a><span class="lineno"> 2958</span><span class="comment">   * corresponding to valid acknolwedgments in this ACK.  As promised elsewhere we should also update</span></div>
-<div class="line"><a id="l02959" name="l02959"></a><span class="lineno"> 2959</span><span class="comment">   * the remaining Sent_packets&#39; m_acks_after_me entries and erase any Sent_packets that we consider</span></div>
-<div class="line"><a id="l02960" name="l02960"></a><span class="lineno"> 2960</span><span class="comment">   * Dropped due to too high m_acks_after_me values.  (As in TCP Fast Retransmit/Recovery, an</span></div>
-<div class="line"><a id="l02961" name="l02961"></a><span class="lineno"> 2961</span><span class="comment">   * unacknowledged packet is considered Dropped based on the heuristic that a few packets with</span></div>
-<div class="line"><a id="l02962" name="l02962"></a><span class="lineno"> 2962</span><span class="comment">   * higher sequence numbers have been acknowledged.  Except since we have Sent_when, that should be</span></div>
-<div class="line"><a id="l02963" name="l02963"></a><span class="lineno"> 2963</span><span class="comment">   * even better than using sequence number ordering as TCP would.)</span></div>
-<div class="line"><a id="l02964" name="l02964"></a><span class="lineno"> 2964</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02965" name="l02965"></a><span class="lineno"> 2965</span><span class="comment">   * (Warning: below and nearby, I make pseudo-code-y leaps, such as saying flying_now_acked_pkts stores</span></div>
-<div class="line"><a id="l02966" name="l02966"></a><span class="lineno"> 2966</span><span class="comment">   * Sent_whens when really it stores order_nums; just bear with me by trusting that it makes the logic</span></div>
-<div class="line"><a id="l02967" name="l02967"></a><span class="lineno"> 2967</span><span class="comment">   * easier to explain, and that the actual structure in code is sufficiently</span></div>
-<div class="line"><a id="l02968" name="l02968"></a><span class="lineno"> 2968</span><span class="comment">   * similar to the wording here to not make a salient difference in practice.)</span></div>
-<div class="line"><a id="l02969" name="l02969"></a><span class="lineno"> 2969</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02970" name="l02970"></a><span class="lineno"> 2970</span><span class="comment">   * Consider the two structures we have now.  snd_flying_pkts_by_when (call</span></div>
-<div class="line"><a id="l02971" name="l02971"></a><span class="lineno"> 2971</span><span class="comment">   * it F) is a collection of Sent_packets, each with Sent_packet::m_acks_after_me, ordered by decreasing</span></div>
-<div class="line"><a id="l02972" name="l02972"></a><span class="lineno"> 2972</span><span class="comment">   * Sent_when.  flying_now_acked_pkts (call it C) is an unordered collection that contains each Sent_when</span></div>
-<div class="line"><a id="l02973" name="l02973"></a><span class="lineno"> 2973</span><span class="comment">   * (i.e., reference to a send-packet attempt) that has been ACKed.  That is, flying_now_acked_pkts tells us</span></div>
-<div class="line"><a id="l02974" name="l02974"></a><span class="lineno"> 2974</span><span class="comment">   * by Sent_when which exact send attempts from the past are acknowledged in this set of accumulated acks.</span></div>
+<div class="line"><a id="l02941" name="l02941"></a><span class="lineno"> 2941</span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a></div>
+<div class="line"><a id="l02942" name="l02942"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a3326b5bdc85b43232f55e2b2ec1dbe60"> 2942</a></span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a3326b5bdc85b43232f55e2b2ec1dbe60">Node::categorize_pkts_as_dropped_on_acks</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
+<div class="line"><a id="l02943" name="l02943"></a><span class="lineno"> 2943</span>                                           <span class="keyword">const</span> boost::unordered_set&lt;Peer_socket::order_num_t&gt;&amp; flying_now_acked_pkts)</div>
+<div class="line"><a id="l02944" name="l02944"></a><span class="lineno"> 2944</span>{</div>
+<div class="line"><a id="l02945" name="l02945"></a><span class="lineno"> 2945</span>  <span class="keyword">using </span>std::priority_queue;</div>
+<div class="line"><a id="l02946" name="l02946"></a><span class="lineno"> 2946</span> </div>
+<div class="line"><a id="l02947" name="l02947"></a><span class="lineno"> 2947</span>  <span class="comment">/* This helper of handle_accumulated_acks() exists to make the latter method briefer/readable, not for code reuse</span></div>
+<div class="line"><a id="l02948" name="l02948"></a><span class="lineno"> 2948</span><span class="comment">   * as of this writing. The background is that once a set of individual acks has been processed in the sense that</span></div>
+<div class="line"><a id="l02949" name="l02949"></a><span class="lineno"> 2949</span><span class="comment">   * sock-&gt;m_snd_flying_pkts* (which tracks In-flight outbound DATA packets) has been updated by removing the</span></div>
+<div class="line"><a id="l02950" name="l02950"></a><span class="lineno"> 2950</span><span class="comment">   * acked packets (they are no longer In-flight), it&#39;s time to also recategorize certain further In-flight</span></div>
+<div class="line"><a id="l02951" name="l02951"></a><span class="lineno"> 2951</span><span class="comment">   * packets as Dropped -- the intuition being that once N packets sent LATER than a given packet P have been</span></div>
+<div class="line"><a id="l02952" name="l02952"></a><span class="lineno"> 2952</span><span class="comment">   * acked, it&#39;s highly probable that P has been Dropped by the network. This method determines the packets to drop</span></div>
+<div class="line"><a id="l02953" name="l02953"></a><span class="lineno"> 2953</span><span class="comment">   * in that fashion.</span></div>
+<div class="line"><a id="l02954" name="l02954"></a><span class="lineno"> 2954</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02955" name="l02955"></a><span class="lineno"> 2955</span><span class="comment">   * Now, as explained below, when ack set S causes packet set P&#39; to be Dropped, this (possibly null) set P&#39;</span></div>
+<div class="line"><a id="l02956" name="l02956"></a><span class="lineno"> 2956</span><span class="comment">   * always has the following form: there is some particular packet P which is the most-recently-sent one</span></div>
+<div class="line"><a id="l02957" name="l02957"></a><span class="lineno"> 2957</span><span class="comment">   * that is in P&#39;; and therefore ALL other In-flight packets sent before P must be dropped too and also are in P&#39;.</span></div>
+<div class="line"><a id="l02958" name="l02958"></a><span class="lineno"> 2958</span><span class="comment">   * Thus P is necessary/sufficient to specify P&#39;.  Thus this method simply finds and returns a thing pointing to P. */</span></div>
+<div class="line"><a id="l02959" name="l02959"></a><span class="lineno"> 2959</span> </div>
+<div class="line"><a id="l02960" name="l02960"></a><span class="lineno"> 2960</span>  <span class="comment">// For brevity and a little speed:</span></div>
+<div class="line"><a id="l02961" name="l02961"></a><span class="lineno"> 2961</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
+<div class="line"><a id="l02962" name="l02962"></a><span class="lineno"> 2962</span> </div>
+<div class="line"><a id="l02963" name="l02963"></a><span class="lineno"> 2963</span>  <span class="comment">/* OK, snd_flying_pkts* has been updated, in that we&#39;ve removed any Sent_packet entries</span></div>
+<div class="line"><a id="l02964" name="l02964"></a><span class="lineno"> 2964</span><span class="comment">   * corresponding to valid acknolwedgments in this ACK.  As promised elsewhere we should also update</span></div>
+<div class="line"><a id="l02965" name="l02965"></a><span class="lineno"> 2965</span><span class="comment">   * the remaining Sent_packets&#39; m_acks_after_me entries and erase any Sent_packets that we consider</span></div>
+<div class="line"><a id="l02966" name="l02966"></a><span class="lineno"> 2966</span><span class="comment">   * Dropped due to too high m_acks_after_me values.  (As in TCP Fast Retransmit/Recovery, an</span></div>
+<div class="line"><a id="l02967" name="l02967"></a><span class="lineno"> 2967</span><span class="comment">   * unacknowledged packet is considered Dropped based on the heuristic that a few packets with</span></div>
+<div class="line"><a id="l02968" name="l02968"></a><span class="lineno"> 2968</span><span class="comment">   * higher sequence numbers have been acknowledged.  Except since we have Sent_when, that should be</span></div>
+<div class="line"><a id="l02969" name="l02969"></a><span class="lineno"> 2969</span><span class="comment">   * even better than using sequence number ordering as TCP would.)</span></div>
+<div class="line"><a id="l02970" name="l02970"></a><span class="lineno"> 2970</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02971" name="l02971"></a><span class="lineno"> 2971</span><span class="comment">   * (Warning: below and nearby, I make pseudo-code-y leaps, such as saying flying_now_acked_pkts stores</span></div>
+<div class="line"><a id="l02972" name="l02972"></a><span class="lineno"> 2972</span><span class="comment">   * Sent_whens when really it stores order_nums; just bear with me by trusting that it makes the logic</span></div>
+<div class="line"><a id="l02973" name="l02973"></a><span class="lineno"> 2973</span><span class="comment">   * easier to explain, and that the actual structure in code is sufficiently</span></div>
+<div class="line"><a id="l02974" name="l02974"></a><span class="lineno"> 2974</span><span class="comment">   * similar to the wording here to not make a salient difference in practice.)</span></div>
 <div class="line"><a id="l02975" name="l02975"></a><span class="lineno"> 2975</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02976" name="l02976"></a><span class="lineno"> 2976</span><span class="comment">   * Even less formally -- just for sanity&#39;s sake -- F are In-flight packets; C are just-acked packets that were</span></div>
-<div class="line"><a id="l02977" name="l02977"></a><span class="lineno"> 2977</span><span class="comment">   * very recently in F.  C may be interleaved among F if viewed in increasing Sent_when order:</span></div>
-<div class="line"><a id="l02978" name="l02978"></a><span class="lineno"> 2978</span><span class="comment">   * e.g., [ F F F F C F C F C C ] (where F represents a still-In-flight send attempt, or an F element;</span></div>
-<div class="line"><a id="l02979" name="l02979"></a><span class="lineno"> 2979</span><span class="comment">   * C a just-acked send attempt, thus a C element; and the order is from earlier/lower Sent_when to</span></div>
-<div class="line"><a id="l02980" name="l02980"></a><span class="lineno"> 2980</span><span class="comment">   * later/higher Sent_when).</span></div>
+<div class="line"><a id="l02976" name="l02976"></a><span class="lineno"> 2976</span><span class="comment">   * Consider the two structures we have now.  snd_flying_pkts_by_when (call</span></div>
+<div class="line"><a id="l02977" name="l02977"></a><span class="lineno"> 2977</span><span class="comment">   * it F) is a collection of Sent_packets, each with Sent_packet::m_acks_after_me, ordered by decreasing</span></div>
+<div class="line"><a id="l02978" name="l02978"></a><span class="lineno"> 2978</span><span class="comment">   * Sent_when.  flying_now_acked_pkts (call it C) is an unordered collection that contains each Sent_when</span></div>
+<div class="line"><a id="l02979" name="l02979"></a><span class="lineno"> 2979</span><span class="comment">   * (i.e., reference to a send-packet attempt) that has been ACKed.  That is, flying_now_acked_pkts tells us</span></div>
+<div class="line"><a id="l02980" name="l02980"></a><span class="lineno"> 2980</span><span class="comment">   * by Sent_when which exact send attempts from the past are acknowledged in this set of accumulated acks.</span></div>
 <div class="line"><a id="l02981" name="l02981"></a><span class="lineno"> 2981</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02982" name="l02982"></a><span class="lineno"> 2982</span><span class="comment">   * Note that, conceptually, the key sets (Sent_when values) in F and C are disjoint,</span></div>
-<div class="line"><a id="l02983" name="l02983"></a><span class="lineno"> 2983</span><span class="comment">   * since each send attempt has a unique Sent_when value (because it at least consists of a unique m_order_num).</span></div>
-<div class="line"><a id="l02984" name="l02984"></a><span class="lineno"> 2984</span><span class="comment">   * How do we correctly yet efficiently increment m_acks_after_me (call it A) for each</span></div>
-<div class="line"><a id="l02985" name="l02985"></a><span class="lineno"> 2985</span><span class="comment">   * element in F to represent the new ackage?  First observe that if F[t].A is incremented by N, then</span></div>
-<div class="line"><a id="l02986" name="l02986"></a><span class="lineno"> 2986</span><span class="comment">   * F[prev(t)].A should be incremented by N PLUS the number of acks for all packets sent at times in range</span></div>
-<div class="line"><a id="l02987" name="l02987"></a><span class="lineno"> 2987</span><span class="comment">   * (prev(t), t), where prev(t) is the element of C with the next lower (ealier) Sent_when.</span></div>
-<div class="line"><a id="l02988" name="l02988"></a><span class="lineno"> 2988</span><span class="comment">   * Consider the example scoreboard above, [ F F F F C F# C F* C C ].  F*.A is incremented by 2, because</span></div>
-<div class="line"><a id="l02989" name="l02989"></a><span class="lineno"> 2989</span><span class="comment">   * plainly there are two Cs after it.  Therefore, the preceding F, which is F#,</span></div>
-<div class="line"><a id="l02990" name="l02990"></a><span class="lineno"> 2990</span><span class="comment">   * is also incremented by 2; plus another 1, because there is another C (recall, simply another acknowledgment)</span></div>
-<div class="line"><a id="l02991" name="l02991"></a><span class="lineno"> 2991</span><span class="comment">   * between F# and F*.  And so it goes for all the Fs.  Side/sanity note: The range is (prev[t], t), not</span></div>
-<div class="line"><a id="l02992" name="l02992"></a><span class="lineno"> 2992</span><span class="comment">   * [prev(t), t), simply because F and C are disjoint; and prev(t) by definition is in F (hence not in C, hence</span></div>
-<div class="line"><a id="l02993" name="l02993"></a><span class="lineno"> 2993</span><span class="comment">   * no ack for that seq. #).</span></div>
-<div class="line"><a id="l02994" name="l02994"></a><span class="lineno"> 2994</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02995" name="l02995"></a><span class="lineno"> 2995</span><span class="comment">   * This suggests a simple inductive algorithm, wherein the latest F element&#39;s F[t].A is incremented by I, which</span></div>
-<div class="line"><a id="l02996" name="l02996"></a><span class="lineno"> 2996</span><span class="comment">   * is the count of C elements with Sent_when &gt; t; memorize I; now for each progressively older F[t],</span></div>
-<div class="line"><a id="l02997" name="l02997"></a><span class="lineno"> 2997</span><span class="comment">   * count C elements in (t, next(t)) and increment F[T].A by I += &lt;that count&gt;.  Repeat until all Fs incremented.</span></div>
-<div class="line"><a id="l02998" name="l02998"></a><span class="lineno"> 2998</span><span class="comment">   * Ultimately I = # of new valid, acknowledgments.  (Recall: scoreboard cannot begin with any Cs, [C C ... ], as</span></div>
-<div class="line"><a id="l02999" name="l02999"></a><span class="lineno"> 2999</span><span class="comment">   * such a C would be acking a non-In-flight send attempt, so a dupe, and we specifically eliminate dupes from</span></div>
-<div class="line"><a id="l03000" name="l03000"></a><span class="lineno"> 3000</span><span class="comment">   * consideration before inserting into C.)  So that&#39;s O(F.size()) increment operations.</span></div>
-<div class="line"><a id="l03001" name="l03001"></a><span class="lineno"> 3001</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03002" name="l03002"></a><span class="lineno"> 3002</span><span class="comment">   * OK, but how do we get this &quot;count of acks between t and next(t)&quot;?  Let t be the last element of</span></div>
-<div class="line"><a id="l03003" name="l03003"></a><span class="lineno"> 3003</span><span class="comment">   * F.  For it, that count is the count of all keys &gt; t in C (i.e., the total # of acks for all</span></div>
-<div class="line"><a id="l03004" name="l03004"></a><span class="lineno"> 3004</span><span class="comment">   * packets sent after t).  Let the lowest such key (Sent_when value) be `s`. Now let t&#39; = prev(t) as before.</span></div>
-<div class="line"><a id="l03005" name="l03005"></a><span class="lineno"> 3005</span><span class="comment">   * For t&#39;, the count of acks sent in (t&#39;, t) is the count of all elements in C with keys</span></div>
-<div class="line"><a id="l03006" name="l03006"></a><span class="lineno"> 3006</span><span class="comment">   * in (s&#39;, s), where s&#39; is again the lowest key &gt; t&#39;. Having counted that, set s = s, and repeat for each key t&#39; of F.</span></div>
+<div class="line"><a id="l02982" name="l02982"></a><span class="lineno"> 2982</span><span class="comment">   * Even less formally -- just for sanity&#39;s sake -- F are In-flight packets; C are just-acked packets that were</span></div>
+<div class="line"><a id="l02983" name="l02983"></a><span class="lineno"> 2983</span><span class="comment">   * very recently in F.  C may be interleaved among F if viewed in increasing Sent_when order:</span></div>
+<div class="line"><a id="l02984" name="l02984"></a><span class="lineno"> 2984</span><span class="comment">   * e.g., [ F F F F C F C F C C ] (where F represents a still-In-flight send attempt, or an F element;</span></div>
+<div class="line"><a id="l02985" name="l02985"></a><span class="lineno"> 2985</span><span class="comment">   * C a just-acked send attempt, thus a C element; and the order is from earlier/lower Sent_when to</span></div>
+<div class="line"><a id="l02986" name="l02986"></a><span class="lineno"> 2986</span><span class="comment">   * later/higher Sent_when).</span></div>
+<div class="line"><a id="l02987" name="l02987"></a><span class="lineno"> 2987</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02988" name="l02988"></a><span class="lineno"> 2988</span><span class="comment">   * Note that, conceptually, the key sets (Sent_when values) in F and C are disjoint,</span></div>
+<div class="line"><a id="l02989" name="l02989"></a><span class="lineno"> 2989</span><span class="comment">   * since each send attempt has a unique Sent_when value (because it at least consists of a unique m_order_num).</span></div>
+<div class="line"><a id="l02990" name="l02990"></a><span class="lineno"> 2990</span><span class="comment">   * How do we correctly yet efficiently increment m_acks_after_me (call it A) for each</span></div>
+<div class="line"><a id="l02991" name="l02991"></a><span class="lineno"> 2991</span><span class="comment">   * element in F to represent the new ackage?  First observe that if F[t].A is incremented by N, then</span></div>
+<div class="line"><a id="l02992" name="l02992"></a><span class="lineno"> 2992</span><span class="comment">   * F[prev(t)].A should be incremented by N PLUS the number of acks for all packets sent at times in range</span></div>
+<div class="line"><a id="l02993" name="l02993"></a><span class="lineno"> 2993</span><span class="comment">   * (prev(t), t), where prev(t) is the element of C with the next lower (ealier) Sent_when.</span></div>
+<div class="line"><a id="l02994" name="l02994"></a><span class="lineno"> 2994</span><span class="comment">   * Consider the example scoreboard above, [ F F F F C F# C F* C C ].  F*.A is incremented by 2, because</span></div>
+<div class="line"><a id="l02995" name="l02995"></a><span class="lineno"> 2995</span><span class="comment">   * plainly there are two Cs after it.  Therefore, the preceding F, which is F#,</span></div>
+<div class="line"><a id="l02996" name="l02996"></a><span class="lineno"> 2996</span><span class="comment">   * is also incremented by 2; plus another 1, because there is another C (recall, simply another acknowledgment)</span></div>
+<div class="line"><a id="l02997" name="l02997"></a><span class="lineno"> 2997</span><span class="comment">   * between F# and F*.  And so it goes for all the Fs.  Side/sanity note: The range is (prev[t], t), not</span></div>
+<div class="line"><a id="l02998" name="l02998"></a><span class="lineno"> 2998</span><span class="comment">   * [prev(t), t), simply because F and C are disjoint; and prev(t) by definition is in F (hence not in C, hence</span></div>
+<div class="line"><a id="l02999" name="l02999"></a><span class="lineno"> 2999</span><span class="comment">   * no ack for that seq. #).</span></div>
+<div class="line"><a id="l03000" name="l03000"></a><span class="lineno"> 3000</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03001" name="l03001"></a><span class="lineno"> 3001</span><span class="comment">   * This suggests a simple inductive algorithm, wherein the latest F element&#39;s F[t].A is incremented by I, which</span></div>
+<div class="line"><a id="l03002" name="l03002"></a><span class="lineno"> 3002</span><span class="comment">   * is the count of C elements with Sent_when &gt; t; memorize I; now for each progressively older F[t],</span></div>
+<div class="line"><a id="l03003" name="l03003"></a><span class="lineno"> 3003</span><span class="comment">   * count C elements in (t, next(t)) and increment F[T].A by I += &lt;that count&gt;.  Repeat until all Fs incremented.</span></div>
+<div class="line"><a id="l03004" name="l03004"></a><span class="lineno"> 3004</span><span class="comment">   * Ultimately I = # of new valid, acknowledgments.  (Recall: scoreboard cannot begin with any Cs, [C C ... ], as</span></div>
+<div class="line"><a id="l03005" name="l03005"></a><span class="lineno"> 3005</span><span class="comment">   * such a C would be acking a non-In-flight send attempt, so a dupe, and we specifically eliminate dupes from</span></div>
+<div class="line"><a id="l03006" name="l03006"></a><span class="lineno"> 3006</span><span class="comment">   * consideration before inserting into C.)  So that&#39;s O(F.size()) increment operations.</span></div>
 <div class="line"><a id="l03007" name="l03007"></a><span class="lineno"> 3007</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03008" name="l03008"></a><span class="lineno"> 3008</span><span class="comment">   * Of course, for that to be practical, C would need to be sorted by Sent_when.  Since in reality it&#39;s not sorted,</span></div>
-<div class="line"><a id="l03009" name="l03009"></a><span class="lineno"> 3009</span><span class="comment">   * we could first sort it in O(k log k) operations, worst-case, k = C.size().  More convenient, however, is to</span></div>
-<div class="line"><a id="l03010" name="l03010"></a><span class="lineno"> 3010</span><span class="comment">   * construct a priority queue (heap) from C; then keep popping the Sent_whens down to and</span></div>
-<div class="line"><a id="l03011" name="l03011"></a><span class="lineno"> 3011</span><span class="comment">   * including s at each step.  That&#39;s O(k) to make the heap and O(k log k) total time spent</span></div>
-<div class="line"><a id="l03012" name="l03012"></a><span class="lineno"> 3012</span><span class="comment">   * popping it.</span></div>
+<div class="line"><a id="l03008" name="l03008"></a><span class="lineno"> 3008</span><span class="comment">   * OK, but how do we get this &quot;count of acks between t and next(t)&quot;?  Let t be the last element of</span></div>
+<div class="line"><a id="l03009" name="l03009"></a><span class="lineno"> 3009</span><span class="comment">   * F.  For it, that count is the count of all keys &gt; t in C (i.e., the total # of acks for all</span></div>
+<div class="line"><a id="l03010" name="l03010"></a><span class="lineno"> 3010</span><span class="comment">   * packets sent after t).  Let the lowest such key (Sent_when value) be `s`. Now let t&#39; = prev(t) as before.</span></div>
+<div class="line"><a id="l03011" name="l03011"></a><span class="lineno"> 3011</span><span class="comment">   * For t&#39;, the count of acks sent in (t&#39;, t) is the count of all elements in C with keys</span></div>
+<div class="line"><a id="l03012" name="l03012"></a><span class="lineno"> 3012</span><span class="comment">   * in (s&#39;, s), where s&#39; is again the lowest key &gt; t&#39;. Having counted that, set s = s, and repeat for each key t&#39; of F.</span></div>
 <div class="line"><a id="l03013" name="l03013"></a><span class="lineno"> 3013</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03014" name="l03014"></a><span class="lineno"> 3014</span><span class="comment">   * The above explanation strikes me as somewhat cryptic, but hopefully the code will clarify it; I was just</span></div>
-<div class="line"><a id="l03015" name="l03015"></a><span class="lineno"> 3015</span><span class="comment">   * trying to explain why the code works. */</span></div>
-<div class="line"><a id="l03016" name="l03016"></a><span class="lineno"> 3016</span> </div>
-<div class="line"><a id="l03017" name="l03017"></a><span class="lineno"> 3017</span>  <span class="comment">/* Make heap out of flying_now_acked_pkts; top()/pop() will return the element with the highest (latest) Sent_when.</span></div>
-<div class="line"><a id="l03018" name="l03018"></a><span class="lineno"> 3018</span><span class="comment">   * Just store the Sent_when values directly in the heap; std::pair::operator&lt;() will do</span></div>
-<div class="line"><a id="l03019" name="l03019"></a><span class="lineno"> 3019</span><span class="comment">   * the right thing since no element&#39;s Sent_when equals another element&#39;s Sent_when (they were</span></div>
-<div class="line"><a id="l03020" name="l03020"></a><span class="lineno"> 3020</span><span class="comment">   * stored in a uniquely-keyed dictionary in the first place).</span></div>
-<div class="line"><a id="l03021" name="l03021"></a><span class="lineno"> 3021</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03022" name="l03022"></a><span class="lineno"> 3022</span><span class="comment">   * Let cur_sent_pkt be the element of snd_flying_pkts_by_sent_when we&#39;re currently</span></div>
-<div class="line"><a id="l03023" name="l03023"></a><span class="lineno"> 3023</span><span class="comment">   * considering, and it starts at F.newest() and progresses accordingly through F.</span></div>
-<div class="line"><a id="l03024" name="l03024"></a><span class="lineno"> 3024</span><span class="comment">   * Then, invariant: high_ack_count_q contains the acks for all send attempts P where</span></div>
-<div class="line"><a id="l03025" name="l03025"></a><span class="lineno"> 3025</span><span class="comment">   * P.m_sent_when &lt; cur_sent_pkt.m_sent_when. In particular, P.m_sent_when.top &lt; cur_sent_pkt.m_sent_when. */</span></div>
-<div class="line"><a id="l03026" name="l03026"></a><span class="lineno"> 3026</span>  priority_queue&lt;Peer_socket::order_num_t&gt;</div>
-<div class="line"><a id="l03027" name="l03027"></a><span class="lineno"> 3027</span>    high_ack_count_q(flying_now_acked_pkts.begin(), flying_now_acked_pkts.end());</div>
-<div class="line"><a id="l03028" name="l03028"></a><span class="lineno"> 3028</span> </div>
-<div class="line"><a id="l03029" name="l03029"></a><span class="lineno"> 3029</span>  <span class="comment">// Invariant: this will be the m_acks_after_me increment applied to the just-considered packet in snd_flying_pkts*.</span></div>
-<div class="line"><a id="l03030" name="l03030"></a><span class="lineno"> 3030</span>  <span class="keyword">using </span>ack_count_t = <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2">Peer_socket::Sent_packet::ack_count_t</a>;</div>
-<div class="line"><a id="l03031" name="l03031"></a><span class="lineno"> 3031</span>  ack_count_t ack_increment_after_me = 0;</div>
-<div class="line"><a id="l03032" name="l03032"></a><span class="lineno"> 3032</span> </div>
-<div class="line"><a id="l03033" name="l03033"></a><span class="lineno"> 3033</span>  <span class="comment">// As explained above, start with the first (latest send time) unacked packet and go forward (earlier and earlier).</span></div>
-<div class="line"><a id="l03034" name="l03034"></a><span class="lineno"> 3034</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a> last_dropped_pkt_it;</div>
-<div class="line"><a id="l03035" name="l03035"></a><span class="lineno"> 3035</span>  <span class="keywordflow">for</span> (last_dropped_pkt_it = snd_flying_pkts_by_when.newest();</div>
-<div class="line"><a id="l03036" name="l03036"></a><span class="lineno"> 3036</span>       last_dropped_pkt_it != snd_flying_pkts_by_when.past_oldest();</div>
-<div class="line"><a id="l03037" name="l03037"></a><span class="lineno"> 3037</span>       ++last_dropped_pkt_it) <span class="comment">// Up to k repetitions.</span></div>
-<div class="line"><a id="l03038" name="l03038"></a><span class="lineno"> 3038</span>  {</div>
-<div class="line"><a id="l03039" name="l03039"></a><span class="lineno"> 3039</span>    <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">Peer_socket::Sent_packet</a>&amp; cur_sent_pkt = *(last_dropped_pkt_it-&gt;second);</div>
-<div class="line"><a id="l03040" name="l03040"></a><span class="lineno"> 3040</span>    <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Peer_socket::Sent_packet::Sent_when</a>&amp; cur_pkt_sent_when = cur_sent_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">m_sent_when</a>.back();</div>
-<div class="line"><a id="l03041" name="l03041"></a><span class="lineno"> 3041</span> </div>
-<div class="line"><a id="l03042" name="l03042"></a><span class="lineno"> 3042</span>    <span class="comment">/* We will increment cur_sent_pkt.m_acks_after_me by ack_increment_after_me + X, where X is</span></div>
-<div class="line"><a id="l03043" name="l03043"></a><span class="lineno"> 3043</span><span class="comment">     * the total number of acks for packets with send times between cur_pkt_sent_when and the</span></div>
-<div class="line"><a id="l03044" name="l03044"></a><span class="lineno"> 3044</span><span class="comment">     * cur_pkt_sent_when in the last loop iteration (or infinity if this is the first loop</span></div>
-<div class="line"><a id="l03045" name="l03045"></a><span class="lineno"> 3045</span><span class="comment">     * iteration).  The high_ack_count_q invariant we maintain is that high_ack_count_q holds the</span></div>
-<div class="line"><a id="l03046" name="l03046"></a><span class="lineno"> 3046</span><span class="comment">     * ack counts for all packets with Sent_when values EXCEPT those &gt;= the previous</span></div>
-<div class="line"><a id="l03047" name="l03047"></a><span class="lineno"> 3047</span><span class="comment">     * iteration&#39;s cur_pkt_sent_when.  Therefore, we need only find all elements of high_ack_count_q</span></div>
-<div class="line"><a id="l03048" name="l03048"></a><span class="lineno"> 3048</span><span class="comment">     * whose Sent_whens are &gt; our cur_pkt_sent_when.  Since high_ack_count_q.top() is always the ack</span></div>
-<div class="line"><a id="l03049" name="l03049"></a><span class="lineno"> 3049</span><span class="comment">     * count with the highest sent_when in that structure (priority queue), we just pop and sum</span></div>
-<div class="line"><a id="l03050" name="l03050"></a><span class="lineno"> 3050</span><span class="comment">     * until high_ack_count_q.top() &lt; cur_pkt_sent_when. */</span></div>
-<div class="line"><a id="l03051" name="l03051"></a><span class="lineno"> 3051</span> </div>
-<div class="line"><a id="l03052" name="l03052"></a><span class="lineno"> 3052</span>    <span class="comment">// We&#39;ve just assigned cur_sent_pkt, breaking invariant; pop until it holds again.</span></div>
-<div class="line"><a id="l03053" name="l03053"></a><span class="lineno"> 3053</span>    <span class="keywordflow">while</span> ((!high_ack_count_q.empty()) &amp;&amp;</div>
-<div class="line"><a id="l03054" name="l03054"></a><span class="lineno"> 3054</span>           <span class="comment">// Compare order numbers -- they are always unique.</span></div>
-<div class="line"><a id="l03055" name="l03055"></a><span class="lineno"> 3055</span>           (high_ack_count_q.top() &gt; cur_pkt_sent_when.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">m_order_num</a>))</div>
-<div class="line"><a id="l03056" name="l03056"></a><span class="lineno"> 3056</span>    {</div>
-<div class="line"><a id="l03057" name="l03057"></a><span class="lineno"> 3057</span>      <span class="comment">// Found acked packet with sent_when &gt; cur_pkt_sent_when (but &lt; previous iteration&#39;s cur_pkt_sent_when).</span></div>
-<div class="line"><a id="l03058" name="l03058"></a><span class="lineno"> 3058</span>      ++ack_increment_after_me; <span class="comment">// So add that packet&#39;s ack.</span></div>
-<div class="line"><a id="l03059" name="l03059"></a><span class="lineno"> 3059</span> </div>
-<div class="line"><a id="l03060" name="l03060"></a><span class="lineno"> 3060</span>      <span class="comment">// And remove it, bringing the next highest entry to the top.  O(log k).</span></div>
-<div class="line"><a id="l03061" name="l03061"></a><span class="lineno"> 3061</span>      high_ack_count_q.pop(); <span class="comment">// Note this maintains the invariant that defines high_ack_count_q.</span></div>
-<div class="line"><a id="l03062" name="l03062"></a><span class="lineno"> 3062</span>    }</div>
-<div class="line"><a id="l03063" name="l03063"></a><span class="lineno"> 3063</span>    <span class="comment">// Note we&#39;ve maintained the invariant defining ack_increment_after_me.</span></div>
-<div class="line"><a id="l03064" name="l03064"></a><span class="lineno"> 3064</span> </div>
-<div class="line"><a id="l03065" name="l03065"></a><span class="lineno"> 3065</span>    <span class="comment">// Hence this many more acks for packets after us have occurred within this ack set.</span></div>
-<div class="line"><a id="l03066" name="l03066"></a><span class="lineno"> 3066</span>    cur_sent_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa">m_acks_after_me</a> += ack_increment_after_me;</div>
-<div class="line"><a id="l03067" name="l03067"></a><span class="lineno"> 3067</span> </div>
-<div class="line"><a id="l03068" name="l03068"></a><span class="lineno"> 3068</span>    <span class="keywordflow">if</span> (cur_sent_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa">m_acks_after_me</a> &gt; S_MAX_LATER_ACKS_BEFORE_CONSIDERING_DROPPED)</div>
-<div class="line"><a id="l03069" name="l03069"></a><span class="lineno"> 3069</span>    {</div>
-<div class="line"><a id="l03070" name="l03070"></a><span class="lineno"> 3070</span>      <span class="comment">/* Ah ha!  For this packet we&#39;ve exceeded the limit -- we will consider it Dropped.  What</span></div>
-<div class="line"><a id="l03071" name="l03071"></a><span class="lineno"> 3071</span><span class="comment">       * about the next (meaning, earlier-sent) unacknowledged packets?  Observe that packets with</span></div>
-<div class="line"><a id="l03072" name="l03072"></a><span class="lineno"> 3072</span><span class="comment">       * earlier send times MUST (if we were to continue the loop in this manner) end up with</span></div>
-<div class="line"><a id="l03073" name="l03073"></a><span class="lineno"> 3073</span><span class="comment">       * equal or larger cur_sent_pkt.m_acks_after_me.  (Intuitively: any acknowledgment after</span></div>
-<div class="line"><a id="l03074" name="l03074"></a><span class="lineno"> 3074</span><span class="comment">       * packet P is also after any packet preceding P in the sent_when ordering.)  Therefore, we</span></div>
-<div class="line"><a id="l03075" name="l03075"></a><span class="lineno"> 3075</span><span class="comment">       * can break out of the loop and consider Dropped ALL packets from last_dropped_pkt_it to</span></div>
-<div class="line"><a id="l03076" name="l03076"></a><span class="lineno"> 3076</span><span class="comment">       * snd_flying_pkts_by_when.past_oldest().  Yay! */</span></div>
-<div class="line"><a id="l03077" name="l03077"></a><span class="lineno"> 3077</span> </div>
-<div class="line"><a id="l03078" name="l03078"></a><span class="lineno"> 3078</span>      <span class="keyword">auto</span> <span class="keyword">const</span> logger_ptr = <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>();</div>
-<div class="line"><a id="l03079" name="l03079"></a><span class="lineno"> 3079</span>      <span class="keywordflow">if</span> (logger_ptr &amp;&amp; logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">log::Sev::S_TRACE</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>()))</div>
-<div class="line"><a id="l03080" name="l03080"></a><span class="lineno"> 3080</span>      {</div>
-<div class="line"><a id="l03081" name="l03081"></a><span class="lineno"> 3081</span>        <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> cur_pkt_seq_num, cur_pkt_seq_num_end;</div>
-<div class="line"><a id="l03082" name="l03082"></a><span class="lineno"> 3082</span>        get_seq_num_range(last_dropped_pkt_it, &amp;cur_pkt_seq_num, &amp;cur_pkt_seq_num_end);</div>
+<div class="line"><a id="l03014" name="l03014"></a><span class="lineno"> 3014</span><span class="comment">   * Of course, for that to be practical, C would need to be sorted by Sent_when.  Since in reality it&#39;s not sorted,</span></div>
+<div class="line"><a id="l03015" name="l03015"></a><span class="lineno"> 3015</span><span class="comment">   * we could first sort it in O(k log k) operations, worst-case, k = C.size().  More convenient, however, is to</span></div>
+<div class="line"><a id="l03016" name="l03016"></a><span class="lineno"> 3016</span><span class="comment">   * construct a priority queue (heap) from C; then keep popping the Sent_whens down to and</span></div>
+<div class="line"><a id="l03017" name="l03017"></a><span class="lineno"> 3017</span><span class="comment">   * including s at each step.  That&#39;s O(k) to make the heap and O(k log k) total time spent</span></div>
+<div class="line"><a id="l03018" name="l03018"></a><span class="lineno"> 3018</span><span class="comment">   * popping it.</span></div>
+<div class="line"><a id="l03019" name="l03019"></a><span class="lineno"> 3019</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03020" name="l03020"></a><span class="lineno"> 3020</span><span class="comment">   * The above explanation strikes me as somewhat cryptic, but hopefully the code will clarify it; I was just</span></div>
+<div class="line"><a id="l03021" name="l03021"></a><span class="lineno"> 3021</span><span class="comment">   * trying to explain why the code works. */</span></div>
+<div class="line"><a id="l03022" name="l03022"></a><span class="lineno"> 3022</span> </div>
+<div class="line"><a id="l03023" name="l03023"></a><span class="lineno"> 3023</span>  <span class="comment">/* Make heap out of flying_now_acked_pkts; top()/pop() will return the element with the highest (latest) Sent_when.</span></div>
+<div class="line"><a id="l03024" name="l03024"></a><span class="lineno"> 3024</span><span class="comment">   * Just store the Sent_when values directly in the heap; std::pair::operator&lt;() will do</span></div>
+<div class="line"><a id="l03025" name="l03025"></a><span class="lineno"> 3025</span><span class="comment">   * the right thing since no element&#39;s Sent_when equals another element&#39;s Sent_when (they were</span></div>
+<div class="line"><a id="l03026" name="l03026"></a><span class="lineno"> 3026</span><span class="comment">   * stored in a uniquely-keyed dictionary in the first place).</span></div>
+<div class="line"><a id="l03027" name="l03027"></a><span class="lineno"> 3027</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03028" name="l03028"></a><span class="lineno"> 3028</span><span class="comment">   * Let cur_sent_pkt be the element of snd_flying_pkts_by_sent_when we&#39;re currently</span></div>
+<div class="line"><a id="l03029" name="l03029"></a><span class="lineno"> 3029</span><span class="comment">   * considering, and it starts at F.newest() and progresses accordingly through F.</span></div>
+<div class="line"><a id="l03030" name="l03030"></a><span class="lineno"> 3030</span><span class="comment">   * Then, invariant: high_ack_count_q contains the acks for all send attempts P where</span></div>
+<div class="line"><a id="l03031" name="l03031"></a><span class="lineno"> 3031</span><span class="comment">   * P.m_sent_when &lt; cur_sent_pkt.m_sent_when. In particular, P.m_sent_when.top &lt; cur_sent_pkt.m_sent_when. */</span></div>
+<div class="line"><a id="l03032" name="l03032"></a><span class="lineno"> 3032</span>  priority_queue&lt;Peer_socket::order_num_t&gt;</div>
+<div class="line"><a id="l03033" name="l03033"></a><span class="lineno"> 3033</span>    high_ack_count_q(flying_now_acked_pkts.begin(), flying_now_acked_pkts.end());</div>
+<div class="line"><a id="l03034" name="l03034"></a><span class="lineno"> 3034</span> </div>
+<div class="line"><a id="l03035" name="l03035"></a><span class="lineno"> 3035</span>  <span class="comment">// Invariant: this will be the m_acks_after_me increment applied to the just-considered packet in snd_flying_pkts*.</span></div>
+<div class="line"><a id="l03036" name="l03036"></a><span class="lineno"> 3036</span>  <span class="keyword">using </span>ack_count_t = <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2">Peer_socket::Sent_packet::ack_count_t</a>;</div>
+<div class="line"><a id="l03037" name="l03037"></a><span class="lineno"> 3037</span>  ack_count_t ack_increment_after_me = 0;</div>
+<div class="line"><a id="l03038" name="l03038"></a><span class="lineno"> 3038</span> </div>
+<div class="line"><a id="l03039" name="l03039"></a><span class="lineno"> 3039</span>  <span class="comment">// As explained above, start with the first (latest send time) unacked packet and go forward (earlier and earlier).</span></div>
+<div class="line"><a id="l03040" name="l03040"></a><span class="lineno"> 3040</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a> last_dropped_pkt_it;</div>
+<div class="line"><a id="l03041" name="l03041"></a><span class="lineno"> 3041</span>  <span class="keywordflow">for</span> (last_dropped_pkt_it = snd_flying_pkts_by_when.newest();</div>
+<div class="line"><a id="l03042" name="l03042"></a><span class="lineno"> 3042</span>       last_dropped_pkt_it != snd_flying_pkts_by_when.past_oldest();</div>
+<div class="line"><a id="l03043" name="l03043"></a><span class="lineno"> 3043</span>       ++last_dropped_pkt_it) <span class="comment">// Up to k repetitions.</span></div>
+<div class="line"><a id="l03044" name="l03044"></a><span class="lineno"> 3044</span>  {</div>
+<div class="line"><a id="l03045" name="l03045"></a><span class="lineno"> 3045</span>    <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">Peer_socket::Sent_packet</a>&amp; cur_sent_pkt = *(last_dropped_pkt_it-&gt;second);</div>
+<div class="line"><a id="l03046" name="l03046"></a><span class="lineno"> 3046</span>    <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Peer_socket::Sent_packet::Sent_when</a>&amp; cur_pkt_sent_when = cur_sent_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">m_sent_when</a>.back();</div>
+<div class="line"><a id="l03047" name="l03047"></a><span class="lineno"> 3047</span> </div>
+<div class="line"><a id="l03048" name="l03048"></a><span class="lineno"> 3048</span>    <span class="comment">/* We will increment cur_sent_pkt.m_acks_after_me by ack_increment_after_me + X, where X is</span></div>
+<div class="line"><a id="l03049" name="l03049"></a><span class="lineno"> 3049</span><span class="comment">     * the total number of acks for packets with send times between cur_pkt_sent_when and the</span></div>
+<div class="line"><a id="l03050" name="l03050"></a><span class="lineno"> 3050</span><span class="comment">     * cur_pkt_sent_when in the last loop iteration (or infinity if this is the first loop</span></div>
+<div class="line"><a id="l03051" name="l03051"></a><span class="lineno"> 3051</span><span class="comment">     * iteration).  The high_ack_count_q invariant we maintain is that high_ack_count_q holds the</span></div>
+<div class="line"><a id="l03052" name="l03052"></a><span class="lineno"> 3052</span><span class="comment">     * ack counts for all packets with Sent_when values EXCEPT those &gt;= the previous</span></div>
+<div class="line"><a id="l03053" name="l03053"></a><span class="lineno"> 3053</span><span class="comment">     * iteration&#39;s cur_pkt_sent_when.  Therefore, we need only find all elements of high_ack_count_q</span></div>
+<div class="line"><a id="l03054" name="l03054"></a><span class="lineno"> 3054</span><span class="comment">     * whose Sent_whens are &gt; our cur_pkt_sent_when.  Since high_ack_count_q.top() is always the ack</span></div>
+<div class="line"><a id="l03055" name="l03055"></a><span class="lineno"> 3055</span><span class="comment">     * count with the highest sent_when in that structure (priority queue), we just pop and sum</span></div>
+<div class="line"><a id="l03056" name="l03056"></a><span class="lineno"> 3056</span><span class="comment">     * until high_ack_count_q.top() &lt; cur_pkt_sent_when. */</span></div>
+<div class="line"><a id="l03057" name="l03057"></a><span class="lineno"> 3057</span> </div>
+<div class="line"><a id="l03058" name="l03058"></a><span class="lineno"> 3058</span>    <span class="comment">// We&#39;ve just assigned cur_sent_pkt, breaking invariant; pop until it holds again.</span></div>
+<div class="line"><a id="l03059" name="l03059"></a><span class="lineno"> 3059</span>    <span class="keywordflow">while</span> ((!high_ack_count_q.empty()) &amp;&amp;</div>
+<div class="line"><a id="l03060" name="l03060"></a><span class="lineno"> 3060</span>           <span class="comment">// Compare order numbers -- they are always unique.</span></div>
+<div class="line"><a id="l03061" name="l03061"></a><span class="lineno"> 3061</span>           (high_ack_count_q.top() &gt; cur_pkt_sent_when.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">m_order_num</a>))</div>
+<div class="line"><a id="l03062" name="l03062"></a><span class="lineno"> 3062</span>    {</div>
+<div class="line"><a id="l03063" name="l03063"></a><span class="lineno"> 3063</span>      <span class="comment">// Found acked packet with sent_when &gt; cur_pkt_sent_when (but &lt; previous iteration&#39;s cur_pkt_sent_when).</span></div>
+<div class="line"><a id="l03064" name="l03064"></a><span class="lineno"> 3064</span>      ++ack_increment_after_me; <span class="comment">// So add that packet&#39;s ack.</span></div>
+<div class="line"><a id="l03065" name="l03065"></a><span class="lineno"> 3065</span> </div>
+<div class="line"><a id="l03066" name="l03066"></a><span class="lineno"> 3066</span>      <span class="comment">// And remove it, bringing the next highest entry to the top.  O(log k).</span></div>
+<div class="line"><a id="l03067" name="l03067"></a><span class="lineno"> 3067</span>      high_ack_count_q.pop(); <span class="comment">// Note this maintains the invariant that defines high_ack_count_q.</span></div>
+<div class="line"><a id="l03068" name="l03068"></a><span class="lineno"> 3068</span>    }</div>
+<div class="line"><a id="l03069" name="l03069"></a><span class="lineno"> 3069</span>    <span class="comment">// Note we&#39;ve maintained the invariant defining ack_increment_after_me.</span></div>
+<div class="line"><a id="l03070" name="l03070"></a><span class="lineno"> 3070</span> </div>
+<div class="line"><a id="l03071" name="l03071"></a><span class="lineno"> 3071</span>    <span class="comment">// Hence this many more acks for packets after us have occurred within this ack set.</span></div>
+<div class="line"><a id="l03072" name="l03072"></a><span class="lineno"> 3072</span>    cur_sent_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa">m_acks_after_me</a> += ack_increment_after_me;</div>
+<div class="line"><a id="l03073" name="l03073"></a><span class="lineno"> 3073</span> </div>
+<div class="line"><a id="l03074" name="l03074"></a><span class="lineno"> 3074</span>    <span class="keywordflow">if</span> (cur_sent_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa">m_acks_after_me</a> &gt; S_MAX_LATER_ACKS_BEFORE_CONSIDERING_DROPPED)</div>
+<div class="line"><a id="l03075" name="l03075"></a><span class="lineno"> 3075</span>    {</div>
+<div class="line"><a id="l03076" name="l03076"></a><span class="lineno"> 3076</span>      <span class="comment">/* Ah ha!  For this packet we&#39;ve exceeded the limit -- we will consider it Dropped.  What</span></div>
+<div class="line"><a id="l03077" name="l03077"></a><span class="lineno"> 3077</span><span class="comment">       * about the next (meaning, earlier-sent) unacknowledged packets?  Observe that packets with</span></div>
+<div class="line"><a id="l03078" name="l03078"></a><span class="lineno"> 3078</span><span class="comment">       * earlier send times MUST (if we were to continue the loop in this manner) end up with</span></div>
+<div class="line"><a id="l03079" name="l03079"></a><span class="lineno"> 3079</span><span class="comment">       * equal or larger cur_sent_pkt.m_acks_after_me.  (Intuitively: any acknowledgment after</span></div>
+<div class="line"><a id="l03080" name="l03080"></a><span class="lineno"> 3080</span><span class="comment">       * packet P is also after any packet preceding P in the sent_when ordering.)  Therefore, we</span></div>
+<div class="line"><a id="l03081" name="l03081"></a><span class="lineno"> 3081</span><span class="comment">       * can break out of the loop and consider Dropped ALL packets from last_dropped_pkt_it to</span></div>
+<div class="line"><a id="l03082" name="l03082"></a><span class="lineno"> 3082</span><span class="comment">       * snd_flying_pkts_by_when.past_oldest().  Yay! */</span></div>
 <div class="line"><a id="l03083" name="l03083"></a><span class="lineno"> 3083</span> </div>
-<div class="line"><a id="l03084" name="l03084"></a><span class="lineno"> 3084</span>        <a class="code hl_define" href="log_8hpp.html#a6b3b2cd7ddabf90a7c6ccd104a042cc6">FLOW_LOG_TRACE_WITHOUT_CHECKING</a></div>
-<div class="line"><a id="l03085" name="l03085"></a><span class="lineno"> 3085</span>          (<span class="stringliteral">&quot;Unacknowledged packet [&quot;</span> &lt;&lt; cur_pkt_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; cur_pkt_seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l03086" name="l03086"></a><span class="lineno"> 3086</span>           <span class="stringliteral">&quot;order_num [&quot;</span> &lt;&lt; cur_pkt_sent_when.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">m_order_num</a> &lt;&lt; <span class="stringliteral">&quot;] has &quot;</span></div>
-<div class="line"><a id="l03087" name="l03087"></a><span class="lineno"> 3087</span>           <span class="stringliteral">&quot;had [&quot;</span> &lt;&lt; cur_sent_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa">m_acks_after_me</a> &lt;&lt; <span class="stringliteral">&quot;] acknowledgments &quot;</span></div>
-<div class="line"><a id="l03088" name="l03088"></a><span class="lineno"> 3088</span>           <span class="stringliteral">&quot;for later packets; considering it and &quot;</span></div>
-<div class="line"><a id="l03089" name="l03089"></a><span class="lineno"> 3089</span>           <span class="stringliteral">&quot;all unacknowledged packets sent earlier as Dropped.&quot;</span>);</div>
-<div class="line"><a id="l03090" name="l03090"></a><span class="lineno"> 3090</span>      }</div>
-<div class="line"><a id="l03091" name="l03091"></a><span class="lineno"> 3091</span> </div>
-<div class="line"><a id="l03092" name="l03092"></a><span class="lineno"> 3092</span>      <span class="keywordflow">break</span>;</div>
-<div class="line"><a id="l03093" name="l03093"></a><span class="lineno"> 3093</span>    }</div>
-<div class="line"><a id="l03094" name="l03094"></a><span class="lineno"> 3094</span>    <span class="comment">// else</span></div>
-<div class="line"><a id="l03095" name="l03095"></a><span class="lineno"> 3095</span> </div>
-<div class="line"><a id="l03096" name="l03096"></a><span class="lineno"> 3096</span>    <span class="comment">// ack_increment_after_me and high_ack_count_q invariants hold, so the next iteration can proceed.</span></div>
-<div class="line"><a id="l03097" name="l03097"></a><span class="lineno"> 3097</span>  } <span class="comment">// for (all elements in snd_flying_pkts_by_when, in decreasing m_sent_when order: newest -&gt; oldest)</span></div>
-<div class="line"><a id="l03098" name="l03098"></a><span class="lineno"> 3098</span> </div>
-<div class="line"><a id="l03099" name="l03099"></a><span class="lineno"> 3099</span>  <span class="keywordflow">return</span> last_dropped_pkt_it;</div>
-<div class="line"><a id="l03100" name="l03100"></a><span class="lineno"> 3100</span>} <span class="comment">// Node::categorize_pkts_as_dropped_on_acks()</span></div>
+<div class="line"><a id="l03084" name="l03084"></a><span class="lineno"> 3084</span>      <span class="keyword">auto</span> <span class="keyword">const</span> logger_ptr = <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>();</div>
+<div class="line"><a id="l03085" name="l03085"></a><span class="lineno"> 3085</span>      <span class="keywordflow">if</span> (logger_ptr &amp;&amp; logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">log::Sev::S_TRACE</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>()))</div>
+<div class="line"><a id="l03086" name="l03086"></a><span class="lineno"> 3086</span>      {</div>
+<div class="line"><a id="l03087" name="l03087"></a><span class="lineno"> 3087</span>        <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> cur_pkt_seq_num, cur_pkt_seq_num_end;</div>
+<div class="line"><a id="l03088" name="l03088"></a><span class="lineno"> 3088</span>        get_seq_num_range(last_dropped_pkt_it, &amp;cur_pkt_seq_num, &amp;cur_pkt_seq_num_end);</div>
+<div class="line"><a id="l03089" name="l03089"></a><span class="lineno"> 3089</span> </div>
+<div class="line"><a id="l03090" name="l03090"></a><span class="lineno"> 3090</span>        <a class="code hl_define" href="log_8hpp.html#a6b3b2cd7ddabf90a7c6ccd104a042cc6">FLOW_LOG_TRACE_WITHOUT_CHECKING</a></div>
+<div class="line"><a id="l03091" name="l03091"></a><span class="lineno"> 3091</span>          (<span class="stringliteral">&quot;Unacknowledged packet [&quot;</span> &lt;&lt; cur_pkt_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; cur_pkt_seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l03092" name="l03092"></a><span class="lineno"> 3092</span>           <span class="stringliteral">&quot;order_num [&quot;</span> &lt;&lt; cur_pkt_sent_when.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">m_order_num</a> &lt;&lt; <span class="stringliteral">&quot;] has &quot;</span></div>
+<div class="line"><a id="l03093" name="l03093"></a><span class="lineno"> 3093</span>           <span class="stringliteral">&quot;had [&quot;</span> &lt;&lt; cur_sent_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa">m_acks_after_me</a> &lt;&lt; <span class="stringliteral">&quot;] acknowledgments &quot;</span></div>
+<div class="line"><a id="l03094" name="l03094"></a><span class="lineno"> 3094</span>           <span class="stringliteral">&quot;for later packets; considering it and &quot;</span></div>
+<div class="line"><a id="l03095" name="l03095"></a><span class="lineno"> 3095</span>           <span class="stringliteral">&quot;all unacknowledged packets sent earlier as Dropped.&quot;</span>);</div>
+<div class="line"><a id="l03096" name="l03096"></a><span class="lineno"> 3096</span>      }</div>
+<div class="line"><a id="l03097" name="l03097"></a><span class="lineno"> 3097</span> </div>
+<div class="line"><a id="l03098" name="l03098"></a><span class="lineno"> 3098</span>      <span class="keywordflow">break</span>;</div>
+<div class="line"><a id="l03099" name="l03099"></a><span class="lineno"> 3099</span>    }</div>
+<div class="line"><a id="l03100" name="l03100"></a><span class="lineno"> 3100</span>    <span class="comment">// else</span></div>
 <div class="line"><a id="l03101" name="l03101"></a><span class="lineno"> 3101</span> </div>
-<div class="line"><a id="l03102" name="l03102"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ac910f24e5a176c4aa01992b08b62146a"> 3102</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac910f24e5a176c4aa01992b08b62146a">Node::drop_pkts_on_acks</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
-<div class="line"><a id="l03103" name="l03103"></a><span class="lineno"> 3103</span>                             <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a>&amp; last_dropped_pkt_it,</div>
-<div class="line"><a id="l03104" name="l03104"></a><span class="lineno"> 3104</span>                             <span class="keywordtype">size_t</span>* cong_ctl_dropped_pkts, <span class="keywordtype">size_t</span>* cong_ctl_dropped_bytes,</div>
-<div class="line"><a id="l03105" name="l03105"></a><span class="lineno"> 3105</span>                             <span class="keywordtype">size_t</span>* dropped_pkts, <span class="keywordtype">size_t</span>* dropped_bytes,</div>
-<div class="line"><a id="l03106" name="l03106"></a><span class="lineno"> 3106</span>                             std::vector&lt;Peer_socket::order_num_t&gt;* pkts_marked_to_drop)</div>
-<div class="line"><a id="l03107" name="l03107"></a><span class="lineno"> 3107</span>{</div>
-<div class="line"><a id="l03108" name="l03108"></a><span class="lineno"> 3108</span>  <span class="comment">// using boost::next; // Still ambiguous for some reason (in clang at least).</span></div>
-<div class="line"><a id="l03109" name="l03109"></a><span class="lineno"> 3109</span> </div>
-<div class="line"><a id="l03110" name="l03110"></a><span class="lineno"> 3110</span>  <span class="comment">/* This helper of handle_accumulated_acks() exists to make the latter method briefer/readable, not for code reuse</span></div>
-<div class="line"><a id="l03111" name="l03111"></a><span class="lineno"> 3111</span><span class="comment">   * as of this writing. The background is that once a set of individual acks has been processed in the sense that</span></div>
-<div class="line"><a id="l03112" name="l03112"></a><span class="lineno"> 3112</span><span class="comment">   * sock-&gt;m_snd_flying_pkts* (which tracks In-flight outbound DATA packets) has been updated by removing the</span></div>
-<div class="line"><a id="l03113" name="l03113"></a><span class="lineno"> 3113</span><span class="comment">   * acked packets (they are no longer In-flight), it&#39;s time to also recategorize certain further In-flight</span></div>
-<div class="line"><a id="l03114" name="l03114"></a><span class="lineno"> 3114</span><span class="comment">   * packets as Dropped -- the intuition being that once N packets sent LATER than a given packet P have been</span></div>
-<div class="line"><a id="l03115" name="l03115"></a><span class="lineno"> 3115</span><span class="comment">   * acked, it&#39;s highly probable that P has been Dropped by the network. This method does that (dropping</span></div>
-<div class="line"><a id="l03116" name="l03116"></a><span class="lineno"> 3116</span><span class="comment">   * all such packets P) and certain related tasks such as tracking the associated loss event(s) for congestion</span></div>
-<div class="line"><a id="l03117" name="l03117"></a><span class="lineno"> 3117</span><span class="comment">   * control.</span></div>
-<div class="line"><a id="l03118" name="l03118"></a><span class="lineno"> 3118</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03119" name="l03119"></a><span class="lineno"> 3119</span><span class="comment">   * Now, as explained elsewhere, when ack set S causes packet set P&#39; to be Dropped, this (possibly null) set P&#39;</span></div>
-<div class="line"><a id="l03120" name="l03120"></a><span class="lineno"> 3120</span><span class="comment">   * always has the following form: there is some particular packet P which is the most-recently-sent one</span></div>
-<div class="line"><a id="l03121" name="l03121"></a><span class="lineno"> 3121</span><span class="comment">   * that is in P&#39;; and therefore ALL other In-flight packets sent before P must be dropped too and also are in P&#39;.</span></div>
-<div class="line"><a id="l03122" name="l03122"></a><span class="lineno"> 3122</span><span class="comment">   * Thus P is necessary/sufficient to specify P&#39;.  last_droppped_pkt_it argument points to P&#39; and is determined</span></div>
-<div class="line"><a id="l03123" name="l03123"></a><span class="lineno"> 3123</span><span class="comment">   * elsewhere and used by this helper. */</span></div>
-<div class="line"><a id="l03124" name="l03124"></a><span class="lineno"> 3124</span> </div>
-<div class="line"><a id="l03125" name="l03125"></a><span class="lineno"> 3125</span>  <span class="comment">// For brevity and a little speed:</span></div>
-<div class="line"><a id="l03126" name="l03126"></a><span class="lineno"> 3126</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> = sock-&gt;rexmit_on();</div>
-<div class="line"><a id="l03127" name="l03127"></a><span class="lineno"> 3127</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
-<div class="line"><a id="l03128" name="l03128"></a><span class="lineno"> 3128</span>  <span class="keyword">auto</span>&amp; snd_stats = sock-&gt;m_snd_stats;</div>
-<div class="line"><a id="l03129" name="l03129"></a><span class="lineno"> 3129</span> </div>
-<div class="line"><a id="l03130" name="l03130"></a><span class="lineno"> 3130</span>  <span class="comment">/* Pre-condition: all elements starting with (inclusive) last_dropped_pkt_it (within</span></div>
-<div class="line"><a id="l03131" name="l03131"></a><span class="lineno"> 3131</span><span class="comment">   * snd_flying_pkts_by_when) should be considered Dropped.  If last_dropped_pkt_it ==</span></div>
-<div class="line"><a id="l03132" name="l03132"></a><span class="lineno"> 3132</span><span class="comment">   * snd_flying_pkts_by_when.past_oldest() a/k/a end(), then none should be considered</span></div>
-<div class="line"><a id="l03133" name="l03133"></a><span class="lineno"> 3133</span><span class="comment">   * Dropped (i.e., no m_acks_after_me became high enough).</span></div>
-<div class="line"><a id="l03134" name="l03134"></a><span class="lineno"> 3134</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03135" name="l03135"></a><span class="lineno"> 3135</span><span class="comment">   * Given that, we have a number of tasks remaining:</span></div>
-<div class="line"><a id="l03136" name="l03136"></a><span class="lineno"> 3136</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03137" name="l03137"></a><span class="lineno"> 3137</span><span class="comment">   *   1. Count the total # of packets and bytes now considered Dropped and pass this to congestion control.</span></div>
-<div class="line"><a id="l03138" name="l03138"></a><span class="lineno"> 3138</span><span class="comment">   *      Omit those packets/bytes heuristically determined to belong to a loss event detected in an earlier</span></div>
-<div class="line"><a id="l03139" name="l03139"></a><span class="lineno"> 3139</span><span class="comment">   *      call, namely those for which m_sent_when &lt; m_snd_last_loss_event_when.</span></div>
-<div class="line"><a id="l03140" name="l03140"></a><span class="lineno"> 3140</span><span class="comment">   *   2. (If retransmission is enabled) Queue those Dropped packets for retransmission in retransmission queue.</span></div>
-<div class="line"><a id="l03141" name="l03141"></a><span class="lineno"> 3141</span><span class="comment">   *   3. Erase the Dropped packets from snd_flying_packets*.</span></div>
+<div class="line"><a id="l03102" name="l03102"></a><span class="lineno"> 3102</span>    <span class="comment">// ack_increment_after_me and high_ack_count_q invariants hold, so the next iteration can proceed.</span></div>
+<div class="line"><a id="l03103" name="l03103"></a><span class="lineno"> 3103</span>  } <span class="comment">// for (all elements in snd_flying_pkts_by_when, in decreasing m_sent_when order: newest -&gt; oldest)</span></div>
+<div class="line"><a id="l03104" name="l03104"></a><span class="lineno"> 3104</span> </div>
+<div class="line"><a id="l03105" name="l03105"></a><span class="lineno"> 3105</span>  <span class="keywordflow">return</span> last_dropped_pkt_it;</div>
+<div class="line"><a id="l03106" name="l03106"></a><span class="lineno"> 3106</span>} <span class="comment">// Node::categorize_pkts_as_dropped_on_acks()</span></div>
+<div class="line"><a id="l03107" name="l03107"></a><span class="lineno"> 3107</span> </div>
+<div class="line"><a id="l03108" name="l03108"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ac910f24e5a176c4aa01992b08b62146a"> 3108</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac910f24e5a176c4aa01992b08b62146a">Node::drop_pkts_on_acks</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
+<div class="line"><a id="l03109" name="l03109"></a><span class="lineno"> 3109</span>                             <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a>&amp; last_dropped_pkt_it,</div>
+<div class="line"><a id="l03110" name="l03110"></a><span class="lineno"> 3110</span>                             <span class="keywordtype">size_t</span>* cong_ctl_dropped_pkts, <span class="keywordtype">size_t</span>* cong_ctl_dropped_bytes,</div>
+<div class="line"><a id="l03111" name="l03111"></a><span class="lineno"> 3111</span>                             <span class="keywordtype">size_t</span>* dropped_pkts, <span class="keywordtype">size_t</span>* dropped_bytes,</div>
+<div class="line"><a id="l03112" name="l03112"></a><span class="lineno"> 3112</span>                             std::vector&lt;Peer_socket::order_num_t&gt;* pkts_marked_to_drop)</div>
+<div class="line"><a id="l03113" name="l03113"></a><span class="lineno"> 3113</span>{</div>
+<div class="line"><a id="l03114" name="l03114"></a><span class="lineno"> 3114</span>  <span class="comment">// using boost::next; // Still ambiguous for some reason (in clang at least).</span></div>
+<div class="line"><a id="l03115" name="l03115"></a><span class="lineno"> 3115</span> </div>
+<div class="line"><a id="l03116" name="l03116"></a><span class="lineno"> 3116</span>  <span class="comment">/* This helper of handle_accumulated_acks() exists to make the latter method briefer/readable, not for code reuse</span></div>
+<div class="line"><a id="l03117" name="l03117"></a><span class="lineno"> 3117</span><span class="comment">   * as of this writing. The background is that once a set of individual acks has been processed in the sense that</span></div>
+<div class="line"><a id="l03118" name="l03118"></a><span class="lineno"> 3118</span><span class="comment">   * sock-&gt;m_snd_flying_pkts* (which tracks In-flight outbound DATA packets) has been updated by removing the</span></div>
+<div class="line"><a id="l03119" name="l03119"></a><span class="lineno"> 3119</span><span class="comment">   * acked packets (they are no longer In-flight), it&#39;s time to also recategorize certain further In-flight</span></div>
+<div class="line"><a id="l03120" name="l03120"></a><span class="lineno"> 3120</span><span class="comment">   * packets as Dropped -- the intuition being that once N packets sent LATER than a given packet P have been</span></div>
+<div class="line"><a id="l03121" name="l03121"></a><span class="lineno"> 3121</span><span class="comment">   * acked, it&#39;s highly probable that P has been Dropped by the network. This method does that (dropping</span></div>
+<div class="line"><a id="l03122" name="l03122"></a><span class="lineno"> 3122</span><span class="comment">   * all such packets P) and certain related tasks such as tracking the associated loss event(s) for congestion</span></div>
+<div class="line"><a id="l03123" name="l03123"></a><span class="lineno"> 3123</span><span class="comment">   * control.</span></div>
+<div class="line"><a id="l03124" name="l03124"></a><span class="lineno"> 3124</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03125" name="l03125"></a><span class="lineno"> 3125</span><span class="comment">   * Now, as explained elsewhere, when ack set S causes packet set P&#39; to be Dropped, this (possibly null) set P&#39;</span></div>
+<div class="line"><a id="l03126" name="l03126"></a><span class="lineno"> 3126</span><span class="comment">   * always has the following form: there is some particular packet P which is the most-recently-sent one</span></div>
+<div class="line"><a id="l03127" name="l03127"></a><span class="lineno"> 3127</span><span class="comment">   * that is in P&#39;; and therefore ALL other In-flight packets sent before P must be dropped too and also are in P&#39;.</span></div>
+<div class="line"><a id="l03128" name="l03128"></a><span class="lineno"> 3128</span><span class="comment">   * Thus P is necessary/sufficient to specify P&#39;.  last_droppped_pkt_it argument points to P&#39; and is determined</span></div>
+<div class="line"><a id="l03129" name="l03129"></a><span class="lineno"> 3129</span><span class="comment">   * elsewhere and used by this helper. */</span></div>
+<div class="line"><a id="l03130" name="l03130"></a><span class="lineno"> 3130</span> </div>
+<div class="line"><a id="l03131" name="l03131"></a><span class="lineno"> 3131</span>  <span class="comment">// For brevity and a little speed:</span></div>
+<div class="line"><a id="l03132" name="l03132"></a><span class="lineno"> 3132</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> = sock-&gt;rexmit_on();</div>
+<div class="line"><a id="l03133" name="l03133"></a><span class="lineno"> 3133</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
+<div class="line"><a id="l03134" name="l03134"></a><span class="lineno"> 3134</span>  <span class="keyword">auto</span>&amp; snd_stats = sock-&gt;m_snd_stats;</div>
+<div class="line"><a id="l03135" name="l03135"></a><span class="lineno"> 3135</span> </div>
+<div class="line"><a id="l03136" name="l03136"></a><span class="lineno"> 3136</span>  <span class="comment">/* Pre-condition: all elements starting with (inclusive) last_dropped_pkt_it (within</span></div>
+<div class="line"><a id="l03137" name="l03137"></a><span class="lineno"> 3137</span><span class="comment">   * snd_flying_pkts_by_when) should be considered Dropped.  If last_dropped_pkt_it ==</span></div>
+<div class="line"><a id="l03138" name="l03138"></a><span class="lineno"> 3138</span><span class="comment">   * snd_flying_pkts_by_when.past_oldest() a/k/a end(), then none should be considered</span></div>
+<div class="line"><a id="l03139" name="l03139"></a><span class="lineno"> 3139</span><span class="comment">   * Dropped (i.e., no m_acks_after_me became high enough).</span></div>
+<div class="line"><a id="l03140" name="l03140"></a><span class="lineno"> 3140</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03141" name="l03141"></a><span class="lineno"> 3141</span><span class="comment">   * Given that, we have a number of tasks remaining:</span></div>
 <div class="line"><a id="l03142" name="l03142"></a><span class="lineno"> 3142</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03143" name="l03143"></a><span class="lineno"> 3143</span><span class="comment">   * For (non-asymptotic) performance, ideally we want to traverse snd_flying_pkts_by_when just once,</span></div>
-<div class="line"><a id="l03144" name="l03144"></a><span class="lineno"> 3144</span><span class="comment">   * computing what&#39;s needed for these. Drilling down a bit:</span></div>
-<div class="line"><a id="l03145" name="l03145"></a><span class="lineno"> 3145</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03146" name="l03146"></a><span class="lineno"> 3146</span><span class="comment">   * (2) and (3) are simple and involve walking over the Dropped range that has been computed (pre-condition above)</span></div>
-<div class="line"><a id="l03147" name="l03147"></a><span class="lineno"> 3147</span><span class="comment">   * and adding-elsewhere or erasing those elements, respectively, though (2) must be done in chronological order</span></div>
-<div class="line"><a id="l03148" name="l03148"></a><span class="lineno"> 3148</span><span class="comment">   * (increasing Sent_when).</span></div>
-<div class="line"><a id="l03149" name="l03149"></a><span class="lineno"> 3149</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03150" name="l03150"></a><span class="lineno"> 3150</span><span class="comment">   * (1) is a matter of walking in anti-chronological (decreasing Sent_when) order over that same range, until</span></div>
-<div class="line"><a id="l03151" name="l03151"></a><span class="lineno"> 3151</span><span class="comment">   * a certain Sent_when threshold is found, and stopping there.</span></div>
-<div class="line"><a id="l03152" name="l03152"></a><span class="lineno"> 3152</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03153" name="l03153"></a><span class="lineno"> 3153</span><span class="comment">   * Thus, the kitchen-sink algorithm emerges: walk through Dropped range in decreasing Sent_when order, so</span></div>
-<div class="line"><a id="l03154" name="l03154"></a><span class="lineno"> 3154</span><span class="comment">   * from last_dropped_pkt_it along snd_flying_pkts_by_when.  Accumulate bytes/packets for (1), but stop</span></div>
-<div class="line"><a id="l03155" name="l03155"></a><span class="lineno"> 3155</span><span class="comment">   * accumulating once m_snd_last_loss_event_when is reached w/r/t m_sent_when.  Erase from snd_flying_pkts*</span></div>
-<div class="line"><a id="l03156" name="l03156"></a><span class="lineno"> 3156</span><span class="comment">   * (carefully, since we are walking along one of them), for (3).  And add to the retransmission queue, but in</span></div>
-<div class="line"><a id="l03157" name="l03157"></a><span class="lineno"> 3157</span><span class="comment">   * reverse order versus the walking order, for (2). */</span></div>
-<div class="line"><a id="l03158" name="l03158"></a><span class="lineno"> 3158</span> </div>
-<div class="line"><a id="l03159" name="l03159"></a><span class="lineno"> 3159</span>  *dropped_pkts = snd_flying_pkts_by_when.size(); <span class="comment">// We will just compute the final value by subtracting &quot;after.&quot;</span></div>
-<div class="line"><a id="l03160" name="l03160"></a><span class="lineno"> 3160</span>  *dropped_bytes = sock-&gt;m_snd_flying_bytes; <span class="comment">// Ditto.</span></div>
-<div class="line"><a id="l03161" name="l03161"></a><span class="lineno"> 3161</span> </div>
-<div class="line"><a id="l03162" name="l03162"></a><span class="lineno"> 3162</span>  *cong_ctl_dropped_bytes = 0;</div>
-<div class="line"><a id="l03163" name="l03163"></a><span class="lineno"> 3163</span>  *cong_ctl_dropped_pkts = 0;</div>
-<div class="line"><a id="l03164" name="l03164"></a><span class="lineno"> 3164</span>  <span class="keywordtype">bool</span> loss_event_finished = <span class="keyword">false</span>;</div>
-<div class="line"><a id="l03165" name="l03165"></a><span class="lineno"> 3165</span> </div>
-<div class="line"><a id="l03166" name="l03166"></a><span class="lineno"> 3166</span>  <span class="comment">/* We want to add to retransmission queue (if retransmission is on).  We also want to traverse</span></div>
-<div class="line"><a id="l03167" name="l03167"></a><span class="lineno"> 3167</span><span class="comment">   * snd_flying_pkts_by_when in forward newest-&gt;oldest order (for convenience and also to efficiently compute</span></div>
-<div class="line"><a id="l03168" name="l03168"></a><span class="lineno"> 3168</span><span class="comment">   * cong_ctl_dropped_*).  However we want to retransmit in reverse order (oldest-&gt;newest).  So we</span></div>
-<div class="line"><a id="l03169" name="l03169"></a><span class="lineno"> 3169</span><span class="comment">   * put the packets to retransmit in the latter order into snd_rexmit_q, at the end of the latter.</span></div>
-<div class="line"><a id="l03170" name="l03170"></a><span class="lineno"> 3170</span><span class="comment">   * So, if it was [ABC], and we dropped [DEF], then we want to insert to yield [ABCFED] (ABC-&gt;ABCFED).</span></div>
-<div class="line"><a id="l03171" name="l03171"></a><span class="lineno"> 3171</span><span class="comment">   * list&lt;&gt;::insert(it, v) will insert `v` before *it and return iterator to just-inserted element.</span></div>
-<div class="line"><a id="l03172" name="l03172"></a><span class="lineno"> 3172</span><span class="comment">   * So we can memorize the latter and pass it in as `it` in the next insert(), rinse, repeat.</span></div>
-<div class="line"><a id="l03173" name="l03173"></a><span class="lineno"> 3173</span><span class="comment">   * In the above example: ABC-&gt;ABC(D)-&gt;ABC(E)D-&gt;ABC(F)ED. // () is inserted element.</span></div>
-<div class="line"><a id="l03174" name="l03174"></a><span class="lineno"> 3174</span><span class="comment">   *                          ^     ^       ^        // ^ is &quot;fulcrum&quot;: insertion point for insertion following next -&gt;.</span></div>
-<div class="line"><a id="l03175" name="l03175"></a><span class="lineno"> 3175</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03176" name="l03176"></a><span class="lineno"> 3176</span><span class="comment">   * snd_rexmit_q_fulcrum_it, the insertion point, is so named due to being the &quot;fulcrum&quot; between the old and</span></div>
-<div class="line"><a id="l03177" name="l03177"></a><span class="lineno"> 3177</span><span class="comment">   * new parts of snd_rexmit_q.  History: Used to use a local new list&lt;&gt; here which would be spliced onto</span></div>
-<div class="line"><a id="l03178" name="l03178"></a><span class="lineno"> 3178</span><span class="comment">   * the real queue at the end; but IMO this is more elegant (and probably a bit speedier). */</span></div>
-<div class="line"><a id="l03179" name="l03179"></a><span class="lineno"> 3179</span>  <span class="keyword">auto</span>&amp; snd_rexmit_q = sock-&gt;m_snd_rexmit_q;</div>
-<div class="line"><a id="l03180" name="l03180"></a><span class="lineno"> 3180</span>  <span class="keyword">decltype</span>(sock-&gt;m_snd_rexmit_q)::iterator snd_rexmit_q_fulcrum_it = snd_rexmit_q.end();</div>
-<div class="line"><a id="l03181" name="l03181"></a><span class="lineno"> 3181</span> </div>
-<div class="line"><a id="l03182" name="l03182"></a><span class="lineno"> 3182</span>  <span class="comment">// We are to fill this up, so it should not have anything yet.</span></div>
-<div class="line"><a id="l03183" name="l03183"></a><span class="lineno"> 3183</span>  assert(pkts_marked_to_drop-&gt;empty());</div>
-<div class="line"><a id="l03184" name="l03184"></a><span class="lineno"> 3184</span> </div>
-<div class="line"><a id="l03185" name="l03185"></a><span class="lineno"> 3185</span>  <span class="keyword">auto</span> pkt_it = last_dropped_pkt_it;</div>
-<div class="line"><a id="l03186" name="l03186"></a><span class="lineno"> 3186</span>  <span class="keywordflow">while</span> (pkt_it != snd_flying_pkts_by_when.past_oldest())</div>
-<div class="line"><a id="l03187" name="l03187"></a><span class="lineno"> 3187</span>  {</div>
-<div class="line"><a id="l03188" name="l03188"></a><span class="lineno"> 3188</span>    <span class="comment">// We can&#39;t just ++pkt_it later on, because we are going to erase() at pkt_it soon, invalidating it.</span></div>
-<div class="line"><a id="l03189" name="l03189"></a><span class="lineno"> 3189</span>    <span class="keyword">auto</span> next_pkt_it = boost::next(pkt_it);</div>
-<div class="line"><a id="l03190" name="l03190"></a><span class="lineno"> 3190</span>    <span class="comment">// Now see end of loop body.</span></div>
-<div class="line"><a id="l03191" name="l03191"></a><span class="lineno"> 3191</span> </div>
-<div class="line"><a id="l03192" name="l03192"></a><span class="lineno"> 3192</span>    <span class="comment">// Accumulate stuff for passing into congestion control at the end.</span></div>
-<div class="line"><a id="l03193" name="l03193"></a><span class="lineno"> 3193</span> </div>
-<div class="line"><a id="l03194" name="l03194"></a><span class="lineno"> 3194</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Sent_packet::Ptr</a> sent_pkt = pkt_it-&gt;second;</div>
-<div class="line"><a id="l03195" name="l03195"></a><span class="lineno"> 3195</span>    <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Peer_socket::Sent_packet::Sent_when</a>&amp; sent_when = sent_pkt-&gt;m_sent_when.back();</div>
-<div class="line"><a id="l03196" name="l03196"></a><span class="lineno"> 3196</span> </div>
-<div class="line"><a id="l03197" name="l03197"></a><span class="lineno"> 3197</span>    <span class="keywordflow">if</span> (!loss_event_finished)</div>
-<div class="line"><a id="l03198" name="l03198"></a><span class="lineno"> 3198</span>    {</div>
-<div class="line"><a id="l03199" name="l03199"></a><span class="lineno"> 3199</span>      <span class="keywordflow">if</span> (<span class="comment">// This is part of a new loss event if: There has been no loss event before this...</span></div>
-<div class="line"><a id="l03200" name="l03200"></a><span class="lineno"> 3200</span>          (sock-&gt;m_snd_last_loss_event_when != <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>())</div>
-<div class="line"><a id="l03201" name="l03201"></a><span class="lineno"> 3201</span>          <span class="comment">// ...OR there has, but this packet was sent after that event was detected.</span></div>
-<div class="line"><a id="l03202" name="l03202"></a><span class="lineno"> 3202</span>          &amp;&amp; (sent_when.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#ad513e58f4eb611c3a91d96df26f53f2c">m_sent_time</a> &lt; sock-&gt;m_snd_last_loss_event_when))</div>
-<div class="line"><a id="l03203" name="l03203"></a><span class="lineno"> 3203</span>      {</div>
-<div class="line"><a id="l03204" name="l03204"></a><span class="lineno"> 3204</span>        <span class="comment">/* This is the first packet encountered to be part of a previous loss event.  If</span></div>
-<div class="line"><a id="l03205" name="l03205"></a><span class="lineno"> 3205</span><span class="comment">         * retransmission is off, this will also cause the loop to exit. */</span></div>
-<div class="line"><a id="l03206" name="l03206"></a><span class="lineno"> 3206</span>        loss_event_finished = <span class="keyword">true</span>;</div>
-<div class="line"><a id="l03207" name="l03207"></a><span class="lineno"> 3207</span>      }</div>
-<div class="line"><a id="l03208" name="l03208"></a><span class="lineno"> 3208</span>      <span class="keywordflow">else</span></div>
+<div class="line"><a id="l03143" name="l03143"></a><span class="lineno"> 3143</span><span class="comment">   *   1. Count the total # of packets and bytes now considered Dropped and pass this to congestion control.</span></div>
+<div class="line"><a id="l03144" name="l03144"></a><span class="lineno"> 3144</span><span class="comment">   *      Omit those packets/bytes heuristically determined to belong to a loss event detected in an earlier</span></div>
+<div class="line"><a id="l03145" name="l03145"></a><span class="lineno"> 3145</span><span class="comment">   *      call, namely those for which m_sent_when &lt; m_snd_last_loss_event_when.</span></div>
+<div class="line"><a id="l03146" name="l03146"></a><span class="lineno"> 3146</span><span class="comment">   *   2. (If retransmission is enabled) Queue those Dropped packets for retransmission in retransmission queue.</span></div>
+<div class="line"><a id="l03147" name="l03147"></a><span class="lineno"> 3147</span><span class="comment">   *   3. Erase the Dropped packets from snd_flying_packets*.</span></div>
+<div class="line"><a id="l03148" name="l03148"></a><span class="lineno"> 3148</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03149" name="l03149"></a><span class="lineno"> 3149</span><span class="comment">   * For (non-asymptotic) performance, ideally we want to traverse snd_flying_pkts_by_when just once,</span></div>
+<div class="line"><a id="l03150" name="l03150"></a><span class="lineno"> 3150</span><span class="comment">   * computing what&#39;s needed for these. Drilling down a bit:</span></div>
+<div class="line"><a id="l03151" name="l03151"></a><span class="lineno"> 3151</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03152" name="l03152"></a><span class="lineno"> 3152</span><span class="comment">   * (2) and (3) are simple and involve walking over the Dropped range that has been computed (pre-condition above)</span></div>
+<div class="line"><a id="l03153" name="l03153"></a><span class="lineno"> 3153</span><span class="comment">   * and adding-elsewhere or erasing those elements, respectively, though (2) must be done in chronological order</span></div>
+<div class="line"><a id="l03154" name="l03154"></a><span class="lineno"> 3154</span><span class="comment">   * (increasing Sent_when).</span></div>
+<div class="line"><a id="l03155" name="l03155"></a><span class="lineno"> 3155</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03156" name="l03156"></a><span class="lineno"> 3156</span><span class="comment">   * (1) is a matter of walking in anti-chronological (decreasing Sent_when) order over that same range, until</span></div>
+<div class="line"><a id="l03157" name="l03157"></a><span class="lineno"> 3157</span><span class="comment">   * a certain Sent_when threshold is found, and stopping there.</span></div>
+<div class="line"><a id="l03158" name="l03158"></a><span class="lineno"> 3158</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03159" name="l03159"></a><span class="lineno"> 3159</span><span class="comment">   * Thus, the kitchen-sink algorithm emerges: walk through Dropped range in decreasing Sent_when order, so</span></div>
+<div class="line"><a id="l03160" name="l03160"></a><span class="lineno"> 3160</span><span class="comment">   * from last_dropped_pkt_it along snd_flying_pkts_by_when.  Accumulate bytes/packets for (1), but stop</span></div>
+<div class="line"><a id="l03161" name="l03161"></a><span class="lineno"> 3161</span><span class="comment">   * accumulating once m_snd_last_loss_event_when is reached w/r/t m_sent_when.  Erase from snd_flying_pkts*</span></div>
+<div class="line"><a id="l03162" name="l03162"></a><span class="lineno"> 3162</span><span class="comment">   * (carefully, since we are walking along one of them), for (3).  And add to the retransmission queue, but in</span></div>
+<div class="line"><a id="l03163" name="l03163"></a><span class="lineno"> 3163</span><span class="comment">   * reverse order versus the walking order, for (2). */</span></div>
+<div class="line"><a id="l03164" name="l03164"></a><span class="lineno"> 3164</span> </div>
+<div class="line"><a id="l03165" name="l03165"></a><span class="lineno"> 3165</span>  *dropped_pkts = snd_flying_pkts_by_when.size(); <span class="comment">// We will just compute the final value by subtracting &quot;after.&quot;</span></div>
+<div class="line"><a id="l03166" name="l03166"></a><span class="lineno"> 3166</span>  *dropped_bytes = sock-&gt;m_snd_flying_bytes; <span class="comment">// Ditto.</span></div>
+<div class="line"><a id="l03167" name="l03167"></a><span class="lineno"> 3167</span> </div>
+<div class="line"><a id="l03168" name="l03168"></a><span class="lineno"> 3168</span>  *cong_ctl_dropped_bytes = 0;</div>
+<div class="line"><a id="l03169" name="l03169"></a><span class="lineno"> 3169</span>  *cong_ctl_dropped_pkts = 0;</div>
+<div class="line"><a id="l03170" name="l03170"></a><span class="lineno"> 3170</span>  <span class="keywordtype">bool</span> loss_event_finished = <span class="keyword">false</span>;</div>
+<div class="line"><a id="l03171" name="l03171"></a><span class="lineno"> 3171</span> </div>
+<div class="line"><a id="l03172" name="l03172"></a><span class="lineno"> 3172</span>  <span class="comment">/* We want to add to retransmission queue (if retransmission is on).  We also want to traverse</span></div>
+<div class="line"><a id="l03173" name="l03173"></a><span class="lineno"> 3173</span><span class="comment">   * snd_flying_pkts_by_when in forward newest-&gt;oldest order (for convenience and also to efficiently compute</span></div>
+<div class="line"><a id="l03174" name="l03174"></a><span class="lineno"> 3174</span><span class="comment">   * cong_ctl_dropped_*).  However we want to retransmit in reverse order (oldest-&gt;newest).  So we</span></div>
+<div class="line"><a id="l03175" name="l03175"></a><span class="lineno"> 3175</span><span class="comment">   * put the packets to retransmit in the latter order into snd_rexmit_q, at the end of the latter.</span></div>
+<div class="line"><a id="l03176" name="l03176"></a><span class="lineno"> 3176</span><span class="comment">   * So, if it was [ABC], and we dropped [DEF], then we want to insert to yield [ABCFED] (ABC-&gt;ABCFED).</span></div>
+<div class="line"><a id="l03177" name="l03177"></a><span class="lineno"> 3177</span><span class="comment">   * list&lt;&gt;::insert(it, v) will insert `v` before *it and return iterator to just-inserted element.</span></div>
+<div class="line"><a id="l03178" name="l03178"></a><span class="lineno"> 3178</span><span class="comment">   * So we can memorize the latter and pass it in as `it` in the next insert(), rinse, repeat.</span></div>
+<div class="line"><a id="l03179" name="l03179"></a><span class="lineno"> 3179</span><span class="comment">   * In the above example: ABC-&gt;ABC(D)-&gt;ABC(E)D-&gt;ABC(F)ED. // () is inserted element.</span></div>
+<div class="line"><a id="l03180" name="l03180"></a><span class="lineno"> 3180</span><span class="comment">   *                          ^     ^       ^        // ^ is &quot;fulcrum&quot;: insertion point for insertion following next -&gt;.</span></div>
+<div class="line"><a id="l03181" name="l03181"></a><span class="lineno"> 3181</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03182" name="l03182"></a><span class="lineno"> 3182</span><span class="comment">   * snd_rexmit_q_fulcrum_it, the insertion point, is so named due to being the &quot;fulcrum&quot; between the old and</span></div>
+<div class="line"><a id="l03183" name="l03183"></a><span class="lineno"> 3183</span><span class="comment">   * new parts of snd_rexmit_q.  History: Used to use a local new list&lt;&gt; here which would be spliced onto</span></div>
+<div class="line"><a id="l03184" name="l03184"></a><span class="lineno"> 3184</span><span class="comment">   * the real queue at the end; but IMO this is more elegant (and probably a bit speedier). */</span></div>
+<div class="line"><a id="l03185" name="l03185"></a><span class="lineno"> 3185</span>  <span class="keyword">auto</span>&amp; snd_rexmit_q = sock-&gt;m_snd_rexmit_q;</div>
+<div class="line"><a id="l03186" name="l03186"></a><span class="lineno"> 3186</span>  <span class="keyword">decltype</span>(sock-&gt;m_snd_rexmit_q)::iterator snd_rexmit_q_fulcrum_it = snd_rexmit_q.end();</div>
+<div class="line"><a id="l03187" name="l03187"></a><span class="lineno"> 3187</span> </div>
+<div class="line"><a id="l03188" name="l03188"></a><span class="lineno"> 3188</span>  <span class="comment">// We are to fill this up, so it should not have anything yet.</span></div>
+<div class="line"><a id="l03189" name="l03189"></a><span class="lineno"> 3189</span>  assert(pkts_marked_to_drop-&gt;empty());</div>
+<div class="line"><a id="l03190" name="l03190"></a><span class="lineno"> 3190</span> </div>
+<div class="line"><a id="l03191" name="l03191"></a><span class="lineno"> 3191</span>  <span class="keyword">auto</span> pkt_it = last_dropped_pkt_it;</div>
+<div class="line"><a id="l03192" name="l03192"></a><span class="lineno"> 3192</span>  <span class="keywordflow">while</span> (pkt_it != snd_flying_pkts_by_when.past_oldest())</div>
+<div class="line"><a id="l03193" name="l03193"></a><span class="lineno"> 3193</span>  {</div>
+<div class="line"><a id="l03194" name="l03194"></a><span class="lineno"> 3194</span>    <span class="comment">// We can&#39;t just ++pkt_it later on, because we are going to erase() at pkt_it soon, invalidating it.</span></div>
+<div class="line"><a id="l03195" name="l03195"></a><span class="lineno"> 3195</span>    <span class="keyword">auto</span> next_pkt_it = boost::next(pkt_it);</div>
+<div class="line"><a id="l03196" name="l03196"></a><span class="lineno"> 3196</span>    <span class="comment">// Now see end of loop body.</span></div>
+<div class="line"><a id="l03197" name="l03197"></a><span class="lineno"> 3197</span> </div>
+<div class="line"><a id="l03198" name="l03198"></a><span class="lineno"> 3198</span>    <span class="comment">// Accumulate stuff for passing into congestion control at the end.</span></div>
+<div class="line"><a id="l03199" name="l03199"></a><span class="lineno"> 3199</span> </div>
+<div class="line"><a id="l03200" name="l03200"></a><span class="lineno"> 3200</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Sent_packet::Ptr</a> sent_pkt = pkt_it-&gt;second;</div>
+<div class="line"><a id="l03201" name="l03201"></a><span class="lineno"> 3201</span>    <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Peer_socket::Sent_packet::Sent_when</a>&amp; sent_when = sent_pkt-&gt;m_sent_when.back();</div>
+<div class="line"><a id="l03202" name="l03202"></a><span class="lineno"> 3202</span> </div>
+<div class="line"><a id="l03203" name="l03203"></a><span class="lineno"> 3203</span>    <span class="keywordflow">if</span> (!loss_event_finished)</div>
+<div class="line"><a id="l03204" name="l03204"></a><span class="lineno"> 3204</span>    {</div>
+<div class="line"><a id="l03205" name="l03205"></a><span class="lineno"> 3205</span>      <span class="keywordflow">if</span> (<span class="comment">// This is part of a new loss event if: There has been no loss event before this...</span></div>
+<div class="line"><a id="l03206" name="l03206"></a><span class="lineno"> 3206</span>          (sock-&gt;m_snd_last_loss_event_when != <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>())</div>
+<div class="line"><a id="l03207" name="l03207"></a><span class="lineno"> 3207</span>          <span class="comment">// ...OR there has, but this packet was sent after that event was detected.</span></div>
+<div class="line"><a id="l03208" name="l03208"></a><span class="lineno"> 3208</span>          &amp;&amp; (sent_when.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#ad513e58f4eb611c3a91d96df26f53f2c">m_sent_time</a> &lt; sock-&gt;m_snd_last_loss_event_when))</div>
 <div class="line"><a id="l03209" name="l03209"></a><span class="lineno"> 3209</span>      {</div>
-<div class="line"><a id="l03210" name="l03210"></a><span class="lineno"> 3210</span>        <span class="comment">// Only got here if this packet and all Dropped packets after it are part of a new loss event.</span></div>
-<div class="line"><a id="l03211" name="l03211"></a><span class="lineno"> 3211</span>        *cong_ctl_dropped_bytes += sent_pkt-&gt;m_size;</div>
-<div class="line"><a id="l03212" name="l03212"></a><span class="lineno"> 3212</span>        ++(*cong_ctl_dropped_pkts);</div>
+<div class="line"><a id="l03210" name="l03210"></a><span class="lineno"> 3210</span>        <span class="comment">/* This is the first packet encountered to be part of a previous loss event.  If</span></div>
+<div class="line"><a id="l03211" name="l03211"></a><span class="lineno"> 3211</span><span class="comment">         * retransmission is off, this will also cause the loop to exit. */</span></div>
+<div class="line"><a id="l03212" name="l03212"></a><span class="lineno"> 3212</span>        loss_event_finished = <span class="keyword">true</span>;</div>
 <div class="line"><a id="l03213" name="l03213"></a><span class="lineno"> 3213</span>      }</div>
-<div class="line"><a id="l03214" name="l03214"></a><span class="lineno"> 3214</span>    }</div>
-<div class="line"><a id="l03215" name="l03215"></a><span class="lineno"> 3215</span>    <span class="comment">// else { Already found end of new loss event, if any, so no need to keep looking for it. }</span></div>
-<div class="line"><a id="l03216" name="l03216"></a><span class="lineno"> 3216</span> </div>
-<div class="line"><a id="l03217" name="l03217"></a><span class="lineno"> 3217</span>    <span class="comment">// Add to retransmission queue if applicable.</span></div>
-<div class="line"><a id="l03218" name="l03218"></a><span class="lineno"> 3218</span> </div>
-<div class="line"><a id="l03219" name="l03219"></a><span class="lineno"> 3219</span>    <span class="keywordflow">if</span> (<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>)</div>
-<div class="line"><a id="l03220" name="l03220"></a><span class="lineno"> 3220</span>    {</div>
-<div class="line"><a id="l03221" name="l03221"></a><span class="lineno"> 3221</span>      <span class="keywordflow">if</span> (!ok_to_rexmit_or_close(sock, pkt_it, <span class="keyword">true</span>)) <span class="comment">// Ensure not too many retransmissions already.</span></div>
-<div class="line"><a id="l03222" name="l03222"></a><span class="lineno"> 3222</span>      <span class="comment">/* ^-- defer_delta_check == true: because the only way to get to this method is from</span></div>
-<div class="line"><a id="l03223" name="l03223"></a><span class="lineno"> 3223</span><span class="comment">       * async_low_lvl_recv(), which will perform event_set_all_check_delta(false) at the end of itself,</span></div>
-<div class="line"><a id="l03224" name="l03224"></a><span class="lineno"> 3224</span><span class="comment">       * before the boost.asio handler exits.  See Node::m_sock_events doc header for details. */</span></div>
-<div class="line"><a id="l03225" name="l03225"></a><span class="lineno"> 3225</span>      {</div>
-<div class="line"><a id="l03226" name="l03226"></a><span class="lineno"> 3226</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Already closed/logged/etc.</span></div>
-<div class="line"><a id="l03227" name="l03227"></a><span class="lineno"> 3227</span>      }</div>
-<div class="line"><a id="l03228" name="l03228"></a><span class="lineno"> 3228</span>      <span class="comment">// else</span></div>
-<div class="line"><a id="l03229" name="l03229"></a><span class="lineno"> 3229</span> </div>
-<div class="line"><a id="l03230" name="l03230"></a><span class="lineno"> 3230</span>      <span class="comment">/* Save a ref-counted pointer (to what includes packet data) in retransmission queue.  We&#39;ll soon remove such</span></div>
-<div class="line"><a id="l03231" name="l03231"></a><span class="lineno"> 3231</span><span class="comment">       * a pointer from snd_flying_pkts*, lowering the ref-count again.  In other words, we are moving the sent-packet</span></div>
-<div class="line"><a id="l03232" name="l03232"></a><span class="lineno"> 3232</span><span class="comment">       * object from snd_flying_pkts* to snd_rexmit_q (Dropped -&gt; In-flight).</span></div>
-<div class="line"><a id="l03233" name="l03233"></a><span class="lineno"> 3233</span><span class="comment">       *</span></div>
-<div class="line"><a id="l03234" name="l03234"></a><span class="lineno"> 3234</span><span class="comment">       * Insert at the same position each time to ultimately arrange them in the reversed order that we want. */</span></div>
-<div class="line"><a id="l03235" name="l03235"></a><span class="lineno"> 3235</span>      snd_rexmit_q_fulcrum_it = snd_rexmit_q.insert(snd_rexmit_q_fulcrum_it, sent_pkt);</div>
-<div class="line"><a id="l03236" name="l03236"></a><span class="lineno"> 3236</span>      ++sock-&gt;m_snd_rexmit_q_size;</div>
-<div class="line"><a id="l03237" name="l03237"></a><span class="lineno"> 3237</span>    }</div>
-<div class="line"><a id="l03238" name="l03238"></a><span class="lineno"> 3238</span> </div>
-<div class="line"><a id="l03239" name="l03239"></a><span class="lineno"> 3239</span>    <span class="comment">/* Finally, we can erase it from snd_flying_pkts* and adjust snd_flying_bytes.</span></div>
-<div class="line"><a id="l03240" name="l03240"></a><span class="lineno"> 3240</span><span class="comment">     * Will NOT invalidate other iterators into snd_flying_pkts_by_when.</span></div>
-<div class="line"><a id="l03241" name="l03241"></a><span class="lineno"> 3241</span><span class="comment">     *</span></div>
-<div class="line"><a id="l03242" name="l03242"></a><span class="lineno"> 3242</span><span class="comment">     * Also, save in pkts-&gt;pkts_marked_to_drop as advertised. */</span></div>
-<div class="line"><a id="l03243" name="l03243"></a><span class="lineno"> 3243</span> </div>
-<div class="line"><a id="l03244" name="l03244"></a><span class="lineno"> 3244</span>    <span class="keyword">static_assert</span></div>
-<div class="line"><a id="l03245" name="l03245"></a><span class="lineno"> 3245</span>      (!<a class="code hl_class" href="classflow_1_1util_1_1Container__traits.html">util::Container_traits&lt;Peer_socket::Sent_pkt_by_sent_when_map&gt;::S_CHANGE_INVALIDATES_ITERATORS</a>,</div>
-<div class="line"><a id="l03246" name="l03246"></a><span class="lineno"> 3246</span>       <span class="stringliteral">&quot;Scoreboard must not get otherwise changed when a packet is erased.&quot;</span>);</div>
-<div class="line"><a id="l03247" name="l03247"></a><span class="lineno"> 3247</span>    pkts_marked_to_drop-&gt;push_back(sent_when.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">m_order_num</a>);</div>
-<div class="line"><a id="l03248" name="l03248"></a><span class="lineno"> 3248</span>    snd_flying_pkts_erase_one(sock, pkt_it);</div>
+<div class="line"><a id="l03214" name="l03214"></a><span class="lineno"> 3214</span>      <span class="keywordflow">else</span></div>
+<div class="line"><a id="l03215" name="l03215"></a><span class="lineno"> 3215</span>      {</div>
+<div class="line"><a id="l03216" name="l03216"></a><span class="lineno"> 3216</span>        <span class="comment">// Only got here if this packet and all Dropped packets after it are part of a new loss event.</span></div>
+<div class="line"><a id="l03217" name="l03217"></a><span class="lineno"> 3217</span>        *cong_ctl_dropped_bytes += sent_pkt-&gt;m_size;</div>
+<div class="line"><a id="l03218" name="l03218"></a><span class="lineno"> 3218</span>        ++(*cong_ctl_dropped_pkts);</div>
+<div class="line"><a id="l03219" name="l03219"></a><span class="lineno"> 3219</span>      }</div>
+<div class="line"><a id="l03220" name="l03220"></a><span class="lineno"> 3220</span>    }</div>
+<div class="line"><a id="l03221" name="l03221"></a><span class="lineno"> 3221</span>    <span class="comment">// else { Already found end of new loss event, if any, so no need to keep looking for it. }</span></div>
+<div class="line"><a id="l03222" name="l03222"></a><span class="lineno"> 3222</span> </div>
+<div class="line"><a id="l03223" name="l03223"></a><span class="lineno"> 3223</span>    <span class="comment">// Add to retransmission queue if applicable.</span></div>
+<div class="line"><a id="l03224" name="l03224"></a><span class="lineno"> 3224</span> </div>
+<div class="line"><a id="l03225" name="l03225"></a><span class="lineno"> 3225</span>    <span class="keywordflow">if</span> (<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>)</div>
+<div class="line"><a id="l03226" name="l03226"></a><span class="lineno"> 3226</span>    {</div>
+<div class="line"><a id="l03227" name="l03227"></a><span class="lineno"> 3227</span>      <span class="keywordflow">if</span> (!ok_to_rexmit_or_close(sock, pkt_it, <span class="keyword">true</span>)) <span class="comment">// Ensure not too many retransmissions already.</span></div>
+<div class="line"><a id="l03228" name="l03228"></a><span class="lineno"> 3228</span>      <span class="comment">/* ^-- defer_delta_check == true: because the only way to get to this method is from</span></div>
+<div class="line"><a id="l03229" name="l03229"></a><span class="lineno"> 3229</span><span class="comment">       * async_low_lvl_recv(), which will perform event_set_all_check_delta(false) at the end of itself,</span></div>
+<div class="line"><a id="l03230" name="l03230"></a><span class="lineno"> 3230</span><span class="comment">       * before the boost.asio handler exits.  See Node::m_sock_events doc header for details. */</span></div>
+<div class="line"><a id="l03231" name="l03231"></a><span class="lineno"> 3231</span>      {</div>
+<div class="line"><a id="l03232" name="l03232"></a><span class="lineno"> 3232</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>; <span class="comment">// Already closed/logged/etc.</span></div>
+<div class="line"><a id="l03233" name="l03233"></a><span class="lineno"> 3233</span>      }</div>
+<div class="line"><a id="l03234" name="l03234"></a><span class="lineno"> 3234</span>      <span class="comment">// else</span></div>
+<div class="line"><a id="l03235" name="l03235"></a><span class="lineno"> 3235</span> </div>
+<div class="line"><a id="l03236" name="l03236"></a><span class="lineno"> 3236</span>      <span class="comment">/* Save a ref-counted pointer (to what includes packet data) in retransmission queue.  We&#39;ll soon remove such</span></div>
+<div class="line"><a id="l03237" name="l03237"></a><span class="lineno"> 3237</span><span class="comment">       * a pointer from snd_flying_pkts*, lowering the ref-count again.  In other words, we are moving the sent-packet</span></div>
+<div class="line"><a id="l03238" name="l03238"></a><span class="lineno"> 3238</span><span class="comment">       * object from snd_flying_pkts* to snd_rexmit_q (Dropped -&gt; In-flight).</span></div>
+<div class="line"><a id="l03239" name="l03239"></a><span class="lineno"> 3239</span><span class="comment">       *</span></div>
+<div class="line"><a id="l03240" name="l03240"></a><span class="lineno"> 3240</span><span class="comment">       * Insert at the same position each time to ultimately arrange them in the reversed order that we want. */</span></div>
+<div class="line"><a id="l03241" name="l03241"></a><span class="lineno"> 3241</span>      snd_rexmit_q_fulcrum_it = snd_rexmit_q.insert(snd_rexmit_q_fulcrum_it, sent_pkt);</div>
+<div class="line"><a id="l03242" name="l03242"></a><span class="lineno"> 3242</span>      ++sock-&gt;m_snd_rexmit_q_size;</div>
+<div class="line"><a id="l03243" name="l03243"></a><span class="lineno"> 3243</span>    }</div>
+<div class="line"><a id="l03244" name="l03244"></a><span class="lineno"> 3244</span> </div>
+<div class="line"><a id="l03245" name="l03245"></a><span class="lineno"> 3245</span>    <span class="comment">/* Finally, we can erase it from snd_flying_pkts* and adjust snd_flying_bytes.</span></div>
+<div class="line"><a id="l03246" name="l03246"></a><span class="lineno"> 3246</span><span class="comment">     * Will NOT invalidate other iterators into snd_flying_pkts_by_when.</span></div>
+<div class="line"><a id="l03247" name="l03247"></a><span class="lineno"> 3247</span><span class="comment">     *</span></div>
+<div class="line"><a id="l03248" name="l03248"></a><span class="lineno"> 3248</span><span class="comment">     * Also, save in pkts-&gt;pkts_marked_to_drop as advertised. */</span></div>
 <div class="line"><a id="l03249" name="l03249"></a><span class="lineno"> 3249</span> </div>
-<div class="line"><a id="l03250" name="l03250"></a><span class="lineno"> 3250</span>    pkt_it = next_pkt_it;</div>
-<div class="line"><a id="l03251" name="l03251"></a><span class="lineno"> 3251</span>  } <span class="comment">// while (pkt_it != snd_flying_pkts_by_when.past_oldest())</span></div>
-<div class="line"><a id="l03252" name="l03252"></a><span class="lineno"> 3252</span> </div>
-<div class="line"><a id="l03253" name="l03253"></a><span class="lineno"> 3253</span>  <span class="comment">// Includes ALL Dropped packets (not just ones from new loss event, if any), so != cong_ctl_dropped_pkts.</span></div>
-<div class="line"><a id="l03254" name="l03254"></a><span class="lineno"> 3254</span>  *dropped_pkts -= snd_flying_pkts_by_when.size(); <span class="comment">// Subtract &quot;after&quot; from &quot;before&quot; to get dropped count.</span></div>
-<div class="line"><a id="l03255" name="l03255"></a><span class="lineno"> 3255</span>  *dropped_bytes -= sock-&gt;m_snd_flying_bytes; <span class="comment">// Similar.</span></div>
-<div class="line"><a id="l03256" name="l03256"></a><span class="lineno"> 3256</span> </div>
-<div class="line"><a id="l03257" name="l03257"></a><span class="lineno"> 3257</span>  <span class="keywordflow">if</span> (*cong_ctl_dropped_pkts != 0)</div>
-<div class="line"><a id="l03258" name="l03258"></a><span class="lineno"> 3258</span>  {</div>
-<div class="line"><a id="l03259" name="l03259"></a><span class="lineno"> 3259</span>    <span class="comment">// Register that we&#39;ve detected a NEW loss event (not the same as dropped_data() -- see that elsewhere).</span></div>
-<div class="line"><a id="l03260" name="l03260"></a><span class="lineno"> 3260</span>    snd_stats.loss_event();</div>
-<div class="line"><a id="l03261" name="l03261"></a><span class="lineno"> 3261</span>  }</div>
+<div class="line"><a id="l03250" name="l03250"></a><span class="lineno"> 3250</span>    <span class="keyword">static_assert</span></div>
+<div class="line"><a id="l03251" name="l03251"></a><span class="lineno"> 3251</span>      (!<a class="code hl_class" href="classflow_1_1util_1_1Container__traits.html">util::Container_traits&lt;Peer_socket::Sent_pkt_by_sent_when_map&gt;::S_CHANGE_INVALIDATES_ITERATORS</a>,</div>
+<div class="line"><a id="l03252" name="l03252"></a><span class="lineno"> 3252</span>       <span class="stringliteral">&quot;Scoreboard must not get otherwise changed when a packet is erased.&quot;</span>);</div>
+<div class="line"><a id="l03253" name="l03253"></a><span class="lineno"> 3253</span>    pkts_marked_to_drop-&gt;push_back(sent_when.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">m_order_num</a>);</div>
+<div class="line"><a id="l03254" name="l03254"></a><span class="lineno"> 3254</span>    snd_flying_pkts_erase_one(sock, pkt_it);</div>
+<div class="line"><a id="l03255" name="l03255"></a><span class="lineno"> 3255</span> </div>
+<div class="line"><a id="l03256" name="l03256"></a><span class="lineno"> 3256</span>    pkt_it = next_pkt_it;</div>
+<div class="line"><a id="l03257" name="l03257"></a><span class="lineno"> 3257</span>  } <span class="comment">// while (pkt_it != snd_flying_pkts_by_when.past_oldest())</span></div>
+<div class="line"><a id="l03258" name="l03258"></a><span class="lineno"> 3258</span> </div>
+<div class="line"><a id="l03259" name="l03259"></a><span class="lineno"> 3259</span>  <span class="comment">// Includes ALL Dropped packets (not just ones from new loss event, if any), so != cong_ctl_dropped_pkts.</span></div>
+<div class="line"><a id="l03260" name="l03260"></a><span class="lineno"> 3260</span>  *dropped_pkts -= snd_flying_pkts_by_when.size(); <span class="comment">// Subtract &quot;after&quot; from &quot;before&quot; to get dropped count.</span></div>
+<div class="line"><a id="l03261" name="l03261"></a><span class="lineno"> 3261</span>  *dropped_bytes -= sock-&gt;m_snd_flying_bytes; <span class="comment">// Similar.</span></div>
 <div class="line"><a id="l03262" name="l03262"></a><span class="lineno"> 3262</span> </div>
-<div class="line"><a id="l03263" name="l03263"></a><span class="lineno"> 3263</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
-<div class="line"><a id="l03264" name="l03264"></a><span class="lineno"> 3264</span>} <span class="comment">// Node::drop_pkts_on_acks()</span></div>
-<div class="line"><a id="l03265" name="l03265"></a><span class="lineno"> 3265</span> </div>
-<div class="line"><a id="l03266" name="l03266"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a1bfde94f7d529ea8e6c26b560abfa9c7"> 3266</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a1bfde94f7d529ea8e6c26b560abfa9c7">Node::log_accumulated_acks</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
-<div class="line"><a id="l03267" name="l03267"></a><span class="lineno"> 3267</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l03268" name="l03268"></a><span class="lineno"> 3268</span>  <span class="keyword">using </span>boost::algorithm::join;</div>
-<div class="line"><a id="l03269" name="l03269"></a><span class="lineno"> 3269</span>  <span class="keyword">using </span>boost::chrono::symbol_format;</div>
-<div class="line"><a id="l03270" name="l03270"></a><span class="lineno"> 3270</span>  <span class="keyword">using </span>std::string;</div>
-<div class="line"><a id="l03271" name="l03271"></a><span class="lineno"> 3271</span>  <span class="keyword">using </span>std::vector;</div>
-<div class="line"><a id="l03272" name="l03272"></a><span class="lineno"> 3272</span>  <span class="keyword">using </span>std::transform;</div>
-<div class="line"><a id="l03273" name="l03273"></a><span class="lineno"> 3273</span>  <span class="keyword">using </span>std::ostream;</div>
-<div class="line"><a id="l03274" name="l03274"></a><span class="lineno"> 3274</span> </div>
-<div class="line"><a id="l03275" name="l03275"></a><span class="lineno"> 3275</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l03276" name="l03276"></a><span class="lineno"> 3276</span> </div>
-<div class="line"><a id="l03277" name="l03277"></a><span class="lineno"> 3277</span>  <span class="comment">// This helper of handle_accumulated_acks() just logs the individual acks about to be processed.</span></div>
-<div class="line"><a id="l03278" name="l03278"></a><span class="lineno"> 3278</span> </div>
-<div class="line"><a id="l03279" name="l03279"></a><span class="lineno"> 3279</span>  <span class="comment">// For brevity and a little speed:</span></div>
-<div class="line"><a id="l03280" name="l03280"></a><span class="lineno"> 3280</span>  <span class="keyword">using </span>Ack = <a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">Ack_packet::Individual_ack</a>;</div>
-<div class="line"><a id="l03281" name="l03281"></a><span class="lineno"> 3281</span>  <span class="keyword">using </span>Acks = vector&lt;Ack::Ptr&gt;;</div>
-<div class="line"><a id="l03282" name="l03282"></a><span class="lineno"> 3282</span>  <span class="keyword">const</span> Acks&amp; acked_packets = sock-&gt;m_rcv_acked_packets;</div>
-<div class="line"><a id="l03283" name="l03283"></a><span class="lineno"> 3283</span> </div>
-<div class="line"><a id="l03284" name="l03284"></a><span class="lineno"> 3284</span>  <span class="keyword">auto</span> <span class="keyword">const</span> logger_ptr = <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>();</div>
-<div class="line"><a id="l03285" name="l03285"></a><span class="lineno"> 3285</span>  <span class="keywordflow">if</span> (logger_ptr &amp;&amp; logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">log::Sev::S_DATA</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>())) <span class="comment">// Very verbose and slow!</span></div>
-<div class="line"><a id="l03286" name="l03286"></a><span class="lineno"> 3286</span>  {</div>
-<div class="line"><a id="l03287" name="l03287"></a><span class="lineno"> 3287</span>    <span class="comment">// Prepare serialization of m_rcv_acked_packets for TRACE logging; quite verbose and slow!</span></div>
-<div class="line"><a id="l03288" name="l03288"></a><span class="lineno"> 3288</span>    vector&lt;string&gt; ack_strs(acked_packets.size());</div>
-<div class="line"><a id="l03289" name="l03289"></a><span class="lineno"> 3289</span>    transform(acked_packets.begin(), acked_packets.end(), ack_strs.begin(),</div>
-<div class="line"><a id="l03290" name="l03290"></a><span class="lineno"> 3290</span>              [](Ack::Const_ptr ack) -&gt; <span class="keywordtype">string</span></div>
-<div class="line"><a id="l03291" name="l03291"></a><span class="lineno"> 3291</span>    {</div>
-<div class="line"><a id="l03292" name="l03292"></a><span class="lineno"> 3292</span>      return util::ostream_op_string(<span class="stringliteral">&#39;[&#39;</span>, ack-&gt;m_seq_num, <span class="stringliteral">&quot;, &quot;</span>, int(ack-&gt;m_rexmit_id), <span class="stringliteral">&quot;, &quot;</span>,</div>
-<div class="line"><a id="l03293" name="l03293"></a><span class="lineno"> 3293</span>                                     symbol_format,</div>
-<div class="line"><a id="l03294" name="l03294"></a><span class="lineno"> 3294</span>                                     ack-&gt;m_delay, <span class="stringliteral">&#39;]&#39;</span>); <span class="comment">// &quot;ns,&quot; not &quot;nanoseconds.&quot;</span></div>
-<div class="line"><a id="l03295" name="l03295"></a><span class="lineno"> 3295</span>    });</div>
-<div class="line"><a id="l03296" name="l03296"></a><span class="lineno"> 3296</span>    <span class="keyword">const</span> <span class="keywordtype">string</span> ack_str = join(ack_strs, <span class="stringliteral">&quot; &quot;</span>);</div>
-<div class="line"><a id="l03297" name="l03297"></a><span class="lineno"> 3297</span> </div>
-<div class="line"><a id="l03298" name="l03298"></a><span class="lineno"> 3298</span>    <a class="code hl_define" href="log_8hpp.html#a9aa1d91ba9eb26345d4b83588ac489cb">FLOW_LOG_DATA_WITHOUT_CHECKING</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
-<div class="line"><a id="l03299" name="l03299"></a><span class="lineno"> 3299</span>                                   <span class="stringliteral">&quot;Accumulated [ACK] packets with &quot;</span></div>
-<div class="line"><a id="l03300" name="l03300"></a><span class="lineno"> 3300</span>                                   <span class="stringliteral">&quot;acknowledgments [seq_num, rexmit_id, delay]: &quot;</span></div>
-<div class="line"><a id="l03301" name="l03301"></a><span class="lineno"> 3301</span>                                   <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; ack_str &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l03302" name="l03302"></a><span class="lineno"> 3302</span>  } <span class="comment">// if (DATA)</span></div>
-<div class="line"><a id="l03303" name="l03303"></a><span class="lineno"> 3303</span>  <span class="keywordflow">else</span></div>
-<div class="line"><a id="l03304" name="l03304"></a><span class="lineno"> 3304</span>  {</div>
-<div class="line"><a id="l03305" name="l03305"></a><span class="lineno"> 3305</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
-<div class="line"><a id="l03306" name="l03306"></a><span class="lineno"> 3306</span>                   <span class="stringliteral">&quot;Accumulated [ACK] packets with &quot;</span></div>
-<div class="line"><a id="l03307" name="l03307"></a><span class="lineno"> 3307</span>                   <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; acked_packets.size() &lt;&lt; <span class="stringliteral">&quot;] individual acknowledgments.&quot;</span>);</div>
-<div class="line"><a id="l03308" name="l03308"></a><span class="lineno"> 3308</span>  }</div>
-<div class="line"><a id="l03309" name="l03309"></a><span class="lineno"> 3309</span> </div>
-<div class="line"><a id="l03310" name="l03310"></a><span class="lineno"> 3310</span>  <span class="keywordflow">if</span> (sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>)</div>
-<div class="line"><a id="l03311" name="l03311"></a><span class="lineno"> 3311</span>  {</div>
-<div class="line"><a id="l03312" name="l03312"></a><span class="lineno"> 3312</span>    log_snd_window(sock);</div>
-<div class="line"><a id="l03313" name="l03313"></a><span class="lineno"> 3313</span>  }</div>
-<div class="line"><a id="l03314" name="l03314"></a><span class="lineno"> 3314</span>  <span class="comment">// else { Why is this possible?  Answer: See handle_accumulated_acks() for explanation near similar check. }</span></div>
-<div class="line"><a id="l03315" name="l03315"></a><span class="lineno"> 3315</span>} <span class="comment">// Node::log_accumulated_acks()</span></div>
-<div class="line"><a id="l03316" name="l03316"></a><span class="lineno"> 3316</span> </div>
-<div class="line"><a id="l03317" name="l03317"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#affbc6abb1e344c6e98d3ac8068a54670"> 3317</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#affbc6abb1e344c6e98d3ac8068a54670">Node::drop_timer_action</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keywordtype">bool</span> drop_all_packets)</div>
-<div class="line"><a id="l03318" name="l03318"></a><span class="lineno"> 3318</span>{</div>
-<div class="line"><a id="l03319" name="l03319"></a><span class="lineno"> 3319</span>  <span class="keyword">using </span>std::list;</div>
-<div class="line"><a id="l03320" name="l03320"></a><span class="lineno"> 3320</span>  <span class="keyword">using </span>boost::prior;</div>
-<div class="line"><a id="l03321" name="l03321"></a><span class="lineno"> 3321</span> </div>
-<div class="line"><a id="l03322" name="l03322"></a><span class="lineno"> 3322</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l03323" name="l03323"></a><span class="lineno"> 3323</span> </div>
-<div class="line"><a id="l03324" name="l03324"></a><span class="lineno"> 3324</span>  <span class="comment">// Since we call m_snd_drop_timer-&gt;done() when exiting ESTABLISHED, this should hold.</span></div>
-<div class="line"><a id="l03325" name="l03325"></a><span class="lineno"> 3325</span>  assert(sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>);</div>
-<div class="line"><a id="l03326" name="l03326"></a><span class="lineno"> 3326</span> </div>
-<div class="line"><a id="l03327" name="l03327"></a><span class="lineno"> 3327</span>  <span class="comment">// For brevity and a bit of speed:</span></div>
-<div class="line"><a id="l03328" name="l03328"></a><span class="lineno"> 3328</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
-<div class="line"><a id="l03329" name="l03329"></a><span class="lineno"> 3329</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_seq = sock-&gt;m_snd_flying_pkts_by_seq_num;</div>
-<div class="line"><a id="l03330" name="l03330"></a><span class="lineno"> 3330</span> </div>
-<div class="line"><a id="l03331" name="l03331"></a><span class="lineno"> 3331</span>  <span class="comment">// Timer must not be running if there are no In-flight packets.  Thus it should not have fired.</span></div>
-<div class="line"><a id="l03332" name="l03332"></a><span class="lineno"> 3332</span>  assert(!snd_flying_pkts_by_when.empty());</div>
-<div class="line"><a id="l03333" name="l03333"></a><span class="lineno"> 3333</span> </div>
-<div class="line"><a id="l03334" name="l03334"></a><span class="lineno"> 3334</span>  <span class="comment">/* Drop Timer fired and is telling us to consider Dropped some packets.  If drop_all_packets, then</span></div>
-<div class="line"><a id="l03335" name="l03335"></a><span class="lineno"> 3335</span><span class="comment">   * it&#39;s all of them.  Otherwise it&#39;s just the earliest unacknowledged packet</span></div>
-<div class="line"><a id="l03336" name="l03336"></a><span class="lineno"> 3336</span><span class="comment">   * (m_snd_flying_pkts_by_sent_when.begin()). */</span></div>
-<div class="line"><a id="l03337" name="l03337"></a><span class="lineno"> 3337</span> </div>
-<div class="line"><a id="l03338" name="l03338"></a><span class="lineno"> 3338</span>  <span class="comment">// Log details of the In-flight packets before we change things.</span></div>
-<div class="line"><a id="l03339" name="l03339"></a><span class="lineno"> 3339</span>  log_snd_window(sock);</div>
-<div class="line"><a id="l03340" name="l03340"></a><span class="lineno"> 3340</span> </div>
-<div class="line"><a id="l03341" name="l03341"></a><span class="lineno"> 3341</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> = sock-&gt;rexmit_on();</div>
-<div class="line"><a id="l03342" name="l03342"></a><span class="lineno"> 3342</span>  <span class="comment">// To check, at the end, whether we&#39;ve changed can_send() false =&gt; true.</span></div>
-<div class="line"><a id="l03343" name="l03343"></a><span class="lineno"> 3343</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> could_send_before_drops = can_send(sock);</div>
-<div class="line"><a id="l03344" name="l03344"></a><span class="lineno"> 3344</span>  <span class="comment">// To check, at the end, whether we&#39;ve changed snd_deqable() false =&gt; true.</span></div>
-<div class="line"><a id="l03345" name="l03345"></a><span class="lineno"> 3345</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> had_rexmit_data_before_drops = !sock-&gt;m_snd_rexmit_q.empty();</div>
-<div class="line"><a id="l03346" name="l03346"></a><span class="lineno"> 3346</span>  <span class="comment">// Will store ID of the one packet to drop; reserved value 0 will mean ALL packets are dropped.</span></div>
-<div class="line"><a id="l03347" name="l03347"></a><span class="lineno"> 3347</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">Peer_socket::order_num_t</a> packet_marked_to_drop_or_drop_all;</div>
-<div class="line"><a id="l03348" name="l03348"></a><span class="lineno"> 3348</span> </div>
-<div class="line"><a id="l03349" name="l03349"></a><span class="lineno"> 3349</span>  <span class="comment">// Used below for congestion control.</span></div>
-<div class="line"><a id="l03350" name="l03350"></a><span class="lineno"> 3350</span>  <span class="keywordtype">size_t</span> cong_ctl_dropped_bytes = 0;</div>
-<div class="line"><a id="l03351" name="l03351"></a><span class="lineno"> 3351</span>  <span class="keywordtype">size_t</span> cong_ctl_dropped_pkts = 0;</div>
-<div class="line"><a id="l03352" name="l03352"></a><span class="lineno"> 3352</span> </div>
-<div class="line"><a id="l03353" name="l03353"></a><span class="lineno"> 3353</span>  <span class="keywordflow">if</span> (drop_all_packets)</div>
-<div class="line"><a id="l03354" name="l03354"></a><span class="lineno"> 3354</span>  {</div>
-<div class="line"><a id="l03355" name="l03355"></a><span class="lineno"> 3355</span>    cong_ctl_dropped_bytes = sock-&gt;m_snd_flying_bytes;</div>
-<div class="line"><a id="l03356" name="l03356"></a><span class="lineno"> 3356</span>    cong_ctl_dropped_pkts = snd_flying_pkts_by_when.size();</div>
-<div class="line"><a id="l03357" name="l03357"></a><span class="lineno"> 3357</span> </div>
-<div class="line"><a id="l03358" name="l03358"></a><span class="lineno"> 3358</span>    <span class="comment">// Queue them for retransmission, to be sent as soon as CWND provides enough space (could even be immediately).</span></div>
-<div class="line"><a id="l03359" name="l03359"></a><span class="lineno"> 3359</span>    <span class="keywordflow">if</span> (<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>)</div>
-<div class="line"><a id="l03360" name="l03360"></a><span class="lineno"> 3360</span>    {</div>
-<div class="line"><a id="l03361" name="l03361"></a><span class="lineno"> 3361</span>      <span class="comment">// Order is from earliest-sent to latest-sent (retransmission in the same order as transmission).</span></div>
-<div class="line"><a id="l03362" name="l03362"></a><span class="lineno"> 3362</span>      <span class="keywordflow">for</span> (<a class="code hl_typedef" href="classflow_1_1util_1_1Linked__hash__map.html#a18f09acd8df06d9479840862b228463d">Peer_socket::Sent_pkt_by_sent_when_map::Reverse_iterator</a> pkt_it = snd_flying_pkts_by_when.oldest();</div>
-<div class="line"><a id="l03363" name="l03363"></a><span class="lineno"> 3363</span>           pkt_it != snd_flying_pkts_by_when.past_newest();</div>
-<div class="line"><a id="l03364" name="l03364"></a><span class="lineno"> 3364</span>           ++pkt_it)</div>
-<div class="line"><a id="l03365" name="l03365"></a><span class="lineno"> 3365</span>      {</div>
-<div class="line"><a id="l03366" name="l03366"></a><span class="lineno"> 3366</span>        <span class="comment">// The forward iterator F pointing to same list element as reverse iterator R is prior(R.base()). Google it.</span></div>
-<div class="line"><a id="l03367" name="l03367"></a><span class="lineno"> 3367</span>        <span class="keywordflow">if</span> (!ok_to_rexmit_or_close(sock, prior(pkt_it.base()), <span class="keyword">false</span>)) <span class="comment">// Ensure not too many retransmissions already.</span></div>
-<div class="line"><a id="l03368" name="l03368"></a><span class="lineno"> 3368</span>        <span class="comment">/* ^-- defer_delta_check == false: because we were invoked from a timer event.  Therefore, we will NOT perform</span></div>
-<div class="line"><a id="l03369" name="l03369"></a><span class="lineno"> 3369</span><span class="comment">         * event_set_all_check_delta(false) before the boost.asio handler exits.  Therefore boost.asio</span></div>
-<div class="line"><a id="l03370" name="l03370"></a><span class="lineno"> 3370</span><span class="comment">         * may sleep (block) before event_set_all_check_delta(false).  Therefore that would delay</span></div>
-<div class="line"><a id="l03371" name="l03371"></a><span class="lineno"> 3371</span><span class="comment">         * delivery of the event to the user.  Therefore force the delta check immediately.  See</span></div>
-<div class="line"><a id="l03372" name="l03372"></a><span class="lineno"> 3372</span><span class="comment">         * Node::m_sock_events doc header for details. */</span></div>
-<div class="line"><a id="l03373" name="l03373"></a><span class="lineno"> 3373</span>        {</div>
-<div class="line"><a id="l03374" name="l03374"></a><span class="lineno"> 3374</span>          <span class="keywordflow">return</span>; <span class="comment">// Already closed/logged/etc.</span></div>
-<div class="line"><a id="l03375" name="l03375"></a><span class="lineno"> 3375</span>        }</div>
-<div class="line"><a id="l03376" name="l03376"></a><span class="lineno"> 3376</span>        <span class="comment">// else</span></div>
-<div class="line"><a id="l03377" name="l03377"></a><span class="lineno"> 3377</span> </div>
-<div class="line"><a id="l03378" name="l03378"></a><span class="lineno"> 3378</span>        sock-&gt;m_snd_rexmit_q.push_back(pkt_it-&gt;second); <span class="comment">// Only a ref-counted pointer copy (constant time).</span></div>
-<div class="line"><a id="l03379" name="l03379"></a><span class="lineno"> 3379</span>      }</div>
-<div class="line"><a id="l03380" name="l03380"></a><span class="lineno"> 3380</span>      sock-&gt;m_snd_rexmit_q_size += cong_ctl_dropped_pkts;</div>
-<div class="line"><a id="l03381" name="l03381"></a><span class="lineno"> 3381</span>    }</div>
-<div class="line"><a id="l03382" name="l03382"></a><span class="lineno"> 3382</span>    <span class="comment">// else { Just drop it. }</span></div>
+<div class="line"><a id="l03263" name="l03263"></a><span class="lineno"> 3263</span>  <span class="keywordflow">if</span> (*cong_ctl_dropped_pkts != 0)</div>
+<div class="line"><a id="l03264" name="l03264"></a><span class="lineno"> 3264</span>  {</div>
+<div class="line"><a id="l03265" name="l03265"></a><span class="lineno"> 3265</span>    <span class="comment">// Register that we&#39;ve detected a NEW loss event (not the same as dropped_data() -- see that elsewhere).</span></div>
+<div class="line"><a id="l03266" name="l03266"></a><span class="lineno"> 3266</span>    snd_stats.loss_event();</div>
+<div class="line"><a id="l03267" name="l03267"></a><span class="lineno"> 3267</span>  }</div>
+<div class="line"><a id="l03268" name="l03268"></a><span class="lineno"> 3268</span> </div>
+<div class="line"><a id="l03269" name="l03269"></a><span class="lineno"> 3269</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
+<div class="line"><a id="l03270" name="l03270"></a><span class="lineno"> 3270</span>} <span class="comment">// Node::drop_pkts_on_acks()</span></div>
+<div class="line"><a id="l03271" name="l03271"></a><span class="lineno"> 3271</span> </div>
+<div class="line"><a id="l03272" name="l03272"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a1bfde94f7d529ea8e6c26b560abfa9c7"> 3272</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a1bfde94f7d529ea8e6c26b560abfa9c7">Node::log_accumulated_acks</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
+<div class="line"><a id="l03273" name="l03273"></a><span class="lineno"> 3273</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l03274" name="l03274"></a><span class="lineno"> 3274</span>  <span class="keyword">using </span>boost::algorithm::join;</div>
+<div class="line"><a id="l03275" name="l03275"></a><span class="lineno"> 3275</span>  <span class="keyword">using </span>boost::chrono::symbol_format;</div>
+<div class="line"><a id="l03276" name="l03276"></a><span class="lineno"> 3276</span>  <span class="keyword">using </span>std::string;</div>
+<div class="line"><a id="l03277" name="l03277"></a><span class="lineno"> 3277</span>  <span class="keyword">using </span>std::vector;</div>
+<div class="line"><a id="l03278" name="l03278"></a><span class="lineno"> 3278</span>  <span class="keyword">using </span>std::transform;</div>
+<div class="line"><a id="l03279" name="l03279"></a><span class="lineno"> 3279</span>  <span class="keyword">using </span>std::ostream;</div>
+<div class="line"><a id="l03280" name="l03280"></a><span class="lineno"> 3280</span> </div>
+<div class="line"><a id="l03281" name="l03281"></a><span class="lineno"> 3281</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l03282" name="l03282"></a><span class="lineno"> 3282</span> </div>
+<div class="line"><a id="l03283" name="l03283"></a><span class="lineno"> 3283</span>  <span class="comment">// This helper of handle_accumulated_acks() just logs the individual acks about to be processed.</span></div>
+<div class="line"><a id="l03284" name="l03284"></a><span class="lineno"> 3284</span> </div>
+<div class="line"><a id="l03285" name="l03285"></a><span class="lineno"> 3285</span>  <span class="comment">// For brevity and a little speed:</span></div>
+<div class="line"><a id="l03286" name="l03286"></a><span class="lineno"> 3286</span>  <span class="keyword">using </span>Ack = <a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">Ack_packet::Individual_ack</a>;</div>
+<div class="line"><a id="l03287" name="l03287"></a><span class="lineno"> 3287</span>  <span class="keyword">using </span>Acks = vector&lt;Ack::Ptr&gt;;</div>
+<div class="line"><a id="l03288" name="l03288"></a><span class="lineno"> 3288</span>  <span class="keyword">const</span> Acks&amp; acked_packets = sock-&gt;m_rcv_acked_packets;</div>
+<div class="line"><a id="l03289" name="l03289"></a><span class="lineno"> 3289</span> </div>
+<div class="line"><a id="l03290" name="l03290"></a><span class="lineno"> 3290</span>  <span class="keyword">auto</span> <span class="keyword">const</span> logger_ptr = <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>();</div>
+<div class="line"><a id="l03291" name="l03291"></a><span class="lineno"> 3291</span>  <span class="keywordflow">if</span> (logger_ptr &amp;&amp; logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">log::Sev::S_DATA</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>())) <span class="comment">// Very verbose and slow!</span></div>
+<div class="line"><a id="l03292" name="l03292"></a><span class="lineno"> 3292</span>  {</div>
+<div class="line"><a id="l03293" name="l03293"></a><span class="lineno"> 3293</span>    <span class="comment">// Prepare serialization of m_rcv_acked_packets for TRACE logging; quite verbose and slow!</span></div>
+<div class="line"><a id="l03294" name="l03294"></a><span class="lineno"> 3294</span>    vector&lt;string&gt; ack_strs(acked_packets.size());</div>
+<div class="line"><a id="l03295" name="l03295"></a><span class="lineno"> 3295</span>    transform(acked_packets.begin(), acked_packets.end(), ack_strs.begin(),</div>
+<div class="line"><a id="l03296" name="l03296"></a><span class="lineno"> 3296</span>              [](Ack::Const_ptr ack) -&gt; <span class="keywordtype">string</span></div>
+<div class="line"><a id="l03297" name="l03297"></a><span class="lineno"> 3297</span>    {</div>
+<div class="line"><a id="l03298" name="l03298"></a><span class="lineno"> 3298</span>      return util::ostream_op_string(<span class="stringliteral">&#39;[&#39;</span>, ack-&gt;m_seq_num, <span class="stringliteral">&quot;, &quot;</span>, int(ack-&gt;m_rexmit_id), <span class="stringliteral">&quot;, &quot;</span>,</div>
+<div class="line"><a id="l03299" name="l03299"></a><span class="lineno"> 3299</span>                                     symbol_format,</div>
+<div class="line"><a id="l03300" name="l03300"></a><span class="lineno"> 3300</span>                                     ack-&gt;m_delay, <span class="stringliteral">&#39;]&#39;</span>); <span class="comment">// &quot;ns,&quot; not &quot;nanoseconds.&quot;</span></div>
+<div class="line"><a id="l03301" name="l03301"></a><span class="lineno"> 3301</span>    });</div>
+<div class="line"><a id="l03302" name="l03302"></a><span class="lineno"> 3302</span>    <span class="keyword">const</span> <span class="keywordtype">string</span> ack_str = join(ack_strs, <span class="stringliteral">&quot; &quot;</span>);</div>
+<div class="line"><a id="l03303" name="l03303"></a><span class="lineno"> 3303</span> </div>
+<div class="line"><a id="l03304" name="l03304"></a><span class="lineno"> 3304</span>    <a class="code hl_define" href="log_8hpp.html#a9aa1d91ba9eb26345d4b83588ac489cb">FLOW_LOG_DATA_WITHOUT_CHECKING</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
+<div class="line"><a id="l03305" name="l03305"></a><span class="lineno"> 3305</span>                                   <span class="stringliteral">&quot;Accumulated [ACK] packets with &quot;</span></div>
+<div class="line"><a id="l03306" name="l03306"></a><span class="lineno"> 3306</span>                                   <span class="stringliteral">&quot;acknowledgments [seq_num, rexmit_id, delay]: &quot;</span></div>
+<div class="line"><a id="l03307" name="l03307"></a><span class="lineno"> 3307</span>                                   <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; ack_str &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l03308" name="l03308"></a><span class="lineno"> 3308</span>  } <span class="comment">// if (DATA)</span></div>
+<div class="line"><a id="l03309" name="l03309"></a><span class="lineno"> 3309</span>  <span class="keywordflow">else</span></div>
+<div class="line"><a id="l03310" name="l03310"></a><span class="lineno"> 3310</span>  {</div>
+<div class="line"><a id="l03311" name="l03311"></a><span class="lineno"> 3311</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;NetFlow worker thread working on [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
+<div class="line"><a id="l03312" name="l03312"></a><span class="lineno"> 3312</span>                   <span class="stringliteral">&quot;Accumulated [ACK] packets with &quot;</span></div>
+<div class="line"><a id="l03313" name="l03313"></a><span class="lineno"> 3313</span>                   <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; acked_packets.size() &lt;&lt; <span class="stringliteral">&quot;] individual acknowledgments.&quot;</span>);</div>
+<div class="line"><a id="l03314" name="l03314"></a><span class="lineno"> 3314</span>  }</div>
+<div class="line"><a id="l03315" name="l03315"></a><span class="lineno"> 3315</span> </div>
+<div class="line"><a id="l03316" name="l03316"></a><span class="lineno"> 3316</span>  <span class="keywordflow">if</span> (sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>)</div>
+<div class="line"><a id="l03317" name="l03317"></a><span class="lineno"> 3317</span>  {</div>
+<div class="line"><a id="l03318" name="l03318"></a><span class="lineno"> 3318</span>    log_snd_window(sock);</div>
+<div class="line"><a id="l03319" name="l03319"></a><span class="lineno"> 3319</span>  }</div>
+<div class="line"><a id="l03320" name="l03320"></a><span class="lineno"> 3320</span>  <span class="comment">// else { Why is this possible?  Answer: See handle_accumulated_acks() for explanation near similar check. }</span></div>
+<div class="line"><a id="l03321" name="l03321"></a><span class="lineno"> 3321</span>} <span class="comment">// Node::log_accumulated_acks()</span></div>
+<div class="line"><a id="l03322" name="l03322"></a><span class="lineno"> 3322</span> </div>
+<div class="line"><a id="l03323" name="l03323"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#affbc6abb1e344c6e98d3ac8068a54670"> 3323</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#affbc6abb1e344c6e98d3ac8068a54670">Node::drop_timer_action</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keywordtype">bool</span> drop_all_packets)</div>
+<div class="line"><a id="l03324" name="l03324"></a><span class="lineno"> 3324</span>{</div>
+<div class="line"><a id="l03325" name="l03325"></a><span class="lineno"> 3325</span>  <span class="keyword">using </span>std::list;</div>
+<div class="line"><a id="l03326" name="l03326"></a><span class="lineno"> 3326</span>  <span class="keyword">using </span>boost::prior;</div>
+<div class="line"><a id="l03327" name="l03327"></a><span class="lineno"> 3327</span> </div>
+<div class="line"><a id="l03328" name="l03328"></a><span class="lineno"> 3328</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l03329" name="l03329"></a><span class="lineno"> 3329</span> </div>
+<div class="line"><a id="l03330" name="l03330"></a><span class="lineno"> 3330</span>  <span class="comment">// Since we call m_snd_drop_timer-&gt;done() when exiting ESTABLISHED, this should hold.</span></div>
+<div class="line"><a id="l03331" name="l03331"></a><span class="lineno"> 3331</span>  assert(sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>);</div>
+<div class="line"><a id="l03332" name="l03332"></a><span class="lineno"> 3332</span> </div>
+<div class="line"><a id="l03333" name="l03333"></a><span class="lineno"> 3333</span>  <span class="comment">// For brevity and a bit of speed:</span></div>
+<div class="line"><a id="l03334" name="l03334"></a><span class="lineno"> 3334</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
+<div class="line"><a id="l03335" name="l03335"></a><span class="lineno"> 3335</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_seq = sock-&gt;m_snd_flying_pkts_by_seq_num;</div>
+<div class="line"><a id="l03336" name="l03336"></a><span class="lineno"> 3336</span> </div>
+<div class="line"><a id="l03337" name="l03337"></a><span class="lineno"> 3337</span>  <span class="comment">// Timer must not be running if there are no In-flight packets.  Thus it should not have fired.</span></div>
+<div class="line"><a id="l03338" name="l03338"></a><span class="lineno"> 3338</span>  assert(!snd_flying_pkts_by_when.empty());</div>
+<div class="line"><a id="l03339" name="l03339"></a><span class="lineno"> 3339</span> </div>
+<div class="line"><a id="l03340" name="l03340"></a><span class="lineno"> 3340</span>  <span class="comment">/* Drop Timer fired and is telling us to consider Dropped some packets.  If drop_all_packets, then</span></div>
+<div class="line"><a id="l03341" name="l03341"></a><span class="lineno"> 3341</span><span class="comment">   * it&#39;s all of them.  Otherwise it&#39;s just the earliest unacknowledged packet</span></div>
+<div class="line"><a id="l03342" name="l03342"></a><span class="lineno"> 3342</span><span class="comment">   * (m_snd_flying_pkts_by_sent_when.begin()). */</span></div>
+<div class="line"><a id="l03343" name="l03343"></a><span class="lineno"> 3343</span> </div>
+<div class="line"><a id="l03344" name="l03344"></a><span class="lineno"> 3344</span>  <span class="comment">// Log details of the In-flight packets before we change things.</span></div>
+<div class="line"><a id="l03345" name="l03345"></a><span class="lineno"> 3345</span>  log_snd_window(sock);</div>
+<div class="line"><a id="l03346" name="l03346"></a><span class="lineno"> 3346</span> </div>
+<div class="line"><a id="l03347" name="l03347"></a><span class="lineno"> 3347</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> = sock-&gt;rexmit_on();</div>
+<div class="line"><a id="l03348" name="l03348"></a><span class="lineno"> 3348</span>  <span class="comment">// To check, at the end, whether we&#39;ve changed can_send() false =&gt; true.</span></div>
+<div class="line"><a id="l03349" name="l03349"></a><span class="lineno"> 3349</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> could_send_before_drops = can_send(sock);</div>
+<div class="line"><a id="l03350" name="l03350"></a><span class="lineno"> 3350</span>  <span class="comment">// To check, at the end, whether we&#39;ve changed snd_deqable() false =&gt; true.</span></div>
+<div class="line"><a id="l03351" name="l03351"></a><span class="lineno"> 3351</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> had_rexmit_data_before_drops = !sock-&gt;m_snd_rexmit_q.empty();</div>
+<div class="line"><a id="l03352" name="l03352"></a><span class="lineno"> 3352</span>  <span class="comment">// Will store ID of the one packet to drop; reserved value 0 will mean ALL packets are dropped.</span></div>
+<div class="line"><a id="l03353" name="l03353"></a><span class="lineno"> 3353</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">Peer_socket::order_num_t</a> packet_marked_to_drop_or_drop_all;</div>
+<div class="line"><a id="l03354" name="l03354"></a><span class="lineno"> 3354</span> </div>
+<div class="line"><a id="l03355" name="l03355"></a><span class="lineno"> 3355</span>  <span class="comment">// Used below for congestion control.</span></div>
+<div class="line"><a id="l03356" name="l03356"></a><span class="lineno"> 3356</span>  <span class="keywordtype">size_t</span> cong_ctl_dropped_bytes = 0;</div>
+<div class="line"><a id="l03357" name="l03357"></a><span class="lineno"> 3357</span>  <span class="keywordtype">size_t</span> cong_ctl_dropped_pkts = 0;</div>
+<div class="line"><a id="l03358" name="l03358"></a><span class="lineno"> 3358</span> </div>
+<div class="line"><a id="l03359" name="l03359"></a><span class="lineno"> 3359</span>  <span class="keywordflow">if</span> (drop_all_packets)</div>
+<div class="line"><a id="l03360" name="l03360"></a><span class="lineno"> 3360</span>  {</div>
+<div class="line"><a id="l03361" name="l03361"></a><span class="lineno"> 3361</span>    cong_ctl_dropped_bytes = sock-&gt;m_snd_flying_bytes;</div>
+<div class="line"><a id="l03362" name="l03362"></a><span class="lineno"> 3362</span>    cong_ctl_dropped_pkts = snd_flying_pkts_by_when.size();</div>
+<div class="line"><a id="l03363" name="l03363"></a><span class="lineno"> 3363</span> </div>
+<div class="line"><a id="l03364" name="l03364"></a><span class="lineno"> 3364</span>    <span class="comment">// Queue them for retransmission, to be sent as soon as CWND provides enough space (could even be immediately).</span></div>
+<div class="line"><a id="l03365" name="l03365"></a><span class="lineno"> 3365</span>    <span class="keywordflow">if</span> (<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>)</div>
+<div class="line"><a id="l03366" name="l03366"></a><span class="lineno"> 3366</span>    {</div>
+<div class="line"><a id="l03367" name="l03367"></a><span class="lineno"> 3367</span>      <span class="comment">// Order is from earliest-sent to latest-sent (retransmission in the same order as transmission).</span></div>
+<div class="line"><a id="l03368" name="l03368"></a><span class="lineno"> 3368</span>      <span class="keywordflow">for</span> (<a class="code hl_typedef" href="classflow_1_1util_1_1Linked__hash__map.html#a18f09acd8df06d9479840862b228463d">Peer_socket::Sent_pkt_by_sent_when_map::Reverse_iterator</a> pkt_it = snd_flying_pkts_by_when.oldest();</div>
+<div class="line"><a id="l03369" name="l03369"></a><span class="lineno"> 3369</span>           pkt_it != snd_flying_pkts_by_when.past_newest();</div>
+<div class="line"><a id="l03370" name="l03370"></a><span class="lineno"> 3370</span>           ++pkt_it)</div>
+<div class="line"><a id="l03371" name="l03371"></a><span class="lineno"> 3371</span>      {</div>
+<div class="line"><a id="l03372" name="l03372"></a><span class="lineno"> 3372</span>        <span class="comment">// The forward iterator F pointing to same list element as reverse iterator R is prior(R.base()). Google it.</span></div>
+<div class="line"><a id="l03373" name="l03373"></a><span class="lineno"> 3373</span>        <span class="keywordflow">if</span> (!ok_to_rexmit_or_close(sock, prior(pkt_it.base()), <span class="keyword">false</span>)) <span class="comment">// Ensure not too many retransmissions already.</span></div>
+<div class="line"><a id="l03374" name="l03374"></a><span class="lineno"> 3374</span>        <span class="comment">/* ^-- defer_delta_check == false: because we were invoked from a timer event.  Therefore, we will NOT perform</span></div>
+<div class="line"><a id="l03375" name="l03375"></a><span class="lineno"> 3375</span><span class="comment">         * event_set_all_check_delta(false) before the boost.asio handler exits.  Therefore boost.asio</span></div>
+<div class="line"><a id="l03376" name="l03376"></a><span class="lineno"> 3376</span><span class="comment">         * may sleep (block) before event_set_all_check_delta(false).  Therefore that would delay</span></div>
+<div class="line"><a id="l03377" name="l03377"></a><span class="lineno"> 3377</span><span class="comment">         * delivery of the event to the user.  Therefore force the delta check immediately.  See</span></div>
+<div class="line"><a id="l03378" name="l03378"></a><span class="lineno"> 3378</span><span class="comment">         * Node::m_sock_events doc header for details. */</span></div>
+<div class="line"><a id="l03379" name="l03379"></a><span class="lineno"> 3379</span>        {</div>
+<div class="line"><a id="l03380" name="l03380"></a><span class="lineno"> 3380</span>          <span class="keywordflow">return</span>; <span class="comment">// Already closed/logged/etc.</span></div>
+<div class="line"><a id="l03381" name="l03381"></a><span class="lineno"> 3381</span>        }</div>
+<div class="line"><a id="l03382" name="l03382"></a><span class="lineno"> 3382</span>        <span class="comment">// else</span></div>
 <div class="line"><a id="l03383" name="l03383"></a><span class="lineno"> 3383</span> </div>
-<div class="line"><a id="l03384" name="l03384"></a><span class="lineno"> 3384</span>    <span class="comment">// Update our image of the pipe.  For efficiency we use clear() instead of doing it one-by-one above.</span></div>
-<div class="line"><a id="l03385" name="l03385"></a><span class="lineno"> 3385</span> </div>
-<div class="line"><a id="l03386" name="l03386"></a><span class="lineno"> 3386</span>    <span class="comment">// Update byte count.</span></div>
-<div class="line"><a id="l03387" name="l03387"></a><span class="lineno"> 3387</span>    snd_flying_pkts_updated(sock, snd_flying_pkts_by_when.newest(), snd_flying_pkts_by_when.past_oldest(), <span class="keyword">false</span>);</div>
-<div class="line"><a id="l03388" name="l03388"></a><span class="lineno"> 3388</span>    snd_flying_pkts_by_when.clear();</div>
-<div class="line"><a id="l03389" name="l03389"></a><span class="lineno"> 3389</span>    snd_flying_pkts_by_seq.clear();</div>
-<div class="line"><a id="l03390" name="l03390"></a><span class="lineno"> 3390</span> </div>
-<div class="line"><a id="l03391" name="l03391"></a><span class="lineno"> 3391</span>    packet_marked_to_drop_or_drop_all = 0; <span class="comment">// Means drop all.</span></div>
-<div class="line"><a id="l03392" name="l03392"></a><span class="lineno"> 3392</span>  }</div>
-<div class="line"><a id="l03393" name="l03393"></a><span class="lineno"> 3393</span>  <span class="keywordflow">else</span></div>
-<div class="line"><a id="l03394" name="l03394"></a><span class="lineno"> 3394</span>  {</div>
-<div class="line"><a id="l03395" name="l03395"></a><span class="lineno"> 3395</span>    <span class="comment">// Get the packet that was sent before all the others.</span></div>
-<div class="line"><a id="l03396" name="l03396"></a><span class="lineno"> 3396</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a>&amp; oldest_pkt_it = prior(snd_flying_pkts_by_when.past_oldest());</div>
-<div class="line"><a id="l03397" name="l03397"></a><span class="lineno"> 3397</span>    <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Sent_packet::Ptr</a> oldest_pkt = oldest_pkt_it-&gt;second;</div>
-<div class="line"><a id="l03398" name="l03398"></a><span class="lineno"> 3398</span> </div>
-<div class="line"><a id="l03399" name="l03399"></a><span class="lineno"> 3399</span>    cong_ctl_dropped_bytes = oldest_pkt-&gt;m_size;</div>
-<div class="line"><a id="l03400" name="l03400"></a><span class="lineno"> 3400</span>    cong_ctl_dropped_pkts = 1;</div>
-<div class="line"><a id="l03401" name="l03401"></a><span class="lineno"> 3401</span> </div>
-<div class="line"><a id="l03402" name="l03402"></a><span class="lineno"> 3402</span>    <span class="comment">// Queue it for retransmission, to be sent as soon as CWND provides enough space (could even be immediately).</span></div>
-<div class="line"><a id="l03403" name="l03403"></a><span class="lineno"> 3403</span>    <span class="keywordflow">if</span> (<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>)</div>
-<div class="line"><a id="l03404" name="l03404"></a><span class="lineno"> 3404</span>    {</div>
-<div class="line"><a id="l03405" name="l03405"></a><span class="lineno"> 3405</span>      <span class="keywordflow">if</span> (!ok_to_rexmit_or_close(sock, oldest_pkt_it, <span class="keyword">false</span>)) <span class="comment">// Ensure not too many retransmissions already.</span></div>
-<div class="line"><a id="l03406" name="l03406"></a><span class="lineno"> 3406</span>      <span class="comment">// ^-- false &lt;= Same as comment above.</span></div>
-<div class="line"><a id="l03407" name="l03407"></a><span class="lineno"> 3407</span>      {</div>
-<div class="line"><a id="l03408" name="l03408"></a><span class="lineno"> 3408</span>        <span class="keywordflow">return</span>; <span class="comment">// Already closed/logged/etc.</span></div>
-<div class="line"><a id="l03409" name="l03409"></a><span class="lineno"> 3409</span>      }</div>
-<div class="line"><a id="l03410" name="l03410"></a><span class="lineno"> 3410</span>      <span class="comment">// else</span></div>
-<div class="line"><a id="l03411" name="l03411"></a><span class="lineno"> 3411</span> </div>
-<div class="line"><a id="l03412" name="l03412"></a><span class="lineno"> 3412</span>      sock-&gt;m_snd_rexmit_q.push_back(oldest_pkt); <span class="comment">// Only a ref-counted pointer copy (constant time).</span></div>
-<div class="line"><a id="l03413" name="l03413"></a><span class="lineno"> 3413</span>      ++sock-&gt;m_snd_rexmit_q_size;</div>
-<div class="line"><a id="l03414" name="l03414"></a><span class="lineno"> 3414</span>    }</div>
-<div class="line"><a id="l03415" name="l03415"></a><span class="lineno"> 3415</span>    <span class="comment">// else { Just drop it. }</span></div>
-<div class="line"><a id="l03416" name="l03416"></a><span class="lineno"> 3416</span> </div>
-<div class="line"><a id="l03417" name="l03417"></a><span class="lineno"> 3417</span>    <span class="comment">// Remember it short-term for the Drop_timer consolidated book-keeping below...</span></div>
-<div class="line"><a id="l03418" name="l03418"></a><span class="lineno"> 3418</span>    packet_marked_to_drop_or_drop_all = oldest_pkt-&gt;m_sent_when.back().m_order_num;</div>
-<div class="line"><a id="l03419" name="l03419"></a><span class="lineno"> 3419</span> </div>
-<div class="line"><a id="l03420" name="l03420"></a><span class="lineno"> 3420</span>    <span class="comment">// ...and in fact mark that packet Dropped (update our image of the pipe).</span></div>
-<div class="line"><a id="l03421" name="l03421"></a><span class="lineno"> 3421</span>    snd_flying_pkts_erase_one(sock, oldest_pkt_it);</div>
-<div class="line"><a id="l03422" name="l03422"></a><span class="lineno"> 3422</span>  }</div>
-<div class="line"><a id="l03423" name="l03423"></a><span class="lineno"> 3423</span> </div>
-<div class="line"><a id="l03424" name="l03424"></a><span class="lineno"> 3424</span>  <span class="comment">/* Deal with congestion control.  For introduction to the general topic see the large comment</span></div>
-<div class="line"><a id="l03425" name="l03425"></a><span class="lineno"> 3425</span><span class="comment">   * near the top of handle_accumulated_acks().</span></div>
-<div class="line"><a id="l03426" name="l03426"></a><span class="lineno"> 3426</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03427" name="l03427"></a><span class="lineno"> 3427</span><span class="comment">   * Since a Drop Timeout implies a large loss event, the congestion control module must be</span></div>
-<div class="line"><a id="l03428" name="l03428"></a><span class="lineno"> 3428</span><span class="comment">   * informed.  It may adjust the congestion window (used in can_send() and controlling how many</span></div>
-<div class="line"><a id="l03429" name="l03429"></a><span class="lineno"> 3429</span><span class="comment">   * packets we are allowed to have In-flight at a time), probably downward.</span></div>
-<div class="line"><a id="l03430" name="l03430"></a><span class="lineno"> 3430</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03431" name="l03431"></a><span class="lineno"> 3431</span><span class="comment">   * Also, this is a new loss event.  Why?  (For detailed explanation of what a loss event is, and</span></div>
-<div class="line"><a id="l03432" name="l03432"></a><span class="lineno"> 3432</span><span class="comment">   * how we keep track of them, see that large comment in handle_accumulated_acks().  It</span></div>
-<div class="line"><a id="l03433" name="l03433"></a><span class="lineno"> 3433</span><span class="comment">   * may be required to understand the rest of this paragraph.)  Certainly this Drop is part of some</span></div>
-<div class="line"><a id="l03434" name="l03434"></a><span class="lineno"> 3434</span><span class="comment">   * loss event by definition, but is it a new loss event, or merely the previous one (if such</span></div>
-<div class="line"><a id="l03435" name="l03435"></a><span class="lineno"> 3435</span><span class="comment">   * exists)?  Well, a Drop Timeout is, in practice, at least 1 second (which is likely 4 times a</span></div>
-<div class="line"><a id="l03436" name="l03436"></a><span class="lineno"> 3436</span><span class="comment">   * pretty large RTT of 250 msec) and can also be estimated to be 3 * SRTT.  In other words it is</span></div>
-<div class="line"><a id="l03437" name="l03437"></a><span class="lineno"> 3437</span><span class="comment">   * probably much larger than SRTT, and certainly is at least a little larger than SRTT.  Therefore</span></div>
-<div class="line"><a id="l03438" name="l03438"></a><span class="lineno"> 3438</span><span class="comment">   * most likely any packet(s) Dropped by this DTO were sent after the last loss event (if any) was</span></div>
-<div class="line"><a id="l03439" name="l03439"></a><span class="lineno"> 3439</span><span class="comment">   * detected.  Hence this DTO event is a new loss event.  We could explicitly check for this, but</span></div>
-<div class="line"><a id="l03440" name="l03440"></a><span class="lineno"> 3440</span><span class="comment">   * it seems unnecessarily complex and intuitively unnecessary.</span></div>
-<div class="line"><a id="l03441" name="l03441"></a><span class="lineno"> 3441</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03442" name="l03442"></a><span class="lineno"> 3442</span><span class="comment">   * Per handle_accumulated_acks(), when a new loss event is seen, m_snd_last_loss_event_when</span></div>
-<div class="line"><a id="l03443" name="l03443"></a><span class="lineno"> 3443</span><span class="comment">   * is set to NOW. */</span></div>
-<div class="line"><a id="l03444" name="l03444"></a><span class="lineno"> 3444</span> </div>
-<div class="line"><a id="l03445" name="l03445"></a><span class="lineno"> 3445</span>  <span class="comment">// @todo Arguable if it should be INFO or TRACE.  We&#39;ll see.</span></div>
-<div class="line"><a id="l03446" name="l03446"></a><span class="lineno"> 3446</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;cong_ctl [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] update: Drop Timeout event: &quot;</span></div>
-<div class="line"><a id="l03447" name="l03447"></a><span class="lineno"> 3447</span>                <span class="stringliteral">&quot;Dropped [&quot;</span> &lt;&lt; cong_ctl_dropped_bytes &lt;&lt; <span class="stringliteral">&quot;] bytes = [&quot;</span> &lt;&lt; cong_ctl_dropped_pkts &lt;&lt; <span class="stringliteral">&quot;] packets.&quot;</span>);</div>
-<div class="line"><a id="l03448" name="l03448"></a><span class="lineno"> 3448</span> </div>
-<div class="line"><a id="l03449" name="l03449"></a><span class="lineno"> 3449</span>  <span class="comment">// MUST call this after, not before, updating m_snd_flying_{packets|bytes} per method doc.</span></div>
-<div class="line"><a id="l03450" name="l03450"></a><span class="lineno"> 3450</span>  sock-&gt;m_snd_cong_ctl-&gt;on_drop_timeout(cong_ctl_dropped_bytes, cong_ctl_dropped_pkts);</div>
-<div class="line"><a id="l03451" name="l03451"></a><span class="lineno"> 3451</span>  sock-&gt;m_snd_last_loss_event_when = Fine_clock::now();</div>
-<div class="line"><a id="l03452" name="l03452"></a><span class="lineno"> 3452</span> </div>
-<div class="line"><a id="l03453" name="l03453"></a><span class="lineno"> 3453</span>  <span class="comment">// Register that there was a timeout, and that bytes were converted from In-flight to Dropped.</span></div>
-<div class="line"><a id="l03454" name="l03454"></a><span class="lineno"> 3454</span>  sock-&gt;m_snd_stats.drop_timeout();</div>
-<div class="line"><a id="l03455" name="l03455"></a><span class="lineno"> 3455</span>  sock-&gt;m_snd_stats.dropped_data(cong_ctl_dropped_bytes, cong_ctl_dropped_pkts);</div>
-<div class="line"><a id="l03456" name="l03456"></a><span class="lineno"> 3456</span> </div>
-<div class="line"><a id="l03457" name="l03457"></a><span class="lineno"> 3457</span>  <span class="comment">// Now log the &quot;after.&quot;</span></div>
-<div class="line"><a id="l03458" name="l03458"></a><span class="lineno"> 3458</span>  log_snd_window(sock);</div>
-<div class="line"><a id="l03459" name="l03459"></a><span class="lineno"> 3459</span> </div>
-<div class="line"><a id="l03460" name="l03460"></a><span class="lineno"> 3460</span>  <span class="comment">// Since we&#39;ve changed snd_flying_pkts*, Drop_timer events have occurred. Cleanly handle them all in one go.</span></div>
-<div class="line"><a id="l03461" name="l03461"></a><span class="lineno"> 3461</span> </div>
-<div class="line"><a id="l03462" name="l03462"></a><span class="lineno"> 3462</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Drop_timer::Ptr</a> drop_timer = sock-&gt;m_snd_drop_timer;</div>
-<div class="line"><a id="l03463" name="l03463"></a><span class="lineno"> 3463</span>  drop_timer-&gt;start_contemporaneous_events();</div>
-<div class="line"><a id="l03464" name="l03464"></a><span class="lineno"> 3464</span> </div>
-<div class="line"><a id="l03465" name="l03465"></a><span class="lineno"> 3465</span>  <span class="comment">/* Handle possible effect of above activities on the Drop Timer.  (It may get disabled or restarted anew.)</span></div>
-<div class="line"><a id="l03466" name="l03466"></a><span class="lineno"> 3466</span><span class="comment">   * Why not just do this right when we erase the associated packets from snd_flying_pkts*? We don&#39;t want to</span></div>
-<div class="line"><a id="l03467" name="l03467"></a><span class="lineno"> 3467</span><span class="comment">   * trigger disruptive behavior like possibly retransmitting everything in the middle of all that accounting</span></div>
-<div class="line"><a id="l03468" name="l03468"></a><span class="lineno"> 3468</span><span class="comment">   * which is not yet complete.  Now it&#39;s complete, so it&#39;s the right time to handle this.</span></div>
-<div class="line"><a id="l03469" name="l03469"></a><span class="lineno"> 3469</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03470" name="l03470"></a><span class="lineno"> 3470</span><span class="comment">   * Recall that snd_flying_pkts* have been updated and no longer contain the associated packet(s)&#39;s info. */</span></div>
-<div class="line"><a id="l03471" name="l03471"></a><span class="lineno"> 3471</span>  <span class="keywordflow">if</span> (packet_marked_to_drop_or_drop_all == 0)</div>
-<div class="line"><a id="l03472" name="l03472"></a><span class="lineno"> 3472</span>  {</div>
-<div class="line"><a id="l03473" name="l03473"></a><span class="lineno"> 3473</span>    <span class="comment">// Note that this is equivalent to calling ...packet_no_longer_in_flight(P) for all P -- just faster.</span></div>
-<div class="line"><a id="l03474" name="l03474"></a><span class="lineno"> 3474</span>    drop_timer-&gt;on_no_packets_in_flight_any_longer();</div>
-<div class="line"><a id="l03475" name="l03475"></a><span class="lineno"> 3475</span>  }</div>
-<div class="line"><a id="l03476" name="l03476"></a><span class="lineno"> 3476</span>  <span class="keywordflow">else</span> <span class="comment">// if (packet_marked_to_drop_or_drop_all refers to, in fact, a specific packet)</span></div>
-<div class="line"><a id="l03477" name="l03477"></a><span class="lineno"> 3477</span>  {</div>
-<div class="line"><a id="l03478" name="l03478"></a><span class="lineno"> 3478</span>    drop_timer-&gt;on_packet_no_longer_in_flight(packet_marked_to_drop_or_drop_all);</div>
-<div class="line"><a id="l03479" name="l03479"></a><span class="lineno"> 3479</span>    <span class="comment">/* Could also call on_no_packets_in_flight_any_longer() if now none is In-flight, but performance-wise that&#39;d</span></div>
-<div class="line"><a id="l03480" name="l03480"></a><span class="lineno"> 3480</span><span class="comment">     * be the same; ...packet_no_longer_in_flight() will check the same condition anyway. So don&#39;t bother. */</span></div>
+<div class="line"><a id="l03384" name="l03384"></a><span class="lineno"> 3384</span>        sock-&gt;m_snd_rexmit_q.push_back(pkt_it-&gt;second); <span class="comment">// Only a ref-counted pointer copy (constant time).</span></div>
+<div class="line"><a id="l03385" name="l03385"></a><span class="lineno"> 3385</span>      }</div>
+<div class="line"><a id="l03386" name="l03386"></a><span class="lineno"> 3386</span>      sock-&gt;m_snd_rexmit_q_size += cong_ctl_dropped_pkts;</div>
+<div class="line"><a id="l03387" name="l03387"></a><span class="lineno"> 3387</span>    }</div>
+<div class="line"><a id="l03388" name="l03388"></a><span class="lineno"> 3388</span>    <span class="comment">// else { Just drop it. }</span></div>
+<div class="line"><a id="l03389" name="l03389"></a><span class="lineno"> 3389</span> </div>
+<div class="line"><a id="l03390" name="l03390"></a><span class="lineno"> 3390</span>    <span class="comment">// Update our image of the pipe.  For efficiency we use clear() instead of doing it one-by-one above.</span></div>
+<div class="line"><a id="l03391" name="l03391"></a><span class="lineno"> 3391</span> </div>
+<div class="line"><a id="l03392" name="l03392"></a><span class="lineno"> 3392</span>    <span class="comment">// Update byte count.</span></div>
+<div class="line"><a id="l03393" name="l03393"></a><span class="lineno"> 3393</span>    snd_flying_pkts_updated(sock, snd_flying_pkts_by_when.newest(), snd_flying_pkts_by_when.past_oldest(), <span class="keyword">false</span>);</div>
+<div class="line"><a id="l03394" name="l03394"></a><span class="lineno"> 3394</span>    snd_flying_pkts_by_when.clear();</div>
+<div class="line"><a id="l03395" name="l03395"></a><span class="lineno"> 3395</span>    snd_flying_pkts_by_seq.clear();</div>
+<div class="line"><a id="l03396" name="l03396"></a><span class="lineno"> 3396</span> </div>
+<div class="line"><a id="l03397" name="l03397"></a><span class="lineno"> 3397</span>    packet_marked_to_drop_or_drop_all = 0; <span class="comment">// Means drop all.</span></div>
+<div class="line"><a id="l03398" name="l03398"></a><span class="lineno"> 3398</span>  }</div>
+<div class="line"><a id="l03399" name="l03399"></a><span class="lineno"> 3399</span>  <span class="keywordflow">else</span></div>
+<div class="line"><a id="l03400" name="l03400"></a><span class="lineno"> 3400</span>  {</div>
+<div class="line"><a id="l03401" name="l03401"></a><span class="lineno"> 3401</span>    <span class="comment">// Get the packet that was sent before all the others.</span></div>
+<div class="line"><a id="l03402" name="l03402"></a><span class="lineno"> 3402</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a>&amp; oldest_pkt_it = prior(snd_flying_pkts_by_when.past_oldest());</div>
+<div class="line"><a id="l03403" name="l03403"></a><span class="lineno"> 3403</span>    <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Sent_packet::Ptr</a> oldest_pkt = oldest_pkt_it-&gt;second;</div>
+<div class="line"><a id="l03404" name="l03404"></a><span class="lineno"> 3404</span> </div>
+<div class="line"><a id="l03405" name="l03405"></a><span class="lineno"> 3405</span>    cong_ctl_dropped_bytes = oldest_pkt-&gt;m_size;</div>
+<div class="line"><a id="l03406" name="l03406"></a><span class="lineno"> 3406</span>    cong_ctl_dropped_pkts = 1;</div>
+<div class="line"><a id="l03407" name="l03407"></a><span class="lineno"> 3407</span> </div>
+<div class="line"><a id="l03408" name="l03408"></a><span class="lineno"> 3408</span>    <span class="comment">// Queue it for retransmission, to be sent as soon as CWND provides enough space (could even be immediately).</span></div>
+<div class="line"><a id="l03409" name="l03409"></a><span class="lineno"> 3409</span>    <span class="keywordflow">if</span> (<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>)</div>
+<div class="line"><a id="l03410" name="l03410"></a><span class="lineno"> 3410</span>    {</div>
+<div class="line"><a id="l03411" name="l03411"></a><span class="lineno"> 3411</span>      <span class="keywordflow">if</span> (!ok_to_rexmit_or_close(sock, oldest_pkt_it, <span class="keyword">false</span>)) <span class="comment">// Ensure not too many retransmissions already.</span></div>
+<div class="line"><a id="l03412" name="l03412"></a><span class="lineno"> 3412</span>      <span class="comment">// ^-- false &lt;= Same as comment above.</span></div>
+<div class="line"><a id="l03413" name="l03413"></a><span class="lineno"> 3413</span>      {</div>
+<div class="line"><a id="l03414" name="l03414"></a><span class="lineno"> 3414</span>        <span class="keywordflow">return</span>; <span class="comment">// Already closed/logged/etc.</span></div>
+<div class="line"><a id="l03415" name="l03415"></a><span class="lineno"> 3415</span>      }</div>
+<div class="line"><a id="l03416" name="l03416"></a><span class="lineno"> 3416</span>      <span class="comment">// else</span></div>
+<div class="line"><a id="l03417" name="l03417"></a><span class="lineno"> 3417</span> </div>
+<div class="line"><a id="l03418" name="l03418"></a><span class="lineno"> 3418</span>      sock-&gt;m_snd_rexmit_q.push_back(oldest_pkt); <span class="comment">// Only a ref-counted pointer copy (constant time).</span></div>
+<div class="line"><a id="l03419" name="l03419"></a><span class="lineno"> 3419</span>      ++sock-&gt;m_snd_rexmit_q_size;</div>
+<div class="line"><a id="l03420" name="l03420"></a><span class="lineno"> 3420</span>    }</div>
+<div class="line"><a id="l03421" name="l03421"></a><span class="lineno"> 3421</span>    <span class="comment">// else { Just drop it. }</span></div>
+<div class="line"><a id="l03422" name="l03422"></a><span class="lineno"> 3422</span> </div>
+<div class="line"><a id="l03423" name="l03423"></a><span class="lineno"> 3423</span>    <span class="comment">// Remember it short-term for the Drop_timer consolidated book-keeping below...</span></div>
+<div class="line"><a id="l03424" name="l03424"></a><span class="lineno"> 3424</span>    packet_marked_to_drop_or_drop_all = oldest_pkt-&gt;m_sent_when.back().m_order_num;</div>
+<div class="line"><a id="l03425" name="l03425"></a><span class="lineno"> 3425</span> </div>
+<div class="line"><a id="l03426" name="l03426"></a><span class="lineno"> 3426</span>    <span class="comment">// ...and in fact mark that packet Dropped (update our image of the pipe).</span></div>
+<div class="line"><a id="l03427" name="l03427"></a><span class="lineno"> 3427</span>    snd_flying_pkts_erase_one(sock, oldest_pkt_it);</div>
+<div class="line"><a id="l03428" name="l03428"></a><span class="lineno"> 3428</span>  }</div>
+<div class="line"><a id="l03429" name="l03429"></a><span class="lineno"> 3429</span> </div>
+<div class="line"><a id="l03430" name="l03430"></a><span class="lineno"> 3430</span>  <span class="comment">/* Deal with congestion control.  For introduction to the general topic see the large comment</span></div>
+<div class="line"><a id="l03431" name="l03431"></a><span class="lineno"> 3431</span><span class="comment">   * near the top of handle_accumulated_acks().</span></div>
+<div class="line"><a id="l03432" name="l03432"></a><span class="lineno"> 3432</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03433" name="l03433"></a><span class="lineno"> 3433</span><span class="comment">   * Since a Drop Timeout implies a large loss event, the congestion control module must be</span></div>
+<div class="line"><a id="l03434" name="l03434"></a><span class="lineno"> 3434</span><span class="comment">   * informed.  It may adjust the congestion window (used in can_send() and controlling how many</span></div>
+<div class="line"><a id="l03435" name="l03435"></a><span class="lineno"> 3435</span><span class="comment">   * packets we are allowed to have In-flight at a time), probably downward.</span></div>
+<div class="line"><a id="l03436" name="l03436"></a><span class="lineno"> 3436</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03437" name="l03437"></a><span class="lineno"> 3437</span><span class="comment">   * Also, this is a new loss event.  Why?  (For detailed explanation of what a loss event is, and</span></div>
+<div class="line"><a id="l03438" name="l03438"></a><span class="lineno"> 3438</span><span class="comment">   * how we keep track of them, see that large comment in handle_accumulated_acks().  It</span></div>
+<div class="line"><a id="l03439" name="l03439"></a><span class="lineno"> 3439</span><span class="comment">   * may be required to understand the rest of this paragraph.)  Certainly this Drop is part of some</span></div>
+<div class="line"><a id="l03440" name="l03440"></a><span class="lineno"> 3440</span><span class="comment">   * loss event by definition, but is it a new loss event, or merely the previous one (if such</span></div>
+<div class="line"><a id="l03441" name="l03441"></a><span class="lineno"> 3441</span><span class="comment">   * exists)?  Well, a Drop Timeout is, in practice, at least 1 second (which is likely 4 times a</span></div>
+<div class="line"><a id="l03442" name="l03442"></a><span class="lineno"> 3442</span><span class="comment">   * pretty large RTT of 250 msec) and can also be estimated to be 3 * SRTT.  In other words it is</span></div>
+<div class="line"><a id="l03443" name="l03443"></a><span class="lineno"> 3443</span><span class="comment">   * probably much larger than SRTT, and certainly is at least a little larger than SRTT.  Therefore</span></div>
+<div class="line"><a id="l03444" name="l03444"></a><span class="lineno"> 3444</span><span class="comment">   * most likely any packet(s) Dropped by this DTO were sent after the last loss event (if any) was</span></div>
+<div class="line"><a id="l03445" name="l03445"></a><span class="lineno"> 3445</span><span class="comment">   * detected.  Hence this DTO event is a new loss event.  We could explicitly check for this, but</span></div>
+<div class="line"><a id="l03446" name="l03446"></a><span class="lineno"> 3446</span><span class="comment">   * it seems unnecessarily complex and intuitively unnecessary.</span></div>
+<div class="line"><a id="l03447" name="l03447"></a><span class="lineno"> 3447</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03448" name="l03448"></a><span class="lineno"> 3448</span><span class="comment">   * Per handle_accumulated_acks(), when a new loss event is seen, m_snd_last_loss_event_when</span></div>
+<div class="line"><a id="l03449" name="l03449"></a><span class="lineno"> 3449</span><span class="comment">   * is set to NOW. */</span></div>
+<div class="line"><a id="l03450" name="l03450"></a><span class="lineno"> 3450</span> </div>
+<div class="line"><a id="l03451" name="l03451"></a><span class="lineno"> 3451</span>  <span class="comment">// @todo Arguable if it should be INFO or TRACE.  We&#39;ll see.</span></div>
+<div class="line"><a id="l03452" name="l03452"></a><span class="lineno"> 3452</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;cong_ctl [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] update: Drop Timeout event: &quot;</span></div>
+<div class="line"><a id="l03453" name="l03453"></a><span class="lineno"> 3453</span>                <span class="stringliteral">&quot;Dropped [&quot;</span> &lt;&lt; cong_ctl_dropped_bytes &lt;&lt; <span class="stringliteral">&quot;] bytes = [&quot;</span> &lt;&lt; cong_ctl_dropped_pkts &lt;&lt; <span class="stringliteral">&quot;] packets.&quot;</span>);</div>
+<div class="line"><a id="l03454" name="l03454"></a><span class="lineno"> 3454</span> </div>
+<div class="line"><a id="l03455" name="l03455"></a><span class="lineno"> 3455</span>  <span class="comment">// MUST call this after, not before, updating m_snd_flying_{packets|bytes} per method doc.</span></div>
+<div class="line"><a id="l03456" name="l03456"></a><span class="lineno"> 3456</span>  sock-&gt;m_snd_cong_ctl-&gt;on_drop_timeout(cong_ctl_dropped_bytes, cong_ctl_dropped_pkts);</div>
+<div class="line"><a id="l03457" name="l03457"></a><span class="lineno"> 3457</span>  sock-&gt;m_snd_last_loss_event_when = Fine_clock::now();</div>
+<div class="line"><a id="l03458" name="l03458"></a><span class="lineno"> 3458</span> </div>
+<div class="line"><a id="l03459" name="l03459"></a><span class="lineno"> 3459</span>  <span class="comment">// Register that there was a timeout, and that bytes were converted from In-flight to Dropped.</span></div>
+<div class="line"><a id="l03460" name="l03460"></a><span class="lineno"> 3460</span>  sock-&gt;m_snd_stats.drop_timeout();</div>
+<div class="line"><a id="l03461" name="l03461"></a><span class="lineno"> 3461</span>  sock-&gt;m_snd_stats.dropped_data(cong_ctl_dropped_bytes, cong_ctl_dropped_pkts);</div>
+<div class="line"><a id="l03462" name="l03462"></a><span class="lineno"> 3462</span> </div>
+<div class="line"><a id="l03463" name="l03463"></a><span class="lineno"> 3463</span>  <span class="comment">// Now log the &quot;after.&quot;</span></div>
+<div class="line"><a id="l03464" name="l03464"></a><span class="lineno"> 3464</span>  log_snd_window(sock);</div>
+<div class="line"><a id="l03465" name="l03465"></a><span class="lineno"> 3465</span> </div>
+<div class="line"><a id="l03466" name="l03466"></a><span class="lineno"> 3466</span>  <span class="comment">// Since we&#39;ve changed snd_flying_pkts*, Drop_timer events have occurred. Cleanly handle them all in one go.</span></div>
+<div class="line"><a id="l03467" name="l03467"></a><span class="lineno"> 3467</span> </div>
+<div class="line"><a id="l03468" name="l03468"></a><span class="lineno"> 3468</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Drop_timer::Ptr</a> drop_timer = sock-&gt;m_snd_drop_timer;</div>
+<div class="line"><a id="l03469" name="l03469"></a><span class="lineno"> 3469</span>  drop_timer-&gt;start_contemporaneous_events();</div>
+<div class="line"><a id="l03470" name="l03470"></a><span class="lineno"> 3470</span> </div>
+<div class="line"><a id="l03471" name="l03471"></a><span class="lineno"> 3471</span>  <span class="comment">/* Handle possible effect of above activities on the Drop Timer.  (It may get disabled or restarted anew.)</span></div>
+<div class="line"><a id="l03472" name="l03472"></a><span class="lineno"> 3472</span><span class="comment">   * Why not just do this right when we erase the associated packets from snd_flying_pkts*? We don&#39;t want to</span></div>
+<div class="line"><a id="l03473" name="l03473"></a><span class="lineno"> 3473</span><span class="comment">   * trigger disruptive behavior like possibly retransmitting everything in the middle of all that accounting</span></div>
+<div class="line"><a id="l03474" name="l03474"></a><span class="lineno"> 3474</span><span class="comment">   * which is not yet complete.  Now it&#39;s complete, so it&#39;s the right time to handle this.</span></div>
+<div class="line"><a id="l03475" name="l03475"></a><span class="lineno"> 3475</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03476" name="l03476"></a><span class="lineno"> 3476</span><span class="comment">   * Recall that snd_flying_pkts* have been updated and no longer contain the associated packet(s)&#39;s info. */</span></div>
+<div class="line"><a id="l03477" name="l03477"></a><span class="lineno"> 3477</span>  <span class="keywordflow">if</span> (packet_marked_to_drop_or_drop_all == 0)</div>
+<div class="line"><a id="l03478" name="l03478"></a><span class="lineno"> 3478</span>  {</div>
+<div class="line"><a id="l03479" name="l03479"></a><span class="lineno"> 3479</span>    <span class="comment">// Note that this is equivalent to calling ...packet_no_longer_in_flight(P) for all P -- just faster.</span></div>
+<div class="line"><a id="l03480" name="l03480"></a><span class="lineno"> 3480</span>    drop_timer-&gt;on_no_packets_in_flight_any_longer();</div>
 <div class="line"><a id="l03481" name="l03481"></a><span class="lineno"> 3481</span>  }</div>
-<div class="line"><a id="l03482" name="l03482"></a><span class="lineno"> 3482</span> </div>
-<div class="line"><a id="l03483" name="l03483"></a><span class="lineno"> 3483</span>  drop_timer-&gt;end_contemporaneous_events();</div>
-<div class="line"><a id="l03484" name="l03484"></a><span class="lineno"> 3484</span> </div>
-<div class="line"><a id="l03485" name="l03485"></a><span class="lineno"> 3485</span>  <span class="comment">/* We&#39;ve definitely reduced the number of packets we consider In-flight.  We may also have added</span></div>
-<div class="line"><a id="l03486" name="l03486"></a><span class="lineno"> 3486</span><span class="comment">   * packets to retransmission queue (if retransmission is on).  Therefore can_send() may now return</span></div>
-<div class="line"><a id="l03487" name="l03487"></a><span class="lineno"> 3487</span><span class="comment">   * true while at the beginning of the method it returned false; snd_deqable() may now return true</span></div>
-<div class="line"><a id="l03488" name="l03488"></a><span class="lineno"> 3488</span><span class="comment">   * similarly.  So have send_worker() check and send more if possible.  See Node::send() for</span></div>
-<div class="line"><a id="l03489" name="l03489"></a><span class="lineno"> 3489</span><span class="comment">   * discussion of overall strategy on this topic. */</span></div>
-<div class="line"><a id="l03490" name="l03490"></a><span class="lineno"> 3490</span>  <span class="keywordflow">if</span> ((!could_send_before_drops) || (<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> &amp;&amp; (!had_rexmit_data_before_drops)))</div>
-<div class="line"><a id="l03491" name="l03491"></a><span class="lineno"> 3491</span>  {</div>
-<div class="line"><a id="l03492" name="l03492"></a><span class="lineno"> 3492</span>    send_worker(sock, <span class="keyword">false</span>);</div>
-<div class="line"><a id="l03493" name="l03493"></a><span class="lineno"> 3493</span>    <span class="comment">// ^-- defer_delta_check == false: for similar reason as in send_worker_check_state() calling send_worker().</span></div>
-<div class="line"><a id="l03494" name="l03494"></a><span class="lineno"> 3494</span>  }</div>
-<div class="line"><a id="l03495" name="l03495"></a><span class="lineno"> 3495</span>} <span class="comment">// Node::drop_timer_action()</span></div>
-<div class="line"><a id="l03496" name="l03496"></a><span class="lineno"> 3496</span> </div>
-<div class="line"><a id="l03497" name="l03497"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ae9b88eadca41228fe6a671f2f14ead0b"> 3497</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ae9b88eadca41228fe6a671f2f14ead0b">Node::new_round_trip_time_sample</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> round_trip_time)</div>
-<div class="line"><a id="l03498" name="l03498"></a><span class="lineno"> 3498</span>{</div>
-<div class="line"><a id="l03499" name="l03499"></a><span class="lineno"> 3499</span>  <span class="keyword">using </span>std::min;</div>
-<div class="line"><a id="l03500" name="l03500"></a><span class="lineno"> 3500</span>  <span class="keyword">using </span>std::max;</div>
-<div class="line"><a id="l03501" name="l03501"></a><span class="lineno"> 3501</span>  <span class="keyword">using </span>boost::ratio;</div>
-<div class="line"><a id="l03502" name="l03502"></a><span class="lineno"> 3502</span>  <span class="keyword">using </span>boost::ratio_subtract;</div>
-<div class="line"><a id="l03503" name="l03503"></a><span class="lineno"> 3503</span>  <span class="keyword">using </span>boost::ratio_string;</div>
-<div class="line"><a id="l03504" name="l03504"></a><span class="lineno"> 3504</span>  <span class="keyword">using </span>boost::chrono::round;</div>
-<div class="line"><a id="l03505" name="l03505"></a><span class="lineno"> 3505</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
-<div class="line"><a id="l03506" name="l03506"></a><span class="lineno"> 3506</span>  <span class="keyword">using </span>boost::chrono::microseconds;</div>
-<div class="line"><a id="l03507" name="l03507"></a><span class="lineno"> 3507</span>  <span class="keyword">using </span>boost::chrono::seconds;</div>
-<div class="line"><a id="l03508" name="l03508"></a><span class="lineno"> 3508</span> </div>
-<div class="line"><a id="l03509" name="l03509"></a><span class="lineno"> 3509</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l03510" name="l03510"></a><span class="lineno"> 3510</span> </div>
-<div class="line"><a id="l03511" name="l03511"></a><span class="lineno"> 3511</span>  <span class="comment">// For brevity and a bit of speed:</span></div>
-<div class="line"><a id="l03512" name="l03512"></a><span class="lineno"> 3512</span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>&amp; srtt = sock-&gt;m_snd_smoothed_round_trip_time;</div>
-<div class="line"><a id="l03513" name="l03513"></a><span class="lineno"> 3513</span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>&amp; rtt_var = sock-&gt;m_round_trip_time_variance;</div>
-<div class="line"><a id="l03514" name="l03514"></a><span class="lineno"> 3514</span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>&amp; dto = sock-&gt;m_snd_drop_timeout;</div>
-<div class="line"><a id="l03515" name="l03515"></a><span class="lineno"> 3515</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>&amp; rtt = round_trip_time;</div>
+<div class="line"><a id="l03482" name="l03482"></a><span class="lineno"> 3482</span>  <span class="keywordflow">else</span> <span class="comment">// if (packet_marked_to_drop_or_drop_all refers to, in fact, a specific packet)</span></div>
+<div class="line"><a id="l03483" name="l03483"></a><span class="lineno"> 3483</span>  {</div>
+<div class="line"><a id="l03484" name="l03484"></a><span class="lineno"> 3484</span>    drop_timer-&gt;on_packet_no_longer_in_flight(packet_marked_to_drop_or_drop_all);</div>
+<div class="line"><a id="l03485" name="l03485"></a><span class="lineno"> 3485</span>    <span class="comment">/* Could also call on_no_packets_in_flight_any_longer() if now none is In-flight, but performance-wise that&#39;d</span></div>
+<div class="line"><a id="l03486" name="l03486"></a><span class="lineno"> 3486</span><span class="comment">     * be the same; ...packet_no_longer_in_flight() will check the same condition anyway. So don&#39;t bother. */</span></div>
+<div class="line"><a id="l03487" name="l03487"></a><span class="lineno"> 3487</span>  }</div>
+<div class="line"><a id="l03488" name="l03488"></a><span class="lineno"> 3488</span> </div>
+<div class="line"><a id="l03489" name="l03489"></a><span class="lineno"> 3489</span>  drop_timer-&gt;end_contemporaneous_events();</div>
+<div class="line"><a id="l03490" name="l03490"></a><span class="lineno"> 3490</span> </div>
+<div class="line"><a id="l03491" name="l03491"></a><span class="lineno"> 3491</span>  <span class="comment">/* We&#39;ve definitely reduced the number of packets we consider In-flight.  We may also have added</span></div>
+<div class="line"><a id="l03492" name="l03492"></a><span class="lineno"> 3492</span><span class="comment">   * packets to retransmission queue (if retransmission is on).  Therefore can_send() may now return</span></div>
+<div class="line"><a id="l03493" name="l03493"></a><span class="lineno"> 3493</span><span class="comment">   * true while at the beginning of the method it returned false; snd_deqable() may now return true</span></div>
+<div class="line"><a id="l03494" name="l03494"></a><span class="lineno"> 3494</span><span class="comment">   * similarly.  So have send_worker() check and send more if possible.  See Node::send() for</span></div>
+<div class="line"><a id="l03495" name="l03495"></a><span class="lineno"> 3495</span><span class="comment">   * discussion of overall strategy on this topic. */</span></div>
+<div class="line"><a id="l03496" name="l03496"></a><span class="lineno"> 3496</span>  <span class="keywordflow">if</span> ((!could_send_before_drops) || (<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> &amp;&amp; (!had_rexmit_data_before_drops)))</div>
+<div class="line"><a id="l03497" name="l03497"></a><span class="lineno"> 3497</span>  {</div>
+<div class="line"><a id="l03498" name="l03498"></a><span class="lineno"> 3498</span>    send_worker(sock, <span class="keyword">false</span>);</div>
+<div class="line"><a id="l03499" name="l03499"></a><span class="lineno"> 3499</span>    <span class="comment">// ^-- defer_delta_check == false: for similar reason as in send_worker_check_state() calling send_worker().</span></div>
+<div class="line"><a id="l03500" name="l03500"></a><span class="lineno"> 3500</span>  }</div>
+<div class="line"><a id="l03501" name="l03501"></a><span class="lineno"> 3501</span>} <span class="comment">// Node::drop_timer_action()</span></div>
+<div class="line"><a id="l03502" name="l03502"></a><span class="lineno"> 3502</span> </div>
+<div class="line"><a id="l03503" name="l03503"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ae9b88eadca41228fe6a671f2f14ead0b"> 3503</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ae9b88eadca41228fe6a671f2f14ead0b">Node::new_round_trip_time_sample</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> round_trip_time)</div>
+<div class="line"><a id="l03504" name="l03504"></a><span class="lineno"> 3504</span>{</div>
+<div class="line"><a id="l03505" name="l03505"></a><span class="lineno"> 3505</span>  <span class="keyword">using </span>std::min;</div>
+<div class="line"><a id="l03506" name="l03506"></a><span class="lineno"> 3506</span>  <span class="keyword">using </span>std::max;</div>
+<div class="line"><a id="l03507" name="l03507"></a><span class="lineno"> 3507</span>  <span class="keyword">using </span>boost::ratio;</div>
+<div class="line"><a id="l03508" name="l03508"></a><span class="lineno"> 3508</span>  <span class="keyword">using </span>boost::ratio_subtract;</div>
+<div class="line"><a id="l03509" name="l03509"></a><span class="lineno"> 3509</span>  <span class="keyword">using </span>boost::ratio_string;</div>
+<div class="line"><a id="l03510" name="l03510"></a><span class="lineno"> 3510</span>  <span class="keyword">using </span>boost::chrono::round;</div>
+<div class="line"><a id="l03511" name="l03511"></a><span class="lineno"> 3511</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
+<div class="line"><a id="l03512" name="l03512"></a><span class="lineno"> 3512</span>  <span class="keyword">using </span>boost::chrono::microseconds;</div>
+<div class="line"><a id="l03513" name="l03513"></a><span class="lineno"> 3513</span>  <span class="keyword">using </span>boost::chrono::seconds;</div>
+<div class="line"><a id="l03514" name="l03514"></a><span class="lineno"> 3514</span> </div>
+<div class="line"><a id="l03515" name="l03515"></a><span class="lineno"> 3515</span>  <span class="comment">// We are in thread W.</span></div>
 <div class="line"><a id="l03516" name="l03516"></a><span class="lineno"> 3516</span> </div>
-<div class="line"><a id="l03517" name="l03517"></a><span class="lineno"> 3517</span>  <span class="comment">/* An ACK has supplied the given round_trip_time for a specific packet.  We are to update the</span></div>
-<div class="line"><a id="l03518" name="l03518"></a><span class="lineno"> 3518</span><span class="comment">   * smoothed RTT for the socket which is an estimate for the smooth &quot;current&quot; RTT for the socket.</span></div>
-<div class="line"><a id="l03519" name="l03519"></a><span class="lineno"> 3519</span><span class="comment">   * Use RFC 6298 algorithm for SRTT calculation.</span></div>
-<div class="line"><a id="l03520" name="l03520"></a><span class="lineno"> 3520</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03521" name="l03521"></a><span class="lineno"> 3521</span><span class="comment">   * RFC 6298 specifies the formula in &quot;seconds.&quot;  Of course it need not be seconds; it can be any</span></div>
-<div class="line"><a id="l03522" name="l03522"></a><span class="lineno"> 3522</span><span class="comment">   * unit.  We leave the unit we use unspecified, except to say that we will use the unit of</span></div>
-<div class="line"><a id="l03523" name="l03523"></a><span class="lineno"> 3523</span><span class="comment">   * Fine_duration, which is the duration type of Fine_clock, which is the highest-resolution clock</span></div>
-<div class="line"><a id="l03524" name="l03524"></a><span class="lineno"> 3524</span><span class="comment">   * available in the OS/hardware.  Since, where possible, we keep using Fine_duration without</span></div>
-<div class="line"><a id="l03525" name="l03525"></a><span class="lineno"> 3525</span><span class="comment">   * truncation to compute round_trip_time, assuming we don&#39;t introduce any unit conversions</span></div>
-<div class="line"><a id="l03526" name="l03526"></a><span class="lineno"> 3526</span><span class="comment">   * (truncations, roundings) in the below code, the SRTT will maintain those units as well.</span></div>
-<div class="line"><a id="l03527" name="l03527"></a><span class="lineno"> 3527</span><span class="comment">   * boost::chrono::duration will specifically cause compile failures if we don&#39;t explicitly specify</span></div>
-<div class="line"><a id="l03528" name="l03528"></a><span class="lineno"> 3528</span><span class="comment">   * every truncation-inducing operation (duration_cast&lt;&gt;, round&lt;&gt;, etc.).</span></div>
-<div class="line"><a id="l03529" name="l03529"></a><span class="lineno"> 3529</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03530" name="l03530"></a><span class="lineno"> 3530</span><span class="comment">   * BTW, this &quot;unspecified&quot; unit is probably nanoseconds.</span></div>
-<div class="line"><a id="l03531" name="l03531"></a><span class="lineno"> 3531</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03532" name="l03532"></a><span class="lineno"> 3532</span><span class="comment">   * Note that the units used do NOT guarantee any particular clock granularity.  E.g., I can give</span></div>
-<div class="line"><a id="l03533" name="l03533"></a><span class="lineno"> 3533</span><span class="comment">   * you the time in milliseconds, but if I always say it in multiples of 1000 milliseconds, then I</span></div>
-<div class="line"><a id="l03534" name="l03534"></a><span class="lineno"> 3534</span><span class="comment">   * may be working with milliseconds, but the resolution is 1 sec. */</span></div>
-<div class="line"><a id="l03535" name="l03535"></a><span class="lineno"> 3535</span> </div>
-<div class="line"><a id="l03536" name="l03536"></a><span class="lineno"> 3536</span>  <span class="keywordflow">if</span> (srtt == Fine_duration::zero())</div>
-<div class="line"><a id="l03537" name="l03537"></a><span class="lineno"> 3537</span>  {</div>
-<div class="line"><a id="l03538" name="l03538"></a><span class="lineno"> 3538</span>    <span class="comment">// First RTT measurement; initialize according to algorithm.</span></div>
-<div class="line"><a id="l03539" name="l03539"></a><span class="lineno"> 3539</span>    srtt = rtt;</div>
-<div class="line"><a id="l03540" name="l03540"></a><span class="lineno"> 3540</span>    rtt_var = rtt / 2;</div>
+<div class="line"><a id="l03517" name="l03517"></a><span class="lineno"> 3517</span>  <span class="comment">// For brevity and a bit of speed:</span></div>
+<div class="line"><a id="l03518" name="l03518"></a><span class="lineno"> 3518</span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>&amp; srtt = sock-&gt;m_snd_smoothed_round_trip_time;</div>
+<div class="line"><a id="l03519" name="l03519"></a><span class="lineno"> 3519</span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>&amp; rtt_var = sock-&gt;m_round_trip_time_variance;</div>
+<div class="line"><a id="l03520" name="l03520"></a><span class="lineno"> 3520</span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>&amp; dto = sock-&gt;m_snd_drop_timeout;</div>
+<div class="line"><a id="l03521" name="l03521"></a><span class="lineno"> 3521</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>&amp; rtt = round_trip_time;</div>
+<div class="line"><a id="l03522" name="l03522"></a><span class="lineno"> 3522</span> </div>
+<div class="line"><a id="l03523" name="l03523"></a><span class="lineno"> 3523</span>  <span class="comment">/* An ACK has supplied the given round_trip_time for a specific packet.  We are to update the</span></div>
+<div class="line"><a id="l03524" name="l03524"></a><span class="lineno"> 3524</span><span class="comment">   * smoothed RTT for the socket which is an estimate for the smooth &quot;current&quot; RTT for the socket.</span></div>
+<div class="line"><a id="l03525" name="l03525"></a><span class="lineno"> 3525</span><span class="comment">   * Use RFC 6298 algorithm for SRTT calculation.</span></div>
+<div class="line"><a id="l03526" name="l03526"></a><span class="lineno"> 3526</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03527" name="l03527"></a><span class="lineno"> 3527</span><span class="comment">   * RFC 6298 specifies the formula in &quot;seconds.&quot;  Of course it need not be seconds; it can be any</span></div>
+<div class="line"><a id="l03528" name="l03528"></a><span class="lineno"> 3528</span><span class="comment">   * unit.  We leave the unit we use unspecified, except to say that we will use the unit of</span></div>
+<div class="line"><a id="l03529" name="l03529"></a><span class="lineno"> 3529</span><span class="comment">   * Fine_duration, which is the duration type of Fine_clock, which is the highest-resolution clock</span></div>
+<div class="line"><a id="l03530" name="l03530"></a><span class="lineno"> 3530</span><span class="comment">   * available in the OS/hardware.  Since, where possible, we keep using Fine_duration without</span></div>
+<div class="line"><a id="l03531" name="l03531"></a><span class="lineno"> 3531</span><span class="comment">   * truncation to compute round_trip_time, assuming we don&#39;t introduce any unit conversions</span></div>
+<div class="line"><a id="l03532" name="l03532"></a><span class="lineno"> 3532</span><span class="comment">   * (truncations, roundings) in the below code, the SRTT will maintain those units as well.</span></div>
+<div class="line"><a id="l03533" name="l03533"></a><span class="lineno"> 3533</span><span class="comment">   * boost::chrono::duration will specifically cause compile failures if we don&#39;t explicitly specify</span></div>
+<div class="line"><a id="l03534" name="l03534"></a><span class="lineno"> 3534</span><span class="comment">   * every truncation-inducing operation (duration_cast&lt;&gt;, round&lt;&gt;, etc.).</span></div>
+<div class="line"><a id="l03535" name="l03535"></a><span class="lineno"> 3535</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03536" name="l03536"></a><span class="lineno"> 3536</span><span class="comment">   * BTW, this &quot;unspecified&quot; unit is probably nanoseconds.</span></div>
+<div class="line"><a id="l03537" name="l03537"></a><span class="lineno"> 3537</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03538" name="l03538"></a><span class="lineno"> 3538</span><span class="comment">   * Note that the units used do NOT guarantee any particular clock granularity.  E.g., I can give</span></div>
+<div class="line"><a id="l03539" name="l03539"></a><span class="lineno"> 3539</span><span class="comment">   * you the time in milliseconds, but if I always say it in multiples of 1000 milliseconds, then I</span></div>
+<div class="line"><a id="l03540" name="l03540"></a><span class="lineno"> 3540</span><span class="comment">   * may be working with milliseconds, but the resolution is 1 sec. */</span></div>
 <div class="line"><a id="l03541" name="l03541"></a><span class="lineno"> 3541</span> </div>
-<div class="line"><a id="l03542" name="l03542"></a><span class="lineno"> 3542</span>    <span class="comment">// Truncate results to millisecond representation for readability.</span></div>
-<div class="line"><a id="l03543" name="l03543"></a><span class="lineno"> 3543</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;First SRTT calculation for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
-<div class="line"><a id="l03544" name="l03544"></a><span class="lineno"> 3544</span>                   <span class="stringliteral">&quot;srtt = [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(srtt) &lt;&lt; <span class="stringliteral">&quot; = &quot;</span> &lt;&lt; srtt &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03545" name="l03545"></a><span class="lineno"> 3545</span>                   <span class="stringliteral">&quot;rtt_var = [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(rtt_var) &lt;&lt; <span class="stringliteral">&quot; = &quot;</span> &lt;&lt; rtt_var &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03546" name="l03546"></a><span class="lineno"> 3546</span>                   <span class="stringliteral">&quot;rtt = [&quot;</span> &lt;&lt; rtt &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l03547" name="l03547"></a><span class="lineno"> 3547</span>  }</div>
-<div class="line"><a id="l03548" name="l03548"></a><span class="lineno"> 3548</span>  <span class="keywordflow">else</span> <span class="comment">// if (SRTT was defined before this sample.)</span></div>
-<div class="line"><a id="l03549" name="l03549"></a><span class="lineno"> 3549</span>  {</div>
-<div class="line"><a id="l03550" name="l03550"></a><span class="lineno"> 3550</span>    <span class="comment">// Subsequent RTT measurements.</span></div>
-<div class="line"><a id="l03551" name="l03551"></a><span class="lineno"> 3551</span> </div>
-<div class="line"><a id="l03552" name="l03552"></a><span class="lineno"> 3552</span>    <span class="comment">// @todo Per last paragraph of RFC 6298-5, we MAY want to clear srtt/rtt_var afer multiple RTOs or maybe idleness.</span></div>
-<div class="line"><a id="l03553" name="l03553"></a><span class="lineno"> 3553</span>    <span class="comment">// (RTO = Retransmission Timeout, though we call it a Drop Timeout more accurately [we don&#39;t necessarily</span></div>
-<div class="line"><a id="l03554" name="l03554"></a><span class="lineno"> 3554</span>    <span class="comment">// retransmit on loss in NetFlow, unlike TCP].)</span></div>
-<div class="line"><a id="l03555" name="l03555"></a><span class="lineno"> 3555</span> </div>
-<div class="line"><a id="l03556" name="l03556"></a><span class="lineno"> 3556</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> prev_srtt = srtt;</div>
-<div class="line"><a id="l03557" name="l03557"></a><span class="lineno"> 3557</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> prev_rtt_var = rtt_var;</div>
-<div class="line"><a id="l03558" name="l03558"></a><span class="lineno"> 3558</span> </div>
-<div class="line"><a id="l03559" name="l03559"></a><span class="lineno"> 3559</span>    <span class="comment">/* Reason I used ratio&lt;&gt; instead of floating point constants: I don&#39;t want to use floating</span></div>
-<div class="line"><a id="l03560" name="l03560"></a><span class="lineno"> 3560</span><span class="comment">     * points in production code that much.  I don&#39;t necessarily trust it for consistent behavior across platforms...</span></div>
-<div class="line"><a id="l03561" name="l03561"></a><span class="lineno"> 3561</span><span class="comment">     * and in general I just find integers more predictable/easier to reason about in most contexts of net_flow.</span></div>
-<div class="line"><a id="l03562" name="l03562"></a><span class="lineno"> 3562</span><span class="comment">     * Reason I used ratio&lt;&gt; instead of just having separate integer constants for numerators and</span></div>
-<div class="line"><a id="l03563" name="l03563"></a><span class="lineno"> 3563</span><span class="comment">     * denominators: I&#39;d rather have ratio&lt;&gt; do the arithmetic for me (at compile time to boot!). */</span></div>
-<div class="line"><a id="l03564" name="l03564"></a><span class="lineno"> 3564</span>    <span class="keyword">using </span>Alpha = ratio&lt;1, 8&gt;; <span class="comment">// 1/8, per RFC.</span></div>
-<div class="line"><a id="l03565" name="l03565"></a><span class="lineno"> 3565</span>    <span class="keyword">using </span>One_minus_alpha = ratio_subtract&lt;ratio&lt;1&gt;, Alpha&gt;;</div>
-<div class="line"><a id="l03566" name="l03566"></a><span class="lineno"> 3566</span>    <span class="keyword">using </span>Beta = ratio&lt;1, 4&gt;; <span class="comment">// 1/4, per RFC.</span></div>
-<div class="line"><a id="l03567" name="l03567"></a><span class="lineno"> 3567</span>    <span class="keyword">using </span>One_minus_beta = ratio_subtract&lt;ratio&lt;1&gt;, Beta&gt;;</div>
-<div class="line"><a id="l03568" name="l03568"></a><span class="lineno"> 3568</span>    <span class="comment">// Now I can use X::num and X::den, such that X is the ratio X::num/X::den.</span></div>
-<div class="line"><a id="l03569" name="l03569"></a><span class="lineno"> 3569</span> </div>
-<div class="line"><a id="l03570" name="l03570"></a><span class="lineno"> 3570</span>    <span class="comment">// Compute |srtt - rtt|.</span></div>
-<div class="line"><a id="l03571" name="l03571"></a><span class="lineno"> 3571</span>    <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> abs_srtt_minus_rtt = srtt - rtt;</div>
-<div class="line"><a id="l03572" name="l03572"></a><span class="lineno"> 3572</span>    <span class="keywordflow">if</span> (abs_srtt_minus_rtt.count() &lt; 0)</div>
-<div class="line"><a id="l03573" name="l03573"></a><span class="lineno"> 3573</span>    {</div>
-<div class="line"><a id="l03574" name="l03574"></a><span class="lineno"> 3574</span>      abs_srtt_minus_rtt = -abs_srtt_minus_rtt;</div>
-<div class="line"><a id="l03575" name="l03575"></a><span class="lineno"> 3575</span>    }</div>
-<div class="line"><a id="l03576" name="l03576"></a><span class="lineno"> 3576</span> </div>
-<div class="line"><a id="l03577" name="l03577"></a><span class="lineno"> 3577</span>    <span class="comment">// Update the results per RFC.</span></div>
-<div class="line"><a id="l03578" name="l03578"></a><span class="lineno"> 3578</span>    rtt_var</div>
-<div class="line"><a id="l03579" name="l03579"></a><span class="lineno"> 3579</span>      = rtt_var * One_minus_beta::num / One_minus_beta::den</div>
-<div class="line"><a id="l03580" name="l03580"></a><span class="lineno"> 3580</span>        + abs_srtt_minus_rtt * Beta::num / Beta::den;</div>
-<div class="line"><a id="l03581" name="l03581"></a><span class="lineno"> 3581</span>    srtt</div>
-<div class="line"><a id="l03582" name="l03582"></a><span class="lineno"> 3582</span>      = srtt * One_minus_alpha::num / One_minus_alpha::den</div>
-<div class="line"><a id="l03583" name="l03583"></a><span class="lineno"> 3583</span>        + rtt * Alpha::num / Alpha::den;</div>
-<div class="line"><a id="l03584" name="l03584"></a><span class="lineno"> 3584</span> </div>
-<div class="line"><a id="l03585" name="l03585"></a><span class="lineno"> 3585</span>    <span class="comment">// Truncate results to millisecond representation for readability.</span></div>
-<div class="line"><a id="l03586" name="l03586"></a><span class="lineno"> 3586</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Next SRTT calculation for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
-<div class="line"><a id="l03587" name="l03587"></a><span class="lineno"> 3587</span>                   <span class="stringliteral">&quot;srtt = [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(srtt) &lt;&lt; <span class="stringliteral">&quot; = &quot;</span> &lt;&lt; srtt &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03588" name="l03588"></a><span class="lineno"> 3588</span>                   <span class="stringliteral">&quot;rtt_var = [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(rtt_var) &lt;&lt; <span class="stringliteral">&quot; = &quot;</span> &lt;&lt; rtt_var &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03589" name="l03589"></a><span class="lineno"> 3589</span>                   <span class="stringliteral">&quot;rtt = [&quot;</span> &lt;&lt; rtt &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03590" name="l03590"></a><span class="lineno"> 3590</span>                   <span class="stringliteral">&quot;prev_srtt = [&quot;</span> &lt;&lt; prev_srtt &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03591" name="l03591"></a><span class="lineno"> 3591</span>                   <span class="stringliteral">&quot;prev_rtt_var = [&quot;</span> &lt;&lt; prev_rtt_var &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03592" name="l03592"></a><span class="lineno"> 3592</span>                   <span class="stringliteral">&quot;alpha = &quot;</span> &lt;&lt; (ratio_string&lt;Alpha, char&gt;::prefix()) &lt;&lt; <span class="stringliteral">&quot;; &quot;</span></div>
-<div class="line"><a id="l03593" name="l03593"></a><span class="lineno"> 3593</span>                   <span class="stringliteral">&quot;(1 - alpha) = &quot;</span> &lt;&lt; (ratio_string&lt;One_minus_alpha, char&gt;::prefix()) &lt;&lt; <span class="stringliteral">&quot;; &quot;</span></div>
-<div class="line"><a id="l03594" name="l03594"></a><span class="lineno"> 3594</span>                   <span class="stringliteral">&quot;beta = &quot;</span> &lt;&lt; (ratio_string&lt;Beta, char&gt;::prefix()) &lt;&lt; <span class="stringliteral">&quot;; &quot;</span></div>
-<div class="line"><a id="l03595" name="l03595"></a><span class="lineno"> 3595</span>                   <span class="stringliteral">&quot;(1 - beta) = &quot;</span> &lt;&lt; (ratio_string&lt;One_minus_beta, char&gt;::prefix()) &lt;&lt; <span class="stringliteral">&quot;; &quot;</span></div>
-<div class="line"><a id="l03596" name="l03596"></a><span class="lineno"> 3596</span>                   <span class="stringliteral">&quot;|srtt - rtt| = [&quot;</span> &lt;&lt; abs_srtt_minus_rtt &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l03597" name="l03597"></a><span class="lineno"> 3597</span>  } <span class="comment">// else if (SRTT was defined before this sample)</span></div>
-<div class="line"><a id="l03598" name="l03598"></a><span class="lineno"> 3598</span> </div>
-<div class="line"><a id="l03599" name="l03599"></a><span class="lineno"> 3599</span>  <span class="comment">/* Now compute Drop Timeout (DTO), similar to TCP&#39;s RTO (Retransmission Timeout): the minimum</span></div>
-<div class="line"><a id="l03600" name="l03600"></a><span class="lineno"> 3600</span><span class="comment">   * amount of time we give an In-flight packet to get Acknowledged before considering it Dropped.</span></div>
-<div class="line"><a id="l03601" name="l03601"></a><span class="lineno"> 3601</span><span class="comment">   * Again we use RFC 6298 for DTO computation.</span></div>
-<div class="line"><a id="l03602" name="l03602"></a><span class="lineno"> 3602</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03603" name="l03603"></a><span class="lineno"> 3603</span><span class="comment">   * The formula is DTO = srtt + max(G, K * rtt_var), where K = 4 and G is the &quot;clock</span></div>
-<div class="line"><a id="l03604" name="l03604"></a><span class="lineno"> 3604</span><span class="comment">   * granularity.&quot;  Additionally, we are to put a floor of 1 second on DTO.  Finally, we are allowed</span></div>
-<div class="line"><a id="l03605" name="l03605"></a><span class="lineno"> 3605</span><span class="comment">   * to put a ceiling on DTO, as long as that ceiling is at least 60 seconds.</span></div>
-<div class="line"><a id="l03606" name="l03606"></a><span class="lineno"> 3606</span><span class="comment">   *</span></div>
-<div class="line"><a id="l03607" name="l03607"></a><span class="lineno"> 3607</span><span class="comment">   * G plays an important part in the RTO caclulation algorithm, so we must know it.  So what is it?</span></div>
-<div class="line"><a id="l03608" name="l03608"></a><span class="lineno"> 3608</span><span class="comment">   * We don&#39;t know.  We do however have a reasonably conservative upper bound; boost.timer</span></div>
-<div class="line"><a id="l03609" name="l03609"></a><span class="lineno"> 3609</span><span class="comment">   * documentation lists some popular OS+CPU combinations and notes that for none of them does</span></div>
-<div class="line"><a id="l03610" name="l03610"></a><span class="lineno"> 3610</span><span class="comment">   * high_resolution_timer exceed 5 microseconds.  Therefore, let us pick the exceedingly</span></div>
-<div class="line"><a id="l03611" name="l03611"></a><span class="lineno"> 3611</span><span class="comment">   * conservative G = 500 microseconds = 1/2 milliseconds. */</span></div>
-<div class="line"><a id="l03612" name="l03612"></a><span class="lineno"> 3612</span> </div>
-<div class="line"><a id="l03613" name="l03613"></a><span class="lineno"> 3613</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> clock_resolution_at_least = microseconds(500);</div>
-<div class="line"><a id="l03614" name="l03614"></a><span class="lineno"> 3614</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> floor = seconds(1);</div>
-<div class="line"><a id="l03615" name="l03615"></a><span class="lineno"> 3615</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> ceiling = sock-&gt;opt(sock-&gt;m_opts.m_dyn_drop_timeout_ceiling);</div>
-<div class="line"><a id="l03616" name="l03616"></a><span class="lineno"> 3616</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> k = 4;</div>
-<div class="line"><a id="l03617" name="l03617"></a><span class="lineno"> 3617</span> </div>
-<div class="line"><a id="l03618" name="l03618"></a><span class="lineno"> 3618</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> prev_dto = dto;</div>
-<div class="line"><a id="l03619" name="l03619"></a><span class="lineno"> 3619</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> rtt_var_k = rtt_var * k;</div>
-<div class="line"><a id="l03620" name="l03620"></a><span class="lineno"> 3620</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> srtt_plus_var_term = srtt + max(clock_resolution_at_least, rtt_var_k);</div>
-<div class="line"><a id="l03621" name="l03621"></a><span class="lineno"> 3621</span>  dto = max(srtt_plus_var_term, floor);</div>
-<div class="line"><a id="l03622" name="l03622"></a><span class="lineno"> 3622</span>  dto = min(dto, ceiling);</div>
+<div class="line"><a id="l03542" name="l03542"></a><span class="lineno"> 3542</span>  <span class="keywordflow">if</span> (srtt == Fine_duration::zero())</div>
+<div class="line"><a id="l03543" name="l03543"></a><span class="lineno"> 3543</span>  {</div>
+<div class="line"><a id="l03544" name="l03544"></a><span class="lineno"> 3544</span>    <span class="comment">// First RTT measurement; initialize according to algorithm.</span></div>
+<div class="line"><a id="l03545" name="l03545"></a><span class="lineno"> 3545</span>    srtt = rtt;</div>
+<div class="line"><a id="l03546" name="l03546"></a><span class="lineno"> 3546</span>    rtt_var = rtt / 2;</div>
+<div class="line"><a id="l03547" name="l03547"></a><span class="lineno"> 3547</span> </div>
+<div class="line"><a id="l03548" name="l03548"></a><span class="lineno"> 3548</span>    <span class="comment">// Truncate results to millisecond representation for readability.</span></div>
+<div class="line"><a id="l03549" name="l03549"></a><span class="lineno"> 3549</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;First SRTT calculation for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
+<div class="line"><a id="l03550" name="l03550"></a><span class="lineno"> 3550</span>                   <span class="stringliteral">&quot;srtt = [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(srtt) &lt;&lt; <span class="stringliteral">&quot; = &quot;</span> &lt;&lt; srtt &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03551" name="l03551"></a><span class="lineno"> 3551</span>                   <span class="stringliteral">&quot;rtt_var = [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(rtt_var) &lt;&lt; <span class="stringliteral">&quot; = &quot;</span> &lt;&lt; rtt_var &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03552" name="l03552"></a><span class="lineno"> 3552</span>                   <span class="stringliteral">&quot;rtt = [&quot;</span> &lt;&lt; rtt &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l03553" name="l03553"></a><span class="lineno"> 3553</span>  }</div>
+<div class="line"><a id="l03554" name="l03554"></a><span class="lineno"> 3554</span>  <span class="keywordflow">else</span> <span class="comment">// if (SRTT was defined before this sample.)</span></div>
+<div class="line"><a id="l03555" name="l03555"></a><span class="lineno"> 3555</span>  {</div>
+<div class="line"><a id="l03556" name="l03556"></a><span class="lineno"> 3556</span>    <span class="comment">// Subsequent RTT measurements.</span></div>
+<div class="line"><a id="l03557" name="l03557"></a><span class="lineno"> 3557</span> </div>
+<div class="line"><a id="l03558" name="l03558"></a><span class="lineno"> 3558</span>    <span class="comment">// @todo Per last paragraph of RFC 6298-5, we MAY want to clear srtt/rtt_var afer multiple RTOs or maybe idleness.</span></div>
+<div class="line"><a id="l03559" name="l03559"></a><span class="lineno"> 3559</span>    <span class="comment">// (RTO = Retransmission Timeout, though we call it a Drop Timeout more accurately [we don&#39;t necessarily</span></div>
+<div class="line"><a id="l03560" name="l03560"></a><span class="lineno"> 3560</span>    <span class="comment">// retransmit on loss in NetFlow, unlike TCP].)</span></div>
+<div class="line"><a id="l03561" name="l03561"></a><span class="lineno"> 3561</span> </div>
+<div class="line"><a id="l03562" name="l03562"></a><span class="lineno"> 3562</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> prev_srtt = srtt;</div>
+<div class="line"><a id="l03563" name="l03563"></a><span class="lineno"> 3563</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> prev_rtt_var = rtt_var;</div>
+<div class="line"><a id="l03564" name="l03564"></a><span class="lineno"> 3564</span> </div>
+<div class="line"><a id="l03565" name="l03565"></a><span class="lineno"> 3565</span>    <span class="comment">/* Reason I used ratio&lt;&gt; instead of floating point constants: I don&#39;t want to use floating</span></div>
+<div class="line"><a id="l03566" name="l03566"></a><span class="lineno"> 3566</span><span class="comment">     * points in production code that much.  I don&#39;t necessarily trust it for consistent behavior across platforms...</span></div>
+<div class="line"><a id="l03567" name="l03567"></a><span class="lineno"> 3567</span><span class="comment">     * and in general I just find integers more predictable/easier to reason about in most contexts of net_flow.</span></div>
+<div class="line"><a id="l03568" name="l03568"></a><span class="lineno"> 3568</span><span class="comment">     * Reason I used ratio&lt;&gt; instead of just having separate integer constants for numerators and</span></div>
+<div class="line"><a id="l03569" name="l03569"></a><span class="lineno"> 3569</span><span class="comment">     * denominators: I&#39;d rather have ratio&lt;&gt; do the arithmetic for me (at compile time to boot!). */</span></div>
+<div class="line"><a id="l03570" name="l03570"></a><span class="lineno"> 3570</span>    <span class="keyword">using </span>Alpha = ratio&lt;1, 8&gt;; <span class="comment">// 1/8, per RFC.</span></div>
+<div class="line"><a id="l03571" name="l03571"></a><span class="lineno"> 3571</span>    <span class="keyword">using </span>One_minus_alpha = ratio_subtract&lt;ratio&lt;1&gt;, Alpha&gt;;</div>
+<div class="line"><a id="l03572" name="l03572"></a><span class="lineno"> 3572</span>    <span class="keyword">using </span>Beta = ratio&lt;1, 4&gt;; <span class="comment">// 1/4, per RFC.</span></div>
+<div class="line"><a id="l03573" name="l03573"></a><span class="lineno"> 3573</span>    <span class="keyword">using </span>One_minus_beta = ratio_subtract&lt;ratio&lt;1&gt;, Beta&gt;;</div>
+<div class="line"><a id="l03574" name="l03574"></a><span class="lineno"> 3574</span>    <span class="comment">// Now I can use X::num and X::den, such that X is the ratio X::num/X::den.</span></div>
+<div class="line"><a id="l03575" name="l03575"></a><span class="lineno"> 3575</span> </div>
+<div class="line"><a id="l03576" name="l03576"></a><span class="lineno"> 3576</span>    <span class="comment">// Compute |srtt - rtt|.</span></div>
+<div class="line"><a id="l03577" name="l03577"></a><span class="lineno"> 3577</span>    <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> abs_srtt_minus_rtt = srtt - rtt;</div>
+<div class="line"><a id="l03578" name="l03578"></a><span class="lineno"> 3578</span>    <span class="keywordflow">if</span> (abs_srtt_minus_rtt.count() &lt; 0)</div>
+<div class="line"><a id="l03579" name="l03579"></a><span class="lineno"> 3579</span>    {</div>
+<div class="line"><a id="l03580" name="l03580"></a><span class="lineno"> 3580</span>      abs_srtt_minus_rtt = -abs_srtt_minus_rtt;</div>
+<div class="line"><a id="l03581" name="l03581"></a><span class="lineno"> 3581</span>    }</div>
+<div class="line"><a id="l03582" name="l03582"></a><span class="lineno"> 3582</span> </div>
+<div class="line"><a id="l03583" name="l03583"></a><span class="lineno"> 3583</span>    <span class="comment">// Update the results per RFC.</span></div>
+<div class="line"><a id="l03584" name="l03584"></a><span class="lineno"> 3584</span>    rtt_var</div>
+<div class="line"><a id="l03585" name="l03585"></a><span class="lineno"> 3585</span>      = rtt_var * One_minus_beta::num / One_minus_beta::den</div>
+<div class="line"><a id="l03586" name="l03586"></a><span class="lineno"> 3586</span>        + abs_srtt_minus_rtt * Beta::num / Beta::den;</div>
+<div class="line"><a id="l03587" name="l03587"></a><span class="lineno"> 3587</span>    srtt</div>
+<div class="line"><a id="l03588" name="l03588"></a><span class="lineno"> 3588</span>      = srtt * One_minus_alpha::num / One_minus_alpha::den</div>
+<div class="line"><a id="l03589" name="l03589"></a><span class="lineno"> 3589</span>        + rtt * Alpha::num / Alpha::den;</div>
+<div class="line"><a id="l03590" name="l03590"></a><span class="lineno"> 3590</span> </div>
+<div class="line"><a id="l03591" name="l03591"></a><span class="lineno"> 3591</span>    <span class="comment">// Truncate results to millisecond representation for readability.</span></div>
+<div class="line"><a id="l03592" name="l03592"></a><span class="lineno"> 3592</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Next SRTT calculation for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
+<div class="line"><a id="l03593" name="l03593"></a><span class="lineno"> 3593</span>                   <span class="stringliteral">&quot;srtt = [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(srtt) &lt;&lt; <span class="stringliteral">&quot; = &quot;</span> &lt;&lt; srtt &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03594" name="l03594"></a><span class="lineno"> 3594</span>                   <span class="stringliteral">&quot;rtt_var = [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(rtt_var) &lt;&lt; <span class="stringliteral">&quot; = &quot;</span> &lt;&lt; rtt_var &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03595" name="l03595"></a><span class="lineno"> 3595</span>                   <span class="stringliteral">&quot;rtt = [&quot;</span> &lt;&lt; rtt &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03596" name="l03596"></a><span class="lineno"> 3596</span>                   <span class="stringliteral">&quot;prev_srtt = [&quot;</span> &lt;&lt; prev_srtt &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03597" name="l03597"></a><span class="lineno"> 3597</span>                   <span class="stringliteral">&quot;prev_rtt_var = [&quot;</span> &lt;&lt; prev_rtt_var &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03598" name="l03598"></a><span class="lineno"> 3598</span>                   <span class="stringliteral">&quot;alpha = &quot;</span> &lt;&lt; (ratio_string&lt;Alpha, char&gt;::prefix()) &lt;&lt; <span class="stringliteral">&quot;; &quot;</span></div>
+<div class="line"><a id="l03599" name="l03599"></a><span class="lineno"> 3599</span>                   <span class="stringliteral">&quot;(1 - alpha) = &quot;</span> &lt;&lt; (ratio_string&lt;One_minus_alpha, char&gt;::prefix()) &lt;&lt; <span class="stringliteral">&quot;; &quot;</span></div>
+<div class="line"><a id="l03600" name="l03600"></a><span class="lineno"> 3600</span>                   <span class="stringliteral">&quot;beta = &quot;</span> &lt;&lt; (ratio_string&lt;Beta, char&gt;::prefix()) &lt;&lt; <span class="stringliteral">&quot;; &quot;</span></div>
+<div class="line"><a id="l03601" name="l03601"></a><span class="lineno"> 3601</span>                   <span class="stringliteral">&quot;(1 - beta) = &quot;</span> &lt;&lt; (ratio_string&lt;One_minus_beta, char&gt;::prefix()) &lt;&lt; <span class="stringliteral">&quot;; &quot;</span></div>
+<div class="line"><a id="l03602" name="l03602"></a><span class="lineno"> 3602</span>                   <span class="stringliteral">&quot;|srtt - rtt| = [&quot;</span> &lt;&lt; abs_srtt_minus_rtt &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l03603" name="l03603"></a><span class="lineno"> 3603</span>  } <span class="comment">// else if (SRTT was defined before this sample)</span></div>
+<div class="line"><a id="l03604" name="l03604"></a><span class="lineno"> 3604</span> </div>
+<div class="line"><a id="l03605" name="l03605"></a><span class="lineno"> 3605</span>  <span class="comment">/* Now compute Drop Timeout (DTO), similar to TCP&#39;s RTO (Retransmission Timeout): the minimum</span></div>
+<div class="line"><a id="l03606" name="l03606"></a><span class="lineno"> 3606</span><span class="comment">   * amount of time we give an In-flight packet to get Acknowledged before considering it Dropped.</span></div>
+<div class="line"><a id="l03607" name="l03607"></a><span class="lineno"> 3607</span><span class="comment">   * Again we use RFC 6298 for DTO computation.</span></div>
+<div class="line"><a id="l03608" name="l03608"></a><span class="lineno"> 3608</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03609" name="l03609"></a><span class="lineno"> 3609</span><span class="comment">   * The formula is DTO = srtt + max(G, K * rtt_var), where K = 4 and G is the &quot;clock</span></div>
+<div class="line"><a id="l03610" name="l03610"></a><span class="lineno"> 3610</span><span class="comment">   * granularity.&quot;  Additionally, we are to put a floor of 1 second on DTO.  Finally, we are allowed</span></div>
+<div class="line"><a id="l03611" name="l03611"></a><span class="lineno"> 3611</span><span class="comment">   * to put a ceiling on DTO, as long as that ceiling is at least 60 seconds.</span></div>
+<div class="line"><a id="l03612" name="l03612"></a><span class="lineno"> 3612</span><span class="comment">   *</span></div>
+<div class="line"><a id="l03613" name="l03613"></a><span class="lineno"> 3613</span><span class="comment">   * G plays an important part in the RTO caclulation algorithm, so we must know it.  So what is it?</span></div>
+<div class="line"><a id="l03614" name="l03614"></a><span class="lineno"> 3614</span><span class="comment">   * We don&#39;t know.  We do however have a reasonably conservative upper bound; boost.timer</span></div>
+<div class="line"><a id="l03615" name="l03615"></a><span class="lineno"> 3615</span><span class="comment">   * documentation lists some popular OS+CPU combinations and notes that for none of them does</span></div>
+<div class="line"><a id="l03616" name="l03616"></a><span class="lineno"> 3616</span><span class="comment">   * high_resolution_timer exceed 5 microseconds.  Therefore, let us pick the exceedingly</span></div>
+<div class="line"><a id="l03617" name="l03617"></a><span class="lineno"> 3617</span><span class="comment">   * conservative G = 500 microseconds = 1/2 milliseconds. */</span></div>
+<div class="line"><a id="l03618" name="l03618"></a><span class="lineno"> 3618</span> </div>
+<div class="line"><a id="l03619" name="l03619"></a><span class="lineno"> 3619</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> clock_resolution_at_least = microseconds(500);</div>
+<div class="line"><a id="l03620" name="l03620"></a><span class="lineno"> 3620</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> floor = seconds(1);</div>
+<div class="line"><a id="l03621" name="l03621"></a><span class="lineno"> 3621</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> ceiling = sock-&gt;opt(sock-&gt;m_opts.m_dyn_drop_timeout_ceiling);</div>
+<div class="line"><a id="l03622" name="l03622"></a><span class="lineno"> 3622</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> k = 4;</div>
 <div class="line"><a id="l03623" name="l03623"></a><span class="lineno"> 3623</span> </div>
-<div class="line"><a id="l03624" name="l03624"></a><span class="lineno"> 3624</span>  <span class="comment">// Truncate results to millisecond representation for readability.</span></div>
-<div class="line"><a id="l03625" name="l03625"></a><span class="lineno"> 3625</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Drop Timeout (DTO) calculation: &quot;</span></div>
-<div class="line"><a id="l03626" name="l03626"></a><span class="lineno"> 3626</span>                 <span class="stringliteral">&quot;dto = [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(dto) &lt;&lt; <span class="stringliteral">&quot; = &quot;</span> &lt;&lt; dto &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03627" name="l03627"></a><span class="lineno"> 3627</span>                 <span class="stringliteral">&quot;rtt_var * k = [&quot;</span> &lt;&lt; rtt_var_k &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03628" name="l03628"></a><span class="lineno"> 3628</span>                 <span class="stringliteral">&quot;srtt + max(G, rtt_var * k) = [&quot;</span> &lt;&lt; srtt_plus_var_term &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03629" name="l03629"></a><span class="lineno"> 3629</span>                 <span class="stringliteral">&quot;k = [&quot;</span> &lt;&lt; k &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03630" name="l03630"></a><span class="lineno"> 3630</span>                 <span class="stringliteral">&quot;floor = [&quot;</span> &lt;&lt; floor &lt;&lt; <span class="stringliteral">&quot;]; ceiling = [&quot;</span> &lt;&lt; ceiling &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03631" name="l03631"></a><span class="lineno"> 3631</span>                 <span class="stringliteral">&quot;clock_resolution = [&quot;</span> &lt;&lt; clock_resolution_at_least &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03632" name="l03632"></a><span class="lineno"> 3632</span>                 <span class="stringliteral">&quot;prev_dto = [&quot;</span> &lt;&lt; prev_dto &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l03633" name="l03633"></a><span class="lineno"> 3633</span>} <span class="comment">// void Node::new_round_trip_time_sample()</span></div>
-<div class="line"><a id="l03634" name="l03634"></a><span class="lineno"> 3634</span> </div>
-<div class="line"><a id="l03635" name="l03635"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a24785d3e04e0a9cd5daca43bc867e5aa"> 3635</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a24785d3e04e0a9cd5daca43bc867e5aa">Node::log_snd_window</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock, <span class="keywordtype">bool</span> force_verbose_info_logging)<span class="keyword"> const</span></div>
-<div class="line"><a id="l03636" name="l03636"></a><span class="lineno"> 3636</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l03637" name="l03637"></a><span class="lineno"> 3637</span>  <span class="keyword">using </span>std::vector;</div>
-<div class="line"><a id="l03638" name="l03638"></a><span class="lineno"> 3638</span>  <span class="keyword">using </span>std::list;</div>
-<div class="line"><a id="l03639" name="l03639"></a><span class="lineno"> 3639</span>  <span class="keyword">using </span>std::string;</div>
-<div class="line"><a id="l03640" name="l03640"></a><span class="lineno"> 3640</span>  <span class="keyword">using </span>boost::algorithm::join;</div>
-<div class="line"><a id="l03641" name="l03641"></a><span class="lineno"> 3641</span>  <span class="keyword">using </span>boost::prior;</div>
-<div class="line"><a id="l03642" name="l03642"></a><span class="lineno"> 3642</span>  <span class="keyword">using </span><a class="code hl_class" href="classflow_1_1util_1_1String__ostream.html">util::String_ostream</a>;</div>
-<div class="line"><a id="l03643" name="l03643"></a><span class="lineno"> 3643</span>  <span class="keyword">using </span>std::flush;</div>
-<div class="line"><a id="l03644" name="l03644"></a><span class="lineno"> 3644</span> </div>
-<div class="line"><a id="l03645" name="l03645"></a><span class="lineno"> 3645</span>  <span class="comment">// We&#39;re in thread W.</span></div>
-<div class="line"><a id="l03646" name="l03646"></a><span class="lineno"> 3646</span> </div>
-<div class="line"><a id="l03647" name="l03647"></a><span class="lineno"> 3647</span>  <span class="comment">// For brevity and a little speed:</span></div>
-<div class="line"><a id="l03648" name="l03648"></a><span class="lineno"> 3648</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; snd_flying_pkts_by_seq = sock-&gt;m_snd_flying_pkts_by_seq_num;</div>
-<div class="line"><a id="l03649" name="l03649"></a><span class="lineno"> 3649</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
-<div class="line"><a id="l03650" name="l03650"></a><span class="lineno"> 3650</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> num_flying_pkts = snd_flying_pkts_by_seq.size();</div>
-<div class="line"><a id="l03651" name="l03651"></a><span class="lineno"> 3651</span> </div>
-<div class="line"><a id="l03652" name="l03652"></a><span class="lineno"> 3652</span>  <span class="comment">// force_verbose_info_logging =&gt; log the most detail, as INFO (if INFO logging enabled).</span></div>
-<div class="line"><a id="l03653" name="l03653"></a><span class="lineno"> 3653</span> </div>
-<div class="line"><a id="l03654" name="l03654"></a><span class="lineno"> 3654</span>  <span class="keywordflow">if</span> (snd_flying_pkts_by_seq.empty())</div>
-<div class="line"><a id="l03655" name="l03655"></a><span class="lineno"> 3655</span>  {</div>
-<div class="line"><a id="l03656" name="l03656"></a><span class="lineno"> 3656</span>    <span class="comment">// No In-flight packets, so this is brief enough for TRACE as opposed to DATA.</span></div>
-<div class="line"><a id="l03657" name="l03657"></a><span class="lineno"> 3657</span>    <a class="code hl_define" href="log_8hpp.html#a692bbadd8b5c3e9cef7a0bbea1915e66">FLOW_LOG_WITH_CHECKING</a>(force_verbose_info_logging ? <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">log::Sev::S_INFO</a> : <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">log::Sev::S_TRACE</a>,</div>
-<div class="line"><a id="l03658" name="l03658"></a><span class="lineno"> 3658</span>                           <span class="stringliteral">&quot;Send window state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: cong_wnd &quot;</span></div>
-<div class="line"><a id="l03659" name="l03659"></a><span class="lineno"> 3659</span>                             <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(sock-&gt;m_snd_cong_ctl-&gt;congestion_window_bytes()) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03660" name="l03660"></a><span class="lineno"> 3660</span>                             <span class="stringliteral">&quot;sent+acked/dropped &quot;</span></div>
-<div class="line"><a id="l03661" name="l03661"></a><span class="lineno"> 3661</span>                             <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;m_snd_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; sock-&gt;m_snd_next_seq_num &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l03662" name="l03662"></a><span class="lineno"> 3662</span>                             <span class="stringliteral">&quot;unsent [&quot;</span> &lt;&lt; sock-&gt;m_snd_next_seq_num &lt;&lt; <span class="stringliteral">&quot;, ...).&quot;</span>);</div>
-<div class="line"><a id="l03663" name="l03663"></a><span class="lineno"> 3663</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l03664" name="l03664"></a><span class="lineno"> 3664</span>  }</div>
-<div class="line"><a id="l03665" name="l03665"></a><span class="lineno"> 3665</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l03666" name="l03666"></a><span class="lineno"> 3666</span> </div>
-<div class="line"><a id="l03667" name="l03667"></a><span class="lineno"> 3667</span>  <span class="keyword">auto</span> <span class="keyword">const</span> logger_ptr = <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>();</div>
-<div class="line"><a id="l03668" name="l03668"></a><span class="lineno"> 3668</span>  <span class="keywordflow">if</span> (((!logger_ptr) || (!logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">log::Sev::S_DATA</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>()))) &amp;&amp;</div>
-<div class="line"><a id="l03669" name="l03669"></a><span class="lineno"> 3669</span>      (!(force_verbose_info_logging &amp;&amp; logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">log::Sev::S_INFO</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>()))))</div>
-<div class="line"><a id="l03670" name="l03670"></a><span class="lineno"> 3670</span>  {</div>
-<div class="line"><a id="l03671" name="l03671"></a><span class="lineno"> 3671</span>    <span class="comment">// Can&#39;t print entire In-flight data structure, but can print a summary, if TRACE enabled.</span></div>
-<div class="line"><a id="l03672" name="l03672"></a><span class="lineno"> 3672</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a></div>
-<div class="line"><a id="l03673" name="l03673"></a><span class="lineno"> 3673</span>      (<span class="stringliteral">&quot;Send window state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: cong_wnd &quot;</span></div>
-<div class="line"><a id="l03674" name="l03674"></a><span class="lineno"> 3674</span>       <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(sock-&gt;m_snd_cong_ctl-&gt;congestion_window_bytes()) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03675" name="l03675"></a><span class="lineno"> 3675</span>       <span class="stringliteral">&quot;sent+acked/dropped [&quot;</span> &lt;&lt; sock-&gt;m_snd_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; snd_flying_pkts_by_seq.begin()-&gt;first &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l03676" name="l03676"></a><span class="lineno"> 3676</span>       <span class="stringliteral">&quot;in-flight [&quot;</span> &lt;&lt; sock-&gt;m_snd_flying_bytes &lt;&lt; <span class="stringliteral">&quot;] bytes: &quot;</span> &lt;&lt; num_flying_pkts &lt;&lt; <span class="stringliteral">&quot;:{...} &quot;</span></div>
-<div class="line"><a id="l03677" name="l03677"></a><span class="lineno"> 3677</span>       <span class="stringliteral">&quot;unsent [&quot;</span> &lt;&lt; sock-&gt;m_snd_next_seq_num &lt;&lt; <span class="stringliteral">&quot;, ...).&quot;</span>);</div>
-<div class="line"><a id="l03678" name="l03678"></a><span class="lineno"> 3678</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l03679" name="l03679"></a><span class="lineno"> 3679</span>  }</div>
-<div class="line"><a id="l03680" name="l03680"></a><span class="lineno"> 3680</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l03681" name="l03681"></a><span class="lineno"> 3681</span> </div>
-<div class="line"><a id="l03682" name="l03682"></a><span class="lineno"> 3682</span>  <span class="comment">// Very verbose and slow!</span></div>
-<div class="line"><a id="l03683" name="l03683"></a><span class="lineno"> 3683</span> </div>
-<div class="line"><a id="l03684" name="l03684"></a><span class="lineno"> 3684</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> = sock-&gt;rexmit_on();</div>
-<div class="line"><a id="l03685" name="l03685"></a><span class="lineno"> 3685</span> </div>
-<div class="line"><a id="l03686" name="l03686"></a><span class="lineno"> 3686</span>  vector&lt;string&gt; pkt_strs;</div>
-<div class="line"><a id="l03687" name="l03687"></a><span class="lineno"> 3687</span>  pkt_strs.reserve(num_flying_pkts);</div>
-<div class="line"><a id="l03688" name="l03688"></a><span class="lineno"> 3688</span>  <span class="keywordflow">for</span> (<a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#abd6f3174914c3ec559954b4125f2f9dd">Peer_socket::Sent_pkt_ordered_by_seq_const_iter</a> pkt_it_it = snd_flying_pkts_by_seq.begin();</div>
-<div class="line"><a id="l03689" name="l03689"></a><span class="lineno"> 3689</span>       pkt_it_it != snd_flying_pkts_by_seq.end();</div>
-<div class="line"><a id="l03690" name="l03690"></a><span class="lineno"> 3690</span>       ++pkt_it_it)</div>
-<div class="line"><a id="l03691" name="l03691"></a><span class="lineno"> 3691</span>  {</div>
-<div class="line"><a id="l03692" name="l03692"></a><span class="lineno"> 3692</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> start, end;</div>
-<div class="line"><a id="l03693" name="l03693"></a><span class="lineno"> 3693</span>    get_seq_num_range(pkt_it_it-&gt;second, &amp;start, &amp;end);</div>
-<div class="line"><a id="l03694" name="l03694"></a><span class="lineno"> 3694</span> </div>
-<div class="line"><a id="l03695" name="l03695"></a><span class="lineno"> 3695</span>    <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Sent_packet::Const_ptr</a> sent_pkt = pkt_it_it-&gt;second-&gt;second;</div>
-<div class="line"><a id="l03696" name="l03696"></a><span class="lineno"> 3696</span> </div>
-<div class="line"><a id="l03697" name="l03697"></a><span class="lineno"> 3697</span>    String_ostream pkt_str_os;</div>
-<div class="line"><a id="l03698" name="l03698"></a><span class="lineno"> 3698</span>    pkt_str_os.os() &lt;&lt; <span class="charliteral">&#39;[&#39;</span> &lt;&lt; start;</div>
-<div class="line"><a id="l03699" name="l03699"></a><span class="lineno"> 3699</span>    <span class="keywordflow">if</span> (<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>)</div>
-<div class="line"><a id="l03700" name="l03700"></a><span class="lineno"> 3700</span>    {</div>
-<div class="line"><a id="l03701" name="l03701"></a><span class="lineno"> 3701</span>      pkt_str_os.os() &lt;&lt; <span class="charliteral">&#39;[&#39;</span> &lt;&lt; int(sent_pkt-&gt;m_packet-&gt;m_rexmit_id) &lt;&lt; <span class="charliteral">&#39;/&#39;</span> &lt;&lt; sent_pkt-&gt;m_sent_when.back().m_order_num</div>
-<div class="line"><a id="l03702" name="l03702"></a><span class="lineno"> 3702</span>                      &lt;&lt; <span class="stringliteral">&quot;], &quot;</span>;</div>
-<div class="line"><a id="l03703" name="l03703"></a><span class="lineno"> 3703</span>    }</div>
-<div class="line"><a id="l03704" name="l03704"></a><span class="lineno"> 3704</span>    <span class="keywordflow">else</span></div>
-<div class="line"><a id="l03705" name="l03705"></a><span class="lineno"> 3705</span>    {</div>
-<div class="line"><a id="l03706" name="l03706"></a><span class="lineno"> 3706</span>      pkt_str_os.os() &lt;&lt; <span class="stringliteral">&quot;, &quot;</span>;</div>
-<div class="line"><a id="l03707" name="l03707"></a><span class="lineno"> 3707</span>    }</div>
-<div class="line"><a id="l03708" name="l03708"></a><span class="lineno"> 3708</span>    pkt_str_os.os() &lt;&lt; end &lt;&lt; <span class="stringliteral">&quot;)&lt;&quot;</span> &lt;&lt; sent_pkt-&gt;m_acks_after_me &lt;&lt; <span class="stringliteral">&quot;acks&quot;</span> &lt;&lt; flush;</div>
-<div class="line"><a id="l03709" name="l03709"></a><span class="lineno"> 3709</span> </div>
-<div class="line"><a id="l03710" name="l03710"></a><span class="lineno"> 3710</span>    pkt_strs.push_back(pkt_str_os.str());</div>
-<div class="line"><a id="l03711" name="l03711"></a><span class="lineno"> 3711</span>  }</div>
-<div class="line"><a id="l03712" name="l03712"></a><span class="lineno"> 3712</span> </div>
-<div class="line"><a id="l03713" name="l03713"></a><span class="lineno"> 3713</span>  <a class="code hl_define" href="log_8hpp.html#a5daa2b6d16edea74bb8bddc75f7fb801">FLOW_LOG_WITHOUT_CHECKING</a></div>
-<div class="line"><a id="l03714" name="l03714"></a><span class="lineno"> 3714</span>    (force_verbose_info_logging ? <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">log::Sev::S_INFO</a> : <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">log::Sev::S_DATA</a>,</div>
-<div class="line"><a id="l03715" name="l03715"></a><span class="lineno"> 3715</span>     <span class="stringliteral">&quot;Send window state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: cong_wnd &quot;</span></div>
-<div class="line"><a id="l03716" name="l03716"></a><span class="lineno"> 3716</span>       <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(sock-&gt;m_snd_cong_ctl-&gt;congestion_window_bytes()) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l03717" name="l03717"></a><span class="lineno"> 3717</span>       <span class="stringliteral">&quot;sent+acked/dropped [&quot;</span> &lt;&lt; sock-&gt;m_snd_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; snd_flying_pkts_by_seq.begin()-&gt;first &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l03718" name="l03718"></a><span class="lineno"> 3718</span>       <span class="stringliteral">&quot;in-flight &quot;</span></div>
-<div class="line"><a id="l03719" name="l03719"></a><span class="lineno"> 3719</span>       <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;m_snd_flying_bytes &lt;&lt; <span class="stringliteral">&quot;] bytes: &quot;</span> &lt;&lt; num_flying_pkts &lt;&lt; <span class="stringliteral">&quot;:{&quot;</span> &lt;&lt; join(pkt_strs, <span class="stringliteral">&quot; &quot;</span>) &lt;&lt;</div>
-<div class="line"><a id="l03720" name="l03720"></a><span class="lineno"> 3720</span>       <span class="stringliteral">&quot;} unsent [&quot;</span> &lt;&lt; sock-&gt;m_snd_next_seq_num &lt;&lt; <span class="stringliteral">&quot;, ...).&quot;</span>);</div>
-<div class="line"><a id="l03721" name="l03721"></a><span class="lineno"> 3721</span> </div>
-<div class="line"><a id="l03722" name="l03722"></a><span class="lineno"> 3722</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>)</div>
-<div class="line"><a id="l03723" name="l03723"></a><span class="lineno"> 3723</span>  {</div>
-<div class="line"><a id="l03724" name="l03724"></a><span class="lineno"> 3724</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l03725" name="l03725"></a><span class="lineno"> 3725</span>  }</div>
-<div class="line"><a id="l03726" name="l03726"></a><span class="lineno"> 3726</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l03624" name="l03624"></a><span class="lineno"> 3624</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> prev_dto = dto;</div>
+<div class="line"><a id="l03625" name="l03625"></a><span class="lineno"> 3625</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> rtt_var_k = rtt_var * k;</div>
+<div class="line"><a id="l03626" name="l03626"></a><span class="lineno"> 3626</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> srtt_plus_var_term = srtt + max(clock_resolution_at_least, rtt_var_k);</div>
+<div class="line"><a id="l03627" name="l03627"></a><span class="lineno"> 3627</span>  dto = max(srtt_plus_var_term, floor);</div>
+<div class="line"><a id="l03628" name="l03628"></a><span class="lineno"> 3628</span>  dto = min(dto, ceiling);</div>
+<div class="line"><a id="l03629" name="l03629"></a><span class="lineno"> 3629</span> </div>
+<div class="line"><a id="l03630" name="l03630"></a><span class="lineno"> 3630</span>  <span class="comment">// Truncate results to millisecond representation for readability.</span></div>
+<div class="line"><a id="l03631" name="l03631"></a><span class="lineno"> 3631</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Drop Timeout (DTO) calculation: &quot;</span></div>
+<div class="line"><a id="l03632" name="l03632"></a><span class="lineno"> 3632</span>                 <span class="stringliteral">&quot;dto = [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(dto) &lt;&lt; <span class="stringliteral">&quot; = &quot;</span> &lt;&lt; dto &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03633" name="l03633"></a><span class="lineno"> 3633</span>                 <span class="stringliteral">&quot;rtt_var * k = [&quot;</span> &lt;&lt; rtt_var_k &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03634" name="l03634"></a><span class="lineno"> 3634</span>                 <span class="stringliteral">&quot;srtt + max(G, rtt_var * k) = [&quot;</span> &lt;&lt; srtt_plus_var_term &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03635" name="l03635"></a><span class="lineno"> 3635</span>                 <span class="stringliteral">&quot;k = [&quot;</span> &lt;&lt; k &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03636" name="l03636"></a><span class="lineno"> 3636</span>                 <span class="stringliteral">&quot;floor = [&quot;</span> &lt;&lt; floor &lt;&lt; <span class="stringliteral">&quot;]; ceiling = [&quot;</span> &lt;&lt; ceiling &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03637" name="l03637"></a><span class="lineno"> 3637</span>                 <span class="stringliteral">&quot;clock_resolution = [&quot;</span> &lt;&lt; clock_resolution_at_least &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03638" name="l03638"></a><span class="lineno"> 3638</span>                 <span class="stringliteral">&quot;prev_dto = [&quot;</span> &lt;&lt; prev_dto &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l03639" name="l03639"></a><span class="lineno"> 3639</span>} <span class="comment">// void Node::new_round_trip_time_sample()</span></div>
+<div class="line"><a id="l03640" name="l03640"></a><span class="lineno"> 3640</span> </div>
+<div class="line"><a id="l03641" name="l03641"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a24785d3e04e0a9cd5daca43bc867e5aa"> 3641</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a24785d3e04e0a9cd5daca43bc867e5aa">Node::log_snd_window</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock, <span class="keywordtype">bool</span> force_verbose_info_logging)<span class="keyword"> const</span></div>
+<div class="line"><a id="l03642" name="l03642"></a><span class="lineno"> 3642</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l03643" name="l03643"></a><span class="lineno"> 3643</span>  <span class="keyword">using </span>std::vector;</div>
+<div class="line"><a id="l03644" name="l03644"></a><span class="lineno"> 3644</span>  <span class="keyword">using </span>std::list;</div>
+<div class="line"><a id="l03645" name="l03645"></a><span class="lineno"> 3645</span>  <span class="keyword">using </span>std::string;</div>
+<div class="line"><a id="l03646" name="l03646"></a><span class="lineno"> 3646</span>  <span class="keyword">using </span>boost::algorithm::join;</div>
+<div class="line"><a id="l03647" name="l03647"></a><span class="lineno"> 3647</span>  <span class="keyword">using </span>boost::prior;</div>
+<div class="line"><a id="l03648" name="l03648"></a><span class="lineno"> 3648</span>  <span class="keyword">using </span><a class="code hl_class" href="classflow_1_1util_1_1String__ostream.html">util::String_ostream</a>;</div>
+<div class="line"><a id="l03649" name="l03649"></a><span class="lineno"> 3649</span>  <span class="keyword">using </span>std::flush;</div>
+<div class="line"><a id="l03650" name="l03650"></a><span class="lineno"> 3650</span> </div>
+<div class="line"><a id="l03651" name="l03651"></a><span class="lineno"> 3651</span>  <span class="comment">// We&#39;re in thread W.</span></div>
+<div class="line"><a id="l03652" name="l03652"></a><span class="lineno"> 3652</span> </div>
+<div class="line"><a id="l03653" name="l03653"></a><span class="lineno"> 3653</span>  <span class="comment">// For brevity and a little speed:</span></div>
+<div class="line"><a id="l03654" name="l03654"></a><span class="lineno"> 3654</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; snd_flying_pkts_by_seq = sock-&gt;m_snd_flying_pkts_by_seq_num;</div>
+<div class="line"><a id="l03655" name="l03655"></a><span class="lineno"> 3655</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
+<div class="line"><a id="l03656" name="l03656"></a><span class="lineno"> 3656</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> num_flying_pkts = snd_flying_pkts_by_seq.size();</div>
+<div class="line"><a id="l03657" name="l03657"></a><span class="lineno"> 3657</span> </div>
+<div class="line"><a id="l03658" name="l03658"></a><span class="lineno"> 3658</span>  <span class="comment">// force_verbose_info_logging =&gt; log the most detail, as INFO (if INFO logging enabled).</span></div>
+<div class="line"><a id="l03659" name="l03659"></a><span class="lineno"> 3659</span> </div>
+<div class="line"><a id="l03660" name="l03660"></a><span class="lineno"> 3660</span>  <span class="keywordflow">if</span> (snd_flying_pkts_by_seq.empty())</div>
+<div class="line"><a id="l03661" name="l03661"></a><span class="lineno"> 3661</span>  {</div>
+<div class="line"><a id="l03662" name="l03662"></a><span class="lineno"> 3662</span>    <span class="comment">// No In-flight packets, so this is brief enough for TRACE as opposed to DATA.</span></div>
+<div class="line"><a id="l03663" name="l03663"></a><span class="lineno"> 3663</span>    <a class="code hl_define" href="log_8hpp.html#a692bbadd8b5c3e9cef7a0bbea1915e66">FLOW_LOG_WITH_CHECKING</a>(force_verbose_info_logging ? <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">log::Sev::S_INFO</a> : <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">log::Sev::S_TRACE</a>,</div>
+<div class="line"><a id="l03664" name="l03664"></a><span class="lineno"> 3664</span>                           <span class="stringliteral">&quot;Send window state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: cong_wnd &quot;</span></div>
+<div class="line"><a id="l03665" name="l03665"></a><span class="lineno"> 3665</span>                             <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(sock-&gt;m_snd_cong_ctl-&gt;congestion_window_bytes()) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03666" name="l03666"></a><span class="lineno"> 3666</span>                             <span class="stringliteral">&quot;sent+acked/dropped &quot;</span></div>
+<div class="line"><a id="l03667" name="l03667"></a><span class="lineno"> 3667</span>                             <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;m_snd_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; sock-&gt;m_snd_next_seq_num &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l03668" name="l03668"></a><span class="lineno"> 3668</span>                             <span class="stringliteral">&quot;unsent [&quot;</span> &lt;&lt; sock-&gt;m_snd_next_seq_num &lt;&lt; <span class="stringliteral">&quot;, ...).&quot;</span>);</div>
+<div class="line"><a id="l03669" name="l03669"></a><span class="lineno"> 3669</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l03670" name="l03670"></a><span class="lineno"> 3670</span>  }</div>
+<div class="line"><a id="l03671" name="l03671"></a><span class="lineno"> 3671</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l03672" name="l03672"></a><span class="lineno"> 3672</span> </div>
+<div class="line"><a id="l03673" name="l03673"></a><span class="lineno"> 3673</span>  <span class="keyword">auto</span> <span class="keyword">const</span> logger_ptr = <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>();</div>
+<div class="line"><a id="l03674" name="l03674"></a><span class="lineno"> 3674</span>  <span class="keywordflow">if</span> (((!logger_ptr) || (!logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">log::Sev::S_DATA</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>()))) &amp;&amp;</div>
+<div class="line"><a id="l03675" name="l03675"></a><span class="lineno"> 3675</span>      (!(force_verbose_info_logging &amp;&amp; logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">log::Sev::S_INFO</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>()))))</div>
+<div class="line"><a id="l03676" name="l03676"></a><span class="lineno"> 3676</span>  {</div>
+<div class="line"><a id="l03677" name="l03677"></a><span class="lineno"> 3677</span>    <span class="comment">// Can&#39;t print entire In-flight data structure, but can print a summary, if TRACE enabled.</span></div>
+<div class="line"><a id="l03678" name="l03678"></a><span class="lineno"> 3678</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a></div>
+<div class="line"><a id="l03679" name="l03679"></a><span class="lineno"> 3679</span>      (<span class="stringliteral">&quot;Send window state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: cong_wnd &quot;</span></div>
+<div class="line"><a id="l03680" name="l03680"></a><span class="lineno"> 3680</span>       <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(sock-&gt;m_snd_cong_ctl-&gt;congestion_window_bytes()) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03681" name="l03681"></a><span class="lineno"> 3681</span>       <span class="stringliteral">&quot;sent+acked/dropped [&quot;</span> &lt;&lt; sock-&gt;m_snd_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; snd_flying_pkts_by_seq.begin()-&gt;first &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l03682" name="l03682"></a><span class="lineno"> 3682</span>       <span class="stringliteral">&quot;in-flight [&quot;</span> &lt;&lt; sock-&gt;m_snd_flying_bytes &lt;&lt; <span class="stringliteral">&quot;] bytes: &quot;</span> &lt;&lt; num_flying_pkts &lt;&lt; <span class="stringliteral">&quot;:{...} &quot;</span></div>
+<div class="line"><a id="l03683" name="l03683"></a><span class="lineno"> 3683</span>       <span class="stringliteral">&quot;unsent [&quot;</span> &lt;&lt; sock-&gt;m_snd_next_seq_num &lt;&lt; <span class="stringliteral">&quot;, ...).&quot;</span>);</div>
+<div class="line"><a id="l03684" name="l03684"></a><span class="lineno"> 3684</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l03685" name="l03685"></a><span class="lineno"> 3685</span>  }</div>
+<div class="line"><a id="l03686" name="l03686"></a><span class="lineno"> 3686</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l03687" name="l03687"></a><span class="lineno"> 3687</span> </div>
+<div class="line"><a id="l03688" name="l03688"></a><span class="lineno"> 3688</span>  <span class="comment">// Very verbose and slow!</span></div>
+<div class="line"><a id="l03689" name="l03689"></a><span class="lineno"> 3689</span> </div>
+<div class="line"><a id="l03690" name="l03690"></a><span class="lineno"> 3690</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a> = sock-&gt;rexmit_on();</div>
+<div class="line"><a id="l03691" name="l03691"></a><span class="lineno"> 3691</span> </div>
+<div class="line"><a id="l03692" name="l03692"></a><span class="lineno"> 3692</span>  vector&lt;string&gt; pkt_strs;</div>
+<div class="line"><a id="l03693" name="l03693"></a><span class="lineno"> 3693</span>  pkt_strs.reserve(num_flying_pkts);</div>
+<div class="line"><a id="l03694" name="l03694"></a><span class="lineno"> 3694</span>  <span class="keywordflow">for</span> (<a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#abd6f3174914c3ec559954b4125f2f9dd">Peer_socket::Sent_pkt_ordered_by_seq_const_iter</a> pkt_it_it = snd_flying_pkts_by_seq.begin();</div>
+<div class="line"><a id="l03695" name="l03695"></a><span class="lineno"> 3695</span>       pkt_it_it != snd_flying_pkts_by_seq.end();</div>
+<div class="line"><a id="l03696" name="l03696"></a><span class="lineno"> 3696</span>       ++pkt_it_it)</div>
+<div class="line"><a id="l03697" name="l03697"></a><span class="lineno"> 3697</span>  {</div>
+<div class="line"><a id="l03698" name="l03698"></a><span class="lineno"> 3698</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> start, end;</div>
+<div class="line"><a id="l03699" name="l03699"></a><span class="lineno"> 3699</span>    get_seq_num_range(pkt_it_it-&gt;second, &amp;start, &amp;end);</div>
+<div class="line"><a id="l03700" name="l03700"></a><span class="lineno"> 3700</span> </div>
+<div class="line"><a id="l03701" name="l03701"></a><span class="lineno"> 3701</span>    <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Sent_packet::Const_ptr</a> sent_pkt = pkt_it_it-&gt;second-&gt;second;</div>
+<div class="line"><a id="l03702" name="l03702"></a><span class="lineno"> 3702</span> </div>
+<div class="line"><a id="l03703" name="l03703"></a><span class="lineno"> 3703</span>    String_ostream pkt_str_os;</div>
+<div class="line"><a id="l03704" name="l03704"></a><span class="lineno"> 3704</span>    pkt_str_os.os() &lt;&lt; <span class="charliteral">&#39;[&#39;</span> &lt;&lt; start;</div>
+<div class="line"><a id="l03705" name="l03705"></a><span class="lineno"> 3705</span>    <span class="keywordflow">if</span> (<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>)</div>
+<div class="line"><a id="l03706" name="l03706"></a><span class="lineno"> 3706</span>    {</div>
+<div class="line"><a id="l03707" name="l03707"></a><span class="lineno"> 3707</span>      pkt_str_os.os() &lt;&lt; <span class="charliteral">&#39;[&#39;</span> &lt;&lt; int(sent_pkt-&gt;m_packet-&gt;m_rexmit_id) &lt;&lt; <span class="charliteral">&#39;/&#39;</span> &lt;&lt; sent_pkt-&gt;m_sent_when.back().m_order_num</div>
+<div class="line"><a id="l03708" name="l03708"></a><span class="lineno"> 3708</span>                      &lt;&lt; <span class="stringliteral">&quot;], &quot;</span>;</div>
+<div class="line"><a id="l03709" name="l03709"></a><span class="lineno"> 3709</span>    }</div>
+<div class="line"><a id="l03710" name="l03710"></a><span class="lineno"> 3710</span>    <span class="keywordflow">else</span></div>
+<div class="line"><a id="l03711" name="l03711"></a><span class="lineno"> 3711</span>    {</div>
+<div class="line"><a id="l03712" name="l03712"></a><span class="lineno"> 3712</span>      pkt_str_os.os() &lt;&lt; <span class="stringliteral">&quot;, &quot;</span>;</div>
+<div class="line"><a id="l03713" name="l03713"></a><span class="lineno"> 3713</span>    }</div>
+<div class="line"><a id="l03714" name="l03714"></a><span class="lineno"> 3714</span>    pkt_str_os.os() &lt;&lt; end &lt;&lt; <span class="stringliteral">&quot;)&lt;&quot;</span> &lt;&lt; sent_pkt-&gt;m_acks_after_me &lt;&lt; <span class="stringliteral">&quot;acks&quot;</span> &lt;&lt; flush;</div>
+<div class="line"><a id="l03715" name="l03715"></a><span class="lineno"> 3715</span> </div>
+<div class="line"><a id="l03716" name="l03716"></a><span class="lineno"> 3716</span>    pkt_strs.push_back(pkt_str_os.str());</div>
+<div class="line"><a id="l03717" name="l03717"></a><span class="lineno"> 3717</span>  }</div>
+<div class="line"><a id="l03718" name="l03718"></a><span class="lineno"> 3718</span> </div>
+<div class="line"><a id="l03719" name="l03719"></a><span class="lineno"> 3719</span>  <a class="code hl_define" href="log_8hpp.html#a5daa2b6d16edea74bb8bddc75f7fb801">FLOW_LOG_WITHOUT_CHECKING</a></div>
+<div class="line"><a id="l03720" name="l03720"></a><span class="lineno"> 3720</span>    (force_verbose_info_logging ? <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">log::Sev::S_INFO</a> : <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">log::Sev::S_DATA</a>,</div>
+<div class="line"><a id="l03721" name="l03721"></a><span class="lineno"> 3721</span>     <span class="stringliteral">&quot;Send window state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: cong_wnd &quot;</span></div>
+<div class="line"><a id="l03722" name="l03722"></a><span class="lineno"> 3722</span>       <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(sock-&gt;m_snd_cong_ctl-&gt;congestion_window_bytes()) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l03723" name="l03723"></a><span class="lineno"> 3723</span>       <span class="stringliteral">&quot;sent+acked/dropped [&quot;</span> &lt;&lt; sock-&gt;m_snd_init_seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; snd_flying_pkts_by_seq.begin()-&gt;first &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l03724" name="l03724"></a><span class="lineno"> 3724</span>       <span class="stringliteral">&quot;in-flight &quot;</span></div>
+<div class="line"><a id="l03725" name="l03725"></a><span class="lineno"> 3725</span>       <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;m_snd_flying_bytes &lt;&lt; <span class="stringliteral">&quot;] bytes: &quot;</span> &lt;&lt; num_flying_pkts &lt;&lt; <span class="stringliteral">&quot;:{&quot;</span> &lt;&lt; join(pkt_strs, <span class="stringliteral">&quot; &quot;</span>) &lt;&lt;</div>
+<div class="line"><a id="l03726" name="l03726"></a><span class="lineno"> 3726</span>       <span class="stringliteral">&quot;} unsent [&quot;</span> &lt;&lt; sock-&gt;m_snd_next_seq_num &lt;&lt; <span class="stringliteral">&quot;, ...).&quot;</span>);</div>
 <div class="line"><a id="l03727" name="l03727"></a><span class="lineno"> 3727</span> </div>
-<div class="line"><a id="l03728" name="l03728"></a><span class="lineno"> 3728</span>  <span class="comment">// Since retransmission is on, also useful to show the packets sorted by when they were sent.</span></div>
-<div class="line"><a id="l03729" name="l03729"></a><span class="lineno"> 3729</span> </div>
-<div class="line"><a id="l03730" name="l03730"></a><span class="lineno"> 3730</span>  vector&lt;string&gt; pkt_strs_time;</div>
-<div class="line"><a id="l03731" name="l03731"></a><span class="lineno"> 3731</span>  pkt_strs_time.reserve(num_flying_pkts);</div>
-<div class="line"><a id="l03732" name="l03732"></a><span class="lineno"> 3732</span>  <span class="comment">// Note I don&#39;t use `auto` only for clarity (to express it is a reverse iterator, hence why didn&#39;t use for(:)).</span></div>
-<div class="line"><a id="l03733" name="l03733"></a><span class="lineno"> 3733</span>  <span class="keywordflow">for</span> (<a class="code hl_typedef" href="classflow_1_1util_1_1Linked__hash__map.html#a10095310ddb7fe3d7cf35d957cc1c477">Peer_socket::Sent_pkt_by_sent_when_map::Const_reverse_iterator</a> pkt_it = snd_flying_pkts_by_when.const_oldest();</div>
-<div class="line"><a id="l03734" name="l03734"></a><span class="lineno"> 3734</span>       pkt_it != snd_flying_pkts_by_when.const_past_newest();</div>
-<div class="line"><a id="l03735" name="l03735"></a><span class="lineno"> 3735</span>       ++pkt_it)</div>
-<div class="line"><a id="l03736" name="l03736"></a><span class="lineno"> 3736</span>  {</div>
-<div class="line"><a id="l03737" name="l03737"></a><span class="lineno"> 3737</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> start, end;</div>
-<div class="line"><a id="l03738" name="l03738"></a><span class="lineno"> 3738</span>    <span class="comment">// The forward iterator F pointing to same list element as reverse iterator R is prior(R.base()) [sic].  Google it.</span></div>
-<div class="line"><a id="l03739" name="l03739"></a><span class="lineno"> 3739</span>    get_seq_num_range(prior(pkt_it.base()), &amp;start, &amp;end);</div>
-<div class="line"><a id="l03740" name="l03740"></a><span class="lineno"> 3740</span> </div>
-<div class="line"><a id="l03741" name="l03741"></a><span class="lineno"> 3741</span>    <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Sent_packet::Const_ptr</a> sent_pkt = pkt_it-&gt;second;</div>
-<div class="line"><a id="l03742" name="l03742"></a><span class="lineno"> 3742</span> </div>
-<div class="line"><a id="l03743" name="l03743"></a><span class="lineno"> 3743</span>    <span class="keywordtype">string</span> pkt_str;</div>
-<div class="line"><a id="l03744" name="l03744"></a><span class="lineno"> 3744</span>    <a class="code hl_function" href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">util::ostream_op_to_string</a>(&amp;pkt_str,</div>
-<div class="line"><a id="l03745" name="l03745"></a><span class="lineno"> 3745</span>                               start, <span class="charliteral">&#39;[&#39;</span>, <span class="keywordtype">int</span>(sent_pkt-&gt;m_packet-&gt;m_rexmit_id), <span class="charliteral">&#39;/&#39;</span>,</div>
-<div class="line"><a id="l03746" name="l03746"></a><span class="lineno"> 3746</span>                               sent_pkt-&gt;m_sent_when.back().m_order_num, <span class="stringliteral">&quot;], &quot;</span>, end, <span class="stringliteral">&quot;)&lt;&quot;</span>,</div>
-<div class="line"><a id="l03747" name="l03747"></a><span class="lineno"> 3747</span>                               sent_pkt-&gt;m_acks_after_me, <span class="stringliteral">&quot;acks&quot;</span>);</div>
-<div class="line"><a id="l03748" name="l03748"></a><span class="lineno"> 3748</span>    pkt_strs_time.push_back(pkt_str);</div>
-<div class="line"><a id="l03749" name="l03749"></a><span class="lineno"> 3749</span>  }</div>
-<div class="line"><a id="l03750" name="l03750"></a><span class="lineno"> 3750</span> </div>
-<div class="line"><a id="l03751" name="l03751"></a><span class="lineno"> 3751</span>  <span class="comment">// Log it only if it is different (only possible if some retransmitted packets are actually involved).</span></div>
-<div class="line"><a id="l03752" name="l03752"></a><span class="lineno"> 3752</span>  <span class="keywordflow">if</span> (pkt_strs_time != pkt_strs)</div>
-<div class="line"><a id="l03753" name="l03753"></a><span class="lineno"> 3753</span>  {</div>
-<div class="line"><a id="l03754" name="l03754"></a><span class="lineno"> 3754</span>    <a class="code hl_define" href="log_8hpp.html#a5daa2b6d16edea74bb8bddc75f7fb801">FLOW_LOG_WITHOUT_CHECKING</a></div>
-<div class="line"><a id="l03755" name="l03755"></a><span class="lineno"> 3755</span>      (force_verbose_info_logging ? <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">log::Sev::S_INFO</a> : <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">log::Sev::S_DATA</a>,</div>
-<div class="line"><a id="l03756" name="l03756"></a><span class="lineno"> 3756</span>       <span class="stringliteral">&quot;Sorted by time sent: {&quot;</span> &lt;&lt; join(pkt_strs_time, <span class="stringliteral">&quot; &quot;</span>) &lt;&lt; <span class="stringliteral">&quot;}.&quot;</span>);</div>
-<div class="line"><a id="l03757" name="l03757"></a><span class="lineno"> 3757</span>  }</div>
-<div class="line"><a id="l03758" name="l03758"></a><span class="lineno"> 3758</span>} <span class="comment">// Node::log_snd_window()</span></div>
-<div class="line"><a id="l03759" name="l03759"></a><span class="lineno"> 3759</span> </div>
-<div class="line"><a id="l03760" name="l03760"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a837d37e6eb06fb6df4666bac327d20f8"> 3760</a></span><a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a837d37e6eb06fb6df4666bac327d20f8">Node::snd_past_last_flying_datum_seq_num</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock) <span class="comment">// Static.</span></div>
-<div class="line"><a id="l03761" name="l03761"></a><span class="lineno"> 3761</span>{</div>
-<div class="line"><a id="l03762" name="l03762"></a><span class="lineno"> 3762</span>  <span class="keyword">using </span>boost::prior;</div>
-<div class="line"><a id="l03763" name="l03763"></a><span class="lineno"> 3763</span> </div>
-<div class="line"><a id="l03764" name="l03764"></a><span class="lineno"> 3764</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1958264af0c40f3c9c5769ddff4c9ade">Peer_socket::Sent_pkt_by_seq_num_map</a>&amp; flying_packets = sock-&gt;m_snd_flying_pkts_by_seq_num;</div>
-<div class="line"><a id="l03765" name="l03765"></a><span class="lineno"> 3765</span>  <span class="keywordflow">if</span> (flying_packets.empty())</div>
-<div class="line"><a id="l03766" name="l03766"></a><span class="lineno"> 3766</span>  {</div>
-<div class="line"><a id="l03767" name="l03767"></a><span class="lineno"> 3767</span>    <span class="keywordflow">return</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>(); <span class="comment">// Default value.  Less than all others.</span></div>
-<div class="line"><a id="l03768" name="l03768"></a><span class="lineno"> 3768</span>  }</div>
-<div class="line"><a id="l03769" name="l03769"></a><span class="lineno"> 3769</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l03770" name="l03770"></a><span class="lineno"> 3770</span> </div>
-<div class="line"><a id="l03771" name="l03771"></a><span class="lineno"> 3771</span>  <span class="comment">// Get the sequence number of the first datum in the last unhandled packet.</span></div>
-<div class="line"><a id="l03772" name="l03772"></a><span class="lineno"> 3772</span>  <span class="keyword">const</span> Peer_socket::Sent_pkt_by_seq_num_map::value_type&amp; highest_val = *(prior(flying_packets.end()));</div>
-<div class="line"><a id="l03773" name="l03773"></a><span class="lineno"> 3773</span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> seq_num = highest_val.first;</div>
-<div class="line"><a id="l03774" name="l03774"></a><span class="lineno"> 3774</span> </div>
-<div class="line"><a id="l03775" name="l03775"></a><span class="lineno"> 3775</span>  <span class="comment">// Advance just past the data in that packet to get what we want.</span></div>
-<div class="line"><a id="l03776" name="l03776"></a><span class="lineno"> 3776</span>  advance_seq_num(&amp;seq_num, highest_val.second-&gt;second-&gt;m_size);</div>
-<div class="line"><a id="l03777" name="l03777"></a><span class="lineno"> 3777</span> </div>
-<div class="line"><a id="l03778" name="l03778"></a><span class="lineno"> 3778</span>  <span class="keywordflow">return</span> seq_num;</div>
-<div class="line"><a id="l03779" name="l03779"></a><span class="lineno"> 3779</span>}</div>
+<div class="line"><a id="l03728" name="l03728"></a><span class="lineno"> 3728</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>)</div>
+<div class="line"><a id="l03729" name="l03729"></a><span class="lineno"> 3729</span>  {</div>
+<div class="line"><a id="l03730" name="l03730"></a><span class="lineno"> 3730</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l03731" name="l03731"></a><span class="lineno"> 3731</span>  }</div>
+<div class="line"><a id="l03732" name="l03732"></a><span class="lineno"> 3732</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l03733" name="l03733"></a><span class="lineno"> 3733</span> </div>
+<div class="line"><a id="l03734" name="l03734"></a><span class="lineno"> 3734</span>  <span class="comment">// Since retransmission is on, also useful to show the packets sorted by when they were sent.</span></div>
+<div class="line"><a id="l03735" name="l03735"></a><span class="lineno"> 3735</span> </div>
+<div class="line"><a id="l03736" name="l03736"></a><span class="lineno"> 3736</span>  vector&lt;string&gt; pkt_strs_time;</div>
+<div class="line"><a id="l03737" name="l03737"></a><span class="lineno"> 3737</span>  pkt_strs_time.reserve(num_flying_pkts);</div>
+<div class="line"><a id="l03738" name="l03738"></a><span class="lineno"> 3738</span>  <span class="comment">// Note I don&#39;t use `auto` only for clarity (to express it is a reverse iterator, hence why didn&#39;t use for(:)).</span></div>
+<div class="line"><a id="l03739" name="l03739"></a><span class="lineno"> 3739</span>  <span class="keywordflow">for</span> (<a class="code hl_typedef" href="classflow_1_1util_1_1Linked__hash__map.html#a10095310ddb7fe3d7cf35d957cc1c477">Peer_socket::Sent_pkt_by_sent_when_map::Const_reverse_iterator</a> pkt_it = snd_flying_pkts_by_when.const_oldest();</div>
+<div class="line"><a id="l03740" name="l03740"></a><span class="lineno"> 3740</span>       pkt_it != snd_flying_pkts_by_when.const_past_newest();</div>
+<div class="line"><a id="l03741" name="l03741"></a><span class="lineno"> 3741</span>       ++pkt_it)</div>
+<div class="line"><a id="l03742" name="l03742"></a><span class="lineno"> 3742</span>  {</div>
+<div class="line"><a id="l03743" name="l03743"></a><span class="lineno"> 3743</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> start, end;</div>
+<div class="line"><a id="l03744" name="l03744"></a><span class="lineno"> 3744</span>    <span class="comment">// The forward iterator F pointing to same list element as reverse iterator R is prior(R.base()) [sic].  Google it.</span></div>
+<div class="line"><a id="l03745" name="l03745"></a><span class="lineno"> 3745</span>    get_seq_num_range(prior(pkt_it.base()), &amp;start, &amp;end);</div>
+<div class="line"><a id="l03746" name="l03746"></a><span class="lineno"> 3746</span> </div>
+<div class="line"><a id="l03747" name="l03747"></a><span class="lineno"> 3747</span>    <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Sent_packet::Const_ptr</a> sent_pkt = pkt_it-&gt;second;</div>
+<div class="line"><a id="l03748" name="l03748"></a><span class="lineno"> 3748</span> </div>
+<div class="line"><a id="l03749" name="l03749"></a><span class="lineno"> 3749</span>    <span class="keywordtype">string</span> pkt_str;</div>
+<div class="line"><a id="l03750" name="l03750"></a><span class="lineno"> 3750</span>    <a class="code hl_function" href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">util::ostream_op_to_string</a>(&amp;pkt_str,</div>
+<div class="line"><a id="l03751" name="l03751"></a><span class="lineno"> 3751</span>                               start, <span class="charliteral">&#39;[&#39;</span>, <span class="keywordtype">int</span>(sent_pkt-&gt;m_packet-&gt;m_rexmit_id), <span class="charliteral">&#39;/&#39;</span>,</div>
+<div class="line"><a id="l03752" name="l03752"></a><span class="lineno"> 3752</span>                               sent_pkt-&gt;m_sent_when.back().m_order_num, <span class="stringliteral">&quot;], &quot;</span>, end, <span class="stringliteral">&quot;)&lt;&quot;</span>,</div>
+<div class="line"><a id="l03753" name="l03753"></a><span class="lineno"> 3753</span>                               sent_pkt-&gt;m_acks_after_me, <span class="stringliteral">&quot;acks&quot;</span>);</div>
+<div class="line"><a id="l03754" name="l03754"></a><span class="lineno"> 3754</span>    pkt_strs_time.push_back(pkt_str);</div>
+<div class="line"><a id="l03755" name="l03755"></a><span class="lineno"> 3755</span>  }</div>
+<div class="line"><a id="l03756" name="l03756"></a><span class="lineno"> 3756</span> </div>
+<div class="line"><a id="l03757" name="l03757"></a><span class="lineno"> 3757</span>  <span class="comment">// Log it only if it is different (only possible if some retransmitted packets are actually involved).</span></div>
+<div class="line"><a id="l03758" name="l03758"></a><span class="lineno"> 3758</span>  <span class="keywordflow">if</span> (pkt_strs_time != pkt_strs)</div>
+<div class="line"><a id="l03759" name="l03759"></a><span class="lineno"> 3759</span>  {</div>
+<div class="line"><a id="l03760" name="l03760"></a><span class="lineno"> 3760</span>    <a class="code hl_define" href="log_8hpp.html#a5daa2b6d16edea74bb8bddc75f7fb801">FLOW_LOG_WITHOUT_CHECKING</a></div>
+<div class="line"><a id="l03761" name="l03761"></a><span class="lineno"> 3761</span>      (force_verbose_info_logging ? <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04ac238793326fae17afcc849e96b96e8e7">log::Sev::S_INFO</a> : <a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">log::Sev::S_DATA</a>,</div>
+<div class="line"><a id="l03762" name="l03762"></a><span class="lineno"> 3762</span>       <span class="stringliteral">&quot;Sorted by time sent: {&quot;</span> &lt;&lt; join(pkt_strs_time, <span class="stringliteral">&quot; &quot;</span>) &lt;&lt; <span class="stringliteral">&quot;}.&quot;</span>);</div>
+<div class="line"><a id="l03763" name="l03763"></a><span class="lineno"> 3763</span>  }</div>
+<div class="line"><a id="l03764" name="l03764"></a><span class="lineno"> 3764</span>} <span class="comment">// Node::log_snd_window()</span></div>
+<div class="line"><a id="l03765" name="l03765"></a><span class="lineno"> 3765</span> </div>
+<div class="line"><a id="l03766" name="l03766"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a837d37e6eb06fb6df4666bac327d20f8"> 3766</a></span><a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a837d37e6eb06fb6df4666bac327d20f8">Node::snd_past_last_flying_datum_seq_num</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock) <span class="comment">// Static.</span></div>
+<div class="line"><a id="l03767" name="l03767"></a><span class="lineno"> 3767</span>{</div>
+<div class="line"><a id="l03768" name="l03768"></a><span class="lineno"> 3768</span>  <span class="keyword">using </span>boost::prior;</div>
+<div class="line"><a id="l03769" name="l03769"></a><span class="lineno"> 3769</span> </div>
+<div class="line"><a id="l03770" name="l03770"></a><span class="lineno"> 3770</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1958264af0c40f3c9c5769ddff4c9ade">Peer_socket::Sent_pkt_by_seq_num_map</a>&amp; flying_packets = sock-&gt;m_snd_flying_pkts_by_seq_num;</div>
+<div class="line"><a id="l03771" name="l03771"></a><span class="lineno"> 3771</span>  <span class="keywordflow">if</span> (flying_packets.empty())</div>
+<div class="line"><a id="l03772" name="l03772"></a><span class="lineno"> 3772</span>  {</div>
+<div class="line"><a id="l03773" name="l03773"></a><span class="lineno"> 3773</span>    <span class="keywordflow">return</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>(); <span class="comment">// Default value.  Less than all others.</span></div>
+<div class="line"><a id="l03774" name="l03774"></a><span class="lineno"> 3774</span>  }</div>
+<div class="line"><a id="l03775" name="l03775"></a><span class="lineno"> 3775</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l03776" name="l03776"></a><span class="lineno"> 3776</span> </div>
+<div class="line"><a id="l03777" name="l03777"></a><span class="lineno"> 3777</span>  <span class="comment">// Get the sequence number of the first datum in the last unhandled packet.</span></div>
+<div class="line"><a id="l03778" name="l03778"></a><span class="lineno"> 3778</span>  <span class="keyword">const</span> Peer_socket::Sent_pkt_by_seq_num_map::value_type&amp; highest_val = *(prior(flying_packets.end()));</div>
+<div class="line"><a id="l03779" name="l03779"></a><span class="lineno"> 3779</span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> seq_num = highest_val.first;</div>
 <div class="line"><a id="l03780" name="l03780"></a><span class="lineno"> 3780</span> </div>
-<div class="line"><a id="l03781" name="l03781"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a43af576c6156f5d69682e664d9ff3922"> 3781</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a43af576c6156f5d69682e664d9ff3922">Node::snd_flying_pkts_erase_one</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a> pkt_it)</div>
-<div class="line"><a id="l03782" name="l03782"></a><span class="lineno"> 3782</span>{</div>
-<div class="line"><a id="l03783" name="l03783"></a><span class="lineno"> 3783</span>  <span class="comment">// using boost::next; // Still ambiguous for some reason (in clang at least).</span></div>
-<div class="line"><a id="l03784" name="l03784"></a><span class="lineno"> 3784</span> </div>
-<div class="line"><a id="l03785" name="l03785"></a><span class="lineno"> 3785</span>  <span class="keyword">auto</span> <span class="keyword">const</span> logger_ptr = <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>();</div>
-<div class="line"><a id="l03786" name="l03786"></a><span class="lineno"> 3786</span>  <span class="keywordflow">if</span> (logger_ptr &amp;&amp; logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">log::Sev::S_TRACE</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>()))</div>
-<div class="line"><a id="l03787" name="l03787"></a><span class="lineno"> 3787</span>  {</div>
-<div class="line"><a id="l03788" name="l03788"></a><span class="lineno"> 3788</span>    <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">Peer_socket::Sent_packet</a>&amp; sent_pkt = *pkt_it-&gt;second;</div>
-<div class="line"><a id="l03789" name="l03789"></a><span class="lineno"> 3789</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">Peer_socket::order_num_t</a> order_num = sent_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">m_sent_when</a>.back().m_order_num;</div>
-<div class="line"><a id="l03790" name="l03790"></a><span class="lineno"> 3790</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> seq_num, seq_num_end;</div>
-<div class="line"><a id="l03791" name="l03791"></a><span class="lineno"> 3791</span>    get_seq_num_range(pkt_it, &amp;seq_num, &amp;seq_num_end);</div>
-<div class="line"><a id="l03792" name="l03792"></a><span class="lineno"> 3792</span> </div>
-<div class="line"><a id="l03793" name="l03793"></a><span class="lineno"> 3793</span>    <span class="keywordflow">if</span> (sock-&gt;rexmit_on())</div>
-<div class="line"><a id="l03794" name="l03794"></a><span class="lineno"> 3794</span>    {</div>
-<div class="line"><a id="l03795" name="l03795"></a><span class="lineno"> 3795</span>      <a class="code hl_define" href="log_8hpp.html#a6b3b2cd7ddabf90a7c6ccd104a042cc6">FLOW_LOG_TRACE_WITHOUT_CHECKING</a></div>
-<div class="line"><a id="l03796" name="l03796"></a><span class="lineno"> 3796</span>        (<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] erasing packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l03797" name="l03797"></a><span class="lineno"> 3797</span>         <span class="stringliteral">&quot;order_num [&quot;</span> &lt;&lt; order_num &lt;&lt; <span class="stringliteral">&quot;] rexmit_id [&quot;</span> &lt;&lt; <span class="keywordtype">int</span>(sent_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf">m_packet</a>-&gt;m_rexmit_id) &lt;&lt; <span class="stringliteral">&quot;] from &quot;</span></div>
-<div class="line"><a id="l03798" name="l03798"></a><span class="lineno"> 3798</span>         <span class="stringliteral">&quot;snd_flying_pkts* and friends.&quot;</span>);</div>
-<div class="line"><a id="l03799" name="l03799"></a><span class="lineno"> 3799</span>    }</div>
-<div class="line"><a id="l03800" name="l03800"></a><span class="lineno"> 3800</span>    <span class="keywordflow">else</span></div>
-<div class="line"><a id="l03801" name="l03801"></a><span class="lineno"> 3801</span>    {</div>
-<div class="line"><a id="l03802" name="l03802"></a><span class="lineno"> 3802</span>      <a class="code hl_define" href="log_8hpp.html#a6b3b2cd7ddabf90a7c6ccd104a042cc6">FLOW_LOG_TRACE_WITHOUT_CHECKING</a></div>
-<div class="line"><a id="l03803" name="l03803"></a><span class="lineno"> 3803</span>        (<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] erasing packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l03804" name="l03804"></a><span class="lineno"> 3804</span>         <span class="stringliteral">&quot;order_num [&quot;</span> &lt;&lt; order_num &lt;&lt; <span class="stringliteral">&quot;] from snd_flying_pkts* and friends.&quot;</span>);</div>
+<div class="line"><a id="l03781" name="l03781"></a><span class="lineno"> 3781</span>  <span class="comment">// Advance just past the data in that packet to get what we want.</span></div>
+<div class="line"><a id="l03782" name="l03782"></a><span class="lineno"> 3782</span>  advance_seq_num(&amp;seq_num, highest_val.second-&gt;second-&gt;m_size);</div>
+<div class="line"><a id="l03783" name="l03783"></a><span class="lineno"> 3783</span> </div>
+<div class="line"><a id="l03784" name="l03784"></a><span class="lineno"> 3784</span>  <span class="keywordflow">return</span> seq_num;</div>
+<div class="line"><a id="l03785" name="l03785"></a><span class="lineno"> 3785</span>}</div>
+<div class="line"><a id="l03786" name="l03786"></a><span class="lineno"> 3786</span> </div>
+<div class="line"><a id="l03787" name="l03787"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a43af576c6156f5d69682e664d9ff3922"> 3787</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a43af576c6156f5d69682e664d9ff3922">Node::snd_flying_pkts_erase_one</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a> pkt_it)</div>
+<div class="line"><a id="l03788" name="l03788"></a><span class="lineno"> 3788</span>{</div>
+<div class="line"><a id="l03789" name="l03789"></a><span class="lineno"> 3789</span>  <span class="comment">// using boost::next; // Still ambiguous for some reason (in clang at least).</span></div>
+<div class="line"><a id="l03790" name="l03790"></a><span class="lineno"> 3790</span> </div>
+<div class="line"><a id="l03791" name="l03791"></a><span class="lineno"> 3791</span>  <span class="keyword">auto</span> <span class="keyword">const</span> logger_ptr = <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>();</div>
+<div class="line"><a id="l03792" name="l03792"></a><span class="lineno"> 3792</span>  <span class="keywordflow">if</span> (logger_ptr &amp;&amp; logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">log::Sev::S_TRACE</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>()))</div>
+<div class="line"><a id="l03793" name="l03793"></a><span class="lineno"> 3793</span>  {</div>
+<div class="line"><a id="l03794" name="l03794"></a><span class="lineno"> 3794</span>    <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">Peer_socket::Sent_packet</a>&amp; sent_pkt = *pkt_it-&gt;second;</div>
+<div class="line"><a id="l03795" name="l03795"></a><span class="lineno"> 3795</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">Peer_socket::order_num_t</a> order_num = sent_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">m_sent_when</a>.back().m_order_num;</div>
+<div class="line"><a id="l03796" name="l03796"></a><span class="lineno"> 3796</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> seq_num, seq_num_end;</div>
+<div class="line"><a id="l03797" name="l03797"></a><span class="lineno"> 3797</span>    get_seq_num_range(pkt_it, &amp;seq_num, &amp;seq_num_end);</div>
+<div class="line"><a id="l03798" name="l03798"></a><span class="lineno"> 3798</span> </div>
+<div class="line"><a id="l03799" name="l03799"></a><span class="lineno"> 3799</span>    <span class="keywordflow">if</span> (sock-&gt;rexmit_on())</div>
+<div class="line"><a id="l03800" name="l03800"></a><span class="lineno"> 3800</span>    {</div>
+<div class="line"><a id="l03801" name="l03801"></a><span class="lineno"> 3801</span>      <a class="code hl_define" href="log_8hpp.html#a6b3b2cd7ddabf90a7c6ccd104a042cc6">FLOW_LOG_TRACE_WITHOUT_CHECKING</a></div>
+<div class="line"><a id="l03802" name="l03802"></a><span class="lineno"> 3802</span>        (<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] erasing packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l03803" name="l03803"></a><span class="lineno"> 3803</span>         <span class="stringliteral">&quot;order_num [&quot;</span> &lt;&lt; order_num &lt;&lt; <span class="stringliteral">&quot;] rexmit_id [&quot;</span> &lt;&lt; <span class="keywordtype">int</span>(sent_pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf">m_packet</a>-&gt;m_rexmit_id) &lt;&lt; <span class="stringliteral">&quot;] from &quot;</span></div>
+<div class="line"><a id="l03804" name="l03804"></a><span class="lineno"> 3804</span>         <span class="stringliteral">&quot;snd_flying_pkts* and friends.&quot;</span>);</div>
 <div class="line"><a id="l03805" name="l03805"></a><span class="lineno"> 3805</span>    }</div>
-<div class="line"><a id="l03806" name="l03806"></a><span class="lineno"> 3806</span>  }</div>
-<div class="line"><a id="l03807" name="l03807"></a><span class="lineno"> 3807</span> </div>
-<div class="line"><a id="l03808" name="l03808"></a><span class="lineno"> 3808</span>  <span class="comment">// Update byte count.</span></div>
-<div class="line"><a id="l03809" name="l03809"></a><span class="lineno"> 3809</span>  snd_flying_pkts_updated(sock, pkt_it, boost::next(pkt_it), <span class="keyword">false</span>);</div>
-<div class="line"><a id="l03810" name="l03810"></a><span class="lineno"> 3810</span> </div>
-<div class="line"><a id="l03811" name="l03811"></a><span class="lineno"> 3811</span>  <span class="comment">// Finally erase from main structures.</span></div>
-<div class="line"><a id="l03812" name="l03812"></a><span class="lineno"> 3812</span>  sock-&gt;m_snd_flying_pkts_by_seq_num.erase(pkt_it-&gt;first);</div>
-<div class="line"><a id="l03813" name="l03813"></a><span class="lineno"> 3813</span>  sock-&gt;m_snd_flying_pkts_by_sent_when.erase(pkt_it);</div>
-<div class="line"><a id="l03814" name="l03814"></a><span class="lineno"> 3814</span> </div>
-<div class="line"><a id="l03815" name="l03815"></a><span class="lineno"> 3815</span>  <span class="comment">// Note: As advertsied, we do NOT inform sock-&gt;m_snd_drop_timer.  It is up to the caller to do the right thing there.</span></div>
-<div class="line"><a id="l03816" name="l03816"></a><span class="lineno"> 3816</span>}</div>
-<div class="line"><a id="l03817" name="l03817"></a><span class="lineno"> 3817</span> </div>
-<div class="line"><a id="l03818" name="l03818"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a52a3e10ef08b93daf87ea5f0f1e87062"> 3818</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a52a3e10ef08b93daf87ea5f0f1e87062">Node::snd_flying_pkts_push_one</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
-<div class="line"><a id="l03819" name="l03819"></a><span class="lineno"> 3819</span>                                    <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num,</div>
-<div class="line"><a id="l03820" name="l03820"></a><span class="lineno"> 3820</span>                                    <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Sent_packet::Ptr</a> sent_pkt)</div>
-<div class="line"><a id="l03821" name="l03821"></a><span class="lineno"> 3821</span>{</div>
-<div class="line"><a id="l03822" name="l03822"></a><span class="lineno"> 3822</span>  <span class="keyword">using </span>std::pair;</div>
-<div class="line"><a id="l03823" name="l03823"></a><span class="lineno"> 3823</span>  <span class="keyword">using </span>std::make_pair;</div>
-<div class="line"><a id="l03824" name="l03824"></a><span class="lineno"> 3824</span>  <span class="comment">// using boost::next; // Still ambiguous for some reason (in clang at least).</span></div>
-<div class="line"><a id="l03825" name="l03825"></a><span class="lineno"> 3825</span> </div>
-<div class="line"><a id="l03826" name="l03826"></a><span class="lineno"> 3826</span>  <span class="comment">// For brevity and a bit of speed:</span></div>
-<div class="line"><a id="l03827" name="l03827"></a><span class="lineno"> 3827</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
-<div class="line"><a id="l03828" name="l03828"></a><span class="lineno"> 3828</span> </div>
-<div class="line"><a id="l03829" name="l03829"></a><span class="lineno"> 3829</span><span class="preprocessor">#ifndef NDEBUG</span></div>
-<div class="line"><a id="l03830" name="l03830"></a><span class="lineno"> 3830</span>  <span class="keyword">const</span> <span class="keyword">auto</span> insert_result =</div>
-<div class="line"><a id="l03831" name="l03831"></a><span class="lineno"> 3831</span><span class="preprocessor">#endif</span></div>
-<div class="line"><a id="l03832" name="l03832"></a><span class="lineno"> 3832</span>    snd_flying_pkts_by_when.insert(make_pair(seq_num, sent_pkt));</div>
-<div class="line"><a id="l03833" name="l03833"></a><span class="lineno"> 3833</span> </div>
-<div class="line"><a id="l03834" name="l03834"></a><span class="lineno"> 3834</span>  <span class="comment">// In this map, last added (a/k/a last sent) packet = first in the ordering!</span></div>
-<div class="line"><a id="l03835" name="l03835"></a><span class="lineno"> 3835</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a>&amp; pkt_it = snd_flying_pkts_by_when.begin();</div>
-<div class="line"><a id="l03836" name="l03836"></a><span class="lineno"> 3836</span>  assert(insert_result.second); <span class="comment">// Sequence numbers must not repeat ever.</span></div>
-<div class="line"><a id="l03837" name="l03837"></a><span class="lineno"> 3837</span>  assert(insert_result.first == pkt_it); <span class="comment">// Check that just-inserted element is ordered at the start.</span></div>
-<div class="line"><a id="l03838" name="l03838"></a><span class="lineno"> 3838</span> </div>
-<div class="line"><a id="l03839" name="l03839"></a><span class="lineno"> 3839</span>  snd_flying_pkts_updated(sock, pkt_it, boost::next(pkt_it), <span class="keyword">true</span>); <span class="comment">// Update byte count.</span></div>
-<div class="line"><a id="l03840" name="l03840"></a><span class="lineno"> 3840</span> </div>
-<div class="line"><a id="l03841" name="l03841"></a><span class="lineno"> 3841</span>  <span class="comment">// Accordingly, insert packet (in the form of iterator into the above map) into sequence-number-ordered &quot;scoreboard.&quot;</span></div>
-<div class="line"><a id="l03842" name="l03842"></a><span class="lineno"> 3842</span><span class="preprocessor">#ifndef NDEBUG</span></div>
-<div class="line"><a id="l03843" name="l03843"></a><span class="lineno"> 3843</span>  <span class="keyword">const</span> <span class="keyword">auto</span> insert_result_by_seq =</div>
-<div class="line"><a id="l03844" name="l03844"></a><span class="lineno"> 3844</span><span class="preprocessor">#endif</span></div>
-<div class="line"><a id="l03845" name="l03845"></a><span class="lineno"> 3845</span>    sock-&gt;m_snd_flying_pkts_by_seq_num.insert(make_pair(seq_num, pkt_it));</div>
+<div class="line"><a id="l03806" name="l03806"></a><span class="lineno"> 3806</span>    <span class="keywordflow">else</span></div>
+<div class="line"><a id="l03807" name="l03807"></a><span class="lineno"> 3807</span>    {</div>
+<div class="line"><a id="l03808" name="l03808"></a><span class="lineno"> 3808</span>      <a class="code hl_define" href="log_8hpp.html#a6b3b2cd7ddabf90a7c6ccd104a042cc6">FLOW_LOG_TRACE_WITHOUT_CHECKING</a></div>
+<div class="line"><a id="l03809" name="l03809"></a><span class="lineno"> 3809</span>        (<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] erasing packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l03810" name="l03810"></a><span class="lineno"> 3810</span>         <span class="stringliteral">&quot;order_num [&quot;</span> &lt;&lt; order_num &lt;&lt; <span class="stringliteral">&quot;] from snd_flying_pkts* and friends.&quot;</span>);</div>
+<div class="line"><a id="l03811" name="l03811"></a><span class="lineno"> 3811</span>    }</div>
+<div class="line"><a id="l03812" name="l03812"></a><span class="lineno"> 3812</span>  }</div>
+<div class="line"><a id="l03813" name="l03813"></a><span class="lineno"> 3813</span> </div>
+<div class="line"><a id="l03814" name="l03814"></a><span class="lineno"> 3814</span>  <span class="comment">// Update byte count.</span></div>
+<div class="line"><a id="l03815" name="l03815"></a><span class="lineno"> 3815</span>  snd_flying_pkts_updated(sock, pkt_it, boost::next(pkt_it), <span class="keyword">false</span>);</div>
+<div class="line"><a id="l03816" name="l03816"></a><span class="lineno"> 3816</span> </div>
+<div class="line"><a id="l03817" name="l03817"></a><span class="lineno"> 3817</span>  <span class="comment">// Finally erase from main structures.</span></div>
+<div class="line"><a id="l03818" name="l03818"></a><span class="lineno"> 3818</span>  sock-&gt;m_snd_flying_pkts_by_seq_num.erase(pkt_it-&gt;first);</div>
+<div class="line"><a id="l03819" name="l03819"></a><span class="lineno"> 3819</span>  sock-&gt;m_snd_flying_pkts_by_sent_when.erase(pkt_it);</div>
+<div class="line"><a id="l03820" name="l03820"></a><span class="lineno"> 3820</span> </div>
+<div class="line"><a id="l03821" name="l03821"></a><span class="lineno"> 3821</span>  <span class="comment">// Note: As advertsied, we do NOT inform sock-&gt;m_snd_drop_timer.  It is up to the caller to do the right thing there.</span></div>
+<div class="line"><a id="l03822" name="l03822"></a><span class="lineno"> 3822</span>}</div>
+<div class="line"><a id="l03823" name="l03823"></a><span class="lineno"> 3823</span> </div>
+<div class="line"><a id="l03824" name="l03824"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a52a3e10ef08b93daf87ea5f0f1e87062"> 3824</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a52a3e10ef08b93daf87ea5f0f1e87062">Node::snd_flying_pkts_push_one</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
+<div class="line"><a id="l03825" name="l03825"></a><span class="lineno"> 3825</span>                                    <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num,</div>
+<div class="line"><a id="l03826" name="l03826"></a><span class="lineno"> 3826</span>                                    <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Sent_packet::Ptr</a> sent_pkt)</div>
+<div class="line"><a id="l03827" name="l03827"></a><span class="lineno"> 3827</span>{</div>
+<div class="line"><a id="l03828" name="l03828"></a><span class="lineno"> 3828</span>  <span class="keyword">using </span>std::pair;</div>
+<div class="line"><a id="l03829" name="l03829"></a><span class="lineno"> 3829</span>  <span class="keyword">using </span>std::make_pair;</div>
+<div class="line"><a id="l03830" name="l03830"></a><span class="lineno"> 3830</span>  <span class="comment">// using boost::next; // Still ambiguous for some reason (in clang at least).</span></div>
+<div class="line"><a id="l03831" name="l03831"></a><span class="lineno"> 3831</span> </div>
+<div class="line"><a id="l03832" name="l03832"></a><span class="lineno"> 3832</span>  <span class="comment">// For brevity and a bit of speed:</span></div>
+<div class="line"><a id="l03833" name="l03833"></a><span class="lineno"> 3833</span>  <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
+<div class="line"><a id="l03834" name="l03834"></a><span class="lineno"> 3834</span> </div>
+<div class="line"><a id="l03835" name="l03835"></a><span class="lineno"> 3835</span><span class="preprocessor">#ifndef NDEBUG</span></div>
+<div class="line"><a id="l03836" name="l03836"></a><span class="lineno"> 3836</span>  <span class="keyword">const</span> <span class="keyword">auto</span> insert_result =</div>
+<div class="line"><a id="l03837" name="l03837"></a><span class="lineno"> 3837</span><span class="preprocessor">#endif</span></div>
+<div class="line"><a id="l03838" name="l03838"></a><span class="lineno"> 3838</span>    snd_flying_pkts_by_when.insert(make_pair(seq_num, sent_pkt));</div>
+<div class="line"><a id="l03839" name="l03839"></a><span class="lineno"> 3839</span> </div>
+<div class="line"><a id="l03840" name="l03840"></a><span class="lineno"> 3840</span>  <span class="comment">// In this map, last added (a/k/a last sent) packet = first in the ordering!</span></div>
+<div class="line"><a id="l03841" name="l03841"></a><span class="lineno"> 3841</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a>&amp; pkt_it = snd_flying_pkts_by_when.begin();</div>
+<div class="line"><a id="l03842" name="l03842"></a><span class="lineno"> 3842</span>  assert(insert_result.second); <span class="comment">// Sequence numbers must not repeat ever.</span></div>
+<div class="line"><a id="l03843" name="l03843"></a><span class="lineno"> 3843</span>  assert(insert_result.first == pkt_it); <span class="comment">// Check that just-inserted element is ordered at the start.</span></div>
+<div class="line"><a id="l03844" name="l03844"></a><span class="lineno"> 3844</span> </div>
+<div class="line"><a id="l03845" name="l03845"></a><span class="lineno"> 3845</span>  snd_flying_pkts_updated(sock, pkt_it, boost::next(pkt_it), <span class="keyword">true</span>); <span class="comment">// Update byte count.</span></div>
 <div class="line"><a id="l03846" name="l03846"></a><span class="lineno"> 3846</span> </div>
-<div class="line"><a id="l03847" name="l03847"></a><span class="lineno"> 3847</span>  <span class="comment">// Check invariant: Key X is in ..._by_sent_when &lt;=&gt; key X is in ..._by_seq_num.</span></div>
-<div class="line"><a id="l03848" name="l03848"></a><span class="lineno"> 3848</span>  assert(insert_result_by_seq.second);</div>
-<div class="line"><a id="l03849" name="l03849"></a><span class="lineno"> 3849</span> </div>
-<div class="line"><a id="l03850" name="l03850"></a><span class="lineno"> 3850</span>  <span class="comment">/* Caution: As noted in the doc header for this method, note that while we&#39;ve already inserted sent_pkt into</span></div>
-<div class="line"><a id="l03851" name="l03851"></a><span class="lineno"> 3851</span><span class="comment">   * snd_flying_pkts_by_when, the actual value of sent_pkt-&gt;m_sent_when.back() -- the absolute &quot;when&quot; -- isn&#39;t ready.</span></div>
-<div class="line"><a id="l03852" name="l03852"></a><span class="lineno"> 3852</span><span class="comment">   * It will only be finalized once we actually send off the packet (after pacing, if any), in mark_data_packet_sent().</span></div>
-<div class="line"><a id="l03853" name="l03853"></a><span class="lineno"> 3853</span><span class="comment">   * Nevertheless, we know the packet will be sent sometime fairly soon; and in fact AFTER all the packets</span></div>
-<div class="line"><a id="l03854" name="l03854"></a><span class="lineno"> 3854</span><span class="comment">   * following it it in snd_flying_pkts_by_when&#39;s iterator ordering and in fact BEFORE any packets that</span></div>
-<div class="line"><a id="l03855" name="l03855"></a><span class="lineno"> 3855</span><span class="comment">   * would be subsequently ahead of it in snd_flying_pkts_by_when&#39;s iterator ordering.  That is, we can</span></div>
-<div class="line"><a id="l03856" name="l03856"></a><span class="lineno"> 3856</span><span class="comment">   * place it there now, despite not knowing the _absolute_ time when it be sent, because we are confident about</span></div>
-<div class="line"><a id="l03857" name="l03857"></a><span class="lineno"> 3857</span><span class="comment">   * its _relative_ order of when it will be sent vs. all the other packets in that structure, past or future. */</span></div>
-<div class="line"><a id="l03858" name="l03858"></a><span class="lineno"> 3858</span> </div>
-<div class="line"><a id="l03859" name="l03859"></a><span class="lineno"> 3859</span>  <span class="comment">// Everything following this point is logging only.</span></div>
-<div class="line"><a id="l03860" name="l03860"></a><span class="lineno"> 3860</span> </div>
-<div class="line"><a id="l03861" name="l03861"></a><span class="lineno"> 3861</span>  <span class="keyword">auto</span> <span class="keyword">const</span> logger_ptr = <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>();</div>
-<div class="line"><a id="l03862" name="l03862"></a><span class="lineno"> 3862</span>  <span class="keywordflow">if</span> ((!logger_ptr) || (!logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">log::Sev::S_TRACE</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>())))</div>
-<div class="line"><a id="l03863" name="l03863"></a><span class="lineno"> 3863</span>  {</div>
-<div class="line"><a id="l03864" name="l03864"></a><span class="lineno"> 3864</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l03865" name="l03865"></a><span class="lineno"> 3865</span>  }</div>
-<div class="line"><a id="l03866" name="l03866"></a><span class="lineno"> 3866</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l03867" name="l03867"></a><span class="lineno"> 3867</span> </div>
-<div class="line"><a id="l03868" name="l03868"></a><span class="lineno"> 3868</span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> seq_num_end;</div>
-<div class="line"><a id="l03869" name="l03869"></a><span class="lineno"> 3869</span>  get_seq_num_range(pkt_it, 0, &amp;seq_num_end);</div>
-<div class="line"><a id="l03870" name="l03870"></a><span class="lineno"> 3870</span>  <span class="keywordflow">if</span> (sock-&gt;rexmit_on())</div>
-<div class="line"><a id="l03871" name="l03871"></a><span class="lineno"> 3871</span>  {</div>
-<div class="line"><a id="l03872" name="l03872"></a><span class="lineno"> 3872</span>    <a class="code hl_define" href="log_8hpp.html#a6b3b2cd7ddabf90a7c6ccd104a042cc6">FLOW_LOG_TRACE_WITHOUT_CHECKING</a></div>
-<div class="line"><a id="l03873" name="l03873"></a><span class="lineno"> 3873</span>      (<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] pushing packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l03874" name="l03874"></a><span class="lineno"> 3874</span>       <span class="stringliteral">&quot;rexmit_id [&quot;</span> &lt;&lt; <span class="keywordtype">int</span>(sent_pkt-&gt;m_packet-&gt;m_rexmit_id) &lt;&lt; <span class="stringliteral">&quot;] onto snd_flying_pkts and friends.&quot;</span>);</div>
-<div class="line"><a id="l03875" name="l03875"></a><span class="lineno"> 3875</span>  }</div>
-<div class="line"><a id="l03876" name="l03876"></a><span class="lineno"> 3876</span>  <span class="keywordflow">else</span></div>
+<div class="line"><a id="l03847" name="l03847"></a><span class="lineno"> 3847</span>  <span class="comment">// Accordingly, insert packet (in the form of iterator into the above map) into sequence-number-ordered &quot;scoreboard.&quot;</span></div>
+<div class="line"><a id="l03848" name="l03848"></a><span class="lineno"> 3848</span><span class="preprocessor">#ifndef NDEBUG</span></div>
+<div class="line"><a id="l03849" name="l03849"></a><span class="lineno"> 3849</span>  <span class="keyword">const</span> <span class="keyword">auto</span> insert_result_by_seq =</div>
+<div class="line"><a id="l03850" name="l03850"></a><span class="lineno"> 3850</span><span class="preprocessor">#endif</span></div>
+<div class="line"><a id="l03851" name="l03851"></a><span class="lineno"> 3851</span>    sock-&gt;m_snd_flying_pkts_by_seq_num.insert(make_pair(seq_num, pkt_it));</div>
+<div class="line"><a id="l03852" name="l03852"></a><span class="lineno"> 3852</span> </div>
+<div class="line"><a id="l03853" name="l03853"></a><span class="lineno"> 3853</span>  <span class="comment">// Check invariant: Key X is in ..._by_sent_when &lt;=&gt; key X is in ..._by_seq_num.</span></div>
+<div class="line"><a id="l03854" name="l03854"></a><span class="lineno"> 3854</span>  assert(insert_result_by_seq.second);</div>
+<div class="line"><a id="l03855" name="l03855"></a><span class="lineno"> 3855</span> </div>
+<div class="line"><a id="l03856" name="l03856"></a><span class="lineno"> 3856</span>  <span class="comment">/* Caution: As noted in the doc header for this method, note that while we&#39;ve already inserted sent_pkt into</span></div>
+<div class="line"><a id="l03857" name="l03857"></a><span class="lineno"> 3857</span><span class="comment">   * snd_flying_pkts_by_when, the actual value of sent_pkt-&gt;m_sent_when.back() -- the absolute &quot;when&quot; -- isn&#39;t ready.</span></div>
+<div class="line"><a id="l03858" name="l03858"></a><span class="lineno"> 3858</span><span class="comment">   * It will only be finalized once we actually send off the packet (after pacing, if any), in mark_data_packet_sent().</span></div>
+<div class="line"><a id="l03859" name="l03859"></a><span class="lineno"> 3859</span><span class="comment">   * Nevertheless, we know the packet will be sent sometime fairly soon; and in fact AFTER all the packets</span></div>
+<div class="line"><a id="l03860" name="l03860"></a><span class="lineno"> 3860</span><span class="comment">   * following it it in snd_flying_pkts_by_when&#39;s iterator ordering and in fact BEFORE any packets that</span></div>
+<div class="line"><a id="l03861" name="l03861"></a><span class="lineno"> 3861</span><span class="comment">   * would be subsequently ahead of it in snd_flying_pkts_by_when&#39;s iterator ordering.  That is, we can</span></div>
+<div class="line"><a id="l03862" name="l03862"></a><span class="lineno"> 3862</span><span class="comment">   * place it there now, despite not knowing the _absolute_ time when it be sent, because we are confident about</span></div>
+<div class="line"><a id="l03863" name="l03863"></a><span class="lineno"> 3863</span><span class="comment">   * its _relative_ order of when it will be sent vs. all the other packets in that structure, past or future. */</span></div>
+<div class="line"><a id="l03864" name="l03864"></a><span class="lineno"> 3864</span> </div>
+<div class="line"><a id="l03865" name="l03865"></a><span class="lineno"> 3865</span>  <span class="comment">// Everything following this point is logging only.</span></div>
+<div class="line"><a id="l03866" name="l03866"></a><span class="lineno"> 3866</span> </div>
+<div class="line"><a id="l03867" name="l03867"></a><span class="lineno"> 3867</span>  <span class="keyword">auto</span> <span class="keyword">const</span> logger_ptr = <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>();</div>
+<div class="line"><a id="l03868" name="l03868"></a><span class="lineno"> 3868</span>  <span class="keywordflow">if</span> ((!logger_ptr) || (!logger_ptr-&gt;should_log(<a class="code hl_enumvalue" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">log::Sev::S_TRACE</a>, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">get_log_component</a>())))</div>
+<div class="line"><a id="l03869" name="l03869"></a><span class="lineno"> 3869</span>  {</div>
+<div class="line"><a id="l03870" name="l03870"></a><span class="lineno"> 3870</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l03871" name="l03871"></a><span class="lineno"> 3871</span>  }</div>
+<div class="line"><a id="l03872" name="l03872"></a><span class="lineno"> 3872</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l03873" name="l03873"></a><span class="lineno"> 3873</span> </div>
+<div class="line"><a id="l03874" name="l03874"></a><span class="lineno"> 3874</span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> seq_num_end;</div>
+<div class="line"><a id="l03875" name="l03875"></a><span class="lineno"> 3875</span>  get_seq_num_range(pkt_it, 0, &amp;seq_num_end);</div>
+<div class="line"><a id="l03876" name="l03876"></a><span class="lineno"> 3876</span>  <span class="keywordflow">if</span> (sock-&gt;rexmit_on())</div>
 <div class="line"><a id="l03877" name="l03877"></a><span class="lineno"> 3877</span>  {</div>
 <div class="line"><a id="l03878" name="l03878"></a><span class="lineno"> 3878</span>    <a class="code hl_define" href="log_8hpp.html#a6b3b2cd7ddabf90a7c6ccd104a042cc6">FLOW_LOG_TRACE_WITHOUT_CHECKING</a></div>
 <div class="line"><a id="l03879" name="l03879"></a><span class="lineno"> 3879</span>      (<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] pushing packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
-<div class="line"><a id="l03880" name="l03880"></a><span class="lineno"> 3880</span>       <span class="stringliteral">&quot;onto snd_flying_pkts and friends.&quot;</span>);</div>
+<div class="line"><a id="l03880" name="l03880"></a><span class="lineno"> 3880</span>       <span class="stringliteral">&quot;rexmit_id [&quot;</span> &lt;&lt; <span class="keywordtype">int</span>(sent_pkt-&gt;m_packet-&gt;m_rexmit_id) &lt;&lt; <span class="stringliteral">&quot;] onto snd_flying_pkts and friends.&quot;</span>);</div>
 <div class="line"><a id="l03881" name="l03881"></a><span class="lineno"> 3881</span>  }</div>
-<div class="line"><a id="l03882" name="l03882"></a><span class="lineno"> 3882</span>}</div>
-<div class="line"><a id="l03883" name="l03883"></a><span class="lineno"> 3883</span> </div>
-<div class="line"><a id="l03884" name="l03884"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a00124a034c8fdac6f300900bdfcc8cfe"> 3884</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a00124a034c8fdac6f300900bdfcc8cfe">Node::snd_flying_pkts_updated</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
-<div class="line"><a id="l03885" name="l03885"></a><span class="lineno"> 3885</span>                                   <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">Peer_socket::Sent_pkt_ordered_by_when_const_iter</a> pkt_begin,</div>
-<div class="line"><a id="l03886" name="l03886"></a><span class="lineno"> 3886</span>                                   <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">Peer_socket::Sent_pkt_ordered_by_when_const_iter</a>&amp; pkt_end,</div>
-<div class="line"><a id="l03887" name="l03887"></a><span class="lineno"> 3887</span>                                   <span class="keywordtype">bool</span> added)</div>
-<div class="line"><a id="l03888" name="l03888"></a><span class="lineno"> 3888</span>{</div>
-<div class="line"><a id="l03889" name="l03889"></a><span class="lineno"> 3889</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l03890" name="l03890"></a><span class="lineno"> 3890</span> </div>
-<div class="line"><a id="l03891" name="l03891"></a><span class="lineno"> 3891</span>  <span class="keywordflow">if</span> (pkt_begin == pkt_end)</div>
-<div class="line"><a id="l03892" name="l03892"></a><span class="lineno"> 3892</span>  {</div>
-<div class="line"><a id="l03893" name="l03893"></a><span class="lineno"> 3893</span>    <span class="keywordflow">return</span>; <span class="comment">// Wouldn&#39;t do anything anyway, but return here to avoid logging.</span></div>
-<div class="line"><a id="l03894" name="l03894"></a><span class="lineno"> 3894</span>  }</div>
-<div class="line"><a id="l03895" name="l03895"></a><span class="lineno"> 3895</span> </div>
-<div class="line"><a id="l03896" name="l03896"></a><span class="lineno"> 3896</span>  <span class="comment">// For brevity and a bit of speed:</span></div>
-<div class="line"><a id="l03897" name="l03897"></a><span class="lineno"> 3897</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
-<div class="line"><a id="l03898" name="l03898"></a><span class="lineno"> 3898</span>  <span class="keywordtype">size_t</span>&amp; snd_flying_bytes = sock-&gt;m_snd_flying_bytes;</div>
-<div class="line"><a id="l03899" name="l03899"></a><span class="lineno"> 3899</span> </div>
-<div class="line"><a id="l03900" name="l03900"></a><span class="lineno"> 3900</span>  <span class="comment">// Optimization for when they effectively clear() snd_flying_pkts* (e.g., possibly on Drop Timeout):</span></div>
-<div class="line"><a id="l03901" name="l03901"></a><span class="lineno"> 3901</span>  <span class="keywordflow">if</span> ((!added)</div>
-<div class="line"><a id="l03902" name="l03902"></a><span class="lineno"> 3902</span>      &amp;&amp; (pkt_begin == snd_flying_pkts_by_when.const_newest())</div>
-<div class="line"><a id="l03903" name="l03903"></a><span class="lineno"> 3903</span>      &amp;&amp; (pkt_end == snd_flying_pkts_by_when.const_past_oldest()))</div>
-<div class="line"><a id="l03904" name="l03904"></a><span class="lineno"> 3904</span>  {</div>
-<div class="line"><a id="l03905" name="l03905"></a><span class="lineno"> 3905</span>    snd_flying_bytes = 0;</div>
-<div class="line"><a id="l03906" name="l03906"></a><span class="lineno"> 3906</span>  }</div>
-<div class="line"><a id="l03907" name="l03907"></a><span class="lineno"> 3907</span>  <span class="keywordflow">else</span></div>
-<div class="line"><a id="l03908" name="l03908"></a><span class="lineno"> 3908</span>  {</div>
-<div class="line"><a id="l03909" name="l03909"></a><span class="lineno"> 3909</span>    <span class="keywordtype">size_t</span> delta_bytes = 0;</div>
-<div class="line"><a id="l03910" name="l03910"></a><span class="lineno"> 3910</span>    <span class="keywordflow">for</span> ( ; pkt_begin != pkt_end; ++pkt_begin)</div>
-<div class="line"><a id="l03911" name="l03911"></a><span class="lineno"> 3911</span>    {</div>
-<div class="line"><a id="l03912" name="l03912"></a><span class="lineno"> 3912</span>      delta_bytes += pkt_begin-&gt;second-&gt;m_size;</div>
-<div class="line"><a id="l03913" name="l03913"></a><span class="lineno"> 3913</span>    }</div>
-<div class="line"><a id="l03914" name="l03914"></a><span class="lineno"> 3914</span>    added ? (snd_flying_bytes += delta_bytes) : (snd_flying_bytes -= delta_bytes);</div>
-<div class="line"><a id="l03915" name="l03915"></a><span class="lineno"> 3915</span>  }</div>
-<div class="line"><a id="l03916" name="l03916"></a><span class="lineno"> 3916</span> </div>
-<div class="line"><a id="l03917" name="l03917"></a><span class="lineno"> 3917</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;cong_ctl [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] update: &quot;</span></div>
-<div class="line"><a id="l03918" name="l03918"></a><span class="lineno"> 3918</span>                 <span class="stringliteral">&quot;In-flight [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(snd_flying_bytes) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l03919" name="l03919"></a><span class="lineno"> 3919</span>}</div>
-<div class="line"><a id="l03920" name="l03920"></a><span class="lineno"> 3920</span> </div>
-<div class="line"><a id="l03921" name="l03921"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#af39d69abde4efa88d5d40e1c529c1a25"> 3921</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#af39d69abde4efa88d5d40e1c529c1a25">Node::ok_to_rexmit_or_close</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
-<div class="line"><a id="l03922" name="l03922"></a><span class="lineno"> 3922</span>                                 <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a>&amp; pkt_it,</div>
-<div class="line"><a id="l03923" name="l03923"></a><span class="lineno"> 3923</span>                                 <span class="keywordtype">bool</span> defer_delta_check)</div>
-<div class="line"><a id="l03924" name="l03924"></a><span class="lineno"> 3924</span>{</div>
-<div class="line"><a id="l03925" name="l03925"></a><span class="lineno"> 3925</span>  <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">Peer_socket::Sent_packet</a>&amp; pkt = *pkt_it-&gt;second;</div>
+<div class="line"><a id="l03882" name="l03882"></a><span class="lineno"> 3882</span>  <span class="keywordflow">else</span></div>
+<div class="line"><a id="l03883" name="l03883"></a><span class="lineno"> 3883</span>  {</div>
+<div class="line"><a id="l03884" name="l03884"></a><span class="lineno"> 3884</span>    <a class="code hl_define" href="log_8hpp.html#a6b3b2cd7ddabf90a7c6ccd104a042cc6">FLOW_LOG_TRACE_WITHOUT_CHECKING</a></div>
+<div class="line"><a id="l03885" name="l03885"></a><span class="lineno"> 3885</span>      (<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] pushing packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;) &quot;</span></div>
+<div class="line"><a id="l03886" name="l03886"></a><span class="lineno"> 3886</span>       <span class="stringliteral">&quot;onto snd_flying_pkts and friends.&quot;</span>);</div>
+<div class="line"><a id="l03887" name="l03887"></a><span class="lineno"> 3887</span>  }</div>
+<div class="line"><a id="l03888" name="l03888"></a><span class="lineno"> 3888</span>}</div>
+<div class="line"><a id="l03889" name="l03889"></a><span class="lineno"> 3889</span> </div>
+<div class="line"><a id="l03890" name="l03890"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a00124a034c8fdac6f300900bdfcc8cfe"> 3890</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a00124a034c8fdac6f300900bdfcc8cfe">Node::snd_flying_pkts_updated</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
+<div class="line"><a id="l03891" name="l03891"></a><span class="lineno"> 3891</span>                                   <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">Peer_socket::Sent_pkt_ordered_by_when_const_iter</a> pkt_begin,</div>
+<div class="line"><a id="l03892" name="l03892"></a><span class="lineno"> 3892</span>                                   <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">Peer_socket::Sent_pkt_ordered_by_when_const_iter</a>&amp; pkt_end,</div>
+<div class="line"><a id="l03893" name="l03893"></a><span class="lineno"> 3893</span>                                   <span class="keywordtype">bool</span> added)</div>
+<div class="line"><a id="l03894" name="l03894"></a><span class="lineno"> 3894</span>{</div>
+<div class="line"><a id="l03895" name="l03895"></a><span class="lineno"> 3895</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l03896" name="l03896"></a><span class="lineno"> 3896</span> </div>
+<div class="line"><a id="l03897" name="l03897"></a><span class="lineno"> 3897</span>  <span class="keywordflow">if</span> (pkt_begin == pkt_end)</div>
+<div class="line"><a id="l03898" name="l03898"></a><span class="lineno"> 3898</span>  {</div>
+<div class="line"><a id="l03899" name="l03899"></a><span class="lineno"> 3899</span>    <span class="keywordflow">return</span>; <span class="comment">// Wouldn&#39;t do anything anyway, but return here to avoid logging.</span></div>
+<div class="line"><a id="l03900" name="l03900"></a><span class="lineno"> 3900</span>  }</div>
+<div class="line"><a id="l03901" name="l03901"></a><span class="lineno"> 3901</span> </div>
+<div class="line"><a id="l03902" name="l03902"></a><span class="lineno"> 3902</span>  <span class="comment">// For brevity and a bit of speed:</span></div>
+<div class="line"><a id="l03903" name="l03903"></a><span class="lineno"> 3903</span>  <span class="keyword">const</span> <span class="keyword">auto</span>&amp; snd_flying_pkts_by_when = sock-&gt;m_snd_flying_pkts_by_sent_when;</div>
+<div class="line"><a id="l03904" name="l03904"></a><span class="lineno"> 3904</span>  <span class="keywordtype">size_t</span>&amp; snd_flying_bytes = sock-&gt;m_snd_flying_bytes;</div>
+<div class="line"><a id="l03905" name="l03905"></a><span class="lineno"> 3905</span> </div>
+<div class="line"><a id="l03906" name="l03906"></a><span class="lineno"> 3906</span>  <span class="comment">// Optimization for when they effectively clear() snd_flying_pkts* (e.g., possibly on Drop Timeout):</span></div>
+<div class="line"><a id="l03907" name="l03907"></a><span class="lineno"> 3907</span>  <span class="keywordflow">if</span> ((!added)</div>
+<div class="line"><a id="l03908" name="l03908"></a><span class="lineno"> 3908</span>      &amp;&amp; (pkt_begin == snd_flying_pkts_by_when.const_newest())</div>
+<div class="line"><a id="l03909" name="l03909"></a><span class="lineno"> 3909</span>      &amp;&amp; (pkt_end == snd_flying_pkts_by_when.const_past_oldest()))</div>
+<div class="line"><a id="l03910" name="l03910"></a><span class="lineno"> 3910</span>  {</div>
+<div class="line"><a id="l03911" name="l03911"></a><span class="lineno"> 3911</span>    snd_flying_bytes = 0;</div>
+<div class="line"><a id="l03912" name="l03912"></a><span class="lineno"> 3912</span>  }</div>
+<div class="line"><a id="l03913" name="l03913"></a><span class="lineno"> 3913</span>  <span class="keywordflow">else</span></div>
+<div class="line"><a id="l03914" name="l03914"></a><span class="lineno"> 3914</span>  {</div>
+<div class="line"><a id="l03915" name="l03915"></a><span class="lineno"> 3915</span>    <span class="keywordtype">size_t</span> delta_bytes = 0;</div>
+<div class="line"><a id="l03916" name="l03916"></a><span class="lineno"> 3916</span>    <span class="keywordflow">for</span> ( ; pkt_begin != pkt_end; ++pkt_begin)</div>
+<div class="line"><a id="l03917" name="l03917"></a><span class="lineno"> 3917</span>    {</div>
+<div class="line"><a id="l03918" name="l03918"></a><span class="lineno"> 3918</span>      delta_bytes += pkt_begin-&gt;second-&gt;m_size;</div>
+<div class="line"><a id="l03919" name="l03919"></a><span class="lineno"> 3919</span>    }</div>
+<div class="line"><a id="l03920" name="l03920"></a><span class="lineno"> 3920</span>    added ? (snd_flying_bytes += delta_bytes) : (snd_flying_bytes -= delta_bytes);</div>
+<div class="line"><a id="l03921" name="l03921"></a><span class="lineno"> 3921</span>  }</div>
+<div class="line"><a id="l03922" name="l03922"></a><span class="lineno"> 3922</span> </div>
+<div class="line"><a id="l03923" name="l03923"></a><span class="lineno"> 3923</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;cong_ctl [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] update: &quot;</span></div>
+<div class="line"><a id="l03924" name="l03924"></a><span class="lineno"> 3924</span>                 <span class="stringliteral">&quot;In-flight [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(snd_flying_bytes) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l03925" name="l03925"></a><span class="lineno"> 3925</span>}</div>
 <div class="line"><a id="l03926" name="l03926"></a><span class="lineno"> 3926</span> </div>
-<div class="line"><a id="l03927" name="l03927"></a><span class="lineno"> 3927</span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> seq_num, seq_num_end;</div>
-<div class="line"><a id="l03928" name="l03928"></a><span class="lineno"> 3928</span>  get_seq_num_range(pkt_it, &amp;seq_num, &amp;seq_num_end);</div>
-<div class="line"><a id="l03929" name="l03929"></a><span class="lineno"> 3929</span> </div>
-<div class="line"><a id="l03930" name="l03930"></a><span class="lineno"> 3930</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rexmit_id = pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf">m_packet</a>-&gt;m_rexmit_id;</div>
-<div class="line"><a id="l03931" name="l03931"></a><span class="lineno"> 3931</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] attempting to queue for retransmission &quot;</span></div>
-<div class="line"><a id="l03932" name="l03932"></a><span class="lineno"> 3932</span>                 <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;] which has been &quot;</span></div>
-<div class="line"><a id="l03933" name="l03933"></a><span class="lineno"> 3933</span>                 <span class="stringliteral">&quot;retransmitted [&quot;</span> &lt;&lt; rexmit_id &lt;&lt; <span class="stringliteral">&quot;] times so far.&quot;</span>);</div>
-<div class="line"><a id="l03934" name="l03934"></a><span class="lineno"> 3934</span>  <span class="keywordflow">if</span> (rexmit_id == sock-&gt;opt(sock-&gt;m_opts.m_st_max_rexmissions_per_packet))</div>
-<div class="line"><a id="l03935" name="l03935"></a><span class="lineno"> 3935</span>  {</div>
-<div class="line"><a id="l03936" name="l03936"></a><span class="lineno"> 3936</span>    rst_and_close_connection_immediately(socket_id(sock), sock,</div>
-<div class="line"><a id="l03937" name="l03937"></a><span class="lineno"> 3937</span>                                         <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a3c1dc923491f5e20763fc27d025665d4">error::Code::S_CONN_RESET_TOO_MANY_REXMITS</a>, defer_delta_check);</div>
-<div class="line"><a id="l03938" name="l03938"></a><span class="lineno"> 3938</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
-<div class="line"><a id="l03939" name="l03939"></a><span class="lineno"> 3939</span>  }</div>
-<div class="line"><a id="l03940" name="l03940"></a><span class="lineno"> 3940</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l03941" name="l03941"></a><span class="lineno"> 3941</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
-<div class="line"><a id="l03942" name="l03942"></a><span class="lineno"> 3942</span>}</div>
-<div class="line"><a id="l03943" name="l03943"></a><span class="lineno"> 3943</span> </div>
-<div class="line"><a id="l03944" name="l03944"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a893c8393930110e2aa0823583e37cabd"> 3944</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a893c8393930110e2aa0823583e37cabd">Node::connect</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; to, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code,</div>
-<div class="line"><a id="l03945" name="l03945"></a><span class="lineno"> 3945</span>                               <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* opts)</div>
-<div class="line"><a id="l03946" name="l03946"></a><span class="lineno"> 3946</span>{</div>
-<div class="line"><a id="l03947" name="l03947"></a><span class="lineno"> 3947</span>  <span class="keywordflow">return</span> connect_with_metadata(to, boost::asio::buffer(&amp;S_DEFAULT_CONN_METADATA, <span class="keyword">sizeof</span>(S_DEFAULT_CONN_METADATA)),</div>
-<div class="line"><a id="l03948" name="l03948"></a><span class="lineno"> 3948</span>                               err_code, opts);</div>
-<div class="line"><a id="l03949" name="l03949"></a><span class="lineno"> 3949</span>}</div>
-<div class="line"><a id="l03950" name="l03950"></a><span class="lineno"> 3950</span> </div>
-<div class="line"><a id="l03951" name="l03951"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ae9a0e5492b9ea005cc12c20c8e7cec9a"> 3951</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ae9a0e5492b9ea005cc12c20c8e7cec9a">Node::connect_with_metadata</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; to,</div>
-<div class="line"><a id="l03952" name="l03952"></a><span class="lineno"> 3952</span>                                             <span class="keyword">const</span> boost::asio::const_buffer&amp; serialized_metadata,</div>
-<div class="line"><a id="l03953" name="l03953"></a><span class="lineno"> 3953</span>                                             <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code,</div>
-<div class="line"><a id="l03954" name="l03954"></a><span class="lineno"> 3954</span>                                             <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* sock_opts)</div>
-<div class="line"><a id="l03955" name="l03955"></a><span class="lineno"> 3955</span>{</div>
-<div class="line"><a id="l03956" name="l03956"></a><span class="lineno"> 3956</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
-<div class="line"><a id="l03957" name="l03957"></a><span class="lineno"> 3957</span>  <a class="code hl_define" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>, <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ae9a0e5492b9ea005cc12c20c8e7cec9a">Node::connect_with_metadata</a>,</div>
-<div class="line"><a id="l03958" name="l03958"></a><span class="lineno"> 3958</span>                                     bind_ns::cref(to), bind_ns::cref(serialized_metadata), _1, sock_opts);</div>
-<div class="line"><a id="l03959" name="l03959"></a><span class="lineno"> 3959</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
-<div class="line"><a id="l03960" name="l03960"></a><span class="lineno"> 3960</span> </div>
-<div class="line"><a id="l03961" name="l03961"></a><span class="lineno"> 3961</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
-<div class="line"><a id="l03962" name="l03962"></a><span class="lineno"> 3962</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1async.html#a24567271e97a67d3cae6bd8bf8dc63c4">async::asio_exec_ctx_post</a>;</div>
-<div class="line"><a id="l03963" name="l03963"></a><span class="lineno"> 3963</span>  <span class="keyword">using </span><a class="code hl_enumeration" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485">async::Synchronicity</a>;</div>
-<div class="line"><a id="l03964" name="l03964"></a><span class="lineno"> 3964</span>  <span class="keyword">using </span>bind_ns::bind;</div>
-<div class="line"><a id="l03965" name="l03965"></a><span class="lineno"> 3965</span> </div>
-<div class="line"><a id="l03966" name="l03966"></a><span class="lineno"> 3966</span>  <span class="comment">// We are in thread U != W.</span></div>
-<div class="line"><a id="l03967" name="l03967"></a><span class="lineno"> 3967</span> </div>
-<div class="line"><a id="l03968" name="l03968"></a><span class="lineno"> 3968</span>  <span class="keywordflow">if</span> (!running())</div>
-<div class="line"><a id="l03969" name="l03969"></a><span class="lineno"> 3969</span>  {</div>
-<div class="line"><a id="l03970" name="l03970"></a><span class="lineno"> 3970</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>);</div>
-<div class="line"><a id="l03971" name="l03971"></a><span class="lineno"> 3971</span>    <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>();</div>
-<div class="line"><a id="l03972" name="l03972"></a><span class="lineno"> 3972</span>  }</div>
-<div class="line"><a id="l03973" name="l03973"></a><span class="lineno"> 3973</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l03974" name="l03974"></a><span class="lineno"> 3974</span> </div>
-<div class="line"><a id="l03975" name="l03975"></a><span class="lineno"> 3975</span>  <span class="comment">// If it&#39;s good enough for DATA packets, it&#39;s good enough for metadata in SYN.</span></div>
-<div class="line"><a id="l03976" name="l03976"></a><span class="lineno"> 3976</span>  <span class="keywordflow">if</span> (serialized_metadata.size() &gt; <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#aa1f821dde38a7aa572651730744edbd8">max_block_size</a>())</div>
-<div class="line"><a id="l03977" name="l03977"></a><span class="lineno"> 3977</span>  {</div>
-<div class="line"><a id="l03978" name="l03978"></a><span class="lineno"> 3978</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a9a2cbc62120ca52c1f7e695b56b2bdcd">error::Code::S_CONN_METADATA_TOO_LARGE</a>);</div>
-<div class="line"><a id="l03979" name="l03979"></a><span class="lineno"> 3979</span>    <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>();</div>
-<div class="line"><a id="l03980" name="l03980"></a><span class="lineno"> 3980</span>  }</div>
-<div class="line"><a id="l03981" name="l03981"></a><span class="lineno"> 3981</span> </div>
-<div class="line"><a id="l03982" name="l03982"></a><span class="lineno"> 3982</span>  <span class="comment">/* Put the rest of the work into thread W.  For justification, see big comment in listen().</span></div>
-<div class="line"><a id="l03983" name="l03983"></a><span class="lineno"> 3983</span><span class="comment">   * Addendum regarding performance: connect() is probably called more frequently than listen(), but</span></div>
-<div class="line"><a id="l03984" name="l03984"></a><span class="lineno"> 3984</span><span class="comment">   * I doubt the performance impact is serious even so.  send() and receive() might be a different</span></div>
-<div class="line"><a id="l03985" name="l03985"></a><span class="lineno"> 3985</span><span class="comment">   * story. */</span></div>
-<div class="line"><a id="l03986" name="l03986"></a><span class="lineno"> 3986</span> </div>
-<div class="line"><a id="l03987" name="l03987"></a><span class="lineno"> 3987</span>  <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock;</div>
-<div class="line"><a id="l03988" name="l03988"></a><span class="lineno"> 3988</span>  <span class="comment">/* Load this-&gt;connect_worker(...) onto thread W boost.asio work queue.</span></div>
-<div class="line"><a id="l03989" name="l03989"></a><span class="lineno"> 3989</span><span class="comment">   * We don&#39;t return until it finishes; therefore it is fine to do total &amp; capture. */</span></div>
-<div class="line"><a id="l03990" name="l03990"></a><span class="lineno"> 3990</span>  <a class="code hl_function" href="namespaceflow_1_1async.html#a24567271e97a67d3cae6bd8bf8dc63c4">asio_exec_ctx_post</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), &amp;m_task_engine, Synchronicity::S_ASYNC_AND_AWAIT_CONCURRENT_COMPLETION,</div>
-<div class="line"><a id="l03991" name="l03991"></a><span class="lineno"> 3991</span>                     [&amp;]() { connect_worker(to, serialized_metadata, sock_opts, &amp;sock); });</div>
-<div class="line"><a id="l03992" name="l03992"></a><span class="lineno"> 3992</span>  <span class="comment">// If got here, the task has completed in thread W and signaled us to that effect.</span></div>
-<div class="line"><a id="l03993" name="l03993"></a><span class="lineno"> 3993</span> </div>
-<div class="line"><a id="l03994" name="l03994"></a><span class="lineno"> 3994</span>  <span class="comment">// connect_worker() indicates success or failure through this data member.</span></div>
-<div class="line"><a id="l03995" name="l03995"></a><span class="lineno"> 3995</span>  <span class="keywordflow">if</span> (sock-&gt;m_disconnect_cause)</div>
-<div class="line"><a id="l03996" name="l03996"></a><span class="lineno"> 3996</span>  {</div>
-<div class="line"><a id="l03997" name="l03997"></a><span class="lineno"> 3997</span>    *err_code = sock-&gt;m_disconnect_cause;</div>
-<div class="line"><a id="l03998" name="l03998"></a><span class="lineno"> 3998</span>    <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>(); <span class="comment">// sock will go out of scope and thus will be destroyed.</span></div>
-<div class="line"><a id="l03999" name="l03999"></a><span class="lineno"> 3999</span>  }</div>
-<div class="line"><a id="l04000" name="l04000"></a><span class="lineno"> 4000</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l04001" name="l04001"></a><span class="lineno"> 4001</span>  err_code-&gt;clear();</div>
-<div class="line"><a id="l04002" name="l04002"></a><span class="lineno"> 4002</span>  <span class="keywordflow">return</span> sock;</div>
-<div class="line"><a id="l04003" name="l04003"></a><span class="lineno"> 4003</span>} <span class="comment">// Node::connect_with_metadata()</span></div>
-<div class="line"><a id="l04004" name="l04004"></a><span class="lineno"> 4004</span> </div>
-<div class="line"><a id="l04005" name="l04005"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ac619d1a96cc62d223f990ee6a3c909ff"> 4005</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac619d1a96cc62d223f990ee6a3c909ff">Node::connect_worker</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; to, <span class="keyword">const</span> boost::asio::const_buffer&amp; serialized_metadata,</div>
-<div class="line"><a id="l04006" name="l04006"></a><span class="lineno"> 4006</span>                          <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* sock_opts,</div>
-<div class="line"><a id="l04007" name="l04007"></a><span class="lineno"> 4007</span>                          <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>* sock_ptr)</div>
-<div class="line"><a id="l04008" name="l04008"></a><span class="lineno"> 4008</span>{</div>
-<div class="line"><a id="l04009" name="l04009"></a><span class="lineno"> 4009</span>  <span class="keyword">using </span>boost::asio::buffer;</div>
-<div class="line"><a id="l04010" name="l04010"></a><span class="lineno"> 4010</span>  <span class="keyword">using </span>boost::asio::ip::address;</div>
-<div class="line"><a id="l04011" name="l04011"></a><span class="lineno"> 4011</span> </div>
-<div class="line"><a id="l04012" name="l04012"></a><span class="lineno"> 4012</span>  assert(sock_ptr);</div>
-<div class="line"><a id="l04013" name="l04013"></a><span class="lineno"> 4013</span> </div>
-<div class="line"><a id="l04014" name="l04014"></a><span class="lineno"> 4014</span>  <span class="comment">// We are in thread W.  connect() is waiting for us to set *sock_ptr and return.</span></div>
-<div class="line"><a id="l04015" name="l04015"></a><span class="lineno"> 4015</span> </div>
-<div class="line"><a id="l04016" name="l04016"></a><span class="lineno"> 4016</span>  <span class="comment">// Create new socket and set all members that may be immediately accessed by user in thread U after we&#39;re done.</span></div>
+<div class="line"><a id="l03927" name="l03927"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#af39d69abde4efa88d5d40e1c529c1a25"> 3927</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#af39d69abde4efa88d5d40e1c529c1a25">Node::ok_to_rexmit_or_close</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
+<div class="line"><a id="l03928" name="l03928"></a><span class="lineno"> 3928</span>                                 <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Peer_socket::Sent_pkt_ordered_by_when_iter</a>&amp; pkt_it,</div>
+<div class="line"><a id="l03929" name="l03929"></a><span class="lineno"> 3929</span>                                 <span class="keywordtype">bool</span> defer_delta_check)</div>
+<div class="line"><a id="l03930" name="l03930"></a><span class="lineno"> 3930</span>{</div>
+<div class="line"><a id="l03931" name="l03931"></a><span class="lineno"> 3931</span>  <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">Peer_socket::Sent_packet</a>&amp; pkt = *pkt_it-&gt;second;</div>
+<div class="line"><a id="l03932" name="l03932"></a><span class="lineno"> 3932</span> </div>
+<div class="line"><a id="l03933" name="l03933"></a><span class="lineno"> 3933</span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> seq_num, seq_num_end;</div>
+<div class="line"><a id="l03934" name="l03934"></a><span class="lineno"> 3934</span>  get_seq_num_range(pkt_it, &amp;seq_num, &amp;seq_num_end);</div>
+<div class="line"><a id="l03935" name="l03935"></a><span class="lineno"> 3935</span> </div>
+<div class="line"><a id="l03936" name="l03936"></a><span class="lineno"> 3936</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rexmit_id = pkt.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf">m_packet</a>-&gt;m_rexmit_id;</div>
+<div class="line"><a id="l03937" name="l03937"></a><span class="lineno"> 3937</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;On [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] attempting to queue for retransmission &quot;</span></div>
+<div class="line"><a id="l03938" name="l03938"></a><span class="lineno"> 3938</span>                 <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, &quot;</span> &lt;&lt; seq_num_end &lt;&lt; <span class="stringliteral">&quot;] which has been &quot;</span></div>
+<div class="line"><a id="l03939" name="l03939"></a><span class="lineno"> 3939</span>                 <span class="stringliteral">&quot;retransmitted [&quot;</span> &lt;&lt; rexmit_id &lt;&lt; <span class="stringliteral">&quot;] times so far.&quot;</span>);</div>
+<div class="line"><a id="l03940" name="l03940"></a><span class="lineno"> 3940</span>  <span class="keywordflow">if</span> (rexmit_id == sock-&gt;opt(sock-&gt;m_opts.m_st_max_rexmissions_per_packet))</div>
+<div class="line"><a id="l03941" name="l03941"></a><span class="lineno"> 3941</span>  {</div>
+<div class="line"><a id="l03942" name="l03942"></a><span class="lineno"> 3942</span>    rst_and_close_connection_immediately(socket_id(sock), sock,</div>
+<div class="line"><a id="l03943" name="l03943"></a><span class="lineno"> 3943</span>                                         <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a3c1dc923491f5e20763fc27d025665d4">error::Code::S_CONN_RESET_TOO_MANY_REXMITS</a>, defer_delta_check);</div>
+<div class="line"><a id="l03944" name="l03944"></a><span class="lineno"> 3944</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
+<div class="line"><a id="l03945" name="l03945"></a><span class="lineno"> 3945</span>  }</div>
+<div class="line"><a id="l03946" name="l03946"></a><span class="lineno"> 3946</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l03947" name="l03947"></a><span class="lineno"> 3947</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
+<div class="line"><a id="l03948" name="l03948"></a><span class="lineno"> 3948</span>}</div>
+<div class="line"><a id="l03949" name="l03949"></a><span class="lineno"> 3949</span> </div>
+<div class="line"><a id="l03950" name="l03950"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a893c8393930110e2aa0823583e37cabd"> 3950</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a893c8393930110e2aa0823583e37cabd">Node::connect</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; to, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code,</div>
+<div class="line"><a id="l03951" name="l03951"></a><span class="lineno"> 3951</span>                               <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* opts)</div>
+<div class="line"><a id="l03952" name="l03952"></a><span class="lineno"> 3952</span>{</div>
+<div class="line"><a id="l03953" name="l03953"></a><span class="lineno"> 3953</span>  <span class="keywordflow">return</span> connect_with_metadata(to, boost::asio::buffer(&amp;S_DEFAULT_CONN_METADATA, <span class="keyword">sizeof</span>(S_DEFAULT_CONN_METADATA)),</div>
+<div class="line"><a id="l03954" name="l03954"></a><span class="lineno"> 3954</span>                               err_code, opts);</div>
+<div class="line"><a id="l03955" name="l03955"></a><span class="lineno"> 3955</span>}</div>
+<div class="line"><a id="l03956" name="l03956"></a><span class="lineno"> 3956</span> </div>
+<div class="line"><a id="l03957" name="l03957"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ae9a0e5492b9ea005cc12c20c8e7cec9a"> 3957</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ae9a0e5492b9ea005cc12c20c8e7cec9a">Node::connect_with_metadata</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; to,</div>
+<div class="line"><a id="l03958" name="l03958"></a><span class="lineno"> 3958</span>                                             <span class="keyword">const</span> boost::asio::const_buffer&amp; serialized_metadata,</div>
+<div class="line"><a id="l03959" name="l03959"></a><span class="lineno"> 3959</span>                                             <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code,</div>
+<div class="line"><a id="l03960" name="l03960"></a><span class="lineno"> 3960</span>                                             <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* sock_opts)</div>
+<div class="line"><a id="l03961" name="l03961"></a><span class="lineno"> 3961</span>{</div>
+<div class="line"><a id="l03962" name="l03962"></a><span class="lineno"> 3962</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
+<div class="line"><a id="l03963" name="l03963"></a><span class="lineno"> 3963</span>  <a class="code hl_define" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>, <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ae9a0e5492b9ea005cc12c20c8e7cec9a">Node::connect_with_metadata</a>,</div>
+<div class="line"><a id="l03964" name="l03964"></a><span class="lineno"> 3964</span>                                     bind_ns::cref(to), bind_ns::cref(serialized_metadata), _1, sock_opts);</div>
+<div class="line"><a id="l03965" name="l03965"></a><span class="lineno"> 3965</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
+<div class="line"><a id="l03966" name="l03966"></a><span class="lineno"> 3966</span> </div>
+<div class="line"><a id="l03967" name="l03967"></a><span class="lineno"> 3967</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
+<div class="line"><a id="l03968" name="l03968"></a><span class="lineno"> 3968</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1async.html#a24567271e97a67d3cae6bd8bf8dc63c4">async::asio_exec_ctx_post</a>;</div>
+<div class="line"><a id="l03969" name="l03969"></a><span class="lineno"> 3969</span>  <span class="keyword">using </span><a class="code hl_enumeration" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485">async::Synchronicity</a>;</div>
+<div class="line"><a id="l03970" name="l03970"></a><span class="lineno"> 3970</span>  <span class="keyword">using </span>bind_ns::bind;</div>
+<div class="line"><a id="l03971" name="l03971"></a><span class="lineno"> 3971</span> </div>
+<div class="line"><a id="l03972" name="l03972"></a><span class="lineno"> 3972</span>  <span class="comment">// We are in thread U != W.</span></div>
+<div class="line"><a id="l03973" name="l03973"></a><span class="lineno"> 3973</span> </div>
+<div class="line"><a id="l03974" name="l03974"></a><span class="lineno"> 3974</span>  <span class="keywordflow">if</span> (!running())</div>
+<div class="line"><a id="l03975" name="l03975"></a><span class="lineno"> 3975</span>  {</div>
+<div class="line"><a id="l03976" name="l03976"></a><span class="lineno"> 3976</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>);</div>
+<div class="line"><a id="l03977" name="l03977"></a><span class="lineno"> 3977</span>    <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>();</div>
+<div class="line"><a id="l03978" name="l03978"></a><span class="lineno"> 3978</span>  }</div>
+<div class="line"><a id="l03979" name="l03979"></a><span class="lineno"> 3979</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l03980" name="l03980"></a><span class="lineno"> 3980</span> </div>
+<div class="line"><a id="l03981" name="l03981"></a><span class="lineno"> 3981</span>  <span class="comment">// If it&#39;s good enough for DATA packets, it&#39;s good enough for metadata in SYN.</span></div>
+<div class="line"><a id="l03982" name="l03982"></a><span class="lineno"> 3982</span>  <span class="keywordflow">if</span> (serialized_metadata.size() &gt; <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#aa1f821dde38a7aa572651730744edbd8">max_block_size</a>())</div>
+<div class="line"><a id="l03983" name="l03983"></a><span class="lineno"> 3983</span>  {</div>
+<div class="line"><a id="l03984" name="l03984"></a><span class="lineno"> 3984</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a9a2cbc62120ca52c1f7e695b56b2bdcd">error::Code::S_CONN_METADATA_TOO_LARGE</a>);</div>
+<div class="line"><a id="l03985" name="l03985"></a><span class="lineno"> 3985</span>    <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>();</div>
+<div class="line"><a id="l03986" name="l03986"></a><span class="lineno"> 3986</span>  }</div>
+<div class="line"><a id="l03987" name="l03987"></a><span class="lineno"> 3987</span> </div>
+<div class="line"><a id="l03988" name="l03988"></a><span class="lineno"> 3988</span>  <span class="comment">/* Put the rest of the work into thread W.  For justification, see big comment in listen().</span></div>
+<div class="line"><a id="l03989" name="l03989"></a><span class="lineno"> 3989</span><span class="comment">   * Addendum regarding performance: connect() is probably called more frequently than listen(), but</span></div>
+<div class="line"><a id="l03990" name="l03990"></a><span class="lineno"> 3990</span><span class="comment">   * I doubt the performance impact is serious even so.  send() and receive() might be a different</span></div>
+<div class="line"><a id="l03991" name="l03991"></a><span class="lineno"> 3991</span><span class="comment">   * story. */</span></div>
+<div class="line"><a id="l03992" name="l03992"></a><span class="lineno"> 3992</span> </div>
+<div class="line"><a id="l03993" name="l03993"></a><span class="lineno"> 3993</span>  <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock;</div>
+<div class="line"><a id="l03994" name="l03994"></a><span class="lineno"> 3994</span>  <span class="comment">/* Load this-&gt;connect_worker(...) onto thread W boost.asio work queue.</span></div>
+<div class="line"><a id="l03995" name="l03995"></a><span class="lineno"> 3995</span><span class="comment">   * We don&#39;t return until it finishes; therefore it is fine to do total &amp; capture. */</span></div>
+<div class="line"><a id="l03996" name="l03996"></a><span class="lineno"> 3996</span>  <a class="code hl_function" href="namespaceflow_1_1async.html#a24567271e97a67d3cae6bd8bf8dc63c4">asio_exec_ctx_post</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), &amp;m_task_engine, Synchronicity::S_ASYNC_AND_AWAIT_CONCURRENT_COMPLETION,</div>
+<div class="line"><a id="l03997" name="l03997"></a><span class="lineno"> 3997</span>                     [&amp;]() { connect_worker(to, serialized_metadata, sock_opts, &amp;sock); });</div>
+<div class="line"><a id="l03998" name="l03998"></a><span class="lineno"> 3998</span>  <span class="comment">// If got here, the task has completed in thread W and signaled us to that effect.</span></div>
+<div class="line"><a id="l03999" name="l03999"></a><span class="lineno"> 3999</span> </div>
+<div class="line"><a id="l04000" name="l04000"></a><span class="lineno"> 4000</span>  <span class="comment">// connect_worker() indicates success or failure through this data member.</span></div>
+<div class="line"><a id="l04001" name="l04001"></a><span class="lineno"> 4001</span>  <span class="keywordflow">if</span> (sock-&gt;m_disconnect_cause)</div>
+<div class="line"><a id="l04002" name="l04002"></a><span class="lineno"> 4002</span>  {</div>
+<div class="line"><a id="l04003" name="l04003"></a><span class="lineno"> 4003</span>    *err_code = sock-&gt;m_disconnect_cause;</div>
+<div class="line"><a id="l04004" name="l04004"></a><span class="lineno"> 4004</span>    <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>(); <span class="comment">// sock will go out of scope and thus will be destroyed.</span></div>
+<div class="line"><a id="l04005" name="l04005"></a><span class="lineno"> 4005</span>  }</div>
+<div class="line"><a id="l04006" name="l04006"></a><span class="lineno"> 4006</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l04007" name="l04007"></a><span class="lineno"> 4007</span>  err_code-&gt;clear();</div>
+<div class="line"><a id="l04008" name="l04008"></a><span class="lineno"> 4008</span>  <span class="keywordflow">return</span> sock;</div>
+<div class="line"><a id="l04009" name="l04009"></a><span class="lineno"> 4009</span>} <span class="comment">// Node::connect_with_metadata()</span></div>
+<div class="line"><a id="l04010" name="l04010"></a><span class="lineno"> 4010</span> </div>
+<div class="line"><a id="l04011" name="l04011"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ac619d1a96cc62d223f990ee6a3c909ff"> 4011</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac619d1a96cc62d223f990ee6a3c909ff">Node::connect_worker</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; to, <span class="keyword">const</span> boost::asio::const_buffer&amp; serialized_metadata,</div>
+<div class="line"><a id="l04012" name="l04012"></a><span class="lineno"> 4012</span>                          <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* sock_opts,</div>
+<div class="line"><a id="l04013" name="l04013"></a><span class="lineno"> 4013</span>                          <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>* sock_ptr)</div>
+<div class="line"><a id="l04014" name="l04014"></a><span class="lineno"> 4014</span>{</div>
+<div class="line"><a id="l04015" name="l04015"></a><span class="lineno"> 4015</span>  <span class="keyword">using </span>boost::asio::buffer;</div>
+<div class="line"><a id="l04016" name="l04016"></a><span class="lineno"> 4016</span>  <span class="keyword">using </span>boost::asio::ip::address;</div>
 <div class="line"><a id="l04017" name="l04017"></a><span class="lineno"> 4017</span> </div>
-<div class="line"><a id="l04018" name="l04018"></a><span class="lineno"> 4018</span>  <span class="keyword">auto</span>&amp; sock = *sock_ptr;</div>
-<div class="line"><a id="l04019" name="l04019"></a><span class="lineno"> 4019</span>  <span class="keywordflow">if</span> (sock_opts)</div>
-<div class="line"><a id="l04020" name="l04020"></a><span class="lineno"> 4020</span>  {</div>
-<div class="line"><a id="l04021" name="l04021"></a><span class="lineno"> 4021</span>    <span class="comment">/* They provided custom per-socket options.  Before we give those to the new socket, let&#39;s</span></div>
-<div class="line"><a id="l04022" name="l04022"></a><span class="lineno"> 4022</span><span class="comment">     * validate them (for proper values and internal consistency, etc.). */</span></div>
+<div class="line"><a id="l04018" name="l04018"></a><span class="lineno"> 4018</span>  assert(sock_ptr);</div>
+<div class="line"><a id="l04019" name="l04019"></a><span class="lineno"> 4019</span> </div>
+<div class="line"><a id="l04020" name="l04020"></a><span class="lineno"> 4020</span>  <span class="comment">// We are in thread W.  connect() is waiting for us to set *sock_ptr and return.</span></div>
+<div class="line"><a id="l04021" name="l04021"></a><span class="lineno"> 4021</span> </div>
+<div class="line"><a id="l04022" name="l04022"></a><span class="lineno"> 4022</span>  <span class="comment">// Create new socket and set all members that may be immediately accessed by user in thread U after we&#39;re done.</span></div>
 <div class="line"><a id="l04023" name="l04023"></a><span class="lineno"> 4023</span> </div>
-<div class="line"><a id="l04024" name="l04024"></a><span class="lineno"> 4024</span>    <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> err_code;</div>
-<div class="line"><a id="l04025" name="l04025"></a><span class="lineno"> 4025</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> opts_ok = sock_validate_options(*sock_opts, 0, &amp;err_code);</div>
-<div class="line"><a id="l04026" name="l04026"></a><span class="lineno"> 4026</span> </div>
-<div class="line"><a id="l04027" name="l04027"></a><span class="lineno"> 4027</span>    <span class="comment">// Due to the advertised interface of the current method, we must create a socket even on error.</span></div>
-<div class="line"><a id="l04028" name="l04028"></a><span class="lineno"> 4028</span>    sock.reset(sock_create(*sock_opts));</div>
+<div class="line"><a id="l04024" name="l04024"></a><span class="lineno"> 4024</span>  <span class="keyword">auto</span>&amp; sock = *sock_ptr;</div>
+<div class="line"><a id="l04025" name="l04025"></a><span class="lineno"> 4025</span>  <span class="keywordflow">if</span> (sock_opts)</div>
+<div class="line"><a id="l04026" name="l04026"></a><span class="lineno"> 4026</span>  {</div>
+<div class="line"><a id="l04027" name="l04027"></a><span class="lineno"> 4027</span>    <span class="comment">/* They provided custom per-socket options.  Before we give those to the new socket, let&#39;s</span></div>
+<div class="line"><a id="l04028" name="l04028"></a><span class="lineno"> 4028</span><span class="comment">     * validate them (for proper values and internal consistency, etc.). */</span></div>
 <div class="line"><a id="l04029" name="l04029"></a><span class="lineno"> 4029</span> </div>
-<div class="line"><a id="l04030" name="l04030"></a><span class="lineno"> 4030</span>    <span class="comment">// Now report error if indeed options were invalid.  err_code is already set and logged in that case.</span></div>
-<div class="line"><a id="l04031" name="l04031"></a><span class="lineno"> 4031</span>    <span class="keywordflow">if</span> (!opts_ok)</div>
-<div class="line"><a id="l04032" name="l04032"></a><span class="lineno"> 4032</span>    {</div>
-<div class="line"><a id="l04033" name="l04033"></a><span class="lineno"> 4033</span>      sock-&gt;m_disconnect_cause = err_code;</div>
-<div class="line"><a id="l04034" name="l04034"></a><span class="lineno"> 4034</span>      <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l04035" name="l04035"></a><span class="lineno"> 4035</span>    }</div>
-<div class="line"><a id="l04036" name="l04036"></a><span class="lineno"> 4036</span>    <span class="comment">// else</span></div>
-<div class="line"><a id="l04037" name="l04037"></a><span class="lineno"> 4037</span>  }</div>
-<div class="line"><a id="l04038" name="l04038"></a><span class="lineno"> 4038</span>  <span class="keywordflow">else</span></div>
-<div class="line"><a id="l04039" name="l04039"></a><span class="lineno"> 4039</span>  {</div>
-<div class="line"><a id="l04040" name="l04040"></a><span class="lineno"> 4040</span>    <span class="comment">/* More typically, they did not provide per-socket options.  So we just pass our global</span></div>
-<div class="line"><a id="l04041" name="l04041"></a><span class="lineno"> 4041</span><span class="comment">     * template for the per-socket options to the Peer_socket constructor.  The only caveat is</span></div>
-<div class="line"><a id="l04042" name="l04042"></a><span class="lineno"> 4042</span><span class="comment">     * that template may be concurrently changed, so we must lock it.  Could do it with opt(), but</span></div>
-<div class="line"><a id="l04043" name="l04043"></a><span class="lineno"> 4043</span><span class="comment">     * that introduces an extra copy of the entire struct, so just do it explicitly.</span></div>
-<div class="line"><a id="l04044" name="l04044"></a><span class="lineno"> 4044</span><span class="comment">     *</span></div>
-<div class="line"><a id="l04045" name="l04045"></a><span class="lineno"> 4045</span><span class="comment">     * Note: no need to validate; global options (including per-socket ones) are validated</span></div>
-<div class="line"><a id="l04046" name="l04046"></a><span class="lineno"> 4046</span><span class="comment">     * elsewhere when set. */</span></div>
-<div class="line"><a id="l04047" name="l04047"></a><span class="lineno"> 4047</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket.html">Peer_socket</a>* sock_non_ptr;</div>
-<div class="line"><a id="l04048" name="l04048"></a><span class="lineno"> 4048</span>    {</div>
-<div class="line"><a id="l04049" name="l04049"></a><span class="lineno"> 4049</span>      <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Node.html#a97c8679c70ac9c7dda394fdf335aaed7">Options_lock</a> lock(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a">m_opts_mutex</a>);</div>
-<div class="line"><a id="l04050" name="l04050"></a><span class="lineno"> 4050</span>      sock_non_ptr = sock_create(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ad59c09f34003873a3c207cc590236773">m_opts</a>.m_dyn_sock_opts);</div>
-<div class="line"><a id="l04051" name="l04051"></a><span class="lineno"> 4051</span>    }</div>
-<div class="line"><a id="l04052" name="l04052"></a><span class="lineno"> 4052</span>    sock.reset(sock_non_ptr);</div>
-<div class="line"><a id="l04053" name="l04053"></a><span class="lineno"> 4053</span>  }</div>
-<div class="line"><a id="l04054" name="l04054"></a><span class="lineno"> 4054</span> </div>
-<div class="line"><a id="l04055" name="l04055"></a><span class="lineno"> 4055</span>  <span class="comment">// Socket created; set members.</span></div>
-<div class="line"><a id="l04056" name="l04056"></a><span class="lineno"> 4056</span> </div>
-<div class="line"><a id="l04057" name="l04057"></a><span class="lineno"> 4057</span>  sock-&gt;m_active_connect = <span class="keyword">true</span>;</div>
-<div class="line"><a id="l04058" name="l04058"></a><span class="lineno"> 4058</span>  sock-&gt;m_node = <span class="keyword">this</span>;</div>
-<div class="line"><a id="l04059" name="l04059"></a><span class="lineno"> 4059</span>  sock_set_state(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">Peer_socket::Open_sub_state::S_CONNECTING</a>);</div>
-<div class="line"><a id="l04060" name="l04060"></a><span class="lineno"> 4060</span>  sock-&gt;m_remote_endpoint = to;</div>
-<div class="line"><a id="l04061" name="l04061"></a><span class="lineno"> 4061</span>  <span class="comment">// Will be sent in SYN to be deserialized by user on the other side.  Save here if we must retransmit SYN.</span></div>
-<div class="line"><a id="l04062" name="l04062"></a><span class="lineno"> 4062</span>  sock-&gt;m_serialized_metadata.assign_copy(serialized_metadata);</div>
-<div class="line"><a id="l04063" name="l04063"></a><span class="lineno"> 4063</span> </div>
-<div class="line"><a id="l04064" name="l04064"></a><span class="lineno"> 4064</span>  <span class="comment">/* Initialize the connection&#39;s send bandwidth estimator (object that estimates available</span></div>
-<div class="line"><a id="l04065" name="l04065"></a><span class="lineno"> 4065</span><span class="comment">   * outgoing bandwidth based on incoming acknowledgments).  It may be used by m_snd_cong_ctl,</span></div>
-<div class="line"><a id="l04066" name="l04066"></a><span class="lineno"> 4066</span><span class="comment">   * depending on the strategy chosen, but may be useful in its own right.  Hence it&#39;s a separate</span></div>
-<div class="line"><a id="l04067" name="l04067"></a><span class="lineno"> 4067</span><span class="comment">   * object, not inside *m_snd_cong_ctl. */</span></div>
-<div class="line"><a id="l04068" name="l04068"></a><span class="lineno"> 4068</span>  sock-&gt;m_snd_bandwidth_estimator.reset(<span class="keyword">new</span> <a class="code hl_friend" href="classflow_1_1net__flow_1_1Peer__socket.html#a7c0f36768414ae35afeb525636a41290">Send_bandwidth_estimator</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock));</div>
+<div class="line"><a id="l04030" name="l04030"></a><span class="lineno"> 4030</span>    <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> err_code;</div>
+<div class="line"><a id="l04031" name="l04031"></a><span class="lineno"> 4031</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> opts_ok = sock_validate_options(*sock_opts, 0, &amp;err_code);</div>
+<div class="line"><a id="l04032" name="l04032"></a><span class="lineno"> 4032</span> </div>
+<div class="line"><a id="l04033" name="l04033"></a><span class="lineno"> 4033</span>    <span class="comment">// Due to the advertised interface of the current method, we must create a socket even on error.</span></div>
+<div class="line"><a id="l04034" name="l04034"></a><span class="lineno"> 4034</span>    sock.reset(sock_create(*sock_opts));</div>
+<div class="line"><a id="l04035" name="l04035"></a><span class="lineno"> 4035</span> </div>
+<div class="line"><a id="l04036" name="l04036"></a><span class="lineno"> 4036</span>    <span class="comment">// Now report error if indeed options were invalid.  err_code is already set and logged in that case.</span></div>
+<div class="line"><a id="l04037" name="l04037"></a><span class="lineno"> 4037</span>    <span class="keywordflow">if</span> (!opts_ok)</div>
+<div class="line"><a id="l04038" name="l04038"></a><span class="lineno"> 4038</span>    {</div>
+<div class="line"><a id="l04039" name="l04039"></a><span class="lineno"> 4039</span>      sock-&gt;m_disconnect_cause = err_code;</div>
+<div class="line"><a id="l04040" name="l04040"></a><span class="lineno"> 4040</span>      <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l04041" name="l04041"></a><span class="lineno"> 4041</span>    }</div>
+<div class="line"><a id="l04042" name="l04042"></a><span class="lineno"> 4042</span>    <span class="comment">// else</span></div>
+<div class="line"><a id="l04043" name="l04043"></a><span class="lineno"> 4043</span>  }</div>
+<div class="line"><a id="l04044" name="l04044"></a><span class="lineno"> 4044</span>  <span class="keywordflow">else</span></div>
+<div class="line"><a id="l04045" name="l04045"></a><span class="lineno"> 4045</span>  {</div>
+<div class="line"><a id="l04046" name="l04046"></a><span class="lineno"> 4046</span>    <span class="comment">/* More typically, they did not provide per-socket options.  So we just pass our global</span></div>
+<div class="line"><a id="l04047" name="l04047"></a><span class="lineno"> 4047</span><span class="comment">     * template for the per-socket options to the Peer_socket constructor.  The only caveat is</span></div>
+<div class="line"><a id="l04048" name="l04048"></a><span class="lineno"> 4048</span><span class="comment">     * that template may be concurrently changed, so we must lock it.  Could do it with opt(), but</span></div>
+<div class="line"><a id="l04049" name="l04049"></a><span class="lineno"> 4049</span><span class="comment">     * that introduces an extra copy of the entire struct, so just do it explicitly.</span></div>
+<div class="line"><a id="l04050" name="l04050"></a><span class="lineno"> 4050</span><span class="comment">     *</span></div>
+<div class="line"><a id="l04051" name="l04051"></a><span class="lineno"> 4051</span><span class="comment">     * Note: no need to validate; global options (including per-socket ones) are validated</span></div>
+<div class="line"><a id="l04052" name="l04052"></a><span class="lineno"> 4052</span><span class="comment">     * elsewhere when set. */</span></div>
+<div class="line"><a id="l04053" name="l04053"></a><span class="lineno"> 4053</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket.html">Peer_socket</a>* sock_non_ptr;</div>
+<div class="line"><a id="l04054" name="l04054"></a><span class="lineno"> 4054</span>    {</div>
+<div class="line"><a id="l04055" name="l04055"></a><span class="lineno"> 4055</span>      <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Node.html#a97c8679c70ac9c7dda394fdf335aaed7">Options_lock</a> lock(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a">m_opts_mutex</a>);</div>
+<div class="line"><a id="l04056" name="l04056"></a><span class="lineno"> 4056</span>      sock_non_ptr = sock_create(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ad59c09f34003873a3c207cc590236773">m_opts</a>.m_dyn_sock_opts);</div>
+<div class="line"><a id="l04057" name="l04057"></a><span class="lineno"> 4057</span>    }</div>
+<div class="line"><a id="l04058" name="l04058"></a><span class="lineno"> 4058</span>    sock.reset(sock_non_ptr);</div>
+<div class="line"><a id="l04059" name="l04059"></a><span class="lineno"> 4059</span>  }</div>
+<div class="line"><a id="l04060" name="l04060"></a><span class="lineno"> 4060</span> </div>
+<div class="line"><a id="l04061" name="l04061"></a><span class="lineno"> 4061</span>  <span class="comment">// Socket created; set members.</span></div>
+<div class="line"><a id="l04062" name="l04062"></a><span class="lineno"> 4062</span> </div>
+<div class="line"><a id="l04063" name="l04063"></a><span class="lineno"> 4063</span>  sock-&gt;m_active_connect = <span class="keyword">true</span>;</div>
+<div class="line"><a id="l04064" name="l04064"></a><span class="lineno"> 4064</span>  sock-&gt;m_node = <span class="keyword">this</span>;</div>
+<div class="line"><a id="l04065" name="l04065"></a><span class="lineno"> 4065</span>  sock_set_state(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">Peer_socket::Open_sub_state::S_CONNECTING</a>);</div>
+<div class="line"><a id="l04066" name="l04066"></a><span class="lineno"> 4066</span>  sock-&gt;m_remote_endpoint = to;</div>
+<div class="line"><a id="l04067" name="l04067"></a><span class="lineno"> 4067</span>  <span class="comment">// Will be sent in SYN to be deserialized by user on the other side.  Save here if we must retransmit SYN.</span></div>
+<div class="line"><a id="l04068" name="l04068"></a><span class="lineno"> 4068</span>  sock-&gt;m_serialized_metadata.assign_copy(serialized_metadata);</div>
 <div class="line"><a id="l04069" name="l04069"></a><span class="lineno"> 4069</span> </div>
-<div class="line"><a id="l04070" name="l04070"></a><span class="lineno"> 4070</span>  <span class="comment">// Initialize the connection&#39;s congestion control strategy based on the configured strategy.</span></div>
-<div class="line"><a id="l04071" name="l04071"></a><span class="lineno"> 4071</span>  sock-&gt;m_snd_cong_ctl.reset</div>
-<div class="line"><a id="l04072" name="l04072"></a><span class="lineno"> 4072</span>    (<a class="code hl_function" href="classflow_1_1net__flow_1_1Congestion__control__selector.html#a52eee18d41c3f9cc7d6c48b766a7919f">Congestion_control_selector::create_strategy</a>(sock-&gt;m_opts.m_st_cong_ctl_strategy, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock));</div>
-<div class="line"><a id="l04073" name="l04073"></a><span class="lineno"> 4073</span>  <span class="comment">// ^-- No need to use opt() yet: user doesn&#39;t have socket and cannot set_options() on it yet.</span></div>
-<div class="line"><a id="l04074" name="l04074"></a><span class="lineno"> 4074</span> </div>
-<div class="line"><a id="l04075" name="l04075"></a><span class="lineno"> 4075</span>  <span class="comment">/* Tweak: If they specify the &quot;any&quot; IP address as the destination (which means any interface on</span></div>
-<div class="line"><a id="l04076" name="l04076"></a><span class="lineno"> 4076</span><span class="comment">   * this machine), response traffic will look as though it&#39;s coming from the loopback IP address,</span></div>
-<div class="line"><a id="l04077" name="l04077"></a><span class="lineno"> 4077</span><span class="comment">   * or another specific IP address -- not &quot;any.&quot;  Thus it will not be able to be properly</span></div>
-<div class="line"><a id="l04078" name="l04078"></a><span class="lineno"> 4078</span><span class="comment">   * demultiplexed to this socket, since that will be saved at the &quot;any&quot; address in our data</span></div>
-<div class="line"><a id="l04079" name="l04079"></a><span class="lineno"> 4079</span><span class="comment">   * structures.  So that&#39;s an error. */</span></div>
-<div class="line"><a id="l04080" name="l04080"></a><span class="lineno"> 4080</span>  <span class="keywordtype">bool</span> ip_addr_any_error = <span class="keyword">false</span>;</div>
-<div class="line"><a id="l04081" name="l04081"></a><span class="lineno"> 4081</span>  <span class="keyword">const</span> address&amp; addr = to.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Remote__endpoint.html#a582f3a55d828cd4e36369682315c7629">m_udp_endpoint</a>.address(); <span class="comment">// Short-hand.</span></div>
-<div class="line"><a id="l04082" name="l04082"></a><span class="lineno"> 4082</span>  <span class="keywordflow">if</span> (addr.is_v4())</div>
-<div class="line"><a id="l04083" name="l04083"></a><span class="lineno"> 4083</span>  {</div>
-<div class="line"><a id="l04084" name="l04084"></a><span class="lineno"> 4084</span>    <span class="keywordflow">if</span> (addr.to_v4() == util::Ip_address_v4::any())</div>
-<div class="line"><a id="l04085" name="l04085"></a><span class="lineno"> 4085</span>    {</div>
-<div class="line"><a id="l04086" name="l04086"></a><span class="lineno"> 4086</span>      ip_addr_any_error = <span class="keyword">true</span>;</div>
-<div class="line"><a id="l04087" name="l04087"></a><span class="lineno"> 4087</span>    }</div>
-<div class="line"><a id="l04088" name="l04088"></a><span class="lineno"> 4088</span>  }</div>
-<div class="line"><a id="l04089" name="l04089"></a><span class="lineno"> 4089</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (addr.is_v6())</div>
-<div class="line"><a id="l04090" name="l04090"></a><span class="lineno"> 4090</span>  {</div>
-<div class="line"><a id="l04091" name="l04091"></a><span class="lineno"> 4091</span>    <span class="keywordflow">if</span> (addr.to_v6() == util::Ip_address_v6::any())</div>
-<div class="line"><a id="l04092" name="l04092"></a><span class="lineno"> 4092</span>    {</div>
-<div class="line"><a id="l04093" name="l04093"></a><span class="lineno"> 4093</span>      ip_addr_any_error = <span class="keyword">true</span>;</div>
-<div class="line"><a id="l04094" name="l04094"></a><span class="lineno"> 4094</span>    }</div>
-<div class="line"><a id="l04095" name="l04095"></a><span class="lineno"> 4095</span>  }</div>
-<div class="line"><a id="l04096" name="l04096"></a><span class="lineno"> 4096</span>  <span class="comment">// else a new version of IP!  Yay!</span></div>
-<div class="line"><a id="l04097" name="l04097"></a><span class="lineno"> 4097</span>  <span class="keywordflow">if</span> (ip_addr_any_error)</div>
-<div class="line"><a id="l04098" name="l04098"></a><span class="lineno"> 4098</span>  {</div>
-<div class="line"><a id="l04099" name="l04099"></a><span class="lineno"> 4099</span>    <span class="comment">// Mark/log error.</span></div>
-<div class="line"><a id="l04100" name="l04100"></a><span class="lineno"> 4100</span>    <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = &amp;sock-&gt;m_disconnect_cause;</div>
-<div class="line"><a id="l04101" name="l04101"></a><span class="lineno"> 4101</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482aac3ec8d83192e9cd271376fce4001e99">error::Code::S_CANNOT_CONNECT_TO_IP_ANY</a>);</div>
-<div class="line"><a id="l04102" name="l04102"></a><span class="lineno"> 4102</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l04103" name="l04103"></a><span class="lineno"> 4103</span>  }</div>
-<div class="line"><a id="l04104" name="l04104"></a><span class="lineno"> 4104</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l04105" name="l04105"></a><span class="lineno"> 4105</span> </div>
-<div class="line"><a id="l04106" name="l04106"></a><span class="lineno"> 4106</span>  <span class="comment">// Allocate ephemeral local port.</span></div>
-<div class="line"><a id="l04107" name="l04107"></a><span class="lineno"> 4107</span> </div>
-<div class="line"><a id="l04108" name="l04108"></a><span class="lineno"> 4108</span>  sock-&gt;m_local_port = m_ports.reserve_ephemeral_port(&amp;sock-&gt;m_disconnect_cause);</div>
-<div class="line"><a id="l04109" name="l04109"></a><span class="lineno"> 4109</span>  <span class="keywordflow">if</span> (sock-&gt;m_local_port == <a class="code hl_variable" href="namespaceflow_1_1net__flow.html#a9dd0c9d8de00fab78d8b0a3f50dad2a9">S_PORT_ANY</a>)</div>
-<div class="line"><a id="l04110" name="l04110"></a><span class="lineno"> 4110</span>  {</div>
-<div class="line"><a id="l04111" name="l04111"></a><span class="lineno"> 4111</span>    <span class="comment">// Error already logged and is in sock-&gt;m_disconnect_cause.</span></div>
-<div class="line"><a id="l04112" name="l04112"></a><span class="lineno"> 4112</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l04113" name="l04113"></a><span class="lineno"> 4113</span>  }</div>
-<div class="line"><a id="l04114" name="l04114"></a><span class="lineno"> 4114</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l04115" name="l04115"></a><span class="lineno"> 4115</span> </div>
-<div class="line"><a id="l04116" name="l04116"></a><span class="lineno"> 4116</span>  <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a> socket_id = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">Node::socket_id</a>(sock);</div>
-<div class="line"><a id="l04117" name="l04117"></a><span class="lineno"> 4117</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;NetFlow worker thread starting active-connect of [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l04118" name="l04118"></a><span class="lineno"> 4118</span> </div>
-<div class="line"><a id="l04119" name="l04119"></a><span class="lineno"> 4119</span>  <span class="keywordflow">if</span> (<a class="code hl_function" href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">util::key_exists</a>(m_socks, socket_id))</div>
-<div class="line"><a id="l04120" name="l04120"></a><span class="lineno"> 4120</span>  {</div>
-<div class="line"><a id="l04121" name="l04121"></a><span class="lineno"> 4121</span>    <span class="comment">/* This is an active connect (we&#39;re intiating the connection).  Therefore in particular it</span></div>
-<div class="line"><a id="l04122" name="l04122"></a><span class="lineno"> 4122</span><span class="comment">     * should be impossible that our local_port() equals an already existing connection&#39;s</span></div>
-<div class="line"><a id="l04123" name="l04123"></a><span class="lineno"> 4123</span><span class="comment">     * local_port(); Port_space is supposed to prevent the same ephemeral port from being handed out</span></div>
-<div class="line"><a id="l04124" name="l04124"></a><span class="lineno"> 4124</span><span class="comment">     * to more than one connection.  Therefore this must be a programming error. */</span></div>
-<div class="line"><a id="l04125" name="l04125"></a><span class="lineno"> 4125</span> </div>
-<div class="line"><a id="l04126" name="l04126"></a><span class="lineno"> 4126</span>    <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;Cannot add [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;], because such a connection already exists.  &quot;</span></div>
-<div class="line"><a id="l04127" name="l04127"></a><span class="lineno"> 4127</span>                     <span class="stringliteral">&quot;This is an ephemeral port collision and &quot;</span></div>
-<div class="line"><a id="l04128" name="l04128"></a><span class="lineno"> 4128</span>                     <span class="stringliteral">&quot;constitutes either a bug or an extremely unlikely condition.&quot;</span>);</div>
-<div class="line"><a id="l04129" name="l04129"></a><span class="lineno"> 4129</span> </div>
-<div class="line"><a id="l04130" name="l04130"></a><span class="lineno"> 4130</span>    <span class="comment">// Mark/log error.</span></div>
-<div class="line"><a id="l04131" name="l04131"></a><span class="lineno"> 4131</span>    <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = &amp;sock-&gt;m_disconnect_cause;</div>
-<div class="line"><a id="l04132" name="l04132"></a><span class="lineno"> 4132</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae90ff1c87f2393dd6b14232b159f02b2">error::Code::S_INTERNAL_ERROR_PORT_COLLISION</a>);</div>
-<div class="line"><a id="l04133" name="l04133"></a><span class="lineno"> 4133</span> </div>
-<div class="line"><a id="l04134" name="l04134"></a><span class="lineno"> 4134</span>    <span class="comment">// Return port.</span></div>
-<div class="line"><a id="l04135" name="l04135"></a><span class="lineno"> 4135</span>    <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> return_err_code;</div>
-<div class="line"><a id="l04136" name="l04136"></a><span class="lineno"> 4136</span>    m_ports.return_port(sock-&gt;m_local_port, &amp;return_err_code);</div>
-<div class="line"><a id="l04137" name="l04137"></a><span class="lineno"> 4137</span>    assert(!return_err_code);</div>
-<div class="line"><a id="l04138" name="l04138"></a><span class="lineno"> 4138</span> </div>
-<div class="line"><a id="l04139" name="l04139"></a><span class="lineno"> 4139</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l04140" name="l04140"></a><span class="lineno"> 4140</span>  } <span class="comment">// if (that socket pair already exists)</span></div>
-<div class="line"><a id="l04141" name="l04141"></a><span class="lineno"> 4141</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l04142" name="l04142"></a><span class="lineno"> 4142</span> </div>
-<div class="line"><a id="l04143" name="l04143"></a><span class="lineno"> 4143</span>  <span class="comment">/* Try the packet send just below again if SYN not acknowledged within a certain amount of time.</span></div>
-<div class="line"><a id="l04144" name="l04144"></a><span class="lineno"> 4144</span><span class="comment">   * Give up if that happens too many times.  Why do this BEFORE sending packet?  Because</span></div>
-<div class="line"><a id="l04145" name="l04145"></a><span class="lineno"> 4145</span><span class="comment">   * this can fail, in which case we don&#39;t want a weird situation where we&#39;ve sent</span></div>
-<div class="line"><a id="l04146" name="l04146"></a><span class="lineno"> 4146</span><span class="comment">   * the packet but failed to start the retransmit/timeout timers.</span></div>
-<div class="line"><a id="l04147" name="l04147"></a><span class="lineno"> 4147</span><span class="comment">   * Update: It can no longer fail, so that reasoning is N/A.  Not moving, though, because it&#39;s still fine here. */</span></div>
-<div class="line"><a id="l04148" name="l04148"></a><span class="lineno"> 4148</span>  setup_connection_timers(socket_id, sock, <span class="keyword">true</span>);</div>
-<div class="line"><a id="l04149" name="l04149"></a><span class="lineno"> 4149</span> </div>
-<div class="line"><a id="l04150" name="l04150"></a><span class="lineno"> 4150</span>  <span class="comment">/* Initial Sequence Number (ISN) (save before create_syn() uses it).</span></div>
-<div class="line"><a id="l04151" name="l04151"></a><span class="lineno"> 4151</span><span class="comment">   * Remember it in case we must retransmit the SYN.  (m_snd_next_seq_num may have been further increased by then.) */</span></div>
-<div class="line"><a id="l04152" name="l04152"></a><span class="lineno"> 4152</span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; init_seq_num = sock-&gt;m_snd_init_seq_num;</div>
-<div class="line"><a id="l04153" name="l04153"></a><span class="lineno"> 4153</span>  init_seq_num = m_seq_num_generator.generate_init_seq_num();</div>
-<div class="line"><a id="l04154" name="l04154"></a><span class="lineno"> 4154</span>  <span class="comment">/* Setting this now ensures ALL subsequent copies (essentially, every single Sequence_number on this socket&#39;s</span></div>
-<div class="line"><a id="l04155" name="l04155"></a><span class="lineno"> 4155</span><span class="comment">   * local data number line!) will have the same nice metadata (hence nice logging) too.</span></div>
-<div class="line"><a id="l04156" name="l04156"></a><span class="lineno"> 4156</span><span class="comment">   * The `+ 1` nuance is explained in class Sequence_number doc header, *Metadata* section. */</span></div>
-<div class="line"><a id="l04157" name="l04157"></a><span class="lineno"> 4157</span>  init_seq_num.<a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a77ce8cf348e93caa8bb03f22f7b7d120">set_metadata</a>(<span class="charliteral">&#39;L&#39;</span>, init_seq_num + 1, sock-&gt;max_block_size());</div>
-<div class="line"><a id="l04158" name="l04158"></a><span class="lineno"> 4158</span>  <span class="comment">// Sequence number of first bit of actual data.</span></div>
-<div class="line"><a id="l04159" name="l04159"></a><span class="lineno"> 4159</span>  sock-&gt;m_snd_next_seq_num = init_seq_num + 1;</div>
-<div class="line"><a id="l04160" name="l04160"></a><span class="lineno"> 4160</span> </div>
-<div class="line"><a id="l04161" name="l04161"></a><span class="lineno"> 4161</span>  <span class="comment">// Make a SYN packet to send.</span></div>
-<div class="line"><a id="l04162" name="l04162"></a><span class="lineno"> 4162</span>  <span class="keyword">auto</span> syn = create_syn(sock);</div>
-<div class="line"><a id="l04163" name="l04163"></a><span class="lineno"> 4163</span> </div>
-<div class="line"><a id="l04164" name="l04164"></a><span class="lineno"> 4164</span>  <span class="comment">// Fill out common fields and asynchronously send packet.</span></div>
-<div class="line"><a id="l04165" name="l04165"></a><span class="lineno"> 4165</span>  <span class="keywordflow">if</span> (!async_sock_low_lvl_packet_send_paced(sock,</div>
-<div class="line"><a id="l04166" name="l04166"></a><span class="lineno"> 4166</span>                                            <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(syn),</div>
-<div class="line"><a id="l04167" name="l04167"></a><span class="lineno"> 4167</span>                                            &amp;sock-&gt;m_disconnect_cause))</div>
-<div class="line"><a id="l04168" name="l04168"></a><span class="lineno"> 4168</span>  {</div>
-<div class="line"><a id="l04169" name="l04169"></a><span class="lineno"> 4169</span>    <span class="comment">// Error marked and logged already.</span></div>
-<div class="line"><a id="l04170" name="l04170"></a><span class="lineno"> 4170</span> </div>
-<div class="line"><a id="l04171" name="l04171"></a><span class="lineno"> 4171</span>    <span class="comment">// Return port.</span></div>
-<div class="line"><a id="l04172" name="l04172"></a><span class="lineno"> 4172</span>    <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> return_err_code;</div>
-<div class="line"><a id="l04173" name="l04173"></a><span class="lineno"> 4173</span>    m_ports.return_port(sock-&gt;m_local_port, &amp;return_err_code);</div>
-<div class="line"><a id="l04174" name="l04174"></a><span class="lineno"> 4174</span>    assert(!return_err_code);</div>
-<div class="line"><a id="l04175" name="l04175"></a><span class="lineno"> 4175</span> </div>
-<div class="line"><a id="l04176" name="l04176"></a><span class="lineno"> 4176</span>    <span class="comment">// Cancel any timers set up above.</span></div>
-<div class="line"><a id="l04177" name="l04177"></a><span class="lineno"> 4177</span>    cancel_timers(sock);</div>
-<div class="line"><a id="l04178" name="l04178"></a><span class="lineno"> 4178</span> </div>
-<div class="line"><a id="l04179" name="l04179"></a><span class="lineno"> 4179</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l04180" name="l04180"></a><span class="lineno"> 4180</span>  }</div>
-<div class="line"><a id="l04181" name="l04181"></a><span class="lineno"> 4181</span>  <span class="comment">/* send will happen asynchronously, and the registered completion handler will execute in this</span></div>
-<div class="line"><a id="l04182" name="l04182"></a><span class="lineno"> 4182</span><span class="comment">   * thread when done (NO SOONER than this method finishes executing). */</span></div>
-<div class="line"><a id="l04183" name="l04183"></a><span class="lineno"> 4183</span> </div>
-<div class="line"><a id="l04184" name="l04184"></a><span class="lineno"> 4184</span>  <span class="comment">// No more erros: Map socket pair to the socket data structure (kind of analogous to a TCP net-stack&#39;s TCB structure).</span></div>
-<div class="line"><a id="l04185" name="l04185"></a><span class="lineno"> 4185</span>  m_socks[socket_id] = sock;</div>
-<div class="line"><a id="l04186" name="l04186"></a><span class="lineno"> 4186</span> </div>
-<div class="line"><a id="l04187" name="l04187"></a><span class="lineno"> 4187</span>  <span class="comment">// CLOSED -&gt; SYN_SENT.</span></div>
-<div class="line"><a id="l04188" name="l04188"></a><span class="lineno"> 4188</span>  sock_set_int_state(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">Peer_socket::Int_state::S_SYN_SENT</a>);</div>
-<div class="line"><a id="l04189" name="l04189"></a><span class="lineno"> 4189</span>} <span class="comment">// Node::connect_worker()</span></div>
-<div class="line"><a id="l04190" name="l04190"></a><span class="lineno"> 4190</span> </div>
-<div class="line"><a id="l04191" name="l04191"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ac094b83973fd9af8b45d8f4cb3c14e35"> 4191</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aba2e6fc905dbeef3ea9e31bf844f8da5">Node::sync_connect</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; to, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code,</div>
-<div class="line"><a id="l04192" name="l04192"></a><span class="lineno"> 4192</span>                                    <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* sock_opts)</div>
-<div class="line"><a id="l04193" name="l04193"></a><span class="lineno"> 4193</span>{</div>
-<div class="line"><a id="l04194" name="l04194"></a><span class="lineno"> 4194</span>  <span class="keywordflow">return</span> sync_connect_with_metadata(to, Fine_duration::max(),</div>
-<div class="line"><a id="l04195" name="l04195"></a><span class="lineno"> 4195</span>                                    boost::asio::buffer(&amp;S_DEFAULT_CONN_METADATA, <span class="keyword">sizeof</span>(S_DEFAULT_CONN_METADATA)),</div>
-<div class="line"><a id="l04196" name="l04196"></a><span class="lineno"> 4196</span>                                    err_code, sock_opts);</div>
-<div class="line"><a id="l04197" name="l04197"></a><span class="lineno"> 4197</span>}</div>
-<div class="line"><a id="l04198" name="l04198"></a><span class="lineno"> 4198</span> </div>
-<div class="line"><a id="l04199" name="l04199"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a6db1043586a0e6413b1118d6c090bf89"> 4199</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a6725d69ea1a6457d88abb63cef6e6bb2">Node::sync_connect_with_metadata</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; to,</div>
-<div class="line"><a id="l04200" name="l04200"></a><span class="lineno"> 4200</span>                                                  <span class="keyword">const</span> boost::asio::const_buffer&amp; serialized_metadata,</div>
-<div class="line"><a id="l04201" name="l04201"></a><span class="lineno"> 4201</span>                                                  <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code, <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* opts)</div>
-<div class="line"><a id="l04202" name="l04202"></a><span class="lineno"> 4202</span>{</div>
-<div class="line"><a id="l04203" name="l04203"></a><span class="lineno"> 4203</span>  <span class="keywordflow">return</span> sync_connect_with_metadata(to, Fine_duration::max(), serialized_metadata, err_code, opts);</div>
-<div class="line"><a id="l04204" name="l04204"></a><span class="lineno"> 4204</span>}</div>
-<div class="line"><a id="l04205" name="l04205"></a><span class="lineno"> 4205</span> </div>
-<div class="line"><a id="l04206" name="l04206"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a49e2786f5d1eeb068a828902a631a39a"> 4206</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a49e2786f5d1eeb068a828902a631a39a">Node::sync_connect_impl</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; to, <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>&amp; max_wait,</div>
-<div class="line"><a id="l04207" name="l04207"></a><span class="lineno"> 4207</span>                                         <span class="keyword">const</span> boost::asio::const_buffer&amp; serialized_metadata,</div>
-<div class="line"><a id="l04208" name="l04208"></a><span class="lineno"> 4208</span>                                         <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code, <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* sock_opts)</div>
-<div class="line"><a id="l04209" name="l04209"></a><span class="lineno"> 4209</span>{</div>
-<div class="line"><a id="l04210" name="l04210"></a><span class="lineno"> 4210</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
-<div class="line"><a id="l04211" name="l04211"></a><span class="lineno"> 4211</span>  <a class="code hl_define" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>, <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a49e2786f5d1eeb068a828902a631a39a">Node::sync_connect_impl</a>,</div>
-<div class="line"><a id="l04212" name="l04212"></a><span class="lineno"> 4212</span>                                     bind_ns::cref(to), bind_ns::cref(max_wait), bind_ns::cref(serialized_metadata),</div>
-<div class="line"><a id="l04213" name="l04213"></a><span class="lineno"> 4213</span>                                     _1, sock_opts);</div>
-<div class="line"><a id="l04214" name="l04214"></a><span class="lineno"> 4214</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
-<div class="line"><a id="l04215" name="l04215"></a><span class="lineno"> 4215</span> </div>
-<div class="line"><a id="l04216" name="l04216"></a><span class="lineno"> 4216</span>  <span class="keyword">using </span>util::bind_ns::bind;</div>
-<div class="line"><a id="l04217" name="l04217"></a><span class="lineno"> 4217</span> </div>
-<div class="line"><a id="l04218" name="l04218"></a><span class="lineno"> 4218</span>  <span class="comment">// We are in thread U != W.</span></div>
-<div class="line"><a id="l04219" name="l04219"></a><span class="lineno"> 4219</span> </div>
-<div class="line"><a id="l04220" name="l04220"></a><span class="lineno"> 4220</span>  <span class="comment">/* This is actually pretty simple.  All we want to do is connect(), which is non-blocking, and</span></div>
-<div class="line"><a id="l04221" name="l04221"></a><span class="lineno"> 4221</span><span class="comment">   * then block until the connection is ready (at least according to our side).  Ready means that</span></div>
-<div class="line"><a id="l04222" name="l04222"></a><span class="lineno"> 4222</span><span class="comment">   * the socket is Writable (since user has no access to the socket yet, nothing can be loading</span></div>
-<div class="line"><a id="l04223" name="l04223"></a><span class="lineno"> 4223</span><span class="comment">   * data onto the Send buffer, and obviously the congestion window is clear, so it must be</span></div>
-<div class="line"><a id="l04224" name="l04224"></a><span class="lineno"> 4224</span><span class="comment">   * Writable).  Note that, like BSD sockets, we specifically don&#39;t consider a socket Writable</span></div>
-<div class="line"><a id="l04225" name="l04225"></a><span class="lineno"> 4225</span><span class="comment">   * until in ESTABLISHED internal state. */</span></div>
-<div class="line"><a id="l04226" name="l04226"></a><span class="lineno"> 4226</span> </div>
-<div class="line"><a id="l04227" name="l04227"></a><span class="lineno"> 4227</span>  <span class="comment">/* For the &quot;block until Writable&quot; part, create and load the Event_set.  Do this before connect(),</span></div>
-<div class="line"><a id="l04228" name="l04228"></a><span class="lineno"> 4228</span><span class="comment">   * so that if it fails we don&#39;t have to then clean up the socket before returning error to user. */</span></div>
-<div class="line"><a id="l04229" name="l04229"></a><span class="lineno"> 4229</span> </div>
-<div class="line"><a id="l04230" name="l04230"></a><span class="lineno"> 4230</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Event_set::Ptr</a> event_set = event_set_create(err_code);</div>
-<div class="line"><a id="l04231" name="l04231"></a><span class="lineno"> 4231</span>  <span class="keywordflow">if</span> (!event_set)</div>
-<div class="line"><a id="l04232" name="l04232"></a><span class="lineno"> 4232</span>  {</div>
-<div class="line"><a id="l04233" name="l04233"></a><span class="lineno"> 4233</span>    assert(*err_code == <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>);</div>
-<div class="line"><a id="l04234" name="l04234"></a><span class="lineno"> 4234</span>    <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>(); <span class="comment">// *err_code is set.</span></div>
-<div class="line"><a id="l04235" name="l04235"></a><span class="lineno"> 4235</span>  }</div>
-<div class="line"><a id="l04236" name="l04236"></a><span class="lineno"> 4236</span>  <span class="comment">// Now we know Node is running(); and we have event_set.</span></div>
-<div class="line"><a id="l04237" name="l04237"></a><span class="lineno"> 4237</span> </div>
-<div class="line"><a id="l04238" name="l04238"></a><span class="lineno"> 4238</span>  <span class="comment">// We must clean up event_set at any return point below.</span></div>
-<div class="line"><a id="l04239" name="l04239"></a><span class="lineno"> 4239</span>  <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> dummy_prevents_throw;</div>
-<div class="line"><a id="l04240" name="l04240"></a><span class="lineno"> 4240</span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#ab22fd89e165a9e6deaa174bc0dfdc8de">util::Auto_cleanup</a> event_set_cleanup = <a class="code hl_function" href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">util::setup_auto_cleanup</a>([&amp;]()</div>
-<div class="line"><a id="l04241" name="l04241"></a><span class="lineno"> 4241</span>  {</div>
-<div class="line"><a id="l04242" name="l04242"></a><span class="lineno"> 4242</span>    <span class="comment">// Eat any error when closing Event_set, as it&#39;s unlikely and not interesting to user.</span></div>
-<div class="line"><a id="l04243" name="l04243"></a><span class="lineno"> 4243</span>    event_set-&gt;close(&amp;dummy_prevents_throw);</div>
-<div class="line"><a id="l04244" name="l04244"></a><span class="lineno"> 4244</span>  });</div>
-<div class="line"><a id="l04245" name="l04245"></a><span class="lineno"> 4245</span> </div>
-<div class="line"><a id="l04246" name="l04246"></a><span class="lineno"> 4246</span>  <span class="keyword">const</span> <span class="keyword">auto</span> sock = connect_with_metadata(to, serialized_metadata, err_code, sock_opts);</div>
-<div class="line"><a id="l04247" name="l04247"></a><span class="lineno"> 4247</span>  <span class="keywordflow">if</span> (!sock)</div>
-<div class="line"><a id="l04248" name="l04248"></a><span class="lineno"> 4248</span>  {</div>
-<div class="line"><a id="l04249" name="l04249"></a><span class="lineno"> 4249</span>    <span class="keywordflow">return</span> sock; <span class="comment">// *err_code is set.  It&#39;s probably some user error like an invalid destination.</span></div>
-<div class="line"><a id="l04250" name="l04250"></a><span class="lineno"> 4250</span>  }</div>
-<div class="line"><a id="l04251" name="l04251"></a><span class="lineno"> 4251</span>  <span class="comment">// else we have a socket that has started connecting.</span></div>
-<div class="line"><a id="l04252" name="l04252"></a><span class="lineno"> 4252</span> </div>
-<div class="line"><a id="l04253" name="l04253"></a><span class="lineno"> 4253</span>  <span class="comment">/* We must clean up sock (call sock-&gt;close_abruptly(&amp;dummy_prevents_throw)) at any return point (including</span></div>
-<div class="line"><a id="l04254" name="l04254"></a><span class="lineno"> 4254</span><span class="comment">   * exception throw) below, EXCEPT the success case.  Because of the latter, we can&#39;t use the</span></div>
-<div class="line"><a id="l04255" name="l04255"></a><span class="lineno"> 4255</span><span class="comment">   * auto_cleanup trick we used on event_set.  So, we&#39;ll just have to handle sock cleanup</span></div>
-<div class="line"><a id="l04256" name="l04256"></a><span class="lineno"> 4256</span><span class="comment">   * manually. */</span></div>
-<div class="line"><a id="l04257" name="l04257"></a><span class="lineno"> 4257</span> </div>
-<div class="line"><a id="l04258" name="l04258"></a><span class="lineno"> 4258</span>  <span class="comment">// Add the one event about which we care.</span></div>
-<div class="line"><a id="l04259" name="l04259"></a><span class="lineno"> 4259</span>  <span class="keywordtype">bool</span> result = event_set-&gt;add_wanted_socket&lt;<a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket.html">Peer_socket</a>&gt;(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">Event_set::Event_type::S_PEER_SOCKET_WRITABLE</a>,</div>
-<div class="line"><a id="l04260" name="l04260"></a><span class="lineno"> 4260</span>                                                          &amp;dummy_prevents_throw);</div>
-<div class="line"><a id="l04261" name="l04261"></a><span class="lineno"> 4261</span>  assert(result); <span class="comment">// Node is running, so there&#39;s no way that should have failed.</span></div>
-<div class="line"><a id="l04262" name="l04262"></a><span class="lineno"> 4262</span> </div>
-<div class="line"><a id="l04263" name="l04263"></a><span class="lineno"> 4263</span>  <span class="comment">// Wait for Writable.</span></div>
-<div class="line"><a id="l04264" name="l04264"></a><span class="lineno"> 4264</span>  result = event_set-&gt;sync_wait(max_wait, err_code);</div>
-<div class="line"><a id="l04265" name="l04265"></a><span class="lineno"> 4265</span>  <span class="keywordflow">if</span> (!result)</div>
-<div class="line"><a id="l04266" name="l04266"></a><span class="lineno"> 4266</span>  {</div>
-<div class="line"><a id="l04267" name="l04267"></a><span class="lineno"> 4267</span>    <span class="keywordflow">if</span> (*err_code == <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae643fd244bd1d6b483295cb9f356b0ae">error::Code::S_EVENT_SET_CLOSED</a>)</div>
-<div class="line"><a id="l04268" name="l04268"></a><span class="lineno"> 4268</span>    {</div>
-<div class="line"><a id="l04269" name="l04269"></a><span class="lineno"> 4269</span>      <span class="comment">// It&#39;s unlikely, but I guess someone could have destroyed Node during the wait (we do allow that during sleep).</span></div>
-<div class="line"><a id="l04270" name="l04270"></a><span class="lineno"> 4270</span>      *err_code = <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>;</div>
-<div class="line"><a id="l04271" name="l04271"></a><span class="lineno"> 4271</span>    }</div>
-<div class="line"><a id="l04272" name="l04272"></a><span class="lineno"> 4272</span>    <span class="keywordflow">else</span></div>
-<div class="line"><a id="l04273" name="l04273"></a><span class="lineno"> 4273</span>    {</div>
-<div class="line"><a id="l04274" name="l04274"></a><span class="lineno"> 4274</span>      <span class="comment">// This is quite common and is analogous to POSIX&#39;s EINTR semantics (signal interrupted the blocking call).</span></div>
-<div class="line"><a id="l04275" name="l04275"></a><span class="lineno"> 4275</span>      assert(*err_code == <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab92ec3b2b78d74acf0fda0786f601df5">error::Code::S_WAIT_INTERRUPTED</a>);</div>
-<div class="line"><a id="l04276" name="l04276"></a><span class="lineno"> 4276</span>    }</div>
-<div class="line"><a id="l04277" name="l04277"></a><span class="lineno"> 4277</span> </div>
-<div class="line"><a id="l04278" name="l04278"></a><span class="lineno"> 4278</span>    <span class="comment">// Clean up (as discussed above).</span></div>
-<div class="line"><a id="l04279" name="l04279"></a><span class="lineno"> 4279</span>    sock-&gt;close_abruptly(&amp;dummy_prevents_throw); <span class="comment">// Eat any error; user doesn&#39;t care.</span></div>
-<div class="line"><a id="l04280" name="l04280"></a><span class="lineno"> 4280</span>    <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>(); <span class="comment">// *err_code is set.</span></div>
-<div class="line"><a id="l04281" name="l04281"></a><span class="lineno"> 4281</span>  } <span class="comment">// if (sync_wait() failed)</span></div>
-<div class="line"><a id="l04282" name="l04282"></a><span class="lineno"> 4282</span>  <span class="comment">// else we know event_set is still open, and sync_wait() succeeded.</span></div>
+<div class="line"><a id="l04070" name="l04070"></a><span class="lineno"> 4070</span>  <span class="comment">/* Initialize the connection&#39;s send bandwidth estimator (object that estimates available</span></div>
+<div class="line"><a id="l04071" name="l04071"></a><span class="lineno"> 4071</span><span class="comment">   * outgoing bandwidth based on incoming acknowledgments).  It may be used by m_snd_cong_ctl,</span></div>
+<div class="line"><a id="l04072" name="l04072"></a><span class="lineno"> 4072</span><span class="comment">   * depending on the strategy chosen, but may be useful in its own right.  Hence it&#39;s a separate</span></div>
+<div class="line"><a id="l04073" name="l04073"></a><span class="lineno"> 4073</span><span class="comment">   * object, not inside *m_snd_cong_ctl. */</span></div>
+<div class="line"><a id="l04074" name="l04074"></a><span class="lineno"> 4074</span>  sock-&gt;m_snd_bandwidth_estimator.reset(<span class="keyword">new</span> <a class="code hl_friend" href="classflow_1_1net__flow_1_1Peer__socket.html#a7c0f36768414ae35afeb525636a41290">Send_bandwidth_estimator</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock));</div>
+<div class="line"><a id="l04075" name="l04075"></a><span class="lineno"> 4075</span> </div>
+<div class="line"><a id="l04076" name="l04076"></a><span class="lineno"> 4076</span>  <span class="comment">// Initialize the connection&#39;s congestion control strategy based on the configured strategy.</span></div>
+<div class="line"><a id="l04077" name="l04077"></a><span class="lineno"> 4077</span>  sock-&gt;m_snd_cong_ctl.reset</div>
+<div class="line"><a id="l04078" name="l04078"></a><span class="lineno"> 4078</span>    (<a class="code hl_function" href="classflow_1_1net__flow_1_1Congestion__control__selector.html#a52eee18d41c3f9cc7d6c48b766a7919f">Congestion_control_selector::create_strategy</a>(sock-&gt;m_opts.m_st_cong_ctl_strategy, <a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock));</div>
+<div class="line"><a id="l04079" name="l04079"></a><span class="lineno"> 4079</span>  <span class="comment">// ^-- No need to use opt() yet: user doesn&#39;t have socket and cannot set_options() on it yet.</span></div>
+<div class="line"><a id="l04080" name="l04080"></a><span class="lineno"> 4080</span> </div>
+<div class="line"><a id="l04081" name="l04081"></a><span class="lineno"> 4081</span>  <span class="comment">/* Tweak: If they specify the &quot;any&quot; IP address as the destination (which means any interface on</span></div>
+<div class="line"><a id="l04082" name="l04082"></a><span class="lineno"> 4082</span><span class="comment">   * this machine), response traffic will look as though it&#39;s coming from the loopback IP address,</span></div>
+<div class="line"><a id="l04083" name="l04083"></a><span class="lineno"> 4083</span><span class="comment">   * or another specific IP address -- not &quot;any.&quot;  Thus it will not be able to be properly</span></div>
+<div class="line"><a id="l04084" name="l04084"></a><span class="lineno"> 4084</span><span class="comment">   * demultiplexed to this socket, since that will be saved at the &quot;any&quot; address in our data</span></div>
+<div class="line"><a id="l04085" name="l04085"></a><span class="lineno"> 4085</span><span class="comment">   * structures.  So that&#39;s an error. */</span></div>
+<div class="line"><a id="l04086" name="l04086"></a><span class="lineno"> 4086</span>  <span class="keywordtype">bool</span> ip_addr_any_error = <span class="keyword">false</span>;</div>
+<div class="line"><a id="l04087" name="l04087"></a><span class="lineno"> 4087</span>  <span class="keyword">const</span> address&amp; addr = to.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Remote__endpoint.html#a582f3a55d828cd4e36369682315c7629">m_udp_endpoint</a>.address(); <span class="comment">// Short-hand.</span></div>
+<div class="line"><a id="l04088" name="l04088"></a><span class="lineno"> 4088</span>  <span class="keywordflow">if</span> (addr.is_v4())</div>
+<div class="line"><a id="l04089" name="l04089"></a><span class="lineno"> 4089</span>  {</div>
+<div class="line"><a id="l04090" name="l04090"></a><span class="lineno"> 4090</span>    <span class="keywordflow">if</span> (addr.to_v4() == util::Ip_address_v4::any())</div>
+<div class="line"><a id="l04091" name="l04091"></a><span class="lineno"> 4091</span>    {</div>
+<div class="line"><a id="l04092" name="l04092"></a><span class="lineno"> 4092</span>      ip_addr_any_error = <span class="keyword">true</span>;</div>
+<div class="line"><a id="l04093" name="l04093"></a><span class="lineno"> 4093</span>    }</div>
+<div class="line"><a id="l04094" name="l04094"></a><span class="lineno"> 4094</span>  }</div>
+<div class="line"><a id="l04095" name="l04095"></a><span class="lineno"> 4095</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (addr.is_v6())</div>
+<div class="line"><a id="l04096" name="l04096"></a><span class="lineno"> 4096</span>  {</div>
+<div class="line"><a id="l04097" name="l04097"></a><span class="lineno"> 4097</span>    <span class="keywordflow">if</span> (addr.to_v6() == util::Ip_address_v6::any())</div>
+<div class="line"><a id="l04098" name="l04098"></a><span class="lineno"> 4098</span>    {</div>
+<div class="line"><a id="l04099" name="l04099"></a><span class="lineno"> 4099</span>      ip_addr_any_error = <span class="keyword">true</span>;</div>
+<div class="line"><a id="l04100" name="l04100"></a><span class="lineno"> 4100</span>    }</div>
+<div class="line"><a id="l04101" name="l04101"></a><span class="lineno"> 4101</span>  }</div>
+<div class="line"><a id="l04102" name="l04102"></a><span class="lineno"> 4102</span>  <span class="comment">// else a new version of IP!  Yay!</span></div>
+<div class="line"><a id="l04103" name="l04103"></a><span class="lineno"> 4103</span>  <span class="keywordflow">if</span> (ip_addr_any_error)</div>
+<div class="line"><a id="l04104" name="l04104"></a><span class="lineno"> 4104</span>  {</div>
+<div class="line"><a id="l04105" name="l04105"></a><span class="lineno"> 4105</span>    <span class="comment">// Mark/log error.</span></div>
+<div class="line"><a id="l04106" name="l04106"></a><span class="lineno"> 4106</span>    <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = &amp;sock-&gt;m_disconnect_cause;</div>
+<div class="line"><a id="l04107" name="l04107"></a><span class="lineno"> 4107</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482aac3ec8d83192e9cd271376fce4001e99">error::Code::S_CANNOT_CONNECT_TO_IP_ANY</a>);</div>
+<div class="line"><a id="l04108" name="l04108"></a><span class="lineno"> 4108</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l04109" name="l04109"></a><span class="lineno"> 4109</span>  }</div>
+<div class="line"><a id="l04110" name="l04110"></a><span class="lineno"> 4110</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l04111" name="l04111"></a><span class="lineno"> 4111</span> </div>
+<div class="line"><a id="l04112" name="l04112"></a><span class="lineno"> 4112</span>  <span class="comment">// Allocate ephemeral local port.</span></div>
+<div class="line"><a id="l04113" name="l04113"></a><span class="lineno"> 4113</span> </div>
+<div class="line"><a id="l04114" name="l04114"></a><span class="lineno"> 4114</span>  sock-&gt;m_local_port = m_ports.reserve_ephemeral_port(&amp;sock-&gt;m_disconnect_cause);</div>
+<div class="line"><a id="l04115" name="l04115"></a><span class="lineno"> 4115</span>  <span class="keywordflow">if</span> (sock-&gt;m_local_port == <a class="code hl_variable" href="namespaceflow_1_1net__flow.html#a9dd0c9d8de00fab78d8b0a3f50dad2a9">S_PORT_ANY</a>)</div>
+<div class="line"><a id="l04116" name="l04116"></a><span class="lineno"> 4116</span>  {</div>
+<div class="line"><a id="l04117" name="l04117"></a><span class="lineno"> 4117</span>    <span class="comment">// Error already logged and is in sock-&gt;m_disconnect_cause.</span></div>
+<div class="line"><a id="l04118" name="l04118"></a><span class="lineno"> 4118</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l04119" name="l04119"></a><span class="lineno"> 4119</span>  }</div>
+<div class="line"><a id="l04120" name="l04120"></a><span class="lineno"> 4120</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l04121" name="l04121"></a><span class="lineno"> 4121</span> </div>
+<div class="line"><a id="l04122" name="l04122"></a><span class="lineno"> 4122</span>  <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a> socket_id = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">Node::socket_id</a>(sock);</div>
+<div class="line"><a id="l04123" name="l04123"></a><span class="lineno"> 4123</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;NetFlow worker thread starting active-connect of [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l04124" name="l04124"></a><span class="lineno"> 4124</span> </div>
+<div class="line"><a id="l04125" name="l04125"></a><span class="lineno"> 4125</span>  <span class="keywordflow">if</span> (<a class="code hl_function" href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">util::key_exists</a>(m_socks, socket_id))</div>
+<div class="line"><a id="l04126" name="l04126"></a><span class="lineno"> 4126</span>  {</div>
+<div class="line"><a id="l04127" name="l04127"></a><span class="lineno"> 4127</span>    <span class="comment">/* This is an active connect (we&#39;re intiating the connection).  Therefore in particular it</span></div>
+<div class="line"><a id="l04128" name="l04128"></a><span class="lineno"> 4128</span><span class="comment">     * should be impossible that our local_port() equals an already existing connection&#39;s</span></div>
+<div class="line"><a id="l04129" name="l04129"></a><span class="lineno"> 4129</span><span class="comment">     * local_port(); Port_space is supposed to prevent the same ephemeral port from being handed out</span></div>
+<div class="line"><a id="l04130" name="l04130"></a><span class="lineno"> 4130</span><span class="comment">     * to more than one connection.  Therefore this must be a programming error. */</span></div>
+<div class="line"><a id="l04131" name="l04131"></a><span class="lineno"> 4131</span> </div>
+<div class="line"><a id="l04132" name="l04132"></a><span class="lineno"> 4132</span>    <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;Cannot add [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;], because such a connection already exists.  &quot;</span></div>
+<div class="line"><a id="l04133" name="l04133"></a><span class="lineno"> 4133</span>                     <span class="stringliteral">&quot;This is an ephemeral port collision and &quot;</span></div>
+<div class="line"><a id="l04134" name="l04134"></a><span class="lineno"> 4134</span>                     <span class="stringliteral">&quot;constitutes either a bug or an extremely unlikely condition.&quot;</span>);</div>
+<div class="line"><a id="l04135" name="l04135"></a><span class="lineno"> 4135</span> </div>
+<div class="line"><a id="l04136" name="l04136"></a><span class="lineno"> 4136</span>    <span class="comment">// Mark/log error.</span></div>
+<div class="line"><a id="l04137" name="l04137"></a><span class="lineno"> 4137</span>    <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = &amp;sock-&gt;m_disconnect_cause;</div>
+<div class="line"><a id="l04138" name="l04138"></a><span class="lineno"> 4138</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae90ff1c87f2393dd6b14232b159f02b2">error::Code::S_INTERNAL_ERROR_PORT_COLLISION</a>);</div>
+<div class="line"><a id="l04139" name="l04139"></a><span class="lineno"> 4139</span> </div>
+<div class="line"><a id="l04140" name="l04140"></a><span class="lineno"> 4140</span>    <span class="comment">// Return port.</span></div>
+<div class="line"><a id="l04141" name="l04141"></a><span class="lineno"> 4141</span>    <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> return_err_code;</div>
+<div class="line"><a id="l04142" name="l04142"></a><span class="lineno"> 4142</span>    m_ports.return_port(sock-&gt;m_local_port, &amp;return_err_code);</div>
+<div class="line"><a id="l04143" name="l04143"></a><span class="lineno"> 4143</span>    assert(!return_err_code);</div>
+<div class="line"><a id="l04144" name="l04144"></a><span class="lineno"> 4144</span> </div>
+<div class="line"><a id="l04145" name="l04145"></a><span class="lineno"> 4145</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l04146" name="l04146"></a><span class="lineno"> 4146</span>  } <span class="comment">// if (that socket pair already exists)</span></div>
+<div class="line"><a id="l04147" name="l04147"></a><span class="lineno"> 4147</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l04148" name="l04148"></a><span class="lineno"> 4148</span> </div>
+<div class="line"><a id="l04149" name="l04149"></a><span class="lineno"> 4149</span>  <span class="comment">/* Try the packet send just below again if SYN not acknowledged within a certain amount of time.</span></div>
+<div class="line"><a id="l04150" name="l04150"></a><span class="lineno"> 4150</span><span class="comment">   * Give up if that happens too many times.  Why do this BEFORE sending packet?  Because</span></div>
+<div class="line"><a id="l04151" name="l04151"></a><span class="lineno"> 4151</span><span class="comment">   * this can fail, in which case we don&#39;t want a weird situation where we&#39;ve sent</span></div>
+<div class="line"><a id="l04152" name="l04152"></a><span class="lineno"> 4152</span><span class="comment">   * the packet but failed to start the retransmit/timeout timers.</span></div>
+<div class="line"><a id="l04153" name="l04153"></a><span class="lineno"> 4153</span><span class="comment">   * Update: It can no longer fail, so that reasoning is N/A.  Not moving, though, because it&#39;s still fine here. */</span></div>
+<div class="line"><a id="l04154" name="l04154"></a><span class="lineno"> 4154</span>  setup_connection_timers(socket_id, sock, <span class="keyword">true</span>);</div>
+<div class="line"><a id="l04155" name="l04155"></a><span class="lineno"> 4155</span> </div>
+<div class="line"><a id="l04156" name="l04156"></a><span class="lineno"> 4156</span>  <span class="comment">/* Initial Sequence Number (ISN) (save before create_syn() uses it).</span></div>
+<div class="line"><a id="l04157" name="l04157"></a><span class="lineno"> 4157</span><span class="comment">   * Remember it in case we must retransmit the SYN.  (m_snd_next_seq_num may have been further increased by then.) */</span></div>
+<div class="line"><a id="l04158" name="l04158"></a><span class="lineno"> 4158</span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; init_seq_num = sock-&gt;m_snd_init_seq_num;</div>
+<div class="line"><a id="l04159" name="l04159"></a><span class="lineno"> 4159</span>  init_seq_num = m_seq_num_generator.generate_init_seq_num();</div>
+<div class="line"><a id="l04160" name="l04160"></a><span class="lineno"> 4160</span>  <span class="comment">/* Setting this now ensures ALL subsequent copies (essentially, every single Sequence_number on this socket&#39;s</span></div>
+<div class="line"><a id="l04161" name="l04161"></a><span class="lineno"> 4161</span><span class="comment">   * local data number line!) will have the same nice metadata (hence nice logging) too.</span></div>
+<div class="line"><a id="l04162" name="l04162"></a><span class="lineno"> 4162</span><span class="comment">   * The `+ 1` nuance is explained in class Sequence_number doc header, *Metadata* section. */</span></div>
+<div class="line"><a id="l04163" name="l04163"></a><span class="lineno"> 4163</span>  init_seq_num.<a class="code hl_function" href="classflow_1_1net__flow_1_1Sequence__number.html#a77ce8cf348e93caa8bb03f22f7b7d120">set_metadata</a>(<span class="charliteral">&#39;L&#39;</span>, init_seq_num + 1, sock-&gt;max_block_size());</div>
+<div class="line"><a id="l04164" name="l04164"></a><span class="lineno"> 4164</span>  <span class="comment">// Sequence number of first bit of actual data.</span></div>
+<div class="line"><a id="l04165" name="l04165"></a><span class="lineno"> 4165</span>  sock-&gt;m_snd_next_seq_num = init_seq_num + 1;</div>
+<div class="line"><a id="l04166" name="l04166"></a><span class="lineno"> 4166</span> </div>
+<div class="line"><a id="l04167" name="l04167"></a><span class="lineno"> 4167</span>  <span class="comment">// Make a SYN packet to send.</span></div>
+<div class="line"><a id="l04168" name="l04168"></a><span class="lineno"> 4168</span>  <span class="keyword">auto</span> syn = create_syn(sock);</div>
+<div class="line"><a id="l04169" name="l04169"></a><span class="lineno"> 4169</span> </div>
+<div class="line"><a id="l04170" name="l04170"></a><span class="lineno"> 4170</span>  <span class="comment">// Fill out common fields and asynchronously send packet.</span></div>
+<div class="line"><a id="l04171" name="l04171"></a><span class="lineno"> 4171</span>  <span class="keywordflow">if</span> (!async_sock_low_lvl_packet_send_paced(sock,</div>
+<div class="line"><a id="l04172" name="l04172"></a><span class="lineno"> 4172</span>                                            <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(syn),</div>
+<div class="line"><a id="l04173" name="l04173"></a><span class="lineno"> 4173</span>                                            &amp;sock-&gt;m_disconnect_cause))</div>
+<div class="line"><a id="l04174" name="l04174"></a><span class="lineno"> 4174</span>  {</div>
+<div class="line"><a id="l04175" name="l04175"></a><span class="lineno"> 4175</span>    <span class="comment">// Error marked and logged already.</span></div>
+<div class="line"><a id="l04176" name="l04176"></a><span class="lineno"> 4176</span> </div>
+<div class="line"><a id="l04177" name="l04177"></a><span class="lineno"> 4177</span>    <span class="comment">// Return port.</span></div>
+<div class="line"><a id="l04178" name="l04178"></a><span class="lineno"> 4178</span>    <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> return_err_code;</div>
+<div class="line"><a id="l04179" name="l04179"></a><span class="lineno"> 4179</span>    m_ports.return_port(sock-&gt;m_local_port, &amp;return_err_code);</div>
+<div class="line"><a id="l04180" name="l04180"></a><span class="lineno"> 4180</span>    assert(!return_err_code);</div>
+<div class="line"><a id="l04181" name="l04181"></a><span class="lineno"> 4181</span> </div>
+<div class="line"><a id="l04182" name="l04182"></a><span class="lineno"> 4182</span>    <span class="comment">// Cancel any timers set up above.</span></div>
+<div class="line"><a id="l04183" name="l04183"></a><span class="lineno"> 4183</span>    cancel_timers(sock);</div>
+<div class="line"><a id="l04184" name="l04184"></a><span class="lineno"> 4184</span> </div>
+<div class="line"><a id="l04185" name="l04185"></a><span class="lineno"> 4185</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l04186" name="l04186"></a><span class="lineno"> 4186</span>  }</div>
+<div class="line"><a id="l04187" name="l04187"></a><span class="lineno"> 4187</span>  <span class="comment">/* send will happen asynchronously, and the registered completion handler will execute in this</span></div>
+<div class="line"><a id="l04188" name="l04188"></a><span class="lineno"> 4188</span><span class="comment">   * thread when done (NO SOONER than this method finishes executing). */</span></div>
+<div class="line"><a id="l04189" name="l04189"></a><span class="lineno"> 4189</span> </div>
+<div class="line"><a id="l04190" name="l04190"></a><span class="lineno"> 4190</span>  <span class="comment">// No more erros: Map socket pair to the socket data structure (kind of analogous to a TCP net-stack&#39;s TCB structure).</span></div>
+<div class="line"><a id="l04191" name="l04191"></a><span class="lineno"> 4191</span>  m_socks[socket_id] = sock;</div>
+<div class="line"><a id="l04192" name="l04192"></a><span class="lineno"> 4192</span> </div>
+<div class="line"><a id="l04193" name="l04193"></a><span class="lineno"> 4193</span>  <span class="comment">// CLOSED -&gt; SYN_SENT.</span></div>
+<div class="line"><a id="l04194" name="l04194"></a><span class="lineno"> 4194</span>  sock_set_int_state(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">Peer_socket::Int_state::S_SYN_SENT</a>);</div>
+<div class="line"><a id="l04195" name="l04195"></a><span class="lineno"> 4195</span>} <span class="comment">// Node::connect_worker()</span></div>
+<div class="line"><a id="l04196" name="l04196"></a><span class="lineno"> 4196</span> </div>
+<div class="line"><a id="l04197" name="l04197"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ac094b83973fd9af8b45d8f4cb3c14e35"> 4197</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aba2e6fc905dbeef3ea9e31bf844f8da5">Node::sync_connect</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; to, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code,</div>
+<div class="line"><a id="l04198" name="l04198"></a><span class="lineno"> 4198</span>                                    <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* sock_opts)</div>
+<div class="line"><a id="l04199" name="l04199"></a><span class="lineno"> 4199</span>{</div>
+<div class="line"><a id="l04200" name="l04200"></a><span class="lineno"> 4200</span>  <span class="keywordflow">return</span> sync_connect_with_metadata(to, Fine_duration::max(),</div>
+<div class="line"><a id="l04201" name="l04201"></a><span class="lineno"> 4201</span>                                    boost::asio::buffer(&amp;S_DEFAULT_CONN_METADATA, <span class="keyword">sizeof</span>(S_DEFAULT_CONN_METADATA)),</div>
+<div class="line"><a id="l04202" name="l04202"></a><span class="lineno"> 4202</span>                                    err_code, sock_opts);</div>
+<div class="line"><a id="l04203" name="l04203"></a><span class="lineno"> 4203</span>}</div>
+<div class="line"><a id="l04204" name="l04204"></a><span class="lineno"> 4204</span> </div>
+<div class="line"><a id="l04205" name="l04205"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a6db1043586a0e6413b1118d6c090bf89"> 4205</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a6725d69ea1a6457d88abb63cef6e6bb2">Node::sync_connect_with_metadata</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; to,</div>
+<div class="line"><a id="l04206" name="l04206"></a><span class="lineno"> 4206</span>                                                  <span class="keyword">const</span> boost::asio::const_buffer&amp; serialized_metadata,</div>
+<div class="line"><a id="l04207" name="l04207"></a><span class="lineno"> 4207</span>                                                  <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code, <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* opts)</div>
+<div class="line"><a id="l04208" name="l04208"></a><span class="lineno"> 4208</span>{</div>
+<div class="line"><a id="l04209" name="l04209"></a><span class="lineno"> 4209</span>  <span class="keywordflow">return</span> sync_connect_with_metadata(to, Fine_duration::max(), serialized_metadata, err_code, opts);</div>
+<div class="line"><a id="l04210" name="l04210"></a><span class="lineno"> 4210</span>}</div>
+<div class="line"><a id="l04211" name="l04211"></a><span class="lineno"> 4211</span> </div>
+<div class="line"><a id="l04212" name="l04212"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a49e2786f5d1eeb068a828902a631a39a"> 4212</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a49e2786f5d1eeb068a828902a631a39a">Node::sync_connect_impl</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; to, <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>&amp; max_wait,</div>
+<div class="line"><a id="l04213" name="l04213"></a><span class="lineno"> 4213</span>                                         <span class="keyword">const</span> boost::asio::const_buffer&amp; serialized_metadata,</div>
+<div class="line"><a id="l04214" name="l04214"></a><span class="lineno"> 4214</span>                                         <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code, <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* sock_opts)</div>
+<div class="line"><a id="l04215" name="l04215"></a><span class="lineno"> 4215</span>{</div>
+<div class="line"><a id="l04216" name="l04216"></a><span class="lineno"> 4216</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
+<div class="line"><a id="l04217" name="l04217"></a><span class="lineno"> 4217</span>  <a class="code hl_define" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>, <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a49e2786f5d1eeb068a828902a631a39a">Node::sync_connect_impl</a>,</div>
+<div class="line"><a id="l04218" name="l04218"></a><span class="lineno"> 4218</span>                                     bind_ns::cref(to), bind_ns::cref(max_wait), bind_ns::cref(serialized_metadata),</div>
+<div class="line"><a id="l04219" name="l04219"></a><span class="lineno"> 4219</span>                                     _1, sock_opts);</div>
+<div class="line"><a id="l04220" name="l04220"></a><span class="lineno"> 4220</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
+<div class="line"><a id="l04221" name="l04221"></a><span class="lineno"> 4221</span> </div>
+<div class="line"><a id="l04222" name="l04222"></a><span class="lineno"> 4222</span>  <span class="keyword">using </span>util::bind_ns::bind;</div>
+<div class="line"><a id="l04223" name="l04223"></a><span class="lineno"> 4223</span> </div>
+<div class="line"><a id="l04224" name="l04224"></a><span class="lineno"> 4224</span>  <span class="comment">// We are in thread U != W.</span></div>
+<div class="line"><a id="l04225" name="l04225"></a><span class="lineno"> 4225</span> </div>
+<div class="line"><a id="l04226" name="l04226"></a><span class="lineno"> 4226</span>  <span class="comment">/* This is actually pretty simple.  All we want to do is connect(), which is non-blocking, and</span></div>
+<div class="line"><a id="l04227" name="l04227"></a><span class="lineno"> 4227</span><span class="comment">   * then block until the connection is ready (at least according to our side).  Ready means that</span></div>
+<div class="line"><a id="l04228" name="l04228"></a><span class="lineno"> 4228</span><span class="comment">   * the socket is Writable (since user has no access to the socket yet, nothing can be loading</span></div>
+<div class="line"><a id="l04229" name="l04229"></a><span class="lineno"> 4229</span><span class="comment">   * data onto the Send buffer, and obviously the congestion window is clear, so it must be</span></div>
+<div class="line"><a id="l04230" name="l04230"></a><span class="lineno"> 4230</span><span class="comment">   * Writable).  Note that, like BSD sockets, we specifically don&#39;t consider a socket Writable</span></div>
+<div class="line"><a id="l04231" name="l04231"></a><span class="lineno"> 4231</span><span class="comment">   * until in ESTABLISHED internal state. */</span></div>
+<div class="line"><a id="l04232" name="l04232"></a><span class="lineno"> 4232</span> </div>
+<div class="line"><a id="l04233" name="l04233"></a><span class="lineno"> 4233</span>  <span class="comment">/* For the &quot;block until Writable&quot; part, create and load the Event_set.  Do this before connect(),</span></div>
+<div class="line"><a id="l04234" name="l04234"></a><span class="lineno"> 4234</span><span class="comment">   * so that if it fails we don&#39;t have to then clean up the socket before returning error to user. */</span></div>
+<div class="line"><a id="l04235" name="l04235"></a><span class="lineno"> 4235</span> </div>
+<div class="line"><a id="l04236" name="l04236"></a><span class="lineno"> 4236</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Event_set::Ptr</a> event_set = event_set_create(err_code);</div>
+<div class="line"><a id="l04237" name="l04237"></a><span class="lineno"> 4237</span>  <span class="keywordflow">if</span> (!event_set)</div>
+<div class="line"><a id="l04238" name="l04238"></a><span class="lineno"> 4238</span>  {</div>
+<div class="line"><a id="l04239" name="l04239"></a><span class="lineno"> 4239</span>    assert(*err_code == <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>);</div>
+<div class="line"><a id="l04240" name="l04240"></a><span class="lineno"> 4240</span>    <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>(); <span class="comment">// *err_code is set.</span></div>
+<div class="line"><a id="l04241" name="l04241"></a><span class="lineno"> 4241</span>  }</div>
+<div class="line"><a id="l04242" name="l04242"></a><span class="lineno"> 4242</span>  <span class="comment">// Now we know Node is running(); and we have event_set.</span></div>
+<div class="line"><a id="l04243" name="l04243"></a><span class="lineno"> 4243</span> </div>
+<div class="line"><a id="l04244" name="l04244"></a><span class="lineno"> 4244</span>  <span class="comment">// We must clean up event_set at any return point below.</span></div>
+<div class="line"><a id="l04245" name="l04245"></a><span class="lineno"> 4245</span>  <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> dummy_prevents_throw;</div>
+<div class="line"><a id="l04246" name="l04246"></a><span class="lineno"> 4246</span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#ab22fd89e165a9e6deaa174bc0dfdc8de">util::Auto_cleanup</a> event_set_cleanup = <a class="code hl_function" href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">util::setup_auto_cleanup</a>([&amp;]()</div>
+<div class="line"><a id="l04247" name="l04247"></a><span class="lineno"> 4247</span>  {</div>
+<div class="line"><a id="l04248" name="l04248"></a><span class="lineno"> 4248</span>    <span class="comment">// Eat any error when closing Event_set, as it&#39;s unlikely and not interesting to user.</span></div>
+<div class="line"><a id="l04249" name="l04249"></a><span class="lineno"> 4249</span>    event_set-&gt;close(&amp;dummy_prevents_throw);</div>
+<div class="line"><a id="l04250" name="l04250"></a><span class="lineno"> 4250</span>  });</div>
+<div class="line"><a id="l04251" name="l04251"></a><span class="lineno"> 4251</span> </div>
+<div class="line"><a id="l04252" name="l04252"></a><span class="lineno"> 4252</span>  <span class="keyword">const</span> <span class="keyword">auto</span> sock = connect_with_metadata(to, serialized_metadata, err_code, sock_opts);</div>
+<div class="line"><a id="l04253" name="l04253"></a><span class="lineno"> 4253</span>  <span class="keywordflow">if</span> (!sock)</div>
+<div class="line"><a id="l04254" name="l04254"></a><span class="lineno"> 4254</span>  {</div>
+<div class="line"><a id="l04255" name="l04255"></a><span class="lineno"> 4255</span>    <span class="keywordflow">return</span> sock; <span class="comment">// *err_code is set.  It&#39;s probably some user error like an invalid destination.</span></div>
+<div class="line"><a id="l04256" name="l04256"></a><span class="lineno"> 4256</span>  }</div>
+<div class="line"><a id="l04257" name="l04257"></a><span class="lineno"> 4257</span>  <span class="comment">// else we have a socket that has started connecting.</span></div>
+<div class="line"><a id="l04258" name="l04258"></a><span class="lineno"> 4258</span> </div>
+<div class="line"><a id="l04259" name="l04259"></a><span class="lineno"> 4259</span>  <span class="comment">/* We must clean up sock (call sock-&gt;close_abruptly(&amp;dummy_prevents_throw)) at any return point (including</span></div>
+<div class="line"><a id="l04260" name="l04260"></a><span class="lineno"> 4260</span><span class="comment">   * exception throw) below, EXCEPT the success case.  Because of the latter, we can&#39;t use the</span></div>
+<div class="line"><a id="l04261" name="l04261"></a><span class="lineno"> 4261</span><span class="comment">   * auto_cleanup trick we used on event_set.  So, we&#39;ll just have to handle sock cleanup</span></div>
+<div class="line"><a id="l04262" name="l04262"></a><span class="lineno"> 4262</span><span class="comment">   * manually. */</span></div>
+<div class="line"><a id="l04263" name="l04263"></a><span class="lineno"> 4263</span> </div>
+<div class="line"><a id="l04264" name="l04264"></a><span class="lineno"> 4264</span>  <span class="comment">// Add the one event about which we care.</span></div>
+<div class="line"><a id="l04265" name="l04265"></a><span class="lineno"> 4265</span>  <span class="keywordtype">bool</span> result = event_set-&gt;add_wanted_socket&lt;<a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket.html">Peer_socket</a>&gt;(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">Event_set::Event_type::S_PEER_SOCKET_WRITABLE</a>,</div>
+<div class="line"><a id="l04266" name="l04266"></a><span class="lineno"> 4266</span>                                                          &amp;dummy_prevents_throw);</div>
+<div class="line"><a id="l04267" name="l04267"></a><span class="lineno"> 4267</span>  assert(result); <span class="comment">// Node is running, so there&#39;s no way that should have failed.</span></div>
+<div class="line"><a id="l04268" name="l04268"></a><span class="lineno"> 4268</span> </div>
+<div class="line"><a id="l04269" name="l04269"></a><span class="lineno"> 4269</span>  <span class="comment">// Wait for Writable.</span></div>
+<div class="line"><a id="l04270" name="l04270"></a><span class="lineno"> 4270</span>  result = event_set-&gt;sync_wait(max_wait, err_code);</div>
+<div class="line"><a id="l04271" name="l04271"></a><span class="lineno"> 4271</span>  <span class="keywordflow">if</span> (!result)</div>
+<div class="line"><a id="l04272" name="l04272"></a><span class="lineno"> 4272</span>  {</div>
+<div class="line"><a id="l04273" name="l04273"></a><span class="lineno"> 4273</span>    <span class="keywordflow">if</span> (*err_code == <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ae643fd244bd1d6b483295cb9f356b0ae">error::Code::S_EVENT_SET_CLOSED</a>)</div>
+<div class="line"><a id="l04274" name="l04274"></a><span class="lineno"> 4274</span>    {</div>
+<div class="line"><a id="l04275" name="l04275"></a><span class="lineno"> 4275</span>      <span class="comment">// It&#39;s unlikely, but I guess someone could have destroyed Node during the wait (we do allow that during sleep).</span></div>
+<div class="line"><a id="l04276" name="l04276"></a><span class="lineno"> 4276</span>      *err_code = <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>;</div>
+<div class="line"><a id="l04277" name="l04277"></a><span class="lineno"> 4277</span>    }</div>
+<div class="line"><a id="l04278" name="l04278"></a><span class="lineno"> 4278</span>    <span class="keywordflow">else</span></div>
+<div class="line"><a id="l04279" name="l04279"></a><span class="lineno"> 4279</span>    {</div>
+<div class="line"><a id="l04280" name="l04280"></a><span class="lineno"> 4280</span>      <span class="comment">// This is quite common and is analogous to POSIX&#39;s EINTR semantics (signal interrupted the blocking call).</span></div>
+<div class="line"><a id="l04281" name="l04281"></a><span class="lineno"> 4281</span>      assert(*err_code == <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab92ec3b2b78d74acf0fda0786f601df5">error::Code::S_WAIT_INTERRUPTED</a>);</div>
+<div class="line"><a id="l04282" name="l04282"></a><span class="lineno"> 4282</span>    }</div>
 <div class="line"><a id="l04283" name="l04283"></a><span class="lineno"> 4283</span> </div>
-<div class="line"><a id="l04284" name="l04284"></a><span class="lineno"> 4284</span>  <span class="comment">// OK; either that returned 1 event, or 0 events (timeout).</span></div>
-<div class="line"><a id="l04285" name="l04285"></a><span class="lineno"> 4285</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> ready = event_set-&gt;events_detected(err_code);</div>
-<div class="line"><a id="l04286" name="l04286"></a><span class="lineno"> 4286</span>  <span class="comment">/* Node had not been destroyed by the time sync_wait() finished, and we don&#39;t allow simultaneous</span></div>
-<div class="line"><a id="l04287" name="l04287"></a><span class="lineno"> 4287</span><span class="comment">   * ~Node() outside a blocking sleep (see notes in class Node doc header).  The only way this</span></div>
-<div class="line"><a id="l04288" name="l04288"></a><span class="lineno"> 4288</span><span class="comment">   * failed is if Event_set was closed, and that could only happen if Node was destroyed. */</span></div>
-<div class="line"><a id="l04289" name="l04289"></a><span class="lineno"> 4289</span>  assert(!*err_code);</div>
-<div class="line"><a id="l04290" name="l04290"></a><span class="lineno"> 4290</span> </div>
-<div class="line"><a id="l04291" name="l04291"></a><span class="lineno"> 4291</span>  <span class="keywordflow">if</span> (ready)</div>
-<div class="line"><a id="l04292" name="l04292"></a><span class="lineno"> 4292</span>  {</div>
-<div class="line"><a id="l04293" name="l04293"></a><span class="lineno"> 4293</span>    <span class="comment">/* Didn&#39;t time out; socket is Writable.  However, that does not mean it&#39;s Writable for &quot;good&quot;</span></div>
-<div class="line"><a id="l04294" name="l04294"></a><span class="lineno"> 4294</span><span class="comment">     * reasons.  If an error was encountered since the original non-blocking connect (e.g., RST</span></div>
-<div class="line"><a id="l04295" name="l04295"></a><span class="lineno"> 4295</span><span class="comment">     * received; or handshake timeout expired), then it is now Writable, but any operation like</span></div>
-<div class="line"><a id="l04296" name="l04296"></a><span class="lineno"> 4296</span><span class="comment">     * send() or receive() will immediately yield an error.  If that is the case,</span></div>
-<div class="line"><a id="l04297" name="l04297"></a><span class="lineno"> 4297</span><span class="comment">     * close_connection_immediately() has set user-visible state to S_CLOSED.  So let&#39;s check for</span></div>
-<div class="line"><a id="l04298" name="l04298"></a><span class="lineno"> 4298</span><span class="comment">     * it and return an error in that case.</span></div>
-<div class="line"><a id="l04299" name="l04299"></a><span class="lineno"> 4299</span><span class="comment">     *</span></div>
-<div class="line"><a id="l04300" name="l04300"></a><span class="lineno"> 4300</span><span class="comment">     * We could also not; pretend socket is ready and let user discover error when trying to</span></div>
-<div class="line"><a id="l04301" name="l04301"></a><span class="lineno"> 4301</span><span class="comment">     * transmit.  However it seems like a good property to help him out. */</span></div>
-<div class="line"><a id="l04302" name="l04302"></a><span class="lineno"> 4302</span> </div>
-<div class="line"><a id="l04303" name="l04303"></a><span class="lineno"> 4303</span>    <span class="keywordflow">if</span> (sock-&gt;state() == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>)</div>
-<div class="line"><a id="l04304" name="l04304"></a><span class="lineno"> 4304</span>    {</div>
-<div class="line"><a id="l04305" name="l04305"></a><span class="lineno"> 4305</span>      <span class="comment">// No need to cleanup socket; it is already closed.</span></div>
-<div class="line"><a id="l04306" name="l04306"></a><span class="lineno"> 4306</span> </div>
-<div class="line"><a id="l04307" name="l04307"></a><span class="lineno"> 4307</span>      <span class="comment">// Return error as above.</span></div>
-<div class="line"><a id="l04308" name="l04308"></a><span class="lineno"> 4308</span>      *err_code = sock-&gt;m_disconnect_cause; <span class="comment">// No need to lock; m_disconnect_cause set and can&#39;t change later.</span></div>
-<div class="line"><a id="l04309" name="l04309"></a><span class="lineno"> 4309</span>      <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>();</div>
-<div class="line"><a id="l04310" name="l04310"></a><span class="lineno"> 4310</span>    }</div>
-<div class="line"><a id="l04311" name="l04311"></a><span class="lineno"> 4311</span>    <span class="comment">// else it&#39;s probably really ready for action.</span></div>
+<div class="line"><a id="l04284" name="l04284"></a><span class="lineno"> 4284</span>    <span class="comment">// Clean up (as discussed above).</span></div>
+<div class="line"><a id="l04285" name="l04285"></a><span class="lineno"> 4285</span>    sock-&gt;close_abruptly(&amp;dummy_prevents_throw); <span class="comment">// Eat any error; user doesn&#39;t care.</span></div>
+<div class="line"><a id="l04286" name="l04286"></a><span class="lineno"> 4286</span>    <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>(); <span class="comment">// *err_code is set.</span></div>
+<div class="line"><a id="l04287" name="l04287"></a><span class="lineno"> 4287</span>  } <span class="comment">// if (sync_wait() failed)</span></div>
+<div class="line"><a id="l04288" name="l04288"></a><span class="lineno"> 4288</span>  <span class="comment">// else we know event_set is still open, and sync_wait() succeeded.</span></div>
+<div class="line"><a id="l04289" name="l04289"></a><span class="lineno"> 4289</span> </div>
+<div class="line"><a id="l04290" name="l04290"></a><span class="lineno"> 4290</span>  <span class="comment">// OK; either that returned 1 event, or 0 events (timeout).</span></div>
+<div class="line"><a id="l04291" name="l04291"></a><span class="lineno"> 4291</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> ready = event_set-&gt;events_detected(err_code);</div>
+<div class="line"><a id="l04292" name="l04292"></a><span class="lineno"> 4292</span>  <span class="comment">/* Node had not been destroyed by the time sync_wait() finished, and we don&#39;t allow simultaneous</span></div>
+<div class="line"><a id="l04293" name="l04293"></a><span class="lineno"> 4293</span><span class="comment">   * ~Node() outside a blocking sleep (see notes in class Node doc header).  The only way this</span></div>
+<div class="line"><a id="l04294" name="l04294"></a><span class="lineno"> 4294</span><span class="comment">   * failed is if Event_set was closed, and that could only happen if Node was destroyed. */</span></div>
+<div class="line"><a id="l04295" name="l04295"></a><span class="lineno"> 4295</span>  assert(!*err_code);</div>
+<div class="line"><a id="l04296" name="l04296"></a><span class="lineno"> 4296</span> </div>
+<div class="line"><a id="l04297" name="l04297"></a><span class="lineno"> 4297</span>  <span class="keywordflow">if</span> (ready)</div>
+<div class="line"><a id="l04298" name="l04298"></a><span class="lineno"> 4298</span>  {</div>
+<div class="line"><a id="l04299" name="l04299"></a><span class="lineno"> 4299</span>    <span class="comment">/* Didn&#39;t time out; socket is Writable.  However, that does not mean it&#39;s Writable for &quot;good&quot;</span></div>
+<div class="line"><a id="l04300" name="l04300"></a><span class="lineno"> 4300</span><span class="comment">     * reasons.  If an error was encountered since the original non-blocking connect (e.g., RST</span></div>
+<div class="line"><a id="l04301" name="l04301"></a><span class="lineno"> 4301</span><span class="comment">     * received; or handshake timeout expired), then it is now Writable, but any operation like</span></div>
+<div class="line"><a id="l04302" name="l04302"></a><span class="lineno"> 4302</span><span class="comment">     * send() or receive() will immediately yield an error.  If that is the case,</span></div>
+<div class="line"><a id="l04303" name="l04303"></a><span class="lineno"> 4303</span><span class="comment">     * close_connection_immediately() has set user-visible state to S_CLOSED.  So let&#39;s check for</span></div>
+<div class="line"><a id="l04304" name="l04304"></a><span class="lineno"> 4304</span><span class="comment">     * it and return an error in that case.</span></div>
+<div class="line"><a id="l04305" name="l04305"></a><span class="lineno"> 4305</span><span class="comment">     *</span></div>
+<div class="line"><a id="l04306" name="l04306"></a><span class="lineno"> 4306</span><span class="comment">     * We could also not; pretend socket is ready and let user discover error when trying to</span></div>
+<div class="line"><a id="l04307" name="l04307"></a><span class="lineno"> 4307</span><span class="comment">     * transmit.  However it seems like a good property to help him out. */</span></div>
+<div class="line"><a id="l04308" name="l04308"></a><span class="lineno"> 4308</span> </div>
+<div class="line"><a id="l04309" name="l04309"></a><span class="lineno"> 4309</span>    <span class="keywordflow">if</span> (sock-&gt;state() == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>)</div>
+<div class="line"><a id="l04310" name="l04310"></a><span class="lineno"> 4310</span>    {</div>
+<div class="line"><a id="l04311" name="l04311"></a><span class="lineno"> 4311</span>      <span class="comment">// No need to cleanup socket; it is already closed.</span></div>
 <div class="line"><a id="l04312" name="l04312"></a><span class="lineno"> 4312</span> </div>
-<div class="line"><a id="l04313" name="l04313"></a><span class="lineno"> 4313</span>    <span class="keywordflow">return</span> sock; <span class="comment">// *err_code is success.</span></div>
-<div class="line"><a id="l04314" name="l04314"></a><span class="lineno"> 4314</span>  }</div>
-<div class="line"><a id="l04315" name="l04315"></a><span class="lineno"> 4315</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l04316" name="l04316"></a><span class="lineno"> 4316</span> </div>
-<div class="line"><a id="l04317" name="l04317"></a><span class="lineno"> 4317</span>  <span class="comment">// Timed out!  Clean up socket, as above, and return null with a specific error (as advertised).</span></div>
-<div class="line"><a id="l04318" name="l04318"></a><span class="lineno"> 4318</span>  sock-&gt;close_abruptly(&amp;dummy_prevents_throw);</div>
-<div class="line"><a id="l04319" name="l04319"></a><span class="lineno"> 4319</span>  *err_code = <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab835895723a7d71c964b84e0f0b78c3c">error::Code::S_WAIT_USER_TIMEOUT</a>;</div>
-<div class="line"><a id="l04320" name="l04320"></a><span class="lineno"> 4320</span>  <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>();</div>
-<div class="line"><a id="l04321" name="l04321"></a><span class="lineno"> 4321</span>} <span class="comment">// Node::sync_connect_impl()</span></div>
+<div class="line"><a id="l04313" name="l04313"></a><span class="lineno"> 4313</span>      <span class="comment">// Return error as above.</span></div>
+<div class="line"><a id="l04314" name="l04314"></a><span class="lineno"> 4314</span>      *err_code = sock-&gt;m_disconnect_cause; <span class="comment">// No need to lock; m_disconnect_cause set and can&#39;t change later.</span></div>
+<div class="line"><a id="l04315" name="l04315"></a><span class="lineno"> 4315</span>      <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>();</div>
+<div class="line"><a id="l04316" name="l04316"></a><span class="lineno"> 4316</span>    }</div>
+<div class="line"><a id="l04317" name="l04317"></a><span class="lineno"> 4317</span>    <span class="comment">// else it&#39;s probably really ready for action.</span></div>
+<div class="line"><a id="l04318" name="l04318"></a><span class="lineno"> 4318</span> </div>
+<div class="line"><a id="l04319" name="l04319"></a><span class="lineno"> 4319</span>    <span class="keywordflow">return</span> sock; <span class="comment">// *err_code is success.</span></div>
+<div class="line"><a id="l04320" name="l04320"></a><span class="lineno"> 4320</span>  }</div>
+<div class="line"><a id="l04321" name="l04321"></a><span class="lineno"> 4321</span>  <span class="comment">// else</span></div>
 <div class="line"><a id="l04322" name="l04322"></a><span class="lineno"> 4322</span> </div>
-<div class="line"><a id="l04323" name="l04323"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ac1485c07049d4bee70ad4ef2fc07bf12"> 4323</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac1485c07049d4bee70ad4ef2fc07bf12">Node::setup_connection_timers</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keywordtype">bool</span> initial)</div>
-<div class="line"><a id="l04324" name="l04324"></a><span class="lineno"> 4324</span>{</div>
-<div class="line"><a id="l04325" name="l04325"></a><span class="lineno"> 4325</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667">util::schedule_task_from_now</a>;</div>
-<div class="line"><a id="l04326" name="l04326"></a><span class="lineno"> 4326</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1util.html#a79a0f182b38898771d669475d3e963a4">util::scheduled_task_fired</a>;</div>
-<div class="line"><a id="l04327" name="l04327"></a><span class="lineno"> 4327</span>  <span class="keyword">using </span>boost::chrono::microseconds;</div>
-<div class="line"><a id="l04328" name="l04328"></a><span class="lineno"> 4328</span>  <span class="keyword">using </span>boost::chrono::duration_cast;</div>
-<div class="line"><a id="l04329" name="l04329"></a><span class="lineno"> 4329</span>  <span class="keyword">using </span>boost::weak_ptr;</div>
-<div class="line"><a id="l04330" name="l04330"></a><span class="lineno"> 4330</span> </div>
-<div class="line"><a id="l04331" name="l04331"></a><span class="lineno"> 4331</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l04332" name="l04332"></a><span class="lineno"> 4332</span> </div>
-<div class="line"><a id="l04333" name="l04333"></a><span class="lineno"> 4333</span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> rexmit_from_now = sock-&gt;opt(sock-&gt;m_opts.m_st_connect_retransmit_period);</div>
-<div class="line"><a id="l04334" name="l04334"></a><span class="lineno"> 4334</span> </div>
-<div class="line"><a id="l04335" name="l04335"></a><span class="lineno"> 4335</span>  <span class="comment">// Finalize the retransmit scheduled task firing time; and update the # retries statistic.</span></div>
-<div class="line"><a id="l04336" name="l04336"></a><span class="lineno"> 4336</span>  <span class="keywordflow">if</span> (!initial)</div>
-<div class="line"><a id="l04337" name="l04337"></a><span class="lineno"> 4337</span>  {</div>
-<div class="line"><a id="l04338" name="l04338"></a><span class="lineno"> 4338</span>    assert(<a class="code hl_function" href="namespaceflow_1_1util.html#a79a0f182b38898771d669475d3e963a4">scheduled_task_fired</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock-&gt;m_init_rexmit_scheduled_task));</div>
-<div class="line"><a id="l04339" name="l04339"></a><span class="lineno"> 4339</span> </div>
-<div class="line"><a id="l04340" name="l04340"></a><span class="lineno"> 4340</span>    ++sock-&gt;m_init_rexmit_count;</div>
-<div class="line"><a id="l04341" name="l04341"></a><span class="lineno"> 4341</span>    <span class="comment">/* This is a bit more precise than leaving rexmit_from_now alone, as it counts from when firing was</span></div>
-<div class="line"><a id="l04342" name="l04342"></a><span class="lineno"> 4342</span><span class="comment">     * actually scheduled, vs. when the timer was actually triggered by boost.asio.  The 2nd addend should be a bit</span></div>
-<div class="line"><a id="l04343" name="l04343"></a><span class="lineno"> 4343</span><span class="comment">     * negative and thus decrease rexmit_from_now a bit. */</span></div>
-<div class="line"><a id="l04344" name="l04344"></a><span class="lineno"> 4344</span>    rexmit_from_now += <a class="code hl_function" href="namespaceflow_1_1util.html#a9a0812b36dc401a3b2ac5e60e2a070d0">scheduled_task_fires_from_now_or_canceled</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock-&gt;m_init_rexmit_scheduled_task);</div>
-<div class="line"><a id="l04345" name="l04345"></a><span class="lineno"> 4345</span>    <span class="comment">/* @todo RFC 6298 mandates that this must be doubled after each attempt instead of keeping</span></div>
-<div class="line"><a id="l04346" name="l04346"></a><span class="lineno"> 4346</span><span class="comment">     * the same value.  Doesn&#39;t mean we should follow it. */</span></div>
-<div class="line"><a id="l04347" name="l04347"></a><span class="lineno"> 4347</span>  }</div>
-<div class="line"><a id="l04348" name="l04348"></a><span class="lineno"> 4348</span> </div>
-<div class="line"><a id="l04349" name="l04349"></a><span class="lineno"> 4349</span>  <span class="comment">// Firing time is set; start timer.  Call that body when task fires, unless it is first canceled.</span></div>
-<div class="line"><a id="l04350" name="l04350"></a><span class="lineno"> 4350</span>  sock-&gt;m_init_rexmit_scheduled_task</div>
-<div class="line"><a id="l04351" name="l04351"></a><span class="lineno"> 4351</span>    = <a class="code hl_function" href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667">schedule_task_from_now</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), rexmit_from_now, <span class="keyword">true</span>, &amp;m_task_engine,</div>
-<div class="line"><a id="l04352" name="l04352"></a><span class="lineno"> 4352</span>                             [<span class="keyword">this</span>, socket_id,</div>
-<div class="line"><a id="l04353" name="l04353"></a><span class="lineno"> 4353</span>                              sock_observer = weak_ptr&lt;Peer_socket&gt;(sock)]</div>
-<div class="line"><a id="l04354" name="l04354"></a><span class="lineno"> 4354</span>                               (<span class="keywordtype">bool</span>)</div>
-<div class="line"><a id="l04355" name="l04355"></a><span class="lineno"> 4355</span>  {</div>
-<div class="line"><a id="l04356" name="l04356"></a><span class="lineno"> 4356</span>    <span class="keyword">auto</span> sock = sock_observer.lock();</div>
-<div class="line"><a id="l04357" name="l04357"></a><span class="lineno"> 4357</span>    <span class="keywordflow">if</span> (sock)</div>
-<div class="line"><a id="l04358" name="l04358"></a><span class="lineno"> 4358</span>    {</div>
-<div class="line"><a id="l04359" name="l04359"></a><span class="lineno"> 4359</span>      handle_connection_rexmit_timer_event(socket_id, sock);</div>
-<div class="line"><a id="l04360" name="l04360"></a><span class="lineno"> 4360</span>    }</div>
-<div class="line"><a id="l04361" name="l04361"></a><span class="lineno"> 4361</span>    <span class="comment">// else { Possible or not, allow for this possibility for maintainability. }</span></div>
-<div class="line"><a id="l04362" name="l04362"></a><span class="lineno"> 4362</span>  });</div>
-<div class="line"><a id="l04363" name="l04363"></a><span class="lineno"> 4363</span> </div>
-<div class="line"><a id="l04364" name="l04364"></a><span class="lineno"> 4364</span>  <span class="comment">// Also set up the timeout that will stop these retries from happening.</span></div>
-<div class="line"><a id="l04365" name="l04365"></a><span class="lineno"> 4365</span>  <span class="keywordflow">if</span> (initial)</div>
-<div class="line"><a id="l04366" name="l04366"></a><span class="lineno"> 4366</span>  {</div>
-<div class="line"><a id="l04367" name="l04367"></a><span class="lineno"> 4367</span>    sock-&gt;m_connection_timeout_scheduled_task</div>
-<div class="line"><a id="l04368" name="l04368"></a><span class="lineno"> 4368</span>      = <a class="code hl_function" href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667">schedule_task_from_now</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(),</div>
-<div class="line"><a id="l04369" name="l04369"></a><span class="lineno"> 4369</span>                               sock-&gt;opt(sock-&gt;m_opts.m_st_connect_retransmit_timeout),</div>
-<div class="line"><a id="l04370" name="l04370"></a><span class="lineno"> 4370</span>                               <span class="keyword">true</span>, &amp;m_task_engine,</div>
-<div class="line"><a id="l04371" name="l04371"></a><span class="lineno"> 4371</span>                               [<span class="keyword">this</span>, socket_id,</div>
-<div class="line"><a id="l04372" name="l04372"></a><span class="lineno"> 4372</span>                                sock_observer = weak_ptr&lt;Peer_socket&gt;(sock)]</div>
-<div class="line"><a id="l04373" name="l04373"></a><span class="lineno"> 4373</span>                                 (<span class="keywordtype">bool</span>)</div>
-<div class="line"><a id="l04374" name="l04374"></a><span class="lineno"> 4374</span>   {</div>
-<div class="line"><a id="l04375" name="l04375"></a><span class="lineno"> 4375</span>      <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l04376" name="l04376"></a><span class="lineno"> 4376</span> </div>
-<div class="line"><a id="l04377" name="l04377"></a><span class="lineno"> 4377</span>      auto sock = sock_observer.lock();</div>
-<div class="line"><a id="l04378" name="l04378"></a><span class="lineno"> 4378</span>      if (!sock)</div>
-<div class="line"><a id="l04379" name="l04379"></a><span class="lineno"> 4379</span>      {</div>
-<div class="line"><a id="l04380" name="l04380"></a><span class="lineno"> 4380</span>        return; <span class="comment">// Possible or not, allow for this possibility for maintainability.</span></div>
-<div class="line"><a id="l04381" name="l04381"></a><span class="lineno"> 4381</span>      }</div>
-<div class="line"><a id="l04382" name="l04382"></a><span class="lineno"> 4382</span>      <span class="comment">// else</span></div>
-<div class="line"><a id="l04383" name="l04383"></a><span class="lineno"> 4383</span> </div>
-<div class="line"><a id="l04384" name="l04384"></a><span class="lineno"> 4384</span>      <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Connection handshake timeout timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] has been triggered; was on &quot;</span></div>
-<div class="line"><a id="l04385" name="l04385"></a><span class="lineno"> 4385</span>                    <span class="stringliteral">&quot;attempt [&quot;</span> &lt;&lt; (sock-&gt;m_init_rexmit_count + 1) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l04386" name="l04386"></a><span class="lineno"> 4386</span> </div>
-<div class="line"><a id="l04387" name="l04387"></a><span class="lineno"> 4387</span>      assert((sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">Peer_socket::Int_state::S_SYN_SENT</a>)</div>
-<div class="line"><a id="l04388" name="l04388"></a><span class="lineno"> 4388</span>             || (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">Peer_socket::Int_state::S_SYN_RCVD</a>));</div>
+<div class="line"><a id="l04323" name="l04323"></a><span class="lineno"> 4323</span>  <span class="comment">// Timed out!  Clean up socket, as above, and return null with a specific error (as advertised).</span></div>
+<div class="line"><a id="l04324" name="l04324"></a><span class="lineno"> 4324</span>  sock-&gt;close_abruptly(&amp;dummy_prevents_throw);</div>
+<div class="line"><a id="l04325" name="l04325"></a><span class="lineno"> 4325</span>  *err_code = <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482ab835895723a7d71c964b84e0f0b78c3c">error::Code::S_WAIT_USER_TIMEOUT</a>;</div>
+<div class="line"><a id="l04326" name="l04326"></a><span class="lineno"> 4326</span>  <span class="keywordflow">return</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>();</div>
+<div class="line"><a id="l04327" name="l04327"></a><span class="lineno"> 4327</span>} <span class="comment">// Node::sync_connect_impl()</span></div>
+<div class="line"><a id="l04328" name="l04328"></a><span class="lineno"> 4328</span> </div>
+<div class="line"><a id="l04329" name="l04329"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ac1485c07049d4bee70ad4ef2fc07bf12"> 4329</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac1485c07049d4bee70ad4ef2fc07bf12">Node::setup_connection_timers</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keywordtype">bool</span> initial)</div>
+<div class="line"><a id="l04330" name="l04330"></a><span class="lineno"> 4330</span>{</div>
+<div class="line"><a id="l04331" name="l04331"></a><span class="lineno"> 4331</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667">util::schedule_task_from_now</a>;</div>
+<div class="line"><a id="l04332" name="l04332"></a><span class="lineno"> 4332</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1util.html#a79a0f182b38898771d669475d3e963a4">util::scheduled_task_fired</a>;</div>
+<div class="line"><a id="l04333" name="l04333"></a><span class="lineno"> 4333</span>  <span class="keyword">using </span>boost::chrono::microseconds;</div>
+<div class="line"><a id="l04334" name="l04334"></a><span class="lineno"> 4334</span>  <span class="keyword">using </span>boost::chrono::duration_cast;</div>
+<div class="line"><a id="l04335" name="l04335"></a><span class="lineno"> 4335</span>  <span class="keyword">using </span>boost::weak_ptr;</div>
+<div class="line"><a id="l04336" name="l04336"></a><span class="lineno"> 4336</span> </div>
+<div class="line"><a id="l04337" name="l04337"></a><span class="lineno"> 4337</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l04338" name="l04338"></a><span class="lineno"> 4338</span> </div>
+<div class="line"><a id="l04339" name="l04339"></a><span class="lineno"> 4339</span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> rexmit_from_now = sock-&gt;opt(sock-&gt;m_opts.m_st_connect_retransmit_period);</div>
+<div class="line"><a id="l04340" name="l04340"></a><span class="lineno"> 4340</span> </div>
+<div class="line"><a id="l04341" name="l04341"></a><span class="lineno"> 4341</span>  <span class="comment">// Finalize the retransmit scheduled task firing time; and update the # retries statistic.</span></div>
+<div class="line"><a id="l04342" name="l04342"></a><span class="lineno"> 4342</span>  <span class="keywordflow">if</span> (!initial)</div>
+<div class="line"><a id="l04343" name="l04343"></a><span class="lineno"> 4343</span>  {</div>
+<div class="line"><a id="l04344" name="l04344"></a><span class="lineno"> 4344</span>    assert(<a class="code hl_function" href="namespaceflow_1_1util.html#a79a0f182b38898771d669475d3e963a4">scheduled_task_fired</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock-&gt;m_init_rexmit_scheduled_task));</div>
+<div class="line"><a id="l04345" name="l04345"></a><span class="lineno"> 4345</span> </div>
+<div class="line"><a id="l04346" name="l04346"></a><span class="lineno"> 4346</span>    ++sock-&gt;m_init_rexmit_count;</div>
+<div class="line"><a id="l04347" name="l04347"></a><span class="lineno"> 4347</span>    <span class="comment">/* This is a bit more precise than leaving rexmit_from_now alone, as it counts from when firing was</span></div>
+<div class="line"><a id="l04348" name="l04348"></a><span class="lineno"> 4348</span><span class="comment">     * actually scheduled, vs. when the timer was actually triggered by boost.asio.  The 2nd addend should be a bit</span></div>
+<div class="line"><a id="l04349" name="l04349"></a><span class="lineno"> 4349</span><span class="comment">     * negative and thus decrease rexmit_from_now a bit. */</span></div>
+<div class="line"><a id="l04350" name="l04350"></a><span class="lineno"> 4350</span>    rexmit_from_now += <a class="code hl_function" href="namespaceflow_1_1util.html#a9a0812b36dc401a3b2ac5e60e2a070d0">scheduled_task_fires_from_now_or_canceled</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock-&gt;m_init_rexmit_scheduled_task);</div>
+<div class="line"><a id="l04351" name="l04351"></a><span class="lineno"> 4351</span>    <span class="comment">/* @todo RFC 6298 mandates that this must be doubled after each attempt instead of keeping</span></div>
+<div class="line"><a id="l04352" name="l04352"></a><span class="lineno"> 4352</span><span class="comment">     * the same value.  Doesn&#39;t mean we should follow it. */</span></div>
+<div class="line"><a id="l04353" name="l04353"></a><span class="lineno"> 4353</span>  }</div>
+<div class="line"><a id="l04354" name="l04354"></a><span class="lineno"> 4354</span> </div>
+<div class="line"><a id="l04355" name="l04355"></a><span class="lineno"> 4355</span>  <span class="comment">// Firing time is set; start timer.  Call that body when task fires, unless it is first canceled.</span></div>
+<div class="line"><a id="l04356" name="l04356"></a><span class="lineno"> 4356</span>  sock-&gt;m_init_rexmit_scheduled_task</div>
+<div class="line"><a id="l04357" name="l04357"></a><span class="lineno"> 4357</span>    = <a class="code hl_function" href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667">schedule_task_from_now</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), rexmit_from_now, <span class="keyword">true</span>, &amp;m_task_engine,</div>
+<div class="line"><a id="l04358" name="l04358"></a><span class="lineno"> 4358</span>                             [<span class="keyword">this</span>, socket_id,</div>
+<div class="line"><a id="l04359" name="l04359"></a><span class="lineno"> 4359</span>                              sock_observer = weak_ptr&lt;Peer_socket&gt;(sock)]</div>
+<div class="line"><a id="l04360" name="l04360"></a><span class="lineno"> 4360</span>                               (<span class="keywordtype">bool</span>)</div>
+<div class="line"><a id="l04361" name="l04361"></a><span class="lineno"> 4361</span>  {</div>
+<div class="line"><a id="l04362" name="l04362"></a><span class="lineno"> 4362</span>    <span class="keyword">auto</span> sock = sock_observer.lock();</div>
+<div class="line"><a id="l04363" name="l04363"></a><span class="lineno"> 4363</span>    <span class="keywordflow">if</span> (sock)</div>
+<div class="line"><a id="l04364" name="l04364"></a><span class="lineno"> 4364</span>    {</div>
+<div class="line"><a id="l04365" name="l04365"></a><span class="lineno"> 4365</span>      handle_connection_rexmit_timer_event(socket_id, sock);</div>
+<div class="line"><a id="l04366" name="l04366"></a><span class="lineno"> 4366</span>    }</div>
+<div class="line"><a id="l04367" name="l04367"></a><span class="lineno"> 4367</span>    <span class="comment">// else { Possible or not, allow for this possibility for maintainability. }</span></div>
+<div class="line"><a id="l04368" name="l04368"></a><span class="lineno"> 4368</span>  });</div>
+<div class="line"><a id="l04369" name="l04369"></a><span class="lineno"> 4369</span> </div>
+<div class="line"><a id="l04370" name="l04370"></a><span class="lineno"> 4370</span>  <span class="comment">// Also set up the timeout that will stop these retries from happening.</span></div>
+<div class="line"><a id="l04371" name="l04371"></a><span class="lineno"> 4371</span>  <span class="keywordflow">if</span> (initial)</div>
+<div class="line"><a id="l04372" name="l04372"></a><span class="lineno"> 4372</span>  {</div>
+<div class="line"><a id="l04373" name="l04373"></a><span class="lineno"> 4373</span>    sock-&gt;m_connection_timeout_scheduled_task</div>
+<div class="line"><a id="l04374" name="l04374"></a><span class="lineno"> 4374</span>      = <a class="code hl_function" href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667">schedule_task_from_now</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(),</div>
+<div class="line"><a id="l04375" name="l04375"></a><span class="lineno"> 4375</span>                               sock-&gt;opt(sock-&gt;m_opts.m_st_connect_retransmit_timeout),</div>
+<div class="line"><a id="l04376" name="l04376"></a><span class="lineno"> 4376</span>                               <span class="keyword">true</span>, &amp;m_task_engine,</div>
+<div class="line"><a id="l04377" name="l04377"></a><span class="lineno"> 4377</span>                               [<span class="keyword">this</span>, socket_id,</div>
+<div class="line"><a id="l04378" name="l04378"></a><span class="lineno"> 4378</span>                                sock_observer = weak_ptr&lt;Peer_socket&gt;(sock)]</div>
+<div class="line"><a id="l04379" name="l04379"></a><span class="lineno"> 4379</span>                                 (<span class="keywordtype">bool</span>)</div>
+<div class="line"><a id="l04380" name="l04380"></a><span class="lineno"> 4380</span>   {</div>
+<div class="line"><a id="l04381" name="l04381"></a><span class="lineno"> 4381</span>      <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l04382" name="l04382"></a><span class="lineno"> 4382</span> </div>
+<div class="line"><a id="l04383" name="l04383"></a><span class="lineno"> 4383</span>      auto sock = sock_observer.lock();</div>
+<div class="line"><a id="l04384" name="l04384"></a><span class="lineno"> 4384</span>      if (!sock)</div>
+<div class="line"><a id="l04385" name="l04385"></a><span class="lineno"> 4385</span>      {</div>
+<div class="line"><a id="l04386" name="l04386"></a><span class="lineno"> 4386</span>        return; <span class="comment">// Possible or not, allow for this possibility for maintainability.</span></div>
+<div class="line"><a id="l04387" name="l04387"></a><span class="lineno"> 4387</span>      }</div>
+<div class="line"><a id="l04388" name="l04388"></a><span class="lineno"> 4388</span>      <span class="comment">// else</span></div>
 <div class="line"><a id="l04389" name="l04389"></a><span class="lineno"> 4389</span> </div>
-<div class="line"><a id="l04390" name="l04390"></a><span class="lineno"> 4390</span>      <span class="comment">// Timeout.  Give up.  Send RST, in case they do come to their senses -- but it&#39;s too late for us.</span></div>
-<div class="line"><a id="l04391" name="l04391"></a><span class="lineno"> 4391</span> </div>
-<div class="line"><a id="l04392" name="l04392"></a><span class="lineno"> 4392</span>      <span class="comment">/* Close connection in our structures and inform user.  Pre-conditions</span></div>
-<div class="line"><a id="l04393" name="l04393"></a><span class="lineno"> 4393</span><span class="comment">       * assumed by call: sock in m_socks and sock-&gt;state() == S_OPEN (yes, since m_int_state ==</span></div>
-<div class="line"><a id="l04394" name="l04394"></a><span class="lineno"> 4394</span><span class="comment">       * S_SYN_SENT/RCVD); err_code contains the reason for the close (yes). */</span></div>
-<div class="line"><a id="l04395" name="l04395"></a><span class="lineno"> 4395</span>      rst_and_close_connection_immediately(socket_id, sock, <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a074451c0bc9f5ae37e0c8fbe82677090">error::Code::S_CONN_TIMEOUT</a>, <span class="keyword">false</span>);</div>
-<div class="line"><a id="l04396" name="l04396"></a><span class="lineno"> 4396</span>      <span class="comment">/* ^-- defer_delta_check == false: for similar reason as when calling send_worker() from</span></div>
-<div class="line"><a id="l04397" name="l04397"></a><span class="lineno"> 4397</span><span class="comment">       * send_worker_check_state(). */</span></div>
-<div class="line"><a id="l04398" name="l04398"></a><span class="lineno"> 4398</span>    });</div>
-<div class="line"><a id="l04399" name="l04399"></a><span class="lineno"> 4399</span>  } <span class="comment">// if (initial)</span></div>
-<div class="line"><a id="l04400" name="l04400"></a><span class="lineno"> 4400</span>} <span class="comment">// Node::setup_connection_timers()</span></div>
-<div class="line"><a id="l04401" name="l04401"></a><span class="lineno"> 4401</span> </div>
-<div class="line"><a id="l04402" name="l04402"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#addd654cb6b1ccff34ddccbe5226be8f0"> 4402</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#addd654cb6b1ccff34ddccbe5226be8f0">Node::handle_connection_rexmit_timer_event</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
-<div class="line"><a id="l04403" name="l04403"></a><span class="lineno"> 4403</span>{</div>
-<div class="line"><a id="l04404" name="l04404"></a><span class="lineno"> 4404</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>;</div>
-<div class="line"><a id="l04405" name="l04405"></a><span class="lineno"> 4405</span> </div>
-<div class="line"><a id="l04406" name="l04406"></a><span class="lineno"> 4406</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l04390" name="l04390"></a><span class="lineno"> 4390</span>      <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Connection handshake timeout timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] has been triggered; was on &quot;</span></div>
+<div class="line"><a id="l04391" name="l04391"></a><span class="lineno"> 4391</span>                    <span class="stringliteral">&quot;attempt [&quot;</span> &lt;&lt; (sock-&gt;m_init_rexmit_count + 1) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l04392" name="l04392"></a><span class="lineno"> 4392</span> </div>
+<div class="line"><a id="l04393" name="l04393"></a><span class="lineno"> 4393</span>      assert((sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">Peer_socket::Int_state::S_SYN_SENT</a>)</div>
+<div class="line"><a id="l04394" name="l04394"></a><span class="lineno"> 4394</span>             || (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">Peer_socket::Int_state::S_SYN_RCVD</a>));</div>
+<div class="line"><a id="l04395" name="l04395"></a><span class="lineno"> 4395</span> </div>
+<div class="line"><a id="l04396" name="l04396"></a><span class="lineno"> 4396</span>      <span class="comment">// Timeout.  Give up.  Send RST, in case they do come to their senses -- but it&#39;s too late for us.</span></div>
+<div class="line"><a id="l04397" name="l04397"></a><span class="lineno"> 4397</span> </div>
+<div class="line"><a id="l04398" name="l04398"></a><span class="lineno"> 4398</span>      <span class="comment">/* Close connection in our structures and inform user.  Pre-conditions</span></div>
+<div class="line"><a id="l04399" name="l04399"></a><span class="lineno"> 4399</span><span class="comment">       * assumed by call: sock in m_socks and sock-&gt;state() == S_OPEN (yes, since m_int_state ==</span></div>
+<div class="line"><a id="l04400" name="l04400"></a><span class="lineno"> 4400</span><span class="comment">       * S_SYN_SENT/RCVD); err_code contains the reason for the close (yes). */</span></div>
+<div class="line"><a id="l04401" name="l04401"></a><span class="lineno"> 4401</span>      rst_and_close_connection_immediately(socket_id, sock, <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a074451c0bc9f5ae37e0c8fbe82677090">error::Code::S_CONN_TIMEOUT</a>, <span class="keyword">false</span>);</div>
+<div class="line"><a id="l04402" name="l04402"></a><span class="lineno"> 4402</span>      <span class="comment">/* ^-- defer_delta_check == false: for similar reason as when calling send_worker() from</span></div>
+<div class="line"><a id="l04403" name="l04403"></a><span class="lineno"> 4403</span><span class="comment">       * send_worker_check_state(). */</span></div>
+<div class="line"><a id="l04404" name="l04404"></a><span class="lineno"> 4404</span>    });</div>
+<div class="line"><a id="l04405" name="l04405"></a><span class="lineno"> 4405</span>  } <span class="comment">// if (initial)</span></div>
+<div class="line"><a id="l04406" name="l04406"></a><span class="lineno"> 4406</span>} <span class="comment">// Node::setup_connection_timers()</span></div>
 <div class="line"><a id="l04407" name="l04407"></a><span class="lineno"> 4407</span> </div>
-<div class="line"><a id="l04408" name="l04408"></a><span class="lineno"> 4408</span>  assert((sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">Peer_socket::Int_state::S_SYN_SENT</a>)</div>
-<div class="line"><a id="l04409" name="l04409"></a><span class="lineno"> 4409</span>         || (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">Peer_socket::Int_state::S_SYN_RCVD</a>));</div>
-<div class="line"><a id="l04410" name="l04410"></a><span class="lineno"> 4410</span> </div>
-<div class="line"><a id="l04411" name="l04411"></a><span class="lineno"> 4411</span>  <span class="comment">// Not an error (so not WARNING), but it&#39;s rare and interesting enough for INFO.</span></div>
-<div class="line"><a id="l04412" name="l04412"></a><span class="lineno"> 4412</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Connection handshake retransmit timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] triggered; was on &quot;</span></div>
-<div class="line"><a id="l04413" name="l04413"></a><span class="lineno"> 4413</span>                <span class="stringliteral">&quot;attempt [&quot;</span> &lt;&lt; (sock-&gt;m_init_rexmit_count + 1) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l04414" name="l04414"></a><span class="lineno"> 4414</span> </div>
-<div class="line"><a id="l04415" name="l04415"></a><span class="lineno"> 4415</span>  <span class="comment">// Try again.  Reproduce the SYN or SYN_ACK... but first set up the next timer.</span></div>
+<div class="line"><a id="l04408" name="l04408"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#addd654cb6b1ccff34ddccbe5226be8f0"> 4408</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#addd654cb6b1ccff34ddccbe5226be8f0">Node::handle_connection_rexmit_timer_event</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
+<div class="line"><a id="l04409" name="l04409"></a><span class="lineno"> 4409</span>{</div>
+<div class="line"><a id="l04410" name="l04410"></a><span class="lineno"> 4410</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>;</div>
+<div class="line"><a id="l04411" name="l04411"></a><span class="lineno"> 4411</span> </div>
+<div class="line"><a id="l04412" name="l04412"></a><span class="lineno"> 4412</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l04413" name="l04413"></a><span class="lineno"> 4413</span> </div>
+<div class="line"><a id="l04414" name="l04414"></a><span class="lineno"> 4414</span>  assert((sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">Peer_socket::Int_state::S_SYN_SENT</a>)</div>
+<div class="line"><a id="l04415" name="l04415"></a><span class="lineno"> 4415</span>         || (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">Peer_socket::Int_state::S_SYN_RCVD</a>));</div>
 <div class="line"><a id="l04416" name="l04416"></a><span class="lineno"> 4416</span> </div>
-<div class="line"><a id="l04417" name="l04417"></a><span class="lineno"> 4417</span>  <span class="comment">// Setup the next timer before sending packet for the same reason as in the original SYN/SYN_ACK-sending code.</span></div>
-<div class="line"><a id="l04418" name="l04418"></a><span class="lineno"> 4418</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac1485c07049d4bee70ad4ef2fc07bf12">setup_connection_timers</a>(<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>, sock, <span class="keyword">false</span>);</div>
-<div class="line"><a id="l04419" name="l04419"></a><span class="lineno"> 4419</span> </div>
-<div class="line"><a id="l04420" name="l04420"></a><span class="lineno"> 4420</span>  <span class="comment">/* Send packet.</span></div>
-<div class="line"><a id="l04421" name="l04421"></a><span class="lineno"> 4421</span><span class="comment">   * @todo More code reuse?  Or save the serialized version inside socket and resend here verbatim? */</span></div>
+<div class="line"><a id="l04417" name="l04417"></a><span class="lineno"> 4417</span>  <span class="comment">// Not an error (so not WARNING), but it&#39;s rare and interesting enough for INFO.</span></div>
+<div class="line"><a id="l04418" name="l04418"></a><span class="lineno"> 4418</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Connection handshake retransmit timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] triggered; was on &quot;</span></div>
+<div class="line"><a id="l04419" name="l04419"></a><span class="lineno"> 4419</span>                <span class="stringliteral">&quot;attempt [&quot;</span> &lt;&lt; (sock-&gt;m_init_rexmit_count + 1) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l04420" name="l04420"></a><span class="lineno"> 4420</span> </div>
+<div class="line"><a id="l04421" name="l04421"></a><span class="lineno"> 4421</span>  <span class="comment">// Try again.  Reproduce the SYN or SYN_ACK... but first set up the next timer.</span></div>
 <div class="line"><a id="l04422" name="l04422"></a><span class="lineno"> 4422</span> </div>
-<div class="line"><a id="l04423" name="l04423"></a><span class="lineno"> 4423</span>  <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Low_lvl_packet::Ptr</a> re_syn_base;</div>
-<div class="line"><a id="l04424" name="l04424"></a><span class="lineno"> 4424</span>  <span class="keywordflow">if</span> (sock-&gt;m_active_connect)</div>
-<div class="line"><a id="l04425" name="l04425"></a><span class="lineno"> 4425</span>  {</div>
-<div class="line"><a id="l04426" name="l04426"></a><span class="lineno"> 4426</span>    <span class="keyword">auto</span> syn = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a5bca5c11ac5a4763fed6ce146fe733e7">create_syn</a>(sock);</div>
-<div class="line"><a id="l04427" name="l04427"></a><span class="lineno"> 4427</span>    re_syn_base = <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(syn);</div>
-<div class="line"><a id="l04428" name="l04428"></a><span class="lineno"> 4428</span>  }</div>
-<div class="line"><a id="l04429" name="l04429"></a><span class="lineno"> 4429</span>  <span class="keywordflow">else</span></div>
-<div class="line"><a id="l04430" name="l04430"></a><span class="lineno"> 4430</span>  {</div>
-<div class="line"><a id="l04431" name="l04431"></a><span class="lineno"> 4431</span>    <span class="comment">// (Subtlety: As of this writing it wouldn&#39;t have changed since original SYN_ACK, but safe&gt;sorry.)</span></div>
-<div class="line"><a id="l04432" name="l04432"></a><span class="lineno"> 4432</span>    sock-&gt;m_rcv_last_sent_rcv_wnd = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">sock_rcv_wnd</a>(sock);</div>
-<div class="line"><a id="l04433" name="l04433"></a><span class="lineno"> 4433</span> </div>
-<div class="line"><a id="l04434" name="l04434"></a><span class="lineno"> 4434</span>    <span class="keyword">auto</span> syn_ack = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a6bcd840049c57150cdaa5c59d22c488b">create_syn_ack</a>(sock);</div>
-<div class="line"><a id="l04435" name="l04435"></a><span class="lineno"> 4435</span>    re_syn_base = <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(syn_ack);</div>
-<div class="line"><a id="l04436" name="l04436"></a><span class="lineno"> 4436</span>  }</div>
-<div class="line"><a id="l04437" name="l04437"></a><span class="lineno"> 4437</span> </div>
-<div class="line"><a id="l04438" name="l04438"></a><span class="lineno"> 4438</span>  <span class="comment">// Fill out common fields and asynchronously send packet.</span></div>
-<div class="line"><a id="l04439" name="l04439"></a><span class="lineno"> 4439</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">async_sock_low_lvl_packet_send_or_close_immediately</a>(sock, std::move(re_syn_base), <span class="keyword">false</span>))</div>
-<div class="line"><a id="l04440" name="l04440"></a><span class="lineno"> 4440</span>  {</div>
-<div class="line"><a id="l04441" name="l04441"></a><span class="lineno"> 4441</span>    <span class="comment">/* ^-- defer_delta_check == false: for similar reason as when calling send_worker() from</span></div>
-<div class="line"><a id="l04442" name="l04442"></a><span class="lineno"> 4442</span><span class="comment">     * send_worker_check_state(). */</span></div>
-<div class="line"><a id="l04443" name="l04443"></a><span class="lineno"> 4443</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l04444" name="l04444"></a><span class="lineno"> 4444</span>  }</div>
-<div class="line"><a id="l04445" name="l04445"></a><span class="lineno"> 4445</span>} <span class="comment">// Node::handle_connection_rexmit_timer_event()</span></div>
-<div class="line"><a id="l04446" name="l04446"></a><span class="lineno"> 4446</span> </div>
-<div class="line"><a id="l04447" name="l04447"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a3f9cf4d7160b3e27b3b0131fc4507ce7"> 4447</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a3f9cf4d7160b3e27b3b0131fc4507ce7">Node::cancel_timers</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
-<div class="line"><a id="l04448" name="l04448"></a><span class="lineno"> 4448</span>{</div>
-<div class="line"><a id="l04449" name="l04449"></a><span class="lineno"> 4449</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">util::scheduled_task_cancel</a>;</div>
-<div class="line"><a id="l04450" name="l04450"></a><span class="lineno"> 4450</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">util::Scheduled_task_handle</a>;</div>
-<div class="line"><a id="l04451" name="l04451"></a><span class="lineno"> 4451</span> </div>
-<div class="line"><a id="l04452" name="l04452"></a><span class="lineno"> 4452</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l04453" name="l04453"></a><span class="lineno"> 4453</span> </div>
-<div class="line"><a id="l04454" name="l04454"></a><span class="lineno"> 4454</span>  <span class="comment">/* Cancel any timers.  Note that this will NOT prevent a given timer&#39;s handler from running.</span></div>
-<div class="line"><a id="l04455" name="l04455"></a><span class="lineno"> 4455</span><span class="comment">   * It will try to make it run ASAP with operation_aborted error code.  However, it may not even</span></div>
-<div class="line"><a id="l04456" name="l04456"></a><span class="lineno"> 4456</span><span class="comment">   * succeed in that.  In particular, if by the time the current handler started the timer handler</span></div>
-<div class="line"><a id="l04457" name="l04457"></a><span class="lineno"> 4457</span><span class="comment">   * event was already queued inside m_task_engine, then canceling the timer now will not load</span></div>
-<div class="line"><a id="l04458" name="l04458"></a><span class="lineno"> 4458</span><span class="comment">   * operation_aborted into the handler call; it will instead fire as if the timer really expired</span></div>
-<div class="line"><a id="l04459" name="l04459"></a><span class="lineno"> 4459</span><span class="comment">   * (which it did).  Therefore the timer handler should be careful to check the state of the socket</span></div>
-<div class="line"><a id="l04460" name="l04460"></a><span class="lineno"> 4460</span><span class="comment">   * and exit if the state is not suitable (in this case, S_CLOSED).</span></div>
-<div class="line"><a id="l04461" name="l04461"></a><span class="lineno"> 4461</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04462" name="l04462"></a><span class="lineno"> 4462</span><span class="comment">   * Even so, try to cancel with operation_aborted just to cut down on entropy a bit (at least by</span></div>
-<div class="line"><a id="l04463" name="l04463"></a><span class="lineno"> 4463</span><span class="comment">   * executing all handlers ASAP).</span></div>
-<div class="line"><a id="l04464" name="l04464"></a><span class="lineno"> 4464</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04465" name="l04465"></a><span class="lineno"> 4465</span><span class="comment">   * Update: However, scheduled_task_cancel() will indeed cleanly cancel.  `Timer`s are still in direct use</span></div>
-<div class="line"><a id="l04466" name="l04466"></a><span class="lineno"> 4466</span><span class="comment">   * as well however, so the above still applies to some of the below. */</span></div>
-<div class="line"><a id="l04467" name="l04467"></a><span class="lineno"> 4467</span> </div>
-<div class="line"><a id="l04468" name="l04468"></a><span class="lineno"> 4468</span>  sock-&gt;m_rcv_delayed_ack_timer.cancel();</div>
-<div class="line"><a id="l04469" name="l04469"></a><span class="lineno"> 4469</span>  sock-&gt;m_snd_pacing_data.m_slice_timer.cancel();</div>
-<div class="line"><a id="l04470" name="l04470"></a><span class="lineno"> 4470</span> </div>
-<div class="line"><a id="l04471" name="l04471"></a><span class="lineno"> 4471</span>  <span class="keywordflow">if</span> (sock-&gt;m_init_rexmit_scheduled_task)</div>
-<div class="line"><a id="l04472" name="l04472"></a><span class="lineno"> 4472</span>  {</div>
-<div class="line"><a id="l04473" name="l04473"></a><span class="lineno"> 4473</span>    <a class="code hl_function" href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">scheduled_task_cancel</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock-&gt;m_init_rexmit_scheduled_task);</div>
-<div class="line"><a id="l04474" name="l04474"></a><span class="lineno"> 4474</span>    sock-&gt;m_init_rexmit_scheduled_task = <a class="code hl_typedef" href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">Scheduled_task_handle</a>();</div>
-<div class="line"><a id="l04475" name="l04475"></a><span class="lineno"> 4475</span>  }</div>
-<div class="line"><a id="l04476" name="l04476"></a><span class="lineno"> 4476</span>  <span class="keywordflow">if</span> (sock-&gt;m_connection_timeout_scheduled_task)</div>
-<div class="line"><a id="l04477" name="l04477"></a><span class="lineno"> 4477</span>  {</div>
-<div class="line"><a id="l04478" name="l04478"></a><span class="lineno"> 4478</span>    <a class="code hl_function" href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">scheduled_task_cancel</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock-&gt;m_connection_timeout_scheduled_task);</div>
-<div class="line"><a id="l04479" name="l04479"></a><span class="lineno"> 4479</span>    sock-&gt;m_connection_timeout_scheduled_task = <a class="code hl_typedef" href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">Scheduled_task_handle</a>();</div>
-<div class="line"><a id="l04480" name="l04480"></a><span class="lineno"> 4480</span>  }</div>
-<div class="line"><a id="l04481" name="l04481"></a><span class="lineno"> 4481</span>  <span class="keywordflow">if</span> (sock-&gt;m_rcv_in_rcv_wnd_recovery)</div>
-<div class="line"><a id="l04482" name="l04482"></a><span class="lineno"> 4482</span>  {</div>
-<div class="line"><a id="l04483" name="l04483"></a><span class="lineno"> 4483</span>    <a class="code hl_function" href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">scheduled_task_cancel</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock-&gt;m_rcv_wnd_recovery_scheduled_task);</div>
-<div class="line"><a id="l04484" name="l04484"></a><span class="lineno"> 4484</span>    sock-&gt;m_rcv_in_rcv_wnd_recovery = <span class="keyword">false</span>;</div>
-<div class="line"><a id="l04485" name="l04485"></a><span class="lineno"> 4485</span>  }</div>
-<div class="line"><a id="l04486" name="l04486"></a><span class="lineno"> 4486</span> </div>
-<div class="line"><a id="l04487" name="l04487"></a><span class="lineno"> 4487</span>  <span class="keywordflow">if</span> (sock-&gt;m_snd_drop_timer)</div>
+<div class="line"><a id="l04423" name="l04423"></a><span class="lineno"> 4423</span>  <span class="comment">// Setup the next timer before sending packet for the same reason as in the original SYN/SYN_ACK-sending code.</span></div>
+<div class="line"><a id="l04424" name="l04424"></a><span class="lineno"> 4424</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac1485c07049d4bee70ad4ef2fc07bf12">setup_connection_timers</a>(<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>, sock, <span class="keyword">false</span>);</div>
+<div class="line"><a id="l04425" name="l04425"></a><span class="lineno"> 4425</span> </div>
+<div class="line"><a id="l04426" name="l04426"></a><span class="lineno"> 4426</span>  <span class="comment">/* Send packet.</span></div>
+<div class="line"><a id="l04427" name="l04427"></a><span class="lineno"> 4427</span><span class="comment">   * @todo More code reuse?  Or save the serialized version inside socket and resend here verbatim? */</span></div>
+<div class="line"><a id="l04428" name="l04428"></a><span class="lineno"> 4428</span> </div>
+<div class="line"><a id="l04429" name="l04429"></a><span class="lineno"> 4429</span>  <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Low_lvl_packet::Ptr</a> re_syn_base;</div>
+<div class="line"><a id="l04430" name="l04430"></a><span class="lineno"> 4430</span>  <span class="keywordflow">if</span> (sock-&gt;m_active_connect)</div>
+<div class="line"><a id="l04431" name="l04431"></a><span class="lineno"> 4431</span>  {</div>
+<div class="line"><a id="l04432" name="l04432"></a><span class="lineno"> 4432</span>    <span class="keyword">auto</span> syn = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a5bca5c11ac5a4763fed6ce146fe733e7">create_syn</a>(sock);</div>
+<div class="line"><a id="l04433" name="l04433"></a><span class="lineno"> 4433</span>    re_syn_base = <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(syn);</div>
+<div class="line"><a id="l04434" name="l04434"></a><span class="lineno"> 4434</span>  }</div>
+<div class="line"><a id="l04435" name="l04435"></a><span class="lineno"> 4435</span>  <span class="keywordflow">else</span></div>
+<div class="line"><a id="l04436" name="l04436"></a><span class="lineno"> 4436</span>  {</div>
+<div class="line"><a id="l04437" name="l04437"></a><span class="lineno"> 4437</span>    <span class="comment">// (Subtlety: As of this writing it wouldn&#39;t have changed since original SYN_ACK, but safe&gt;sorry.)</span></div>
+<div class="line"><a id="l04438" name="l04438"></a><span class="lineno"> 4438</span>    sock-&gt;m_rcv_last_sent_rcv_wnd = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">sock_rcv_wnd</a>(sock);</div>
+<div class="line"><a id="l04439" name="l04439"></a><span class="lineno"> 4439</span> </div>
+<div class="line"><a id="l04440" name="l04440"></a><span class="lineno"> 4440</span>    <span class="keyword">auto</span> syn_ack = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a6bcd840049c57150cdaa5c59d22c488b">create_syn_ack</a>(sock);</div>
+<div class="line"><a id="l04441" name="l04441"></a><span class="lineno"> 4441</span>    re_syn_base = <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(syn_ack);</div>
+<div class="line"><a id="l04442" name="l04442"></a><span class="lineno"> 4442</span>  }</div>
+<div class="line"><a id="l04443" name="l04443"></a><span class="lineno"> 4443</span> </div>
+<div class="line"><a id="l04444" name="l04444"></a><span class="lineno"> 4444</span>  <span class="comment">// Fill out common fields and asynchronously send packet.</span></div>
+<div class="line"><a id="l04445" name="l04445"></a><span class="lineno"> 4445</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">async_sock_low_lvl_packet_send_or_close_immediately</a>(sock, std::move(re_syn_base), <span class="keyword">false</span>))</div>
+<div class="line"><a id="l04446" name="l04446"></a><span class="lineno"> 4446</span>  {</div>
+<div class="line"><a id="l04447" name="l04447"></a><span class="lineno"> 4447</span>    <span class="comment">/* ^-- defer_delta_check == false: for similar reason as when calling send_worker() from</span></div>
+<div class="line"><a id="l04448" name="l04448"></a><span class="lineno"> 4448</span><span class="comment">     * send_worker_check_state(). */</span></div>
+<div class="line"><a id="l04449" name="l04449"></a><span class="lineno"> 4449</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l04450" name="l04450"></a><span class="lineno"> 4450</span>  }</div>
+<div class="line"><a id="l04451" name="l04451"></a><span class="lineno"> 4451</span>} <span class="comment">// Node::handle_connection_rexmit_timer_event()</span></div>
+<div class="line"><a id="l04452" name="l04452"></a><span class="lineno"> 4452</span> </div>
+<div class="line"><a id="l04453" name="l04453"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a3f9cf4d7160b3e27b3b0131fc4507ce7"> 4453</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a3f9cf4d7160b3e27b3b0131fc4507ce7">Node::cancel_timers</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
+<div class="line"><a id="l04454" name="l04454"></a><span class="lineno"> 4454</span>{</div>
+<div class="line"><a id="l04455" name="l04455"></a><span class="lineno"> 4455</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">util::scheduled_task_cancel</a>;</div>
+<div class="line"><a id="l04456" name="l04456"></a><span class="lineno"> 4456</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">util::Scheduled_task_handle</a>;</div>
+<div class="line"><a id="l04457" name="l04457"></a><span class="lineno"> 4457</span> </div>
+<div class="line"><a id="l04458" name="l04458"></a><span class="lineno"> 4458</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l04459" name="l04459"></a><span class="lineno"> 4459</span> </div>
+<div class="line"><a id="l04460" name="l04460"></a><span class="lineno"> 4460</span>  <span class="comment">/* Cancel any timers.  Note that this will NOT prevent a given timer&#39;s handler from running.</span></div>
+<div class="line"><a id="l04461" name="l04461"></a><span class="lineno"> 4461</span><span class="comment">   * It will try to make it run ASAP with operation_aborted error code.  However, it may not even</span></div>
+<div class="line"><a id="l04462" name="l04462"></a><span class="lineno"> 4462</span><span class="comment">   * succeed in that.  In particular, if by the time the current handler started the timer handler</span></div>
+<div class="line"><a id="l04463" name="l04463"></a><span class="lineno"> 4463</span><span class="comment">   * event was already queued inside m_task_engine, then canceling the timer now will not load</span></div>
+<div class="line"><a id="l04464" name="l04464"></a><span class="lineno"> 4464</span><span class="comment">   * operation_aborted into the handler call; it will instead fire as if the timer really expired</span></div>
+<div class="line"><a id="l04465" name="l04465"></a><span class="lineno"> 4465</span><span class="comment">   * (which it did).  Therefore the timer handler should be careful to check the state of the socket</span></div>
+<div class="line"><a id="l04466" name="l04466"></a><span class="lineno"> 4466</span><span class="comment">   * and exit if the state is not suitable (in this case, S_CLOSED).</span></div>
+<div class="line"><a id="l04467" name="l04467"></a><span class="lineno"> 4467</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04468" name="l04468"></a><span class="lineno"> 4468</span><span class="comment">   * Even so, try to cancel with operation_aborted just to cut down on entropy a bit (at least by</span></div>
+<div class="line"><a id="l04469" name="l04469"></a><span class="lineno"> 4469</span><span class="comment">   * executing all handlers ASAP).</span></div>
+<div class="line"><a id="l04470" name="l04470"></a><span class="lineno"> 4470</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04471" name="l04471"></a><span class="lineno"> 4471</span><span class="comment">   * Update: However, scheduled_task_cancel() will indeed cleanly cancel.  `Timer`s are still in direct use</span></div>
+<div class="line"><a id="l04472" name="l04472"></a><span class="lineno"> 4472</span><span class="comment">   * as well however, so the above still applies to some of the below. */</span></div>
+<div class="line"><a id="l04473" name="l04473"></a><span class="lineno"> 4473</span> </div>
+<div class="line"><a id="l04474" name="l04474"></a><span class="lineno"> 4474</span>  sock-&gt;m_rcv_delayed_ack_timer.cancel();</div>
+<div class="line"><a id="l04475" name="l04475"></a><span class="lineno"> 4475</span>  sock-&gt;m_snd_pacing_data.m_slice_timer.cancel();</div>
+<div class="line"><a id="l04476" name="l04476"></a><span class="lineno"> 4476</span> </div>
+<div class="line"><a id="l04477" name="l04477"></a><span class="lineno"> 4477</span>  <span class="keywordflow">if</span> (sock-&gt;m_init_rexmit_scheduled_task)</div>
+<div class="line"><a id="l04478" name="l04478"></a><span class="lineno"> 4478</span>  {</div>
+<div class="line"><a id="l04479" name="l04479"></a><span class="lineno"> 4479</span>    <a class="code hl_function" href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">scheduled_task_cancel</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock-&gt;m_init_rexmit_scheduled_task);</div>
+<div class="line"><a id="l04480" name="l04480"></a><span class="lineno"> 4480</span>    sock-&gt;m_init_rexmit_scheduled_task = <a class="code hl_typedef" href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">Scheduled_task_handle</a>();</div>
+<div class="line"><a id="l04481" name="l04481"></a><span class="lineno"> 4481</span>  }</div>
+<div class="line"><a id="l04482" name="l04482"></a><span class="lineno"> 4482</span>  <span class="keywordflow">if</span> (sock-&gt;m_connection_timeout_scheduled_task)</div>
+<div class="line"><a id="l04483" name="l04483"></a><span class="lineno"> 4483</span>  {</div>
+<div class="line"><a id="l04484" name="l04484"></a><span class="lineno"> 4484</span>    <a class="code hl_function" href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">scheduled_task_cancel</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock-&gt;m_connection_timeout_scheduled_task);</div>
+<div class="line"><a id="l04485" name="l04485"></a><span class="lineno"> 4485</span>    sock-&gt;m_connection_timeout_scheduled_task = <a class="code hl_typedef" href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">Scheduled_task_handle</a>();</div>
+<div class="line"><a id="l04486" name="l04486"></a><span class="lineno"> 4486</span>  }</div>
+<div class="line"><a id="l04487" name="l04487"></a><span class="lineno"> 4487</span>  <span class="keywordflow">if</span> (sock-&gt;m_rcv_in_rcv_wnd_recovery)</div>
 <div class="line"><a id="l04488" name="l04488"></a><span class="lineno"> 4488</span>  {</div>
-<div class="line"><a id="l04489" name="l04489"></a><span class="lineno"> 4489</span>    <span class="comment">// This Drop_timer guy actually will prevent any callbacks from firing.</span></div>
-<div class="line"><a id="l04490" name="l04490"></a><span class="lineno"> 4490</span>    sock-&gt;m_snd_drop_timer-&gt;done();</div>
-<div class="line"><a id="l04491" name="l04491"></a><span class="lineno"> 4491</span> </div>
-<div class="line"><a id="l04492" name="l04492"></a><span class="lineno"> 4492</span>    <span class="comment">/* The two `shared_ptr`s (sock and m_snd_drop_timer) point to each other.  Nullify this to break the cycle</span></div>
-<div class="line"><a id="l04493" name="l04493"></a><span class="lineno"> 4493</span><span class="comment">     * and thus avoid memory leak. */</span></div>
-<div class="line"><a id="l04494" name="l04494"></a><span class="lineno"> 4494</span>    sock-&gt;m_snd_drop_timer.reset();</div>
-<div class="line"><a id="l04495" name="l04495"></a><span class="lineno"> 4495</span>  }</div>
-<div class="line"><a id="l04496" name="l04496"></a><span class="lineno"> 4496</span>}</div>
+<div class="line"><a id="l04489" name="l04489"></a><span class="lineno"> 4489</span>    <a class="code hl_function" href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">scheduled_task_cancel</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock-&gt;m_rcv_wnd_recovery_scheduled_task);</div>
+<div class="line"><a id="l04490" name="l04490"></a><span class="lineno"> 4490</span>    sock-&gt;m_rcv_in_rcv_wnd_recovery = <span class="keyword">false</span>;</div>
+<div class="line"><a id="l04491" name="l04491"></a><span class="lineno"> 4491</span>  }</div>
+<div class="line"><a id="l04492" name="l04492"></a><span class="lineno"> 4492</span> </div>
+<div class="line"><a id="l04493" name="l04493"></a><span class="lineno"> 4493</span>  <span class="keywordflow">if</span> (sock-&gt;m_snd_drop_timer)</div>
+<div class="line"><a id="l04494" name="l04494"></a><span class="lineno"> 4494</span>  {</div>
+<div class="line"><a id="l04495" name="l04495"></a><span class="lineno"> 4495</span>    <span class="comment">// This Drop_timer guy actually will prevent any callbacks from firing.</span></div>
+<div class="line"><a id="l04496" name="l04496"></a><span class="lineno"> 4496</span>    sock-&gt;m_snd_drop_timer-&gt;done();</div>
 <div class="line"><a id="l04497" name="l04497"></a><span class="lineno"> 4497</span> </div>
-<div class="line"><a id="l04498" name="l04498"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ab427ebc124a6233ae48a7562662a6e81"> 4498</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ab427ebc124a6233ae48a7562662a6e81">Node::setup_drop_timer</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
-<div class="line"><a id="l04499" name="l04499"></a><span class="lineno"> 4499</span>{</div>
-<div class="line"><a id="l04500" name="l04500"></a><span class="lineno"> 4500</span>  sock-&gt;m_snd_drop_timeout = sock-&gt;opt(sock-&gt;m_opts.m_st_init_drop_timeout);</div>
-<div class="line"><a id="l04501" name="l04501"></a><span class="lineno"> 4501</span> </div>
-<div class="line"><a id="l04502" name="l04502"></a><span class="lineno"> 4502</span>  <span class="keyword">const</span> <span class="keyword">auto</span> on_fail = [<span class="keyword">this</span>, <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>, sock](<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>&amp; err_code)</div>
-<div class="line"><a id="l04503" name="l04503"></a><span class="lineno"> 4503</span>  {</div>
-<div class="line"><a id="l04504" name="l04504"></a><span class="lineno"> 4504</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">rst_and_close_connection_immediately</a>(<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>, sock, err_code, <span class="keyword">false</span>);</div>
-<div class="line"><a id="l04505" name="l04505"></a><span class="lineno"> 4505</span>    <span class="comment">// ^-- defer_delta_check == false: for similar reason as when calling send_worker() from send_worker_check_state().</span></div>
-<div class="line"><a id="l04506" name="l04506"></a><span class="lineno"> 4506</span>  };</div>
-<div class="line"><a id="l04507" name="l04507"></a><span class="lineno"> 4507</span>  <span class="keyword">const</span> <span class="keyword">auto</span> on_timer = [<span class="keyword">this</span>, <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>, sock](<span class="keywordtype">bool</span> drop_all_packets)</div>
-<div class="line"><a id="l04508" name="l04508"></a><span class="lineno"> 4508</span>  {</div>
-<div class="line"><a id="l04509" name="l04509"></a><span class="lineno"> 4509</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#affbc6abb1e344c6e98d3ac8068a54670">drop_timer_action</a>(sock, drop_all_packets);</div>
-<div class="line"><a id="l04510" name="l04510"></a><span class="lineno"> 4510</span>  };</div>
-<div class="line"><a id="l04511" name="l04511"></a><span class="lineno"> 4511</span> </div>
-<div class="line"><a id="l04512" name="l04512"></a><span class="lineno"> 4512</span>  <span class="comment">/* Set up the Drop Timer.  Basically give it some key fields of sock (DTO value, the In-flight</span></div>
-<div class="line"><a id="l04513" name="l04513"></a><span class="lineno"> 4513</span><span class="comment">   * queue) and the callbacks to call when events occur, such as the Drop Timer expiring.</span></div>
-<div class="line"><a id="l04514" name="l04514"></a><span class="lineno"> 4514</span><span class="comment">   * Additionally, when events m_snd_drop_timer wants to know about happen, we will call</span></div>
-<div class="line"><a id="l04515" name="l04515"></a><span class="lineno"> 4515</span><span class="comment">   * m_snd_drop_timer-&gt;on_...(). */</span></div>
-<div class="line"><a id="l04516" name="l04516"></a><span class="lineno"> 4516</span>  sock-&gt;m_snd_drop_timer = <a class="code hl_function" href="classflow_1_1net__flow_1_1Drop__timer.html#a64def367e38954d8a392cdf92fcc8f24">Drop_timer::create_drop_timer</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), &amp;<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>, &amp;sock-&gt;m_snd_drop_timeout,</div>
-<div class="line"><a id="l04517" name="l04517"></a><span class="lineno"> 4517</span>                                                         <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>(sock), on_fail, on_timer);</div>
-<div class="line"><a id="l04518" name="l04518"></a><span class="lineno"> 4518</span>}</div>
-<div class="line"><a id="l04519" name="l04519"></a><span class="lineno"> 4519</span> </div>
-<div class="line"><a id="l04520" name="l04520"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#aa19d1f49638ef8ce8883e7477a06d3fc"> 4520</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa19d1f49638ef8ce8883e7477a06d3fc">Node::send</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
-<div class="line"><a id="l04521" name="l04521"></a><span class="lineno"> 4521</span>                  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keywordtype">size_t</span> (<span class="keywordtype">size_t</span> max_data_size)&gt;&amp; snd_buf_feed_func,</div>
-<div class="line"><a id="l04522" name="l04522"></a><span class="lineno"> 4522</span>                  <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l04523" name="l04523"></a><span class="lineno"> 4523</span>{</div>
-<div class="line"><a id="l04524" name="l04524"></a><span class="lineno"> 4524</span>  <span class="keyword">using </span>boost::asio::post;</div>
+<div class="line"><a id="l04498" name="l04498"></a><span class="lineno"> 4498</span>    <span class="comment">/* The two `shared_ptr`s (sock and m_snd_drop_timer) point to each other.  Nullify this to break the cycle</span></div>
+<div class="line"><a id="l04499" name="l04499"></a><span class="lineno"> 4499</span><span class="comment">     * and thus avoid memory leak. */</span></div>
+<div class="line"><a id="l04500" name="l04500"></a><span class="lineno"> 4500</span>    sock-&gt;m_snd_drop_timer.reset();</div>
+<div class="line"><a id="l04501" name="l04501"></a><span class="lineno"> 4501</span>  }</div>
+<div class="line"><a id="l04502" name="l04502"></a><span class="lineno"> 4502</span>}</div>
+<div class="line"><a id="l04503" name="l04503"></a><span class="lineno"> 4503</span> </div>
+<div class="line"><a id="l04504" name="l04504"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ab427ebc124a6233ae48a7562662a6e81"> 4504</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ab427ebc124a6233ae48a7562662a6e81">Node::setup_drop_timer</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
+<div class="line"><a id="l04505" name="l04505"></a><span class="lineno"> 4505</span>{</div>
+<div class="line"><a id="l04506" name="l04506"></a><span class="lineno"> 4506</span>  sock-&gt;m_snd_drop_timeout = sock-&gt;opt(sock-&gt;m_opts.m_st_init_drop_timeout);</div>
+<div class="line"><a id="l04507" name="l04507"></a><span class="lineno"> 4507</span> </div>
+<div class="line"><a id="l04508" name="l04508"></a><span class="lineno"> 4508</span>  <span class="keyword">const</span> <span class="keyword">auto</span> on_fail = [<span class="keyword">this</span>, <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>, sock](<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>&amp; err_code)</div>
+<div class="line"><a id="l04509" name="l04509"></a><span class="lineno"> 4509</span>  {</div>
+<div class="line"><a id="l04510" name="l04510"></a><span class="lineno"> 4510</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">rst_and_close_connection_immediately</a>(<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>, sock, err_code, <span class="keyword">false</span>);</div>
+<div class="line"><a id="l04511" name="l04511"></a><span class="lineno"> 4511</span>    <span class="comment">// ^-- defer_delta_check == false: for similar reason as when calling send_worker() from send_worker_check_state().</span></div>
+<div class="line"><a id="l04512" name="l04512"></a><span class="lineno"> 4512</span>  };</div>
+<div class="line"><a id="l04513" name="l04513"></a><span class="lineno"> 4513</span>  <span class="keyword">const</span> <span class="keyword">auto</span> on_timer = [<span class="keyword">this</span>, <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>, sock](<span class="keywordtype">bool</span> drop_all_packets)</div>
+<div class="line"><a id="l04514" name="l04514"></a><span class="lineno"> 4514</span>  {</div>
+<div class="line"><a id="l04515" name="l04515"></a><span class="lineno"> 4515</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#affbc6abb1e344c6e98d3ac8068a54670">drop_timer_action</a>(sock, drop_all_packets);</div>
+<div class="line"><a id="l04516" name="l04516"></a><span class="lineno"> 4516</span>  };</div>
+<div class="line"><a id="l04517" name="l04517"></a><span class="lineno"> 4517</span> </div>
+<div class="line"><a id="l04518" name="l04518"></a><span class="lineno"> 4518</span>  <span class="comment">/* Set up the Drop Timer.  Basically give it some key fields of sock (DTO value, the In-flight</span></div>
+<div class="line"><a id="l04519" name="l04519"></a><span class="lineno"> 4519</span><span class="comment">   * queue) and the callbacks to call when events occur, such as the Drop Timer expiring.</span></div>
+<div class="line"><a id="l04520" name="l04520"></a><span class="lineno"> 4520</span><span class="comment">   * Additionally, when events m_snd_drop_timer wants to know about happen, we will call</span></div>
+<div class="line"><a id="l04521" name="l04521"></a><span class="lineno"> 4521</span><span class="comment">   * m_snd_drop_timer-&gt;on_...(). */</span></div>
+<div class="line"><a id="l04522" name="l04522"></a><span class="lineno"> 4522</span>  sock-&gt;m_snd_drop_timer = <a class="code hl_function" href="classflow_1_1net__flow_1_1Drop__timer.html#a64def367e38954d8a392cdf92fcc8f24">Drop_timer::create_drop_timer</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), &amp;<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>, &amp;sock-&gt;m_snd_drop_timeout,</div>
+<div class="line"><a id="l04523" name="l04523"></a><span class="lineno"> 4523</span>                                                         <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>(sock), on_fail, on_timer);</div>
+<div class="line"><a id="l04524" name="l04524"></a><span class="lineno"> 4524</span>}</div>
 <div class="line"><a id="l04525" name="l04525"></a><span class="lineno"> 4525</span> </div>
-<div class="line"><a id="l04526" name="l04526"></a><span class="lineno"> 4526</span>  <span class="comment">/* We are in user thread U != W.</span></div>
-<div class="line"><a id="l04527" name="l04527"></a><span class="lineno"> 4527</span><span class="comment">   * It&#39;s important to keep that in mind in this method.  In particular, it is absolutely unsafe to</span></div>
-<div class="line"><a id="l04528" name="l04528"></a><span class="lineno"> 4528</span><span class="comment">   * access m_int_state, which belongs solely to thread W and is never locked. */</span></div>
-<div class="line"><a id="l04529" name="l04529"></a><span class="lineno"> 4529</span> </div>
-<div class="line"><a id="l04530" name="l04530"></a><span class="lineno"> 4530</span>  <span class="comment">// IMPORTANT: The logic here must be consistent with sock_is_writable().</span></div>
+<div class="line"><a id="l04526" name="l04526"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#aa19d1f49638ef8ce8883e7477a06d3fc"> 4526</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa19d1f49638ef8ce8883e7477a06d3fc">Node::send</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
+<div class="line"><a id="l04527" name="l04527"></a><span class="lineno"> 4527</span>                  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keywordtype">size_t</span> (<span class="keywordtype">size_t</span> max_data_size)&gt;&amp; snd_buf_feed_func,</div>
+<div class="line"><a id="l04528" name="l04528"></a><span class="lineno"> 4528</span>                  <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l04529" name="l04529"></a><span class="lineno"> 4529</span>{</div>
+<div class="line"><a id="l04530" name="l04530"></a><span class="lineno"> 4530</span>  <span class="keyword">using </span>boost::asio::post;</div>
 <div class="line"><a id="l04531" name="l04531"></a><span class="lineno"> 4531</span> </div>
-<div class="line"><a id="l04532" name="l04532"></a><span class="lineno"> 4532</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">running</a>())</div>
-<div class="line"><a id="l04533" name="l04533"></a><span class="lineno"> 4533</span>  {</div>
-<div class="line"><a id="l04534" name="l04534"></a><span class="lineno"> 4534</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>);</div>
-<div class="line"><a id="l04535" name="l04535"></a><span class="lineno"> 4535</span>    <span class="keywordflow">return</span> 0;</div>
-<div class="line"><a id="l04536" name="l04536"></a><span class="lineno"> 4536</span>  }</div>
-<div class="line"><a id="l04537" name="l04537"></a><span class="lineno"> 4537</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l04538" name="l04538"></a><span class="lineno"> 4538</span> </div>
-<div class="line"><a id="l04539" name="l04539"></a><span class="lineno"> 4539</span>  <span class="comment">// Pre-condition is that m_mutex is locked already.  So EVERYTHING that can be locked, is, including the buffers.</span></div>
-<div class="line"><a id="l04540" name="l04540"></a><span class="lineno"> 4540</span> </div>
-<div class="line"><a id="l04541" name="l04541"></a><span class="lineno"> 4541</span>  <span class="comment">// Pre-condition.</span></div>
-<div class="line"><a id="l04542" name="l04542"></a><span class="lineno"> 4542</span>  assert(sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>); <span class="comment">// Locked.</span></div>
-<div class="line"><a id="l04543" name="l04543"></a><span class="lineno"> 4543</span> </div>
-<div class="line"><a id="l04544" name="l04544"></a><span class="lineno"> 4544</span>  <span class="keywordflow">if</span> (sock-&gt;m_disconnect_cause) <span class="comment">// Locked.</span></div>
-<div class="line"><a id="l04545" name="l04545"></a><span class="lineno"> 4545</span>  {</div>
-<div class="line"><a id="l04546" name="l04546"></a><span class="lineno"> 4546</span>    <span class="comment">// Error has been recorded, and we&#39;re not CLOSED =&gt; we are DISCONNECTING.</span></div>
-<div class="line"><a id="l04547" name="l04547"></a><span class="lineno"> 4547</span>    assert(sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>);</div>
-<div class="line"><a id="l04548" name="l04548"></a><span class="lineno"> 4548</span> </div>
-<div class="line"><a id="l04549" name="l04549"></a><span class="lineno"> 4549</span>    <span class="comment">/* Disconnection is underway.  Adding more data to the Send buffer is pointless; we</span></div>
-<div class="line"><a id="l04550" name="l04550"></a><span class="lineno"> 4550</span><span class="comment">     * don&#39;t allow more data to be queued to be sent after an error (though existing buffered data</span></div>
-<div class="line"><a id="l04551" name="l04551"></a><span class="lineno"> 4551</span><span class="comment">     * may yet be sent... but that&#39;s not relevant here).  @todo No graceful close yet. */</span></div>
-<div class="line"><a id="l04552" name="l04552"></a><span class="lineno"> 4552</span> </div>
-<div class="line"><a id="l04553" name="l04553"></a><span class="lineno"> 4553</span>    <span class="comment">// Mark in *err_code and log.</span></div>
-<div class="line"><a id="l04554" name="l04554"></a><span class="lineno"> 4554</span>    <a class="code hl_define" href="error_2error_8hpp.html#adc17094d4b9421abd04b90caab8b8e72">FLOW_ERROR_EMIT_ERROR_LOG_INFO</a>(sock-&gt;m_disconnect_cause);</div>
-<div class="line"><a id="l04555" name="l04555"></a><span class="lineno"> 4555</span>    <span class="keywordflow">return</span> 0;</div>
-<div class="line"><a id="l04556" name="l04556"></a><span class="lineno"> 4556</span>  }</div>
-<div class="line"><a id="l04557" name="l04557"></a><span class="lineno"> 4557</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l04532" name="l04532"></a><span class="lineno"> 4532</span>  <span class="comment">/* We are in user thread U != W.</span></div>
+<div class="line"><a id="l04533" name="l04533"></a><span class="lineno"> 4533</span><span class="comment">   * It&#39;s important to keep that in mind in this method.  In particular, it is absolutely unsafe to</span></div>
+<div class="line"><a id="l04534" name="l04534"></a><span class="lineno"> 4534</span><span class="comment">   * access m_int_state, which belongs solely to thread W and is never locked. */</span></div>
+<div class="line"><a id="l04535" name="l04535"></a><span class="lineno"> 4535</span> </div>
+<div class="line"><a id="l04536" name="l04536"></a><span class="lineno"> 4536</span>  <span class="comment">// IMPORTANT: The logic here must be consistent with sock_is_writable().</span></div>
+<div class="line"><a id="l04537" name="l04537"></a><span class="lineno"> 4537</span> </div>
+<div class="line"><a id="l04538" name="l04538"></a><span class="lineno"> 4538</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">running</a>())</div>
+<div class="line"><a id="l04539" name="l04539"></a><span class="lineno"> 4539</span>  {</div>
+<div class="line"><a id="l04540" name="l04540"></a><span class="lineno"> 4540</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>);</div>
+<div class="line"><a id="l04541" name="l04541"></a><span class="lineno"> 4541</span>    <span class="keywordflow">return</span> 0;</div>
+<div class="line"><a id="l04542" name="l04542"></a><span class="lineno"> 4542</span>  }</div>
+<div class="line"><a id="l04543" name="l04543"></a><span class="lineno"> 4543</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l04544" name="l04544"></a><span class="lineno"> 4544</span> </div>
+<div class="line"><a id="l04545" name="l04545"></a><span class="lineno"> 4545</span>  <span class="comment">// Pre-condition is that m_mutex is locked already.  So EVERYTHING that can be locked, is, including the buffers.</span></div>
+<div class="line"><a id="l04546" name="l04546"></a><span class="lineno"> 4546</span> </div>
+<div class="line"><a id="l04547" name="l04547"></a><span class="lineno"> 4547</span>  <span class="comment">// Pre-condition.</span></div>
+<div class="line"><a id="l04548" name="l04548"></a><span class="lineno"> 4548</span>  assert(sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>); <span class="comment">// Locked.</span></div>
+<div class="line"><a id="l04549" name="l04549"></a><span class="lineno"> 4549</span> </div>
+<div class="line"><a id="l04550" name="l04550"></a><span class="lineno"> 4550</span>  <span class="keywordflow">if</span> (sock-&gt;m_disconnect_cause) <span class="comment">// Locked.</span></div>
+<div class="line"><a id="l04551" name="l04551"></a><span class="lineno"> 4551</span>  {</div>
+<div class="line"><a id="l04552" name="l04552"></a><span class="lineno"> 4552</span>    <span class="comment">// Error has been recorded, and we&#39;re not CLOSED =&gt; we are DISCONNECTING.</span></div>
+<div class="line"><a id="l04553" name="l04553"></a><span class="lineno"> 4553</span>    assert(sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>);</div>
+<div class="line"><a id="l04554" name="l04554"></a><span class="lineno"> 4554</span> </div>
+<div class="line"><a id="l04555" name="l04555"></a><span class="lineno"> 4555</span>    <span class="comment">/* Disconnection is underway.  Adding more data to the Send buffer is pointless; we</span></div>
+<div class="line"><a id="l04556" name="l04556"></a><span class="lineno"> 4556</span><span class="comment">     * don&#39;t allow more data to be queued to be sent after an error (though existing buffered data</span></div>
+<div class="line"><a id="l04557" name="l04557"></a><span class="lineno"> 4557</span><span class="comment">     * may yet be sent... but that&#39;s not relevant here).  @todo No graceful close yet. */</span></div>
 <div class="line"><a id="l04558" name="l04558"></a><span class="lineno"> 4558</span> </div>
-<div class="line"><a id="l04559" name="l04559"></a><span class="lineno"> 4559</span>  <span class="comment">// No fatal error (socket not disconnecing or closed).  However it may still be connecting.</span></div>
-<div class="line"><a id="l04560" name="l04560"></a><span class="lineno"> 4560</span> </div>
-<div class="line"><a id="l04561" name="l04561"></a><span class="lineno"> 4561</span>  <span class="keywordflow">if</span> (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">Peer_socket::Open_sub_state::S_CONNECTING</a>)</div>
-<div class="line"><a id="l04562" name="l04562"></a><span class="lineno"> 4562</span>  {</div>
-<div class="line"><a id="l04563" name="l04563"></a><span class="lineno"> 4563</span>    <span class="comment">/* Here we draw a line in the sand and refuse to buffer any data.  We could easily allow</span></div>
-<div class="line"><a id="l04564" name="l04564"></a><span class="lineno"> 4564</span><span class="comment">     * buffering data even when still S_CONNECTING.  However, I am copying BSD socket semantics</span></div>
-<div class="line"><a id="l04565" name="l04565"></a><span class="lineno"> 4565</span><span class="comment">     * here, as they do seem to be useful.  As a user I don&#39;t want to think I&#39;ve &quot;sent&quot; gobs of data</span></div>
-<div class="line"><a id="l04566" name="l04566"></a><span class="lineno"> 4566</span><span class="comment">     * while there&#39;s little to suggest that there&#39;s even anyone listening on the other side. */</span></div>
-<div class="line"><a id="l04567" name="l04567"></a><span class="lineno"> 4567</span>    err_code-&gt;clear();</div>
-<div class="line"><a id="l04568" name="l04568"></a><span class="lineno"> 4568</span>    <span class="keywordflow">return</span> 0;</div>
-<div class="line"><a id="l04569" name="l04569"></a><span class="lineno"> 4569</span>  }</div>
-<div class="line"><a id="l04570" name="l04570"></a><span class="lineno"> 4570</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l04571" name="l04571"></a><span class="lineno"> 4571</span>  assert(sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">Peer_socket::Open_sub_state::S_CONNECTED</a>);</div>
-<div class="line"><a id="l04572" name="l04572"></a><span class="lineno"> 4572</span> </div>
-<div class="line"><a id="l04573" name="l04573"></a><span class="lineno"> 4573</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> was_deqable = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">snd_deqable</a>(sock); <span class="comment">// See below.</span></div>
-<div class="line"><a id="l04574" name="l04574"></a><span class="lineno"> 4574</span> </div>
-<div class="line"><a id="l04575" name="l04575"></a><span class="lineno"> 4575</span>  <span class="comment">/* Write the user-provided data into m_snd_buf; provide the missing argument (max_data_size).</span></div>
-<div class="line"><a id="l04576" name="l04576"></a><span class="lineno"> 4576</span><span class="comment">   * Round up to a multiple of max-block-size to ensure we never fragment a max-block-size-sized</span></div>
-<div class="line"><a id="l04577" name="l04577"></a><span class="lineno"> 4577</span><span class="comment">   * chunk of data when they&#39;re using unreliable mode! */</span></div>
-<div class="line"><a id="l04578" name="l04578"></a><span class="lineno"> 4578</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> sent = snd_buf_feed_func(sock-&gt;max_block_size_multiple(sock-&gt;m_opts.m_st_snd_buf_max_size));</div>
-<div class="line"><a id="l04579" name="l04579"></a><span class="lineno"> 4579</span> </div>
-<div class="line"><a id="l04580" name="l04580"></a><span class="lineno"> 4580</span>  <span class="comment">// Register that the Send buffer possibly grew.</span></div>
-<div class="line"><a id="l04581" name="l04581"></a><span class="lineno"> 4581</span>  sock-&gt;m_snd_stats.buffer_fed(sock-&gt;m_snd_buf.data_size());</div>
-<div class="line"><a id="l04582" name="l04582"></a><span class="lineno"> 4582</span> </div>
-<div class="line"><a id="l04583" name="l04583"></a><span class="lineno"> 4583</span>  <span class="comment">/* We&#39;ve done the minimal thing send() does: added data to the send buffer.  Now we may need to</span></div>
-<div class="line"><a id="l04584" name="l04584"></a><span class="lineno"> 4584</span><span class="comment">   * kick off the actual asynchronous sending of some of these data by thread W.  It&#39;s important to</span></div>
-<div class="line"><a id="l04585" name="l04585"></a><span class="lineno"> 4585</span><span class="comment">   * discuss the overall strategy for how that works.</span></div>
-<div class="line"><a id="l04586" name="l04586"></a><span class="lineno"> 4586</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04587" name="l04587"></a><span class="lineno"> 4587</span><span class="comment">   * Key question: how does W send low-level packets over UDP?  Answer: if there&#39;s anything on the</span></div>
-<div class="line"><a id="l04588" name="l04588"></a><span class="lineno"> 4588</span><span class="comment">   * Send buffer or retransmission queue (if retransmission is enabled), and there is no other</span></div>
-<div class="line"><a id="l04589" name="l04589"></a><span class="lineno"> 4589</span><span class="comment">   * (congestion control, probably) reason NOT to send packets, then dequeue a packet from</span></div>
-<div class="line"><a id="l04590" name="l04590"></a><span class="lineno"> 4590</span><span class="comment">   * retransmission queue or Send buffer and send it off to the UDP layer; repeat in a tight loop</span></div>
-<div class="line"><a id="l04591" name="l04591"></a><span class="lineno"> 4591</span><span class="comment">   * until both Send queues are empty, or there&#39;s some reason NOT to send packets (again, congestion</span></div>
-<div class="line"><a id="l04592" name="l04592"></a><span class="lineno"> 4592</span><span class="comment">   * control). Let&#39;s write this in pseudo-code:</span></div>
-<div class="line"><a id="l04593" name="l04593"></a><span class="lineno"> 4593</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04594" name="l04594"></a><span class="lineno"> 4594</span><span class="comment">   *   DEQ(sock): // Thread W only.</span></div>
-<div class="line"><a id="l04595" name="l04595"></a><span class="lineno"> 4595</span><span class="comment">   *     if (!sendable(sock)):</span></div>
-<div class="line"><a id="l04596" name="l04596"></a><span class="lineno"> 4596</span><span class="comment">   *       return // Slight optimization; perform this first check before locking.</span></div>
-<div class="line"><a id="l04597" name="l04597"></a><span class="lineno"> 4597</span><span class="comment">   *     lock sock // Must lock because sock-&gt;m_snd_buf accessible from other threads.</span></div>
-<div class="line"><a id="l04598" name="l04598"></a><span class="lineno"> 4598</span><span class="comment">   *     while (sendable(sock) &amp;&amp; deqable(sock)):</span></div>
-<div class="line"><a id="l04599" name="l04599"></a><span class="lineno"> 4599</span><span class="comment">   *       dequeue sock-&gt;m_snd_buf -&gt; block</span></div>
-<div class="line"><a id="l04600" name="l04600"></a><span class="lineno"> 4600</span><span class="comment">   *       serialize block into packet</span></div>
-<div class="line"><a id="l04601" name="l04601"></a><span class="lineno"> 4601</span><span class="comment">   *       send packet via UDP</span></div>
-<div class="line"><a id="l04602" name="l04602"></a><span class="lineno"> 4602</span><span class="comment">   *     unlock sock</span></div>
-<div class="line"><a id="l04603" name="l04603"></a><span class="lineno"> 4603</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04604" name="l04604"></a><span class="lineno"> 4604</span><span class="comment">   *   sendable(sock):</span></div>
-<div class="line"><a id="l04605" name="l04605"></a><span class="lineno"> 4605</span><span class="comment">   *     return &lt;...probably some congestion control condition involving CWND or something&gt;</span></div>
-<div class="line"><a id="l04606" name="l04606"></a><span class="lineno"> 4606</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04607" name="l04607"></a><span class="lineno"> 4607</span><span class="comment">   *   deqable(sock):</span></div>
-<div class="line"><a id="l04608" name="l04608"></a><span class="lineno"> 4608</span><span class="comment">   *     return !(sock-&gt;m_rexmit_q.empty() &amp;&amp; sock-&gt;m_snd_buf.empty())</span></div>
+<div class="line"><a id="l04559" name="l04559"></a><span class="lineno"> 4559</span>    <span class="comment">// Mark in *err_code and log.</span></div>
+<div class="line"><a id="l04560" name="l04560"></a><span class="lineno"> 4560</span>    <a class="code hl_define" href="error_2error_8hpp.html#adc17094d4b9421abd04b90caab8b8e72">FLOW_ERROR_EMIT_ERROR_LOG_INFO</a>(sock-&gt;m_disconnect_cause);</div>
+<div class="line"><a id="l04561" name="l04561"></a><span class="lineno"> 4561</span>    <span class="keywordflow">return</span> 0;</div>
+<div class="line"><a id="l04562" name="l04562"></a><span class="lineno"> 4562</span>  }</div>
+<div class="line"><a id="l04563" name="l04563"></a><span class="lineno"> 4563</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l04564" name="l04564"></a><span class="lineno"> 4564</span> </div>
+<div class="line"><a id="l04565" name="l04565"></a><span class="lineno"> 4565</span>  <span class="comment">// No fatal error (socket not disconnecing or closed).  However it may still be connecting.</span></div>
+<div class="line"><a id="l04566" name="l04566"></a><span class="lineno"> 4566</span> </div>
+<div class="line"><a id="l04567" name="l04567"></a><span class="lineno"> 4567</span>  <span class="keywordflow">if</span> (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">Peer_socket::Open_sub_state::S_CONNECTING</a>)</div>
+<div class="line"><a id="l04568" name="l04568"></a><span class="lineno"> 4568</span>  {</div>
+<div class="line"><a id="l04569" name="l04569"></a><span class="lineno"> 4569</span>    <span class="comment">/* Here we draw a line in the sand and refuse to buffer any data.  We could easily allow</span></div>
+<div class="line"><a id="l04570" name="l04570"></a><span class="lineno"> 4570</span><span class="comment">     * buffering data even when still S_CONNECTING.  However, I am copying BSD socket semantics</span></div>
+<div class="line"><a id="l04571" name="l04571"></a><span class="lineno"> 4571</span><span class="comment">     * here, as they do seem to be useful.  As a user I don&#39;t want to think I&#39;ve &quot;sent&quot; gobs of data</span></div>
+<div class="line"><a id="l04572" name="l04572"></a><span class="lineno"> 4572</span><span class="comment">     * while there&#39;s little to suggest that there&#39;s even anyone listening on the other side. */</span></div>
+<div class="line"><a id="l04573" name="l04573"></a><span class="lineno"> 4573</span>    err_code-&gt;clear();</div>
+<div class="line"><a id="l04574" name="l04574"></a><span class="lineno"> 4574</span>    <span class="keywordflow">return</span> 0;</div>
+<div class="line"><a id="l04575" name="l04575"></a><span class="lineno"> 4575</span>  }</div>
+<div class="line"><a id="l04576" name="l04576"></a><span class="lineno"> 4576</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l04577" name="l04577"></a><span class="lineno"> 4577</span>  assert(sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">Peer_socket::Open_sub_state::S_CONNECTED</a>);</div>
+<div class="line"><a id="l04578" name="l04578"></a><span class="lineno"> 4578</span> </div>
+<div class="line"><a id="l04579" name="l04579"></a><span class="lineno"> 4579</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> was_deqable = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">snd_deqable</a>(sock); <span class="comment">// See below.</span></div>
+<div class="line"><a id="l04580" name="l04580"></a><span class="lineno"> 4580</span> </div>
+<div class="line"><a id="l04581" name="l04581"></a><span class="lineno"> 4581</span>  <span class="comment">/* Write the user-provided data into m_snd_buf; provide the missing argument (max_data_size).</span></div>
+<div class="line"><a id="l04582" name="l04582"></a><span class="lineno"> 4582</span><span class="comment">   * Round up to a multiple of max-block-size to ensure we never fragment a max-block-size-sized</span></div>
+<div class="line"><a id="l04583" name="l04583"></a><span class="lineno"> 4583</span><span class="comment">   * chunk of data when they&#39;re using unreliable mode! */</span></div>
+<div class="line"><a id="l04584" name="l04584"></a><span class="lineno"> 4584</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> sent = snd_buf_feed_func(sock-&gt;max_block_size_multiple(sock-&gt;m_opts.m_st_snd_buf_max_size));</div>
+<div class="line"><a id="l04585" name="l04585"></a><span class="lineno"> 4585</span> </div>
+<div class="line"><a id="l04586" name="l04586"></a><span class="lineno"> 4586</span>  <span class="comment">// Register that the Send buffer possibly grew.</span></div>
+<div class="line"><a id="l04587" name="l04587"></a><span class="lineno"> 4587</span>  sock-&gt;m_snd_stats.buffer_fed(sock-&gt;m_snd_buf.data_size());</div>
+<div class="line"><a id="l04588" name="l04588"></a><span class="lineno"> 4588</span> </div>
+<div class="line"><a id="l04589" name="l04589"></a><span class="lineno"> 4589</span>  <span class="comment">/* We&#39;ve done the minimal thing send() does: added data to the send buffer.  Now we may need to</span></div>
+<div class="line"><a id="l04590" name="l04590"></a><span class="lineno"> 4590</span><span class="comment">   * kick off the actual asynchronous sending of some of these data by thread W.  It&#39;s important to</span></div>
+<div class="line"><a id="l04591" name="l04591"></a><span class="lineno"> 4591</span><span class="comment">   * discuss the overall strategy for how that works.</span></div>
+<div class="line"><a id="l04592" name="l04592"></a><span class="lineno"> 4592</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04593" name="l04593"></a><span class="lineno"> 4593</span><span class="comment">   * Key question: how does W send low-level packets over UDP?  Answer: if there&#39;s anything on the</span></div>
+<div class="line"><a id="l04594" name="l04594"></a><span class="lineno"> 4594</span><span class="comment">   * Send buffer or retransmission queue (if retransmission is enabled), and there is no other</span></div>
+<div class="line"><a id="l04595" name="l04595"></a><span class="lineno"> 4595</span><span class="comment">   * (congestion control, probably) reason NOT to send packets, then dequeue a packet from</span></div>
+<div class="line"><a id="l04596" name="l04596"></a><span class="lineno"> 4596</span><span class="comment">   * retransmission queue or Send buffer and send it off to the UDP layer; repeat in a tight loop</span></div>
+<div class="line"><a id="l04597" name="l04597"></a><span class="lineno"> 4597</span><span class="comment">   * until both Send queues are empty, or there&#39;s some reason NOT to send packets (again, congestion</span></div>
+<div class="line"><a id="l04598" name="l04598"></a><span class="lineno"> 4598</span><span class="comment">   * control). Let&#39;s write this in pseudo-code:</span></div>
+<div class="line"><a id="l04599" name="l04599"></a><span class="lineno"> 4599</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04600" name="l04600"></a><span class="lineno"> 4600</span><span class="comment">   *   DEQ(sock): // Thread W only.</span></div>
+<div class="line"><a id="l04601" name="l04601"></a><span class="lineno"> 4601</span><span class="comment">   *     if (!sendable(sock)):</span></div>
+<div class="line"><a id="l04602" name="l04602"></a><span class="lineno"> 4602</span><span class="comment">   *       return // Slight optimization; perform this first check before locking.</span></div>
+<div class="line"><a id="l04603" name="l04603"></a><span class="lineno"> 4603</span><span class="comment">   *     lock sock // Must lock because sock-&gt;m_snd_buf accessible from other threads.</span></div>
+<div class="line"><a id="l04604" name="l04604"></a><span class="lineno"> 4604</span><span class="comment">   *     while (sendable(sock) &amp;&amp; deqable(sock)):</span></div>
+<div class="line"><a id="l04605" name="l04605"></a><span class="lineno"> 4605</span><span class="comment">   *       dequeue sock-&gt;m_snd_buf -&gt; block</span></div>
+<div class="line"><a id="l04606" name="l04606"></a><span class="lineno"> 4606</span><span class="comment">   *       serialize block into packet</span></div>
+<div class="line"><a id="l04607" name="l04607"></a><span class="lineno"> 4607</span><span class="comment">   *       send packet via UDP</span></div>
+<div class="line"><a id="l04608" name="l04608"></a><span class="lineno"> 4608</span><span class="comment">   *     unlock sock</span></div>
 <div class="line"><a id="l04609" name="l04609"></a><span class="lineno"> 4609</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04610" name="l04610"></a><span class="lineno"> 4610</span><span class="comment">   * When should DEQ(sock) execute?  Answer: whenever sendable(sock) and deqable(sock) are true.  If</span></div>
-<div class="line"><a id="l04611" name="l04611"></a><span class="lineno"> 4611</span><span class="comment">   * they&#39;re true, but DEQ(sock) doesn&#39;t run for time period P, then it&#39;s practically like adding</span></div>
-<div class="line"><a id="l04612" name="l04612"></a><span class="lineno"> 4612</span><span class="comment">   * sleep(P) from the user&#39;s point of view.  So how do we get DEQ(sock) to execute as soon as those</span></div>
-<div class="line"><a id="l04613" name="l04613"></a><span class="lineno"> 4613</span><span class="comment">   * conditions are true?  Well, running it repeatedly in a thread W tight loop would do it, but</span></div>
-<div class="line"><a id="l04614" name="l04614"></a><span class="lineno"> 4614</span><span class="comment">   * obviously that&#39;s unacceptable.</span></div>
+<div class="line"><a id="l04610" name="l04610"></a><span class="lineno"> 4610</span><span class="comment">   *   sendable(sock):</span></div>
+<div class="line"><a id="l04611" name="l04611"></a><span class="lineno"> 4611</span><span class="comment">   *     return &lt;...probably some congestion control condition involving CWND or something&gt;</span></div>
+<div class="line"><a id="l04612" name="l04612"></a><span class="lineno"> 4612</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04613" name="l04613"></a><span class="lineno"> 4613</span><span class="comment">   *   deqable(sock):</span></div>
+<div class="line"><a id="l04614" name="l04614"></a><span class="lineno"> 4614</span><span class="comment">   *     return !(sock-&gt;m_rexmit_q.empty() &amp;&amp; sock-&gt;m_snd_buf.empty())</span></div>
 <div class="line"><a id="l04615" name="l04615"></a><span class="lineno"> 4615</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04616" name="l04616"></a><span class="lineno"> 4616</span><span class="comment">   * So consider the initial state after sock enters ESTABLISHED state.  sendable(sock) is true;</span></div>
-<div class="line"><a id="l04617" name="l04617"></a><span class="lineno"> 4617</span><span class="comment">   * deqable(sock) is false.  The moment deqable(sock) becomes true, we should execute DEQ(sock); in</span></div>
-<div class="line"><a id="l04618" name="l04618"></a><span class="lineno"> 4618</span><span class="comment">   * other words in the first sock-&gt;send(), as that will add to m_snd_buf.  After DEQ(sock) exits,</span></div>
-<div class="line"><a id="l04619" name="l04619"></a><span class="lineno"> 4619</span><span class="comment">   * there&#39;s no need to call DEQ(sock) until again both conditions are true.  Therefore, the</span></div>
-<div class="line"><a id="l04620" name="l04620"></a><span class="lineno"> 4620</span><span class="comment">   * algorithm is: whenever sendable(sock) goes from false to true, and/or deqable(sock) from false</span></div>
-<div class="line"><a id="l04621" name="l04621"></a><span class="lineno"> 4621</span><span class="comment">   * to true, call DEQ(sock).  If inside DEQ(sock) one of the conditions is still false, it will</span></div>
-<div class="line"><a id="l04622" name="l04622"></a><span class="lineno"> 4622</span><span class="comment">   * quickly return.  (Call the latter a NOOP.)</span></div>
-<div class="line"><a id="l04623" name="l04623"></a><span class="lineno"> 4623</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04624" name="l04624"></a><span class="lineno"> 4624</span><span class="comment">   * Now we must come up with a scheme that will ensure DEQ(sock) will run very quickly after either</span></div>
-<div class="line"><a id="l04625" name="l04625"></a><span class="lineno"> 4625</span><span class="comment">   * condition (sendable(sock), deqable(sock)) becomes true; and that will not peg the CPU.</span></div>
-<div class="line"><a id="l04626" name="l04626"></a><span class="lineno"> 4626</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04627" name="l04627"></a><span class="lineno"> 4627</span><span class="comment">   * Consider sendable().  Only thread W (transport layer) can determine this value: it depends on</span></div>
-<div class="line"><a id="l04628" name="l04628"></a><span class="lineno"> 4628</span><span class="comment">   * wholly internal details like packets in-flight and CWND.  Therefore sendable(sock) can go</span></div>
-<div class="line"><a id="l04629" name="l04629"></a><span class="lineno"> 4629</span><span class="comment">   * false-&gt;true only in W.  Hence W, whenever changing any component that might affect</span></div>
-<div class="line"><a id="l04630" name="l04630"></a><span class="lineno"> 4630</span><span class="comment">   * sendable(sock) would do:</span></div>
-<div class="line"><a id="l04631" name="l04631"></a><span class="lineno"> 4631</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04632" name="l04632"></a><span class="lineno"> 4632</span><span class="comment">   *   // ... Something related to sendable(sock) has changed....</span></div>
-<div class="line"><a id="l04633" name="l04633"></a><span class="lineno"> 4633</span><span class="comment">   *   DEQ(sock) // So check and send if possible.</span></div>
-<div class="line"><a id="l04634" name="l04634"></a><span class="lineno"> 4634</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04635" name="l04635"></a><span class="lineno"> 4635</span><span class="comment">   * Clearly this calls DEQ(sock) as soon as humanly possible after sendable(sock) becomes true.</span></div>
-<div class="line"><a id="l04636" name="l04636"></a><span class="lineno"> 4636</span><span class="comment">   * Clearly it wastes no CPU cycles either.  OK.</span></div>
+<div class="line"><a id="l04616" name="l04616"></a><span class="lineno"> 4616</span><span class="comment">   * When should DEQ(sock) execute?  Answer: whenever sendable(sock) and deqable(sock) are true.  If</span></div>
+<div class="line"><a id="l04617" name="l04617"></a><span class="lineno"> 4617</span><span class="comment">   * they&#39;re true, but DEQ(sock) doesn&#39;t run for time period P, then it&#39;s practically like adding</span></div>
+<div class="line"><a id="l04618" name="l04618"></a><span class="lineno"> 4618</span><span class="comment">   * sleep(P) from the user&#39;s point of view.  So how do we get DEQ(sock) to execute as soon as those</span></div>
+<div class="line"><a id="l04619" name="l04619"></a><span class="lineno"> 4619</span><span class="comment">   * conditions are true?  Well, running it repeatedly in a thread W tight loop would do it, but</span></div>
+<div class="line"><a id="l04620" name="l04620"></a><span class="lineno"> 4620</span><span class="comment">   * obviously that&#39;s unacceptable.</span></div>
+<div class="line"><a id="l04621" name="l04621"></a><span class="lineno"> 4621</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04622" name="l04622"></a><span class="lineno"> 4622</span><span class="comment">   * So consider the initial state after sock enters ESTABLISHED state.  sendable(sock) is true;</span></div>
+<div class="line"><a id="l04623" name="l04623"></a><span class="lineno"> 4623</span><span class="comment">   * deqable(sock) is false.  The moment deqable(sock) becomes true, we should execute DEQ(sock); in</span></div>
+<div class="line"><a id="l04624" name="l04624"></a><span class="lineno"> 4624</span><span class="comment">   * other words in the first sock-&gt;send(), as that will add to m_snd_buf.  After DEQ(sock) exits,</span></div>
+<div class="line"><a id="l04625" name="l04625"></a><span class="lineno"> 4625</span><span class="comment">   * there&#39;s no need to call DEQ(sock) until again both conditions are true.  Therefore, the</span></div>
+<div class="line"><a id="l04626" name="l04626"></a><span class="lineno"> 4626</span><span class="comment">   * algorithm is: whenever sendable(sock) goes from false to true, and/or deqable(sock) from false</span></div>
+<div class="line"><a id="l04627" name="l04627"></a><span class="lineno"> 4627</span><span class="comment">   * to true, call DEQ(sock).  If inside DEQ(sock) one of the conditions is still false, it will</span></div>
+<div class="line"><a id="l04628" name="l04628"></a><span class="lineno"> 4628</span><span class="comment">   * quickly return.  (Call the latter a NOOP.)</span></div>
+<div class="line"><a id="l04629" name="l04629"></a><span class="lineno"> 4629</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04630" name="l04630"></a><span class="lineno"> 4630</span><span class="comment">   * Now we must come up with a scheme that will ensure DEQ(sock) will run very quickly after either</span></div>
+<div class="line"><a id="l04631" name="l04631"></a><span class="lineno"> 4631</span><span class="comment">   * condition (sendable(sock), deqable(sock)) becomes true; and that will not peg the CPU.</span></div>
+<div class="line"><a id="l04632" name="l04632"></a><span class="lineno"> 4632</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04633" name="l04633"></a><span class="lineno"> 4633</span><span class="comment">   * Consider sendable().  Only thread W (transport layer) can determine this value: it depends on</span></div>
+<div class="line"><a id="l04634" name="l04634"></a><span class="lineno"> 4634</span><span class="comment">   * wholly internal details like packets in-flight and CWND.  Therefore sendable(sock) can go</span></div>
+<div class="line"><a id="l04635" name="l04635"></a><span class="lineno"> 4635</span><span class="comment">   * false-&gt;true only in W.  Hence W, whenever changing any component that might affect</span></div>
+<div class="line"><a id="l04636" name="l04636"></a><span class="lineno"> 4636</span><span class="comment">   * sendable(sock) would do:</span></div>
 <div class="line"><a id="l04637" name="l04637"></a><span class="lineno"> 4637</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04638" name="l04638"></a><span class="lineno"> 4638</span><span class="comment">   * Now consider deqable().  sock-&gt;m_snd_buf can only change from empty to non-empty in the</span></div>
-<div class="line"><a id="l04639" name="l04639"></a><span class="lineno"> 4639</span><span class="comment">   * previous statement (snd_buf_feed_func()).  That is in thread U != W.  Suppose we write:</span></div>
+<div class="line"><a id="l04638" name="l04638"></a><span class="lineno"> 4638</span><span class="comment">   *   // ... Something related to sendable(sock) has changed....</span></div>
+<div class="line"><a id="l04639" name="l04639"></a><span class="lineno"> 4639</span><span class="comment">   *   DEQ(sock) // So check and send if possible.</span></div>
 <div class="line"><a id="l04640" name="l04640"></a><span class="lineno"> 4640</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04641" name="l04641"></a><span class="lineno"> 4641</span><span class="comment">   *   SEND(sock, blocks): // Non-W threads only.</span></div>
-<div class="line"><a id="l04642" name="l04642"></a><span class="lineno"> 4642</span><span class="comment">   *     lock sock // Must lock because sock-&gt;m_snd_buf accessible from other threads.</span></div>
-<div class="line"><a id="l04643" name="l04643"></a><span class="lineno"> 4643</span><span class="comment">   *     add blocks -&gt; sock-&gt;m_snd_buf</span></div>
-<div class="line"><a id="l04644" name="l04644"></a><span class="lineno"> 4644</span><span class="comment">   *     if (sock-&gt;m_snd_buf was empty before previous statement)</span></div>
-<div class="line"><a id="l04645" name="l04645"></a><span class="lineno"> 4645</span><span class="comment">   *       // Queue DEQ(sock) for asynchronous execution on thread W as soon as it&#39;s free:</span></div>
-<div class="line"><a id="l04646" name="l04646"></a><span class="lineno"> 4646</span><span class="comment">   *       post(W, DEQ(sock))</span></div>
-<div class="line"><a id="l04647" name="l04647"></a><span class="lineno"> 4647</span><span class="comment">   *     unlock sock</span></div>
-<div class="line"><a id="l04648" name="l04648"></a><span class="lineno"> 4648</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04649" name="l04649"></a><span class="lineno"> 4649</span><span class="comment">   * Does this call DEQ(sock) as soon as deqable(sock) becomes true?  Well, DEQ(sock) can only run</span></div>
-<div class="line"><a id="l04650" name="l04650"></a><span class="lineno"> 4650</span><span class="comment">   * on thread W, and the enqueuing of blocks can only happen on thread U, and post() will cause</span></div>
-<div class="line"><a id="l04651" name="l04651"></a><span class="lineno"> 4651</span><span class="comment">   * DEQ(sock) to run as soon as possible.  Therefore that&#39;s as good as it can be.  Is it correct,</span></div>
-<div class="line"><a id="l04652" name="l04652"></a><span class="lineno"> 4652</span><span class="comment">   * however?  The mainstream case is that once &quot;unlock sock&quot; finished in SEND(), thread W will get</span></div>
-<div class="line"><a id="l04653" name="l04653"></a><span class="lineno"> 4653</span><span class="comment">   * some free time, execute the just-queued DEQ(), and thus everything works out.  OK so far.</span></div>
+<div class="line"><a id="l04641" name="l04641"></a><span class="lineno"> 4641</span><span class="comment">   * Clearly this calls DEQ(sock) as soon as humanly possible after sendable(sock) becomes true.</span></div>
+<div class="line"><a id="l04642" name="l04642"></a><span class="lineno"> 4642</span><span class="comment">   * Clearly it wastes no CPU cycles either.  OK.</span></div>
+<div class="line"><a id="l04643" name="l04643"></a><span class="lineno"> 4643</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04644" name="l04644"></a><span class="lineno"> 4644</span><span class="comment">   * Now consider deqable().  sock-&gt;m_snd_buf can only change from empty to non-empty in the</span></div>
+<div class="line"><a id="l04645" name="l04645"></a><span class="lineno"> 4645</span><span class="comment">   * previous statement (snd_buf_feed_func()).  That is in thread U != W.  Suppose we write:</span></div>
+<div class="line"><a id="l04646" name="l04646"></a><span class="lineno"> 4646</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04647" name="l04647"></a><span class="lineno"> 4647</span><span class="comment">   *   SEND(sock, blocks): // Non-W threads only.</span></div>
+<div class="line"><a id="l04648" name="l04648"></a><span class="lineno"> 4648</span><span class="comment">   *     lock sock // Must lock because sock-&gt;m_snd_buf accessible from other threads.</span></div>
+<div class="line"><a id="l04649" name="l04649"></a><span class="lineno"> 4649</span><span class="comment">   *     add blocks -&gt; sock-&gt;m_snd_buf</span></div>
+<div class="line"><a id="l04650" name="l04650"></a><span class="lineno"> 4650</span><span class="comment">   *     if (sock-&gt;m_snd_buf was empty before previous statement)</span></div>
+<div class="line"><a id="l04651" name="l04651"></a><span class="lineno"> 4651</span><span class="comment">   *       // Queue DEQ(sock) for asynchronous execution on thread W as soon as it&#39;s free:</span></div>
+<div class="line"><a id="l04652" name="l04652"></a><span class="lineno"> 4652</span><span class="comment">   *       post(W, DEQ(sock))</span></div>
+<div class="line"><a id="l04653" name="l04653"></a><span class="lineno"> 4653</span><span class="comment">   *     unlock sock</span></div>
 <div class="line"><a id="l04654" name="l04654"></a><span class="lineno"> 4654</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04655" name="l04655"></a><span class="lineno"> 4655</span><span class="comment">   * Since, however, post() is (obviously) asynchronous and done from thread non-W, there is</span></div>
-<div class="line"><a id="l04656" name="l04656"></a><span class="lineno"> 4656</span><span class="comment">   * potential for other tomfoolery.  First consider competing SEND() calls from other threads.</span></div>
-<div class="line"><a id="l04657" name="l04657"></a><span class="lineno"> 4657</span><span class="comment">   * Because of locking, they will be entirely sequential even from different threads and thus can</span></div>
-<div class="line"><a id="l04658" name="l04658"></a><span class="lineno"> 4658</span><span class="comment">   * be considered as all in one thread U != W.  Now suppose SEND() placed DEQ() onto W, and another</span></div>
-<div class="line"><a id="l04659" name="l04659"></a><span class="lineno"> 4659</span><span class="comment">   * SEND() executes before DEQ() executes on W.  No problem: since only DEQ() can dequeue the Send</span></div>
-<div class="line"><a id="l04660" name="l04660"></a><span class="lineno"> 4660</span><span class="comment">   * buffer, and the 1st SEND() made the buffer non-empty, the 2nd SEND() will not affect the DEQ()</span></div>
-<div class="line"><a id="l04661" name="l04661"></a><span class="lineno"> 4661</span><span class="comment">   * situation, since it cannot make m_snd_buf become non-empty after being empty (was already</span></div>
-<div class="line"><a id="l04662" name="l04662"></a><span class="lineno"> 4662</span><span class="comment">   * non-empty).</span></div>
-<div class="line"><a id="l04663" name="l04663"></a><span class="lineno"> 4663</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04664" name="l04664"></a><span class="lineno"> 4664</span><span class="comment">   * Second consider SEND(sock, blocks) executing while a W handler is executing.  Now suppose this</span></div>
-<div class="line"><a id="l04665" name="l04665"></a><span class="lineno"> 4665</span><span class="comment">   * W handler discovers that sendable() may be affected and thus calls DEQ(sock) as shown above;</span></div>
-<div class="line"><a id="l04666" name="l04666"></a><span class="lineno"> 4666</span><span class="comment">   * meanwhile SEND() posts DEQ(sock) onto W as well.  W will wait until SEND(sock, blocks) exits</span></div>
-<div class="line"><a id="l04667" name="l04667"></a><span class="lineno"> 4667</span><span class="comment">   * (due to the lock) before executing most of DEQ(sock), but when it does it will be ITS DEQ(sock)</span></div>
-<div class="line"><a id="l04668" name="l04668"></a><span class="lineno"> 4668</span><span class="comment">   * that executes first (regardless of whether the post from thread U happened first).  This</span></div>
-<div class="line"><a id="l04669" name="l04669"></a><span class="lineno"> 4669</span><span class="comment">   * DEQ(sock) will not be a NOOP, which is great.  Now, thread W should exit that handler and</span></div>
-<div class="line"><a id="l04670" name="l04670"></a><span class="lineno"> 4670</span><span class="comment">   * finally execute SEND()&#39;s posted DEQ() -- which will be a NOOP, because the synchronous</span></div>
-<div class="line"><a id="l04671" name="l04671"></a><span class="lineno"> 4671</span><span class="comment">   * DEQ(sock) from thread W preempted it.</span></div>
-<div class="line"><a id="l04672" name="l04672"></a><span class="lineno"> 4672</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04673" name="l04673"></a><span class="lineno"> 4673</span><span class="comment">   * Is this OK?  Most likely.  It&#39;ll spend some extra CPU cycles on the check in the NOOP, but</span></div>
-<div class="line"><a id="l04674" name="l04674"></a><span class="lineno"> 4674</span><span class="comment">   * that&#39;s it.  Now, there is some conceivable way that, maybe, such NOOPs could happen a lot in a</span></div>
-<div class="line"><a id="l04675" name="l04675"></a><span class="lineno"> 4675</span><span class="comment">   * very busy system and perhaps even &quot;bunch&quot; up to peg the CPU.  However, after doing many thought</span></div>
-<div class="line"><a id="l04676" name="l04676"></a><span class="lineno"> 4676</span><span class="comment">   * experiments, I unable to come up with anything actually worrying.</span></div>
-<div class="line"><a id="l04677" name="l04677"></a><span class="lineno"> 4677</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04678" name="l04678"></a><span class="lineno"> 4678</span><span class="comment">   * The other way deqable(sock) can become true is if m_rexmit_q was empty but becomes non-empty.</span></div>
-<div class="line"><a id="l04679" name="l04679"></a><span class="lineno"> 4679</span><span class="comment">   * In other words, if we detect packet as Dropped, we will have added it (if retransmission is on)</span></div>
-<div class="line"><a id="l04680" name="l04680"></a><span class="lineno"> 4680</span><span class="comment">   * to m_rexmit_q.  This can only happen on thread W and thus is handled similarly to</span></div>
-<div class="line"><a id="l04681" name="l04681"></a><span class="lineno"> 4681</span><span class="comment">   * sendable(sock):</span></div>
-<div class="line"><a id="l04682" name="l04682"></a><span class="lineno"> 4682</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04683" name="l04683"></a><span class="lineno"> 4683</span><span class="comment">   *   // ... Something related to deqable(sock) has changed....</span></div>
-<div class="line"><a id="l04684" name="l04684"></a><span class="lineno"> 4684</span><span class="comment">   *   DEQ(sock) // So check and send if possible.</span></div>
-<div class="line"><a id="l04685" name="l04685"></a><span class="lineno"> 4685</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04686" name="l04686"></a><span class="lineno"> 4686</span><span class="comment">   * So this system should be OK.  Now let&#39;s map the above pseudocode to actual code.</span></div>
-<div class="line"><a id="l04687" name="l04687"></a><span class="lineno"> 4687</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04688" name="l04688"></a><span class="lineno"> 4688</span><span class="comment">   * SEND(sock, blocks) is the very method you&#39;re reading now (Peer_socket::send() and</span></div>
-<div class="line"><a id="l04689" name="l04689"></a><span class="lineno"> 4689</span><span class="comment">   * Node::send(), runs in thread U != W).  DEQ(sock) is Node::send_worker(sock) (runs in thread</span></div>
-<div class="line"><a id="l04690" name="l04690"></a><span class="lineno"> 4690</span><span class="comment">   * W).  sendable(sock) is Node::can_send(sock).  deqable(sock) is Node::snd_deqable(sock).</span></div>
-<div class="line"><a id="l04691" name="l04691"></a><span class="lineno"> 4691</span><span class="comment">   * post(W, f) is post(Node::m_task_engine, f).</span></div>
-<div class="line"><a id="l04692" name="l04692"></a><span class="lineno"> 4692</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04693" name="l04693"></a><span class="lineno"> 4693</span><span class="comment">   * OK, there is one more small caveat.  If DEQ(sock) is placed onto W by SEND(sock, blocks),</span></div>
-<div class="line"><a id="l04694" name="l04694"></a><span class="lineno"> 4694</span><span class="comment">   * then before this DEQ() is executed, thread W may change the state of sock (for example, close</span></div>
-<div class="line"><a id="l04695" name="l04695"></a><span class="lineno"> 4695</span><span class="comment">   * it).  Therefore, DEQ() must also ensure it&#39;s operating in a state where it can send data</span></div>
-<div class="line"><a id="l04696" name="l04696"></a><span class="lineno"> 4696</span><span class="comment">   * (ESTABLISHED at least), and if not, NOOP.  Of course if DEQ() is executed synchronously by W,</span></div>
-<div class="line"><a id="l04697" name="l04697"></a><span class="lineno"> 4697</span><span class="comment">   * then this is unnecessary (since W code wouldn&#39;t execute DEQ() directly unless already in a</span></div>
-<div class="line"><a id="l04698" name="l04698"></a><span class="lineno"> 4698</span><span class="comment">   * proper state for this).  So, send_worker_check_state() is actually a little bit more than just</span></div>
-<div class="line"><a id="l04699" name="l04699"></a><span class="lineno"> 4699</span><span class="comment">   * DEQ(), while send_worker() is just DEQ().  send() posts send_worker_check_state(), while</span></div>
-<div class="line"><a id="l04700" name="l04700"></a><span class="lineno"> 4700</span><span class="comment">   * thread W executes send_worker() directly. */</span></div>
-<div class="line"><a id="l04701" name="l04701"></a><span class="lineno"> 4701</span> </div>
-<div class="line"><a id="l04702" name="l04702"></a><span class="lineno"> 4702</span>  <span class="keywordflow">if</span> ((!was_deqable) &amp;&amp; (sent != 0))</div>
-<div class="line"><a id="l04703" name="l04703"></a><span class="lineno"> 4703</span>  {</div>
-<div class="line"><a id="l04704" name="l04704"></a><span class="lineno"> 4704</span>    <span class="comment">// Possibly send_worker() can send packets now (send buffer went from empty to not).</span></div>
-<div class="line"><a id="l04705" name="l04705"></a><span class="lineno"> 4705</span>    post(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>, [<span class="keyword">this</span>, sock]() { <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2565b7c0bd82cad86eb168b62f8ffd9d">send_worker_check_state</a>(sock); });</div>
-<div class="line"><a id="l04706" name="l04706"></a><span class="lineno"> 4706</span>  }</div>
+<div class="line"><a id="l04655" name="l04655"></a><span class="lineno"> 4655</span><span class="comment">   * Does this call DEQ(sock) as soon as deqable(sock) becomes true?  Well, DEQ(sock) can only run</span></div>
+<div class="line"><a id="l04656" name="l04656"></a><span class="lineno"> 4656</span><span class="comment">   * on thread W, and the enqueuing of blocks can only happen on thread U, and post() will cause</span></div>
+<div class="line"><a id="l04657" name="l04657"></a><span class="lineno"> 4657</span><span class="comment">   * DEQ(sock) to run as soon as possible.  Therefore that&#39;s as good as it can be.  Is it correct,</span></div>
+<div class="line"><a id="l04658" name="l04658"></a><span class="lineno"> 4658</span><span class="comment">   * however?  The mainstream case is that once &quot;unlock sock&quot; finished in SEND(), thread W will get</span></div>
+<div class="line"><a id="l04659" name="l04659"></a><span class="lineno"> 4659</span><span class="comment">   * some free time, execute the just-queued DEQ(), and thus everything works out.  OK so far.</span></div>
+<div class="line"><a id="l04660" name="l04660"></a><span class="lineno"> 4660</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04661" name="l04661"></a><span class="lineno"> 4661</span><span class="comment">   * Since, however, post() is (obviously) asynchronous and done from thread non-W, there is</span></div>
+<div class="line"><a id="l04662" name="l04662"></a><span class="lineno"> 4662</span><span class="comment">   * potential for other tomfoolery.  First consider competing SEND() calls from other threads.</span></div>
+<div class="line"><a id="l04663" name="l04663"></a><span class="lineno"> 4663</span><span class="comment">   * Because of locking, they will be entirely sequential even from different threads and thus can</span></div>
+<div class="line"><a id="l04664" name="l04664"></a><span class="lineno"> 4664</span><span class="comment">   * be considered as all in one thread U != W.  Now suppose SEND() placed DEQ() onto W, and another</span></div>
+<div class="line"><a id="l04665" name="l04665"></a><span class="lineno"> 4665</span><span class="comment">   * SEND() executes before DEQ() executes on W.  No problem: since only DEQ() can dequeue the Send</span></div>
+<div class="line"><a id="l04666" name="l04666"></a><span class="lineno"> 4666</span><span class="comment">   * buffer, and the 1st SEND() made the buffer non-empty, the 2nd SEND() will not affect the DEQ()</span></div>
+<div class="line"><a id="l04667" name="l04667"></a><span class="lineno"> 4667</span><span class="comment">   * situation, since it cannot make m_snd_buf become non-empty after being empty (was already</span></div>
+<div class="line"><a id="l04668" name="l04668"></a><span class="lineno"> 4668</span><span class="comment">   * non-empty).</span></div>
+<div class="line"><a id="l04669" name="l04669"></a><span class="lineno"> 4669</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04670" name="l04670"></a><span class="lineno"> 4670</span><span class="comment">   * Second consider SEND(sock, blocks) executing while a W handler is executing.  Now suppose this</span></div>
+<div class="line"><a id="l04671" name="l04671"></a><span class="lineno"> 4671</span><span class="comment">   * W handler discovers that sendable() may be affected and thus calls DEQ(sock) as shown above;</span></div>
+<div class="line"><a id="l04672" name="l04672"></a><span class="lineno"> 4672</span><span class="comment">   * meanwhile SEND() posts DEQ(sock) onto W as well.  W will wait until SEND(sock, blocks) exits</span></div>
+<div class="line"><a id="l04673" name="l04673"></a><span class="lineno"> 4673</span><span class="comment">   * (due to the lock) before executing most of DEQ(sock), but when it does it will be ITS DEQ(sock)</span></div>
+<div class="line"><a id="l04674" name="l04674"></a><span class="lineno"> 4674</span><span class="comment">   * that executes first (regardless of whether the post from thread U happened first).  This</span></div>
+<div class="line"><a id="l04675" name="l04675"></a><span class="lineno"> 4675</span><span class="comment">   * DEQ(sock) will not be a NOOP, which is great.  Now, thread W should exit that handler and</span></div>
+<div class="line"><a id="l04676" name="l04676"></a><span class="lineno"> 4676</span><span class="comment">   * finally execute SEND()&#39;s posted DEQ() -- which will be a NOOP, because the synchronous</span></div>
+<div class="line"><a id="l04677" name="l04677"></a><span class="lineno"> 4677</span><span class="comment">   * DEQ(sock) from thread W preempted it.</span></div>
+<div class="line"><a id="l04678" name="l04678"></a><span class="lineno"> 4678</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04679" name="l04679"></a><span class="lineno"> 4679</span><span class="comment">   * Is this OK?  Most likely.  It&#39;ll spend some extra CPU cycles on the check in the NOOP, but</span></div>
+<div class="line"><a id="l04680" name="l04680"></a><span class="lineno"> 4680</span><span class="comment">   * that&#39;s it.  Now, there is some conceivable way that, maybe, such NOOPs could happen a lot in a</span></div>
+<div class="line"><a id="l04681" name="l04681"></a><span class="lineno"> 4681</span><span class="comment">   * very busy system and perhaps even &quot;bunch&quot; up to peg the CPU.  However, after doing many thought</span></div>
+<div class="line"><a id="l04682" name="l04682"></a><span class="lineno"> 4682</span><span class="comment">   * experiments, I unable to come up with anything actually worrying.</span></div>
+<div class="line"><a id="l04683" name="l04683"></a><span class="lineno"> 4683</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04684" name="l04684"></a><span class="lineno"> 4684</span><span class="comment">   * The other way deqable(sock) can become true is if m_rexmit_q was empty but becomes non-empty.</span></div>
+<div class="line"><a id="l04685" name="l04685"></a><span class="lineno"> 4685</span><span class="comment">   * In other words, if we detect packet as Dropped, we will have added it (if retransmission is on)</span></div>
+<div class="line"><a id="l04686" name="l04686"></a><span class="lineno"> 4686</span><span class="comment">   * to m_rexmit_q.  This can only happen on thread W and thus is handled similarly to</span></div>
+<div class="line"><a id="l04687" name="l04687"></a><span class="lineno"> 4687</span><span class="comment">   * sendable(sock):</span></div>
+<div class="line"><a id="l04688" name="l04688"></a><span class="lineno"> 4688</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04689" name="l04689"></a><span class="lineno"> 4689</span><span class="comment">   *   // ... Something related to deqable(sock) has changed....</span></div>
+<div class="line"><a id="l04690" name="l04690"></a><span class="lineno"> 4690</span><span class="comment">   *   DEQ(sock) // So check and send if possible.</span></div>
+<div class="line"><a id="l04691" name="l04691"></a><span class="lineno"> 4691</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04692" name="l04692"></a><span class="lineno"> 4692</span><span class="comment">   * So this system should be OK.  Now let&#39;s map the above pseudocode to actual code.</span></div>
+<div class="line"><a id="l04693" name="l04693"></a><span class="lineno"> 4693</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04694" name="l04694"></a><span class="lineno"> 4694</span><span class="comment">   * SEND(sock, blocks) is the very method you&#39;re reading now (Peer_socket::send() and</span></div>
+<div class="line"><a id="l04695" name="l04695"></a><span class="lineno"> 4695</span><span class="comment">   * Node::send(), runs in thread U != W).  DEQ(sock) is Node::send_worker(sock) (runs in thread</span></div>
+<div class="line"><a id="l04696" name="l04696"></a><span class="lineno"> 4696</span><span class="comment">   * W).  sendable(sock) is Node::can_send(sock).  deqable(sock) is Node::snd_deqable(sock).</span></div>
+<div class="line"><a id="l04697" name="l04697"></a><span class="lineno"> 4697</span><span class="comment">   * post(W, f) is post(Node::m_task_engine, f).</span></div>
+<div class="line"><a id="l04698" name="l04698"></a><span class="lineno"> 4698</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04699" name="l04699"></a><span class="lineno"> 4699</span><span class="comment">   * OK, there is one more small caveat.  If DEQ(sock) is placed onto W by SEND(sock, blocks),</span></div>
+<div class="line"><a id="l04700" name="l04700"></a><span class="lineno"> 4700</span><span class="comment">   * then before this DEQ() is executed, thread W may change the state of sock (for example, close</span></div>
+<div class="line"><a id="l04701" name="l04701"></a><span class="lineno"> 4701</span><span class="comment">   * it).  Therefore, DEQ() must also ensure it&#39;s operating in a state where it can send data</span></div>
+<div class="line"><a id="l04702" name="l04702"></a><span class="lineno"> 4702</span><span class="comment">   * (ESTABLISHED at least), and if not, NOOP.  Of course if DEQ() is executed synchronously by W,</span></div>
+<div class="line"><a id="l04703" name="l04703"></a><span class="lineno"> 4703</span><span class="comment">   * then this is unnecessary (since W code wouldn&#39;t execute DEQ() directly unless already in a</span></div>
+<div class="line"><a id="l04704" name="l04704"></a><span class="lineno"> 4704</span><span class="comment">   * proper state for this).  So, send_worker_check_state() is actually a little bit more than just</span></div>
+<div class="line"><a id="l04705" name="l04705"></a><span class="lineno"> 4705</span><span class="comment">   * DEQ(), while send_worker() is just DEQ().  send() posts send_worker_check_state(), while</span></div>
+<div class="line"><a id="l04706" name="l04706"></a><span class="lineno"> 4706</span><span class="comment">   * thread W executes send_worker() directly. */</span></div>
 <div class="line"><a id="l04707" name="l04707"></a><span class="lineno"> 4707</span> </div>
-<div class="line"><a id="l04708" name="l04708"></a><span class="lineno"> 4708</span>  err_code-&gt;clear();</div>
-<div class="line"><a id="l04709" name="l04709"></a><span class="lineno"> 4709</span>  <span class="keywordflow">return</span> sent;</div>
-<div class="line"><a id="l04710" name="l04710"></a><span class="lineno"> 4710</span>  <span class="comment">// Note that sock-&gt;m_mutex is unlocked here (and send_worker() will lock it again when it [probably soon] executes).</span></div>
-<div class="line"><a id="l04711" name="l04711"></a><span class="lineno"> 4711</span>} <span class="comment">// Node::send()</span></div>
-<div class="line"><a id="l04712" name="l04712"></a><span class="lineno"> 4712</span> </div>
-<div class="line"><a id="l04713" name="l04713"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a0756fc7301d0cfa66f19e681a9c60c06"> 4713</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a0756fc7301d0cfa66f19e681a9c60c06">Node::sock_is_writable</a>(<span class="keyword">const</span> boost::any&amp; sock_as_any)<span class="keyword"> const</span></div>
-<div class="line"><a id="l04714" name="l04714"></a><span class="lineno"> 4714</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l04715" name="l04715"></a><span class="lineno"> 4715</span>  <span class="keyword">using </span>boost::any_cast;</div>
-<div class="line"><a id="l04716" name="l04716"></a><span class="lineno"> 4716</span> </div>
-<div class="line"><a id="l04717" name="l04717"></a><span class="lineno"> 4717</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock = any_cast&lt;Peer_socket::Ptr&gt;(sock_as_any);</div>
+<div class="line"><a id="l04708" name="l04708"></a><span class="lineno"> 4708</span>  <span class="keywordflow">if</span> ((!was_deqable) &amp;&amp; (sent != 0))</div>
+<div class="line"><a id="l04709" name="l04709"></a><span class="lineno"> 4709</span>  {</div>
+<div class="line"><a id="l04710" name="l04710"></a><span class="lineno"> 4710</span>    <span class="comment">// Possibly send_worker() can send packets now (send buffer went from empty to not).</span></div>
+<div class="line"><a id="l04711" name="l04711"></a><span class="lineno"> 4711</span>    post(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>, [<span class="keyword">this</span>, sock]() { <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2565b7c0bd82cad86eb168b62f8ffd9d">send_worker_check_state</a>(sock); });</div>
+<div class="line"><a id="l04712" name="l04712"></a><span class="lineno"> 4712</span>  }</div>
+<div class="line"><a id="l04713" name="l04713"></a><span class="lineno"> 4713</span> </div>
+<div class="line"><a id="l04714" name="l04714"></a><span class="lineno"> 4714</span>  err_code-&gt;clear();</div>
+<div class="line"><a id="l04715" name="l04715"></a><span class="lineno"> 4715</span>  <span class="keywordflow">return</span> sent;</div>
+<div class="line"><a id="l04716" name="l04716"></a><span class="lineno"> 4716</span>  <span class="comment">// Note that sock-&gt;m_mutex is unlocked here (and send_worker() will lock it again when it [probably soon] executes).</span></div>
+<div class="line"><a id="l04717" name="l04717"></a><span class="lineno"> 4717</span>} <span class="comment">// Node::send()</span></div>
 <div class="line"><a id="l04718" name="l04718"></a><span class="lineno"> 4718</span> </div>
-<div class="line"><a id="l04719" name="l04719"></a><span class="lineno"> 4719</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex); <span class="comment">// Many threads can access/write below state.</span></div>
-<div class="line"><a id="l04720" name="l04720"></a><span class="lineno"> 4720</span> </div>
-<div class="line"><a id="l04721" name="l04721"></a><span class="lineno"> 4721</span>  <span class="comment">/* Our task here is to return true if and only if at this very moment calling sock-&gt;send() would</span></div>
-<div class="line"><a id="l04722" name="l04722"></a><span class="lineno"> 4722</span><span class="comment">   * yield either a return value of &gt; 0 OR a non-success *err_code.  In other words, send() would</span></div>
-<div class="line"><a id="l04723" name="l04723"></a><span class="lineno"> 4723</span><span class="comment">   * return &quot;something.&quot;  This is used for Event_set machinery.</span></div>
-<div class="line"><a id="l04724" name="l04724"></a><span class="lineno"> 4724</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04725" name="l04725"></a><span class="lineno"> 4725</span><span class="comment">   * This should mirror send()&#39;s algorithm.  @todo Should send() call this, for code reuse?</span></div>
-<div class="line"><a id="l04726" name="l04726"></a><span class="lineno"> 4726</span><span class="comment">   * Maybe/maybe not.  Consider performance when deciding.</span></div>
-<div class="line"><a id="l04727" name="l04727"></a><span class="lineno"> 4727</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04728" name="l04728"></a><span class="lineno"> 4728</span><span class="comment">   * - If state is CLOSED, then some sort of error/terminating condition occurred, so send()</span></div>
-<div class="line"><a id="l04729" name="l04729"></a><span class="lineno"> 4729</span><span class="comment">   *   would return 0 and non-success Error_code == sock-&gt;m_disconnect_cause.  (Writable.)</span></div>
-<div class="line"><a id="l04730" name="l04730"></a><span class="lineno"> 4730</span><span class="comment">   * - Otherwise, if state is OPEN+DISCONNECTING, then graceful close (@todo implement it) is</span></div>
-<div class="line"><a id="l04731" name="l04731"></a><span class="lineno"> 4731</span><span class="comment">   *   underway; we do not allow more data to be sent (except what&#39;s already in Sent buffer), so</span></div>
-<div class="line"><a id="l04732" name="l04732"></a><span class="lineno"> 4732</span><span class="comment">   *   send() would return 0 and non-success Error_code == sock-&gt;m_disconnect_cause.</span></div>
-<div class="line"><a id="l04733" name="l04733"></a><span class="lineno"> 4733</span><span class="comment">   *   (Writable.)</span></div>
-<div class="line"><a id="l04734" name="l04734"></a><span class="lineno"> 4734</span><span class="comment">   * - Otherwise, if state is OPEN+CONNECTED, and there is Send buffer space, send() would return &gt;</span></div>
-<div class="line"><a id="l04735" name="l04735"></a><span class="lineno"> 4735</span><span class="comment">   *   0 and no error.  (Writable.)</span></div>
-<div class="line"><a id="l04736" name="l04736"></a><span class="lineno"> 4736</span><span class="comment">   * - The other remaining possibilities:</span></div>
-<div class="line"><a id="l04737" name="l04737"></a><span class="lineno"> 4737</span><span class="comment">   *   - OPEN+CONNECTED but no Send buffer space (returns 0, no error).  (Not Writable.)</span></div>
-<div class="line"><a id="l04738" name="l04738"></a><span class="lineno"> 4738</span><span class="comment">   *   - OPEN+CONNECTING -- we don&#39;t allow accumulating data in Send buffer (returns 0, no error).</span></div>
-<div class="line"><a id="l04739" name="l04739"></a><span class="lineno"> 4739</span><span class="comment">   *     (Not Writable.) */</span></div>
-<div class="line"><a id="l04740" name="l04740"></a><span class="lineno"> 4740</span> </div>
-<div class="line"><a id="l04741" name="l04741"></a><span class="lineno"> 4741</span>  <span class="keywordflow">return</span> (sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>)</div>
-<div class="line"><a id="l04742" name="l04742"></a><span class="lineno"> 4742</span>         || (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>)</div>
-<div class="line"><a id="l04743" name="l04743"></a><span class="lineno"> 4743</span>         || ((sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">Peer_socket::Open_sub_state::S_CONNECTED</a>)</div>
-<div class="line"><a id="l04744" name="l04744"></a><span class="lineno"> 4744</span>             &amp;&amp; <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a70d124ba678e2ab72f8c6d28140ca137">snd_buf_enqable</a>(sock));</div>
-<div class="line"><a id="l04745" name="l04745"></a><span class="lineno"> 4745</span>} <span class="comment">// Node::sock_is_writable()</span></div>
+<div class="line"><a id="l04719" name="l04719"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a0756fc7301d0cfa66f19e681a9c60c06"> 4719</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a0756fc7301d0cfa66f19e681a9c60c06">Node::sock_is_writable</a>(<span class="keyword">const</span> boost::any&amp; sock_as_any)<span class="keyword"> const</span></div>
+<div class="line"><a id="l04720" name="l04720"></a><span class="lineno"> 4720</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l04721" name="l04721"></a><span class="lineno"> 4721</span>  <span class="keyword">using </span>boost::any_cast;</div>
+<div class="line"><a id="l04722" name="l04722"></a><span class="lineno"> 4722</span> </div>
+<div class="line"><a id="l04723" name="l04723"></a><span class="lineno"> 4723</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock = any_cast&lt;Peer_socket::Ptr&gt;(sock_as_any);</div>
+<div class="line"><a id="l04724" name="l04724"></a><span class="lineno"> 4724</span> </div>
+<div class="line"><a id="l04725" name="l04725"></a><span class="lineno"> 4725</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex); <span class="comment">// Many threads can access/write below state.</span></div>
+<div class="line"><a id="l04726" name="l04726"></a><span class="lineno"> 4726</span> </div>
+<div class="line"><a id="l04727" name="l04727"></a><span class="lineno"> 4727</span>  <span class="comment">/* Our task here is to return true if and only if at this very moment calling sock-&gt;send() would</span></div>
+<div class="line"><a id="l04728" name="l04728"></a><span class="lineno"> 4728</span><span class="comment">   * yield either a return value of &gt; 0 OR a non-success *err_code.  In other words, send() would</span></div>
+<div class="line"><a id="l04729" name="l04729"></a><span class="lineno"> 4729</span><span class="comment">   * return &quot;something.&quot;  This is used for Event_set machinery.</span></div>
+<div class="line"><a id="l04730" name="l04730"></a><span class="lineno"> 4730</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04731" name="l04731"></a><span class="lineno"> 4731</span><span class="comment">   * This should mirror send()&#39;s algorithm.  @todo Should send() call this, for code reuse?</span></div>
+<div class="line"><a id="l04732" name="l04732"></a><span class="lineno"> 4732</span><span class="comment">   * Maybe/maybe not.  Consider performance when deciding.</span></div>
+<div class="line"><a id="l04733" name="l04733"></a><span class="lineno"> 4733</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04734" name="l04734"></a><span class="lineno"> 4734</span><span class="comment">   * - If state is CLOSED, then some sort of error/terminating condition occurred, so send()</span></div>
+<div class="line"><a id="l04735" name="l04735"></a><span class="lineno"> 4735</span><span class="comment">   *   would return 0 and non-success Error_code == sock-&gt;m_disconnect_cause.  (Writable.)</span></div>
+<div class="line"><a id="l04736" name="l04736"></a><span class="lineno"> 4736</span><span class="comment">   * - Otherwise, if state is OPEN+DISCONNECTING, then graceful close (@todo implement it) is</span></div>
+<div class="line"><a id="l04737" name="l04737"></a><span class="lineno"> 4737</span><span class="comment">   *   underway; we do not allow more data to be sent (except what&#39;s already in Sent buffer), so</span></div>
+<div class="line"><a id="l04738" name="l04738"></a><span class="lineno"> 4738</span><span class="comment">   *   send() would return 0 and non-success Error_code == sock-&gt;m_disconnect_cause.</span></div>
+<div class="line"><a id="l04739" name="l04739"></a><span class="lineno"> 4739</span><span class="comment">   *   (Writable.)</span></div>
+<div class="line"><a id="l04740" name="l04740"></a><span class="lineno"> 4740</span><span class="comment">   * - Otherwise, if state is OPEN+CONNECTED, and there is Send buffer space, send() would return &gt;</span></div>
+<div class="line"><a id="l04741" name="l04741"></a><span class="lineno"> 4741</span><span class="comment">   *   0 and no error.  (Writable.)</span></div>
+<div class="line"><a id="l04742" name="l04742"></a><span class="lineno"> 4742</span><span class="comment">   * - The other remaining possibilities:</span></div>
+<div class="line"><a id="l04743" name="l04743"></a><span class="lineno"> 4743</span><span class="comment">   *   - OPEN+CONNECTED but no Send buffer space (returns 0, no error).  (Not Writable.)</span></div>
+<div class="line"><a id="l04744" name="l04744"></a><span class="lineno"> 4744</span><span class="comment">   *   - OPEN+CONNECTING -- we don&#39;t allow accumulating data in Send buffer (returns 0, no error).</span></div>
+<div class="line"><a id="l04745" name="l04745"></a><span class="lineno"> 4745</span><span class="comment">   *     (Not Writable.) */</span></div>
 <div class="line"><a id="l04746" name="l04746"></a><span class="lineno"> 4746</span> </div>
-<div class="line"><a id="l04747" name="l04747"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a2565b7c0bd82cad86eb168b62f8ffd9d"> 4747</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2565b7c0bd82cad86eb168b62f8ffd9d">Node::send_worker_check_state</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
-<div class="line"><a id="l04748" name="l04748"></a><span class="lineno"> 4748</span>{</div>
-<div class="line"><a id="l04749" name="l04749"></a><span class="lineno"> 4749</span>  <span class="comment">// See big comment block in Node::send() first.</span></div>
-<div class="line"><a id="l04750" name="l04750"></a><span class="lineno"> 4750</span> </div>
-<div class="line"><a id="l04751" name="l04751"></a><span class="lineno"> 4751</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l04747" name="l04747"></a><span class="lineno"> 4747</span>  <span class="keywordflow">return</span> (sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>)</div>
+<div class="line"><a id="l04748" name="l04748"></a><span class="lineno"> 4748</span>         || (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>)</div>
+<div class="line"><a id="l04749" name="l04749"></a><span class="lineno"> 4749</span>         || ((sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">Peer_socket::Open_sub_state::S_CONNECTED</a>)</div>
+<div class="line"><a id="l04750" name="l04750"></a><span class="lineno"> 4750</span>             &amp;&amp; <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a70d124ba678e2ab72f8c6d28140ca137">snd_buf_enqable</a>(sock));</div>
+<div class="line"><a id="l04751" name="l04751"></a><span class="lineno"> 4751</span>} <span class="comment">// Node::sock_is_writable()</span></div>
 <div class="line"><a id="l04752" name="l04752"></a><span class="lineno"> 4752</span> </div>
-<div class="line"><a id="l04753" name="l04753"></a><span class="lineno"> 4753</span>  <span class="comment">/* This method can be thought of as the chunk of the finite state machine that defines what</span></div>
-<div class="line"><a id="l04754" name="l04754"></a><span class="lineno"> 4754</span><span class="comment">   * happens when the &quot;user called send, adding at least 1 block to the send buffer&quot; (@todo: or any data</span></div>
-<div class="line"><a id="l04755" name="l04755"></a><span class="lineno"> 4755</span><span class="comment">   * at all, if in reliable mode?) event is defined.  Therefore, we will have a switch() that will handle every</span></div>
-<div class="line"><a id="l04756" name="l04756"></a><span class="lineno"> 4756</span><span class="comment">   * state and decide what should happen when that event fires in that state.</span></div>
-<div class="line"><a id="l04757" name="l04757"></a><span class="lineno"> 4757</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04758" name="l04758"></a><span class="lineno"> 4758</span><span class="comment">   * send() placed us onto thread W.  When send() did so, m_int_state (which it was not allowed to</span></div>
-<div class="line"><a id="l04759" name="l04759"></a><span class="lineno"> 4759</span><span class="comment">   * check, as only thread W can access it) was at least ESTABLISHED (since state was</span></div>
-<div class="line"><a id="l04760" name="l04760"></a><span class="lineno"> 4760</span><span class="comment">   * S_OPEN+S_CONNECTED, ensured via assert()).  Therefore, we can eliminate several states with</span></div>
-<div class="line"><a id="l04761" name="l04761"></a><span class="lineno"> 4761</span><span class="comment">   * assert()s: SYN_SENT, SYN_RCVD. */</span></div>
-<div class="line"><a id="l04762" name="l04762"></a><span class="lineno"> 4762</span> </div>
-<div class="line"><a id="l04763" name="l04763"></a><span class="lineno"> 4763</span>  <span class="keywordflow">switch</span> (sock-&gt;m_int_state)</div>
-<div class="line"><a id="l04764" name="l04764"></a><span class="lineno"> 4764</span>  {</div>
-<div class="line"><a id="l04765" name="l04765"></a><span class="lineno"> 4765</span>  <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>:</div>
-<div class="line"><a id="l04766" name="l04766"></a><span class="lineno"> 4766</span>    <span class="comment">// Mainstream case.</span></div>
-<div class="line"><a id="l04767" name="l04767"></a><span class="lineno"> 4767</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a10a92f11a2c9f218cdd9a55f282e79b1">send_worker</a>(sock, <span class="keyword">false</span>);</div>
-<div class="line"><a id="l04768" name="l04768"></a><span class="lineno"> 4768</span>    <span class="comment">/* ^-- defer_delta_check == false: because we were invoked from thread U != W, we are NOT</span></div>
-<div class="line"><a id="l04769" name="l04769"></a><span class="lineno"> 4769</span><span class="comment">     * invoked from async_low_lvl_recv().  Therefore, we will NOT perform</span></div>
-<div class="line"><a id="l04770" name="l04770"></a><span class="lineno"> 4770</span><span class="comment">     * event_set_all_check_delta(false) before the boost.asio handler exits.  Therefore boost.asio</span></div>
-<div class="line"><a id="l04771" name="l04771"></a><span class="lineno"> 4771</span><span class="comment">     * may sleep (block) before event_set_all_check_delta(false).  Therefore that would delay</span></div>
-<div class="line"><a id="l04772" name="l04772"></a><span class="lineno"> 4772</span><span class="comment">     * delivery of the Writable event to the user.  Therefore force the delta check immediately.</span></div>
-<div class="line"><a id="l04773" name="l04773"></a><span class="lineno"> 4773</span><span class="comment">     * See Node::m_sock_events doc header for details. */</span></div>
-<div class="line"><a id="l04774" name="l04774"></a><span class="lineno"> 4774</span>    <span class="keywordflow">break</span>;</div>
-<div class="line"><a id="l04775" name="l04775"></a><span class="lineno"> 4775</span>  <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::Int_state::S_CLOSED</a>:</div>
-<div class="line"><a id="l04776" name="l04776"></a><span class="lineno"> 4776</span>    <span class="comment">// Unlikely but legitimate.</span></div>
-<div class="line"><a id="l04777" name="l04777"></a><span class="lineno"> 4777</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l04778" name="l04778"></a><span class="lineno"> 4778</span>                  <span class="stringliteral">&quot;in state [&quot;</span> &lt;&lt; sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l04779" name="l04779"></a><span class="lineno"> 4779</span>                  <span class="stringliteral">&quot;closed before asynchronous send_worker() could proceed.&quot;</span>);</div>
+<div class="line"><a id="l04753" name="l04753"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a2565b7c0bd82cad86eb168b62f8ffd9d"> 4753</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2565b7c0bd82cad86eb168b62f8ffd9d">Node::send_worker_check_state</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
+<div class="line"><a id="l04754" name="l04754"></a><span class="lineno"> 4754</span>{</div>
+<div class="line"><a id="l04755" name="l04755"></a><span class="lineno"> 4755</span>  <span class="comment">// See big comment block in Node::send() first.</span></div>
+<div class="line"><a id="l04756" name="l04756"></a><span class="lineno"> 4756</span> </div>
+<div class="line"><a id="l04757" name="l04757"></a><span class="lineno"> 4757</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l04758" name="l04758"></a><span class="lineno"> 4758</span> </div>
+<div class="line"><a id="l04759" name="l04759"></a><span class="lineno"> 4759</span>  <span class="comment">/* This method can be thought of as the chunk of the finite state machine that defines what</span></div>
+<div class="line"><a id="l04760" name="l04760"></a><span class="lineno"> 4760</span><span class="comment">   * happens when the &quot;user called send, adding at least 1 block to the send buffer&quot; (@todo: or any data</span></div>
+<div class="line"><a id="l04761" name="l04761"></a><span class="lineno"> 4761</span><span class="comment">   * at all, if in reliable mode?) event is defined.  Therefore, we will have a switch() that will handle every</span></div>
+<div class="line"><a id="l04762" name="l04762"></a><span class="lineno"> 4762</span><span class="comment">   * state and decide what should happen when that event fires in that state.</span></div>
+<div class="line"><a id="l04763" name="l04763"></a><span class="lineno"> 4763</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04764" name="l04764"></a><span class="lineno"> 4764</span><span class="comment">   * send() placed us onto thread W.  When send() did so, m_int_state (which it was not allowed to</span></div>
+<div class="line"><a id="l04765" name="l04765"></a><span class="lineno"> 4765</span><span class="comment">   * check, as only thread W can access it) was at least ESTABLISHED (since state was</span></div>
+<div class="line"><a id="l04766" name="l04766"></a><span class="lineno"> 4766</span><span class="comment">   * S_OPEN+S_CONNECTED, ensured via assert()).  Therefore, we can eliminate several states with</span></div>
+<div class="line"><a id="l04767" name="l04767"></a><span class="lineno"> 4767</span><span class="comment">   * assert()s: SYN_SENT, SYN_RCVD. */</span></div>
+<div class="line"><a id="l04768" name="l04768"></a><span class="lineno"> 4768</span> </div>
+<div class="line"><a id="l04769" name="l04769"></a><span class="lineno"> 4769</span>  <span class="keywordflow">switch</span> (sock-&gt;m_int_state)</div>
+<div class="line"><a id="l04770" name="l04770"></a><span class="lineno"> 4770</span>  {</div>
+<div class="line"><a id="l04771" name="l04771"></a><span class="lineno"> 4771</span>  <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>:</div>
+<div class="line"><a id="l04772" name="l04772"></a><span class="lineno"> 4772</span>    <span class="comment">// Mainstream case.</span></div>
+<div class="line"><a id="l04773" name="l04773"></a><span class="lineno"> 4773</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a10a92f11a2c9f218cdd9a55f282e79b1">send_worker</a>(sock, <span class="keyword">false</span>);</div>
+<div class="line"><a id="l04774" name="l04774"></a><span class="lineno"> 4774</span>    <span class="comment">/* ^-- defer_delta_check == false: because we were invoked from thread U != W, we are NOT</span></div>
+<div class="line"><a id="l04775" name="l04775"></a><span class="lineno"> 4775</span><span class="comment">     * invoked from async_low_lvl_recv().  Therefore, we will NOT perform</span></div>
+<div class="line"><a id="l04776" name="l04776"></a><span class="lineno"> 4776</span><span class="comment">     * event_set_all_check_delta(false) before the boost.asio handler exits.  Therefore boost.asio</span></div>
+<div class="line"><a id="l04777" name="l04777"></a><span class="lineno"> 4777</span><span class="comment">     * may sleep (block) before event_set_all_check_delta(false).  Therefore that would delay</span></div>
+<div class="line"><a id="l04778" name="l04778"></a><span class="lineno"> 4778</span><span class="comment">     * delivery of the Writable event to the user.  Therefore force the delta check immediately.</span></div>
+<div class="line"><a id="l04779" name="l04779"></a><span class="lineno"> 4779</span><span class="comment">     * See Node::m_sock_events doc header for details. */</span></div>
 <div class="line"><a id="l04780" name="l04780"></a><span class="lineno"> 4780</span>    <span class="keywordflow">break</span>;</div>
-<div class="line"><a id="l04781" name="l04781"></a><span class="lineno"> 4781</span>  <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">Peer_socket::Int_state::S_SYN_SENT</a>:</div>
-<div class="line"><a id="l04782" name="l04782"></a><span class="lineno"> 4782</span>  <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">Peer_socket::Int_state::S_SYN_RCVD</a>:</div>
-<div class="line"><a id="l04783" name="l04783"></a><span class="lineno"> 4783</span>    <span class="comment">// Crash.  See above reasoning.</span></div>
-<div class="line"><a id="l04784" name="l04784"></a><span class="lineno"> 4784</span>    <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l04785" name="l04785"></a><span class="lineno"> 4785</span>                     <span class="stringliteral">&quot;in state [&quot;</span> &lt;&lt; sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l04786" name="l04786"></a><span class="lineno"> 4786</span>                     <span class="stringliteral">&quot;somehow had send() called on it.&quot;</span>);</div>
-<div class="line"><a id="l04787" name="l04787"></a><span class="lineno"> 4787</span>    assert(<span class="keyword">false</span>);</div>
-<div class="line"><a id="l04788" name="l04788"></a><span class="lineno"> 4788</span>    <span class="keywordflow">break</span>;</div>
-<div class="line"><a id="l04789" name="l04789"></a><span class="lineno"> 4789</span>  } <span class="comment">// switch (sock-&gt;m_int_state)</span></div>
-<div class="line"><a id="l04790" name="l04790"></a><span class="lineno"> 4790</span>} <span class="comment">// Node::send_worker_check_state()</span></div>
-<div class="line"><a id="l04791" name="l04791"></a><span class="lineno"> 4791</span> </div>
-<div class="line"><a id="l04792" name="l04792"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a10a92f11a2c9f218cdd9a55f282e79b1"> 4792</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a10a92f11a2c9f218cdd9a55f282e79b1">Node::send_worker</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keywordtype">bool</span> defer_delta_check)</div>
-<div class="line"><a id="l04793" name="l04793"></a><span class="lineno"> 4793</span>{</div>
-<div class="line"><a id="l04794" name="l04794"></a><span class="lineno"> 4794</span>  <span class="keyword">using </span>boost::asio::buffer;</div>
-<div class="line"><a id="l04795" name="l04795"></a><span class="lineno"> 4795</span>  <span class="keyword">using </span>boost::next;</div>
-<div class="line"><a id="l04796" name="l04796"></a><span class="lineno"> 4796</span>  <span class="keyword">using </span>boost::ratio;</div>
-<div class="line"><a id="l04797" name="l04797"></a><span class="lineno"> 4797</span>  <span class="keyword">using </span>boost::ratio_string;</div>
-<div class="line"><a id="l04798" name="l04798"></a><span class="lineno"> 4798</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
-<div class="line"><a id="l04799" name="l04799"></a><span class="lineno"> 4799</span>  <span class="keyword">using </span>boost::chrono::round;</div>
-<div class="line"><a id="l04800" name="l04800"></a><span class="lineno"> 4800</span>  <span class="keyword">using </span>boost::shared_ptr;</div>
-<div class="line"><a id="l04801" name="l04801"></a><span class="lineno"> 4801</span>  <span class="keyword">using </span>std::list;</div>
-<div class="line"><a id="l04802" name="l04802"></a><span class="lineno"> 4802</span> </div>
-<div class="line"><a id="l04803" name="l04803"></a><span class="lineno"> 4803</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l04804" name="l04804"></a><span class="lineno"> 4804</span> </div>
-<div class="line"><a id="l04805" name="l04805"></a><span class="lineno"> 4805</span>  <span class="comment">// See big comment block in Node::send() first.</span></div>
-<div class="line"><a id="l04806" name="l04806"></a><span class="lineno"> 4806</span> </div>
-<div class="line"><a id="l04807" name="l04807"></a><span class="lineno"> 4807</span>  <span class="comment">// Pre-condition.</span></div>
-<div class="line"><a id="l04808" name="l04808"></a><span class="lineno"> 4808</span>  assert(sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>);</div>
-<div class="line"><a id="l04809" name="l04809"></a><span class="lineno"> 4809</span> </div>
-<div class="line"><a id="l04810" name="l04810"></a><span class="lineno"> 4810</span>  <span class="comment">/* We are about to potentially send a bunch of DATA packets.  Before sending a given packet, we</span></div>
-<div class="line"><a id="l04811" name="l04811"></a><span class="lineno"> 4811</span><span class="comment">   * will call can_send() which will ask the congestion control module whether there is space in</span></div>
-<div class="line"><a id="l04812" name="l04812"></a><span class="lineno"> 4812</span><span class="comment">   * what it thinks is the available pipe and return true if so (as well as check rcv_wnd, ensuring</span></div>
-<div class="line"><a id="l04813" name="l04813"></a><span class="lineno"> 4813</span><span class="comment">   * the receiver&#39;s Receive buffer can handle the data once they arrive).  However, how it answers</span></div>
-<div class="line"><a id="l04814" name="l04814"></a><span class="lineno"> 4814</span><span class="comment">   * that question depends on the size of the pipe (m_snd_cong_ctl-&gt;congestion_window_bytes(),</span></div>
-<div class="line"><a id="l04815" name="l04815"></a><span class="lineno"> 4815</span><span class="comment">   * a/k/a CWND). Many (most?) congestion control modules will want to reduce CWND when a</span></div>
-<div class="line"><a id="l04816" name="l04816"></a><span class="lineno"> 4816</span><span class="comment">   * connection has been idle -- not sending anything, due to no data to be sent in Send buffer --</span></div>
-<div class="line"><a id="l04817" name="l04817"></a><span class="lineno"> 4817</span><span class="comment">   * for a while.  Thus we must call m_snd_cong_ctl-&gt;on_idle_timeout() if we&#39;ve hit Idle Timeout.</span></div>
-<div class="line"><a id="l04818" name="l04818"></a><span class="lineno"> 4818</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04819" name="l04819"></a><span class="lineno"> 4819</span><span class="comment">   * The definition of Idle Timeout we use is from TCP RFC 5681-4.1 (and DCCP CCID 2 RFC 4341-5.1).</span></div>
-<div class="line"><a id="l04820" name="l04820"></a><span class="lineno"> 4820</span><span class="comment">   * It&#39;s simple: Idle Timeout is DTO (Drop Timeout) time units since a DATA packet has been last</span></div>
-<div class="line"><a id="l04821" name="l04821"></a><span class="lineno"> 4821</span><span class="comment">   * sent.  While I basically grasp the intuition behind it (if a DTO since even the last-sent</span></div>
-<div class="line"><a id="l04822" name="l04822"></a><span class="lineno"> 4822</span><span class="comment">   * packet has expired, and no retransmission/further transmission has occurred, then there must</span></div>
-<div class="line"><a id="l04823" name="l04823"></a><span class="lineno"> 4823</span><span class="comment">   * have been no more data for a while), I can&#39;t quite prove to myself that it&#39;s exactly right,</span></div>
-<div class="line"><a id="l04824" name="l04824"></a><span class="lineno"> 4824</span><span class="comment">   * mostly due to the fact that DTO may change over time.  It&#39;s probably right though, as RFC 4341</span></div>
-<div class="line"><a id="l04825" name="l04825"></a><span class="lineno"> 4825</span><span class="comment">   * recommends it, even though that protocol is closer to NetFlow than TCP (full selective ACKs).</span></div>
-<div class="line"><a id="l04826" name="l04826"></a><span class="lineno"> 4826</span><span class="comment">   * Anyway, if we see too many false Idle timeouts, revisit this.</span></div>
-<div class="line"><a id="l04827" name="l04827"></a><span class="lineno"> 4827</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04828" name="l04828"></a><span class="lineno"> 4828</span><span class="comment">   * Why check this now?  Why not start a proper timer, each time packet is sent, instead and just</span></div>
-<div class="line"><a id="l04829" name="l04829"></a><span class="lineno"> 4829</span><span class="comment">   * inform m_snd_cong_ctl when it fires?  Answer: timer management is somewhat of a pain in the ass</span></div>
-<div class="line"><a id="l04830" name="l04830"></a><span class="lineno"> 4830</span><span class="comment">   * (as you can see in our other various timers, such as m_snd_drop_timer).  Here we have an opportunity</span></div>
-<div class="line"><a id="l04831" name="l04831"></a><span class="lineno"> 4831</span><span class="comment">   * to simply check the condition and affect CWND right before CWND would be used anyway</span></div>
-<div class="line"><a id="l04832" name="l04832"></a><span class="lineno"> 4832</span><span class="comment">   * (can_send()).  It&#39;s simpler, and the performance impact is negligible (it&#39;s just a</span></div>
-<div class="line"><a id="l04833" name="l04833"></a><span class="lineno"> 4833</span><span class="comment">   * Fine_clock::now() call and a comparison).  You ask, why not do the same for other timers</span></div>
-<div class="line"><a id="l04834" name="l04834"></a><span class="lineno"> 4834</span><span class="comment">   * then, in particular the Drop Timer?  Answer: for Drop Timer, we really need to know exactly</span></div>
-<div class="line"><a id="l04835" name="l04835"></a><span class="lineno"> 4835</span><span class="comment">   * when it fires, so that we can Drop In-flight packets right then and possibly send more</span></div>
-<div class="line"><a id="l04836" name="l04836"></a><span class="lineno"> 4836</span><span class="comment">   * packets (among other things).  In this case there is no such requirement; we only care about</span></div>
-<div class="line"><a id="l04837" name="l04837"></a><span class="lineno"> 4837</span><span class="comment">   * whether the Idle Timeout has tripped when we&#39;re about to send something. */</span></div>
-<div class="line"><a id="l04838" name="l04838"></a><span class="lineno"> 4838</span> </div>
-<div class="line"><a id="l04839" name="l04839"></a><span class="lineno"> 4839</span>  <span class="comment">/* To avoid a very close race between DTO and idle timeout, apply a slight factor of &gt; 1 to DTO.</span></div>
-<div class="line"><a id="l04840" name="l04840"></a><span class="lineno"> 4840</span><span class="comment">   * Using boost::ratio&lt;&gt; instead of a double or something for same reason as in</span></div>
-<div class="line"><a id="l04841" name="l04841"></a><span class="lineno"> 4841</span><span class="comment">   * new_round_trip_time_sample(). */</span></div>
-<div class="line"><a id="l04842" name="l04842"></a><span class="lineno"> 4842</span>  <span class="keyword">using </span>Idle_timeout_dto_factor = ratio&lt;110, 100&gt;;</div>
-<div class="line"><a id="l04843" name="l04843"></a><span class="lineno"> 4843</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> idle_timeout</div>
-<div class="line"><a id="l04844" name="l04844"></a><span class="lineno"> 4844</span>    = sock-&gt;m_snd_drop_timeout * Idle_timeout_dto_factor::num / Idle_timeout_dto_factor::den;</div>
-<div class="line"><a id="l04845" name="l04845"></a><span class="lineno"> 4845</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> since_last_send = Fine_clock::now() - sock-&gt;m_snd_last_data_sent_when;</div>
-<div class="line"><a id="l04846" name="l04846"></a><span class="lineno"> 4846</span> </div>
-<div class="line"><a id="l04847" name="l04847"></a><span class="lineno"> 4847</span>  <span class="keywordflow">if</span> ((sock-&gt;m_snd_last_data_sent_when != <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>()) &amp;&amp; (since_last_send &gt; idle_timeout))</div>
-<div class="line"><a id="l04848" name="l04848"></a><span class="lineno"> 4848</span>  {</div>
-<div class="line"><a id="l04849" name="l04849"></a><span class="lineno"> 4849</span>    <span class="comment">// Arguable if this should be INFO or TRACE.  We&#39;ll see.</span></div>
-<div class="line"><a id="l04850" name="l04850"></a><span class="lineno"> 4850</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Idle timeout triggered for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l04851" name="l04851"></a><span class="lineno"> 4851</span>                  <span class="stringliteral">&quot;last activity [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(since_last_send) &lt;&lt; <span class="stringliteral">&quot;] ago &quot;</span></div>
-<div class="line"><a id="l04852" name="l04852"></a><span class="lineno"> 4852</span>                  <span class="stringliteral">&quot;exceeds idle timeout [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(idle_timeout) &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l04853" name="l04853"></a><span class="lineno"> 4853</span>                  <span class="stringliteral">&quot;= &quot;</span> &lt;&lt; (ratio_string&lt;Idle_timeout_dto_factor, char&gt;::prefix()) &lt;&lt; <span class="stringliteral">&quot; x &quot;</span></div>
-<div class="line"><a id="l04854" name="l04854"></a><span class="lineno"> 4854</span>                  <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(sock-&gt;m_snd_drop_timeout) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l04855" name="l04855"></a><span class="lineno"> 4855</span>    sock-&gt;m_snd_cong_ctl-&gt;on_idle_timeout();</div>
-<div class="line"><a id="l04856" name="l04856"></a><span class="lineno"> 4856</span>    sock-&gt;m_snd_stats.idle_timeout();</div>
-<div class="line"><a id="l04857" name="l04857"></a><span class="lineno"> 4857</span>  }</div>
-<div class="line"><a id="l04858" name="l04858"></a><span class="lineno"> 4858</span> </div>
-<div class="line"><a id="l04859" name="l04859"></a><span class="lineno"> 4859</span>  <span class="comment">/* Check networking conditions (presumably congestion control) and flow control (rcv_wnd).</span></div>
-<div class="line"><a id="l04860" name="l04860"></a><span class="lineno"> 4860</span><span class="comment">   * Ideally this would always be true, but then we&#39;d overwhelm the link when send() is invoked on</span></div>
-<div class="line"><a id="l04861" name="l04861"></a><span class="lineno"> 4861</span><span class="comment">   * large amounts of data and/or repeatedly. */</span></div>
-<div class="line"><a id="l04862" name="l04862"></a><span class="lineno"> 4862</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657">can_send</a>(sock))</div>
-<div class="line"><a id="l04863" name="l04863"></a><span class="lineno"> 4863</span>  {</div>
-<div class="line"><a id="l04864" name="l04864"></a><span class="lineno"> 4864</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
-<div class="line"><a id="l04865" name="l04865"></a><span class="lineno"> 4865</span>                   <span class="stringliteral">&quot;Initial check: can_send() is false.&quot;</span>);</div>
-<div class="line"><a id="l04866" name="l04866"></a><span class="lineno"> 4866</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l04867" name="l04867"></a><span class="lineno"> 4867</span>  }</div>
-<div class="line"><a id="l04868" name="l04868"></a><span class="lineno"> 4868</span>  <span class="comment">// else can send if there are data to send.</span></div>
-<div class="line"><a id="l04869" name="l04869"></a><span class="lineno"> 4869</span> </div>
-<div class="line"><a id="l04870" name="l04870"></a><span class="lineno"> 4870</span>  <span class="comment">/* Didn&#39;t lock sock above, as can_send() depends only on internal state, which is accessed from</span></div>
-<div class="line"><a id="l04871" name="l04871"></a><span class="lineno"> 4871</span><span class="comment">   * thread W only.  This is an optimization to avoid thread contention (with non-W send()s) for the</span></div>
-<div class="line"><a id="l04872" name="l04872"></a><span class="lineno"> 4872</span><span class="comment">   * lock in the case when congestion control is preventing sends.</span></div>
-<div class="line"><a id="l04873" name="l04873"></a><span class="lineno"> 4873</span><span class="comment">   *</span></div>
-<div class="line"><a id="l04874" name="l04874"></a><span class="lineno"> 4874</span><span class="comment">   * Have to lock now, for sock-&gt;m_snd_buf access (at least). */</span></div>
+<div class="line"><a id="l04781" name="l04781"></a><span class="lineno"> 4781</span>  <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::Int_state::S_CLOSED</a>:</div>
+<div class="line"><a id="l04782" name="l04782"></a><span class="lineno"> 4782</span>    <span class="comment">// Unlikely but legitimate.</span></div>
+<div class="line"><a id="l04783" name="l04783"></a><span class="lineno"> 4783</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l04784" name="l04784"></a><span class="lineno"> 4784</span>                  <span class="stringliteral">&quot;in state [&quot;</span> &lt;&lt; sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l04785" name="l04785"></a><span class="lineno"> 4785</span>                  <span class="stringliteral">&quot;closed before asynchronous send_worker() could proceed.&quot;</span>);</div>
+<div class="line"><a id="l04786" name="l04786"></a><span class="lineno"> 4786</span>    <span class="keywordflow">break</span>;</div>
+<div class="line"><a id="l04787" name="l04787"></a><span class="lineno"> 4787</span>  <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">Peer_socket::Int_state::S_SYN_SENT</a>:</div>
+<div class="line"><a id="l04788" name="l04788"></a><span class="lineno"> 4788</span>  <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">Peer_socket::Int_state::S_SYN_RCVD</a>:</div>
+<div class="line"><a id="l04789" name="l04789"></a><span class="lineno"> 4789</span>    <span class="comment">// Crash.  See above reasoning.</span></div>
+<div class="line"><a id="l04790" name="l04790"></a><span class="lineno"> 4790</span>    <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l04791" name="l04791"></a><span class="lineno"> 4791</span>                     <span class="stringliteral">&quot;in state [&quot;</span> &lt;&lt; sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l04792" name="l04792"></a><span class="lineno"> 4792</span>                     <span class="stringliteral">&quot;somehow had send() called on it.&quot;</span>);</div>
+<div class="line"><a id="l04793" name="l04793"></a><span class="lineno"> 4793</span>    assert(<span class="keyword">false</span>);</div>
+<div class="line"><a id="l04794" name="l04794"></a><span class="lineno"> 4794</span>    <span class="keywordflow">break</span>;</div>
+<div class="line"><a id="l04795" name="l04795"></a><span class="lineno"> 4795</span>  } <span class="comment">// switch (sock-&gt;m_int_state)</span></div>
+<div class="line"><a id="l04796" name="l04796"></a><span class="lineno"> 4796</span>} <span class="comment">// Node::send_worker_check_state()</span></div>
+<div class="line"><a id="l04797" name="l04797"></a><span class="lineno"> 4797</span> </div>
+<div class="line"><a id="l04798" name="l04798"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a10a92f11a2c9f218cdd9a55f282e79b1"> 4798</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a10a92f11a2c9f218cdd9a55f282e79b1">Node::send_worker</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keywordtype">bool</span> defer_delta_check)</div>
+<div class="line"><a id="l04799" name="l04799"></a><span class="lineno"> 4799</span>{</div>
+<div class="line"><a id="l04800" name="l04800"></a><span class="lineno"> 4800</span>  <span class="keyword">using </span>boost::asio::buffer;</div>
+<div class="line"><a id="l04801" name="l04801"></a><span class="lineno"> 4801</span>  <span class="keyword">using </span>boost::next;</div>
+<div class="line"><a id="l04802" name="l04802"></a><span class="lineno"> 4802</span>  <span class="keyword">using </span>boost::ratio;</div>
+<div class="line"><a id="l04803" name="l04803"></a><span class="lineno"> 4803</span>  <span class="keyword">using </span>boost::ratio_string;</div>
+<div class="line"><a id="l04804" name="l04804"></a><span class="lineno"> 4804</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
+<div class="line"><a id="l04805" name="l04805"></a><span class="lineno"> 4805</span>  <span class="keyword">using </span>boost::chrono::round;</div>
+<div class="line"><a id="l04806" name="l04806"></a><span class="lineno"> 4806</span>  <span class="keyword">using </span>boost::shared_ptr;</div>
+<div class="line"><a id="l04807" name="l04807"></a><span class="lineno"> 4807</span>  <span class="keyword">using </span>std::list;</div>
+<div class="line"><a id="l04808" name="l04808"></a><span class="lineno"> 4808</span> </div>
+<div class="line"><a id="l04809" name="l04809"></a><span class="lineno"> 4809</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l04810" name="l04810"></a><span class="lineno"> 4810</span> </div>
+<div class="line"><a id="l04811" name="l04811"></a><span class="lineno"> 4811</span>  <span class="comment">// See big comment block in Node::send() first.</span></div>
+<div class="line"><a id="l04812" name="l04812"></a><span class="lineno"> 4812</span> </div>
+<div class="line"><a id="l04813" name="l04813"></a><span class="lineno"> 4813</span>  <span class="comment">// Pre-condition.</span></div>
+<div class="line"><a id="l04814" name="l04814"></a><span class="lineno"> 4814</span>  assert(sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>);</div>
+<div class="line"><a id="l04815" name="l04815"></a><span class="lineno"> 4815</span> </div>
+<div class="line"><a id="l04816" name="l04816"></a><span class="lineno"> 4816</span>  <span class="comment">/* We are about to potentially send a bunch of DATA packets.  Before sending a given packet, we</span></div>
+<div class="line"><a id="l04817" name="l04817"></a><span class="lineno"> 4817</span><span class="comment">   * will call can_send() which will ask the congestion control module whether there is space in</span></div>
+<div class="line"><a id="l04818" name="l04818"></a><span class="lineno"> 4818</span><span class="comment">   * what it thinks is the available pipe and return true if so (as well as check rcv_wnd, ensuring</span></div>
+<div class="line"><a id="l04819" name="l04819"></a><span class="lineno"> 4819</span><span class="comment">   * the receiver&#39;s Receive buffer can handle the data once they arrive).  However, how it answers</span></div>
+<div class="line"><a id="l04820" name="l04820"></a><span class="lineno"> 4820</span><span class="comment">   * that question depends on the size of the pipe (m_snd_cong_ctl-&gt;congestion_window_bytes(),</span></div>
+<div class="line"><a id="l04821" name="l04821"></a><span class="lineno"> 4821</span><span class="comment">   * a/k/a CWND). Many (most?) congestion control modules will want to reduce CWND when a</span></div>
+<div class="line"><a id="l04822" name="l04822"></a><span class="lineno"> 4822</span><span class="comment">   * connection has been idle -- not sending anything, due to no data to be sent in Send buffer --</span></div>
+<div class="line"><a id="l04823" name="l04823"></a><span class="lineno"> 4823</span><span class="comment">   * for a while.  Thus we must call m_snd_cong_ctl-&gt;on_idle_timeout() if we&#39;ve hit Idle Timeout.</span></div>
+<div class="line"><a id="l04824" name="l04824"></a><span class="lineno"> 4824</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04825" name="l04825"></a><span class="lineno"> 4825</span><span class="comment">   * The definition of Idle Timeout we use is from TCP RFC 5681-4.1 (and DCCP CCID 2 RFC 4341-5.1).</span></div>
+<div class="line"><a id="l04826" name="l04826"></a><span class="lineno"> 4826</span><span class="comment">   * It&#39;s simple: Idle Timeout is DTO (Drop Timeout) time units since a DATA packet has been last</span></div>
+<div class="line"><a id="l04827" name="l04827"></a><span class="lineno"> 4827</span><span class="comment">   * sent.  While I basically grasp the intuition behind it (if a DTO since even the last-sent</span></div>
+<div class="line"><a id="l04828" name="l04828"></a><span class="lineno"> 4828</span><span class="comment">   * packet has expired, and no retransmission/further transmission has occurred, then there must</span></div>
+<div class="line"><a id="l04829" name="l04829"></a><span class="lineno"> 4829</span><span class="comment">   * have been no more data for a while), I can&#39;t quite prove to myself that it&#39;s exactly right,</span></div>
+<div class="line"><a id="l04830" name="l04830"></a><span class="lineno"> 4830</span><span class="comment">   * mostly due to the fact that DTO may change over time.  It&#39;s probably right though, as RFC 4341</span></div>
+<div class="line"><a id="l04831" name="l04831"></a><span class="lineno"> 4831</span><span class="comment">   * recommends it, even though that protocol is closer to NetFlow than TCP (full selective ACKs).</span></div>
+<div class="line"><a id="l04832" name="l04832"></a><span class="lineno"> 4832</span><span class="comment">   * Anyway, if we see too many false Idle timeouts, revisit this.</span></div>
+<div class="line"><a id="l04833" name="l04833"></a><span class="lineno"> 4833</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04834" name="l04834"></a><span class="lineno"> 4834</span><span class="comment">   * Why check this now?  Why not start a proper timer, each time packet is sent, instead and just</span></div>
+<div class="line"><a id="l04835" name="l04835"></a><span class="lineno"> 4835</span><span class="comment">   * inform m_snd_cong_ctl when it fires?  Answer: timer management is somewhat of a pain in the ass</span></div>
+<div class="line"><a id="l04836" name="l04836"></a><span class="lineno"> 4836</span><span class="comment">   * (as you can see in our other various timers, such as m_snd_drop_timer).  Here we have an opportunity</span></div>
+<div class="line"><a id="l04837" name="l04837"></a><span class="lineno"> 4837</span><span class="comment">   * to simply check the condition and affect CWND right before CWND would be used anyway</span></div>
+<div class="line"><a id="l04838" name="l04838"></a><span class="lineno"> 4838</span><span class="comment">   * (can_send()).  It&#39;s simpler, and the performance impact is negligible (it&#39;s just a</span></div>
+<div class="line"><a id="l04839" name="l04839"></a><span class="lineno"> 4839</span><span class="comment">   * Fine_clock::now() call and a comparison).  You ask, why not do the same for other timers</span></div>
+<div class="line"><a id="l04840" name="l04840"></a><span class="lineno"> 4840</span><span class="comment">   * then, in particular the Drop Timer?  Answer: for Drop Timer, we really need to know exactly</span></div>
+<div class="line"><a id="l04841" name="l04841"></a><span class="lineno"> 4841</span><span class="comment">   * when it fires, so that we can Drop In-flight packets right then and possibly send more</span></div>
+<div class="line"><a id="l04842" name="l04842"></a><span class="lineno"> 4842</span><span class="comment">   * packets (among other things).  In this case there is no such requirement; we only care about</span></div>
+<div class="line"><a id="l04843" name="l04843"></a><span class="lineno"> 4843</span><span class="comment">   * whether the Idle Timeout has tripped when we&#39;re about to send something. */</span></div>
+<div class="line"><a id="l04844" name="l04844"></a><span class="lineno"> 4844</span> </div>
+<div class="line"><a id="l04845" name="l04845"></a><span class="lineno"> 4845</span>  <span class="comment">/* To avoid a very close race between DTO and idle timeout, apply a slight factor of &gt; 1 to DTO.</span></div>
+<div class="line"><a id="l04846" name="l04846"></a><span class="lineno"> 4846</span><span class="comment">   * Using boost::ratio&lt;&gt; instead of a double or something for same reason as in</span></div>
+<div class="line"><a id="l04847" name="l04847"></a><span class="lineno"> 4847</span><span class="comment">   * new_round_trip_time_sample(). */</span></div>
+<div class="line"><a id="l04848" name="l04848"></a><span class="lineno"> 4848</span>  <span class="keyword">using </span>Idle_timeout_dto_factor = ratio&lt;110, 100&gt;;</div>
+<div class="line"><a id="l04849" name="l04849"></a><span class="lineno"> 4849</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> idle_timeout</div>
+<div class="line"><a id="l04850" name="l04850"></a><span class="lineno"> 4850</span>    = sock-&gt;m_snd_drop_timeout * Idle_timeout_dto_factor::num / Idle_timeout_dto_factor::den;</div>
+<div class="line"><a id="l04851" name="l04851"></a><span class="lineno"> 4851</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> since_last_send = Fine_clock::now() - sock-&gt;m_snd_last_data_sent_when;</div>
+<div class="line"><a id="l04852" name="l04852"></a><span class="lineno"> 4852</span> </div>
+<div class="line"><a id="l04853" name="l04853"></a><span class="lineno"> 4853</span>  <span class="keywordflow">if</span> ((sock-&gt;m_snd_last_data_sent_when != <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>()) &amp;&amp; (since_last_send &gt; idle_timeout))</div>
+<div class="line"><a id="l04854" name="l04854"></a><span class="lineno"> 4854</span>  {</div>
+<div class="line"><a id="l04855" name="l04855"></a><span class="lineno"> 4855</span>    <span class="comment">// Arguable if this should be INFO or TRACE.  We&#39;ll see.</span></div>
+<div class="line"><a id="l04856" name="l04856"></a><span class="lineno"> 4856</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Idle timeout triggered for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l04857" name="l04857"></a><span class="lineno"> 4857</span>                  <span class="stringliteral">&quot;last activity [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(since_last_send) &lt;&lt; <span class="stringliteral">&quot;] ago &quot;</span></div>
+<div class="line"><a id="l04858" name="l04858"></a><span class="lineno"> 4858</span>                  <span class="stringliteral">&quot;exceeds idle timeout [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(idle_timeout) &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l04859" name="l04859"></a><span class="lineno"> 4859</span>                  <span class="stringliteral">&quot;= &quot;</span> &lt;&lt; (ratio_string&lt;Idle_timeout_dto_factor, char&gt;::prefix()) &lt;&lt; <span class="stringliteral">&quot; x &quot;</span></div>
+<div class="line"><a id="l04860" name="l04860"></a><span class="lineno"> 4860</span>                  <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(sock-&gt;m_snd_drop_timeout) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l04861" name="l04861"></a><span class="lineno"> 4861</span>    sock-&gt;m_snd_cong_ctl-&gt;on_idle_timeout();</div>
+<div class="line"><a id="l04862" name="l04862"></a><span class="lineno"> 4862</span>    sock-&gt;m_snd_stats.idle_timeout();</div>
+<div class="line"><a id="l04863" name="l04863"></a><span class="lineno"> 4863</span>  }</div>
+<div class="line"><a id="l04864" name="l04864"></a><span class="lineno"> 4864</span> </div>
+<div class="line"><a id="l04865" name="l04865"></a><span class="lineno"> 4865</span>  <span class="comment">/* Check networking conditions (presumably congestion control) and flow control (rcv_wnd).</span></div>
+<div class="line"><a id="l04866" name="l04866"></a><span class="lineno"> 4866</span><span class="comment">   * Ideally this would always be true, but then we&#39;d overwhelm the link when send() is invoked on</span></div>
+<div class="line"><a id="l04867" name="l04867"></a><span class="lineno"> 4867</span><span class="comment">   * large amounts of data and/or repeatedly. */</span></div>
+<div class="line"><a id="l04868" name="l04868"></a><span class="lineno"> 4868</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657">can_send</a>(sock))</div>
+<div class="line"><a id="l04869" name="l04869"></a><span class="lineno"> 4869</span>  {</div>
+<div class="line"><a id="l04870" name="l04870"></a><span class="lineno"> 4870</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
+<div class="line"><a id="l04871" name="l04871"></a><span class="lineno"> 4871</span>                   <span class="stringliteral">&quot;Initial check: can_send() is false.&quot;</span>);</div>
+<div class="line"><a id="l04872" name="l04872"></a><span class="lineno"> 4872</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l04873" name="l04873"></a><span class="lineno"> 4873</span>  }</div>
+<div class="line"><a id="l04874" name="l04874"></a><span class="lineno"> 4874</span>  <span class="comment">// else can send if there are data to send.</span></div>
 <div class="line"><a id="l04875" name="l04875"></a><span class="lineno"> 4875</span> </div>
-<div class="line"><a id="l04876" name="l04876"></a><span class="lineno"> 4876</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> rexmit_on = sock-&gt;rexmit_on();</div>
-<div class="line"><a id="l04877" name="l04877"></a><span class="lineno"> 4877</span>  <span class="keywordtype">bool</span> writable; <span class="comment">// See below.</span></div>
-<div class="line"><a id="l04878" name="l04878"></a><span class="lineno"> 4878</span>  {</div>
-<div class="line"><a id="l04879" name="l04879"></a><span class="lineno"> 4879</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex);</div>
-<div class="line"><a id="l04880" name="l04880"></a><span class="lineno"> 4880</span> </div>
-<div class="line"><a id="l04881" name="l04881"></a><span class="lineno"> 4881</span>    <span class="comment">// Check whether enough data in retransmission queue or snd_buf to send a packet.</span></div>
-<div class="line"><a id="l04882" name="l04882"></a><span class="lineno"> 4882</span>    <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">snd_deqable</a>(sock))</div>
-<div class="line"><a id="l04883" name="l04883"></a><span class="lineno"> 4883</span>    {</div>
-<div class="line"><a id="l04884" name="l04884"></a><span class="lineno"> 4884</span>      <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
-<div class="line"><a id="l04885" name="l04885"></a><span class="lineno"> 4885</span>                     <span class="stringliteral">&quot;Initial check: can_send() is true, but no data to send.&quot;</span>);</div>
-<div class="line"><a id="l04886" name="l04886"></a><span class="lineno"> 4886</span>      <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l04887" name="l04887"></a><span class="lineno"> 4887</span>    }</div>
-<div class="line"><a id="l04888" name="l04888"></a><span class="lineno"> 4888</span>    <span class="comment">// else can send &gt;= 1 packet.</span></div>
-<div class="line"><a id="l04889" name="l04889"></a><span class="lineno"> 4889</span> </div>
-<div class="line"><a id="l04890" name="l04890"></a><span class="lineno"> 4890</span>    <span class="comment">// For brevity and a bit of speed:</span></div>
-<div class="line"><a id="l04891" name="l04891"></a><span class="lineno"> 4891</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Socket__buffer.html">Socket_buffer</a>&amp; snd_buf = sock-&gt;m_snd_buf;</div>
-<div class="line"><a id="l04892" name="l04892"></a><span class="lineno"> 4892</span>    list&lt;Peer_socket::Sent_packet::Ptr&gt;&amp; rexmit_q = sock-&gt;m_snd_rexmit_q;</div>
-<div class="line"><a id="l04893" name="l04893"></a><span class="lineno"> 4893</span>    <span class="keywordtype">size_t</span>&amp; rexmit_q_size = sock-&gt;m_snd_rexmit_q_size;</div>
-<div class="line"><a id="l04894" name="l04894"></a><span class="lineno"> 4894</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; snd_next_seq_num = sock-&gt;m_snd_next_seq_num;</div>
+<div class="line"><a id="l04876" name="l04876"></a><span class="lineno"> 4876</span>  <span class="comment">/* Didn&#39;t lock sock above, as can_send() depends only on internal state, which is accessed from</span></div>
+<div class="line"><a id="l04877" name="l04877"></a><span class="lineno"> 4877</span><span class="comment">   * thread W only.  This is an optimization to avoid thread contention (with non-W send()s) for the</span></div>
+<div class="line"><a id="l04878" name="l04878"></a><span class="lineno"> 4878</span><span class="comment">   * lock in the case when congestion control is preventing sends.</span></div>
+<div class="line"><a id="l04879" name="l04879"></a><span class="lineno"> 4879</span><span class="comment">   *</span></div>
+<div class="line"><a id="l04880" name="l04880"></a><span class="lineno"> 4880</span><span class="comment">   * Have to lock now, for sock-&gt;m_snd_buf access (at least). */</span></div>
+<div class="line"><a id="l04881" name="l04881"></a><span class="lineno"> 4881</span> </div>
+<div class="line"><a id="l04882" name="l04882"></a><span class="lineno"> 4882</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> rexmit_on = sock-&gt;rexmit_on();</div>
+<div class="line"><a id="l04883" name="l04883"></a><span class="lineno"> 4883</span>  <span class="keywordtype">bool</span> writable; <span class="comment">// See below.</span></div>
+<div class="line"><a id="l04884" name="l04884"></a><span class="lineno"> 4884</span>  {</div>
+<div class="line"><a id="l04885" name="l04885"></a><span class="lineno"> 4885</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex);</div>
+<div class="line"><a id="l04886" name="l04886"></a><span class="lineno"> 4886</span> </div>
+<div class="line"><a id="l04887" name="l04887"></a><span class="lineno"> 4887</span>    <span class="comment">// Check whether enough data in retransmission queue or snd_buf to send a packet.</span></div>
+<div class="line"><a id="l04888" name="l04888"></a><span class="lineno"> 4888</span>    <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">snd_deqable</a>(sock))</div>
+<div class="line"><a id="l04889" name="l04889"></a><span class="lineno"> 4889</span>    {</div>
+<div class="line"><a id="l04890" name="l04890"></a><span class="lineno"> 4890</span>      <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
+<div class="line"><a id="l04891" name="l04891"></a><span class="lineno"> 4891</span>                     <span class="stringliteral">&quot;Initial check: can_send() is true, but no data to send.&quot;</span>);</div>
+<div class="line"><a id="l04892" name="l04892"></a><span class="lineno"> 4892</span>      <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l04893" name="l04893"></a><span class="lineno"> 4893</span>    }</div>
+<div class="line"><a id="l04894" name="l04894"></a><span class="lineno"> 4894</span>    <span class="comment">// else can send &gt;= 1 packet.</span></div>
 <div class="line"><a id="l04895" name="l04895"></a><span class="lineno"> 4895</span> </div>
-<div class="line"><a id="l04896" name="l04896"></a><span class="lineno"> 4896</span>    <span class="comment">// @todo Implement graceful close.</span></div>
-<div class="line"><a id="l04897" name="l04897"></a><span class="lineno"> 4897</span>    assert(sock-&gt;m_open_sub_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>);</div>
-<div class="line"><a id="l04898" name="l04898"></a><span class="lineno"> 4898</span> </div>
-<div class="line"><a id="l04899" name="l04899"></a><span class="lineno"> 4899</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
-<div class="line"><a id="l04900" name="l04900"></a><span class="lineno"> 4900</span>                   <span class="stringliteral">&quot;Initial check: Will send from rexmit queue of size [&quot;</span> &lt;&lt; rexmit_q_size &lt;&lt; <span class="stringliteral">&quot;] and/or &quot;</span></div>
-<div class="line"><a id="l04901" name="l04901"></a><span class="lineno"> 4901</span>                   <span class="stringliteral">&quot;Send buffer with total size [&quot;</span> &lt;&lt; snd_buf.<a class="code hl_function" href="classflow_1_1net__flow_1_1Socket__buffer.html#af21cd24bba62da1d16a8fc4f9b8e37fd">data_size</a>() &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l04902" name="l04902"></a><span class="lineno"> 4902</span>    <span class="comment">// Very verbose and CPU-intensive!</span></div>
-<div class="line"><a id="l04903" name="l04903"></a><span class="lineno"> 4903</span>    <a class="code hl_define" href="log_8hpp.html#a07561c1c3f16b6c2c7335a09e25298c9">FLOW_LOG_DATA</a>(<span class="stringliteral">&quot;Send buffer data = [\n&quot;</span> &lt;&lt; snd_buf &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l04896" name="l04896"></a><span class="lineno"> 4896</span>    <span class="comment">// For brevity and a bit of speed:</span></div>
+<div class="line"><a id="l04897" name="l04897"></a><span class="lineno"> 4897</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Socket__buffer.html">Socket_buffer</a>&amp; snd_buf = sock-&gt;m_snd_buf;</div>
+<div class="line"><a id="l04898" name="l04898"></a><span class="lineno"> 4898</span>    list&lt;Peer_socket::Sent_packet::Ptr&gt;&amp; rexmit_q = sock-&gt;m_snd_rexmit_q;</div>
+<div class="line"><a id="l04899" name="l04899"></a><span class="lineno"> 4899</span>    <span class="keywordtype">size_t</span>&amp; rexmit_q_size = sock-&gt;m_snd_rexmit_q_size;</div>
+<div class="line"><a id="l04900" name="l04900"></a><span class="lineno"> 4900</span>    <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; snd_next_seq_num = sock-&gt;m_snd_next_seq_num;</div>
+<div class="line"><a id="l04901" name="l04901"></a><span class="lineno"> 4901</span> </div>
+<div class="line"><a id="l04902" name="l04902"></a><span class="lineno"> 4902</span>    <span class="comment">// @todo Implement graceful close.</span></div>
+<div class="line"><a id="l04903" name="l04903"></a><span class="lineno"> 4903</span>    assert(sock-&gt;m_open_sub_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>);</div>
 <div class="line"><a id="l04904" name="l04904"></a><span class="lineno"> 4904</span> </div>
-<div class="line"><a id="l04905" name="l04905"></a><span class="lineno"> 4905</span>    <span class="comment">// Send packets until one or both of can_send() and snd_deqable() become false.</span></div>
-<div class="line"><a id="l04906" name="l04906"></a><span class="lineno"> 4906</span>    <span class="keywordflow">do</span></div>
-<div class="line"><a id="l04907" name="l04907"></a><span class="lineno"> 4907</span>    {</div>
-<div class="line"><a id="l04908" name="l04908"></a><span class="lineno"> 4908</span>      shared_ptr&lt;Data_packet&gt; data;</div>
-<div class="line"><a id="l04909" name="l04909"></a><span class="lineno"> 4909</span>      <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Sent_packet::Ptr</a> sent_pkt;</div>
-<div class="line"><a id="l04910" name="l04910"></a><span class="lineno"> 4910</span>      <span class="keywordtype">bool</span> rexmit = <span class="keyword">false</span>;</div>
-<div class="line"><a id="l04911" name="l04911"></a><span class="lineno"> 4911</span> </div>
-<div class="line"><a id="l04912" name="l04912"></a><span class="lineno"> 4912</span>      <span class="comment">/* Record send time.  It&#39;s only a temporary value for logging, until we</span></div>
-<div class="line"><a id="l04913" name="l04913"></a><span class="lineno"> 4913</span><span class="comment">       * actually send packet.  However, do generate the permanent m_order_num, which is unique. */</span></div>
-<div class="line"><a id="l04914" name="l04914"></a><span class="lineno"> 4914</span>      <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Peer_socket::Sent_packet::Sent_when</a> sent_when{ <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a479dfcb7944cb6571af51f1feed2656d">sock_get_new_snd_order_num</a>(sock), Fine_clock::now(), 0 };</div>
-<div class="line"><a id="l04915" name="l04915"></a><span class="lineno"> 4915</span> </div>
-<div class="line"><a id="l04916" name="l04916"></a><span class="lineno"> 4916</span>      <span class="comment">/* To provide the best experience on the receiving side, retransmit before sending new data,</span></div>
-<div class="line"><a id="l04917" name="l04917"></a><span class="lineno"> 4917</span><span class="comment">       * so that Receive buffer on other side receives data as soon as possible. */</span></div>
-<div class="line"><a id="l04918" name="l04918"></a><span class="lineno"> 4918</span>      <span class="keywordflow">if</span> (rexmit_q.empty())</div>
-<div class="line"><a id="l04919" name="l04919"></a><span class="lineno"> 4919</span>      {</div>
-<div class="line"><a id="l04920" name="l04920"></a><span class="lineno"> 4920</span>        <span class="comment">// Nothing in retransmission queue, so something is in Send buffer.</span></div>
+<div class="line"><a id="l04905" name="l04905"></a><span class="lineno"> 4905</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
+<div class="line"><a id="l04906" name="l04906"></a><span class="lineno"> 4906</span>                   <span class="stringliteral">&quot;Initial check: Will send from rexmit queue of size [&quot;</span> &lt;&lt; rexmit_q_size &lt;&lt; <span class="stringliteral">&quot;] and/or &quot;</span></div>
+<div class="line"><a id="l04907" name="l04907"></a><span class="lineno"> 4907</span>                   <span class="stringliteral">&quot;Send buffer with total size [&quot;</span> &lt;&lt; snd_buf.<a class="code hl_function" href="classflow_1_1net__flow_1_1Socket__buffer.html#af21cd24bba62da1d16a8fc4f9b8e37fd">data_size</a>() &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l04908" name="l04908"></a><span class="lineno"> 4908</span>    <span class="comment">// Very verbose and CPU-intensive!</span></div>
+<div class="line"><a id="l04909" name="l04909"></a><span class="lineno"> 4909</span>    <a class="code hl_define" href="log_8hpp.html#a07561c1c3f16b6c2c7335a09e25298c9">FLOW_LOG_DATA</a>(<span class="stringliteral">&quot;Send buffer data = [\n&quot;</span> &lt;&lt; snd_buf &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l04910" name="l04910"></a><span class="lineno"> 4910</span> </div>
+<div class="line"><a id="l04911" name="l04911"></a><span class="lineno"> 4911</span>    <span class="comment">// Send packets until one or both of can_send() and snd_deqable() become false.</span></div>
+<div class="line"><a id="l04912" name="l04912"></a><span class="lineno"> 4912</span>    <span class="keywordflow">do</span></div>
+<div class="line"><a id="l04913" name="l04913"></a><span class="lineno"> 4913</span>    {</div>
+<div class="line"><a id="l04914" name="l04914"></a><span class="lineno"> 4914</span>      shared_ptr&lt;Data_packet&gt; data;</div>
+<div class="line"><a id="l04915" name="l04915"></a><span class="lineno"> 4915</span>      <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Sent_packet::Ptr</a> sent_pkt;</div>
+<div class="line"><a id="l04916" name="l04916"></a><span class="lineno"> 4916</span>      <span class="keywordtype">bool</span> rexmit = <span class="keyword">false</span>;</div>
+<div class="line"><a id="l04917" name="l04917"></a><span class="lineno"> 4917</span> </div>
+<div class="line"><a id="l04918" name="l04918"></a><span class="lineno"> 4918</span>      <span class="comment">/* Record send time.  It&#39;s only a temporary value for logging, until we</span></div>
+<div class="line"><a id="l04919" name="l04919"></a><span class="lineno"> 4919</span><span class="comment">       * actually send packet.  However, do generate the permanent m_order_num, which is unique. */</span></div>
+<div class="line"><a id="l04920" name="l04920"></a><span class="lineno"> 4920</span>      <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Peer_socket::Sent_packet::Sent_when</a> sent_when{ <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a479dfcb7944cb6571af51f1feed2656d">sock_get_new_snd_order_num</a>(sock), Fine_clock::now(), 0 };</div>
 <div class="line"><a id="l04921" name="l04921"></a><span class="lineno"> 4921</span> </div>
-<div class="line"><a id="l04922" name="l04922"></a><span class="lineno"> 4922</span>        <span class="comment">// Create low-level DATA packet.</span></div>
-<div class="line"><a id="l04923" name="l04923"></a><span class="lineno"> 4923</span>        data = Low_lvl_packet::create_uninit_packet&lt;Data_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
-<div class="line"><a id="l04924" name="l04924"></a><span class="lineno"> 4924</span>        data-&gt;m_rexmit_id = 0; <span class="comment">// First (if retransmission is off, only) send attempt.</span></div>
-<div class="line"><a id="l04925" name="l04925"></a><span class="lineno"> 4925</span> </div>
-<div class="line"><a id="l04926" name="l04926"></a><span class="lineno"> 4926</span>        <span class="comment">// Dequeue one block into the packet&#39;s data field.</span></div>
+<div class="line"><a id="l04922" name="l04922"></a><span class="lineno"> 4922</span>      <span class="comment">/* To provide the best experience on the receiving side, retransmit before sending new data,</span></div>
+<div class="line"><a id="l04923" name="l04923"></a><span class="lineno"> 4923</span><span class="comment">       * so that Receive buffer on other side receives data as soon as possible. */</span></div>
+<div class="line"><a id="l04924" name="l04924"></a><span class="lineno"> 4924</span>      <span class="keywordflow">if</span> (rexmit_q.empty())</div>
+<div class="line"><a id="l04925" name="l04925"></a><span class="lineno"> 4925</span>      {</div>
+<div class="line"><a id="l04926" name="l04926"></a><span class="lineno"> 4926</span>        <span class="comment">// Nothing in retransmission queue, so something is in Send buffer.</span></div>
 <div class="line"><a id="l04927" name="l04927"></a><span class="lineno"> 4927</span> </div>
-<div class="line"><a id="l04928" name="l04928"></a><span class="lineno"> 4928</span>        <span class="comment">/* Try to dequeue the head block directly into data.m_data.  Because we are operating snd_buf</span></div>
-<div class="line"><a id="l04929" name="l04929"></a><span class="lineno"> 4929</span><span class="comment">         * with block_size_hint == sock-&gt;max_block_size(); and because we don&#39;t send unless CWND</span></div>
-<div class="line"><a id="l04930" name="l04930"></a><span class="lineno"> 4930</span><span class="comment">         * allows for at least max_block_size() bytes to be sent, the following should be a</span></div>
-<div class="line"><a id="l04931" name="l04931"></a><span class="lineno"> 4931</span><span class="comment">         * constant-time operation (a swap of internal buffers) as opposed to a copy. */</span></div>
-<div class="line"><a id="l04932" name="l04932"></a><span class="lineno"> 4932</span>        snd_buf.<a class="code hl_function" href="classflow_1_1net__flow_1_1Socket__buffer.html#a8fe3fe5f6a33cfd8fb84eb2607fbc05b">consume_buf_move</a>(&amp;data-&gt;m_data, sock-&gt;max_block_size());</div>
+<div class="line"><a id="l04928" name="l04928"></a><span class="lineno"> 4928</span>        <span class="comment">// Create low-level DATA packet.</span></div>
+<div class="line"><a id="l04929" name="l04929"></a><span class="lineno"> 4929</span>        data = Low_lvl_packet::create_uninit_packet&lt;Data_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
+<div class="line"><a id="l04930" name="l04930"></a><span class="lineno"> 4930</span>        data-&gt;m_rexmit_id = 0; <span class="comment">// First (if retransmission is off, only) send attempt.</span></div>
+<div class="line"><a id="l04931" name="l04931"></a><span class="lineno"> 4931</span> </div>
+<div class="line"><a id="l04932" name="l04932"></a><span class="lineno"> 4932</span>        <span class="comment">// Dequeue one block into the packet&#39;s data field.</span></div>
 <div class="line"><a id="l04933" name="l04933"></a><span class="lineno"> 4933</span> </div>
-<div class="line"><a id="l04934" name="l04934"></a><span class="lineno"> 4934</span>        <span class="comment">// snd_deqable() returned true, so there must be at least one byte available.</span></div>
-<div class="line"><a id="l04935" name="l04935"></a><span class="lineno"> 4935</span>        assert(!data-&gt;m_data.empty());</div>
-<div class="line"><a id="l04936" name="l04936"></a><span class="lineno"> 4936</span> </div>
-<div class="line"><a id="l04937" name="l04937"></a><span class="lineno"> 4937</span>        <span class="comment">// Set sequence number; then advance the next sequence number variable for the next time we do this.</span></div>
-<div class="line"><a id="l04938" name="l04938"></a><span class="lineno"> 4938</span>        data-&gt;m_seq_num = snd_next_seq_num;</div>
-<div class="line"><a id="l04939" name="l04939"></a><span class="lineno"> 4939</span>        <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">advance_seq_num</a>(&amp;snd_next_seq_num, data);</div>
-<div class="line"><a id="l04940" name="l04940"></a><span class="lineno"> 4940</span> </div>
-<div class="line"><a id="l04941" name="l04941"></a><span class="lineno"> 4941</span>        <span class="comment">/* We are just about to send the packet.  Assume it has been sent.  It is not yet Acknowledged</span></div>
-<div class="line"><a id="l04942" name="l04942"></a><span class="lineno"> 4942</span><span class="comment">         * and not yet Dropped.  Therefore it is now In-flight.  We should place its info at the back of</span></div>
-<div class="line"><a id="l04943" name="l04943"></a><span class="lineno"> 4943</span><span class="comment">         * m_snd_flying_pkts_by_sent_when.  We must maintain the invariant w/r/t that structure (see comment</span></div>
-<div class="line"><a id="l04944" name="l04944"></a><span class="lineno"> 4944</span><span class="comment">         * for m_snd_flying_pkts_by_sent_when).</span></div>
-<div class="line"><a id="l04945" name="l04945"></a><span class="lineno"> 4945</span><span class="comment">         *</span></div>
-<div class="line"><a id="l04946" name="l04946"></a><span class="lineno"> 4946</span><span class="comment">         * Purpose of keeping these data: at least for comparison against Congestion Window,</span></div>
-<div class="line"><a id="l04947" name="l04947"></a><span class="lineno"> 4947</span><span class="comment">         * for congestion control. */</span></div>
-<div class="line"><a id="l04948" name="l04948"></a><span class="lineno"> 4948</span> </div>
-<div class="line"><a id="l04949" name="l04949"></a><span class="lineno"> 4949</span>        <span class="comment">// Guarantee that the new sequence number is &gt; all the currently In-flight ones.</span></div>
-<div class="line"><a id="l04950" name="l04950"></a><span class="lineno"> 4950</span>        assert(data-&gt;m_seq_num &gt;= <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a837d37e6eb06fb6df4666bac327d20f8">snd_past_last_flying_datum_seq_num</a>(sock));</div>
-<div class="line"><a id="l04951" name="l04951"></a><span class="lineno"> 4951</span>        <span class="comment">/* Therefore we will add the following to the end of the map&#39;s ordering.  Note we&#39;ve</span></div>
-<div class="line"><a id="l04952" name="l04952"></a><span class="lineno"> 4952</span><span class="comment">         * incremented m_snd_next_seq_num already, maintaining that member&#39;s invariant relationship</span></div>
-<div class="line"><a id="l04953" name="l04953"></a><span class="lineno"> 4953</span><span class="comment">         * with m_snd_flying_pkts_by_sent_when. */</span></div>
+<div class="line"><a id="l04934" name="l04934"></a><span class="lineno"> 4934</span>        <span class="comment">/* Try to dequeue the head block directly into data.m_data.  Because we are operating snd_buf</span></div>
+<div class="line"><a id="l04935" name="l04935"></a><span class="lineno"> 4935</span><span class="comment">         * with block_size_hint == sock-&gt;max_block_size(); and because we don&#39;t send unless CWND</span></div>
+<div class="line"><a id="l04936" name="l04936"></a><span class="lineno"> 4936</span><span class="comment">         * allows for at least max_block_size() bytes to be sent, the following should be a</span></div>
+<div class="line"><a id="l04937" name="l04937"></a><span class="lineno"> 4937</span><span class="comment">         * constant-time operation (a swap of internal buffers) as opposed to a copy. */</span></div>
+<div class="line"><a id="l04938" name="l04938"></a><span class="lineno"> 4938</span>        snd_buf.<a class="code hl_function" href="classflow_1_1net__flow_1_1Socket__buffer.html#a8fe3fe5f6a33cfd8fb84eb2607fbc05b">consume_buf_move</a>(&amp;data-&gt;m_data, sock-&gt;max_block_size());</div>
+<div class="line"><a id="l04939" name="l04939"></a><span class="lineno"> 4939</span> </div>
+<div class="line"><a id="l04940" name="l04940"></a><span class="lineno"> 4940</span>        <span class="comment">// snd_deqable() returned true, so there must be at least one byte available.</span></div>
+<div class="line"><a id="l04941" name="l04941"></a><span class="lineno"> 4941</span>        assert(!data-&gt;m_data.empty());</div>
+<div class="line"><a id="l04942" name="l04942"></a><span class="lineno"> 4942</span> </div>
+<div class="line"><a id="l04943" name="l04943"></a><span class="lineno"> 4943</span>        <span class="comment">// Set sequence number; then advance the next sequence number variable for the next time we do this.</span></div>
+<div class="line"><a id="l04944" name="l04944"></a><span class="lineno"> 4944</span>        data-&gt;m_seq_num = snd_next_seq_num;</div>
+<div class="line"><a id="l04945" name="l04945"></a><span class="lineno"> 4945</span>        <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">advance_seq_num</a>(&amp;snd_next_seq_num, data);</div>
+<div class="line"><a id="l04946" name="l04946"></a><span class="lineno"> 4946</span> </div>
+<div class="line"><a id="l04947" name="l04947"></a><span class="lineno"> 4947</span>        <span class="comment">/* We are just about to send the packet.  Assume it has been sent.  It is not yet Acknowledged</span></div>
+<div class="line"><a id="l04948" name="l04948"></a><span class="lineno"> 4948</span><span class="comment">         * and not yet Dropped.  Therefore it is now In-flight.  We should place its info at the back of</span></div>
+<div class="line"><a id="l04949" name="l04949"></a><span class="lineno"> 4949</span><span class="comment">         * m_snd_flying_pkts_by_sent_when.  We must maintain the invariant w/r/t that structure (see comment</span></div>
+<div class="line"><a id="l04950" name="l04950"></a><span class="lineno"> 4950</span><span class="comment">         * for m_snd_flying_pkts_by_sent_when).</span></div>
+<div class="line"><a id="l04951" name="l04951"></a><span class="lineno"> 4951</span><span class="comment">         *</span></div>
+<div class="line"><a id="l04952" name="l04952"></a><span class="lineno"> 4952</span><span class="comment">         * Purpose of keeping these data: at least for comparison against Congestion Window,</span></div>
+<div class="line"><a id="l04953" name="l04953"></a><span class="lineno"> 4953</span><span class="comment">         * for congestion control. */</span></div>
 <div class="line"><a id="l04954" name="l04954"></a><span class="lineno"> 4954</span> </div>
-<div class="line"><a id="l04955" name="l04955"></a><span class="lineno"> 4955</span>        <span class="comment">// New packet: create new metadata object.  Record send time.  (The latter will be rewritten later.)</span></div>
-<div class="line"><a id="l04956" name="l04956"></a><span class="lineno"> 4956</span>        sent_pkt = <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Sent_packet::Ptr</a>(<span class="keyword">new</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">Peer_socket::Sent_packet</a>(rexmit_on, data, sent_when));</div>
-<div class="line"><a id="l04957" name="l04957"></a><span class="lineno"> 4957</span>      }</div>
-<div class="line"><a id="l04958" name="l04958"></a><span class="lineno"> 4958</span>      <span class="keywordflow">else</span> <span class="comment">// if (!rexmit_q.empty())</span></div>
-<div class="line"><a id="l04959" name="l04959"></a><span class="lineno"> 4959</span>      {</div>
-<div class="line"><a id="l04960" name="l04960"></a><span class="lineno"> 4960</span>        <span class="comment">// Get packet and metadata from front of retransmission queue.</span></div>
-<div class="line"><a id="l04961" name="l04961"></a><span class="lineno"> 4961</span>        rexmit = <span class="keyword">true</span>;</div>
-<div class="line"><a id="l04962" name="l04962"></a><span class="lineno"> 4962</span>        sent_pkt = rexmit_q.front();</div>
-<div class="line"><a id="l04963" name="l04963"></a><span class="lineno"> 4963</span> </div>
-<div class="line"><a id="l04964" name="l04964"></a><span class="lineno"> 4964</span>        --rexmit_q_size;</div>
-<div class="line"><a id="l04965" name="l04965"></a><span class="lineno"> 4965</span>        rexmit_q.pop_front();</div>
-<div class="line"><a id="l04966" name="l04966"></a><span class="lineno"> 4966</span> </div>
-<div class="line"><a id="l04967" name="l04967"></a><span class="lineno"> 4967</span>        <span class="comment">// We&#39;d saved the packet we sent last time -- just need to update some things before resending.</span></div>
-<div class="line"><a id="l04968" name="l04968"></a><span class="lineno"> 4968</span>        data = sent_pkt-&gt;m_packet;</div>
+<div class="line"><a id="l04955" name="l04955"></a><span class="lineno"> 4955</span>        <span class="comment">// Guarantee that the new sequence number is &gt; all the currently In-flight ones.</span></div>
+<div class="line"><a id="l04956" name="l04956"></a><span class="lineno"> 4956</span>        assert(data-&gt;m_seq_num &gt;= <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a837d37e6eb06fb6df4666bac327d20f8">snd_past_last_flying_datum_seq_num</a>(sock));</div>
+<div class="line"><a id="l04957" name="l04957"></a><span class="lineno"> 4957</span>        <span class="comment">/* Therefore we will add the following to the end of the map&#39;s ordering.  Note we&#39;ve</span></div>
+<div class="line"><a id="l04958" name="l04958"></a><span class="lineno"> 4958</span><span class="comment">         * incremented m_snd_next_seq_num already, maintaining that member&#39;s invariant relationship</span></div>
+<div class="line"><a id="l04959" name="l04959"></a><span class="lineno"> 4959</span><span class="comment">         * with m_snd_flying_pkts_by_sent_when. */</span></div>
+<div class="line"><a id="l04960" name="l04960"></a><span class="lineno"> 4960</span> </div>
+<div class="line"><a id="l04961" name="l04961"></a><span class="lineno"> 4961</span>        <span class="comment">// New packet: create new metadata object.  Record send time.  (The latter will be rewritten later.)</span></div>
+<div class="line"><a id="l04962" name="l04962"></a><span class="lineno"> 4962</span>        sent_pkt = <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Sent_packet::Ptr</a>(<span class="keyword">new</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">Peer_socket::Sent_packet</a>(rexmit_on, data, sent_when));</div>
+<div class="line"><a id="l04963" name="l04963"></a><span class="lineno"> 4963</span>      }</div>
+<div class="line"><a id="l04964" name="l04964"></a><span class="lineno"> 4964</span>      <span class="keywordflow">else</span> <span class="comment">// if (!rexmit_q.empty())</span></div>
+<div class="line"><a id="l04965" name="l04965"></a><span class="lineno"> 4965</span>      {</div>
+<div class="line"><a id="l04966" name="l04966"></a><span class="lineno"> 4966</span>        <span class="comment">// Get packet and metadata from front of retransmission queue.</span></div>
+<div class="line"><a id="l04967" name="l04967"></a><span class="lineno"> 4967</span>        rexmit = <span class="keyword">true</span>;</div>
+<div class="line"><a id="l04968" name="l04968"></a><span class="lineno"> 4968</span>        sent_pkt = rexmit_q.front();</div>
 <div class="line"><a id="l04969" name="l04969"></a><span class="lineno"> 4969</span> </div>
-<div class="line"><a id="l04970" name="l04970"></a><span class="lineno"> 4970</span>        <span class="comment">// Retransmitting -- update retransmit count ID (used to match acks to the acked transmit attempt).</span></div>
-<div class="line"><a id="l04971" name="l04971"></a><span class="lineno"> 4971</span>        ++data-&gt;m_rexmit_id;</div>
+<div class="line"><a id="l04970" name="l04970"></a><span class="lineno"> 4970</span>        --rexmit_q_size;</div>
+<div class="line"><a id="l04971" name="l04971"></a><span class="lineno"> 4971</span>        rexmit_q.pop_front();</div>
 <div class="line"><a id="l04972" name="l04972"></a><span class="lineno"> 4972</span> </div>
-<div class="line"><a id="l04973" name="l04973"></a><span class="lineno"> 4973</span>        <span class="comment">// Record the send time of this newest attempt.  (If pacing enabled this will be rewritten later.)</span></div>
-<div class="line"><a id="l04974" name="l04974"></a><span class="lineno"> 4974</span>        sent_pkt-&gt;m_sent_when.push_back(sent_when);</div>
+<div class="line"><a id="l04973" name="l04973"></a><span class="lineno"> 4973</span>        <span class="comment">// We&#39;d saved the packet we sent last time -- just need to update some things before resending.</span></div>
+<div class="line"><a id="l04974" name="l04974"></a><span class="lineno"> 4974</span>        data = sent_pkt-&gt;m_packet;</div>
 <div class="line"><a id="l04975" name="l04975"></a><span class="lineno"> 4975</span> </div>
-<div class="line"><a id="l04976" name="l04976"></a><span class="lineno"> 4976</span>        <span class="comment">// Chronologically, no packets sent after this one have been acked yet, as this packet is new.</span></div>
-<div class="line"><a id="l04977" name="l04977"></a><span class="lineno"> 4977</span>        sent_pkt-&gt;m_acks_after_me = 0;</div>
-<div class="line"><a id="l04978" name="l04978"></a><span class="lineno"> 4978</span>      }</div>
-<div class="line"><a id="l04979" name="l04979"></a><span class="lineno"> 4979</span> </div>
-<div class="line"><a id="l04980" name="l04980"></a><span class="lineno"> 4980</span>      <span class="comment">/* Note: We have saved Fine_clock::now() as the send time of the packet. However, especially</span></div>
-<div class="line"><a id="l04981" name="l04981"></a><span class="lineno"> 4981</span><span class="comment">       * if pacing is enabled, we want to record it at the time it is actually sent (pacing may</span></div>
-<div class="line"><a id="l04982" name="l04982"></a><span class="lineno"> 4982</span><span class="comment">       * delay it).  Even if pacing is disabled, CPU pegging may cause a delay in sending (although</span></div>
-<div class="line"><a id="l04983" name="l04983"></a><span class="lineno"> 4983</span><span class="comment">       * whether that should &quot;count&quot; is a more philosophical question).  With pacing, though, since</span></div>
-<div class="line"><a id="l04984" name="l04984"></a><span class="lineno"> 4984</span><span class="comment">       * pacing spreads out packets over SRTT, and SRTT is measured based on</span></div>
-<div class="line"><a id="l04985" name="l04985"></a><span class="lineno"> 4985</span><span class="comment">       * Sent_packet::m_sent_when, RTTs artifically become longer and longer if we record the send</span></div>
-<div class="line"><a id="l04986" name="l04986"></a><span class="lineno"> 4986</span><span class="comment">       * time now.  Anyway, this means m_sent_when.back() should be overwritten when the packet is</span></div>
-<div class="line"><a id="l04987" name="l04987"></a><span class="lineno"> 4987</span><span class="comment">       * actually sent (which should be very soon, unless pacing is enabled).</span></div>
-<div class="line"><a id="l04988" name="l04988"></a><span class="lineno"> 4988</span><span class="comment">       * See async_sock_low_lvl_packet_send_paced(). */</span></div>
-<div class="line"><a id="l04989" name="l04989"></a><span class="lineno"> 4989</span> </div>
-<div class="line"><a id="l04990" name="l04990"></a><span class="lineno"> 4990</span>      <span class="comment">// data and sent_pkt are ready.</span></div>
-<div class="line"><a id="l04991" name="l04991"></a><span class="lineno"> 4991</span> </div>
-<div class="line"><a id="l04992" name="l04992"></a><span class="lineno"> 4992</span>      <span class="comment">// Add to snd_flying_pkts* and friends; update byte counts.</span></div>
-<div class="line"><a id="l04993" name="l04993"></a><span class="lineno"> 4993</span>      <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a52a3e10ef08b93daf87ea5f0f1e87062">snd_flying_pkts_push_one</a>(sock, data-&gt;m_seq_num, sent_pkt);</div>
-<div class="line"><a id="l04994" name="l04994"></a><span class="lineno"> 4994</span> </div>
-<div class="line"><a id="l04995" name="l04995"></a><span class="lineno"> 4995</span>      <span class="comment">/* By adding to m_snd_flying_pkts_by_sent_when (i.e., increasing In-flight byte count), we may have</span></div>
-<div class="line"><a id="l04996" name="l04996"></a><span class="lineno"> 4996</span><span class="comment">       * affected the result of can_send().  We do check it at the end of the while () body, so OK. */</span></div>
+<div class="line"><a id="l04976" name="l04976"></a><span class="lineno"> 4976</span>        <span class="comment">// Retransmitting -- update retransmit count ID (used to match acks to the acked transmit attempt).</span></div>
+<div class="line"><a id="l04977" name="l04977"></a><span class="lineno"> 4977</span>        ++data-&gt;m_rexmit_id;</div>
+<div class="line"><a id="l04978" name="l04978"></a><span class="lineno"> 4978</span> </div>
+<div class="line"><a id="l04979" name="l04979"></a><span class="lineno"> 4979</span>        <span class="comment">// Record the send time of this newest attempt.  (If pacing enabled this will be rewritten later.)</span></div>
+<div class="line"><a id="l04980" name="l04980"></a><span class="lineno"> 4980</span>        sent_pkt-&gt;m_sent_when.push_back(sent_when);</div>
+<div class="line"><a id="l04981" name="l04981"></a><span class="lineno"> 4981</span> </div>
+<div class="line"><a id="l04982" name="l04982"></a><span class="lineno"> 4982</span>        <span class="comment">// Chronologically, no packets sent after this one have been acked yet, as this packet is new.</span></div>
+<div class="line"><a id="l04983" name="l04983"></a><span class="lineno"> 4983</span>        sent_pkt-&gt;m_acks_after_me = 0;</div>
+<div class="line"><a id="l04984" name="l04984"></a><span class="lineno"> 4984</span>      }</div>
+<div class="line"><a id="l04985" name="l04985"></a><span class="lineno"> 4985</span> </div>
+<div class="line"><a id="l04986" name="l04986"></a><span class="lineno"> 4986</span>      <span class="comment">/* Note: We have saved Fine_clock::now() as the send time of the packet. However, especially</span></div>
+<div class="line"><a id="l04987" name="l04987"></a><span class="lineno"> 4987</span><span class="comment">       * if pacing is enabled, we want to record it at the time it is actually sent (pacing may</span></div>
+<div class="line"><a id="l04988" name="l04988"></a><span class="lineno"> 4988</span><span class="comment">       * delay it).  Even if pacing is disabled, CPU pegging may cause a delay in sending (although</span></div>
+<div class="line"><a id="l04989" name="l04989"></a><span class="lineno"> 4989</span><span class="comment">       * whether that should &quot;count&quot; is a more philosophical question).  With pacing, though, since</span></div>
+<div class="line"><a id="l04990" name="l04990"></a><span class="lineno"> 4990</span><span class="comment">       * pacing spreads out packets over SRTT, and SRTT is measured based on</span></div>
+<div class="line"><a id="l04991" name="l04991"></a><span class="lineno"> 4991</span><span class="comment">       * Sent_packet::m_sent_when, RTTs artifically become longer and longer if we record the send</span></div>
+<div class="line"><a id="l04992" name="l04992"></a><span class="lineno"> 4992</span><span class="comment">       * time now.  Anyway, this means m_sent_when.back() should be overwritten when the packet is</span></div>
+<div class="line"><a id="l04993" name="l04993"></a><span class="lineno"> 4993</span><span class="comment">       * actually sent (which should be very soon, unless pacing is enabled).</span></div>
+<div class="line"><a id="l04994" name="l04994"></a><span class="lineno"> 4994</span><span class="comment">       * See async_sock_low_lvl_packet_send_paced(). */</span></div>
+<div class="line"><a id="l04995" name="l04995"></a><span class="lineno"> 4995</span> </div>
+<div class="line"><a id="l04996" name="l04996"></a><span class="lineno"> 4996</span>      <span class="comment">// data and sent_pkt are ready.</span></div>
 <div class="line"><a id="l04997" name="l04997"></a><span class="lineno"> 4997</span> </div>
-<div class="line"><a id="l04998" name="l04998"></a><span class="lineno"> 4998</span>      <span class="comment">// Fill out common fields and asynchronously send packet (packet pacing potentially performed inside).</span></div>
-<div class="line"><a id="l04999" name="l04999"></a><span class="lineno"> 4999</span>      <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">async_sock_low_lvl_packet_send_or_close_immediately</a>(sock,</div>
-<div class="line"><a id="l05000" name="l05000"></a><span class="lineno"> 5000</span>                                                               <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(data),</div>
-<div class="line"><a id="l05001" name="l05001"></a><span class="lineno"> 5001</span>                                                               defer_delta_check))</div>
-<div class="line"><a id="l05002" name="l05002"></a><span class="lineno"> 5002</span>      {</div>
-<div class="line"><a id="l05003" name="l05003"></a><span class="lineno"> 5003</span>        <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05004" name="l05004"></a><span class="lineno"> 5004</span>      }</div>
-<div class="line"><a id="l05005" name="l05005"></a><span class="lineno"> 5005</span> </div>
-<div class="line"><a id="l05006" name="l05006"></a><span class="lineno"> 5006</span>      sock-&gt;m_snd_stats.data_sent(data-&gt;m_data.size(), rexmit);</div>
-<div class="line"><a id="l05007" name="l05007"></a><span class="lineno"> 5007</span>    }</div>
-<div class="line"><a id="l05008" name="l05008"></a><span class="lineno"> 5008</span>    <span class="keywordflow">while</span> (<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657">can_send</a>(sock) &amp;&amp; <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">snd_deqable</a>(sock)); <span class="comment">// (there is CWND/rcv_wnd space; and either rexmittable or new data)</span></div>
-<div class="line"><a id="l05009" name="l05009"></a><span class="lineno"> 5009</span> </div>
-<div class="line"><a id="l05010" name="l05010"></a><span class="lineno"> 5010</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]; connection [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
-<div class="line"><a id="l05011" name="l05011"></a><span class="lineno"> 5011</span>                   <span class="stringliteral">&quot;Final check: &quot;</span></div>
-<div class="line"><a id="l05012" name="l05012"></a><span class="lineno"> 5012</span>                   <span class="stringliteral">&quot;can_send() == [&quot;</span> &lt;&lt; <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657">can_send</a>(sock) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l05013" name="l05013"></a><span class="lineno"> 5013</span>                   <span class="stringliteral">&quot;snd_deqable() == [&quot;</span> &lt;&lt; <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">snd_deqable</a>(sock) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l05014" name="l05014"></a><span class="lineno"> 5014</span> </div>
-<div class="line"><a id="l05015" name="l05015"></a><span class="lineno"> 5015</span>    writable = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a70d124ba678e2ab72f8c6d28140ca137">snd_buf_enqable</a>(sock); <span class="comment">// Must do before releasing lock.</span></div>
-<div class="line"><a id="l05016" name="l05016"></a><span class="lineno"> 5016</span>  } <span class="comment">// lock</span></div>
-<div class="line"><a id="l05017" name="l05017"></a><span class="lineno"> 5017</span> </div>
-<div class="line"><a id="l05018" name="l05018"></a><span class="lineno"> 5018</span>  <span class="comment">/* Finally, check if the above has dequeued enough of m_snd_buf for it to accept more data from</span></div>
-<div class="line"><a id="l05019" name="l05019"></a><span class="lineno"> 5019</span><span class="comment">   * user.  If so, sock is certainly now Writable.  Therefore we should soon inform anyone waiting</span></div>
-<div class="line"><a id="l05020" name="l05020"></a><span class="lineno"> 5020</span><span class="comment">   * on any Event_sets for sock to become Writable.</span></div>
-<div class="line"><a id="l05021" name="l05021"></a><span class="lineno"> 5021</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05022" name="l05022"></a><span class="lineno"> 5022</span><span class="comment">   * Caveat: Similar to that in Node::handle_syn_ack_ack_to_syn_rcvd() at similar point in the</span></div>
-<div class="line"><a id="l05023" name="l05023"></a><span class="lineno"> 5023</span><span class="comment">   * code.</span></div>
-<div class="line"><a id="l05024" name="l05024"></a><span class="lineno"> 5024</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05025" name="l05025"></a><span class="lineno"> 5025</span><span class="comment">   * Also: why do this outside the above locked block?  Same reason as similar code in</span></div>
-<div class="line"><a id="l05026" name="l05026"></a><span class="lineno"> 5026</span><span class="comment">   * handle_data_to_established(). */</span></div>
-<div class="line"><a id="l05027" name="l05027"></a><span class="lineno"> 5027</span>  <span class="keywordflow">if</span> (writable &amp;&amp;</div>
-<div class="line"><a id="l05028" name="l05028"></a><span class="lineno"> 5028</span>      <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#ab0026feecdb74eda904d00d2c7016bab">m_sock_events</a>[<a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">Event_set::Event_type::S_PEER_SOCKET_WRITABLE</a>].insert(sock).second)</div>
-<div class="line"><a id="l05029" name="l05029"></a><span class="lineno"> 5029</span>  {</div>
-<div class="line"><a id="l05030" name="l05030"></a><span class="lineno"> 5030</span>    <span class="comment">// Possibly inform the user for any applicable Event_sets right now.</span></div>
-<div class="line"><a id="l05031" name="l05031"></a><span class="lineno"> 5031</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a8a4ddf81ddbeab1f740940c4cc0d3625">event_set_all_check_delta</a>(defer_delta_check);</div>
-<div class="line"><a id="l05032" name="l05032"></a><span class="lineno"> 5032</span>  }</div>
-<div class="line"><a id="l05033" name="l05033"></a><span class="lineno"> 5033</span> </div>
-<div class="line"><a id="l05034" name="l05034"></a><span class="lineno"> 5034</span>  <span class="comment">/* @todo After we implement graceful close, if we&#39;d emptied m_snd_buf above, then here we should</span></div>
-<div class="line"><a id="l05035" name="l05035"></a><span class="lineno"> 5035</span><span class="comment">   * advance the graceful close towards the final situation (m_int_state and m_state both</span></div>
-<div class="line"><a id="l05036" name="l05036"></a><span class="lineno"> 5036</span><span class="comment">   * S_CLOSED). */</span></div>
-<div class="line"><a id="l05037" name="l05037"></a><span class="lineno"> 5037</span>} <span class="comment">// Node::send_worker()</span></div>
-<div class="line"><a id="l05038" name="l05038"></a><span class="lineno"> 5038</span> </div>
-<div class="line"><a id="l05039" name="l05039"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657"> 5039</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657">Node::can_send</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
-<div class="line"><a id="l05040" name="l05040"></a><span class="lineno"> 5040</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l05041" name="l05041"></a><span class="lineno"> 5041</span>  <span class="keyword">using </span>std::min;</div>
-<div class="line"><a id="l05042" name="l05042"></a><span class="lineno"> 5042</span> </div>
-<div class="line"><a id="l05043" name="l05043"></a><span class="lineno"> 5043</span>  <span class="comment">/* m_snd_cong_ctl is the congestion control module, and its CWND value determines how many bytes can</span></div>
-<div class="line"><a id="l05044" name="l05044"></a><span class="lineno"> 5044</span><span class="comment">   * be In-flight at any given time.  If there are enough free bytes (CWND - In-flight) to send</span></div>
-<div class="line"><a id="l05045" name="l05045"></a><span class="lineno"> 5045</span><span class="comment">   * data, then we can send.  Otherwise we cannot.  Easy, except what&#39;s &quot;data&quot;?  There are two</span></div>
-<div class="line"><a id="l05046" name="l05046"></a><span class="lineno"> 5046</span><span class="comment">   * reasonable answers.  One: a byte or more.  Two: min(max-block-size, Send buffer size).  The former</span></div>
-<div class="line"><a id="l05047" name="l05047"></a><span class="lineno"> 5047</span><span class="comment">   * answer is fine but somewhat annoying, because then we have to lock sock here***.  The 2nd answer</span></div>
-<div class="line"><a id="l05048" name="l05048"></a><span class="lineno"> 5048</span><span class="comment">   * clearly works but is potentially a little greedier than necessary (i.e., if the 1st block to</span></div>
-<div class="line"><a id="l05049" name="l05049"></a><span class="lineno"> 5049</span><span class="comment">   * send is small enough to fit into CWND, but CWND doesn&#39;t have max-block-size space).</span></div>
-<div class="line"><a id="l05050" name="l05050"></a><span class="lineno"> 5050</span><span class="comment">   * However, actually, we pretty much have to choose the 2nd answer regardless, as we don&#39;t want to</span></div>
-<div class="line"><a id="l05051" name="l05051"></a><span class="lineno"> 5051</span><span class="comment">   * fragment max-block-size-sized chunks, if we can help it (in the spirit of the reliability</span></div>
-<div class="line"><a id="l05052" name="l05052"></a><span class="lineno"> 5052</span><span class="comment">   * guarantee [when running in unreliable mode] made in send() method doc header).</span></div>
-<div class="line"><a id="l05053" name="l05053"></a><span class="lineno"> 5053</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05054" name="l05054"></a><span class="lineno"> 5054</span><span class="comment">   * I choose the 2nd answer, because (1) it&#39;s easier (no locking of sock); (2) it is used by real</span></div>
-<div class="line"><a id="l05055" name="l05055"></a><span class="lineno"> 5055</span><span class="comment">   * TCP implementations which keep CWND in multiples of MSS (equivalent of max-block-size); (3)</span></div>
-<div class="line"><a id="l05056" name="l05056"></a><span class="lineno"> 5056</span><span class="comment">   * it&#39;s still safe; and (4) see previous paragraph&#39;s end.  Regarding safety: it&#39;s safe, since</span></div>
-<div class="line"><a id="l05057" name="l05057"></a><span class="lineno"> 5057</span><span class="comment">   * there can be no deadlock, because even if there&#39;s &lt; MBS bytes free, eventually In-flight</span></div>
-<div class="line"><a id="l05058" name="l05058"></a><span class="lineno"> 5058</span><span class="comment">   * packets will become Acknowledged or Dropped and no longer be In-flight, freeing up CWND space;</span></div>
-<div class="line"><a id="l05059" name="l05059"></a><span class="lineno"> 5059</span><span class="comment">   * and CWND is guaranteed to always be at least 1 * MBS. Thus eventually can_send() will return</span></div>
-<div class="line"><a id="l05060" name="l05060"></a><span class="lineno"> 5060</span><span class="comment">   * true.</span></div>
-<div class="line"><a id="l05061" name="l05061"></a><span class="lineno"> 5061</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05062" name="l05062"></a><span class="lineno"> 5062</span><span class="comment">   * *** - I am now not sure why I wrote this.  Why would we have to lock sock here in that case? */</span></div>
-<div class="line"><a id="l05063" name="l05063"></a><span class="lineno"> 5063</span> </div>
-<div class="line"><a id="l05064" name="l05064"></a><span class="lineno"> 5064</span>  <span class="comment">// We have rcv_wnd also; so pretend previous paragraph has: s/CWND/min(CWND, rcv_wnd)/.</span></div>
-<div class="line"><a id="l05065" name="l05065"></a><span class="lineno"> 5065</span> </div>
-<div class="line"><a id="l05066" name="l05066"></a><span class="lineno"> 5066</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> pipe_taken = sock-&gt;m_snd_flying_bytes;</div>
-<div class="line"><a id="l05067" name="l05067"></a><span class="lineno"> 5067</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> cong_wnd = sock-&gt;m_snd_cong_ctl-&gt;congestion_window_bytes();</div>
-<div class="line"><a id="l05068" name="l05068"></a><span class="lineno"> 5068</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span>&amp; rcv_wnd = sock-&gt;m_snd_remote_rcv_wnd; <span class="comment">// @todo Any particular reason this has &amp; but not pipe_taken?</span></div>
-<div class="line"><a id="l05069" name="l05069"></a><span class="lineno"> 5069</span>  <span class="comment">// Send no more than the network NOR the other side&#39;s Receive buffer can take.</span></div>
-<div class="line"><a id="l05070" name="l05070"></a><span class="lineno"> 5070</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> pipe_total = min(cong_wnd, rcv_wnd);</div>
+<div class="line"><a id="l04998" name="l04998"></a><span class="lineno"> 4998</span>      <span class="comment">// Add to snd_flying_pkts* and friends; update byte counts.</span></div>
+<div class="line"><a id="l04999" name="l04999"></a><span class="lineno"> 4999</span>      <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a52a3e10ef08b93daf87ea5f0f1e87062">snd_flying_pkts_push_one</a>(sock, data-&gt;m_seq_num, sent_pkt);</div>
+<div class="line"><a id="l05000" name="l05000"></a><span class="lineno"> 5000</span> </div>
+<div class="line"><a id="l05001" name="l05001"></a><span class="lineno"> 5001</span>      <span class="comment">/* By adding to m_snd_flying_pkts_by_sent_when (i.e., increasing In-flight byte count), we may have</span></div>
+<div class="line"><a id="l05002" name="l05002"></a><span class="lineno"> 5002</span><span class="comment">       * affected the result of can_send().  We do check it at the end of the while () body, so OK. */</span></div>
+<div class="line"><a id="l05003" name="l05003"></a><span class="lineno"> 5003</span> </div>
+<div class="line"><a id="l05004" name="l05004"></a><span class="lineno"> 5004</span>      <span class="comment">// Fill out common fields and asynchronously send packet (packet pacing potentially performed inside).</span></div>
+<div class="line"><a id="l05005" name="l05005"></a><span class="lineno"> 5005</span>      <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">async_sock_low_lvl_packet_send_or_close_immediately</a>(sock,</div>
+<div class="line"><a id="l05006" name="l05006"></a><span class="lineno"> 5006</span>                                                               <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(data),</div>
+<div class="line"><a id="l05007" name="l05007"></a><span class="lineno"> 5007</span>                                                               defer_delta_check))</div>
+<div class="line"><a id="l05008" name="l05008"></a><span class="lineno"> 5008</span>      {</div>
+<div class="line"><a id="l05009" name="l05009"></a><span class="lineno"> 5009</span>        <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05010" name="l05010"></a><span class="lineno"> 5010</span>      }</div>
+<div class="line"><a id="l05011" name="l05011"></a><span class="lineno"> 5011</span> </div>
+<div class="line"><a id="l05012" name="l05012"></a><span class="lineno"> 5012</span>      sock-&gt;m_snd_stats.data_sent(data-&gt;m_data.size(), rexmit);</div>
+<div class="line"><a id="l05013" name="l05013"></a><span class="lineno"> 5013</span>    }</div>
+<div class="line"><a id="l05014" name="l05014"></a><span class="lineno"> 5014</span>    <span class="keywordflow">while</span> (<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657">can_send</a>(sock) &amp;&amp; <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">snd_deqable</a>(sock)); <span class="comment">// (there is CWND/rcv_wnd space; and either rexmittable or new data)</span></div>
+<div class="line"><a id="l05015" name="l05015"></a><span class="lineno"> 5015</span> </div>
+<div class="line"><a id="l05016" name="l05016"></a><span class="lineno"> 5016</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]; connection [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: &quot;</span></div>
+<div class="line"><a id="l05017" name="l05017"></a><span class="lineno"> 5017</span>                   <span class="stringliteral">&quot;Final check: &quot;</span></div>
+<div class="line"><a id="l05018" name="l05018"></a><span class="lineno"> 5018</span>                   <span class="stringliteral">&quot;can_send() == [&quot;</span> &lt;&lt; <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657">can_send</a>(sock) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l05019" name="l05019"></a><span class="lineno"> 5019</span>                   <span class="stringliteral">&quot;snd_deqable() == [&quot;</span> &lt;&lt; <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">snd_deqable</a>(sock) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l05020" name="l05020"></a><span class="lineno"> 5020</span> </div>
+<div class="line"><a id="l05021" name="l05021"></a><span class="lineno"> 5021</span>    writable = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a70d124ba678e2ab72f8c6d28140ca137">snd_buf_enqable</a>(sock); <span class="comment">// Must do before releasing lock.</span></div>
+<div class="line"><a id="l05022" name="l05022"></a><span class="lineno"> 5022</span>  } <span class="comment">// lock</span></div>
+<div class="line"><a id="l05023" name="l05023"></a><span class="lineno"> 5023</span> </div>
+<div class="line"><a id="l05024" name="l05024"></a><span class="lineno"> 5024</span>  <span class="comment">/* Finally, check if the above has dequeued enough of m_snd_buf for it to accept more data from</span></div>
+<div class="line"><a id="l05025" name="l05025"></a><span class="lineno"> 5025</span><span class="comment">   * user.  If so, sock is certainly now Writable.  Therefore we should soon inform anyone waiting</span></div>
+<div class="line"><a id="l05026" name="l05026"></a><span class="lineno"> 5026</span><span class="comment">   * on any Event_sets for sock to become Writable.</span></div>
+<div class="line"><a id="l05027" name="l05027"></a><span class="lineno"> 5027</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05028" name="l05028"></a><span class="lineno"> 5028</span><span class="comment">   * Caveat: Similar to that in Node::handle_syn_ack_ack_to_syn_rcvd() at similar point in the</span></div>
+<div class="line"><a id="l05029" name="l05029"></a><span class="lineno"> 5029</span><span class="comment">   * code.</span></div>
+<div class="line"><a id="l05030" name="l05030"></a><span class="lineno"> 5030</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05031" name="l05031"></a><span class="lineno"> 5031</span><span class="comment">   * Also: why do this outside the above locked block?  Same reason as similar code in</span></div>
+<div class="line"><a id="l05032" name="l05032"></a><span class="lineno"> 5032</span><span class="comment">   * handle_data_to_established(). */</span></div>
+<div class="line"><a id="l05033" name="l05033"></a><span class="lineno"> 5033</span>  <span class="keywordflow">if</span> (writable &amp;&amp;</div>
+<div class="line"><a id="l05034" name="l05034"></a><span class="lineno"> 5034</span>      <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#ab0026feecdb74eda904d00d2c7016bab">m_sock_events</a>[<a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">Event_set::Event_type::S_PEER_SOCKET_WRITABLE</a>].insert(sock).second)</div>
+<div class="line"><a id="l05035" name="l05035"></a><span class="lineno"> 5035</span>  {</div>
+<div class="line"><a id="l05036" name="l05036"></a><span class="lineno"> 5036</span>    <span class="comment">// Possibly inform the user for any applicable Event_sets right now.</span></div>
+<div class="line"><a id="l05037" name="l05037"></a><span class="lineno"> 5037</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a8a4ddf81ddbeab1f740940c4cc0d3625">event_set_all_check_delta</a>(defer_delta_check);</div>
+<div class="line"><a id="l05038" name="l05038"></a><span class="lineno"> 5038</span>  }</div>
+<div class="line"><a id="l05039" name="l05039"></a><span class="lineno"> 5039</span> </div>
+<div class="line"><a id="l05040" name="l05040"></a><span class="lineno"> 5040</span>  <span class="comment">/* @todo After we implement graceful close, if we&#39;d emptied m_snd_buf above, then here we should</span></div>
+<div class="line"><a id="l05041" name="l05041"></a><span class="lineno"> 5041</span><span class="comment">   * advance the graceful close towards the final situation (m_int_state and m_state both</span></div>
+<div class="line"><a id="l05042" name="l05042"></a><span class="lineno"> 5042</span><span class="comment">   * S_CLOSED). */</span></div>
+<div class="line"><a id="l05043" name="l05043"></a><span class="lineno"> 5043</span>} <span class="comment">// Node::send_worker()</span></div>
+<div class="line"><a id="l05044" name="l05044"></a><span class="lineno"> 5044</span> </div>
+<div class="line"><a id="l05045" name="l05045"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657"> 5045</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657">Node::can_send</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
+<div class="line"><a id="l05046" name="l05046"></a><span class="lineno"> 5046</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l05047" name="l05047"></a><span class="lineno"> 5047</span>  <span class="keyword">using </span>std::min;</div>
+<div class="line"><a id="l05048" name="l05048"></a><span class="lineno"> 5048</span> </div>
+<div class="line"><a id="l05049" name="l05049"></a><span class="lineno"> 5049</span>  <span class="comment">/* m_snd_cong_ctl is the congestion control module, and its CWND value determines how many bytes can</span></div>
+<div class="line"><a id="l05050" name="l05050"></a><span class="lineno"> 5050</span><span class="comment">   * be In-flight at any given time.  If there are enough free bytes (CWND - In-flight) to send</span></div>
+<div class="line"><a id="l05051" name="l05051"></a><span class="lineno"> 5051</span><span class="comment">   * data, then we can send.  Otherwise we cannot.  Easy, except what&#39;s &quot;data&quot;?  There are two</span></div>
+<div class="line"><a id="l05052" name="l05052"></a><span class="lineno"> 5052</span><span class="comment">   * reasonable answers.  One: a byte or more.  Two: min(max-block-size, Send buffer size).  The former</span></div>
+<div class="line"><a id="l05053" name="l05053"></a><span class="lineno"> 5053</span><span class="comment">   * answer is fine but somewhat annoying, because then we have to lock sock here***.  The 2nd answer</span></div>
+<div class="line"><a id="l05054" name="l05054"></a><span class="lineno"> 5054</span><span class="comment">   * clearly works but is potentially a little greedier than necessary (i.e., if the 1st block to</span></div>
+<div class="line"><a id="l05055" name="l05055"></a><span class="lineno"> 5055</span><span class="comment">   * send is small enough to fit into CWND, but CWND doesn&#39;t have max-block-size space).</span></div>
+<div class="line"><a id="l05056" name="l05056"></a><span class="lineno"> 5056</span><span class="comment">   * However, actually, we pretty much have to choose the 2nd answer regardless, as we don&#39;t want to</span></div>
+<div class="line"><a id="l05057" name="l05057"></a><span class="lineno"> 5057</span><span class="comment">   * fragment max-block-size-sized chunks, if we can help it (in the spirit of the reliability</span></div>
+<div class="line"><a id="l05058" name="l05058"></a><span class="lineno"> 5058</span><span class="comment">   * guarantee [when running in unreliable mode] made in send() method doc header).</span></div>
+<div class="line"><a id="l05059" name="l05059"></a><span class="lineno"> 5059</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05060" name="l05060"></a><span class="lineno"> 5060</span><span class="comment">   * I choose the 2nd answer, because (1) it&#39;s easier (no locking of sock); (2) it is used by real</span></div>
+<div class="line"><a id="l05061" name="l05061"></a><span class="lineno"> 5061</span><span class="comment">   * TCP implementations which keep CWND in multiples of MSS (equivalent of max-block-size); (3)</span></div>
+<div class="line"><a id="l05062" name="l05062"></a><span class="lineno"> 5062</span><span class="comment">   * it&#39;s still safe; and (4) see previous paragraph&#39;s end.  Regarding safety: it&#39;s safe, since</span></div>
+<div class="line"><a id="l05063" name="l05063"></a><span class="lineno"> 5063</span><span class="comment">   * there can be no deadlock, because even if there&#39;s &lt; MBS bytes free, eventually In-flight</span></div>
+<div class="line"><a id="l05064" name="l05064"></a><span class="lineno"> 5064</span><span class="comment">   * packets will become Acknowledged or Dropped and no longer be In-flight, freeing up CWND space;</span></div>
+<div class="line"><a id="l05065" name="l05065"></a><span class="lineno"> 5065</span><span class="comment">   * and CWND is guaranteed to always be at least 1 * MBS. Thus eventually can_send() will return</span></div>
+<div class="line"><a id="l05066" name="l05066"></a><span class="lineno"> 5066</span><span class="comment">   * true.</span></div>
+<div class="line"><a id="l05067" name="l05067"></a><span class="lineno"> 5067</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05068" name="l05068"></a><span class="lineno"> 5068</span><span class="comment">   * *** - I am now not sure why I wrote this.  Why would we have to lock sock here in that case? */</span></div>
+<div class="line"><a id="l05069" name="l05069"></a><span class="lineno"> 5069</span> </div>
+<div class="line"><a id="l05070" name="l05070"></a><span class="lineno"> 5070</span>  <span class="comment">// We have rcv_wnd also; so pretend previous paragraph has: s/CWND/min(CWND, rcv_wnd)/.</span></div>
 <div class="line"><a id="l05071" name="l05071"></a><span class="lineno"> 5071</span> </div>
-<div class="line"><a id="l05072" name="l05072"></a><span class="lineno"> 5072</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> can</div>
-<div class="line"><a id="l05073" name="l05073"></a><span class="lineno"> 5073</span>    = (pipe_taken &lt; pipe_total) &amp;&amp; ((pipe_total - pipe_taken) &gt;= sock-&gt;max_block_size());</div>
-<div class="line"><a id="l05074" name="l05074"></a><span class="lineno"> 5074</span> </div>
-<div class="line"><a id="l05075" name="l05075"></a><span class="lineno"> 5075</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;cong_ctl [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] info: can_send = [&quot;</span> &lt;&lt; can &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l05076" name="l05076"></a><span class="lineno"> 5076</span>                 <span class="stringliteral">&quot;pipe_taken = [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(pipe_taken) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l05077" name="l05077"></a><span class="lineno"> 5077</span>                 <span class="stringliteral">&quot;cong_wnd = [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(cong_wnd) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l05078" name="l05078"></a><span class="lineno"> 5078</span>                 <span class="stringliteral">&quot;rcv_wnd = [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(rcv_wnd) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l05079" name="l05079"></a><span class="lineno"> 5079</span> </div>
-<div class="line"><a id="l05080" name="l05080"></a><span class="lineno"> 5080</span>  <span class="keywordflow">return</span> can;</div>
-<div class="line"><a id="l05081" name="l05081"></a><span class="lineno"> 5081</span>} <span class="comment">// Node::can_send()</span></div>
-<div class="line"><a id="l05082" name="l05082"></a><span class="lineno"> 5082</span> </div>
-<div class="line"><a id="l05083" name="l05083"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#addbb96858fd7b3c9ddd7c6fe8078809c"> 5083</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#addbb96858fd7b3c9ddd7c6fe8078809c">Node::receive</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
-<div class="line"><a id="l05084" name="l05084"></a><span class="lineno"> 5084</span>                     <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keywordtype">size_t</span> ()&gt;&amp; rcv_buf_consume_func,</div>
-<div class="line"><a id="l05085" name="l05085"></a><span class="lineno"> 5085</span>                     <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l05086" name="l05086"></a><span class="lineno"> 5086</span>{</div>
-<div class="line"><a id="l05087" name="l05087"></a><span class="lineno"> 5087</span>  <span class="keyword">using </span>boost::asio::post;</div>
+<div class="line"><a id="l05072" name="l05072"></a><span class="lineno"> 5072</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> pipe_taken = sock-&gt;m_snd_flying_bytes;</div>
+<div class="line"><a id="l05073" name="l05073"></a><span class="lineno"> 5073</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> cong_wnd = sock-&gt;m_snd_cong_ctl-&gt;congestion_window_bytes();</div>
+<div class="line"><a id="l05074" name="l05074"></a><span class="lineno"> 5074</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span>&amp; rcv_wnd = sock-&gt;m_snd_remote_rcv_wnd; <span class="comment">// @todo Any particular reason this has &amp; but not pipe_taken?</span></div>
+<div class="line"><a id="l05075" name="l05075"></a><span class="lineno"> 5075</span>  <span class="comment">// Send no more than the network NOR the other side&#39;s Receive buffer can take.</span></div>
+<div class="line"><a id="l05076" name="l05076"></a><span class="lineno"> 5076</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> pipe_total = min(cong_wnd, rcv_wnd);</div>
+<div class="line"><a id="l05077" name="l05077"></a><span class="lineno"> 5077</span> </div>
+<div class="line"><a id="l05078" name="l05078"></a><span class="lineno"> 5078</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> can</div>
+<div class="line"><a id="l05079" name="l05079"></a><span class="lineno"> 5079</span>    = (pipe_taken &lt; pipe_total) &amp;&amp; ((pipe_total - pipe_taken) &gt;= sock-&gt;max_block_size());</div>
+<div class="line"><a id="l05080" name="l05080"></a><span class="lineno"> 5080</span> </div>
+<div class="line"><a id="l05081" name="l05081"></a><span class="lineno"> 5081</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;cong_ctl [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] info: can_send = [&quot;</span> &lt;&lt; can &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l05082" name="l05082"></a><span class="lineno"> 5082</span>                 <span class="stringliteral">&quot;pipe_taken = [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(pipe_taken) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l05083" name="l05083"></a><span class="lineno"> 5083</span>                 <span class="stringliteral">&quot;cong_wnd = [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(cong_wnd) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l05084" name="l05084"></a><span class="lineno"> 5084</span>                 <span class="stringliteral">&quot;rcv_wnd = [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(rcv_wnd) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l05085" name="l05085"></a><span class="lineno"> 5085</span> </div>
+<div class="line"><a id="l05086" name="l05086"></a><span class="lineno"> 5086</span>  <span class="keywordflow">return</span> can;</div>
+<div class="line"><a id="l05087" name="l05087"></a><span class="lineno"> 5087</span>} <span class="comment">// Node::can_send()</span></div>
 <div class="line"><a id="l05088" name="l05088"></a><span class="lineno"> 5088</span> </div>
-<div class="line"><a id="l05089" name="l05089"></a><span class="lineno"> 5089</span>  <span class="comment">/* We are in user thread U != W.</span></div>
-<div class="line"><a id="l05090" name="l05090"></a><span class="lineno"> 5090</span><span class="comment">   * It&#39;s important to keep that in mind in this method.  In particular, it is absolutely unsafe to</span></div>
-<div class="line"><a id="l05091" name="l05091"></a><span class="lineno"> 5091</span><span class="comment">   * access m_int_state, which belongs solely to thread W and is never locked. */</span></div>
-<div class="line"><a id="l05092" name="l05092"></a><span class="lineno"> 5092</span> </div>
-<div class="line"><a id="l05093" name="l05093"></a><span class="lineno"> 5093</span>  <span class="comment">// IMPORTANT: The logic here must be consistent with sock_is_readable().</span></div>
+<div class="line"><a id="l05089" name="l05089"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#addbb96858fd7b3c9ddd7c6fe8078809c"> 5089</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#addbb96858fd7b3c9ddd7c6fe8078809c">Node::receive</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
+<div class="line"><a id="l05090" name="l05090"></a><span class="lineno"> 5090</span>                     <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keywordtype">size_t</span> ()&gt;&amp; rcv_buf_consume_func,</div>
+<div class="line"><a id="l05091" name="l05091"></a><span class="lineno"> 5091</span>                     <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l05092" name="l05092"></a><span class="lineno"> 5092</span>{</div>
+<div class="line"><a id="l05093" name="l05093"></a><span class="lineno"> 5093</span>  <span class="keyword">using </span>boost::asio::post;</div>
 <div class="line"><a id="l05094" name="l05094"></a><span class="lineno"> 5094</span> </div>
-<div class="line"><a id="l05095" name="l05095"></a><span class="lineno"> 5095</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">running</a>())</div>
-<div class="line"><a id="l05096" name="l05096"></a><span class="lineno"> 5096</span>  {</div>
-<div class="line"><a id="l05097" name="l05097"></a><span class="lineno"> 5097</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>);</div>
-<div class="line"><a id="l05098" name="l05098"></a><span class="lineno"> 5098</span>    <span class="keywordflow">return</span> 0;</div>
-<div class="line"><a id="l05099" name="l05099"></a><span class="lineno"> 5099</span>  }</div>
-<div class="line"><a id="l05100" name="l05100"></a><span class="lineno"> 5100</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l05101" name="l05101"></a><span class="lineno"> 5101</span> </div>
-<div class="line"><a id="l05102" name="l05102"></a><span class="lineno"> 5102</span>  <span class="comment">// Pre-condition is that m_mutex is locked already.  So EVERYTHING that can be locked, is, including the buffers.</span></div>
-<div class="line"><a id="l05103" name="l05103"></a><span class="lineno"> 5103</span> </div>
-<div class="line"><a id="l05104" name="l05104"></a><span class="lineno"> 5104</span>  <span class="comment">// Pre-condition.</span></div>
-<div class="line"><a id="l05105" name="l05105"></a><span class="lineno"> 5105</span>  assert(sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>); <span class="comment">// Locked.</span></div>
-<div class="line"><a id="l05106" name="l05106"></a><span class="lineno"> 5106</span>  assert((sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">Peer_socket::Open_sub_state::S_CONNECTED</a>) ||</div>
-<div class="line"><a id="l05107" name="l05107"></a><span class="lineno"> 5107</span>         (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">Peer_socket::Open_sub_state::S_CONNECTING</a>) ||</div>
-<div class="line"><a id="l05108" name="l05108"></a><span class="lineno"> 5108</span>         (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>));</div>
+<div class="line"><a id="l05095" name="l05095"></a><span class="lineno"> 5095</span>  <span class="comment">/* We are in user thread U != W.</span></div>
+<div class="line"><a id="l05096" name="l05096"></a><span class="lineno"> 5096</span><span class="comment">   * It&#39;s important to keep that in mind in this method.  In particular, it is absolutely unsafe to</span></div>
+<div class="line"><a id="l05097" name="l05097"></a><span class="lineno"> 5097</span><span class="comment">   * access m_int_state, which belongs solely to thread W and is never locked. */</span></div>
+<div class="line"><a id="l05098" name="l05098"></a><span class="lineno"> 5098</span> </div>
+<div class="line"><a id="l05099" name="l05099"></a><span class="lineno"> 5099</span>  <span class="comment">// IMPORTANT: The logic here must be consistent with sock_is_readable().</span></div>
+<div class="line"><a id="l05100" name="l05100"></a><span class="lineno"> 5100</span> </div>
+<div class="line"><a id="l05101" name="l05101"></a><span class="lineno"> 5101</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">running</a>())</div>
+<div class="line"><a id="l05102" name="l05102"></a><span class="lineno"> 5102</span>  {</div>
+<div class="line"><a id="l05103" name="l05103"></a><span class="lineno"> 5103</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>);</div>
+<div class="line"><a id="l05104" name="l05104"></a><span class="lineno"> 5104</span>    <span class="keywordflow">return</span> 0;</div>
+<div class="line"><a id="l05105" name="l05105"></a><span class="lineno"> 5105</span>  }</div>
+<div class="line"><a id="l05106" name="l05106"></a><span class="lineno"> 5106</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l05107" name="l05107"></a><span class="lineno"> 5107</span> </div>
+<div class="line"><a id="l05108" name="l05108"></a><span class="lineno"> 5108</span>  <span class="comment">// Pre-condition is that m_mutex is locked already.  So EVERYTHING that can be locked, is, including the buffers.</span></div>
 <div class="line"><a id="l05109" name="l05109"></a><span class="lineno"> 5109</span> </div>
-<div class="line"><a id="l05110" name="l05110"></a><span class="lineno"> 5110</span>  <span class="comment">/* In the rest of the method we must ensure we handle all the cases (-1a/b/c-, -2-) documented in</span></div>
-<div class="line"><a id="l05111" name="l05111"></a><span class="lineno"> 5111</span><span class="comment">   * the Peer_socket::receive() documentation header.  -3- was already handled by</span></div>
-<div class="line"><a id="l05112" name="l05112"></a><span class="lineno"> 5112</span><span class="comment">   * Peer_socket::receive() before calling us. */</span></div>
-<div class="line"><a id="l05113" name="l05113"></a><span class="lineno"> 5113</span> </div>
-<div class="line"><a id="l05114" name="l05114"></a><span class="lineno"> 5114</span>  <span class="comment">// Try to dequeue stuff into their buffer.</span></div>
-<div class="line"><a id="l05115" name="l05115"></a><span class="lineno"> 5115</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> no_bytes_available = sock-&gt;m_rcv_buf.empty();</div>
-<div class="line"><a id="l05116" name="l05116"></a><span class="lineno"> 5116</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> bytes_consumed = rcv_buf_consume_func();</div>
-<div class="line"><a id="l05117" name="l05117"></a><span class="lineno"> 5117</span> </div>
-<div class="line"><a id="l05118" name="l05118"></a><span class="lineno"> 5118</span>  <span class="keywordflow">if</span> (bytes_consumed != 0)</div>
-<div class="line"><a id="l05119" name="l05119"></a><span class="lineno"> 5119</span>  {</div>
-<div class="line"><a id="l05120" name="l05120"></a><span class="lineno"> 5120</span>    <span class="comment">/* Unequivocal: if there was stuff in the Receive buffer and was able to place it into their</span></div>
-<div class="line"><a id="l05121" name="l05121"></a><span class="lineno"> 5121</span><span class="comment">     * buffer then there is no error.  (Even if m_disconnect_cause is not success, we are only</span></div>
-<div class="line"><a id="l05122" name="l05122"></a><span class="lineno"> 5122</span><span class="comment">     * supposed to report that after the Receive buffer has been emptied.)</span></div>
-<div class="line"><a id="l05123" name="l05123"></a><span class="lineno"> 5123</span><span class="comment">     *</span></div>
-<div class="line"><a id="l05124" name="l05124"></a><span class="lineno"> 5124</span><span class="comment">     * This handles case -2-. */</span></div>
-<div class="line"><a id="l05125" name="l05125"></a><span class="lineno"> 5125</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;User thread receive() for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l05126" name="l05126"></a><span class="lineno"> 5126</span>                   <span class="stringliteral">&quot;has successfully returned [&quot;</span> &lt;&lt; bytes_consumed &lt;&lt; <span class="stringliteral">&quot;] bytes.&quot;</span>);</div>
-<div class="line"><a id="l05127" name="l05127"></a><span class="lineno"> 5127</span>    err_code-&gt;clear();</div>
-<div class="line"><a id="l05128" name="l05128"></a><span class="lineno"> 5128</span> </div>
-<div class="line"><a id="l05129" name="l05129"></a><span class="lineno"> 5129</span>    <span class="comment">/* We have changed (increased) the amount of free space in m_rcv_buf.  This has rcv_wnd</span></div>
-<div class="line"><a id="l05130" name="l05130"></a><span class="lineno"> 5130</span><span class="comment">     * implications.  We have to at least check whether we should send a window update to the</span></div>
-<div class="line"><a id="l05131" name="l05131"></a><span class="lineno"> 5131</span><span class="comment">     * other side.  However all such book-keeping must be done in thread W due to the data</span></div>
-<div class="line"><a id="l05132" name="l05132"></a><span class="lineno"> 5132</span><span class="comment">     * involved; call this-&gt;receive_wnd_updated(sock). */</span></div>
-<div class="line"><a id="l05133" name="l05133"></a><span class="lineno"> 5133</span>    post(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>, [<span class="keyword">this</span>, sock]() { <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a08cf95363b26c0c676979437e34db357">receive_wnd_updated</a>(sock); });</div>
+<div class="line"><a id="l05110" name="l05110"></a><span class="lineno"> 5110</span>  <span class="comment">// Pre-condition.</span></div>
+<div class="line"><a id="l05111" name="l05111"></a><span class="lineno"> 5111</span>  assert(sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>); <span class="comment">// Locked.</span></div>
+<div class="line"><a id="l05112" name="l05112"></a><span class="lineno"> 5112</span>  assert((sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">Peer_socket::Open_sub_state::S_CONNECTED</a>) ||</div>
+<div class="line"><a id="l05113" name="l05113"></a><span class="lineno"> 5113</span>         (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">Peer_socket::Open_sub_state::S_CONNECTING</a>) ||</div>
+<div class="line"><a id="l05114" name="l05114"></a><span class="lineno"> 5114</span>         (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>));</div>
+<div class="line"><a id="l05115" name="l05115"></a><span class="lineno"> 5115</span> </div>
+<div class="line"><a id="l05116" name="l05116"></a><span class="lineno"> 5116</span>  <span class="comment">/* In the rest of the method we must ensure we handle all the cases (-1a/b/c-, -2-) documented in</span></div>
+<div class="line"><a id="l05117" name="l05117"></a><span class="lineno"> 5117</span><span class="comment">   * the Peer_socket::receive() documentation header.  -3- was already handled by</span></div>
+<div class="line"><a id="l05118" name="l05118"></a><span class="lineno"> 5118</span><span class="comment">   * Peer_socket::receive() before calling us. */</span></div>
+<div class="line"><a id="l05119" name="l05119"></a><span class="lineno"> 5119</span> </div>
+<div class="line"><a id="l05120" name="l05120"></a><span class="lineno"> 5120</span>  <span class="comment">// Try to dequeue stuff into their buffer.</span></div>
+<div class="line"><a id="l05121" name="l05121"></a><span class="lineno"> 5121</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> no_bytes_available = sock-&gt;m_rcv_buf.empty();</div>
+<div class="line"><a id="l05122" name="l05122"></a><span class="lineno"> 5122</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> bytes_consumed = rcv_buf_consume_func();</div>
+<div class="line"><a id="l05123" name="l05123"></a><span class="lineno"> 5123</span> </div>
+<div class="line"><a id="l05124" name="l05124"></a><span class="lineno"> 5124</span>  <span class="keywordflow">if</span> (bytes_consumed != 0)</div>
+<div class="line"><a id="l05125" name="l05125"></a><span class="lineno"> 5125</span>  {</div>
+<div class="line"><a id="l05126" name="l05126"></a><span class="lineno"> 5126</span>    <span class="comment">/* Unequivocal: if there was stuff in the Receive buffer and was able to place it into their</span></div>
+<div class="line"><a id="l05127" name="l05127"></a><span class="lineno"> 5127</span><span class="comment">     * buffer then there is no error.  (Even if m_disconnect_cause is not success, we are only</span></div>
+<div class="line"><a id="l05128" name="l05128"></a><span class="lineno"> 5128</span><span class="comment">     * supposed to report that after the Receive buffer has been emptied.)</span></div>
+<div class="line"><a id="l05129" name="l05129"></a><span class="lineno"> 5129</span><span class="comment">     *</span></div>
+<div class="line"><a id="l05130" name="l05130"></a><span class="lineno"> 5130</span><span class="comment">     * This handles case -2-. */</span></div>
+<div class="line"><a id="l05131" name="l05131"></a><span class="lineno"> 5131</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;User thread receive() for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l05132" name="l05132"></a><span class="lineno"> 5132</span>                   <span class="stringliteral">&quot;has successfully returned [&quot;</span> &lt;&lt; bytes_consumed &lt;&lt; <span class="stringliteral">&quot;] bytes.&quot;</span>);</div>
+<div class="line"><a id="l05133" name="l05133"></a><span class="lineno"> 5133</span>    err_code-&gt;clear();</div>
 <div class="line"><a id="l05134" name="l05134"></a><span class="lineno"> 5134</span> </div>
-<div class="line"><a id="l05135" name="l05135"></a><span class="lineno"> 5135</span>    <span class="keywordflow">if</span> (sock-&gt;m_rcv_buf.empty()</div>
-<div class="line"><a id="l05136" name="l05136"></a><span class="lineno"> 5136</span>        &amp;&amp; (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>))</div>
-<div class="line"><a id="l05137" name="l05137"></a><span class="lineno"> 5137</span>    {</div>
-<div class="line"><a id="l05138" name="l05138"></a><span class="lineno"> 5138</span>      <span class="comment">/* We&#39;ve emptied the Receive buffer; and we&#39;re in the middle of a graceful close.  (@todo</span></div>
-<div class="line"><a id="l05139" name="l05139"></a><span class="lineno"> 5139</span><span class="comment">       * Graceful close not yet implemented.)  There are two possibilities.  One, m_int_state ==</span></div>
-<div class="line"><a id="l05140" name="l05140"></a><span class="lineno"> 5140</span><span class="comment">       * S_CLOSED.  In this case the graceful close, at the transport layer, is over, and the only</span></div>
-<div class="line"><a id="l05141" name="l05141"></a><span class="lineno"> 5141</span><span class="comment">       * thing stopping us from entering m_state == S_CLOSED (via close_connection_immediately())</span></div>
-<div class="line"><a id="l05142" name="l05142"></a><span class="lineno"> 5142</span><span class="comment">       * was that the user hadn&#39;t read all of m_rcv_buf.  In this case thread W should</span></div>
-<div class="line"><a id="l05143" name="l05143"></a><span class="lineno"> 5143</span><span class="comment">       * close_connection_immediately().  Two, m_int_state may be after ESTABLISHED but before</span></div>
-<div class="line"><a id="l05144" name="l05144"></a><span class="lineno"> 5144</span><span class="comment">       * CLOSED, in which case thread W still has to finish up graceful closing anyway.</span></div>
-<div class="line"><a id="l05145" name="l05145"></a><span class="lineno"> 5145</span><span class="comment">       *</span></div>
-<div class="line"><a id="l05146" name="l05146"></a><span class="lineno"> 5146</span><span class="comment">       * We are in thread W and cannot work with m_int_state, so checking it here is not possible.</span></div>
-<div class="line"><a id="l05147" name="l05147"></a><span class="lineno"> 5147</span><span class="comment">       * Therefore we put this task onto thread W. */</span></div>
-<div class="line"><a id="l05148" name="l05148"></a><span class="lineno"> 5148</span>      post(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>,</div>
-<div class="line"><a id="l05149" name="l05149"></a><span class="lineno"> 5149</span>           [<span class="keyword">this</span>, sock]() { <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad608f9bbe76426f4fbf4bf5af908e4e0">receive_emptied_rcv_buf_while_disconnecting</a>(sock); });</div>
-<div class="line"><a id="l05150" name="l05150"></a><span class="lineno"> 5150</span>    }</div>
-<div class="line"><a id="l05151" name="l05151"></a><span class="lineno"> 5151</span>    <span class="keywordflow">return</span> bytes_consumed;</div>
-<div class="line"><a id="l05152" name="l05152"></a><span class="lineno"> 5152</span>  }</div>
-<div class="line"><a id="l05153" name="l05153"></a><span class="lineno"> 5153</span>  <span class="comment">// else if (bytes_consumed == 0)</span></div>
-<div class="line"><a id="l05154" name="l05154"></a><span class="lineno"> 5154</span> </div>
-<div class="line"><a id="l05155" name="l05155"></a><span class="lineno"> 5155</span>  <span class="keywordflow">if</span> (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">Peer_socket::Open_sub_state::S_CONNECTING</a>)</div>
-<div class="line"><a id="l05156" name="l05156"></a><span class="lineno"> 5156</span>  {</div>
-<div class="line"><a id="l05157" name="l05157"></a><span class="lineno"> 5157</span>    <span class="comment">/* This is case -1b-.  Since we are CONNECTING, no data could have been received yet (simply</span></div>
-<div class="line"><a id="l05158" name="l05158"></a><span class="lineno"> 5158</span><span class="comment">     * not at that stage of connection opening), so Receive buffer is empty. */</span></div>
-<div class="line"><a id="l05159" name="l05159"></a><span class="lineno"> 5159</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;User thread receive() for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l05160" name="l05160"></a><span class="lineno"> 5160</span>                   <span class="stringliteral">&quot;has successfully returned no bytes because still not fully connected.&quot;</span>);</div>
-<div class="line"><a id="l05161" name="l05161"></a><span class="lineno"> 5161</span>    err_code-&gt;clear();</div>
-<div class="line"><a id="l05162" name="l05162"></a><span class="lineno"> 5162</span>    <span class="keywordflow">return</span> 0;</div>
-<div class="line"><a id="l05163" name="l05163"></a><span class="lineno"> 5163</span>  }</div>
-<div class="line"><a id="l05164" name="l05164"></a><span class="lineno"> 5164</span>  <span class="comment">// else if (state is CONNECTED or DISCONNECTING)</span></div>
-<div class="line"><a id="l05165" name="l05165"></a><span class="lineno"> 5165</span> </div>
-<div class="line"><a id="l05166" name="l05166"></a><span class="lineno"> 5166</span>  <span class="comment">/* We&#39;re CONNECTED or DISCONNECTING but could get no bytes.  Let&#39;s examine each state.</span></div>
-<div class="line"><a id="l05167" name="l05167"></a><span class="lineno"> 5167</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05168" name="l05168"></a><span class="lineno"> 5168</span><span class="comment">   *   - CONNECTED: Either they provided a zero-sized target buffer (in which case</span></div>
-<div class="line"><a id="l05169" name="l05169"></a><span class="lineno"> 5169</span><span class="comment">   *     !no_bytes_available), or the Receive buffer is simply empty.  Thus this is either -1a- or</span></div>
-<div class="line"><a id="l05170" name="l05170"></a><span class="lineno"> 5170</span><span class="comment">   *     -1c- (no_bytes_available determines which).</span></div>
-<div class="line"><a id="l05171" name="l05171"></a><span class="lineno"> 5171</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05172" name="l05172"></a><span class="lineno"> 5172</span><span class="comment">   *   - DISCONNECTING: Either:</span></div>
-<div class="line"><a id="l05173" name="l05173"></a><span class="lineno"> 5173</span><span class="comment">   *     - the initial block was too large for the max_data_size they provided in their receive()</span></div>
-<div class="line"><a id="l05174" name="l05174"></a><span class="lineno"> 5174</span><span class="comment">   *       call (in which case !no_bytes_available); or</span></div>
-<div class="line"><a id="l05175" name="l05175"></a><span class="lineno"> 5175</span><span class="comment">   *     - they called close_final() (@todo not yet implemented) and thus the Receive buffer was</span></div>
-<div class="line"><a id="l05176" name="l05176"></a><span class="lineno"> 5176</span><span class="comment">   *       cleared at that time, and all incoming data were ignored after that; thus the Receive</span></div>
-<div class="line"><a id="l05177" name="l05177"></a><span class="lineno"> 5177</span><span class="comment">   *       buffer is empty, but a graceful close is still in progress; or</span></div>
-<div class="line"><a id="l05178" name="l05178"></a><span class="lineno"> 5178</span><span class="comment">   *     - they did not call close_final(), but there is a graceful close in progress, and the</span></div>
-<div class="line"><a id="l05179" name="l05179"></a><span class="lineno"> 5179</span><span class="comment">   *       Receive buffer is simply empty.</span></div>
-<div class="line"><a id="l05180" name="l05180"></a><span class="lineno"> 5180</span><span class="comment">   *     Thus this is either -1a- or -1c-. */</span></div>
-<div class="line"><a id="l05181" name="l05181"></a><span class="lineno"> 5181</span> </div>
-<div class="line"><a id="l05182" name="l05182"></a><span class="lineno"> 5182</span>  <span class="keywordflow">if</span> (!no_bytes_available)</div>
-<div class="line"><a id="l05183" name="l05183"></a><span class="lineno"> 5183</span>  {</div>
-<div class="line"><a id="l05184" name="l05184"></a><span class="lineno"> 5184</span>    <span class="comment">// This is case -1c-.</span></div>
-<div class="line"><a id="l05185" name="l05185"></a><span class="lineno"> 5185</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;User thread receive() for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l05186" name="l05186"></a><span class="lineno"> 5186</span>                   <span class="stringliteral">&quot;has data to return, but the provided buffer size is too small.&quot;</span>);</div>
-<div class="line"><a id="l05187" name="l05187"></a><span class="lineno"> 5187</span>    err_code-&gt;clear();</div>
-<div class="line"><a id="l05188" name="l05188"></a><span class="lineno"> 5188</span>    <span class="keywordflow">return</span> 0;</div>
-<div class="line"><a id="l05189" name="l05189"></a><span class="lineno"> 5189</span>  }</div>
-<div class="line"><a id="l05190" name="l05190"></a><span class="lineno"> 5190</span>  <span class="comment">// else if (no_bytes_available)</span></div>
-<div class="line"><a id="l05191" name="l05191"></a><span class="lineno"> 5191</span> </div>
-<div class="line"><a id="l05192" name="l05192"></a><span class="lineno"> 5192</span>  <span class="comment">// This is case -1a-.</span></div>
-<div class="line"><a id="l05193" name="l05193"></a><span class="lineno"> 5193</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;User thread receive() for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l05194" name="l05194"></a><span class="lineno"> 5194</span>                 <span class="stringliteral">&quot;returning no data because Receive buffer empty.&quot;</span>);</div>
-<div class="line"><a id="l05195" name="l05195"></a><span class="lineno"> 5195</span> </div>
-<div class="line"><a id="l05196" name="l05196"></a><span class="lineno"> 5196</span>  err_code-&gt;clear();</div>
+<div class="line"><a id="l05135" name="l05135"></a><span class="lineno"> 5135</span>    <span class="comment">/* We have changed (increased) the amount of free space in m_rcv_buf.  This has rcv_wnd</span></div>
+<div class="line"><a id="l05136" name="l05136"></a><span class="lineno"> 5136</span><span class="comment">     * implications.  We have to at least check whether we should send a window update to the</span></div>
+<div class="line"><a id="l05137" name="l05137"></a><span class="lineno"> 5137</span><span class="comment">     * other side.  However all such book-keeping must be done in thread W due to the data</span></div>
+<div class="line"><a id="l05138" name="l05138"></a><span class="lineno"> 5138</span><span class="comment">     * involved; call this-&gt;receive_wnd_updated(sock). */</span></div>
+<div class="line"><a id="l05139" name="l05139"></a><span class="lineno"> 5139</span>    post(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>, [<span class="keyword">this</span>, sock]() { <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a08cf95363b26c0c676979437e34db357">receive_wnd_updated</a>(sock); });</div>
+<div class="line"><a id="l05140" name="l05140"></a><span class="lineno"> 5140</span> </div>
+<div class="line"><a id="l05141" name="l05141"></a><span class="lineno"> 5141</span>    <span class="keywordflow">if</span> (sock-&gt;m_rcv_buf.empty()</div>
+<div class="line"><a id="l05142" name="l05142"></a><span class="lineno"> 5142</span>        &amp;&amp; (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>))</div>
+<div class="line"><a id="l05143" name="l05143"></a><span class="lineno"> 5143</span>    {</div>
+<div class="line"><a id="l05144" name="l05144"></a><span class="lineno"> 5144</span>      <span class="comment">/* We&#39;ve emptied the Receive buffer; and we&#39;re in the middle of a graceful close.  (@todo</span></div>
+<div class="line"><a id="l05145" name="l05145"></a><span class="lineno"> 5145</span><span class="comment">       * Graceful close not yet implemented.)  There are two possibilities.  One, m_int_state ==</span></div>
+<div class="line"><a id="l05146" name="l05146"></a><span class="lineno"> 5146</span><span class="comment">       * S_CLOSED.  In this case the graceful close, at the transport layer, is over, and the only</span></div>
+<div class="line"><a id="l05147" name="l05147"></a><span class="lineno"> 5147</span><span class="comment">       * thing stopping us from entering m_state == S_CLOSED (via close_connection_immediately())</span></div>
+<div class="line"><a id="l05148" name="l05148"></a><span class="lineno"> 5148</span><span class="comment">       * was that the user hadn&#39;t read all of m_rcv_buf.  In this case thread W should</span></div>
+<div class="line"><a id="l05149" name="l05149"></a><span class="lineno"> 5149</span><span class="comment">       * close_connection_immediately().  Two, m_int_state may be after ESTABLISHED but before</span></div>
+<div class="line"><a id="l05150" name="l05150"></a><span class="lineno"> 5150</span><span class="comment">       * CLOSED, in which case thread W still has to finish up graceful closing anyway.</span></div>
+<div class="line"><a id="l05151" name="l05151"></a><span class="lineno"> 5151</span><span class="comment">       *</span></div>
+<div class="line"><a id="l05152" name="l05152"></a><span class="lineno"> 5152</span><span class="comment">       * We are in thread W and cannot work with m_int_state, so checking it here is not possible.</span></div>
+<div class="line"><a id="l05153" name="l05153"></a><span class="lineno"> 5153</span><span class="comment">       * Therefore we put this task onto thread W. */</span></div>
+<div class="line"><a id="l05154" name="l05154"></a><span class="lineno"> 5154</span>      post(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>,</div>
+<div class="line"><a id="l05155" name="l05155"></a><span class="lineno"> 5155</span>           [<span class="keyword">this</span>, sock]() { <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad608f9bbe76426f4fbf4bf5af908e4e0">receive_emptied_rcv_buf_while_disconnecting</a>(sock); });</div>
+<div class="line"><a id="l05156" name="l05156"></a><span class="lineno"> 5156</span>    }</div>
+<div class="line"><a id="l05157" name="l05157"></a><span class="lineno"> 5157</span>    <span class="keywordflow">return</span> bytes_consumed;</div>
+<div class="line"><a id="l05158" name="l05158"></a><span class="lineno"> 5158</span>  }</div>
+<div class="line"><a id="l05159" name="l05159"></a><span class="lineno"> 5159</span>  <span class="comment">// else if (bytes_consumed == 0)</span></div>
+<div class="line"><a id="l05160" name="l05160"></a><span class="lineno"> 5160</span> </div>
+<div class="line"><a id="l05161" name="l05161"></a><span class="lineno"> 5161</span>  <span class="keywordflow">if</span> (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">Peer_socket::Open_sub_state::S_CONNECTING</a>)</div>
+<div class="line"><a id="l05162" name="l05162"></a><span class="lineno"> 5162</span>  {</div>
+<div class="line"><a id="l05163" name="l05163"></a><span class="lineno"> 5163</span>    <span class="comment">/* This is case -1b-.  Since we are CONNECTING, no data could have been received yet (simply</span></div>
+<div class="line"><a id="l05164" name="l05164"></a><span class="lineno"> 5164</span><span class="comment">     * not at that stage of connection opening), so Receive buffer is empty. */</span></div>
+<div class="line"><a id="l05165" name="l05165"></a><span class="lineno"> 5165</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;User thread receive() for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l05166" name="l05166"></a><span class="lineno"> 5166</span>                   <span class="stringliteral">&quot;has successfully returned no bytes because still not fully connected.&quot;</span>);</div>
+<div class="line"><a id="l05167" name="l05167"></a><span class="lineno"> 5167</span>    err_code-&gt;clear();</div>
+<div class="line"><a id="l05168" name="l05168"></a><span class="lineno"> 5168</span>    <span class="keywordflow">return</span> 0;</div>
+<div class="line"><a id="l05169" name="l05169"></a><span class="lineno"> 5169</span>  }</div>
+<div class="line"><a id="l05170" name="l05170"></a><span class="lineno"> 5170</span>  <span class="comment">// else if (state is CONNECTED or DISCONNECTING)</span></div>
+<div class="line"><a id="l05171" name="l05171"></a><span class="lineno"> 5171</span> </div>
+<div class="line"><a id="l05172" name="l05172"></a><span class="lineno"> 5172</span>  <span class="comment">/* We&#39;re CONNECTED or DISCONNECTING but could get no bytes.  Let&#39;s examine each state.</span></div>
+<div class="line"><a id="l05173" name="l05173"></a><span class="lineno"> 5173</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05174" name="l05174"></a><span class="lineno"> 5174</span><span class="comment">   *   - CONNECTED: Either they provided a zero-sized target buffer (in which case</span></div>
+<div class="line"><a id="l05175" name="l05175"></a><span class="lineno"> 5175</span><span class="comment">   *     !no_bytes_available), or the Receive buffer is simply empty.  Thus this is either -1a- or</span></div>
+<div class="line"><a id="l05176" name="l05176"></a><span class="lineno"> 5176</span><span class="comment">   *     -1c- (no_bytes_available determines which).</span></div>
+<div class="line"><a id="l05177" name="l05177"></a><span class="lineno"> 5177</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05178" name="l05178"></a><span class="lineno"> 5178</span><span class="comment">   *   - DISCONNECTING: Either:</span></div>
+<div class="line"><a id="l05179" name="l05179"></a><span class="lineno"> 5179</span><span class="comment">   *     - the initial block was too large for the max_data_size they provided in their receive()</span></div>
+<div class="line"><a id="l05180" name="l05180"></a><span class="lineno"> 5180</span><span class="comment">   *       call (in which case !no_bytes_available); or</span></div>
+<div class="line"><a id="l05181" name="l05181"></a><span class="lineno"> 5181</span><span class="comment">   *     - they called close_final() (@todo not yet implemented) and thus the Receive buffer was</span></div>
+<div class="line"><a id="l05182" name="l05182"></a><span class="lineno"> 5182</span><span class="comment">   *       cleared at that time, and all incoming data were ignored after that; thus the Receive</span></div>
+<div class="line"><a id="l05183" name="l05183"></a><span class="lineno"> 5183</span><span class="comment">   *       buffer is empty, but a graceful close is still in progress; or</span></div>
+<div class="line"><a id="l05184" name="l05184"></a><span class="lineno"> 5184</span><span class="comment">   *     - they did not call close_final(), but there is a graceful close in progress, and the</span></div>
+<div class="line"><a id="l05185" name="l05185"></a><span class="lineno"> 5185</span><span class="comment">   *       Receive buffer is simply empty.</span></div>
+<div class="line"><a id="l05186" name="l05186"></a><span class="lineno"> 5186</span><span class="comment">   *     Thus this is either -1a- or -1c-. */</span></div>
+<div class="line"><a id="l05187" name="l05187"></a><span class="lineno"> 5187</span> </div>
+<div class="line"><a id="l05188" name="l05188"></a><span class="lineno"> 5188</span>  <span class="keywordflow">if</span> (!no_bytes_available)</div>
+<div class="line"><a id="l05189" name="l05189"></a><span class="lineno"> 5189</span>  {</div>
+<div class="line"><a id="l05190" name="l05190"></a><span class="lineno"> 5190</span>    <span class="comment">// This is case -1c-.</span></div>
+<div class="line"><a id="l05191" name="l05191"></a><span class="lineno"> 5191</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;User thread receive() for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l05192" name="l05192"></a><span class="lineno"> 5192</span>                   <span class="stringliteral">&quot;has data to return, but the provided buffer size is too small.&quot;</span>);</div>
+<div class="line"><a id="l05193" name="l05193"></a><span class="lineno"> 5193</span>    err_code-&gt;clear();</div>
+<div class="line"><a id="l05194" name="l05194"></a><span class="lineno"> 5194</span>    <span class="keywordflow">return</span> 0;</div>
+<div class="line"><a id="l05195" name="l05195"></a><span class="lineno"> 5195</span>  }</div>
+<div class="line"><a id="l05196" name="l05196"></a><span class="lineno"> 5196</span>  <span class="comment">// else if (no_bytes_available)</span></div>
 <div class="line"><a id="l05197" name="l05197"></a><span class="lineno"> 5197</span> </div>
-<div class="line"><a id="l05198" name="l05198"></a><span class="lineno"> 5198</span>  <span class="comment">/* @todo Sigh.  There&#39;s more.  Yes, in some situations we can return 0/success here.  In other</span></div>
-<div class="line"><a id="l05199" name="l05199"></a><span class="lineno"> 5199</span><span class="comment">   * situations, though, we should return 0/&lt;Error_code for graceful close&gt; here.  The latter</span></div>
-<div class="line"><a id="l05200" name="l05200"></a><span class="lineno"> 5200</span><span class="comment">   * case would be in the situations where we know no data is coming, or user has said he doesn&#39;t</span></div>
-<div class="line"><a id="l05201" name="l05201"></a><span class="lineno"> 5201</span><span class="comment">   * care about any more data:</span></div>
-<div class="line"><a id="l05202" name="l05202"></a><span class="lineno"> 5202</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05203" name="l05203"></a><span class="lineno"> 5203</span><span class="comment">   *   -1- A graceful close was initiated by the OTHER side.  (Therefore no data could be coming to</span></div>
-<div class="line"><a id="l05204" name="l05204"></a><span class="lineno"> 5204</span><span class="comment">   *       save into Receive buffer.)</span></div>
-<div class="line"><a id="l05205" name="l05205"></a><span class="lineno"> 5205</span><span class="comment">   *   -2- Only we initiated the graceful close, but it was via close_final(), i.e., user is not</span></div>
-<div class="line"><a id="l05206" name="l05206"></a><span class="lineno"> 5206</span><span class="comment">   *       interested in any incoming data anymore.  (Therefore we&#39;ll always just ignore any</span></div>
-<div class="line"><a id="l05207" name="l05207"></a><span class="lineno"> 5207</span><span class="comment">   *       incoming DATA and not put it into Receive buffer.)</span></div>
-<div class="line"><a id="l05208" name="l05208"></a><span class="lineno"> 5208</span><span class="comment">   *   -3- Only we initiated the graceful close, and it was via close_start() (i.e., user cares</span></div>
-<div class="line"><a id="l05209" name="l05209"></a><span class="lineno"> 5209</span><span class="comment">   *       about further incoming data); however, the final handshake has reached a state in which</span></div>
-<div class="line"><a id="l05210" name="l05210"></a><span class="lineno"> 5210</span><span class="comment">   *       further data cannot be incoming.  (Therefore no data could be coming to save into Receive</span></div>
-<div class="line"><a id="l05211" name="l05211"></a><span class="lineno"> 5211</span><span class="comment">   *       buffer.)</span></div>
-<div class="line"><a id="l05212" name="l05212"></a><span class="lineno"> 5212</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05213" name="l05213"></a><span class="lineno"> 5213</span><span class="comment">   * I am not writing code for this logic at this time.  The implementations depends on how</span></div>
-<div class="line"><a id="l05214" name="l05214"></a><span class="lineno"> 5214</span><span class="comment">   * exactly our graceful close works.  This entire method, right now, is dead code, since there is</span></div>
-<div class="line"><a id="l05215" name="l05215"></a><span class="lineno"> 5215</span><span class="comment">   * no graceful close, but I wrote it anyway to provide a skeleton for the future, since I</span></div>
-<div class="line"><a id="l05216" name="l05216"></a><span class="lineno"> 5216</span><span class="comment">   * already thought about it.  However it would be unreasonable to implement the above logic in the</span></div>
-<div class="line"><a id="l05217" name="l05217"></a><span class="lineno"> 5217</span><span class="comment">   * absence of graceful close in the first place, skeleton or not.  Therefore, dead code or not, I</span></div>
-<div class="line"><a id="l05218" name="l05218"></a><span class="lineno"> 5218</span><span class="comment">   * do the &quot;conservative&quot; thing: return 0/success even in the above situations.  Eventually the</span></div>
-<div class="line"><a id="l05219" name="l05219"></a><span class="lineno"> 5219</span><span class="comment">   * graceful close will complete, at which point we&#39;ll return an error anyway, so the user won&#39;t be</span></div>
-<div class="line"><a id="l05220" name="l05220"></a><span class="lineno"> 5220</span><span class="comment">   * left uninformed forever (worst case: the close will time out).</span></div>
-<div class="line"><a id="l05221" name="l05221"></a><span class="lineno"> 5221</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05222" name="l05222"></a><span class="lineno"> 5222</span><span class="comment">   * For when we do implement the above logic, some thoughts: Detecting the situation in thread U</span></div>
-<div class="line"><a id="l05223" name="l05223"></a><span class="lineno"> 5223</span><span class="comment">   * != W may be difficult and may introduce complex synchronization issues.  One way</span></div>
-<div class="line"><a id="l05224" name="l05224"></a><span class="lineno"> 5224</span><span class="comment">   * to do it might be to introduce synchronized bool Peer_socket::m_no_more_rcv_data, which</span></div>
-<div class="line"><a id="l05225" name="l05225"></a><span class="lineno"> 5225</span><span class="comment">   * starts at false and can become true (but not false again).  This member would be set to true,</span></div>
-<div class="line"><a id="l05226" name="l05226"></a><span class="lineno"> 5226</span><span class="comment">   * by thread W, if and only if one of the above situations is detected by thread W.  Then here</span></div>
-<div class="line"><a id="l05227" name="l05227"></a><span class="lineno"> 5227</span><span class="comment">   * we&#39;d check it, and if it&#39;s true, return error; otherwise return success.</span></div>
-<div class="line"><a id="l05228" name="l05228"></a><span class="lineno"> 5228</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05229" name="l05229"></a><span class="lineno"> 5229</span><span class="comment">   * IMPORTANT: The logic here must be consistent with sock_is_readable(). */</span></div>
-<div class="line"><a id="l05230" name="l05230"></a><span class="lineno"> 5230</span>  <span class="keywordflow">return</span> 0;</div>
-<div class="line"><a id="l05231" name="l05231"></a><span class="lineno"> 5231</span>} <span class="comment">// Node::receive()</span></div>
-<div class="line"><a id="l05232" name="l05232"></a><span class="lineno"> 5232</span> </div>
-<div class="line"><a id="l05233" name="l05233"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#aa44feae2c97b4bc1fe1f14f83e932d84"> 5233</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa44feae2c97b4bc1fe1f14f83e932d84">Node::sock_is_readable</a>(<span class="keyword">const</span> boost::any&amp; sock_as_any)<span class="keyword"> const</span></div>
-<div class="line"><a id="l05234" name="l05234"></a><span class="lineno"> 5234</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l05235" name="l05235"></a><span class="lineno"> 5235</span>  <span class="keyword">using </span>boost::any_cast;</div>
-<div class="line"><a id="l05236" name="l05236"></a><span class="lineno"> 5236</span> </div>
-<div class="line"><a id="l05237" name="l05237"></a><span class="lineno"> 5237</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock = any_cast&lt;Peer_socket::Ptr&gt;(sock_as_any);</div>
+<div class="line"><a id="l05198" name="l05198"></a><span class="lineno"> 5198</span>  <span class="comment">// This is case -1a-.</span></div>
+<div class="line"><a id="l05199" name="l05199"></a><span class="lineno"> 5199</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;User thread receive() for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l05200" name="l05200"></a><span class="lineno"> 5200</span>                 <span class="stringliteral">&quot;returning no data because Receive buffer empty.&quot;</span>);</div>
+<div class="line"><a id="l05201" name="l05201"></a><span class="lineno"> 5201</span> </div>
+<div class="line"><a id="l05202" name="l05202"></a><span class="lineno"> 5202</span>  err_code-&gt;clear();</div>
+<div class="line"><a id="l05203" name="l05203"></a><span class="lineno"> 5203</span> </div>
+<div class="line"><a id="l05204" name="l05204"></a><span class="lineno"> 5204</span>  <span class="comment">/* @todo Sigh.  There&#39;s more.  Yes, in some situations we can return 0/success here.  In other</span></div>
+<div class="line"><a id="l05205" name="l05205"></a><span class="lineno"> 5205</span><span class="comment">   * situations, though, we should return 0/&lt;Error_code for graceful close&gt; here.  The latter</span></div>
+<div class="line"><a id="l05206" name="l05206"></a><span class="lineno"> 5206</span><span class="comment">   * case would be in the situations where we know no data is coming, or user has said he doesn&#39;t</span></div>
+<div class="line"><a id="l05207" name="l05207"></a><span class="lineno"> 5207</span><span class="comment">   * care about any more data:</span></div>
+<div class="line"><a id="l05208" name="l05208"></a><span class="lineno"> 5208</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05209" name="l05209"></a><span class="lineno"> 5209</span><span class="comment">   *   -1- A graceful close was initiated by the OTHER side.  (Therefore no data could be coming to</span></div>
+<div class="line"><a id="l05210" name="l05210"></a><span class="lineno"> 5210</span><span class="comment">   *       save into Receive buffer.)</span></div>
+<div class="line"><a id="l05211" name="l05211"></a><span class="lineno"> 5211</span><span class="comment">   *   -2- Only we initiated the graceful close, but it was via close_final(), i.e., user is not</span></div>
+<div class="line"><a id="l05212" name="l05212"></a><span class="lineno"> 5212</span><span class="comment">   *       interested in any incoming data anymore.  (Therefore we&#39;ll always just ignore any</span></div>
+<div class="line"><a id="l05213" name="l05213"></a><span class="lineno"> 5213</span><span class="comment">   *       incoming DATA and not put it into Receive buffer.)</span></div>
+<div class="line"><a id="l05214" name="l05214"></a><span class="lineno"> 5214</span><span class="comment">   *   -3- Only we initiated the graceful close, and it was via close_start() (i.e., user cares</span></div>
+<div class="line"><a id="l05215" name="l05215"></a><span class="lineno"> 5215</span><span class="comment">   *       about further incoming data); however, the final handshake has reached a state in which</span></div>
+<div class="line"><a id="l05216" name="l05216"></a><span class="lineno"> 5216</span><span class="comment">   *       further data cannot be incoming.  (Therefore no data could be coming to save into Receive</span></div>
+<div class="line"><a id="l05217" name="l05217"></a><span class="lineno"> 5217</span><span class="comment">   *       buffer.)</span></div>
+<div class="line"><a id="l05218" name="l05218"></a><span class="lineno"> 5218</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05219" name="l05219"></a><span class="lineno"> 5219</span><span class="comment">   * I am not writing code for this logic at this time.  The implementations depends on how</span></div>
+<div class="line"><a id="l05220" name="l05220"></a><span class="lineno"> 5220</span><span class="comment">   * exactly our graceful close works.  This entire method, right now, is dead code, since there is</span></div>
+<div class="line"><a id="l05221" name="l05221"></a><span class="lineno"> 5221</span><span class="comment">   * no graceful close, but I wrote it anyway to provide a skeleton for the future, since I</span></div>
+<div class="line"><a id="l05222" name="l05222"></a><span class="lineno"> 5222</span><span class="comment">   * already thought about it.  However it would be unreasonable to implement the above logic in the</span></div>
+<div class="line"><a id="l05223" name="l05223"></a><span class="lineno"> 5223</span><span class="comment">   * absence of graceful close in the first place, skeleton or not.  Therefore, dead code or not, I</span></div>
+<div class="line"><a id="l05224" name="l05224"></a><span class="lineno"> 5224</span><span class="comment">   * do the &quot;conservative&quot; thing: return 0/success even in the above situations.  Eventually the</span></div>
+<div class="line"><a id="l05225" name="l05225"></a><span class="lineno"> 5225</span><span class="comment">   * graceful close will complete, at which point we&#39;ll return an error anyway, so the user won&#39;t be</span></div>
+<div class="line"><a id="l05226" name="l05226"></a><span class="lineno"> 5226</span><span class="comment">   * left uninformed forever (worst case: the close will time out).</span></div>
+<div class="line"><a id="l05227" name="l05227"></a><span class="lineno"> 5227</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05228" name="l05228"></a><span class="lineno"> 5228</span><span class="comment">   * For when we do implement the above logic, some thoughts: Detecting the situation in thread U</span></div>
+<div class="line"><a id="l05229" name="l05229"></a><span class="lineno"> 5229</span><span class="comment">   * != W may be difficult and may introduce complex synchronization issues.  One way</span></div>
+<div class="line"><a id="l05230" name="l05230"></a><span class="lineno"> 5230</span><span class="comment">   * to do it might be to introduce synchronized bool Peer_socket::m_no_more_rcv_data, which</span></div>
+<div class="line"><a id="l05231" name="l05231"></a><span class="lineno"> 5231</span><span class="comment">   * starts at false and can become true (but not false again).  This member would be set to true,</span></div>
+<div class="line"><a id="l05232" name="l05232"></a><span class="lineno"> 5232</span><span class="comment">   * by thread W, if and only if one of the above situations is detected by thread W.  Then here</span></div>
+<div class="line"><a id="l05233" name="l05233"></a><span class="lineno"> 5233</span><span class="comment">   * we&#39;d check it, and if it&#39;s true, return error; otherwise return success.</span></div>
+<div class="line"><a id="l05234" name="l05234"></a><span class="lineno"> 5234</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05235" name="l05235"></a><span class="lineno"> 5235</span><span class="comment">   * IMPORTANT: The logic here must be consistent with sock_is_readable(). */</span></div>
+<div class="line"><a id="l05236" name="l05236"></a><span class="lineno"> 5236</span>  <span class="keywordflow">return</span> 0;</div>
+<div class="line"><a id="l05237" name="l05237"></a><span class="lineno"> 5237</span>} <span class="comment">// Node::receive()</span></div>
 <div class="line"><a id="l05238" name="l05238"></a><span class="lineno"> 5238</span> </div>
-<div class="line"><a id="l05239" name="l05239"></a><span class="lineno"> 5239</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex); <span class="comment">// Many threads can access/write below state.</span></div>
-<div class="line"><a id="l05240" name="l05240"></a><span class="lineno"> 5240</span> </div>
-<div class="line"><a id="l05241" name="l05241"></a><span class="lineno"> 5241</span>  <span class="comment">/* Our task here is to return true if and only if at this very moment calling sock-&gt;receive(),</span></div>
-<div class="line"><a id="l05242" name="l05242"></a><span class="lineno"> 5242</span><span class="comment">   * assuming sufficient user buffer space, would yield either a return value of &gt; 0 OR a</span></div>
-<div class="line"><a id="l05243" name="l05243"></a><span class="lineno"> 5243</span><span class="comment">   * non-success *err_code.  In other words, receive() would return &quot;something.&quot;  This is used for</span></div>
-<div class="line"><a id="l05244" name="l05244"></a><span class="lineno"> 5244</span><span class="comment">   * Event_set machinery.</span></div>
-<div class="line"><a id="l05245" name="l05245"></a><span class="lineno"> 5245</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05246" name="l05246"></a><span class="lineno"> 5246</span><span class="comment">   * This should mirror receive()&#39;s algorithm.  @todo Should receive() call this, for code reuse?</span></div>
-<div class="line"><a id="l05247" name="l05247"></a><span class="lineno"> 5247</span><span class="comment">   * Maybe/maybe not.  Consider performance when deciding.</span></div>
-<div class="line"><a id="l05248" name="l05248"></a><span class="lineno"> 5248</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05249" name="l05249"></a><span class="lineno"> 5249</span><span class="comment">   * - If state is CLOSED, then some sort of error/terminating condition occurred, so receive()</span></div>
-<div class="line"><a id="l05250" name="l05250"></a><span class="lineno"> 5250</span><span class="comment">   *   would return 0 and non-success Error_code == sock-&gt;m_disconnect_cause.  (Readable.)</span></div>
-<div class="line"><a id="l05251" name="l05251"></a><span class="lineno"> 5251</span><span class="comment">   * - Otherwise, if Receive buffer can be dequeued, receive() would return &gt; 0.</span></div>
-<div class="line"><a id="l05252" name="l05252"></a><span class="lineno"> 5252</span><span class="comment">   * - Otherwise, if Receive buffer cannot be dequeued, receive() would return 0 and no error. (Not</span></div>
-<div class="line"><a id="l05253" name="l05253"></a><span class="lineno"> 5253</span><span class="comment">   *   Readable.)  Note that Receive buffer is guaranteed to be clear when entering non-Readable</span></div>
-<div class="line"><a id="l05254" name="l05254"></a><span class="lineno"> 5254</span><span class="comment">   *   non-error states (OPEN+CONNECTING, OPEN+DISCONNECTING).  (Readable.)</span></div>
-<div class="line"><a id="l05255" name="l05255"></a><span class="lineno"> 5255</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05256" name="l05256"></a><span class="lineno"> 5256</span><span class="comment">   * @todo Once we implement graceful close, there will be situations where Receive buffer is empty, state is</span></div>
-<div class="line"><a id="l05257" name="l05257"></a><span class="lineno"> 5257</span><span class="comment">   * OPEN+DISCONNECTING, m_disconnect_cause = &lt;cause of disconnect&gt;, and we should return true (Readable)</span></div>
-<div class="line"><a id="l05258" name="l05258"></a><span class="lineno"> 5258</span><span class="comment">   * here (only when we also know that no future Receive traffic possible).  See receive(). */</span></div>
-<div class="line"><a id="l05259" name="l05259"></a><span class="lineno"> 5259</span> </div>
-<div class="line"><a id="l05260" name="l05260"></a><span class="lineno"> 5260</span>  <span class="keywordflow">return</span> (sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>) || <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a8cae2884eaf67d77c9f8cf56b31e4c4b">rcv_buf_deqable</a>(sock);</div>
-<div class="line"><a id="l05261" name="l05261"></a><span class="lineno"> 5261</span>} <span class="comment">// Node::sock_is_readable()</span></div>
-<div class="line"><a id="l05262" name="l05262"></a><span class="lineno"> 5262</span> </div>
-<div class="line"><a id="l05263" name="l05263"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a08cf95363b26c0c676979437e34db357"> 5263</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a08cf95363b26c0c676979437e34db357">Node::receive_wnd_updated</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
-<div class="line"><a id="l05264" name="l05264"></a><span class="lineno"> 5264</span>{</div>
-<div class="line"><a id="l05265" name="l05265"></a><span class="lineno"> 5265</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l05266" name="l05266"></a><span class="lineno"> 5266</span> </div>
-<div class="line"><a id="l05267" name="l05267"></a><span class="lineno"> 5267</span>  <span class="comment">/* rcv_wnd (free Receive buffer space) is sent to other side opportunistically in ACKs.  While</span></div>
-<div class="line"><a id="l05268" name="l05268"></a><span class="lineno"> 5268</span><span class="comment">   * sender is sending data, they will have a good idea of our rcv_wnd as well.  Is that (in a</span></div>
-<div class="line"><a id="l05269" name="l05269"></a><span class="lineno"> 5269</span><span class="comment">   * one-way-traffic situation) sufficient however?  If the sender is not sending data, because the</span></div>
-<div class="line"><a id="l05270" name="l05270"></a><span class="lineno"> 5270</span><span class="comment">   * application on the sender doesn&#39;t provide more data to send, then the discussion is moot.</span></div>
-<div class="line"><a id="l05271" name="l05271"></a><span class="lineno"> 5271</span><span class="comment">   * What if the sender is not sending data, because we have told it rcv_wnd is 0 (meaning our</span></div>
-<div class="line"><a id="l05272" name="l05272"></a><span class="lineno"> 5272</span><span class="comment">   * Receive buffer is full)?  This can and will happen.  For example suppose our application layer</span></div>
-<div class="line"><a id="l05273" name="l05273"></a><span class="lineno"> 5273</span><span class="comment">   * simply stops reading from Receive buffer for a while, resulting in rcv_wnd 0 sent in one of the</span></div>
-<div class="line"><a id="l05274" name="l05274"></a><span class="lineno"> 5274</span><span class="comment">   * ACKs.  Now sender knows rcv_wnd is 0.  Now suppose our application reads off the entire Receive</span></div>
-<div class="line"><a id="l05275" name="l05275"></a><span class="lineno"> 5275</span><span class="comment">   * buffer.  rcv_wnd is now 100%, but since sender is not sending (because it thinks rcv_wnd is</span></div>
-<div class="line"><a id="l05276" name="l05276"></a><span class="lineno"> 5276</span><span class="comment">   * still 0), there will be no ACKs onto which to add rcv_wnd.  Thus the traffic completely stops.</span></div>
-<div class="line"><a id="l05277" name="l05277"></a><span class="lineno"> 5277</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05278" name="l05278"></a><span class="lineno"> 5278</span><span class="comment">   * Original RFC 793 (as well as RFC 1122) suggests TCP sender should deal with this by &quot;probing&quot;</span></div>
-<div class="line"><a id="l05279" name="l05279"></a><span class="lineno"> 5279</span><span class="comment">   * with 1-byte (I think) data segments sent regularly (every RTO; our DTO) in order to trigger</span></div>
-<div class="line"><a id="l05280" name="l05280"></a><span class="lineno"> 5280</span><span class="comment">   * ACKs, which would eventually expose the non-zero rcv_wnd.  To me this seems to have the</span></div>
-<div class="line"><a id="l05281" name="l05281"></a><span class="lineno"> 5281</span><span class="comment">   * disadvantage of complexity and implications on how we packetize data (especially since in</span></div>
-<div class="line"><a id="l05282" name="l05282"></a><span class="lineno"> 5282</span><span class="comment">   * unreliable mode we&#39;re not supposed to break up contiguous blocks of max-block-size bytes).</span></div>
-<div class="line"><a id="l05283" name="l05283"></a><span class="lineno"> 5283</span><span class="comment">   * Also it is not as responsive as it could be.  Consider that the most common scenario in</span></div>
-<div class="line"><a id="l05284" name="l05284"></a><span class="lineno"> 5284</span><span class="comment">   * high-speed downloads is that the Receive buffer is exceeded only momentarily (due to thread</span></div>
-<div class="line"><a id="l05285" name="l05285"></a><span class="lineno"> 5285</span><span class="comment">   * contention on receiver or something) but is then quickly emptied (once the thread contention is</span></div>
-<div class="line"><a id="l05286" name="l05286"></a><span class="lineno"> 5286</span><span class="comment">   * resolved).  In case that happens in a fraction of a second, having the probe occur a DTO later</span></div>
-<div class="line"><a id="l05287" name="l05287"></a><span class="lineno"> 5287</span><span class="comment">   * wastes a long time.  Instead the RECEIVER could take initiative and send an empty ACK with a</span></div>
-<div class="line"><a id="l05288" name="l05288"></a><span class="lineno"> 5288</span><span class="comment">   * rcv_wnd update.  When should it do this?  A naive answer would be to do it simply EVERY time</span></div>
-<div class="line"><a id="l05289" name="l05289"></a><span class="lineno"> 5289</span><span class="comment">   * free Receive buffer space increases.  However that&#39;d be terrible, as in a typical scenario</span></div>
-<div class="line"><a id="l05290" name="l05290"></a><span class="lineno"> 5290</span><span class="comment">   * (where lots of bytes arrive, while user reads off lots of bytes due to them becoming available</span></div>
-<div class="line"><a id="l05291" name="l05291"></a><span class="lineno"> 5291</span><span class="comment">   * to read) it would explode the number of ACKs.  Even in the &quot;sender has stopped due to</span></div>
-<div class="line"><a id="l05292" name="l05292"></a><span class="lineno"> 5292</span><span class="comment">   * rcv_wnd=0&quot; situation, this would result in a ton of ACKs.  Plus it would cause sender to start</span></div>
-<div class="line"><a id="l05293" name="l05293"></a><span class="lineno"> 5293</span><span class="comment">   * recovering with quite small windows which is inefficient.  So the less naive way is to send the</span></div>
-<div class="line"><a id="l05294" name="l05294"></a><span class="lineno"> 5294</span><span class="comment">   * ACK of our volition if free buffer space has increased by some % of its max capacity (like</span></div>
-<div class="line"><a id="l05295" name="l05295"></a><span class="lineno"> 5295</span><span class="comment">   * 50%).</span></div>
-<div class="line"><a id="l05296" name="l05296"></a><span class="lineno"> 5296</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05297" name="l05297"></a><span class="lineno"> 5297</span><span class="comment">   * This would certainly solve aforementioned situation where Receive buffer fills up momentarily</span></div>
-<div class="line"><a id="l05298" name="l05298"></a><span class="lineno"> 5298</span><span class="comment">   * but then is quickly cleared.  A fraction of a second later, the free space will have increased</span></div>
-<div class="line"><a id="l05299" name="l05299"></a><span class="lineno"> 5299</span><span class="comment">   * by over 50%, an ACK would go to sender, and sender would work with a nice large rcv_wnd.</span></div>
-<div class="line"><a id="l05300" name="l05300"></a><span class="lineno"> 5300</span><span class="comment">   * However, if the Receiver only reads off 49% of the data and then stops, traffic would remain</span></div>
-<div class="line"><a id="l05301" name="l05301"></a><span class="lineno"> 5301</span><span class="comment">   * stuck (even though 49% of the buffer is available).  This is where the sender-side probing</span></div>
-<div class="line"><a id="l05302" name="l05302"></a><span class="lineno"> 5302</span><span class="comment">   * would solve it (slowly); though sender-side unsolicited ACKing on a timer would also do.  I</span></div>
-<div class="line"><a id="l05303" name="l05303"></a><span class="lineno"> 5303</span><span class="comment">   * leave that as a @todo; probably important in a widely-used net_flow; but without it it should be</span></div>
-<div class="line"><a id="l05304" name="l05304"></a><span class="lineno"> 5304</span><span class="comment">   * sufficient for the initial intended purpose of net_flow.  In that use scenario, we count on the</span></div>
-<div class="line"><a id="l05305" name="l05305"></a><span class="lineno"> 5305</span><span class="comment">   * receiver code to be well behaved and read from Receive buffer as soon as the computer lets it.</span></div>
-<div class="line"><a id="l05306" name="l05306"></a><span class="lineno"> 5306</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05307" name="l05307"></a><span class="lineno"> 5307</span><span class="comment">   * With that settled, there is one more concern.  This is intuitively clear but is also mentioned</span></div>
-<div class="line"><a id="l05308" name="l05308"></a><span class="lineno"> 5308</span><span class="comment">   * in RFC 1122-4.2.2.17.  Suppose the receiver-initiated ACK after 50% of buffer is cleared is</span></div>
-<div class="line"><a id="l05309" name="l05309"></a><span class="lineno"> 5309</span><span class="comment">   * dropped by the network.  ACKs are not reliable (there are no ACKs of ACKs), so then we&#39;re back</span></div>
-<div class="line"><a id="l05310" name="l05310"></a><span class="lineno"> 5310</span><span class="comment">   * in no-more-traffic-forever land.  To solve this, I implement this scheme: Having sent that ACK,</span></div>
-<div class="line"><a id="l05311" name="l05311"></a><span class="lineno"> 5311</span><span class="comment">   * start a timer and then send it again periodically, until some long time period (something like</span></div>
-<div class="line"><a id="l05312" name="l05312"></a><span class="lineno"> 5312</span><span class="comment">   * a minute) expires (just in case) OR we get a new DATA packet from the sender.  In the latter</span></div>
-<div class="line"><a id="l05313" name="l05313"></a><span class="lineno"> 5313</span><span class="comment">   * case we&#39;re back in business, as it implies sender got our window update.  Note that this</span></div>
-<div class="line"><a id="l05314" name="l05314"></a><span class="lineno"> 5314</span><span class="comment">   * mechanism is not necessary any longer, once we implement sender-side probing as explained</span></div>
-<div class="line"><a id="l05315" name="l05315"></a><span class="lineno"> 5315</span><span class="comment">   * above. */</span></div>
-<div class="line"><a id="l05316" name="l05316"></a><span class="lineno"> 5316</span> </div>
-<div class="line"><a id="l05317" name="l05317"></a><span class="lineno"> 5317</span>  <span class="comment">// As always, no need to lock m_state, etc., unless we plan to alter them, since no other thread can alter them.</span></div>
-<div class="line"><a id="l05318" name="l05318"></a><span class="lineno"> 5318</span> </div>
-<div class="line"><a id="l05319" name="l05319"></a><span class="lineno"> 5319</span>  <span class="keywordflow">if</span> (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>)</div>
-<div class="line"><a id="l05320" name="l05320"></a><span class="lineno"> 5320</span>  {</div>
-<div class="line"><a id="l05321" name="l05321"></a><span class="lineno"> 5321</span>    <span class="comment">/* Yes, they emptied Receive buffer.  However, we haven&#39;t finished the graceful close.</span></div>
-<div class="line"><a id="l05322" name="l05322"></a><span class="lineno"> 5322</span><span class="comment">     * Therefore -- even though one more barrier to reaching m_state == S_CLOSED has been removed --</span></div>
-<div class="line"><a id="l05323" name="l05323"></a><span class="lineno"> 5323</span><span class="comment">     * there&#39;s nothing further to do at this time.  In fact, in certain situations we might even</span></div>
-<div class="line"><a id="l05324" name="l05324"></a><span class="lineno"> 5324</span><span class="comment">     * get more data onto the Receive buffer!  @todo No graceful close yet. */</span></div>
-<div class="line"><a id="l05325" name="l05325"></a><span class="lineno"> 5325</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] Receive buffer space freed, &quot;</span></div>
-<div class="line"><a id="l05326" name="l05326"></a><span class="lineno"> 5326</span>                  <span class="stringliteral">&quot;but state is now [&quot;</span> &lt;&lt; sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;]; ignoring.&quot;</span>);</div>
-<div class="line"><a id="l05327" name="l05327"></a><span class="lineno"> 5327</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05328" name="l05328"></a><span class="lineno"> 5328</span>  }</div>
-<div class="line"><a id="l05329" name="l05329"></a><span class="lineno"> 5329</span>  <span class="comment">// else if (m_int_state == S_ESTABLISHED)</span></div>
-<div class="line"><a id="l05330" name="l05330"></a><span class="lineno"> 5330</span> </div>
-<div class="line"><a id="l05331" name="l05331"></a><span class="lineno"> 5331</span>  <span class="keywordflow">if</span> (sock-&gt;m_rcv_in_rcv_wnd_recovery)</div>
-<div class="line"><a id="l05332" name="l05332"></a><span class="lineno"> 5332</span>  {</div>
-<div class="line"><a id="l05333" name="l05333"></a><span class="lineno"> 5333</span>    <span class="comment">/* We have already sent the unsolicited ACK and are currently in the phase where we&#39;re</span></div>
-<div class="line"><a id="l05334" name="l05334"></a><span class="lineno"> 5334</span><span class="comment">     * periodically sending more, until we get some DATA from sender or a long period of time</span></div>
-<div class="line"><a id="l05335" name="l05335"></a><span class="lineno"> 5335</span><span class="comment">     * passes.  Even if we&#39;ve freed yet another large chunk of the buffer since the last ACK, do</span></div>
-<div class="line"><a id="l05336" name="l05336"></a><span class="lineno"> 5336</span><span class="comment">     * not start again... just let it continue. */</span></div>
-<div class="line"><a id="l05337" name="l05337"></a><span class="lineno"> 5337</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] Receive buffer space freed, but &quot;</span></div>
-<div class="line"><a id="l05338" name="l05338"></a><span class="lineno"> 5338</span>                   <span class="stringliteral">&quot;we are already in rcv_wnd recovery mode.  Nothing to do.&quot;</span>);</div>
-<div class="line"><a id="l05339" name="l05339"></a><span class="lineno"> 5339</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05340" name="l05340"></a><span class="lineno"> 5340</span>  }</div>
-<div class="line"><a id="l05341" name="l05341"></a><span class="lineno"> 5341</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l05342" name="l05342"></a><span class="lineno"> 5342</span> </div>
-<div class="line"><a id="l05343" name="l05343"></a><span class="lineno"> 5343</span>  <span class="comment">// Grab available Receive buffer space.</span></div>
-<div class="line"><a id="l05344" name="l05344"></a><span class="lineno"> 5344</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> rcv_wnd = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">sock_rcv_wnd</a>(sock);</div>
-<div class="line"><a id="l05345" name="l05345"></a><span class="lineno"> 5345</span>  <span class="comment">// @todo That was a ~copy/paste of Node::async_low_lvl_ack_send().  Add code reuse.</span></div>
-<div class="line"><a id="l05346" name="l05346"></a><span class="lineno"> 5346</span> </div>
-<div class="line"><a id="l05347" name="l05347"></a><span class="lineno"> 5347</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span>&amp; last_rcv_wnd = sock-&gt;m_rcv_last_sent_rcv_wnd;</div>
+<div class="line"><a id="l05239" name="l05239"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#aa44feae2c97b4bc1fe1f14f83e932d84"> 5239</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa44feae2c97b4bc1fe1f14f83e932d84">Node::sock_is_readable</a>(<span class="keyword">const</span> boost::any&amp; sock_as_any)<span class="keyword"> const</span></div>
+<div class="line"><a id="l05240" name="l05240"></a><span class="lineno"> 5240</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l05241" name="l05241"></a><span class="lineno"> 5241</span>  <span class="keyword">using </span>boost::any_cast;</div>
+<div class="line"><a id="l05242" name="l05242"></a><span class="lineno"> 5242</span> </div>
+<div class="line"><a id="l05243" name="l05243"></a><span class="lineno"> 5243</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock = any_cast&lt;Peer_socket::Ptr&gt;(sock_as_any);</div>
+<div class="line"><a id="l05244" name="l05244"></a><span class="lineno"> 5244</span> </div>
+<div class="line"><a id="l05245" name="l05245"></a><span class="lineno"> 5245</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex); <span class="comment">// Many threads can access/write below state.</span></div>
+<div class="line"><a id="l05246" name="l05246"></a><span class="lineno"> 5246</span> </div>
+<div class="line"><a id="l05247" name="l05247"></a><span class="lineno"> 5247</span>  <span class="comment">/* Our task here is to return true if and only if at this very moment calling sock-&gt;receive(),</span></div>
+<div class="line"><a id="l05248" name="l05248"></a><span class="lineno"> 5248</span><span class="comment">   * assuming sufficient user buffer space, would yield either a return value of &gt; 0 OR a</span></div>
+<div class="line"><a id="l05249" name="l05249"></a><span class="lineno"> 5249</span><span class="comment">   * non-success *err_code.  In other words, receive() would return &quot;something.&quot;  This is used for</span></div>
+<div class="line"><a id="l05250" name="l05250"></a><span class="lineno"> 5250</span><span class="comment">   * Event_set machinery.</span></div>
+<div class="line"><a id="l05251" name="l05251"></a><span class="lineno"> 5251</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05252" name="l05252"></a><span class="lineno"> 5252</span><span class="comment">   * This should mirror receive()&#39;s algorithm.  @todo Should receive() call this, for code reuse?</span></div>
+<div class="line"><a id="l05253" name="l05253"></a><span class="lineno"> 5253</span><span class="comment">   * Maybe/maybe not.  Consider performance when deciding.</span></div>
+<div class="line"><a id="l05254" name="l05254"></a><span class="lineno"> 5254</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05255" name="l05255"></a><span class="lineno"> 5255</span><span class="comment">   * - If state is CLOSED, then some sort of error/terminating condition occurred, so receive()</span></div>
+<div class="line"><a id="l05256" name="l05256"></a><span class="lineno"> 5256</span><span class="comment">   *   would return 0 and non-success Error_code == sock-&gt;m_disconnect_cause.  (Readable.)</span></div>
+<div class="line"><a id="l05257" name="l05257"></a><span class="lineno"> 5257</span><span class="comment">   * - Otherwise, if Receive buffer can be dequeued, receive() would return &gt; 0.</span></div>
+<div class="line"><a id="l05258" name="l05258"></a><span class="lineno"> 5258</span><span class="comment">   * - Otherwise, if Receive buffer cannot be dequeued, receive() would return 0 and no error. (Not</span></div>
+<div class="line"><a id="l05259" name="l05259"></a><span class="lineno"> 5259</span><span class="comment">   *   Readable.)  Note that Receive buffer is guaranteed to be clear when entering non-Readable</span></div>
+<div class="line"><a id="l05260" name="l05260"></a><span class="lineno"> 5260</span><span class="comment">   *   non-error states (OPEN+CONNECTING, OPEN+DISCONNECTING).  (Readable.)</span></div>
+<div class="line"><a id="l05261" name="l05261"></a><span class="lineno"> 5261</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05262" name="l05262"></a><span class="lineno"> 5262</span><span class="comment">   * @todo Once we implement graceful close, there will be situations where Receive buffer is empty, state is</span></div>
+<div class="line"><a id="l05263" name="l05263"></a><span class="lineno"> 5263</span><span class="comment">   * OPEN+DISCONNECTING, m_disconnect_cause = &lt;cause of disconnect&gt;, and we should return true (Readable)</span></div>
+<div class="line"><a id="l05264" name="l05264"></a><span class="lineno"> 5264</span><span class="comment">   * here (only when we also know that no future Receive traffic possible).  See receive(). */</span></div>
+<div class="line"><a id="l05265" name="l05265"></a><span class="lineno"> 5265</span> </div>
+<div class="line"><a id="l05266" name="l05266"></a><span class="lineno"> 5266</span>  <span class="keywordflow">return</span> (sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>) || <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a8cae2884eaf67d77c9f8cf56b31e4c4b">rcv_buf_deqable</a>(sock);</div>
+<div class="line"><a id="l05267" name="l05267"></a><span class="lineno"> 5267</span>} <span class="comment">// Node::sock_is_readable()</span></div>
+<div class="line"><a id="l05268" name="l05268"></a><span class="lineno"> 5268</span> </div>
+<div class="line"><a id="l05269" name="l05269"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a08cf95363b26c0c676979437e34db357"> 5269</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a08cf95363b26c0c676979437e34db357">Node::receive_wnd_updated</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
+<div class="line"><a id="l05270" name="l05270"></a><span class="lineno"> 5270</span>{</div>
+<div class="line"><a id="l05271" name="l05271"></a><span class="lineno"> 5271</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l05272" name="l05272"></a><span class="lineno"> 5272</span> </div>
+<div class="line"><a id="l05273" name="l05273"></a><span class="lineno"> 5273</span>  <span class="comment">/* rcv_wnd (free Receive buffer space) is sent to other side opportunistically in ACKs.  While</span></div>
+<div class="line"><a id="l05274" name="l05274"></a><span class="lineno"> 5274</span><span class="comment">   * sender is sending data, they will have a good idea of our rcv_wnd as well.  Is that (in a</span></div>
+<div class="line"><a id="l05275" name="l05275"></a><span class="lineno"> 5275</span><span class="comment">   * one-way-traffic situation) sufficient however?  If the sender is not sending data, because the</span></div>
+<div class="line"><a id="l05276" name="l05276"></a><span class="lineno"> 5276</span><span class="comment">   * application on the sender doesn&#39;t provide more data to send, then the discussion is moot.</span></div>
+<div class="line"><a id="l05277" name="l05277"></a><span class="lineno"> 5277</span><span class="comment">   * What if the sender is not sending data, because we have told it rcv_wnd is 0 (meaning our</span></div>
+<div class="line"><a id="l05278" name="l05278"></a><span class="lineno"> 5278</span><span class="comment">   * Receive buffer is full)?  This can and will happen.  For example suppose our application layer</span></div>
+<div class="line"><a id="l05279" name="l05279"></a><span class="lineno"> 5279</span><span class="comment">   * simply stops reading from Receive buffer for a while, resulting in rcv_wnd 0 sent in one of the</span></div>
+<div class="line"><a id="l05280" name="l05280"></a><span class="lineno"> 5280</span><span class="comment">   * ACKs.  Now sender knows rcv_wnd is 0.  Now suppose our application reads off the entire Receive</span></div>
+<div class="line"><a id="l05281" name="l05281"></a><span class="lineno"> 5281</span><span class="comment">   * buffer.  rcv_wnd is now 100%, but since sender is not sending (because it thinks rcv_wnd is</span></div>
+<div class="line"><a id="l05282" name="l05282"></a><span class="lineno"> 5282</span><span class="comment">   * still 0), there will be no ACKs onto which to add rcv_wnd.  Thus the traffic completely stops.</span></div>
+<div class="line"><a id="l05283" name="l05283"></a><span class="lineno"> 5283</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05284" name="l05284"></a><span class="lineno"> 5284</span><span class="comment">   * Original RFC 793 (as well as RFC 1122) suggests TCP sender should deal with this by &quot;probing&quot;</span></div>
+<div class="line"><a id="l05285" name="l05285"></a><span class="lineno"> 5285</span><span class="comment">   * with 1-byte (I think) data segments sent regularly (every RTO; our DTO) in order to trigger</span></div>
+<div class="line"><a id="l05286" name="l05286"></a><span class="lineno"> 5286</span><span class="comment">   * ACKs, which would eventually expose the non-zero rcv_wnd.  To me this seems to have the</span></div>
+<div class="line"><a id="l05287" name="l05287"></a><span class="lineno"> 5287</span><span class="comment">   * disadvantage of complexity and implications on how we packetize data (especially since in</span></div>
+<div class="line"><a id="l05288" name="l05288"></a><span class="lineno"> 5288</span><span class="comment">   * unreliable mode we&#39;re not supposed to break up contiguous blocks of max-block-size bytes).</span></div>
+<div class="line"><a id="l05289" name="l05289"></a><span class="lineno"> 5289</span><span class="comment">   * Also it is not as responsive as it could be.  Consider that the most common scenario in</span></div>
+<div class="line"><a id="l05290" name="l05290"></a><span class="lineno"> 5290</span><span class="comment">   * high-speed downloads is that the Receive buffer is exceeded only momentarily (due to thread</span></div>
+<div class="line"><a id="l05291" name="l05291"></a><span class="lineno"> 5291</span><span class="comment">   * contention on receiver or something) but is then quickly emptied (once the thread contention is</span></div>
+<div class="line"><a id="l05292" name="l05292"></a><span class="lineno"> 5292</span><span class="comment">   * resolved).  In case that happens in a fraction of a second, having the probe occur a DTO later</span></div>
+<div class="line"><a id="l05293" name="l05293"></a><span class="lineno"> 5293</span><span class="comment">   * wastes a long time.  Instead the RECEIVER could take initiative and send an empty ACK with a</span></div>
+<div class="line"><a id="l05294" name="l05294"></a><span class="lineno"> 5294</span><span class="comment">   * rcv_wnd update.  When should it do this?  A naive answer would be to do it simply EVERY time</span></div>
+<div class="line"><a id="l05295" name="l05295"></a><span class="lineno"> 5295</span><span class="comment">   * free Receive buffer space increases.  However that&#39;d be terrible, as in a typical scenario</span></div>
+<div class="line"><a id="l05296" name="l05296"></a><span class="lineno"> 5296</span><span class="comment">   * (where lots of bytes arrive, while user reads off lots of bytes due to them becoming available</span></div>
+<div class="line"><a id="l05297" name="l05297"></a><span class="lineno"> 5297</span><span class="comment">   * to read) it would explode the number of ACKs.  Even in the &quot;sender has stopped due to</span></div>
+<div class="line"><a id="l05298" name="l05298"></a><span class="lineno"> 5298</span><span class="comment">   * rcv_wnd=0&quot; situation, this would result in a ton of ACKs.  Plus it would cause sender to start</span></div>
+<div class="line"><a id="l05299" name="l05299"></a><span class="lineno"> 5299</span><span class="comment">   * recovering with quite small windows which is inefficient.  So the less naive way is to send the</span></div>
+<div class="line"><a id="l05300" name="l05300"></a><span class="lineno"> 5300</span><span class="comment">   * ACK of our volition if free buffer space has increased by some % of its max capacity (like</span></div>
+<div class="line"><a id="l05301" name="l05301"></a><span class="lineno"> 5301</span><span class="comment">   * 50%).</span></div>
+<div class="line"><a id="l05302" name="l05302"></a><span class="lineno"> 5302</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05303" name="l05303"></a><span class="lineno"> 5303</span><span class="comment">   * This would certainly solve aforementioned situation where Receive buffer fills up momentarily</span></div>
+<div class="line"><a id="l05304" name="l05304"></a><span class="lineno"> 5304</span><span class="comment">   * but then is quickly cleared.  A fraction of a second later, the free space will have increased</span></div>
+<div class="line"><a id="l05305" name="l05305"></a><span class="lineno"> 5305</span><span class="comment">   * by over 50%, an ACK would go to sender, and sender would work with a nice large rcv_wnd.</span></div>
+<div class="line"><a id="l05306" name="l05306"></a><span class="lineno"> 5306</span><span class="comment">   * However, if the Receiver only reads off 49% of the data and then stops, traffic would remain</span></div>
+<div class="line"><a id="l05307" name="l05307"></a><span class="lineno"> 5307</span><span class="comment">   * stuck (even though 49% of the buffer is available).  This is where the sender-side probing</span></div>
+<div class="line"><a id="l05308" name="l05308"></a><span class="lineno"> 5308</span><span class="comment">   * would solve it (slowly); though sender-side unsolicited ACKing on a timer would also do.  I</span></div>
+<div class="line"><a id="l05309" name="l05309"></a><span class="lineno"> 5309</span><span class="comment">   * leave that as a @todo; probably important in a widely-used net_flow; but without it it should be</span></div>
+<div class="line"><a id="l05310" name="l05310"></a><span class="lineno"> 5310</span><span class="comment">   * sufficient for the initial intended purpose of net_flow.  In that use scenario, we count on the</span></div>
+<div class="line"><a id="l05311" name="l05311"></a><span class="lineno"> 5311</span><span class="comment">   * receiver code to be well behaved and read from Receive buffer as soon as the computer lets it.</span></div>
+<div class="line"><a id="l05312" name="l05312"></a><span class="lineno"> 5312</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05313" name="l05313"></a><span class="lineno"> 5313</span><span class="comment">   * With that settled, there is one more concern.  This is intuitively clear but is also mentioned</span></div>
+<div class="line"><a id="l05314" name="l05314"></a><span class="lineno"> 5314</span><span class="comment">   * in RFC 1122-4.2.2.17.  Suppose the receiver-initiated ACK after 50% of buffer is cleared is</span></div>
+<div class="line"><a id="l05315" name="l05315"></a><span class="lineno"> 5315</span><span class="comment">   * dropped by the network.  ACKs are not reliable (there are no ACKs of ACKs), so then we&#39;re back</span></div>
+<div class="line"><a id="l05316" name="l05316"></a><span class="lineno"> 5316</span><span class="comment">   * in no-more-traffic-forever land.  To solve this, I implement this scheme: Having sent that ACK,</span></div>
+<div class="line"><a id="l05317" name="l05317"></a><span class="lineno"> 5317</span><span class="comment">   * start a timer and then send it again periodically, until some long time period (something like</span></div>
+<div class="line"><a id="l05318" name="l05318"></a><span class="lineno"> 5318</span><span class="comment">   * a minute) expires (just in case) OR we get a new DATA packet from the sender.  In the latter</span></div>
+<div class="line"><a id="l05319" name="l05319"></a><span class="lineno"> 5319</span><span class="comment">   * case we&#39;re back in business, as it implies sender got our window update.  Note that this</span></div>
+<div class="line"><a id="l05320" name="l05320"></a><span class="lineno"> 5320</span><span class="comment">   * mechanism is not necessary any longer, once we implement sender-side probing as explained</span></div>
+<div class="line"><a id="l05321" name="l05321"></a><span class="lineno"> 5321</span><span class="comment">   * above. */</span></div>
+<div class="line"><a id="l05322" name="l05322"></a><span class="lineno"> 5322</span> </div>
+<div class="line"><a id="l05323" name="l05323"></a><span class="lineno"> 5323</span>  <span class="comment">// As always, no need to lock m_state, etc., unless we plan to alter them, since no other thread can alter them.</span></div>
+<div class="line"><a id="l05324" name="l05324"></a><span class="lineno"> 5324</span> </div>
+<div class="line"><a id="l05325" name="l05325"></a><span class="lineno"> 5325</span>  <span class="keywordflow">if</span> (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>)</div>
+<div class="line"><a id="l05326" name="l05326"></a><span class="lineno"> 5326</span>  {</div>
+<div class="line"><a id="l05327" name="l05327"></a><span class="lineno"> 5327</span>    <span class="comment">/* Yes, they emptied Receive buffer.  However, we haven&#39;t finished the graceful close.</span></div>
+<div class="line"><a id="l05328" name="l05328"></a><span class="lineno"> 5328</span><span class="comment">     * Therefore -- even though one more barrier to reaching m_state == S_CLOSED has been removed --</span></div>
+<div class="line"><a id="l05329" name="l05329"></a><span class="lineno"> 5329</span><span class="comment">     * there&#39;s nothing further to do at this time.  In fact, in certain situations we might even</span></div>
+<div class="line"><a id="l05330" name="l05330"></a><span class="lineno"> 5330</span><span class="comment">     * get more data onto the Receive buffer!  @todo No graceful close yet. */</span></div>
+<div class="line"><a id="l05331" name="l05331"></a><span class="lineno"> 5331</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] Receive buffer space freed, &quot;</span></div>
+<div class="line"><a id="l05332" name="l05332"></a><span class="lineno"> 5332</span>                  <span class="stringliteral">&quot;but state is now [&quot;</span> &lt;&lt; sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;]; ignoring.&quot;</span>);</div>
+<div class="line"><a id="l05333" name="l05333"></a><span class="lineno"> 5333</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05334" name="l05334"></a><span class="lineno"> 5334</span>  }</div>
+<div class="line"><a id="l05335" name="l05335"></a><span class="lineno"> 5335</span>  <span class="comment">// else if (m_int_state == S_ESTABLISHED)</span></div>
+<div class="line"><a id="l05336" name="l05336"></a><span class="lineno"> 5336</span> </div>
+<div class="line"><a id="l05337" name="l05337"></a><span class="lineno"> 5337</span>  <span class="keywordflow">if</span> (sock-&gt;m_rcv_in_rcv_wnd_recovery)</div>
+<div class="line"><a id="l05338" name="l05338"></a><span class="lineno"> 5338</span>  {</div>
+<div class="line"><a id="l05339" name="l05339"></a><span class="lineno"> 5339</span>    <span class="comment">/* We have already sent the unsolicited ACK and are currently in the phase where we&#39;re</span></div>
+<div class="line"><a id="l05340" name="l05340"></a><span class="lineno"> 5340</span><span class="comment">     * periodically sending more, until we get some DATA from sender or a long period of time</span></div>
+<div class="line"><a id="l05341" name="l05341"></a><span class="lineno"> 5341</span><span class="comment">     * passes.  Even if we&#39;ve freed yet another large chunk of the buffer since the last ACK, do</span></div>
+<div class="line"><a id="l05342" name="l05342"></a><span class="lineno"> 5342</span><span class="comment">     * not start again... just let it continue. */</span></div>
+<div class="line"><a id="l05343" name="l05343"></a><span class="lineno"> 5343</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] Receive buffer space freed, but &quot;</span></div>
+<div class="line"><a id="l05344" name="l05344"></a><span class="lineno"> 5344</span>                   <span class="stringliteral">&quot;we are already in rcv_wnd recovery mode.  Nothing to do.&quot;</span>);</div>
+<div class="line"><a id="l05345" name="l05345"></a><span class="lineno"> 5345</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05346" name="l05346"></a><span class="lineno"> 5346</span>  }</div>
+<div class="line"><a id="l05347" name="l05347"></a><span class="lineno"> 5347</span>  <span class="comment">// else</span></div>
 <div class="line"><a id="l05348" name="l05348"></a><span class="lineno"> 5348</span> </div>
-<div class="line"><a id="l05349" name="l05349"></a><span class="lineno"> 5349</span>  <span class="keywordflow">if</span> (rcv_wnd &lt;= last_rcv_wnd)</div>
-<div class="line"><a id="l05350" name="l05350"></a><span class="lineno"> 5350</span>  {</div>
-<div class="line"><a id="l05351" name="l05351"></a><span class="lineno"> 5351</span>    <span class="comment">/* This seems odd, but one can imagine more data arriving between when we were placed onto W&#39;s</span></div>
-<div class="line"><a id="l05352" name="l05352"></a><span class="lineno"> 5352</span><span class="comment">     * task queue and when we executed.  So it&#39;s not that odd and not worth INFO or WARNING. */</span></div>
-<div class="line"><a id="l05353" name="l05353"></a><span class="lineno"> 5353</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] Receive buffer space freed, but &quot;</span></div>
-<div class="line"><a id="l05354" name="l05354"></a><span class="lineno"> 5354</span>                   <span class="stringliteral">&quot;free space [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(rcv_wnd) &lt;&lt; <span class="stringliteral">&quot;] &lt;= prev &quot;</span></div>
-<div class="line"><a id="l05355" name="l05355"></a><span class="lineno"> 5355</span>                   <span class="stringliteral">&quot;free space [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(last_rcv_wnd) &lt;&lt; <span class="stringliteral">&quot;].  Nothing to do.&quot;</span>);</div>
-<div class="line"><a id="l05356" name="l05356"></a><span class="lineno"> 5356</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05357" name="l05357"></a><span class="lineno"> 5357</span>  }</div>
-<div class="line"><a id="l05358" name="l05358"></a><span class="lineno"> 5358</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l05359" name="l05359"></a><span class="lineno"> 5359</span> </div>
-<div class="line"><a id="l05360" name="l05360"></a><span class="lineno"> 5360</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> diff = rcv_wnd - last_rcv_wnd;</div>
-<div class="line"><a id="l05361" name="l05361"></a><span class="lineno"> 5361</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pct = sock-&gt;opt(sock-&gt;m_opts.m_st_rcv_buf_max_size_to_advertise_percent);</div>
-<div class="line"><a id="l05362" name="l05362"></a><span class="lineno"> 5362</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> max_rcv_buf_size = sock-&gt;max_block_size_multiple(sock-&gt;m_opts.m_st_rcv_buf_max_size);</div>
-<div class="line"><a id="l05363" name="l05363"></a><span class="lineno"> 5363</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> min_inc = max_rcv_buf_size * pct / 100;</div>
-<div class="line"><a id="l05364" name="l05364"></a><span class="lineno"> 5364</span> </div>
-<div class="line"><a id="l05365" name="l05365"></a><span class="lineno"> 5365</span>  <span class="keywordflow">if</span> (diff &lt; min_inc)</div>
-<div class="line"><a id="l05366" name="l05366"></a><span class="lineno"> 5366</span>  {</div>
-<div class="line"><a id="l05367" name="l05367"></a><span class="lineno"> 5367</span>    <span class="comment">// Not big enough increase; wait until more space is freed before informing other side.</span></div>
-<div class="line"><a id="l05368" name="l05368"></a><span class="lineno"> 5368</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] Receive buffer space &quot;</span></div>
-<div class="line"><a id="l05369" name="l05369"></a><span class="lineno"> 5369</span>                   <span class="stringliteral">&quot;freed is [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(diff) &lt;&lt; <span class="stringliteral">&quot;] since last advertisement; &quot;</span></div>
-<div class="line"><a id="l05370" name="l05370"></a><span class="lineno"> 5370</span>                   <span class="stringliteral">&quot;&lt; threshold [&quot;</span> &lt;&lt; pct &lt;&lt; <span class="stringliteral">&quot;%] x &quot;</span></div>
-<div class="line"><a id="l05371" name="l05371"></a><span class="lineno"> 5371</span>                   <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(max_rcv_buf_size) &lt;&lt; <span class="stringliteral">&quot;] = &quot;</span></div>
-<div class="line"><a id="l05372" name="l05372"></a><span class="lineno"> 5372</span>                   <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(min_inc) &lt;&lt; <span class="stringliteral">&quot;].  Not advertising rcv_wnd yet.&quot;</span>);</div>
-<div class="line"><a id="l05373" name="l05373"></a><span class="lineno"> 5373</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05374" name="l05374"></a><span class="lineno"> 5374</span>  }</div>
-<div class="line"><a id="l05375" name="l05375"></a><span class="lineno"> 5375</span>  <span class="comment">// else cool. Let&#39;s advertise it.</span></div>
-<div class="line"><a id="l05376" name="l05376"></a><span class="lineno"> 5376</span> </div>
-<div class="line"><a id="l05377" name="l05377"></a><span class="lineno"> 5377</span>  <span class="comment">// This is ~equally as rare as Receive buffer overflows, so this is worth an INFO message.</span></div>
-<div class="line"><a id="l05378" name="l05378"></a><span class="lineno"> 5378</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] Receive buffer space &quot;</span></div>
-<div class="line"><a id="l05379" name="l05379"></a><span class="lineno"> 5379</span>                <span class="stringliteral">&quot;freed is [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(diff) &lt;&lt; <span class="stringliteral">&quot;] since last advertisement; &quot;</span></div>
-<div class="line"><a id="l05380" name="l05380"></a><span class="lineno"> 5380</span>                <span class="stringliteral">&quot;rcv_wnd = [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(rcv_wnd) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l05381" name="l05381"></a><span class="lineno"> 5381</span>                <span class="stringliteral">&quot;&gt;= threshold [&quot;</span> &lt;&lt; pct &lt;&lt; <span class="stringliteral">&quot;%] x &quot;</span></div>
-<div class="line"><a id="l05382" name="l05382"></a><span class="lineno"> 5382</span>                <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(max_rcv_buf_size) &lt;&lt; <span class="stringliteral">&quot;] = &quot;</span></div>
-<div class="line"><a id="l05383" name="l05383"></a><span class="lineno"> 5383</span>                <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(min_inc) &lt;&lt; <span class="stringliteral">&quot;].  Sending unsolicited rcv_wnd-advertising ACK &quot;</span></div>
-<div class="line"><a id="l05384" name="l05384"></a><span class="lineno"> 5384</span>                <span class="stringliteral">&quot;and entering rcv_wnd recovery.&quot;</span>);</div>
-<div class="line"><a id="l05385" name="l05385"></a><span class="lineno"> 5385</span> </div>
-<div class="line"><a id="l05386" name="l05386"></a><span class="lineno"> 5386</span>  <span class="comment">// Prevent any further shenanigans (see above), until we exit this mode.</span></div>
-<div class="line"><a id="l05387" name="l05387"></a><span class="lineno"> 5387</span>  sock-&gt;m_rcv_in_rcv_wnd_recovery = <span class="keyword">true</span>;</div>
-<div class="line"><a id="l05388" name="l05388"></a><span class="lineno"> 5388</span>  <span class="comment">// Mark this down, so that we exit this mode eventually.</span></div>
-<div class="line"><a id="l05389" name="l05389"></a><span class="lineno"> 5389</span>  sock-&gt;m_rcv_wnd_recovery_start_time = Fine_clock::now();</div>
-<div class="line"><a id="l05390" name="l05390"></a><span class="lineno"> 5390</span> </div>
-<div class="line"><a id="l05391" name="l05391"></a><span class="lineno"> 5391</span>  <span class="comment">// Record we started the mode.</span></div>
-<div class="line"><a id="l05392" name="l05392"></a><span class="lineno"> 5392</span>  sock-&gt;m_rcv_stats.rcv_wnd_recovery_event_start();</div>
-<div class="line"><a id="l05393" name="l05393"></a><span class="lineno"> 5393</span> </div>
-<div class="line"><a id="l05394" name="l05394"></a><span class="lineno"> 5394</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a192d4b95b9f8a5c3d08b1e5486eb6f78">async_rcv_wnd_recovery</a>(sock, rcv_wnd);</div>
-<div class="line"><a id="l05395" name="l05395"></a><span class="lineno"> 5395</span>} <span class="comment">// Node::receive_wnd_updated()</span></div>
+<div class="line"><a id="l05349" name="l05349"></a><span class="lineno"> 5349</span>  <span class="comment">// Grab available Receive buffer space.</span></div>
+<div class="line"><a id="l05350" name="l05350"></a><span class="lineno"> 5350</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> rcv_wnd = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">sock_rcv_wnd</a>(sock);</div>
+<div class="line"><a id="l05351" name="l05351"></a><span class="lineno"> 5351</span>  <span class="comment">// @todo That was a ~copy/paste of Node::async_low_lvl_ack_send().  Add code reuse.</span></div>
+<div class="line"><a id="l05352" name="l05352"></a><span class="lineno"> 5352</span> </div>
+<div class="line"><a id="l05353" name="l05353"></a><span class="lineno"> 5353</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span>&amp; last_rcv_wnd = sock-&gt;m_rcv_last_sent_rcv_wnd;</div>
+<div class="line"><a id="l05354" name="l05354"></a><span class="lineno"> 5354</span> </div>
+<div class="line"><a id="l05355" name="l05355"></a><span class="lineno"> 5355</span>  <span class="keywordflow">if</span> (rcv_wnd &lt;= last_rcv_wnd)</div>
+<div class="line"><a id="l05356" name="l05356"></a><span class="lineno"> 5356</span>  {</div>
+<div class="line"><a id="l05357" name="l05357"></a><span class="lineno"> 5357</span>    <span class="comment">/* This seems odd, but one can imagine more data arriving between when we were placed onto W&#39;s</span></div>
+<div class="line"><a id="l05358" name="l05358"></a><span class="lineno"> 5358</span><span class="comment">     * task queue and when we executed.  So it&#39;s not that odd and not worth INFO or WARNING. */</span></div>
+<div class="line"><a id="l05359" name="l05359"></a><span class="lineno"> 5359</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] Receive buffer space freed, but &quot;</span></div>
+<div class="line"><a id="l05360" name="l05360"></a><span class="lineno"> 5360</span>                   <span class="stringliteral">&quot;free space [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(rcv_wnd) &lt;&lt; <span class="stringliteral">&quot;] &lt;= prev &quot;</span></div>
+<div class="line"><a id="l05361" name="l05361"></a><span class="lineno"> 5361</span>                   <span class="stringliteral">&quot;free space [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(last_rcv_wnd) &lt;&lt; <span class="stringliteral">&quot;].  Nothing to do.&quot;</span>);</div>
+<div class="line"><a id="l05362" name="l05362"></a><span class="lineno"> 5362</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05363" name="l05363"></a><span class="lineno"> 5363</span>  }</div>
+<div class="line"><a id="l05364" name="l05364"></a><span class="lineno"> 5364</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l05365" name="l05365"></a><span class="lineno"> 5365</span> </div>
+<div class="line"><a id="l05366" name="l05366"></a><span class="lineno"> 5366</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> diff = rcv_wnd - last_rcv_wnd;</div>
+<div class="line"><a id="l05367" name="l05367"></a><span class="lineno"> 5367</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pct = sock-&gt;opt(sock-&gt;m_opts.m_st_rcv_buf_max_size_to_advertise_percent);</div>
+<div class="line"><a id="l05368" name="l05368"></a><span class="lineno"> 5368</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> max_rcv_buf_size = sock-&gt;max_block_size_multiple(sock-&gt;m_opts.m_st_rcv_buf_max_size);</div>
+<div class="line"><a id="l05369" name="l05369"></a><span class="lineno"> 5369</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> min_inc = max_rcv_buf_size * pct / 100;</div>
+<div class="line"><a id="l05370" name="l05370"></a><span class="lineno"> 5370</span> </div>
+<div class="line"><a id="l05371" name="l05371"></a><span class="lineno"> 5371</span>  <span class="keywordflow">if</span> (diff &lt; min_inc)</div>
+<div class="line"><a id="l05372" name="l05372"></a><span class="lineno"> 5372</span>  {</div>
+<div class="line"><a id="l05373" name="l05373"></a><span class="lineno"> 5373</span>    <span class="comment">// Not big enough increase; wait until more space is freed before informing other side.</span></div>
+<div class="line"><a id="l05374" name="l05374"></a><span class="lineno"> 5374</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] Receive buffer space &quot;</span></div>
+<div class="line"><a id="l05375" name="l05375"></a><span class="lineno"> 5375</span>                   <span class="stringliteral">&quot;freed is [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(diff) &lt;&lt; <span class="stringliteral">&quot;] since last advertisement; &quot;</span></div>
+<div class="line"><a id="l05376" name="l05376"></a><span class="lineno"> 5376</span>                   <span class="stringliteral">&quot;&lt; threshold [&quot;</span> &lt;&lt; pct &lt;&lt; <span class="stringliteral">&quot;%] x &quot;</span></div>
+<div class="line"><a id="l05377" name="l05377"></a><span class="lineno"> 5377</span>                   <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(max_rcv_buf_size) &lt;&lt; <span class="stringliteral">&quot;] = &quot;</span></div>
+<div class="line"><a id="l05378" name="l05378"></a><span class="lineno"> 5378</span>                   <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(min_inc) &lt;&lt; <span class="stringliteral">&quot;].  Not advertising rcv_wnd yet.&quot;</span>);</div>
+<div class="line"><a id="l05379" name="l05379"></a><span class="lineno"> 5379</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05380" name="l05380"></a><span class="lineno"> 5380</span>  }</div>
+<div class="line"><a id="l05381" name="l05381"></a><span class="lineno"> 5381</span>  <span class="comment">// else cool. Let&#39;s advertise it.</span></div>
+<div class="line"><a id="l05382" name="l05382"></a><span class="lineno"> 5382</span> </div>
+<div class="line"><a id="l05383" name="l05383"></a><span class="lineno"> 5383</span>  <span class="comment">// This is ~equally as rare as Receive buffer overflows, so this is worth an INFO message.</span></div>
+<div class="line"><a id="l05384" name="l05384"></a><span class="lineno"> 5384</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] Receive buffer space &quot;</span></div>
+<div class="line"><a id="l05385" name="l05385"></a><span class="lineno"> 5385</span>                <span class="stringliteral">&quot;freed is [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(diff) &lt;&lt; <span class="stringliteral">&quot;] since last advertisement; &quot;</span></div>
+<div class="line"><a id="l05386" name="l05386"></a><span class="lineno"> 5386</span>                <span class="stringliteral">&quot;rcv_wnd = [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(rcv_wnd) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l05387" name="l05387"></a><span class="lineno"> 5387</span>                <span class="stringliteral">&quot;&gt;= threshold [&quot;</span> &lt;&lt; pct &lt;&lt; <span class="stringliteral">&quot;%] x &quot;</span></div>
+<div class="line"><a id="l05388" name="l05388"></a><span class="lineno"> 5388</span>                <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(max_rcv_buf_size) &lt;&lt; <span class="stringliteral">&quot;] = &quot;</span></div>
+<div class="line"><a id="l05389" name="l05389"></a><span class="lineno"> 5389</span>                <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(min_inc) &lt;&lt; <span class="stringliteral">&quot;].  Sending unsolicited rcv_wnd-advertising ACK &quot;</span></div>
+<div class="line"><a id="l05390" name="l05390"></a><span class="lineno"> 5390</span>                <span class="stringliteral">&quot;and entering rcv_wnd recovery.&quot;</span>);</div>
+<div class="line"><a id="l05391" name="l05391"></a><span class="lineno"> 5391</span> </div>
+<div class="line"><a id="l05392" name="l05392"></a><span class="lineno"> 5392</span>  <span class="comment">// Prevent any further shenanigans (see above), until we exit this mode.</span></div>
+<div class="line"><a id="l05393" name="l05393"></a><span class="lineno"> 5393</span>  sock-&gt;m_rcv_in_rcv_wnd_recovery = <span class="keyword">true</span>;</div>
+<div class="line"><a id="l05394" name="l05394"></a><span class="lineno"> 5394</span>  <span class="comment">// Mark this down, so that we exit this mode eventually.</span></div>
+<div class="line"><a id="l05395" name="l05395"></a><span class="lineno"> 5395</span>  sock-&gt;m_rcv_wnd_recovery_start_time = Fine_clock::now();</div>
 <div class="line"><a id="l05396" name="l05396"></a><span class="lineno"> 5396</span> </div>
-<div class="line"><a id="l05397" name="l05397"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a192d4b95b9f8a5c3d08b1e5486eb6f78"> 5397</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a192d4b95b9f8a5c3d08b1e5486eb6f78">Node::async_rcv_wnd_recovery</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keywordtype">size_t</span> rcv_wnd)</div>
-<div class="line"><a id="l05398" name="l05398"></a><span class="lineno"> 5398</span>{</div>
-<div class="line"><a id="l05399" name="l05399"></a><span class="lineno"> 5399</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
-<div class="line"><a id="l05400" name="l05400"></a><span class="lineno"> 5400</span>  <span class="keyword">using </span>boost::chrono::round;</div>
-<div class="line"><a id="l05401" name="l05401"></a><span class="lineno"> 5401</span>  <span class="keyword">using </span>boost::weak_ptr;</div>
+<div class="line"><a id="l05397" name="l05397"></a><span class="lineno"> 5397</span>  <span class="comment">// Record we started the mode.</span></div>
+<div class="line"><a id="l05398" name="l05398"></a><span class="lineno"> 5398</span>  sock-&gt;m_rcv_stats.rcv_wnd_recovery_event_start();</div>
+<div class="line"><a id="l05399" name="l05399"></a><span class="lineno"> 5399</span> </div>
+<div class="line"><a id="l05400" name="l05400"></a><span class="lineno"> 5400</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a192d4b95b9f8a5c3d08b1e5486eb6f78">async_rcv_wnd_recovery</a>(sock, rcv_wnd);</div>
+<div class="line"><a id="l05401" name="l05401"></a><span class="lineno"> 5401</span>} <span class="comment">// Node::receive_wnd_updated()</span></div>
 <div class="line"><a id="l05402" name="l05402"></a><span class="lineno"> 5402</span> </div>
-<div class="line"><a id="l05403" name="l05403"></a><span class="lineno"> 5403</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l05404" name="l05404"></a><span class="lineno"> 5404</span> </div>
-<div class="line"><a id="l05405" name="l05405"></a><span class="lineno"> 5405</span>  <span class="comment">// As discussed in Node::receive_wnd_updated(), send the ACK and then periodically re-send it until canceled.</span></div>
-<div class="line"><a id="l05406" name="l05406"></a><span class="lineno"> 5406</span> </div>
-<div class="line"><a id="l05407" name="l05407"></a><span class="lineno"> 5407</span>  <span class="comment">// Create an ACK with no packets acknowledged (so just a window update) and send it off.</span></div>
-<div class="line"><a id="l05408" name="l05408"></a><span class="lineno"> 5408</span>  <span class="keyword">auto</span> ack = Low_lvl_packet::create_uninit_packet&lt;Ack_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
-<div class="line"><a id="l05409" name="l05409"></a><span class="lineno"> 5409</span>  ack-&gt;m_rcv_wnd = rcv_wnd;</div>
-<div class="line"><a id="l05410" name="l05410"></a><span class="lineno"> 5410</span>  <span class="comment">// Record that it was advertised!</span></div>
-<div class="line"><a id="l05411" name="l05411"></a><span class="lineno"> 5411</span>  sock-&gt;m_rcv_last_sent_rcv_wnd = rcv_wnd;</div>
+<div class="line"><a id="l05403" name="l05403"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a192d4b95b9f8a5c3d08b1e5486eb6f78"> 5403</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a192d4b95b9f8a5c3d08b1e5486eb6f78">Node::async_rcv_wnd_recovery</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keywordtype">size_t</span> rcv_wnd)</div>
+<div class="line"><a id="l05404" name="l05404"></a><span class="lineno"> 5404</span>{</div>
+<div class="line"><a id="l05405" name="l05405"></a><span class="lineno"> 5405</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
+<div class="line"><a id="l05406" name="l05406"></a><span class="lineno"> 5406</span>  <span class="keyword">using </span>boost::chrono::round;</div>
+<div class="line"><a id="l05407" name="l05407"></a><span class="lineno"> 5407</span>  <span class="keyword">using </span>boost::weak_ptr;</div>
+<div class="line"><a id="l05408" name="l05408"></a><span class="lineno"> 5408</span> </div>
+<div class="line"><a id="l05409" name="l05409"></a><span class="lineno"> 5409</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l05410" name="l05410"></a><span class="lineno"> 5410</span> </div>
+<div class="line"><a id="l05411" name="l05411"></a><span class="lineno"> 5411</span>  <span class="comment">// As discussed in Node::receive_wnd_updated(), send the ACK and then periodically re-send it until canceled.</span></div>
 <div class="line"><a id="l05412" name="l05412"></a><span class="lineno"> 5412</span> </div>
-<div class="line"><a id="l05413" name="l05413"></a><span class="lineno"> 5413</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">async_sock_low_lvl_packet_send_or_close_immediately</a>(sock,</div>
-<div class="line"><a id="l05414" name="l05414"></a><span class="lineno"> 5414</span>                                                           <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(ack),</div>
-<div class="line"><a id="l05415" name="l05415"></a><span class="lineno"> 5415</span>                                                           <span class="keyword">false</span>))</div>
-<div class="line"><a id="l05416" name="l05416"></a><span class="lineno"> 5416</span>  <span class="comment">// ^-- defer_delta_check == false: for similar reason as in send_worker_check_state() calling send_worker().</span></div>
-<div class="line"><a id="l05417" name="l05417"></a><span class="lineno"> 5417</span>  {</div>
-<div class="line"><a id="l05418" name="l05418"></a><span class="lineno"> 5418</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05419" name="l05419"></a><span class="lineno"> 5419</span>  }</div>
-<div class="line"><a id="l05420" name="l05420"></a><span class="lineno"> 5420</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l05421" name="l05421"></a><span class="lineno"> 5421</span> </div>
-<div class="line"><a id="l05422" name="l05422"></a><span class="lineno"> 5422</span>  <span class="comment">// Register one ACK packet we will send ASAP (and that it acknowledged no individual packets).</span></div>
-<div class="line"><a id="l05423" name="l05423"></a><span class="lineno"> 5423</span>  sock-&gt;m_rcv_stats.sent_low_lvl_ack_packet(<span class="keyword">true</span>);</div>
-<div class="line"><a id="l05424" name="l05424"></a><span class="lineno"> 5424</span> </div>
-<div class="line"><a id="l05425" name="l05425"></a><span class="lineno"> 5425</span>  <span class="comment">// ACK queued to send soon.  Now, as discussed, protect against it being lost by scheduling a timer.</span></div>
-<div class="line"><a id="l05426" name="l05426"></a><span class="lineno"> 5426</span> </div>
-<div class="line"><a id="l05427" name="l05427"></a><span class="lineno"> 5427</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> fire_when_from_now = sock-&gt;opt(sock-&gt;m_opts.m_dyn_rcv_wnd_recovery_timer_period);</div>
-<div class="line"><a id="l05428" name="l05428"></a><span class="lineno"> 5428</span> </div>
-<div class="line"><a id="l05429" name="l05429"></a><span class="lineno"> 5429</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Setting timer to fire &quot;</span></div>
-<div class="line"><a id="l05430" name="l05430"></a><span class="lineno"> 5430</span>                <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(fire_when_from_now) &lt;&lt; <span class="stringliteral">&quot;] from now.&quot;</span>);</div>
-<div class="line"><a id="l05431" name="l05431"></a><span class="lineno"> 5431</span> </div>
-<div class="line"><a id="l05432" name="l05432"></a><span class="lineno"> 5432</span>  <span class="comment">/* As usual, when scheduling a thing we can use the much simpler util::schedule_task_*() API; or the</span></div>
-<div class="line"><a id="l05433" name="l05433"></a><span class="lineno"> 5433</span><span class="comment">   * full-featured boost.asio Timer.  We don&#39;t need the advanced features; so the only possible reason</span></div>
-<div class="line"><a id="l05434" name="l05434"></a><span class="lineno"> 5434</span><span class="comment">   * to go with Timer would be the perf considerations (see schedule_task_from_now() doc header for discussion).</span></div>
-<div class="line"><a id="l05435" name="l05435"></a><span class="lineno"> 5435</span><span class="comment">   * It is emphatically NOT the case that lots of these tasks are scheduled/fired/canceled per unit time;</span></div>
-<div class="line"><a id="l05436" name="l05436"></a><span class="lineno"> 5436</span><span class="comment">   * e.g., we see it as rare enough to be OK with an INFO log message.  Hence no need to reuse a Timer repeatedly,</span></div>
-<div class="line"><a id="l05437" name="l05437"></a><span class="lineno"> 5437</span><span class="comment">   * so use the simple API. */</span></div>
-<div class="line"><a id="l05438" name="l05438"></a><span class="lineno"> 5438</span> </div>
-<div class="line"><a id="l05439" name="l05439"></a><span class="lineno"> 5439</span>  sock-&gt;m_rcv_wnd_recovery_scheduled_task</div>
-<div class="line"><a id="l05440" name="l05440"></a><span class="lineno"> 5440</span>    = <a class="code hl_function" href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667">schedule_task_from_now</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), fire_when_from_now, <span class="keyword">true</span>, &amp;<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>,</div>
-<div class="line"><a id="l05441" name="l05441"></a><span class="lineno"> 5441</span>                             [<span class="keyword">this</span>, sock_observer = weak_ptr&lt;Peer_socket&gt;(sock)](<span class="keywordtype">bool</span>)</div>
-<div class="line"><a id="l05442" name="l05442"></a><span class="lineno"> 5442</span>  {</div>
-<div class="line"><a id="l05443" name="l05443"></a><span class="lineno"> 5443</span>     <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l05413" name="l05413"></a><span class="lineno"> 5413</span>  <span class="comment">// Create an ACK with no packets acknowledged (so just a window update) and send it off.</span></div>
+<div class="line"><a id="l05414" name="l05414"></a><span class="lineno"> 5414</span>  <span class="keyword">auto</span> ack = Low_lvl_packet::create_uninit_packet&lt;Ack_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
+<div class="line"><a id="l05415" name="l05415"></a><span class="lineno"> 5415</span>  ack-&gt;m_rcv_wnd = rcv_wnd;</div>
+<div class="line"><a id="l05416" name="l05416"></a><span class="lineno"> 5416</span>  <span class="comment">// Record that it was advertised!</span></div>
+<div class="line"><a id="l05417" name="l05417"></a><span class="lineno"> 5417</span>  sock-&gt;m_rcv_last_sent_rcv_wnd = rcv_wnd;</div>
+<div class="line"><a id="l05418" name="l05418"></a><span class="lineno"> 5418</span> </div>
+<div class="line"><a id="l05419" name="l05419"></a><span class="lineno"> 5419</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">async_sock_low_lvl_packet_send_or_close_immediately</a>(sock,</div>
+<div class="line"><a id="l05420" name="l05420"></a><span class="lineno"> 5420</span>                                                           <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(ack),</div>
+<div class="line"><a id="l05421" name="l05421"></a><span class="lineno"> 5421</span>                                                           <span class="keyword">false</span>))</div>
+<div class="line"><a id="l05422" name="l05422"></a><span class="lineno"> 5422</span>  <span class="comment">// ^-- defer_delta_check == false: for similar reason as in send_worker_check_state() calling send_worker().</span></div>
+<div class="line"><a id="l05423" name="l05423"></a><span class="lineno"> 5423</span>  {</div>
+<div class="line"><a id="l05424" name="l05424"></a><span class="lineno"> 5424</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05425" name="l05425"></a><span class="lineno"> 5425</span>  }</div>
+<div class="line"><a id="l05426" name="l05426"></a><span class="lineno"> 5426</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l05427" name="l05427"></a><span class="lineno"> 5427</span> </div>
+<div class="line"><a id="l05428" name="l05428"></a><span class="lineno"> 5428</span>  <span class="comment">// Register one ACK packet we will send ASAP (and that it acknowledged no individual packets).</span></div>
+<div class="line"><a id="l05429" name="l05429"></a><span class="lineno"> 5429</span>  sock-&gt;m_rcv_stats.sent_low_lvl_ack_packet(<span class="keyword">true</span>);</div>
+<div class="line"><a id="l05430" name="l05430"></a><span class="lineno"> 5430</span> </div>
+<div class="line"><a id="l05431" name="l05431"></a><span class="lineno"> 5431</span>  <span class="comment">// ACK queued to send soon.  Now, as discussed, protect against it being lost by scheduling a timer.</span></div>
+<div class="line"><a id="l05432" name="l05432"></a><span class="lineno"> 5432</span> </div>
+<div class="line"><a id="l05433" name="l05433"></a><span class="lineno"> 5433</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> fire_when_from_now = sock-&gt;opt(sock-&gt;m_opts.m_dyn_rcv_wnd_recovery_timer_period);</div>
+<div class="line"><a id="l05434" name="l05434"></a><span class="lineno"> 5434</span> </div>
+<div class="line"><a id="l05435" name="l05435"></a><span class="lineno"> 5435</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Setting timer to fire &quot;</span></div>
+<div class="line"><a id="l05436" name="l05436"></a><span class="lineno"> 5436</span>                <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(fire_when_from_now) &lt;&lt; <span class="stringliteral">&quot;] from now.&quot;</span>);</div>
+<div class="line"><a id="l05437" name="l05437"></a><span class="lineno"> 5437</span> </div>
+<div class="line"><a id="l05438" name="l05438"></a><span class="lineno"> 5438</span>  <span class="comment">/* As usual, when scheduling a thing we can use the much simpler util::schedule_task_*() API; or the</span></div>
+<div class="line"><a id="l05439" name="l05439"></a><span class="lineno"> 5439</span><span class="comment">   * full-featured boost.asio Timer.  We don&#39;t need the advanced features; so the only possible reason</span></div>
+<div class="line"><a id="l05440" name="l05440"></a><span class="lineno"> 5440</span><span class="comment">   * to go with Timer would be the perf considerations (see schedule_task_from_now() doc header for discussion).</span></div>
+<div class="line"><a id="l05441" name="l05441"></a><span class="lineno"> 5441</span><span class="comment">   * It is emphatically NOT the case that lots of these tasks are scheduled/fired/canceled per unit time;</span></div>
+<div class="line"><a id="l05442" name="l05442"></a><span class="lineno"> 5442</span><span class="comment">   * e.g., we see it as rare enough to be OK with an INFO log message.  Hence no need to reuse a Timer repeatedly,</span></div>
+<div class="line"><a id="l05443" name="l05443"></a><span class="lineno"> 5443</span><span class="comment">   * so use the simple API. */</span></div>
 <div class="line"><a id="l05444" name="l05444"></a><span class="lineno"> 5444</span> </div>
-<div class="line"><a id="l05445" name="l05445"></a><span class="lineno"> 5445</span>    <span class="keyword">auto</span> sock = sock_observer.lock();</div>
-<div class="line"><a id="l05446" name="l05446"></a><span class="lineno"> 5446</span>    <span class="keywordflow">if</span> (!sock)</div>
-<div class="line"><a id="l05447" name="l05447"></a><span class="lineno"> 5447</span>    {</div>
-<div class="line"><a id="l05448" name="l05448"></a><span class="lineno"> 5448</span>      <span class="keywordflow">return</span>; <span class="comment">// Possible or not, allow for this possibility for maintainability.</span></div>
-<div class="line"><a id="l05449" name="l05449"></a><span class="lineno"> 5449</span>    }</div>
-<div class="line"><a id="l05450" name="l05450"></a><span class="lineno"> 5450</span>    <span class="comment">// else</span></div>
-<div class="line"><a id="l05451" name="l05451"></a><span class="lineno"> 5451</span> </div>
-<div class="line"><a id="l05452" name="l05452"></a><span class="lineno"> 5452</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> since_recovery_started = Fine_clock::now() - sock-&gt;m_rcv_wnd_recovery_start_time;</div>
-<div class="line"><a id="l05453" name="l05453"></a><span class="lineno"> 5453</span>    <span class="keywordflow">if</span> (since_recovery_started &gt; sock-&gt;opt(sock-&gt;m_opts.m_dyn_rcv_wnd_recovery_max_period))</div>
-<div class="line"><a id="l05454" name="l05454"></a><span class="lineno"> 5454</span>    {</div>
-<div class="line"><a id="l05455" name="l05455"></a><span class="lineno"> 5455</span>      <span class="comment">// We&#39;ve kept ACKing for a long time, and still no data.  Give up: it&#39;s all up to the sender now.</span></div>
-<div class="line"><a id="l05456" name="l05456"></a><span class="lineno"> 5456</span> </div>
-<div class="line"><a id="l05457" name="l05457"></a><span class="lineno"> 5457</span>      <span class="comment">// This is ~equally as rare as Receive buffer overflows, so this is worth an INFO message.</span></div>
-<div class="line"><a id="l05458" name="l05458"></a><span class="lineno"> 5458</span>      <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: still no new DATA arrived since last rcv_wnd advertisement; &quot;</span></div>
-<div class="line"><a id="l05459" name="l05459"></a><span class="lineno"> 5459</span>                    <span class="stringliteral">&quot;Time since entering recovery [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(since_recovery_started) &lt;&lt; <span class="stringliteral">&quot;] expired.  &quot;</span></div>
-<div class="line"><a id="l05460" name="l05460"></a><span class="lineno"> 5460</span>                    <span class="stringliteral">&quot;Ending rcv_wnd recovery.&quot;</span>);</div>
-<div class="line"><a id="l05461" name="l05461"></a><span class="lineno"> 5461</span>      sock-&gt;m_rcv_in_rcv_wnd_recovery = <span class="keyword">false</span>;</div>
+<div class="line"><a id="l05445" name="l05445"></a><span class="lineno"> 5445</span>  sock-&gt;m_rcv_wnd_recovery_scheduled_task</div>
+<div class="line"><a id="l05446" name="l05446"></a><span class="lineno"> 5446</span>    = <a class="code hl_function" href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667">schedule_task_from_now</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), fire_when_from_now, <span class="keyword">true</span>, &amp;<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>,</div>
+<div class="line"><a id="l05447" name="l05447"></a><span class="lineno"> 5447</span>                             [<span class="keyword">this</span>, sock_observer = weak_ptr&lt;Peer_socket&gt;(sock)](<span class="keywordtype">bool</span>)</div>
+<div class="line"><a id="l05448" name="l05448"></a><span class="lineno"> 5448</span>  {</div>
+<div class="line"><a id="l05449" name="l05449"></a><span class="lineno"> 5449</span>     <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l05450" name="l05450"></a><span class="lineno"> 5450</span> </div>
+<div class="line"><a id="l05451" name="l05451"></a><span class="lineno"> 5451</span>    <span class="keyword">auto</span> sock = sock_observer.lock();</div>
+<div class="line"><a id="l05452" name="l05452"></a><span class="lineno"> 5452</span>    <span class="keywordflow">if</span> (!sock)</div>
+<div class="line"><a id="l05453" name="l05453"></a><span class="lineno"> 5453</span>    {</div>
+<div class="line"><a id="l05454" name="l05454"></a><span class="lineno"> 5454</span>      <span class="keywordflow">return</span>; <span class="comment">// Possible or not, allow for this possibility for maintainability.</span></div>
+<div class="line"><a id="l05455" name="l05455"></a><span class="lineno"> 5455</span>    }</div>
+<div class="line"><a id="l05456" name="l05456"></a><span class="lineno"> 5456</span>    <span class="comment">// else</span></div>
+<div class="line"><a id="l05457" name="l05457"></a><span class="lineno"> 5457</span> </div>
+<div class="line"><a id="l05458" name="l05458"></a><span class="lineno"> 5458</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> since_recovery_started = Fine_clock::now() - sock-&gt;m_rcv_wnd_recovery_start_time;</div>
+<div class="line"><a id="l05459" name="l05459"></a><span class="lineno"> 5459</span>    <span class="keywordflow">if</span> (since_recovery_started &gt; sock-&gt;opt(sock-&gt;m_opts.m_dyn_rcv_wnd_recovery_max_period))</div>
+<div class="line"><a id="l05460" name="l05460"></a><span class="lineno"> 5460</span>    {</div>
+<div class="line"><a id="l05461" name="l05461"></a><span class="lineno"> 5461</span>      <span class="comment">// We&#39;ve kept ACKing for a long time, and still no data.  Give up: it&#39;s all up to the sender now.</span></div>
 <div class="line"><a id="l05462" name="l05462"></a><span class="lineno"> 5462</span> </div>
-<div class="line"><a id="l05463" name="l05463"></a><span class="lineno"> 5463</span>      <span class="comment">// Record we ended in timeout.</span></div>
-<div class="line"><a id="l05464" name="l05464"></a><span class="lineno"> 5464</span>      sock-&gt;m_rcv_stats.rcv_wnd_recovery_event_finish(<span class="keyword">false</span>);</div>
-<div class="line"><a id="l05465" name="l05465"></a><span class="lineno"> 5465</span> </div>
-<div class="line"><a id="l05466" name="l05466"></a><span class="lineno"> 5466</span>      <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05467" name="l05467"></a><span class="lineno"> 5467</span>    }</div>
-<div class="line"><a id="l05468" name="l05468"></a><span class="lineno"> 5468</span>    <span class="comment">// else</span></div>
-<div class="line"><a id="l05469" name="l05469"></a><span class="lineno"> 5469</span> </div>
-<div class="line"><a id="l05470" name="l05470"></a><span class="lineno"> 5470</span>    <span class="comment">// Still in rcv_wnd recovery.  Send another unsolicited ACK (as in receive_wnd_updated()).</span></div>
+<div class="line"><a id="l05463" name="l05463"></a><span class="lineno"> 5463</span>      <span class="comment">// This is ~equally as rare as Receive buffer overflows, so this is worth an INFO message.</span></div>
+<div class="line"><a id="l05464" name="l05464"></a><span class="lineno"> 5464</span>      <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: still no new DATA arrived since last rcv_wnd advertisement; &quot;</span></div>
+<div class="line"><a id="l05465" name="l05465"></a><span class="lineno"> 5465</span>                    <span class="stringliteral">&quot;Time since entering recovery [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(since_recovery_started) &lt;&lt; <span class="stringliteral">&quot;] expired.  &quot;</span></div>
+<div class="line"><a id="l05466" name="l05466"></a><span class="lineno"> 5466</span>                    <span class="stringliteral">&quot;Ending rcv_wnd recovery.&quot;</span>);</div>
+<div class="line"><a id="l05467" name="l05467"></a><span class="lineno"> 5467</span>      sock-&gt;m_rcv_in_rcv_wnd_recovery = <span class="keyword">false</span>;</div>
+<div class="line"><a id="l05468" name="l05468"></a><span class="lineno"> 5468</span> </div>
+<div class="line"><a id="l05469" name="l05469"></a><span class="lineno"> 5469</span>      <span class="comment">// Record we ended in timeout.</span></div>
+<div class="line"><a id="l05470" name="l05470"></a><span class="lineno"> 5470</span>      sock-&gt;m_rcv_stats.rcv_wnd_recovery_event_finish(<span class="keyword">false</span>);</div>
 <div class="line"><a id="l05471" name="l05471"></a><span class="lineno"> 5471</span> </div>
-<div class="line"><a id="l05472" name="l05472"></a><span class="lineno"> 5472</span>    <span class="comment">// Re-grab available Receive buffer space.</span></div>
-<div class="line"><a id="l05473" name="l05473"></a><span class="lineno"> 5473</span>    <span class="keyword">const</span> <span class="keywordtype">size_t</span> rcv_wnd = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">sock_rcv_wnd</a>(sock);</div>
-<div class="line"><a id="l05474" name="l05474"></a><span class="lineno"> 5474</span> </div>
-<div class="line"><a id="l05475" name="l05475"></a><span class="lineno"> 5475</span>    <span class="comment">// This is ~equally as rare as Receive buffer overflows, so this is worth an INFO message.</span></div>
-<div class="line"><a id="l05476" name="l05476"></a><span class="lineno"> 5476</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: still no new DATA arrived since last rcv_wnd advertisement; &quot;</span></div>
-<div class="line"><a id="l05477" name="l05477"></a><span class="lineno"> 5477</span>                  <span class="stringliteral">&quot;rcv_wnd = [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(rcv_wnd) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
-<div class="line"><a id="l05478" name="l05478"></a><span class="lineno"> 5478</span>                  <span class="stringliteral">&quot;time since entering recovery [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(since_recovery_started) &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
-<div class="line"><a id="l05479" name="l05479"></a><span class="lineno"> 5479</span>                  <span class="stringliteral">&quot;Sending unsolicited rcv_wnd-advertising ACK and continuing rcv_wnd recovery.&quot;</span>);</div>
+<div class="line"><a id="l05472" name="l05472"></a><span class="lineno"> 5472</span>      <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05473" name="l05473"></a><span class="lineno"> 5473</span>    }</div>
+<div class="line"><a id="l05474" name="l05474"></a><span class="lineno"> 5474</span>    <span class="comment">// else</span></div>
+<div class="line"><a id="l05475" name="l05475"></a><span class="lineno"> 5475</span> </div>
+<div class="line"><a id="l05476" name="l05476"></a><span class="lineno"> 5476</span>    <span class="comment">// Still in rcv_wnd recovery.  Send another unsolicited ACK (as in receive_wnd_updated()).</span></div>
+<div class="line"><a id="l05477" name="l05477"></a><span class="lineno"> 5477</span> </div>
+<div class="line"><a id="l05478" name="l05478"></a><span class="lineno"> 5478</span>    <span class="comment">// Re-grab available Receive buffer space.</span></div>
+<div class="line"><a id="l05479" name="l05479"></a><span class="lineno"> 5479</span>    <span class="keyword">const</span> <span class="keywordtype">size_t</span> rcv_wnd = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">sock_rcv_wnd</a>(sock);</div>
 <div class="line"><a id="l05480" name="l05480"></a><span class="lineno"> 5480</span> </div>
-<div class="line"><a id="l05481" name="l05481"></a><span class="lineno"> 5481</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a192d4b95b9f8a5c3d08b1e5486eb6f78">async_rcv_wnd_recovery</a>(sock, rcv_wnd);</div>
-<div class="line"><a id="l05482" name="l05482"></a><span class="lineno"> 5482</span>  }); <span class="comment">// on-scheduled-task-fired</span></div>
-<div class="line"><a id="l05483" name="l05483"></a><span class="lineno"> 5483</span>} <span class="comment">// Node::async_rcv_wnd_recovery()</span></div>
-<div class="line"><a id="l05484" name="l05484"></a><span class="lineno"> 5484</span> </div>
-<div class="line"><a id="l05485" name="l05485"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a45b05340098b0eb66f88a6a7e5f3d36f"> 5485</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a45b05340098b0eb66f88a6a7e5f3d36f">Node::receive_wnd_recovery_data_received</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
-<div class="line"><a id="l05486" name="l05486"></a><span class="lineno"> 5486</span>{</div>
-<div class="line"><a id="l05487" name="l05487"></a><span class="lineno"> 5487</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
-<div class="line"><a id="l05488" name="l05488"></a><span class="lineno"> 5488</span>  <span class="keyword">using </span>boost::chrono::round;</div>
-<div class="line"><a id="l05489" name="l05489"></a><span class="lineno"> 5489</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">util::scheduled_task_cancel</a>;</div>
+<div class="line"><a id="l05481" name="l05481"></a><span class="lineno"> 5481</span>    <span class="comment">// This is ~equally as rare as Receive buffer overflows, so this is worth an INFO message.</span></div>
+<div class="line"><a id="l05482" name="l05482"></a><span class="lineno"> 5482</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: still no new DATA arrived since last rcv_wnd advertisement; &quot;</span></div>
+<div class="line"><a id="l05483" name="l05483"></a><span class="lineno"> 5483</span>                  <span class="stringliteral">&quot;rcv_wnd = [&quot;</span> &lt;&lt; sock-&gt;bytes_blocks_str(rcv_wnd) &lt;&lt; <span class="stringliteral">&quot;]; &quot;</span></div>
+<div class="line"><a id="l05484" name="l05484"></a><span class="lineno"> 5484</span>                  <span class="stringliteral">&quot;time since entering recovery [&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(since_recovery_started) &lt;&lt; <span class="stringliteral">&quot;].  &quot;</span></div>
+<div class="line"><a id="l05485" name="l05485"></a><span class="lineno"> 5485</span>                  <span class="stringliteral">&quot;Sending unsolicited rcv_wnd-advertising ACK and continuing rcv_wnd recovery.&quot;</span>);</div>
+<div class="line"><a id="l05486" name="l05486"></a><span class="lineno"> 5486</span> </div>
+<div class="line"><a id="l05487" name="l05487"></a><span class="lineno"> 5487</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a192d4b95b9f8a5c3d08b1e5486eb6f78">async_rcv_wnd_recovery</a>(sock, rcv_wnd);</div>
+<div class="line"><a id="l05488" name="l05488"></a><span class="lineno"> 5488</span>  }); <span class="comment">// on-scheduled-task-fired</span></div>
+<div class="line"><a id="l05489" name="l05489"></a><span class="lineno"> 5489</span>} <span class="comment">// Node::async_rcv_wnd_recovery()</span></div>
 <div class="line"><a id="l05490" name="l05490"></a><span class="lineno"> 5490</span> </div>
-<div class="line"><a id="l05491" name="l05491"></a><span class="lineno"> 5491</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l05492" name="l05492"></a><span class="lineno"> 5492</span> </div>
-<div class="line"><a id="l05493" name="l05493"></a><span class="lineno"> 5493</span>  <span class="comment">// We got some good DATA.  If we were sending unsolicited window update ACKs, we can now stop.</span></div>
-<div class="line"><a id="l05494" name="l05494"></a><span class="lineno"> 5494</span> </div>
-<div class="line"><a id="l05495" name="l05495"></a><span class="lineno"> 5495</span>  <span class="keywordflow">if</span> (!sock-&gt;m_rcv_in_rcv_wnd_recovery)</div>
-<div class="line"><a id="l05496" name="l05496"></a><span class="lineno"> 5496</span>  {</div>
-<div class="line"><a id="l05497" name="l05497"></a><span class="lineno"> 5497</span>    <span class="comment">// We weren&#39;t.</span></div>
-<div class="line"><a id="l05498" name="l05498"></a><span class="lineno"> 5498</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05499" name="l05499"></a><span class="lineno"> 5499</span>  }</div>
-<div class="line"><a id="l05500" name="l05500"></a><span class="lineno"> 5500</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l05501" name="l05501"></a><span class="lineno"> 5501</span> </div>
-<div class="line"><a id="l05502" name="l05502"></a><span class="lineno"> 5502</span>  <span class="comment">// This is ~equally as rare as Receive buffer overflows, so this is worth an INFO message.</span></div>
-<div class="line"><a id="l05503" name="l05503"></a><span class="lineno"> 5503</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: Canceling rcv_wnd recovery; &quot;</span></div>
-<div class="line"><a id="l05504" name="l05504"></a><span class="lineno"> 5504</span>                <span class="stringliteral">&quot;Time since entering recovery &quot;</span></div>
-<div class="line"><a id="l05505" name="l05505"></a><span class="lineno"> 5505</span>                <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(Fine_clock::now() - sock-&gt;m_rcv_wnd_recovery_start_time) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l05506" name="l05506"></a><span class="lineno"> 5506</span> </div>
-<div class="line"><a id="l05507" name="l05507"></a><span class="lineno"> 5507</span>  sock-&gt;m_rcv_in_rcv_wnd_recovery = <span class="keyword">false</span>;</div>
-<div class="line"><a id="l05508" name="l05508"></a><span class="lineno"> 5508</span><span class="preprocessor">#ifndef NDEBUG</span></div>
-<div class="line"><a id="l05509" name="l05509"></a><span class="lineno"> 5509</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> canceled =</div>
-<div class="line"><a id="l05510" name="l05510"></a><span class="lineno"> 5510</span><span class="preprocessor">#endif</span></div>
-<div class="line"><a id="l05511" name="l05511"></a><span class="lineno"> 5511</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">scheduled_task_cancel</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock-&gt;m_rcv_wnd_recovery_scheduled_task);</div>
-<div class="line"><a id="l05512" name="l05512"></a><span class="lineno"> 5512</span>  assert(canceled);</div>
-<div class="line"><a id="l05513" name="l05513"></a><span class="lineno"> 5513</span> </div>
-<div class="line"><a id="l05514" name="l05514"></a><span class="lineno"> 5514</span>  <span class="comment">// Record we ended in success.</span></div>
-<div class="line"><a id="l05515" name="l05515"></a><span class="lineno"> 5515</span>  sock-&gt;m_rcv_stats.rcv_wnd_recovery_event_finish(<span class="keyword">true</span>);</div>
-<div class="line"><a id="l05516" name="l05516"></a><span class="lineno"> 5516</span>}</div>
-<div class="line"><a id="l05517" name="l05517"></a><span class="lineno"> 5517</span> </div>
-<div class="line"><a id="l05518" name="l05518"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c"> 5518</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">Node::sock_rcv_wnd</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
-<div class="line"><a id="l05519" name="l05519"></a><span class="lineno"> 5519</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l05520" name="l05520"></a><span class="lineno"> 5520</span>  <span class="keyword">using </span>std::numeric_limits;</div>
-<div class="line"><a id="l05521" name="l05521"></a><span class="lineno"> 5521</span> </div>
-<div class="line"><a id="l05522" name="l05522"></a><span class="lineno"> 5522</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l05491" name="l05491"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a45b05340098b0eb66f88a6a7e5f3d36f"> 5491</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a45b05340098b0eb66f88a6a7e5f3d36f">Node::receive_wnd_recovery_data_received</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
+<div class="line"><a id="l05492" name="l05492"></a><span class="lineno"> 5492</span>{</div>
+<div class="line"><a id="l05493" name="l05493"></a><span class="lineno"> 5493</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
+<div class="line"><a id="l05494" name="l05494"></a><span class="lineno"> 5494</span>  <span class="keyword">using </span>boost::chrono::round;</div>
+<div class="line"><a id="l05495" name="l05495"></a><span class="lineno"> 5495</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">util::scheduled_task_cancel</a>;</div>
+<div class="line"><a id="l05496" name="l05496"></a><span class="lineno"> 5496</span> </div>
+<div class="line"><a id="l05497" name="l05497"></a><span class="lineno"> 5497</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l05498" name="l05498"></a><span class="lineno"> 5498</span> </div>
+<div class="line"><a id="l05499" name="l05499"></a><span class="lineno"> 5499</span>  <span class="comment">// We got some good DATA.  If we were sending unsolicited window update ACKs, we can now stop.</span></div>
+<div class="line"><a id="l05500" name="l05500"></a><span class="lineno"> 5500</span> </div>
+<div class="line"><a id="l05501" name="l05501"></a><span class="lineno"> 5501</span>  <span class="keywordflow">if</span> (!sock-&gt;m_rcv_in_rcv_wnd_recovery)</div>
+<div class="line"><a id="l05502" name="l05502"></a><span class="lineno"> 5502</span>  {</div>
+<div class="line"><a id="l05503" name="l05503"></a><span class="lineno"> 5503</span>    <span class="comment">// We weren&#39;t.</span></div>
+<div class="line"><a id="l05504" name="l05504"></a><span class="lineno"> 5504</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05505" name="l05505"></a><span class="lineno"> 5505</span>  }</div>
+<div class="line"><a id="l05506" name="l05506"></a><span class="lineno"> 5506</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l05507" name="l05507"></a><span class="lineno"> 5507</span> </div>
+<div class="line"><a id="l05508" name="l05508"></a><span class="lineno"> 5508</span>  <span class="comment">// This is ~equally as rare as Receive buffer overflows, so this is worth an INFO message.</span></div>
+<div class="line"><a id="l05509" name="l05509"></a><span class="lineno"> 5509</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]: Canceling rcv_wnd recovery; &quot;</span></div>
+<div class="line"><a id="l05510" name="l05510"></a><span class="lineno"> 5510</span>                <span class="stringliteral">&quot;Time since entering recovery &quot;</span></div>
+<div class="line"><a id="l05511" name="l05511"></a><span class="lineno"> 5511</span>                <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; round&lt;milliseconds&gt;(Fine_clock::now() - sock-&gt;m_rcv_wnd_recovery_start_time) &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l05512" name="l05512"></a><span class="lineno"> 5512</span> </div>
+<div class="line"><a id="l05513" name="l05513"></a><span class="lineno"> 5513</span>  sock-&gt;m_rcv_in_rcv_wnd_recovery = <span class="keyword">false</span>;</div>
+<div class="line"><a id="l05514" name="l05514"></a><span class="lineno"> 5514</span><span class="preprocessor">#ifndef NDEBUG</span></div>
+<div class="line"><a id="l05515" name="l05515"></a><span class="lineno"> 5515</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> canceled =</div>
+<div class="line"><a id="l05516" name="l05516"></a><span class="lineno"> 5516</span><span class="preprocessor">#endif</span></div>
+<div class="line"><a id="l05517" name="l05517"></a><span class="lineno"> 5517</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">scheduled_task_cancel</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), sock-&gt;m_rcv_wnd_recovery_scheduled_task);</div>
+<div class="line"><a id="l05518" name="l05518"></a><span class="lineno"> 5518</span>  assert(canceled);</div>
+<div class="line"><a id="l05519" name="l05519"></a><span class="lineno"> 5519</span> </div>
+<div class="line"><a id="l05520" name="l05520"></a><span class="lineno"> 5520</span>  <span class="comment">// Record we ended in success.</span></div>
+<div class="line"><a id="l05521" name="l05521"></a><span class="lineno"> 5521</span>  sock-&gt;m_rcv_stats.rcv_wnd_recovery_event_finish(<span class="keyword">true</span>);</div>
+<div class="line"><a id="l05522" name="l05522"></a><span class="lineno"> 5522</span>}</div>
 <div class="line"><a id="l05523" name="l05523"></a><span class="lineno"> 5523</span> </div>
-<div class="line"><a id="l05524" name="l05524"></a><span class="lineno"> 5524</span>  <span class="keywordflow">if</span> (!sock-&gt;opt(sock-&gt;m_opts.m_st_rcv_flow_control_on))</div>
-<div class="line"><a id="l05525" name="l05525"></a><span class="lineno"> 5525</span>  {</div>
-<div class="line"><a id="l05526" name="l05526"></a><span class="lineno"> 5526</span>    <span class="comment">/* Flow control disabled, so if we always advertise the same huge value, the other side will</span></div>
-<div class="line"><a id="l05527" name="l05527"></a><span class="lineno"> 5527</span><span class="comment">     * never stop sending due to rcv_wnd.  On this side, we won&#39;t activate rcv_wnd recovery, because</span></div>
-<div class="line"><a id="l05528" name="l05528"></a><span class="lineno"> 5528</span><span class="comment">     * the &quot;last advertised&quot; window will always equal the current window. */</span></div>
-<div class="line"><a id="l05529" name="l05529"></a><span class="lineno"> 5529</span>    <span class="keywordflow">return</span> numeric_limits&lt;size_t&gt;::max();</div>
-<div class="line"><a id="l05530" name="l05530"></a><span class="lineno"> 5530</span>  }</div>
-<div class="line"><a id="l05531" name="l05531"></a><span class="lineno"> 5531</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l05532" name="l05532"></a><span class="lineno"> 5532</span> </div>
-<div class="line"><a id="l05533" name="l05533"></a><span class="lineno"> 5533</span>  <span class="comment">// Grab available Receive buffer space.  We have to momentarily lock sock due to access to sock-&gt;m_rcv_buf.</span></div>
-<div class="line"><a id="l05534" name="l05534"></a><span class="lineno"> 5534</span>  <span class="keywordtype">size_t</span> rcv_buf_size;</div>
-<div class="line"><a id="l05535" name="l05535"></a><span class="lineno"> 5535</span>  {</div>
-<div class="line"><a id="l05536" name="l05536"></a><span class="lineno"> 5536</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock;</div>
-<div class="line"><a id="l05537" name="l05537"></a><span class="lineno"> 5537</span>    rcv_buf_size = sock-&gt;m_rcv_buf.data_size();</div>
-<div class="line"><a id="l05538" name="l05538"></a><span class="lineno"> 5538</span>  }</div>
-<div class="line"><a id="l05539" name="l05539"></a><span class="lineno"> 5539</span> </div>
-<div class="line"><a id="l05540" name="l05540"></a><span class="lineno"> 5540</span>  <span class="comment">// Add the reassembly queue cumulative stored data size.  Why? See sock_data_to_reassembly_q_unless_overflow().</span></div>
-<div class="line"><a id="l05541" name="l05541"></a><span class="lineno"> 5541</span>  <span class="keywordflow">if</span> (sock-&gt;rexmit_on())</div>
-<div class="line"><a id="l05542" name="l05542"></a><span class="lineno"> 5542</span>  {</div>
-<div class="line"><a id="l05543" name="l05543"></a><span class="lineno"> 5543</span>    rcv_buf_size += sock-&gt;m_rcv_reassembly_q_data_size; <span class="comment">// (At least one reason we must be in thread W.)</span></div>
+<div class="line"><a id="l05524" name="l05524"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c"> 5524</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">Node::sock_rcv_wnd</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
+<div class="line"><a id="l05525" name="l05525"></a><span class="lineno"> 5525</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l05526" name="l05526"></a><span class="lineno"> 5526</span>  <span class="keyword">using </span>std::numeric_limits;</div>
+<div class="line"><a id="l05527" name="l05527"></a><span class="lineno"> 5527</span> </div>
+<div class="line"><a id="l05528" name="l05528"></a><span class="lineno"> 5528</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l05529" name="l05529"></a><span class="lineno"> 5529</span> </div>
+<div class="line"><a id="l05530" name="l05530"></a><span class="lineno"> 5530</span>  <span class="keywordflow">if</span> (!sock-&gt;opt(sock-&gt;m_opts.m_st_rcv_flow_control_on))</div>
+<div class="line"><a id="l05531" name="l05531"></a><span class="lineno"> 5531</span>  {</div>
+<div class="line"><a id="l05532" name="l05532"></a><span class="lineno"> 5532</span>    <span class="comment">/* Flow control disabled, so if we always advertise the same huge value, the other side will</span></div>
+<div class="line"><a id="l05533" name="l05533"></a><span class="lineno"> 5533</span><span class="comment">     * never stop sending due to rcv_wnd.  On this side, we won&#39;t activate rcv_wnd recovery, because</span></div>
+<div class="line"><a id="l05534" name="l05534"></a><span class="lineno"> 5534</span><span class="comment">     * the &quot;last advertised&quot; window will always equal the current window. */</span></div>
+<div class="line"><a id="l05535" name="l05535"></a><span class="lineno"> 5535</span>    <span class="keywordflow">return</span> numeric_limits&lt;size_t&gt;::max();</div>
+<div class="line"><a id="l05536" name="l05536"></a><span class="lineno"> 5536</span>  }</div>
+<div class="line"><a id="l05537" name="l05537"></a><span class="lineno"> 5537</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l05538" name="l05538"></a><span class="lineno"> 5538</span> </div>
+<div class="line"><a id="l05539" name="l05539"></a><span class="lineno"> 5539</span>  <span class="comment">// Grab available Receive buffer space.  We have to momentarily lock sock due to access to sock-&gt;m_rcv_buf.</span></div>
+<div class="line"><a id="l05540" name="l05540"></a><span class="lineno"> 5540</span>  <span class="keywordtype">size_t</span> rcv_buf_size;</div>
+<div class="line"><a id="l05541" name="l05541"></a><span class="lineno"> 5541</span>  {</div>
+<div class="line"><a id="l05542" name="l05542"></a><span class="lineno"> 5542</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock;</div>
+<div class="line"><a id="l05543" name="l05543"></a><span class="lineno"> 5543</span>    rcv_buf_size = sock-&gt;m_rcv_buf.data_size();</div>
 <div class="line"><a id="l05544" name="l05544"></a><span class="lineno"> 5544</span>  }</div>
 <div class="line"><a id="l05545" name="l05545"></a><span class="lineno"> 5545</span> </div>
-<div class="line"><a id="l05546" name="l05546"></a><span class="lineno"> 5546</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> max_rcv_buf_size = sock-&gt;max_block_size_multiple(sock-&gt;m_opts.m_st_rcv_buf_max_size);</div>
-<div class="line"><a id="l05547" name="l05547"></a><span class="lineno"> 5547</span> </div>
-<div class="line"><a id="l05548" name="l05548"></a><span class="lineno"> 5548</span>  <span class="keywordflow">return</span> (max_rcv_buf_size &gt; rcv_buf_size) ? (max_rcv_buf_size - rcv_buf_size) : 0;</div>
-<div class="line"><a id="l05549" name="l05549"></a><span class="lineno"> 5549</span>}</div>
-<div class="line"><a id="l05550" name="l05550"></a><span class="lineno"> 5550</span> </div>
-<div class="line"><a id="l05551" name="l05551"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ad608f9bbe76426f4fbf4bf5af908e4e0"> 5551</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad608f9bbe76426f4fbf4bf5af908e4e0">Node::receive_emptied_rcv_buf_while_disconnecting</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
-<div class="line"><a id="l05552" name="l05552"></a><span class="lineno"> 5552</span>{</div>
-<div class="line"><a id="l05553" name="l05553"></a><span class="lineno"> 5553</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l05554" name="l05554"></a><span class="lineno"> 5554</span> </div>
-<div class="line"><a id="l05555" name="l05555"></a><span class="lineno"> 5555</span>  <span class="comment">/* As always, no need to lock m_state, etc., unless we plan to alter them, since no other thread can alter them.</span></div>
-<div class="line"><a id="l05556" name="l05556"></a><span class="lineno"> 5556</span><span class="comment">   * ...On the other hand, we are going to be checking m_rcv_buf for emptiness below, and if it&#39;s not empty,</span></div>
-<div class="line"><a id="l05557" name="l05557"></a><span class="lineno"> 5557</span><span class="comment">   * a user thread U != W may be altering it right now by consuming it.  So, lock.</span></div>
-<div class="line"><a id="l05558" name="l05558"></a><span class="lineno"> 5558</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05559" name="l05559"></a><span class="lineno"> 5559</span><span class="comment">   * Could think about locking later in this function, but this is called so rarely I&#39;d rather not have to</span></div>
-<div class="line"><a id="l05560" name="l05560"></a><span class="lineno"> 5560</span><span class="comment">   * worry about whether it&#39;s OK to do that and just not. */</span></div>
-<div class="line"><a id="l05561" name="l05561"></a><span class="lineno"> 5561</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex);</div>
-<div class="line"><a id="l05562" name="l05562"></a><span class="lineno"> 5562</span> </div>
-<div class="line"><a id="l05563" name="l05563"></a><span class="lineno"> 5563</span>  <span class="keywordflow">if</span> (sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>)</div>
-<div class="line"><a id="l05564" name="l05564"></a><span class="lineno"> 5564</span>  {</div>
-<div class="line"><a id="l05565" name="l05565"></a><span class="lineno"> 5565</span>    <span class="comment">/* When were placed onto thread W, state was S_OPEN+S_DISCONNECTING, but before boost.asio</span></div>
-<div class="line"><a id="l05566" name="l05566"></a><span class="lineno"> 5566</span><span class="comment">     * could execute us, it executed another handler which already moved us to S_CLOSED for</span></div>
-<div class="line"><a id="l05567" name="l05567"></a><span class="lineno"> 5567</span><span class="comment">     * whatever reason (there are many valid ones).  So just don&#39;t do anything, as we no longer</span></div>
-<div class="line"><a id="l05568" name="l05568"></a><span class="lineno"> 5568</span><span class="comment">     * apply.  It&#39;s kind of interesting, so log INFO message. */</span></div>
-<div class="line"><a id="l05569" name="l05569"></a><span class="lineno"> 5569</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l05570" name="l05570"></a><span class="lineno"> 5570</span>                  <span class="stringliteral">&quot;was completely closed before asynchronous &quot;</span></div>
-<div class="line"><a id="l05571" name="l05571"></a><span class="lineno"> 5571</span>                  <span class="stringliteral">&quot;receive_emptied_rcv_buf_while_disconnecting() could proceed.&quot;</span>);</div>
-<div class="line"><a id="l05572" name="l05572"></a><span class="lineno"> 5572</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05573" name="l05573"></a><span class="lineno"> 5573</span>  }</div>
-<div class="line"><a id="l05574" name="l05574"></a><span class="lineno"> 5574</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l05575" name="l05575"></a><span class="lineno"> 5575</span> </div>
-<div class="line"><a id="l05576" name="l05576"></a><span class="lineno"> 5576</span>  <span class="comment">// Sanity-check (we cannot be called until there&#39;s a graceful close underway).</span></div>
-<div class="line"><a id="l05577" name="l05577"></a><span class="lineno"> 5577</span>  assert((sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>) &amp;&amp;</div>
-<div class="line"><a id="l05578" name="l05578"></a><span class="lineno"> 5578</span>         (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>));</div>
-<div class="line"><a id="l05579" name="l05579"></a><span class="lineno"> 5579</span> </div>
-<div class="line"><a id="l05580" name="l05580"></a><span class="lineno"> 5580</span>  <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a> = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">Node::socket_id</a>(sock);</div>
+<div class="line"><a id="l05546" name="l05546"></a><span class="lineno"> 5546</span>  <span class="comment">// Add the reassembly queue cumulative stored data size.  Why? See sock_data_to_reassembly_q_unless_overflow().</span></div>
+<div class="line"><a id="l05547" name="l05547"></a><span class="lineno"> 5547</span>  <span class="keywordflow">if</span> (sock-&gt;rexmit_on())</div>
+<div class="line"><a id="l05548" name="l05548"></a><span class="lineno"> 5548</span>  {</div>
+<div class="line"><a id="l05549" name="l05549"></a><span class="lineno"> 5549</span>    rcv_buf_size += sock-&gt;m_rcv_reassembly_q_data_size; <span class="comment">// (At least one reason we must be in thread W.)</span></div>
+<div class="line"><a id="l05550" name="l05550"></a><span class="lineno"> 5550</span>  }</div>
+<div class="line"><a id="l05551" name="l05551"></a><span class="lineno"> 5551</span> </div>
+<div class="line"><a id="l05552" name="l05552"></a><span class="lineno"> 5552</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> max_rcv_buf_size = sock-&gt;max_block_size_multiple(sock-&gt;m_opts.m_st_rcv_buf_max_size);</div>
+<div class="line"><a id="l05553" name="l05553"></a><span class="lineno"> 5553</span> </div>
+<div class="line"><a id="l05554" name="l05554"></a><span class="lineno"> 5554</span>  <span class="keywordflow">return</span> (max_rcv_buf_size &gt; rcv_buf_size) ? (max_rcv_buf_size - rcv_buf_size) : 0;</div>
+<div class="line"><a id="l05555" name="l05555"></a><span class="lineno"> 5555</span>}</div>
+<div class="line"><a id="l05556" name="l05556"></a><span class="lineno"> 5556</span> </div>
+<div class="line"><a id="l05557" name="l05557"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ad608f9bbe76426f4fbf4bf5af908e4e0"> 5557</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad608f9bbe76426f4fbf4bf5af908e4e0">Node::receive_emptied_rcv_buf_while_disconnecting</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
+<div class="line"><a id="l05558" name="l05558"></a><span class="lineno"> 5558</span>{</div>
+<div class="line"><a id="l05559" name="l05559"></a><span class="lineno"> 5559</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l05560" name="l05560"></a><span class="lineno"> 5560</span> </div>
+<div class="line"><a id="l05561" name="l05561"></a><span class="lineno"> 5561</span>  <span class="comment">/* As always, no need to lock m_state, etc., unless we plan to alter them, since no other thread can alter them.</span></div>
+<div class="line"><a id="l05562" name="l05562"></a><span class="lineno"> 5562</span><span class="comment">   * ...On the other hand, we are going to be checking m_rcv_buf for emptiness below, and if it&#39;s not empty,</span></div>
+<div class="line"><a id="l05563" name="l05563"></a><span class="lineno"> 5563</span><span class="comment">   * a user thread U != W may be altering it right now by consuming it.  So, lock.</span></div>
+<div class="line"><a id="l05564" name="l05564"></a><span class="lineno"> 5564</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05565" name="l05565"></a><span class="lineno"> 5565</span><span class="comment">   * Could think about locking later in this function, but this is called so rarely I&#39;d rather not have to</span></div>
+<div class="line"><a id="l05566" name="l05566"></a><span class="lineno"> 5566</span><span class="comment">   * worry about whether it&#39;s OK to do that and just not. */</span></div>
+<div class="line"><a id="l05567" name="l05567"></a><span class="lineno"> 5567</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex);</div>
+<div class="line"><a id="l05568" name="l05568"></a><span class="lineno"> 5568</span> </div>
+<div class="line"><a id="l05569" name="l05569"></a><span class="lineno"> 5569</span>  <span class="keywordflow">if</span> (sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>)</div>
+<div class="line"><a id="l05570" name="l05570"></a><span class="lineno"> 5570</span>  {</div>
+<div class="line"><a id="l05571" name="l05571"></a><span class="lineno"> 5571</span>    <span class="comment">/* When were placed onto thread W, state was S_OPEN+S_DISCONNECTING, but before boost.asio</span></div>
+<div class="line"><a id="l05572" name="l05572"></a><span class="lineno"> 5572</span><span class="comment">     * could execute us, it executed another handler which already moved us to S_CLOSED for</span></div>
+<div class="line"><a id="l05573" name="l05573"></a><span class="lineno"> 5573</span><span class="comment">     * whatever reason (there are many valid ones).  So just don&#39;t do anything, as we no longer</span></div>
+<div class="line"><a id="l05574" name="l05574"></a><span class="lineno"> 5574</span><span class="comment">     * apply.  It&#39;s kind of interesting, so log INFO message. */</span></div>
+<div class="line"><a id="l05575" name="l05575"></a><span class="lineno"> 5575</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l05576" name="l05576"></a><span class="lineno"> 5576</span>                  <span class="stringliteral">&quot;was completely closed before asynchronous &quot;</span></div>
+<div class="line"><a id="l05577" name="l05577"></a><span class="lineno"> 5577</span>                  <span class="stringliteral">&quot;receive_emptied_rcv_buf_while_disconnecting() could proceed.&quot;</span>);</div>
+<div class="line"><a id="l05578" name="l05578"></a><span class="lineno"> 5578</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05579" name="l05579"></a><span class="lineno"> 5579</span>  }</div>
+<div class="line"><a id="l05580" name="l05580"></a><span class="lineno"> 5580</span>  <span class="comment">// else</span></div>
 <div class="line"><a id="l05581" name="l05581"></a><span class="lineno"> 5581</span> </div>
-<div class="line"><a id="l05582" name="l05582"></a><span class="lineno"> 5582</span>  <span class="keywordflow">if</span> (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::Int_state::S_CLOSED</a>)</div>
-<div class="line"><a id="l05583" name="l05583"></a><span class="lineno"> 5583</span>  {</div>
-<div class="line"><a id="l05584" name="l05584"></a><span class="lineno"> 5584</span>    <span class="comment">/* Yes, they emptied Receive buffer.  However, we haven&#39;t finished the graceful close.</span></div>
-<div class="line"><a id="l05585" name="l05585"></a><span class="lineno"> 5585</span><span class="comment">     * Therefore -- even though one more barrier to reaching m_state == S_CLOSED has been removed --</span></div>
-<div class="line"><a id="l05586" name="l05586"></a><span class="lineno"> 5586</span><span class="comment">     * there&#39;s nothing further to do at this time.  In fact, in certain situations we might even</span></div>
-<div class="line"><a id="l05587" name="l05587"></a><span class="lineno"> 5587</span><span class="comment">     * get more data onto the Receive buffer!  @todo No graceful close yet. */</span></div>
-<div class="line"><a id="l05588" name="l05588"></a><span class="lineno"> 5588</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l05589" name="l05589"></a><span class="lineno"> 5589</span>                   <span class="stringliteral">&quot;is gracefully closing, and Receive buffer is empty, but graceful close itself not yet finished.&quot;</span>);</div>
-<div class="line"><a id="l05590" name="l05590"></a><span class="lineno"> 5590</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05591" name="l05591"></a><span class="lineno"> 5591</span>  }</div>
-<div class="line"><a id="l05592" name="l05592"></a><span class="lineno"> 5592</span>  <span class="comment">// else if (m_int_state == S_CLOSED)</span></div>
-<div class="line"><a id="l05593" name="l05593"></a><span class="lineno"> 5593</span> </div>
-<div class="line"><a id="l05594" name="l05594"></a><span class="lineno"> 5594</span>  <span class="comment">// Ensure Receive buffer is indeed still empty.  (Can still get data while gracefully closing.)</span></div>
-<div class="line"><a id="l05595" name="l05595"></a><span class="lineno"> 5595</span>  <span class="keywordflow">if</span> (!sock-&gt;m_rcv_buf.empty())</div>
-<div class="line"><a id="l05596" name="l05596"></a><span class="lineno"> 5596</span>  {</div>
-<div class="line"><a id="l05597" name="l05597"></a><span class="lineno"> 5597</span>    <span class="comment">/* Some data arrived between the time we were placed on thread W and boost.asio executing us.</span></div>
-<div class="line"><a id="l05598" name="l05598"></a><span class="lineno"> 5598</span><span class="comment">     * So we can&#39;t do anything; user has to receive() the stuff first, which should call us again. */</span></div>
-<div class="line"><a id="l05599" name="l05599"></a><span class="lineno"> 5599</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l05600" name="l05600"></a><span class="lineno"> 5600</span>                   <span class="stringliteral">&quot;is gracefully closing, but Receive buffer has data again.&quot;</span>);</div>
-<div class="line"><a id="l05601" name="l05601"></a><span class="lineno"> 5601</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05602" name="l05602"></a><span class="lineno"> 5602</span>  }</div>
-<div class="line"><a id="l05603" name="l05603"></a><span class="lineno"> 5603</span>  <span class="comment">// else if (m_int_state == S_CLOSED, and m_rcv_buf is empty)</span></div>
-<div class="line"><a id="l05604" name="l05604"></a><span class="lineno"> 5604</span> </div>
-<div class="line"><a id="l05605" name="l05605"></a><span class="lineno"> 5605</span>  <span class="comment">// Yes, the transport layer final handshake is finished.  Since Receive buffer now empty, no more barriers remain.</span></div>
-<div class="line"><a id="l05606" name="l05606"></a><span class="lineno"> 5606</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
-<div class="line"><a id="l05607" name="l05607"></a><span class="lineno"> 5607</span>                 <span class="stringliteral">&quot;is gracefully closing, and Receive buffer is now empty.  Ready to permanently close.&quot;</span>);</div>
-<div class="line"><a id="l05608" name="l05608"></a><span class="lineno"> 5608</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">close_connection_immediately</a>(<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>, sock,</div>
-<div class="line"><a id="l05609" name="l05609"></a><span class="lineno"> 5609</span>                               <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>(), <span class="comment">/* err_code == success indicates clean close here. */</span></div>
-<div class="line"><a id="l05610" name="l05610"></a><span class="lineno"> 5610</span>                               <span class="keyword">false</span>);</div>
-<div class="line"><a id="l05611" name="l05611"></a><span class="lineno"> 5611</span>  <span class="comment">/* ^-- defer_delta_check == false: for similar reason as when calling send_worker() from</span></div>
-<div class="line"><a id="l05612" name="l05612"></a><span class="lineno"> 5612</span><span class="comment">   * send_worker_check_state(). */</span></div>
-<div class="line"><a id="l05613" name="l05613"></a><span class="lineno"> 5613</span>} <span class="comment">// Node::receive_emptied_rcv_buf_while_disconnecting()</span></div>
-<div class="line"><a id="l05614" name="l05614"></a><span class="lineno"> 5614</span> </div>
-<div class="line"><a id="l05615" name="l05615"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a6461124e5bc3e59083e172e26029e632"> 5615</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a6461124e5bc3e59083e172e26029e632">Node::close_abruptly</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l05616" name="l05616"></a><span class="lineno"> 5616</span>{</div>
-<div class="line"><a id="l05617" name="l05617"></a><span class="lineno"> 5617</span>  <span class="keyword">using </span>boost::adopt_lock;</div>
-<div class="line"><a id="l05618" name="l05618"></a><span class="lineno"> 5618</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1async.html#a24567271e97a67d3cae6bd8bf8dc63c4">async::asio_exec_ctx_post</a>;</div>
-<div class="line"><a id="l05619" name="l05619"></a><span class="lineno"> 5619</span>  <span class="keyword">using </span><a class="code hl_enumeration" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485">async::Synchronicity</a>;</div>
+<div class="line"><a id="l05582" name="l05582"></a><span class="lineno"> 5582</span>  <span class="comment">// Sanity-check (we cannot be called until there&#39;s a graceful close underway).</span></div>
+<div class="line"><a id="l05583" name="l05583"></a><span class="lineno"> 5583</span>  assert((sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>) &amp;&amp;</div>
+<div class="line"><a id="l05584" name="l05584"></a><span class="lineno"> 5584</span>         (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>));</div>
+<div class="line"><a id="l05585" name="l05585"></a><span class="lineno"> 5585</span> </div>
+<div class="line"><a id="l05586" name="l05586"></a><span class="lineno"> 5586</span>  <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a> = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">Node::socket_id</a>(sock);</div>
+<div class="line"><a id="l05587" name="l05587"></a><span class="lineno"> 5587</span> </div>
+<div class="line"><a id="l05588" name="l05588"></a><span class="lineno"> 5588</span>  <span class="keywordflow">if</span> (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::Int_state::S_CLOSED</a>)</div>
+<div class="line"><a id="l05589" name="l05589"></a><span class="lineno"> 5589</span>  {</div>
+<div class="line"><a id="l05590" name="l05590"></a><span class="lineno"> 5590</span>    <span class="comment">/* Yes, they emptied Receive buffer.  However, we haven&#39;t finished the graceful close.</span></div>
+<div class="line"><a id="l05591" name="l05591"></a><span class="lineno"> 5591</span><span class="comment">     * Therefore -- even though one more barrier to reaching m_state == S_CLOSED has been removed --</span></div>
+<div class="line"><a id="l05592" name="l05592"></a><span class="lineno"> 5592</span><span class="comment">     * there&#39;s nothing further to do at this time.  In fact, in certain situations we might even</span></div>
+<div class="line"><a id="l05593" name="l05593"></a><span class="lineno"> 5593</span><span class="comment">     * get more data onto the Receive buffer!  @todo No graceful close yet. */</span></div>
+<div class="line"><a id="l05594" name="l05594"></a><span class="lineno"> 5594</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l05595" name="l05595"></a><span class="lineno"> 5595</span>                   <span class="stringliteral">&quot;is gracefully closing, and Receive buffer is empty, but graceful close itself not yet finished.&quot;</span>);</div>
+<div class="line"><a id="l05596" name="l05596"></a><span class="lineno"> 5596</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05597" name="l05597"></a><span class="lineno"> 5597</span>  }</div>
+<div class="line"><a id="l05598" name="l05598"></a><span class="lineno"> 5598</span>  <span class="comment">// else if (m_int_state == S_CLOSED)</span></div>
+<div class="line"><a id="l05599" name="l05599"></a><span class="lineno"> 5599</span> </div>
+<div class="line"><a id="l05600" name="l05600"></a><span class="lineno"> 5600</span>  <span class="comment">// Ensure Receive buffer is indeed still empty.  (Can still get data while gracefully closing.)</span></div>
+<div class="line"><a id="l05601" name="l05601"></a><span class="lineno"> 5601</span>  <span class="keywordflow">if</span> (!sock-&gt;m_rcv_buf.empty())</div>
+<div class="line"><a id="l05602" name="l05602"></a><span class="lineno"> 5602</span>  {</div>
+<div class="line"><a id="l05603" name="l05603"></a><span class="lineno"> 5603</span>    <span class="comment">/* Some data arrived between the time we were placed on thread W and boost.asio executing us.</span></div>
+<div class="line"><a id="l05604" name="l05604"></a><span class="lineno"> 5604</span><span class="comment">     * So we can&#39;t do anything; user has to receive() the stuff first, which should call us again. */</span></div>
+<div class="line"><a id="l05605" name="l05605"></a><span class="lineno"> 5605</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l05606" name="l05606"></a><span class="lineno"> 5606</span>                   <span class="stringliteral">&quot;is gracefully closing, but Receive buffer has data again.&quot;</span>);</div>
+<div class="line"><a id="l05607" name="l05607"></a><span class="lineno"> 5607</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05608" name="l05608"></a><span class="lineno"> 5608</span>  }</div>
+<div class="line"><a id="l05609" name="l05609"></a><span class="lineno"> 5609</span>  <span class="comment">// else if (m_int_state == S_CLOSED, and m_rcv_buf is empty)</span></div>
+<div class="line"><a id="l05610" name="l05610"></a><span class="lineno"> 5610</span> </div>
+<div class="line"><a id="l05611" name="l05611"></a><span class="lineno"> 5611</span>  <span class="comment">// Yes, the transport layer final handshake is finished.  Since Receive buffer now empty, no more barriers remain.</span></div>
+<div class="line"><a id="l05612" name="l05612"></a><span class="lineno"> 5612</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] &quot;</span></div>
+<div class="line"><a id="l05613" name="l05613"></a><span class="lineno"> 5613</span>                 <span class="stringliteral">&quot;is gracefully closing, and Receive buffer is now empty.  Ready to permanently close.&quot;</span>);</div>
+<div class="line"><a id="l05614" name="l05614"></a><span class="lineno"> 5614</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">close_connection_immediately</a>(<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>, sock,</div>
+<div class="line"><a id="l05615" name="l05615"></a><span class="lineno"> 5615</span>                               <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>(), <span class="comment">/* err_code == success indicates clean close here. */</span></div>
+<div class="line"><a id="l05616" name="l05616"></a><span class="lineno"> 5616</span>                               <span class="keyword">false</span>);</div>
+<div class="line"><a id="l05617" name="l05617"></a><span class="lineno"> 5617</span>  <span class="comment">/* ^-- defer_delta_check == false: for similar reason as when calling send_worker() from</span></div>
+<div class="line"><a id="l05618" name="l05618"></a><span class="lineno"> 5618</span><span class="comment">   * send_worker_check_state(). */</span></div>
+<div class="line"><a id="l05619" name="l05619"></a><span class="lineno"> 5619</span>} <span class="comment">// Node::receive_emptied_rcv_buf_while_disconnecting()</span></div>
 <div class="line"><a id="l05620" name="l05620"></a><span class="lineno"> 5620</span> </div>
-<div class="line"><a id="l05621" name="l05621"></a><span class="lineno"> 5621</span>  <span class="comment">/* We are in user thread U != W.</span></div>
-<div class="line"><a id="l05622" name="l05622"></a><span class="lineno"> 5622</span><span class="comment">   * It&#39;s important to keep that in mind in this method.  In particular, it is absolutely unsafe to</span></div>
-<div class="line"><a id="l05623" name="l05623"></a><span class="lineno"> 5623</span><span class="comment">   * access m_int_state, which belongs solely to thread W and is never locked. */</span></div>
-<div class="line"><a id="l05624" name="l05624"></a><span class="lineno"> 5624</span> </div>
-<div class="line"><a id="l05625" name="l05625"></a><span class="lineno"> 5625</span>  {</div>
-<div class="line"><a id="l05626" name="l05626"></a><span class="lineno"> 5626</span>    <span class="comment">/* WARNING!!!  sock-&gt;m_mutex is locked, but WE must unlock it before returning!  Can&#39;t leave that</span></div>
-<div class="line"><a id="l05627" name="l05627"></a><span class="lineno"> 5627</span><span class="comment">     * to the caller, because we must unlock at a specific point below, right before post()ing</span></div>
-<div class="line"><a id="l05628" name="l05628"></a><span class="lineno"> 5628</span><span class="comment">     * close_abruptly_worker() onto thread W.  Use a Lock_guard that adopts an</span></div>
-<div class="line"><a id="l05629" name="l05629"></a><span class="lineno"> 5629</span><span class="comment">     * already-locked mutex. */</span></div>
-<div class="line"><a id="l05630" name="l05630"></a><span class="lineno"> 5630</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex, adopt_lock);</div>
-<div class="line"><a id="l05631" name="l05631"></a><span class="lineno"> 5631</span> </div>
-<div class="line"><a id="l05632" name="l05632"></a><span class="lineno"> 5632</span>    <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">running</a>())</div>
-<div class="line"><a id="l05633" name="l05633"></a><span class="lineno"> 5633</span>    {</div>
-<div class="line"><a id="l05634" name="l05634"></a><span class="lineno"> 5634</span>      <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>);</div>
-<div class="line"><a id="l05635" name="l05635"></a><span class="lineno"> 5635</span>      <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05636" name="l05636"></a><span class="lineno"> 5636</span>    }</div>
-<div class="line"><a id="l05637" name="l05637"></a><span class="lineno"> 5637</span>    <span class="comment">// else</span></div>
-<div class="line"><a id="l05638" name="l05638"></a><span class="lineno"> 5638</span> </div>
-<div class="line"><a id="l05639" name="l05639"></a><span class="lineno"> 5639</span>    <span class="comment">// Pre-condition.</span></div>
-<div class="line"><a id="l05640" name="l05640"></a><span class="lineno"> 5640</span>    assert(sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>);</div>
-<div class="line"><a id="l05641" name="l05641"></a><span class="lineno"> 5641</span> </div>
-<div class="line"><a id="l05642" name="l05642"></a><span class="lineno"> 5642</span>    <span class="comment">/* Put the rest of the work into thread W.  For justification, see big comment in listen().</span></div>
-<div class="line"><a id="l05643" name="l05643"></a><span class="lineno"> 5643</span><span class="comment">     * Addendum regarding performance: close_abruptly() is probably called more frequently than</span></div>
-<div class="line"><a id="l05644" name="l05644"></a><span class="lineno"> 5644</span><span class="comment">     * listen(), but I doubt the performance impact is serious even so.  send() and receive() might be</span></div>
-<div class="line"><a id="l05645" name="l05645"></a><span class="lineno"> 5645</span><span class="comment">     * a different story. */</span></div>
-<div class="line"><a id="l05646" name="l05646"></a><span class="lineno"> 5646</span> </div>
-<div class="line"><a id="l05647" name="l05647"></a><span class="lineno"> 5647</span>    <span class="comment">// We&#39;re done -- must unlock so that thread W can do what it wants to with sock.</span></div>
-<div class="line"><a id="l05648" name="l05648"></a><span class="lineno"> 5648</span>  } <span class="comment">// lock</span></div>
-<div class="line"><a id="l05649" name="l05649"></a><span class="lineno"> 5649</span> </div>
-<div class="line"><a id="l05650" name="l05650"></a><span class="lineno"> 5650</span>  <span class="comment">// Load this onto thread W boost.asio work queue.  We don&#39;t return until it runs, so [&amp;].</span></div>
-<div class="line"><a id="l05651" name="l05651"></a><span class="lineno"> 5651</span>  <a class="code hl_function" href="namespaceflow_1_1async.html#a24567271e97a67d3cae6bd8bf8dc63c4">asio_exec_ctx_post</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), &amp;<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>, Synchronicity::S_ASYNC_AND_AWAIT_CONCURRENT_COMPLETION, [&amp;]()</div>
-<div class="line"><a id="l05652" name="l05652"></a><span class="lineno"> 5652</span>  {</div>
-<div class="line"><a id="l05653" name="l05653"></a><span class="lineno"> 5653</span>    <span class="comment">// We are in thread W.  Thread U is waiting for us to do our stuff and return.</span></div>
-<div class="line"><a id="l05654" name="l05654"></a><span class="lineno"> 5654</span> </div>
-<div class="line"><a id="l05655" name="l05655"></a><span class="lineno"> 5655</span>    <span class="comment">/* Since we were placed onto thread W, another handler may have been executed before boost.asio</span></div>
-<div class="line"><a id="l05656" name="l05656"></a><span class="lineno"> 5656</span><span class="comment">     * got to us.  Therefore we may already be S_CLOSED.  Detect this. */</span></div>
-<div class="line"><a id="l05657" name="l05657"></a><span class="lineno"> 5657</span> </div>
-<div class="line"><a id="l05658" name="l05658"></a><span class="lineno"> 5658</span>    <span class="keywordflow">if</span> (sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>) <span class="comment">// No need to lock: only W can write to this.</span></div>
-<div class="line"><a id="l05659" name="l05659"></a><span class="lineno"> 5659</span>    {</div>
-<div class="line"><a id="l05660" name="l05660"></a><span class="lineno"> 5660</span>      <span class="comment">// Yep, already closed.  sock-&gt;m_disconnect_cause is already set to closure reason.  Done.</span></div>
-<div class="line"><a id="l05661" name="l05661"></a><span class="lineno"> 5661</span>      *err_code = sock-&gt;m_disconnect_cause;</div>
-<div class="line"><a id="l05662" name="l05662"></a><span class="lineno"> 5662</span>      return;</div>
-<div class="line"><a id="l05663" name="l05663"></a><span class="lineno"> 5663</span>    }</div>
-<div class="line"><a id="l05664" name="l05664"></a><span class="lineno"> 5664</span>    <span class="comment">// else</span></div>
-<div class="line"><a id="l05665" name="l05665"></a><span class="lineno"> 5665</span> </div>
-<div class="line"><a id="l05666" name="l05666"></a><span class="lineno"> 5666</span>    <span class="comment">/* Cool, we&#39;re not quite closed yet.  We could be connecting... or connected... or even in the</span></div>
-<div class="line"><a id="l05667" name="l05667"></a><span class="lineno"> 5667</span><span class="comment">     * middle of graceful close (@todo that&#39;s not yet implemented).  Any of those situations allow</span></div>
-<div class="line"><a id="l05668" name="l05668"></a><span class="lineno"> 5668</span><span class="comment">     * close_abruptly(), just as (indeed because of the fact that) any of those situations allow</span></div>
-<div class="line"><a id="l05669" name="l05669"></a><span class="lineno"> 5669</span><span class="comment">     * close_connection_immediately() (..., error::...).</span></div>
-<div class="line"><a id="l05670" name="l05670"></a><span class="lineno"> 5670</span><span class="comment">     *</span></div>
-<div class="line"><a id="l05671" name="l05671"></a><span class="lineno"> 5671</span><span class="comment">     * Therefore simply do the following.  Pre-conditions hold: sock is in m_socks and is S_OPEN</span></div>
-<div class="line"><a id="l05672" name="l05672"></a><span class="lineno"> 5672</span><span class="comment">     * (because not S_CLOSED); 3rd arg contains failure reason. */</span></div>
-<div class="line"><a id="l05673" name="l05673"></a><span class="lineno"> 5673</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">rst_and_close_connection_immediately</a>(<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>(sock), sock, <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a35606f4143e15dbe6bc03a543599dec8">error::Code::S_USER_CLOSED_ABRUPTLY</a>, <span class="keyword">false</span>);</div>
-<div class="line"><a id="l05674" name="l05674"></a><span class="lineno"> 5674</span>    <span class="comment">/* ^-- defer_delta_check == false: for similar reason as when calling send_worker() from</span></div>
-<div class="line"><a id="l05675" name="l05675"></a><span class="lineno"> 5675</span><span class="comment">     * send_worker_check_state(). */</span></div>
-<div class="line"><a id="l05676" name="l05676"></a><span class="lineno"> 5676</span> </div>
-<div class="line"><a id="l05677" name="l05677"></a><span class="lineno"> 5677</span>    <span class="comment">// That set sock-&gt;m_disconnect_cause.  Closure successful.  Done.</span></div>
-<div class="line"><a id="l05678" name="l05678"></a><span class="lineno"> 5678</span>    err_code-&gt;clear(); <span class="comment">// Success.</span></div>
-<div class="line"><a id="l05679" name="l05679"></a><span class="lineno"> 5679</span>  }); <span class="comment">// asio_exec_ctx_post()</span></div>
-<div class="line"><a id="l05680" name="l05680"></a><span class="lineno"> 5680</span>  <span class="comment">// If got here, the task has completed in thread W and signaled us to that effect.</span></div>
-<div class="line"><a id="l05681" name="l05681"></a><span class="lineno"> 5681</span>} <span class="comment">// Node::close_abruptly()</span></div>
+<div class="line"><a id="l05621" name="l05621"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a6461124e5bc3e59083e172e26029e632"> 5621</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a6461124e5bc3e59083e172e26029e632">Node::close_abruptly</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l05622" name="l05622"></a><span class="lineno"> 5622</span>{</div>
+<div class="line"><a id="l05623" name="l05623"></a><span class="lineno"> 5623</span>  <span class="keyword">using </span>boost::adopt_lock;</div>
+<div class="line"><a id="l05624" name="l05624"></a><span class="lineno"> 5624</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1async.html#a24567271e97a67d3cae6bd8bf8dc63c4">async::asio_exec_ctx_post</a>;</div>
+<div class="line"><a id="l05625" name="l05625"></a><span class="lineno"> 5625</span>  <span class="keyword">using </span><a class="code hl_enumeration" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485">async::Synchronicity</a>;</div>
+<div class="line"><a id="l05626" name="l05626"></a><span class="lineno"> 5626</span> </div>
+<div class="line"><a id="l05627" name="l05627"></a><span class="lineno"> 5627</span>  <span class="comment">/* We are in user thread U != W.</span></div>
+<div class="line"><a id="l05628" name="l05628"></a><span class="lineno"> 5628</span><span class="comment">   * It&#39;s important to keep that in mind in this method.  In particular, it is absolutely unsafe to</span></div>
+<div class="line"><a id="l05629" name="l05629"></a><span class="lineno"> 5629</span><span class="comment">   * access m_int_state, which belongs solely to thread W and is never locked. */</span></div>
+<div class="line"><a id="l05630" name="l05630"></a><span class="lineno"> 5630</span> </div>
+<div class="line"><a id="l05631" name="l05631"></a><span class="lineno"> 5631</span>  {</div>
+<div class="line"><a id="l05632" name="l05632"></a><span class="lineno"> 5632</span>    <span class="comment">/* WARNING!!!  sock-&gt;m_mutex is locked, but WE must unlock it before returning!  Can&#39;t leave that</span></div>
+<div class="line"><a id="l05633" name="l05633"></a><span class="lineno"> 5633</span><span class="comment">     * to the caller, because we must unlock at a specific point below, right before post()ing</span></div>
+<div class="line"><a id="l05634" name="l05634"></a><span class="lineno"> 5634</span><span class="comment">     * close_abruptly_worker() onto thread W.  Use a Lock_guard that adopts an</span></div>
+<div class="line"><a id="l05635" name="l05635"></a><span class="lineno"> 5635</span><span class="comment">     * already-locked mutex. */</span></div>
+<div class="line"><a id="l05636" name="l05636"></a><span class="lineno"> 5636</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex, adopt_lock);</div>
+<div class="line"><a id="l05637" name="l05637"></a><span class="lineno"> 5637</span> </div>
+<div class="line"><a id="l05638" name="l05638"></a><span class="lineno"> 5638</span>    <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">running</a>())</div>
+<div class="line"><a id="l05639" name="l05639"></a><span class="lineno"> 5639</span>    {</div>
+<div class="line"><a id="l05640" name="l05640"></a><span class="lineno"> 5640</span>      <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>);</div>
+<div class="line"><a id="l05641" name="l05641"></a><span class="lineno"> 5641</span>      <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05642" name="l05642"></a><span class="lineno"> 5642</span>    }</div>
+<div class="line"><a id="l05643" name="l05643"></a><span class="lineno"> 5643</span>    <span class="comment">// else</span></div>
+<div class="line"><a id="l05644" name="l05644"></a><span class="lineno"> 5644</span> </div>
+<div class="line"><a id="l05645" name="l05645"></a><span class="lineno"> 5645</span>    <span class="comment">// Pre-condition.</span></div>
+<div class="line"><a id="l05646" name="l05646"></a><span class="lineno"> 5646</span>    assert(sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>);</div>
+<div class="line"><a id="l05647" name="l05647"></a><span class="lineno"> 5647</span> </div>
+<div class="line"><a id="l05648" name="l05648"></a><span class="lineno"> 5648</span>    <span class="comment">/* Put the rest of the work into thread W.  For justification, see big comment in listen().</span></div>
+<div class="line"><a id="l05649" name="l05649"></a><span class="lineno"> 5649</span><span class="comment">     * Addendum regarding performance: close_abruptly() is probably called more frequently than</span></div>
+<div class="line"><a id="l05650" name="l05650"></a><span class="lineno"> 5650</span><span class="comment">     * listen(), but I doubt the performance impact is serious even so.  send() and receive() might be</span></div>
+<div class="line"><a id="l05651" name="l05651"></a><span class="lineno"> 5651</span><span class="comment">     * a different story. */</span></div>
+<div class="line"><a id="l05652" name="l05652"></a><span class="lineno"> 5652</span> </div>
+<div class="line"><a id="l05653" name="l05653"></a><span class="lineno"> 5653</span>    <span class="comment">// We&#39;re done -- must unlock so that thread W can do what it wants to with sock.</span></div>
+<div class="line"><a id="l05654" name="l05654"></a><span class="lineno"> 5654</span>  } <span class="comment">// lock</span></div>
+<div class="line"><a id="l05655" name="l05655"></a><span class="lineno"> 5655</span> </div>
+<div class="line"><a id="l05656" name="l05656"></a><span class="lineno"> 5656</span>  <span class="comment">// Load this onto thread W boost.asio work queue.  We don&#39;t return until it runs, so [&amp;].</span></div>
+<div class="line"><a id="l05657" name="l05657"></a><span class="lineno"> 5657</span>  <a class="code hl_function" href="namespaceflow_1_1async.html#a24567271e97a67d3cae6bd8bf8dc63c4">asio_exec_ctx_post</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), &amp;<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>, Synchronicity::S_ASYNC_AND_AWAIT_CONCURRENT_COMPLETION, [&amp;]()</div>
+<div class="line"><a id="l05658" name="l05658"></a><span class="lineno"> 5658</span>  {</div>
+<div class="line"><a id="l05659" name="l05659"></a><span class="lineno"> 5659</span>    <span class="comment">// We are in thread W.  Thread U is waiting for us to do our stuff and return.</span></div>
+<div class="line"><a id="l05660" name="l05660"></a><span class="lineno"> 5660</span> </div>
+<div class="line"><a id="l05661" name="l05661"></a><span class="lineno"> 5661</span>    <span class="comment">/* Since we were placed onto thread W, another handler may have been executed before boost.asio</span></div>
+<div class="line"><a id="l05662" name="l05662"></a><span class="lineno"> 5662</span><span class="comment">     * got to us.  Therefore we may already be S_CLOSED.  Detect this. */</span></div>
+<div class="line"><a id="l05663" name="l05663"></a><span class="lineno"> 5663</span> </div>
+<div class="line"><a id="l05664" name="l05664"></a><span class="lineno"> 5664</span>    <span class="keywordflow">if</span> (sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>) <span class="comment">// No need to lock: only W can write to this.</span></div>
+<div class="line"><a id="l05665" name="l05665"></a><span class="lineno"> 5665</span>    {</div>
+<div class="line"><a id="l05666" name="l05666"></a><span class="lineno"> 5666</span>      <span class="comment">// Yep, already closed.  sock-&gt;m_disconnect_cause is already set to closure reason.  Done.</span></div>
+<div class="line"><a id="l05667" name="l05667"></a><span class="lineno"> 5667</span>      *err_code = sock-&gt;m_disconnect_cause;</div>
+<div class="line"><a id="l05668" name="l05668"></a><span class="lineno"> 5668</span>      return;</div>
+<div class="line"><a id="l05669" name="l05669"></a><span class="lineno"> 5669</span>    }</div>
+<div class="line"><a id="l05670" name="l05670"></a><span class="lineno"> 5670</span>    <span class="comment">// else</span></div>
+<div class="line"><a id="l05671" name="l05671"></a><span class="lineno"> 5671</span> </div>
+<div class="line"><a id="l05672" name="l05672"></a><span class="lineno"> 5672</span>    <span class="comment">/* Cool, we&#39;re not quite closed yet.  We could be connecting... or connected... or even in the</span></div>
+<div class="line"><a id="l05673" name="l05673"></a><span class="lineno"> 5673</span><span class="comment">     * middle of graceful close (@todo that&#39;s not yet implemented).  Any of those situations allow</span></div>
+<div class="line"><a id="l05674" name="l05674"></a><span class="lineno"> 5674</span><span class="comment">     * close_abruptly(), just as (indeed because of the fact that) any of those situations allow</span></div>
+<div class="line"><a id="l05675" name="l05675"></a><span class="lineno"> 5675</span><span class="comment">     * close_connection_immediately() (..., error::...).</span></div>
+<div class="line"><a id="l05676" name="l05676"></a><span class="lineno"> 5676</span><span class="comment">     *</span></div>
+<div class="line"><a id="l05677" name="l05677"></a><span class="lineno"> 5677</span><span class="comment">     * Therefore simply do the following.  Pre-conditions hold: sock is in m_socks and is S_OPEN</span></div>
+<div class="line"><a id="l05678" name="l05678"></a><span class="lineno"> 5678</span><span class="comment">     * (because not S_CLOSED); 3rd arg contains failure reason. */</span></div>
+<div class="line"><a id="l05679" name="l05679"></a><span class="lineno"> 5679</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">rst_and_close_connection_immediately</a>(<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>(sock), sock, <a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482a35606f4143e15dbe6bc03a543599dec8">error::Code::S_USER_CLOSED_ABRUPTLY</a>, <span class="keyword">false</span>);</div>
+<div class="line"><a id="l05680" name="l05680"></a><span class="lineno"> 5680</span>    <span class="comment">/* ^-- defer_delta_check == false: for similar reason as when calling send_worker() from</span></div>
+<div class="line"><a id="l05681" name="l05681"></a><span class="lineno"> 5681</span><span class="comment">     * send_worker_check_state(). */</span></div>
 <div class="line"><a id="l05682" name="l05682"></a><span class="lineno"> 5682</span> </div>
-<div class="line"><a id="l05683" name="l05683"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177"> 5683</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">Node::close_connection_immediately</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
-<div class="line"><a id="l05684" name="l05684"></a><span class="lineno"> 5684</span>                                        <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>&amp; err_code, <span class="keywordtype">bool</span> defer_delta_check)</div>
-<div class="line"><a id="l05685" name="l05685"></a><span class="lineno"> 5685</span>{</div>
-<div class="line"><a id="l05686" name="l05686"></a><span class="lineno"> 5686</span>  <span class="keyword">using </span>boost::lexical_cast;</div>
-<div class="line"><a id="l05687" name="l05687"></a><span class="lineno"> 5687</span>  <span class="keyword">using </span>std::string;</div>
+<div class="line"><a id="l05683" name="l05683"></a><span class="lineno"> 5683</span>    <span class="comment">// That set sock-&gt;m_disconnect_cause.  Closure successful.  Done.</span></div>
+<div class="line"><a id="l05684" name="l05684"></a><span class="lineno"> 5684</span>    err_code-&gt;clear(); <span class="comment">// Success.</span></div>
+<div class="line"><a id="l05685" name="l05685"></a><span class="lineno"> 5685</span>  }); <span class="comment">// asio_exec_ctx_post()</span></div>
+<div class="line"><a id="l05686" name="l05686"></a><span class="lineno"> 5686</span>  <span class="comment">// If got here, the task has completed in thread W and signaled us to that effect.</span></div>
+<div class="line"><a id="l05687" name="l05687"></a><span class="lineno"> 5687</span>} <span class="comment">// Node::close_abruptly()</span></div>
 <div class="line"><a id="l05688" name="l05688"></a><span class="lineno"> 5688</span> </div>
-<div class="line"><a id="l05689" name="l05689"></a><span class="lineno"> 5689</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l05690" name="l05690"></a><span class="lineno"> 5690</span> </div>
-<div class="line"><a id="l05691" name="l05691"></a><span class="lineno"> 5691</span>  <span class="comment">// @todo OK if a graceful close (S_OPEN+S_DISCONNECTING) is already in progress?  Below provides for it, but ensure.</span></div>
-<div class="line"><a id="l05692" name="l05692"></a><span class="lineno"> 5692</span>  assert(sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>);</div>
-<div class="line"><a id="l05693" name="l05693"></a><span class="lineno"> 5693</span> </div>
-<div class="line"><a id="l05694" name="l05694"></a><span class="lineno"> 5694</span>  <span class="keywordflow">if</span> (err_code)</div>
-<div class="line"><a id="l05695" name="l05695"></a><span class="lineno"> 5695</span>  {</div>
-<div class="line"><a id="l05696" name="l05696"></a><span class="lineno"> 5696</span>    <a class="code hl_define" href="error_2error_8hpp.html#a5d44fa375b0080a95f45f664c0407c72">FLOW_ERROR_LOG_ERROR</a>(err_code);</div>
-<div class="line"><a id="l05697" name="l05697"></a><span class="lineno"> 5697</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Closing and destroying [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] abruptly.&quot;</span>);</div>
-<div class="line"><a id="l05698" name="l05698"></a><span class="lineno"> 5698</span>  }</div>
-<div class="line"><a id="l05699" name="l05699"></a><span class="lineno"> 5699</span>  <span class="keywordflow">else</span></div>
-<div class="line"><a id="l05700" name="l05700"></a><span class="lineno"> 5700</span>  {</div>
-<div class="line"><a id="l05701" name="l05701"></a><span class="lineno"> 5701</span>    <span class="comment">// m_disconnect_cause has already been set and logged.</span></div>
-<div class="line"><a id="l05702" name="l05702"></a><span class="lineno"> 5702</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Closing and destroying [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] after graceful close.&quot;</span>);</div>
-<div class="line"><a id="l05703" name="l05703"></a><span class="lineno"> 5703</span>  }</div>
-<div class="line"><a id="l05704" name="l05704"></a><span class="lineno"> 5704</span>  <span class="comment">// Log final state report.</span></div>
-<div class="line"><a id="l05705" name="l05705"></a><span class="lineno"> 5705</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a755c329b9e0f2b8edb2e5b900bd2a337">sock_log_detail</a>(sock);</div>
-<div class="line"><a id="l05706" name="l05706"></a><span class="lineno"> 5706</span> </div>
-<div class="line"><a id="l05707" name="l05707"></a><span class="lineno"> 5707</span>  <span class="comment">/* Thread safety: we&#39;re in thread W, so no need to lock things by default (as most resources can</span></div>
-<div class="line"><a id="l05708" name="l05708"></a><span class="lineno"> 5708</span><span class="comment">   * also only be accessed from thread W).  Exceptions are certain data members in Peer_socket</span></div>
-<div class="line"><a id="l05709" name="l05709"></a><span class="lineno"> 5709</span><span class="comment">   * sock and Server_socket serv that may have originated it (if it was a passive open).  I will</span></div>
-<div class="line"><a id="l05710" name="l05710"></a><span class="lineno"> 5710</span><span class="comment">   * comment on the locking situation for those data members as they come up in the code. */</span></div>
-<div class="line"><a id="l05711" name="l05711"></a><span class="lineno"> 5711</span> </div>
-<div class="line"><a id="l05712" name="l05712"></a><span class="lineno"> 5712</span>  <span class="comment">// First, set various state in *sock (including emptying Send and Receive buffers and setting m_node = 0).</span></div>
-<div class="line"><a id="l05713" name="l05713"></a><span class="lineno"> 5713</span> </div>
-<div class="line"><a id="l05714" name="l05714"></a><span class="lineno"> 5714</span>  <span class="comment">/* Save the final set of stats for Peer_socket::info(), as the source data will probably get</span></div>
-<div class="line"><a id="l05715" name="l05715"></a><span class="lineno"> 5715</span><span class="comment">   * purged just below in sock_disconnect_*(). */</span></div>
-<div class="line"><a id="l05716" name="l05716"></a><span class="lineno"> 5716</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">sock_load_info_struct</a>(sock, &amp;sock-&gt;m_info_on_close);</div>
-<div class="line"><a id="l05717" name="l05717"></a><span class="lineno"> 5717</span>  <span class="comment">// We may have to massage it a little more, because some info is set below, by when it&#39;s too late.</span></div>
-<div class="line"><a id="l05718" name="l05718"></a><span class="lineno"> 5718</span> </div>
-<div class="line"><a id="l05719" name="l05719"></a><span class="lineno"> 5719</span>  <span class="keywordflow">if</span> (err_code)</div>
-<div class="line"><a id="l05720" name="l05720"></a><span class="lineno"> 5720</span>  {</div>
-<div class="line"><a id="l05721" name="l05721"></a><span class="lineno"> 5721</span>    <span class="comment">// sock-&gt;m_disconnect_cause has not yet been set; so sock_load_info_struct() did not copy it properly yet.  Do so.</span></div>
-<div class="line"><a id="l05722" name="l05722"></a><span class="lineno"> 5722</span>    sock-&gt;m_info_on_close.m_disconnect_cause = err_code;</div>
-<div class="line"><a id="l05723" name="l05723"></a><span class="lineno"> 5723</span>    <span class="comment">// Similarly:</span></div>
-<div class="line"><a id="l05724" name="l05724"></a><span class="lineno"> 5724</span>    sock-&gt;m_info_on_close.m_int_state_str = lexical_cast&lt;string&gt;(<a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::Int_state::S_CLOSED</a>);</div>
-<div class="line"><a id="l05725" name="l05725"></a><span class="lineno"> 5725</span> </div>
-<div class="line"><a id="l05726" name="l05726"></a><span class="lineno"> 5726</span>    <span class="comment">/* This is an abrupt close.  This can be called in any situation once sock is in m_socks.  It&#39;s</span></div>
-<div class="line"><a id="l05727" name="l05727"></a><span class="lineno"> 5727</span><span class="comment">     * our responsibility to move directly to transport layer state S_CLOSED and user state</span></div>
-<div class="line"><a id="l05728" name="l05728"></a><span class="lineno"> 5728</span><span class="comment">     * S_CLOSED. */</span></div>
-<div class="line"><a id="l05729" name="l05729"></a><span class="lineno"> 5729</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa1d9656e9e1480021c87530ec6dbebbe">sock_set_int_state</a>(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::Int_state::S_CLOSED</a>); <span class="comment">// Thread W access only; no need to lock.</span></div>
-<div class="line"><a id="l05730" name="l05730"></a><span class="lineno"> 5730</span>    <span class="comment">// Sets S_CLOSED public state (and related data, including m_disconnect_cause).  Locked inside.</span></div>
-<div class="line"><a id="l05731" name="l05731"></a><span class="lineno"> 5731</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ada9357f6ce9d5fc249b1cc176afdc471">sock_disconnect_detected</a>(sock, err_code, <span class="keyword">true</span>);</div>
-<div class="line"><a id="l05732" name="l05732"></a><span class="lineno"> 5732</span>  }</div>
-<div class="line"><a id="l05733" name="l05733"></a><span class="lineno"> 5733</span>  <span class="keywordflow">else</span></div>
-<div class="line"><a id="l05734" name="l05734"></a><span class="lineno"> 5734</span>  {</div>
-<div class="line"><a id="l05735" name="l05735"></a><span class="lineno"> 5735</span>    <span class="comment">/* We are in a graceful close and have reached the final stage of it (connection entirely</span></div>
-<div class="line"><a id="l05736" name="l05736"></a><span class="lineno"> 5736</span><span class="comment">     * closed without having to abruptly close; buffers emptied gracefully by user and/or Node).</span></div>
-<div class="line"><a id="l05737" name="l05737"></a><span class="lineno"> 5737</span><span class="comment">     * Therefore m_int_state is already S_CLOSED (method pre-condition), so</span></div>
-<div class="line"><a id="l05738" name="l05738"></a><span class="lineno"> 5738</span><span class="comment">     * we just complete the user-visible state change. */</span></div>
-<div class="line"><a id="l05739" name="l05739"></a><span class="lineno"> 5739</span> </div>
-<div class="line"><a id="l05740" name="l05740"></a><span class="lineno"> 5740</span>    assert(sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::Int_state::S_CLOSED</a>); <span class="comment">// Thread W access only; no need to lock.</span></div>
-<div class="line"><a id="l05741" name="l05741"></a><span class="lineno"> 5741</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ade529b5452c9fe363ae468346e662ceb">sock_disconnect_completed</a>(sock); <span class="comment">// Sets S_CLOSED public state (and related data).  Locked inside.</span></div>
-<div class="line"><a id="l05742" name="l05742"></a><span class="lineno"> 5742</span>  }</div>
-<div class="line"><a id="l05743" name="l05743"></a><span class="lineno"> 5743</span> </div>
-<div class="line"><a id="l05744" name="l05744"></a><span class="lineno"> 5744</span>  <span class="comment">// Next, remove sock from our main socket list.</span></div>
+<div class="line"><a id="l05689" name="l05689"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177"> 5689</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">Node::close_connection_immediately</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
+<div class="line"><a id="l05690" name="l05690"></a><span class="lineno"> 5690</span>                                        <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>&amp; err_code, <span class="keywordtype">bool</span> defer_delta_check)</div>
+<div class="line"><a id="l05691" name="l05691"></a><span class="lineno"> 5691</span>{</div>
+<div class="line"><a id="l05692" name="l05692"></a><span class="lineno"> 5692</span>  <span class="keyword">using </span>boost::lexical_cast;</div>
+<div class="line"><a id="l05693" name="l05693"></a><span class="lineno"> 5693</span>  <span class="keyword">using </span>std::string;</div>
+<div class="line"><a id="l05694" name="l05694"></a><span class="lineno"> 5694</span> </div>
+<div class="line"><a id="l05695" name="l05695"></a><span class="lineno"> 5695</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l05696" name="l05696"></a><span class="lineno"> 5696</span> </div>
+<div class="line"><a id="l05697" name="l05697"></a><span class="lineno"> 5697</span>  <span class="comment">// @todo OK if a graceful close (S_OPEN+S_DISCONNECTING) is already in progress?  Below provides for it, but ensure.</span></div>
+<div class="line"><a id="l05698" name="l05698"></a><span class="lineno"> 5698</span>  assert(sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>);</div>
+<div class="line"><a id="l05699" name="l05699"></a><span class="lineno"> 5699</span> </div>
+<div class="line"><a id="l05700" name="l05700"></a><span class="lineno"> 5700</span>  <span class="keywordflow">if</span> (err_code)</div>
+<div class="line"><a id="l05701" name="l05701"></a><span class="lineno"> 5701</span>  {</div>
+<div class="line"><a id="l05702" name="l05702"></a><span class="lineno"> 5702</span>    <a class="code hl_define" href="error_2error_8hpp.html#a5d44fa375b0080a95f45f664c0407c72">FLOW_ERROR_LOG_ERROR</a>(err_code);</div>
+<div class="line"><a id="l05703" name="l05703"></a><span class="lineno"> 5703</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Closing and destroying [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] abruptly.&quot;</span>);</div>
+<div class="line"><a id="l05704" name="l05704"></a><span class="lineno"> 5704</span>  }</div>
+<div class="line"><a id="l05705" name="l05705"></a><span class="lineno"> 5705</span>  <span class="keywordflow">else</span></div>
+<div class="line"><a id="l05706" name="l05706"></a><span class="lineno"> 5706</span>  {</div>
+<div class="line"><a id="l05707" name="l05707"></a><span class="lineno"> 5707</span>    <span class="comment">// m_disconnect_cause has already been set and logged.</span></div>
+<div class="line"><a id="l05708" name="l05708"></a><span class="lineno"> 5708</span>    <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;Closing and destroying [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] after graceful close.&quot;</span>);</div>
+<div class="line"><a id="l05709" name="l05709"></a><span class="lineno"> 5709</span>  }</div>
+<div class="line"><a id="l05710" name="l05710"></a><span class="lineno"> 5710</span>  <span class="comment">// Log final state report.</span></div>
+<div class="line"><a id="l05711" name="l05711"></a><span class="lineno"> 5711</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a755c329b9e0f2b8edb2e5b900bd2a337">sock_log_detail</a>(sock);</div>
+<div class="line"><a id="l05712" name="l05712"></a><span class="lineno"> 5712</span> </div>
+<div class="line"><a id="l05713" name="l05713"></a><span class="lineno"> 5713</span>  <span class="comment">/* Thread safety: we&#39;re in thread W, so no need to lock things by default (as most resources can</span></div>
+<div class="line"><a id="l05714" name="l05714"></a><span class="lineno"> 5714</span><span class="comment">   * also only be accessed from thread W).  Exceptions are certain data members in Peer_socket</span></div>
+<div class="line"><a id="l05715" name="l05715"></a><span class="lineno"> 5715</span><span class="comment">   * sock and Server_socket serv that may have originated it (if it was a passive open).  I will</span></div>
+<div class="line"><a id="l05716" name="l05716"></a><span class="lineno"> 5716</span><span class="comment">   * comment on the locking situation for those data members as they come up in the code. */</span></div>
+<div class="line"><a id="l05717" name="l05717"></a><span class="lineno"> 5717</span> </div>
+<div class="line"><a id="l05718" name="l05718"></a><span class="lineno"> 5718</span>  <span class="comment">// First, set various state in *sock (including emptying Send and Receive buffers and setting m_node = 0).</span></div>
+<div class="line"><a id="l05719" name="l05719"></a><span class="lineno"> 5719</span> </div>
+<div class="line"><a id="l05720" name="l05720"></a><span class="lineno"> 5720</span>  <span class="comment">/* Save the final set of stats for Peer_socket::info(), as the source data will probably get</span></div>
+<div class="line"><a id="l05721" name="l05721"></a><span class="lineno"> 5721</span><span class="comment">   * purged just below in sock_disconnect_*(). */</span></div>
+<div class="line"><a id="l05722" name="l05722"></a><span class="lineno"> 5722</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">sock_load_info_struct</a>(sock, &amp;sock-&gt;m_info_on_close);</div>
+<div class="line"><a id="l05723" name="l05723"></a><span class="lineno"> 5723</span>  <span class="comment">// We may have to massage it a little more, because some info is set below, by when it&#39;s too late.</span></div>
+<div class="line"><a id="l05724" name="l05724"></a><span class="lineno"> 5724</span> </div>
+<div class="line"><a id="l05725" name="l05725"></a><span class="lineno"> 5725</span>  <span class="keywordflow">if</span> (err_code)</div>
+<div class="line"><a id="l05726" name="l05726"></a><span class="lineno"> 5726</span>  {</div>
+<div class="line"><a id="l05727" name="l05727"></a><span class="lineno"> 5727</span>    <span class="comment">// sock-&gt;m_disconnect_cause has not yet been set; so sock_load_info_struct() did not copy it properly yet.  Do so.</span></div>
+<div class="line"><a id="l05728" name="l05728"></a><span class="lineno"> 5728</span>    sock-&gt;m_info_on_close.m_disconnect_cause = err_code;</div>
+<div class="line"><a id="l05729" name="l05729"></a><span class="lineno"> 5729</span>    <span class="comment">// Similarly:</span></div>
+<div class="line"><a id="l05730" name="l05730"></a><span class="lineno"> 5730</span>    sock-&gt;m_info_on_close.m_int_state_str = lexical_cast&lt;string&gt;(<a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::Int_state::S_CLOSED</a>);</div>
+<div class="line"><a id="l05731" name="l05731"></a><span class="lineno"> 5731</span> </div>
+<div class="line"><a id="l05732" name="l05732"></a><span class="lineno"> 5732</span>    <span class="comment">/* This is an abrupt close.  This can be called in any situation once sock is in m_socks.  It&#39;s</span></div>
+<div class="line"><a id="l05733" name="l05733"></a><span class="lineno"> 5733</span><span class="comment">     * our responsibility to move directly to transport layer state S_CLOSED and user state</span></div>
+<div class="line"><a id="l05734" name="l05734"></a><span class="lineno"> 5734</span><span class="comment">     * S_CLOSED. */</span></div>
+<div class="line"><a id="l05735" name="l05735"></a><span class="lineno"> 5735</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa1d9656e9e1480021c87530ec6dbebbe">sock_set_int_state</a>(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::Int_state::S_CLOSED</a>); <span class="comment">// Thread W access only; no need to lock.</span></div>
+<div class="line"><a id="l05736" name="l05736"></a><span class="lineno"> 5736</span>    <span class="comment">// Sets S_CLOSED public state (and related data, including m_disconnect_cause).  Locked inside.</span></div>
+<div class="line"><a id="l05737" name="l05737"></a><span class="lineno"> 5737</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ada9357f6ce9d5fc249b1cc176afdc471">sock_disconnect_detected</a>(sock, err_code, <span class="keyword">true</span>);</div>
+<div class="line"><a id="l05738" name="l05738"></a><span class="lineno"> 5738</span>  }</div>
+<div class="line"><a id="l05739" name="l05739"></a><span class="lineno"> 5739</span>  <span class="keywordflow">else</span></div>
+<div class="line"><a id="l05740" name="l05740"></a><span class="lineno"> 5740</span>  {</div>
+<div class="line"><a id="l05741" name="l05741"></a><span class="lineno"> 5741</span>    <span class="comment">/* We are in a graceful close and have reached the final stage of it (connection entirely</span></div>
+<div class="line"><a id="l05742" name="l05742"></a><span class="lineno"> 5742</span><span class="comment">     * closed without having to abruptly close; buffers emptied gracefully by user and/or Node).</span></div>
+<div class="line"><a id="l05743" name="l05743"></a><span class="lineno"> 5743</span><span class="comment">     * Therefore m_int_state is already S_CLOSED (method pre-condition), so</span></div>
+<div class="line"><a id="l05744" name="l05744"></a><span class="lineno"> 5744</span><span class="comment">     * we just complete the user-visible state change. */</span></div>
 <div class="line"><a id="l05745" name="l05745"></a><span class="lineno"> 5745</span> </div>
-<div class="line"><a id="l05746" name="l05746"></a><span class="lineno"> 5746</span><span class="preprocessor">#ifndef NDEBUG</span></div>
-<div class="line"><a id="l05747" name="l05747"></a><span class="lineno"> 5747</span>  <span class="keyword">const</span> <span class="keyword">auto</span> erased = 1 ==</div>
-<div class="line"><a id="l05748" name="l05748"></a><span class="lineno"> 5748</span><span class="preprocessor">#endif</span></div>
-<div class="line"><a id="l05749" name="l05749"></a><span class="lineno"> 5749</span>    <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#a90244d69d550370158bbe843ab595a7a">m_socks</a>.erase(<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>);</div>
-<div class="line"><a id="l05750" name="l05750"></a><span class="lineno"> 5750</span>  assert(erased); <span class="comment">// S_OPEN =&gt; it&#39;s in m_socks.  Otherwise there&#39;s a serious bug somewhere.</span></div>
+<div class="line"><a id="l05746" name="l05746"></a><span class="lineno"> 5746</span>    assert(sock-&gt;m_int_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::Int_state::S_CLOSED</a>); <span class="comment">// Thread W access only; no need to lock.</span></div>
+<div class="line"><a id="l05747" name="l05747"></a><span class="lineno"> 5747</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ade529b5452c9fe363ae468346e662ceb">sock_disconnect_completed</a>(sock); <span class="comment">// Sets S_CLOSED public state (and related data).  Locked inside.</span></div>
+<div class="line"><a id="l05748" name="l05748"></a><span class="lineno"> 5748</span>  }</div>
+<div class="line"><a id="l05749" name="l05749"></a><span class="lineno"> 5749</span> </div>
+<div class="line"><a id="l05750" name="l05750"></a><span class="lineno"> 5750</span>  <span class="comment">// Next, remove sock from our main socket list.</span></div>
 <div class="line"><a id="l05751" name="l05751"></a><span class="lineno"> 5751</span> </div>
-<div class="line"><a id="l05752" name="l05752"></a><span class="lineno"> 5752</span>  <span class="comment">// Next, if this potentially is an unaccepted connection, delete it from the corresponding server socket.</span></div>
-<div class="line"><a id="l05753" name="l05753"></a><span class="lineno"> 5753</span>  <span class="keywordflow">if</span> (!sock-&gt;m_active_connect)</div>
-<div class="line"><a id="l05754" name="l05754"></a><span class="lineno"> 5754</span>  {</div>
-<div class="line"><a id="l05755" name="l05755"></a><span class="lineno"> 5755</span>    <span class="comment">/* What is that Server_socket though?  Well, it&#39;s in sock-&gt;m_originating_serv... but that data</span></div>
-<div class="line"><a id="l05756" name="l05756"></a><span class="lineno"> 5756</span><span class="comment">     * member can be accessed from a non-W thread, so we&#39;d have to lock it.  But the mutex that</span></div>
-<div class="line"><a id="l05757" name="l05757"></a><span class="lineno"> 5757</span><span class="comment">     * protects it in in *m_originating_serv itself!  So it&#39;s a chicked/egg problem.  However, we</span></div>
-<div class="line"><a id="l05758" name="l05758"></a><span class="lineno"> 5758</span><span class="comment">     * can find that Server_socket (if it applies to sock) another way: through the port.  Its port</span></div>
-<div class="line"><a id="l05759" name="l05759"></a><span class="lineno"> 5759</span><span class="comment">     * must be the same as local_port.  If such a Server_socket exists, cool; and if sock is</span></div>
-<div class="line"><a id="l05760" name="l05760"></a><span class="lineno"> 5760</span><span class="comment">     * tracked inside it, cool.  Otherwise we needn&#39;t do anything. */</span></div>
-<div class="line"><a id="l05761" name="l05761"></a><span class="lineno"> 5761</span>    Port_to_server_map::const_iterator port_to_server_it = <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#aae28990628a86a07327f49973f2390df">m_servs</a>.find(sock-&gt;m_local_port);</div>
-<div class="line"><a id="l05762" name="l05762"></a><span class="lineno"> 5762</span>    <span class="keywordflow">if</span> (port_to_server_it != <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#aae28990628a86a07327f49973f2390df">m_servs</a>.end()) <span class="comment">// Server at same port number exists.  Not necessarily our guy though.</span></div>
-<div class="line"><a id="l05763" name="l05763"></a><span class="lineno"> 5763</span>    {</div>
-<div class="line"><a id="l05764" name="l05764"></a><span class="lineno"> 5764</span>      <span class="comment">// If it is our guy, delete us from him.</span></div>
-<div class="line"><a id="l05765" name="l05765"></a><span class="lineno"> 5765</span>      <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Server_socket::Ptr</a> serv = port_to_server_it-&gt;second;</div>
-<div class="line"><a id="l05766" name="l05766"></a><span class="lineno"> 5766</span>      <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a8a6c02bf520a16df4028bd3c88732a8d">serv_peer_socket_closed</a>(serv, sock); <span class="comment">// Thread-safe (in particular with respect to simultaneous serv-&gt;accept()).</span></div>
-<div class="line"><a id="l05767" name="l05767"></a><span class="lineno"> 5767</span>    }</div>
-<div class="line"><a id="l05768" name="l05768"></a><span class="lineno"> 5768</span>  }</div>
-<div class="line"><a id="l05769" name="l05769"></a><span class="lineno"> 5769</span> </div>
-<div class="line"><a id="l05770" name="l05770"></a><span class="lineno"> 5770</span>  <span class="comment">// sock now should not be (directly or indirectly) referenced in any Node data structures.</span></div>
-<div class="line"><a id="l05771" name="l05771"></a><span class="lineno"> 5771</span> </div>
-<div class="line"><a id="l05772" name="l05772"></a><span class="lineno"> 5772</span>  <span class="comment">// Cancel any timers.</span></div>
-<div class="line"><a id="l05773" name="l05773"></a><span class="lineno"> 5773</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a3f9cf4d7160b3e27b3b0131fc4507ce7">cancel_timers</a>(sock);</div>
-<div class="line"><a id="l05774" name="l05774"></a><span class="lineno"> 5774</span> </div>
-<div class="line"><a id="l05775" name="l05775"></a><span class="lineno"> 5775</span>  <span class="comment">/* Return the port -- but only if it is an active open.  If it&#39;s a passive open the port is</span></div>
-<div class="line"><a id="l05776" name="l05776"></a><span class="lineno"> 5776</span><span class="comment">   * still reserved for the server socket. */</span></div>
-<div class="line"><a id="l05777" name="l05777"></a><span class="lineno"> 5777</span>  <span class="keywordflow">if</span> (sock-&gt;m_active_connect)</div>
-<div class="line"><a id="l05778" name="l05778"></a><span class="lineno"> 5778</span>  {</div>
-<div class="line"><a id="l05779" name="l05779"></a><span class="lineno"> 5779</span>    <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> return_err_code;</div>
-<div class="line"><a id="l05780" name="l05780"></a><span class="lineno"> 5780</span>    <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#afd6388a362531ada956a864fefff6011">m_ports</a>.<a class="code hl_function" href="classflow_1_1net__flow_1_1Port__space.html#a9fe1be917ff7584ff587b5da5967127a">return_port</a>(sock-&gt;m_local_port, &amp;return_err_code);</div>
-<div class="line"><a id="l05781" name="l05781"></a><span class="lineno"> 5781</span>    assert(!return_err_code);</div>
-<div class="line"><a id="l05782" name="l05782"></a><span class="lineno"> 5782</span>  }</div>
-<div class="line"><a id="l05783" name="l05783"></a><span class="lineno"> 5783</span> </div>
-<div class="line"><a id="l05784" name="l05784"></a><span class="lineno"> 5784</span>  <span class="comment">/* sock has changed to CLOSED state.  Performing sock-&gt;receive() or sock-&gt;write() would therefore</span></div>
-<div class="line"><a id="l05785" name="l05785"></a><span class="lineno"> 5785</span><span class="comment">   * certainly return an error.  Returning an error from those methods (as opposed to 0 but no</span></div>
-<div class="line"><a id="l05786" name="l05786"></a><span class="lineno"> 5786</span><span class="comment">   * error) is considered Readable and Writable, respectively (as we want to alert the user to the</span></div>
-<div class="line"><a id="l05787" name="l05787"></a><span class="lineno"> 5787</span><span class="comment">   * error, so her wait [if any] wakes up and notices the error).  Therefore we should soon inform</span></div>
-<div class="line"><a id="l05788" name="l05788"></a><span class="lineno"> 5788</span><span class="comment">   * anyone waiting on any Event_sets for sock to become Readable or Writable.</span></div>
-<div class="line"><a id="l05789" name="l05789"></a><span class="lineno"> 5789</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05790" name="l05790"></a><span class="lineno"> 5790</span><span class="comment">   * Caveat: Similar to that in Node::handle_syn_ack_ack_to_syn_rcvd() at similar point in the</span></div>
-<div class="line"><a id="l05791" name="l05791"></a><span class="lineno"> 5791</span><span class="comment">   * code. */</span></div>
-<div class="line"><a id="l05792" name="l05792"></a><span class="lineno"> 5792</span> </div>
-<div class="line"><a id="l05793" name="l05793"></a><span class="lineno"> 5793</span>  <span class="comment">// Accumulate the event into the Node store (note: not any Event_set yet).</span></div>
-<div class="line"><a id="l05794" name="l05794"></a><span class="lineno"> 5794</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> inserted_rd = <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#ab0026feecdb74eda904d00d2c7016bab">m_sock_events</a>[<a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a7cedcbdde2b86daeb1268c63c6cb6b88">Event_set::Event_type::S_PEER_SOCKET_READABLE</a>].<a class="code hl_function" href="classflow_1_1util_1_1Linked__hash__map.html#aae7a4a3047c90f0ab26ae1a4ec7b9963">insert</a>(sock).second;</div>
-<div class="line"><a id="l05795" name="l05795"></a><span class="lineno"> 5795</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> inserted_wr = <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#ab0026feecdb74eda904d00d2c7016bab">m_sock_events</a>[<a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">Event_set::Event_type::S_PEER_SOCKET_WRITABLE</a>].<a class="code hl_function" href="classflow_1_1util_1_1Linked__hash__map.html#aae7a4a3047c90f0ab26ae1a4ec7b9963">insert</a>(sock).second;</div>
-<div class="line"><a id="l05796" name="l05796"></a><span class="lineno"> 5796</span>  <span class="keywordflow">if</span> (inserted_rd || inserted_wr) <span class="comment">// Must always perform both insert()s, hence the use of the 2 variables.</span></div>
-<div class="line"><a id="l05797" name="l05797"></a><span class="lineno"> 5797</span>  {</div>
-<div class="line"><a id="l05798" name="l05798"></a><span class="lineno"> 5798</span>    <span class="comment">// Possibly inform the user for any applicable Event_sets right now.</span></div>
-<div class="line"><a id="l05799" name="l05799"></a><span class="lineno"> 5799</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a8a4ddf81ddbeab1f740940c4cc0d3625">event_set_all_check_delta</a>(defer_delta_check);</div>
-<div class="line"><a id="l05800" name="l05800"></a><span class="lineno"> 5800</span>  }</div>
-<div class="line"><a id="l05801" name="l05801"></a><span class="lineno"> 5801</span>} <span class="comment">// Node::close_connection_immediately()</span></div>
-<div class="line"><a id="l05802" name="l05802"></a><span class="lineno"> 5802</span> </div>
-<div class="line"><a id="l05803" name="l05803"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151"> 5803</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">Node::rst_and_close_connection_immediately</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
-<div class="line"><a id="l05804" name="l05804"></a><span class="lineno"> 5804</span>                                                <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>&amp; err_code, <span class="keywordtype">bool</span> defer_delta_check)</div>
-<div class="line"><a id="l05805" name="l05805"></a><span class="lineno"> 5805</span>{</div>
-<div class="line"><a id="l05806" name="l05806"></a><span class="lineno"> 5806</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l05807" name="l05807"></a><span class="lineno"> 5807</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad03aa88df3d1d3981454ee3356e868c1">async_sock_low_lvl_rst_send</a>(sock);</div>
-<div class="line"><a id="l05808" name="l05808"></a><span class="lineno"> 5808</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">close_connection_immediately</a>(<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>, sock, err_code, defer_delta_check);</div>
-<div class="line"><a id="l05809" name="l05809"></a><span class="lineno"> 5809</span>}</div>
-<div class="line"><a id="l05810" name="l05810"></a><span class="lineno"> 5810</span> </div>
-<div class="line"><a id="l05811" name="l05811"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a5bca5c11ac5a4763fed6ce146fe733e7"> 5811</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Syn_packet::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a5bca5c11ac5a4763fed6ce146fe733e7">Node::create_syn</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)</div>
-<div class="line"><a id="l05812" name="l05812"></a><span class="lineno"> 5812</span>{</div>
-<div class="line"><a id="l05813" name="l05813"></a><span class="lineno"> 5813</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>;</div>
-<div class="line"><a id="l05814" name="l05814"></a><span class="lineno"> 5814</span> </div>
-<div class="line"><a id="l05815" name="l05815"></a><span class="lineno"> 5815</span>  <span class="keyword">auto</span> syn = Low_lvl_packet::create_uninit_packet&lt;Syn_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
-<div class="line"><a id="l05816" name="l05816"></a><span class="lineno"> 5816</span>  <span class="comment">// Initial Sequence Number.</span></div>
-<div class="line"><a id="l05817" name="l05817"></a><span class="lineno"> 5817</span>  syn-&gt;m_init_seq_num = sock-&gt;m_snd_init_seq_num;</div>
-<div class="line"><a id="l05818" name="l05818"></a><span class="lineno"> 5818</span>  <span class="comment">/* Send serialized version of arbitrary user data, which user can deserialize on the other side</span></div>
-<div class="line"><a id="l05819" name="l05819"></a><span class="lineno"> 5819</span><span class="comment">   * after accepting connection.</span></div>
-<div class="line"><a id="l05820" name="l05820"></a><span class="lineno"> 5820</span><span class="comment">   * Add const to express we require a copy, not move. */</span></div>
-<div class="line"><a id="l05821" name="l05821"></a><span class="lineno"> 5821</span>  syn-&gt;m_serialized_metadata = <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">Blob</a>&amp;<span class="keyword">&gt;</span>(sock-&gt;m_serialized_metadata);</div>
-<div class="line"><a id="l05822" name="l05822"></a><span class="lineno"> 5822</span> </div>
-<div class="line"><a id="l05823" name="l05823"></a><span class="lineno"> 5823</span>  <span class="keywordflow">return</span> syn;</div>
-<div class="line"><a id="l05824" name="l05824"></a><span class="lineno"> 5824</span>}</div>
-<div class="line"><a id="l05825" name="l05825"></a><span class="lineno"> 5825</span> </div>
-<div class="line"><a id="l05826" name="l05826"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a6bcd840049c57150cdaa5c59d22c488b"> 5826</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Syn_ack_packet::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a6bcd840049c57150cdaa5c59d22c488b">Node::create_syn_ack</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)</div>
-<div class="line"><a id="l05827" name="l05827"></a><span class="lineno"> 5827</span>{</div>
-<div class="line"><a id="l05828" name="l05828"></a><span class="lineno"> 5828</span>  <span class="keyword">auto</span> syn_ack = Low_lvl_packet::create_uninit_packet&lt;Syn_ack_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
-<div class="line"><a id="l05829" name="l05829"></a><span class="lineno"> 5829</span>  <span class="comment">// Initial Sequence Number (the start of our own series).</span></div>
-<div class="line"><a id="l05830" name="l05830"></a><span class="lineno"> 5830</span>  syn_ack-&gt;m_init_seq_num = sock-&gt;m_snd_init_seq_num;</div>
-<div class="line"><a id="l05831" name="l05831"></a><span class="lineno"> 5831</span>  <span class="comment">// Random security token.</span></div>
-<div class="line"><a id="l05832" name="l05832"></a><span class="lineno"> 5832</span>  syn_ack-&gt;m_packed.m_security_token = sock-&gt;m_security_token;</div>
-<div class="line"><a id="l05833" name="l05833"></a><span class="lineno"> 5833</span>  <span class="comment">// Advertise initial rcv_wnd.</span></div>
-<div class="line"><a id="l05834" name="l05834"></a><span class="lineno"> 5834</span>  syn_ack-&gt;m_packed.m_rcv_wnd = sock-&gt;m_rcv_last_sent_rcv_wnd;</div>
-<div class="line"><a id="l05835" name="l05835"></a><span class="lineno"> 5835</span> </div>
-<div class="line"><a id="l05836" name="l05836"></a><span class="lineno"> 5836</span>  <span class="keywordflow">return</span> syn_ack;</div>
-<div class="line"><a id="l05837" name="l05837"></a><span class="lineno"> 5837</span>}</div>
-<div class="line"><a id="l05838" name="l05838"></a><span class="lineno"> 5838</span> </div>
-<div class="line"><a id="l05839" name="l05839"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#acaf55766783893827061fd85cab2634f"> 5839</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#acaf55766783893827061fd85cab2634f">Node::async_low_lvl_syn_ack_ack_send_or_close_immediately</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>&amp; sock,</div>
-<div class="line"><a id="l05840" name="l05840"></a><span class="lineno"> 5840</span>                                                               boost::shared_ptr&lt;const Syn_ack_packet&gt;&amp; syn_ack)</div>
-<div class="line"><a id="l05841" name="l05841"></a><span class="lineno"> 5841</span>{</div>
-<div class="line"><a id="l05842" name="l05842"></a><span class="lineno"> 5842</span>  <span class="comment">// Make a packet.</span></div>
-<div class="line"><a id="l05843" name="l05843"></a><span class="lineno"> 5843</span>  <span class="keyword">auto</span> syn_ack_ack = Low_lvl_packet::create_uninit_packet&lt;Syn_ack_ack_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
-<div class="line"><a id="l05844" name="l05844"></a><span class="lineno"> 5844</span>  <span class="comment">// No sequence number (not the initial SYN; not data).</span></div>
-<div class="line"><a id="l05845" name="l05845"></a><span class="lineno"> 5845</span>  <span class="comment">// Security token: give it back to them (they will verify).</span></div>
-<div class="line"><a id="l05846" name="l05846"></a><span class="lineno"> 5846</span>  syn_ack_ack-&gt;m_packed.m_security_token = syn_ack-&gt;m_packed.m_security_token;</div>
-<div class="line"><a id="l05847" name="l05847"></a><span class="lineno"> 5847</span>  <span class="comment">// Initial receive window is probably the entire, ~empty Receive buffer.  Save the advertised rcv_wnd as promised.</span></div>
-<div class="line"><a id="l05848" name="l05848"></a><span class="lineno"> 5848</span>  syn_ack_ack-&gt;m_packed.m_rcv_wnd = sock-&gt;m_rcv_last_sent_rcv_wnd = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">sock_rcv_wnd</a>(sock);</div>
-<div class="line"><a id="l05849" name="l05849"></a><span class="lineno"> 5849</span> </div>
-<div class="line"><a id="l05850" name="l05850"></a><span class="lineno"> 5850</span>  <span class="comment">// Fill out common fields and asynchronously send packet.</span></div>
-<div class="line"><a id="l05851" name="l05851"></a><span class="lineno"> 5851</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">async_sock_low_lvl_packet_send_or_close_immediately</a>(sock,</div>
-<div class="line"><a id="l05852" name="l05852"></a><span class="lineno"> 5852</span>                                                             <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(syn_ack_ack),</div>
-<div class="line"><a id="l05853" name="l05853"></a><span class="lineno"> 5853</span>                                                             <span class="keyword">true</span>); <span class="comment">// Warns on error.</span></div>
-<div class="line"><a id="l05854" name="l05854"></a><span class="lineno"> 5854</span>  <span class="comment">// ^-- defer_delta_check == true: for similar reason as in handle_syn_ack_ack_to_syn_rcvd().</span></div>
-<div class="line"><a id="l05855" name="l05855"></a><span class="lineno"> 5855</span>}</div>
-<div class="line"><a id="l05856" name="l05856"></a><span class="lineno"> 5856</span> </div>
-<div class="line"><a id="l05857" name="l05857"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a81e50276d0b162f6577adc690e0ef9e0"> 5857</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a81e50276d0b162f6577adc690e0ef9e0">Node::async_low_lvl_ack_send</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keywordtype">bool</span> defer_delta_check, <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>&amp; sys_err_code)</div>
-<div class="line"><a id="l05858" name="l05858"></a><span class="lineno"> 5858</span>{</div>
-<div class="line"><a id="l05859" name="l05859"></a><span class="lineno"> 5859</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
-<div class="line"><a id="l05860" name="l05860"></a><span class="lineno"> 5860</span>  <span class="keyword">using </span>boost::chrono::duration_cast;</div>
-<div class="line"><a id="l05861" name="l05861"></a><span class="lineno"> 5861</span>  <span class="keyword">using </span>std::make_pair;</div>
-<div class="line"><a id="l05862" name="l05862"></a><span class="lineno"> 5862</span>  <span class="keyword">using </span>std::vector;</div>
-<div class="line"><a id="l05863" name="l05863"></a><span class="lineno"> 5863</span>  <span class="keyword">using </span>std::numeric_limits;</div>
-<div class="line"><a id="l05864" name="l05864"></a><span class="lineno"> 5864</span> </div>
-<div class="line"><a id="l05865" name="l05865"></a><span class="lineno"> 5865</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l05866" name="l05866"></a><span class="lineno"> 5866</span> </div>
-<div class="line"><a id="l05867" name="l05867"></a><span class="lineno"> 5867</span>  <span class="comment">// Handle the timer-related corner cases (if we were invoked by m_rcv_delayed_ack_timer triggering).</span></div>
-<div class="line"><a id="l05868" name="l05868"></a><span class="lineno"> 5868</span> </div>
-<div class="line"><a id="l05869" name="l05869"></a><span class="lineno"> 5869</span>  <span class="comment">// For brevity and speed:</span></div>
-<div class="line"><a id="l05870" name="l05870"></a><span class="lineno"> 5870</span>  vector&lt;Peer_socket::Individual_ack::Ptr&gt;&amp; pending_acks = sock-&gt;m_rcv_pending_acks;</div>
-<div class="line"><a id="l05871" name="l05871"></a><span class="lineno"> 5871</span> </div>
-<div class="line"><a id="l05872" name="l05872"></a><span class="lineno"> 5872</span>  <span class="keywordflow">if</span> (sys_err_code == boost::asio::error::operation_aborted)</div>
-<div class="line"><a id="l05873" name="l05873"></a><span class="lineno"> 5873</span>  {</div>
-<div class="line"><a id="l05874" name="l05874"></a><span class="lineno"> 5874</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Delayed [ACK] timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] canceled; &quot;</span></div>
-<div class="line"><a id="l05875" name="l05875"></a><span class="lineno"> 5875</span>                   <span class="stringliteral">&quot;pending acknowledgment count [&quot;</span> &lt;&lt; pending_acks.size() &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l05876" name="l05876"></a><span class="lineno"> 5876</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05877" name="l05877"></a><span class="lineno"> 5877</span>  }</div>
-<div class="line"><a id="l05878" name="l05878"></a><span class="lineno"> 5878</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l05879" name="l05879"></a><span class="lineno"> 5879</span> </div>
-<div class="line"><a id="l05880" name="l05880"></a><span class="lineno"> 5880</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Delayed [ACK] timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] triggered, or ACK forced; &quot;</span></div>
-<div class="line"><a id="l05881" name="l05881"></a><span class="lineno"> 5881</span>                 <span class="stringliteral">&quot;pending acknowledgment count [&quot;</span> &lt;&lt; pending_acks.size() &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l05882" name="l05882"></a><span class="lineno"> 5882</span> </div>
-<div class="line"><a id="l05883" name="l05883"></a><span class="lineno"> 5883</span>  <span class="keywordflow">if</span> (sys_err_code)</div>
-<div class="line"><a id="l05884" name="l05884"></a><span class="lineno"> 5884</span>  {</div>
-<div class="line"><a id="l05885" name="l05885"></a><span class="lineno"> 5885</span>    <a class="code hl_define" href="error_2error_8hpp.html#a019ee6e90802e444572dd78d312d6e23">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>(); <span class="comment">// Log non-portable error.</span></div>
-<div class="line"><a id="l05886" name="l05886"></a><span class="lineno"> 5886</span>    <span class="comment">// Nothing else to do here.  We don&#39;t know what this means.  So just treat it as if timer was triggered.</span></div>
-<div class="line"><a id="l05887" name="l05887"></a><span class="lineno"> 5887</span>  }</div>
+<div class="line"><a id="l05752" name="l05752"></a><span class="lineno"> 5752</span><span class="preprocessor">#ifndef NDEBUG</span></div>
+<div class="line"><a id="l05753" name="l05753"></a><span class="lineno"> 5753</span>  <span class="keyword">const</span> <span class="keyword">auto</span> erased = 1 ==</div>
+<div class="line"><a id="l05754" name="l05754"></a><span class="lineno"> 5754</span><span class="preprocessor">#endif</span></div>
+<div class="line"><a id="l05755" name="l05755"></a><span class="lineno"> 5755</span>    <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#a90244d69d550370158bbe843ab595a7a">m_socks</a>.erase(<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>);</div>
+<div class="line"><a id="l05756" name="l05756"></a><span class="lineno"> 5756</span>  assert(erased); <span class="comment">// S_OPEN =&gt; it&#39;s in m_socks.  Otherwise there&#39;s a serious bug somewhere.</span></div>
+<div class="line"><a id="l05757" name="l05757"></a><span class="lineno"> 5757</span> </div>
+<div class="line"><a id="l05758" name="l05758"></a><span class="lineno"> 5758</span>  <span class="comment">// Next, if this potentially is an unaccepted connection, delete it from the corresponding server socket.</span></div>
+<div class="line"><a id="l05759" name="l05759"></a><span class="lineno"> 5759</span>  <span class="keywordflow">if</span> (!sock-&gt;m_active_connect)</div>
+<div class="line"><a id="l05760" name="l05760"></a><span class="lineno"> 5760</span>  {</div>
+<div class="line"><a id="l05761" name="l05761"></a><span class="lineno"> 5761</span>    <span class="comment">/* What is that Server_socket though?  Well, it&#39;s in sock-&gt;m_originating_serv... but that data</span></div>
+<div class="line"><a id="l05762" name="l05762"></a><span class="lineno"> 5762</span><span class="comment">     * member can be accessed from a non-W thread, so we&#39;d have to lock it.  But the mutex that</span></div>
+<div class="line"><a id="l05763" name="l05763"></a><span class="lineno"> 5763</span><span class="comment">     * protects it in in *m_originating_serv itself!  So it&#39;s a chicked/egg problem.  However, we</span></div>
+<div class="line"><a id="l05764" name="l05764"></a><span class="lineno"> 5764</span><span class="comment">     * can find that Server_socket (if it applies to sock) another way: through the port.  Its port</span></div>
+<div class="line"><a id="l05765" name="l05765"></a><span class="lineno"> 5765</span><span class="comment">     * must be the same as local_port.  If such a Server_socket exists, cool; and if sock is</span></div>
+<div class="line"><a id="l05766" name="l05766"></a><span class="lineno"> 5766</span><span class="comment">     * tracked inside it, cool.  Otherwise we needn&#39;t do anything. */</span></div>
+<div class="line"><a id="l05767" name="l05767"></a><span class="lineno"> 5767</span>    Port_to_server_map::const_iterator port_to_server_it = <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#aae28990628a86a07327f49973f2390df">m_servs</a>.find(sock-&gt;m_local_port);</div>
+<div class="line"><a id="l05768" name="l05768"></a><span class="lineno"> 5768</span>    <span class="keywordflow">if</span> (port_to_server_it != <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#aae28990628a86a07327f49973f2390df">m_servs</a>.end()) <span class="comment">// Server at same port number exists.  Not necessarily our guy though.</span></div>
+<div class="line"><a id="l05769" name="l05769"></a><span class="lineno"> 5769</span>    {</div>
+<div class="line"><a id="l05770" name="l05770"></a><span class="lineno"> 5770</span>      <span class="comment">// If it is our guy, delete us from him.</span></div>
+<div class="line"><a id="l05771" name="l05771"></a><span class="lineno"> 5771</span>      <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Server_socket::Ptr</a> serv = port_to_server_it-&gt;second;</div>
+<div class="line"><a id="l05772" name="l05772"></a><span class="lineno"> 5772</span>      <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a8a6c02bf520a16df4028bd3c88732a8d">serv_peer_socket_closed</a>(serv, sock); <span class="comment">// Thread-safe (in particular with respect to simultaneous serv-&gt;accept()).</span></div>
+<div class="line"><a id="l05773" name="l05773"></a><span class="lineno"> 5773</span>    }</div>
+<div class="line"><a id="l05774" name="l05774"></a><span class="lineno"> 5774</span>  }</div>
+<div class="line"><a id="l05775" name="l05775"></a><span class="lineno"> 5775</span> </div>
+<div class="line"><a id="l05776" name="l05776"></a><span class="lineno"> 5776</span>  <span class="comment">// sock now should not be (directly or indirectly) referenced in any Node data structures.</span></div>
+<div class="line"><a id="l05777" name="l05777"></a><span class="lineno"> 5777</span> </div>
+<div class="line"><a id="l05778" name="l05778"></a><span class="lineno"> 5778</span>  <span class="comment">// Cancel any timers.</span></div>
+<div class="line"><a id="l05779" name="l05779"></a><span class="lineno"> 5779</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a3f9cf4d7160b3e27b3b0131fc4507ce7">cancel_timers</a>(sock);</div>
+<div class="line"><a id="l05780" name="l05780"></a><span class="lineno"> 5780</span> </div>
+<div class="line"><a id="l05781" name="l05781"></a><span class="lineno"> 5781</span>  <span class="comment">/* Return the port -- but only if it is an active open.  If it&#39;s a passive open the port is</span></div>
+<div class="line"><a id="l05782" name="l05782"></a><span class="lineno"> 5782</span><span class="comment">   * still reserved for the server socket. */</span></div>
+<div class="line"><a id="l05783" name="l05783"></a><span class="lineno"> 5783</span>  <span class="keywordflow">if</span> (sock-&gt;m_active_connect)</div>
+<div class="line"><a id="l05784" name="l05784"></a><span class="lineno"> 5784</span>  {</div>
+<div class="line"><a id="l05785" name="l05785"></a><span class="lineno"> 5785</span>    <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> return_err_code;</div>
+<div class="line"><a id="l05786" name="l05786"></a><span class="lineno"> 5786</span>    <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#afd6388a362531ada956a864fefff6011">m_ports</a>.<a class="code hl_function" href="classflow_1_1net__flow_1_1Port__space.html#a9fe1be917ff7584ff587b5da5967127a">return_port</a>(sock-&gt;m_local_port, &amp;return_err_code);</div>
+<div class="line"><a id="l05787" name="l05787"></a><span class="lineno"> 5787</span>    assert(!return_err_code);</div>
+<div class="line"><a id="l05788" name="l05788"></a><span class="lineno"> 5788</span>  }</div>
+<div class="line"><a id="l05789" name="l05789"></a><span class="lineno"> 5789</span> </div>
+<div class="line"><a id="l05790" name="l05790"></a><span class="lineno"> 5790</span>  <span class="comment">/* sock has changed to CLOSED state.  Performing sock-&gt;receive() or sock-&gt;write() would therefore</span></div>
+<div class="line"><a id="l05791" name="l05791"></a><span class="lineno"> 5791</span><span class="comment">   * certainly return an error.  Returning an error from those methods (as opposed to 0 but no</span></div>
+<div class="line"><a id="l05792" name="l05792"></a><span class="lineno"> 5792</span><span class="comment">   * error) is considered Readable and Writable, respectively (as we want to alert the user to the</span></div>
+<div class="line"><a id="l05793" name="l05793"></a><span class="lineno"> 5793</span><span class="comment">   * error, so her wait [if any] wakes up and notices the error).  Therefore we should soon inform</span></div>
+<div class="line"><a id="l05794" name="l05794"></a><span class="lineno"> 5794</span><span class="comment">   * anyone waiting on any Event_sets for sock to become Readable or Writable.</span></div>
+<div class="line"><a id="l05795" name="l05795"></a><span class="lineno"> 5795</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05796" name="l05796"></a><span class="lineno"> 5796</span><span class="comment">   * Caveat: Similar to that in Node::handle_syn_ack_ack_to_syn_rcvd() at similar point in the</span></div>
+<div class="line"><a id="l05797" name="l05797"></a><span class="lineno"> 5797</span><span class="comment">   * code. */</span></div>
+<div class="line"><a id="l05798" name="l05798"></a><span class="lineno"> 5798</span> </div>
+<div class="line"><a id="l05799" name="l05799"></a><span class="lineno"> 5799</span>  <span class="comment">// Accumulate the event into the Node store (note: not any Event_set yet).</span></div>
+<div class="line"><a id="l05800" name="l05800"></a><span class="lineno"> 5800</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> inserted_rd = <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#ab0026feecdb74eda904d00d2c7016bab">m_sock_events</a>[<a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a7cedcbdde2b86daeb1268c63c6cb6b88">Event_set::Event_type::S_PEER_SOCKET_READABLE</a>].<a class="code hl_function" href="classflow_1_1util_1_1Linked__hash__map.html#aae7a4a3047c90f0ab26ae1a4ec7b9963">insert</a>(sock).second;</div>
+<div class="line"><a id="l05801" name="l05801"></a><span class="lineno"> 5801</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> inserted_wr = <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#ab0026feecdb74eda904d00d2c7016bab">m_sock_events</a>[<a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">Event_set::Event_type::S_PEER_SOCKET_WRITABLE</a>].<a class="code hl_function" href="classflow_1_1util_1_1Linked__hash__map.html#aae7a4a3047c90f0ab26ae1a4ec7b9963">insert</a>(sock).second;</div>
+<div class="line"><a id="l05802" name="l05802"></a><span class="lineno"> 5802</span>  <span class="keywordflow">if</span> (inserted_rd || inserted_wr) <span class="comment">// Must always perform both insert()s, hence the use of the 2 variables.</span></div>
+<div class="line"><a id="l05803" name="l05803"></a><span class="lineno"> 5803</span>  {</div>
+<div class="line"><a id="l05804" name="l05804"></a><span class="lineno"> 5804</span>    <span class="comment">// Possibly inform the user for any applicable Event_sets right now.</span></div>
+<div class="line"><a id="l05805" name="l05805"></a><span class="lineno"> 5805</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a8a4ddf81ddbeab1f740940c4cc0d3625">event_set_all_check_delta</a>(defer_delta_check);</div>
+<div class="line"><a id="l05806" name="l05806"></a><span class="lineno"> 5806</span>  }</div>
+<div class="line"><a id="l05807" name="l05807"></a><span class="lineno"> 5807</span>} <span class="comment">// Node::close_connection_immediately()</span></div>
+<div class="line"><a id="l05808" name="l05808"></a><span class="lineno"> 5808</span> </div>
+<div class="line"><a id="l05809" name="l05809"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151"> 5809</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">Node::rst_and_close_connection_immediately</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>&amp; socket_id, <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock,</div>
+<div class="line"><a id="l05810" name="l05810"></a><span class="lineno"> 5810</span>                                                <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>&amp; err_code, <span class="keywordtype">bool</span> defer_delta_check)</div>
+<div class="line"><a id="l05811" name="l05811"></a><span class="lineno"> 5811</span>{</div>
+<div class="line"><a id="l05812" name="l05812"></a><span class="lineno"> 5812</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l05813" name="l05813"></a><span class="lineno"> 5813</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad03aa88df3d1d3981454ee3356e868c1">async_sock_low_lvl_rst_send</a>(sock);</div>
+<div class="line"><a id="l05814" name="l05814"></a><span class="lineno"> 5814</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">close_connection_immediately</a>(<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">socket_id</a>, sock, err_code, defer_delta_check);</div>
+<div class="line"><a id="l05815" name="l05815"></a><span class="lineno"> 5815</span>}</div>
+<div class="line"><a id="l05816" name="l05816"></a><span class="lineno"> 5816</span> </div>
+<div class="line"><a id="l05817" name="l05817"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a5bca5c11ac5a4763fed6ce146fe733e7"> 5817</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Syn_packet::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a5bca5c11ac5a4763fed6ce146fe733e7">Node::create_syn</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)</div>
+<div class="line"><a id="l05818" name="l05818"></a><span class="lineno"> 5818</span>{</div>
+<div class="line"><a id="l05819" name="l05819"></a><span class="lineno"> 5819</span>  <span class="keyword">using </span><a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>;</div>
+<div class="line"><a id="l05820" name="l05820"></a><span class="lineno"> 5820</span> </div>
+<div class="line"><a id="l05821" name="l05821"></a><span class="lineno"> 5821</span>  <span class="keyword">auto</span> syn = Low_lvl_packet::create_uninit_packet&lt;Syn_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
+<div class="line"><a id="l05822" name="l05822"></a><span class="lineno"> 5822</span>  <span class="comment">// Initial Sequence Number.</span></div>
+<div class="line"><a id="l05823" name="l05823"></a><span class="lineno"> 5823</span>  syn-&gt;m_init_seq_num = sock-&gt;m_snd_init_seq_num;</div>
+<div class="line"><a id="l05824" name="l05824"></a><span class="lineno"> 5824</span>  <span class="comment">/* Send serialized version of arbitrary user data, which user can deserialize on the other side</span></div>
+<div class="line"><a id="l05825" name="l05825"></a><span class="lineno"> 5825</span><span class="comment">   * after accepting connection.</span></div>
+<div class="line"><a id="l05826" name="l05826"></a><span class="lineno"> 5826</span><span class="comment">   * Add const to express we require a copy, not move. */</span></div>
+<div class="line"><a id="l05827" name="l05827"></a><span class="lineno"> 5827</span>  syn-&gt;m_serialized_metadata = <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">Blob</a>&amp;<span class="keyword">&gt;</span>(sock-&gt;m_serialized_metadata);</div>
+<div class="line"><a id="l05828" name="l05828"></a><span class="lineno"> 5828</span> </div>
+<div class="line"><a id="l05829" name="l05829"></a><span class="lineno"> 5829</span>  <span class="keywordflow">return</span> syn;</div>
+<div class="line"><a id="l05830" name="l05830"></a><span class="lineno"> 5830</span>}</div>
+<div class="line"><a id="l05831" name="l05831"></a><span class="lineno"> 5831</span> </div>
+<div class="line"><a id="l05832" name="l05832"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a6bcd840049c57150cdaa5c59d22c488b"> 5832</a></span><a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Syn_ack_packet::Ptr</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a6bcd840049c57150cdaa5c59d22c488b">Node::create_syn_ack</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)</div>
+<div class="line"><a id="l05833" name="l05833"></a><span class="lineno"> 5833</span>{</div>
+<div class="line"><a id="l05834" name="l05834"></a><span class="lineno"> 5834</span>  <span class="keyword">auto</span> syn_ack = Low_lvl_packet::create_uninit_packet&lt;Syn_ack_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
+<div class="line"><a id="l05835" name="l05835"></a><span class="lineno"> 5835</span>  <span class="comment">// Initial Sequence Number (the start of our own series).</span></div>
+<div class="line"><a id="l05836" name="l05836"></a><span class="lineno"> 5836</span>  syn_ack-&gt;m_init_seq_num = sock-&gt;m_snd_init_seq_num;</div>
+<div class="line"><a id="l05837" name="l05837"></a><span class="lineno"> 5837</span>  <span class="comment">// Random security token.</span></div>
+<div class="line"><a id="l05838" name="l05838"></a><span class="lineno"> 5838</span>  syn_ack-&gt;m_packed.m_security_token = sock-&gt;m_security_token;</div>
+<div class="line"><a id="l05839" name="l05839"></a><span class="lineno"> 5839</span>  <span class="comment">// Advertise initial rcv_wnd.</span></div>
+<div class="line"><a id="l05840" name="l05840"></a><span class="lineno"> 5840</span>  syn_ack-&gt;m_packed.m_rcv_wnd = sock-&gt;m_rcv_last_sent_rcv_wnd;</div>
+<div class="line"><a id="l05841" name="l05841"></a><span class="lineno"> 5841</span> </div>
+<div class="line"><a id="l05842" name="l05842"></a><span class="lineno"> 5842</span>  <span class="keywordflow">return</span> syn_ack;</div>
+<div class="line"><a id="l05843" name="l05843"></a><span class="lineno"> 5843</span>}</div>
+<div class="line"><a id="l05844" name="l05844"></a><span class="lineno"> 5844</span> </div>
+<div class="line"><a id="l05845" name="l05845"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#acaf55766783893827061fd85cab2634f"> 5845</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#acaf55766783893827061fd85cab2634f">Node::async_low_lvl_syn_ack_ack_send_or_close_immediately</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a>&amp; sock,</div>
+<div class="line"><a id="l05846" name="l05846"></a><span class="lineno"> 5846</span>                                                               boost::shared_ptr&lt;const Syn_ack_packet&gt;&amp; syn_ack)</div>
+<div class="line"><a id="l05847" name="l05847"></a><span class="lineno"> 5847</span>{</div>
+<div class="line"><a id="l05848" name="l05848"></a><span class="lineno"> 5848</span>  <span class="comment">// Make a packet.</span></div>
+<div class="line"><a id="l05849" name="l05849"></a><span class="lineno"> 5849</span>  <span class="keyword">auto</span> syn_ack_ack = Low_lvl_packet::create_uninit_packet&lt;Syn_ack_ack_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
+<div class="line"><a id="l05850" name="l05850"></a><span class="lineno"> 5850</span>  <span class="comment">// No sequence number (not the initial SYN; not data).</span></div>
+<div class="line"><a id="l05851" name="l05851"></a><span class="lineno"> 5851</span>  <span class="comment">// Security token: give it back to them (they will verify).</span></div>
+<div class="line"><a id="l05852" name="l05852"></a><span class="lineno"> 5852</span>  syn_ack_ack-&gt;m_packed.m_security_token = syn_ack-&gt;m_packed.m_security_token;</div>
+<div class="line"><a id="l05853" name="l05853"></a><span class="lineno"> 5853</span>  <span class="comment">// Initial receive window is probably the entire, ~empty Receive buffer.  Save the advertised rcv_wnd as promised.</span></div>
+<div class="line"><a id="l05854" name="l05854"></a><span class="lineno"> 5854</span>  syn_ack_ack-&gt;m_packed.m_rcv_wnd = sock-&gt;m_rcv_last_sent_rcv_wnd = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">sock_rcv_wnd</a>(sock);</div>
+<div class="line"><a id="l05855" name="l05855"></a><span class="lineno"> 5855</span> </div>
+<div class="line"><a id="l05856" name="l05856"></a><span class="lineno"> 5856</span>  <span class="comment">// Fill out common fields and asynchronously send packet.</span></div>
+<div class="line"><a id="l05857" name="l05857"></a><span class="lineno"> 5857</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">async_sock_low_lvl_packet_send_or_close_immediately</a>(sock,</div>
+<div class="line"><a id="l05858" name="l05858"></a><span class="lineno"> 5858</span>                                                             <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(syn_ack_ack),</div>
+<div class="line"><a id="l05859" name="l05859"></a><span class="lineno"> 5859</span>                                                             <span class="keyword">true</span>); <span class="comment">// Warns on error.</span></div>
+<div class="line"><a id="l05860" name="l05860"></a><span class="lineno"> 5860</span>  <span class="comment">// ^-- defer_delta_check == true: for similar reason as in handle_syn_ack_ack_to_syn_rcvd().</span></div>
+<div class="line"><a id="l05861" name="l05861"></a><span class="lineno"> 5861</span>}</div>
+<div class="line"><a id="l05862" name="l05862"></a><span class="lineno"> 5862</span> </div>
+<div class="line"><a id="l05863" name="l05863"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a81e50276d0b162f6577adc690e0ef9e0"> 5863</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a81e50276d0b162f6577adc690e0ef9e0">Node::async_low_lvl_ack_send</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keywordtype">bool</span> defer_delta_check, <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>&amp; sys_err_code)</div>
+<div class="line"><a id="l05864" name="l05864"></a><span class="lineno"> 5864</span>{</div>
+<div class="line"><a id="l05865" name="l05865"></a><span class="lineno"> 5865</span>  <span class="keyword">using </span>boost::chrono::milliseconds;</div>
+<div class="line"><a id="l05866" name="l05866"></a><span class="lineno"> 5866</span>  <span class="keyword">using </span>boost::chrono::duration_cast;</div>
+<div class="line"><a id="l05867" name="l05867"></a><span class="lineno"> 5867</span>  <span class="keyword">using </span>std::make_pair;</div>
+<div class="line"><a id="l05868" name="l05868"></a><span class="lineno"> 5868</span>  <span class="keyword">using </span>std::vector;</div>
+<div class="line"><a id="l05869" name="l05869"></a><span class="lineno"> 5869</span>  <span class="keyword">using </span>std::numeric_limits;</div>
+<div class="line"><a id="l05870" name="l05870"></a><span class="lineno"> 5870</span> </div>
+<div class="line"><a id="l05871" name="l05871"></a><span class="lineno"> 5871</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l05872" name="l05872"></a><span class="lineno"> 5872</span> </div>
+<div class="line"><a id="l05873" name="l05873"></a><span class="lineno"> 5873</span>  <span class="comment">// Handle the timer-related corner cases (if we were invoked by m_rcv_delayed_ack_timer triggering).</span></div>
+<div class="line"><a id="l05874" name="l05874"></a><span class="lineno"> 5874</span> </div>
+<div class="line"><a id="l05875" name="l05875"></a><span class="lineno"> 5875</span>  <span class="comment">// For brevity and speed:</span></div>
+<div class="line"><a id="l05876" name="l05876"></a><span class="lineno"> 5876</span>  vector&lt;Peer_socket::Individual_ack::Ptr&gt;&amp; pending_acks = sock-&gt;m_rcv_pending_acks;</div>
+<div class="line"><a id="l05877" name="l05877"></a><span class="lineno"> 5877</span> </div>
+<div class="line"><a id="l05878" name="l05878"></a><span class="lineno"> 5878</span>  <span class="keywordflow">if</span> (sys_err_code == boost::asio::error::operation_aborted)</div>
+<div class="line"><a id="l05879" name="l05879"></a><span class="lineno"> 5879</span>  {</div>
+<div class="line"><a id="l05880" name="l05880"></a><span class="lineno"> 5880</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Delayed [ACK] timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] canceled; &quot;</span></div>
+<div class="line"><a id="l05881" name="l05881"></a><span class="lineno"> 5881</span>                   <span class="stringliteral">&quot;pending acknowledgment count [&quot;</span> &lt;&lt; pending_acks.size() &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l05882" name="l05882"></a><span class="lineno"> 5882</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05883" name="l05883"></a><span class="lineno"> 5883</span>  }</div>
+<div class="line"><a id="l05884" name="l05884"></a><span class="lineno"> 5884</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l05885" name="l05885"></a><span class="lineno"> 5885</span> </div>
+<div class="line"><a id="l05886" name="l05886"></a><span class="lineno"> 5886</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Delayed [ACK] timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] triggered, or ACK forced; &quot;</span></div>
+<div class="line"><a id="l05887" name="l05887"></a><span class="lineno"> 5887</span>                 <span class="stringliteral">&quot;pending acknowledgment count [&quot;</span> &lt;&lt; pending_acks.size() &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
 <div class="line"><a id="l05888" name="l05888"></a><span class="lineno"> 5888</span> </div>
-<div class="line"><a id="l05889" name="l05889"></a><span class="lineno"> 5889</span>  <span class="keywordflow">if</span> (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>)</div>
+<div class="line"><a id="l05889" name="l05889"></a><span class="lineno"> 5889</span>  <span class="keywordflow">if</span> (sys_err_code)</div>
 <div class="line"><a id="l05890" name="l05890"></a><span class="lineno"> 5890</span>  {</div>
-<div class="line"><a id="l05891" name="l05891"></a><span class="lineno"> 5891</span>    <span class="comment">/* This is unlikely but legitimate.  (Can happen if, by the time the handler that advanced state</span></div>
-<div class="line"><a id="l05892" name="l05892"></a><span class="lineno"> 5892</span><span class="comment">     * from ESTABLISHED to another state started, this timer also was triggered and thus queued the</span></div>
-<div class="line"><a id="l05893" name="l05893"></a><span class="lineno"> 5893</span><span class="comment">     * current handler inside m_task_engine.) */</span></div>
-<div class="line"><a id="l05894" name="l05894"></a><span class="lineno"> 5894</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Delayed [ACK] timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] triggered, &quot;</span></div>
-<div class="line"><a id="l05895" name="l05895"></a><span class="lineno"> 5895</span>                   <span class="stringliteral">&quot;but socket already in inapplicable state [&quot;</span> &lt;&lt; sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;].  Ignoring.&quot;</span>);</div>
-<div class="line"><a id="l05896" name="l05896"></a><span class="lineno"> 5896</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05897" name="l05897"></a><span class="lineno"> 5897</span>  }</div>
-<div class="line"><a id="l05898" name="l05898"></a><span class="lineno"> 5898</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l05899" name="l05899"></a><span class="lineno"> 5899</span> </div>
-<div class="line"><a id="l05900" name="l05900"></a><span class="lineno"> 5900</span>  <span class="keywordflow">if</span> (pending_acks.empty())</div>
-<div class="line"><a id="l05901" name="l05901"></a><span class="lineno"> 5901</span>  {</div>
-<div class="line"><a id="l05902" name="l05902"></a><span class="lineno"> 5902</span>    <span class="comment">/* This is probably a bug if we&#39;re here.  However, assert() or connection closure seems a bit</span></div>
-<div class="line"><a id="l05903" name="l05903"></a><span class="lineno"> 5903</span><span class="comment">     * drastic... carry on. */</span></div>
-<div class="line"><a id="l05904" name="l05904"></a><span class="lineno"> 5904</span>    <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;Delayed [ACK] timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] triggered, &quot;</span></div>
-<div class="line"><a id="l05905" name="l05905"></a><span class="lineno"> 5905</span>                     <span class="stringliteral">&quot;but socket has no pending acknowledgments.  This is likely an internal bug.  Ignoring.&quot;</span>);</div>
-<div class="line"><a id="l05906" name="l05906"></a><span class="lineno"> 5906</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05907" name="l05907"></a><span class="lineno"> 5907</span>  }</div>
-<div class="line"><a id="l05908" name="l05908"></a><span class="lineno"> 5908</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l05909" name="l05909"></a><span class="lineno"> 5909</span> </div>
-<div class="line"><a id="l05910" name="l05910"></a><span class="lineno"> 5910</span>  <span class="comment">/* OK, let&#39;s do it.  Basically just shove all the acknowledgments into an ACK packet.  Namely, for</span></div>
-<div class="line"><a id="l05911" name="l05911"></a><span class="lineno"> 5911</span><span class="comment">   * each one, shove the starting sequence number and the amount of time since we first received it</span></div>
-<div class="line"><a id="l05912" name="l05912"></a><span class="lineno"> 5912</span><span class="comment">   * (so the other side can subtract that to compute RTT, if it wants).</span></div>
-<div class="line"><a id="l05913" name="l05913"></a><span class="lineno"> 5913</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05914" name="l05914"></a><span class="lineno"> 5914</span><span class="comment">   * However we may run out of space and need more ACKs.  To keep track of how much space we&#39;ve</span></div>
-<div class="line"><a id="l05915" name="l05915"></a><span class="lineno"> 5915</span><span class="comment">   * used, compute an estimate for serializing those two pieces of data and keep adding that for</span></div>
-<div class="line"><a id="l05916" name="l05916"></a><span class="lineno"> 5916</span><span class="comment">   * each acknowledgment handled.  The budget is given by max-block-size; a DATA packet is allowed</span></div>
-<div class="line"><a id="l05917" name="l05917"></a><span class="lineno"> 5917</span><span class="comment">   * that much payload on top of the normal header stuff, so that should be good enough for us too.</span></div>
-<div class="line"><a id="l05918" name="l05918"></a><span class="lineno"> 5918</span><span class="comment">   * There&#39;s probably some constant overhead on top of that, but it&#39;s close enough.</span></div>
+<div class="line"><a id="l05891" name="l05891"></a><span class="lineno"> 5891</span>    <a class="code hl_define" href="error_2error_8hpp.html#a019ee6e90802e444572dd78d312d6e23">FLOW_ERROR_SYS_ERROR_LOG_WARNING</a>(); <span class="comment">// Log non-portable error.</span></div>
+<div class="line"><a id="l05892" name="l05892"></a><span class="lineno"> 5892</span>    <span class="comment">// Nothing else to do here.  We don&#39;t know what this means.  So just treat it as if timer was triggered.</span></div>
+<div class="line"><a id="l05893" name="l05893"></a><span class="lineno"> 5893</span>  }</div>
+<div class="line"><a id="l05894" name="l05894"></a><span class="lineno"> 5894</span> </div>
+<div class="line"><a id="l05895" name="l05895"></a><span class="lineno"> 5895</span>  <span class="keywordflow">if</span> (sock-&gt;m_int_state != <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">Peer_socket::Int_state::S_ESTABLISHED</a>)</div>
+<div class="line"><a id="l05896" name="l05896"></a><span class="lineno"> 5896</span>  {</div>
+<div class="line"><a id="l05897" name="l05897"></a><span class="lineno"> 5897</span>    <span class="comment">/* This is unlikely but legitimate.  (Can happen if, by the time the handler that advanced state</span></div>
+<div class="line"><a id="l05898" name="l05898"></a><span class="lineno"> 5898</span><span class="comment">     * from ESTABLISHED to another state started, this timer also was triggered and thus queued the</span></div>
+<div class="line"><a id="l05899" name="l05899"></a><span class="lineno"> 5899</span><span class="comment">     * current handler inside m_task_engine.) */</span></div>
+<div class="line"><a id="l05900" name="l05900"></a><span class="lineno"> 5900</span>    <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;Delayed [ACK] timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] triggered, &quot;</span></div>
+<div class="line"><a id="l05901" name="l05901"></a><span class="lineno"> 5901</span>                   <span class="stringliteral">&quot;but socket already in inapplicable state [&quot;</span> &lt;&lt; sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;].  Ignoring.&quot;</span>);</div>
+<div class="line"><a id="l05902" name="l05902"></a><span class="lineno"> 5902</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05903" name="l05903"></a><span class="lineno"> 5903</span>  }</div>
+<div class="line"><a id="l05904" name="l05904"></a><span class="lineno"> 5904</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l05905" name="l05905"></a><span class="lineno"> 5905</span> </div>
+<div class="line"><a id="l05906" name="l05906"></a><span class="lineno"> 5906</span>  <span class="keywordflow">if</span> (pending_acks.empty())</div>
+<div class="line"><a id="l05907" name="l05907"></a><span class="lineno"> 5907</span>  {</div>
+<div class="line"><a id="l05908" name="l05908"></a><span class="lineno"> 5908</span>    <span class="comment">/* This is probably a bug if we&#39;re here.  However, assert() or connection closure seems a bit</span></div>
+<div class="line"><a id="l05909" name="l05909"></a><span class="lineno"> 5909</span><span class="comment">     * drastic... carry on. */</span></div>
+<div class="line"><a id="l05910" name="l05910"></a><span class="lineno"> 5910</span>    <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;Delayed [ACK] timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] triggered, &quot;</span></div>
+<div class="line"><a id="l05911" name="l05911"></a><span class="lineno"> 5911</span>                     <span class="stringliteral">&quot;but socket has no pending acknowledgments.  This is likely an internal bug.  Ignoring.&quot;</span>);</div>
+<div class="line"><a id="l05912" name="l05912"></a><span class="lineno"> 5912</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05913" name="l05913"></a><span class="lineno"> 5913</span>  }</div>
+<div class="line"><a id="l05914" name="l05914"></a><span class="lineno"> 5914</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l05915" name="l05915"></a><span class="lineno"> 5915</span> </div>
+<div class="line"><a id="l05916" name="l05916"></a><span class="lineno"> 5916</span>  <span class="comment">/* OK, let&#39;s do it.  Basically just shove all the acknowledgments into an ACK packet.  Namely, for</span></div>
+<div class="line"><a id="l05917" name="l05917"></a><span class="lineno"> 5917</span><span class="comment">   * each one, shove the starting sequence number and the amount of time since we first received it</span></div>
+<div class="line"><a id="l05918" name="l05918"></a><span class="lineno"> 5918</span><span class="comment">   * (so the other side can subtract that to compute RTT, if it wants).</span></div>
 <div class="line"><a id="l05919" name="l05919"></a><span class="lineno"> 5919</span><span class="comment">   *</span></div>
-<div class="line"><a id="l05920" name="l05920"></a><span class="lineno"> 5920</span><span class="comment">   * ACK is also used as an opportunistic way to send rcv_wnd to the other side, which informs</span></div>
-<div class="line"><a id="l05921" name="l05921"></a><span class="lineno"> 5921</span><span class="comment">   * them of how much more data we can take at this time.  Naively we should just have rcv_wnd =</span></div>
-<div class="line"><a id="l05922" name="l05922"></a><span class="lineno"> 5922</span><span class="comment">   * the max buffer size minus the buffer space currently taken, and that is the most accurate</span></div>
-<div class="line"><a id="l05923" name="l05923"></a><span class="lineno"> 5923</span><span class="comment">   * thing.  However RFC 793 (&quot;Window Management Suggestions&quot;) and probably other literature</span></div>
-<div class="line"><a id="l05924" name="l05924"></a><span class="lineno"> 5924</span><span class="comment">   * suggest to (when the available space is increasing) advertise the window in larger steps (so</span></div>
-<div class="line"><a id="l05925" name="l05925"></a><span class="lineno"> 5925</span><span class="comment">   * withhold the higher rcv_wnd value until it increases even further up to some threshold).  For</span></div>
-<div class="line"><a id="l05926" name="l05926"></a><span class="lineno"> 5926</span><span class="comment">   * now I forego such fanciness.  See also the rcv_wnd-related comment in</span></div>
-<div class="line"><a id="l05927" name="l05927"></a><span class="lineno"> 5927</span><span class="comment">   * Node::receive_wnd_increased() for further reasoning on rcv_wnd (namely surrounding the fact</span></div>
-<div class="line"><a id="l05928" name="l05928"></a><span class="lineno"> 5928</span><span class="comment">   * that sometimes we must send ACKs with no packets acknowledged to ensure a connection does not</span></div>
-<div class="line"><a id="l05929" name="l05929"></a><span class="lineno"> 5929</span><span class="comment">   * stall due to a zero rcv_wnd). */</span></div>
-<div class="line"><a id="l05930" name="l05930"></a><span class="lineno"> 5930</span> </div>
-<div class="line"><a id="l05931" name="l05931"></a><span class="lineno"> 5931</span>  <span class="comment">// Grab available Receive buffer space.  Save it for later comparison.</span></div>
-<div class="line"><a id="l05932" name="l05932"></a><span class="lineno"> 5932</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span>&amp; rcv_wnd = sock-&gt;m_rcv_last_sent_rcv_wnd = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">sock_rcv_wnd</a>(sock);</div>
-<div class="line"><a id="l05933" name="l05933"></a><span class="lineno"> 5933</span> </div>
-<div class="line"><a id="l05934" name="l05934"></a><span class="lineno"> 5934</span>  <span class="keyword">auto</span> ack = Low_lvl_packet::create_uninit_packet&lt;Ack_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
-<div class="line"><a id="l05935" name="l05935"></a><span class="lineno"> 5935</span>  ack-&gt;m_rcv_wnd = rcv_wnd; <span class="comment">// Advertise receive window.  @todo Code reuse?</span></div>
+<div class="line"><a id="l05920" name="l05920"></a><span class="lineno"> 5920</span><span class="comment">   * However we may run out of space and need more ACKs.  To keep track of how much space we&#39;ve</span></div>
+<div class="line"><a id="l05921" name="l05921"></a><span class="lineno"> 5921</span><span class="comment">   * used, compute an estimate for serializing those two pieces of data and keep adding that for</span></div>
+<div class="line"><a id="l05922" name="l05922"></a><span class="lineno"> 5922</span><span class="comment">   * each acknowledgment handled.  The budget is given by max-block-size; a DATA packet is allowed</span></div>
+<div class="line"><a id="l05923" name="l05923"></a><span class="lineno"> 5923</span><span class="comment">   * that much payload on top of the normal header stuff, so that should be good enough for us too.</span></div>
+<div class="line"><a id="l05924" name="l05924"></a><span class="lineno"> 5924</span><span class="comment">   * There&#39;s probably some constant overhead on top of that, but it&#39;s close enough.</span></div>
+<div class="line"><a id="l05925" name="l05925"></a><span class="lineno"> 5925</span><span class="comment">   *</span></div>
+<div class="line"><a id="l05926" name="l05926"></a><span class="lineno"> 5926</span><span class="comment">   * ACK is also used as an opportunistic way to send rcv_wnd to the other side, which informs</span></div>
+<div class="line"><a id="l05927" name="l05927"></a><span class="lineno"> 5927</span><span class="comment">   * them of how much more data we can take at this time.  Naively we should just have rcv_wnd =</span></div>
+<div class="line"><a id="l05928" name="l05928"></a><span class="lineno"> 5928</span><span class="comment">   * the max buffer size minus the buffer space currently taken, and that is the most accurate</span></div>
+<div class="line"><a id="l05929" name="l05929"></a><span class="lineno"> 5929</span><span class="comment">   * thing.  However RFC 793 (&quot;Window Management Suggestions&quot;) and probably other literature</span></div>
+<div class="line"><a id="l05930" name="l05930"></a><span class="lineno"> 5930</span><span class="comment">   * suggest to (when the available space is increasing) advertise the window in larger steps (so</span></div>
+<div class="line"><a id="l05931" name="l05931"></a><span class="lineno"> 5931</span><span class="comment">   * withhold the higher rcv_wnd value until it increases even further up to some threshold).  For</span></div>
+<div class="line"><a id="l05932" name="l05932"></a><span class="lineno"> 5932</span><span class="comment">   * now I forego such fanciness.  See also the rcv_wnd-related comment in</span></div>
+<div class="line"><a id="l05933" name="l05933"></a><span class="lineno"> 5933</span><span class="comment">   * Node::receive_wnd_increased() for further reasoning on rcv_wnd (namely surrounding the fact</span></div>
+<div class="line"><a id="l05934" name="l05934"></a><span class="lineno"> 5934</span><span class="comment">   * that sometimes we must send ACKs with no packets acknowledged to ensure a connection does not</span></div>
+<div class="line"><a id="l05935" name="l05935"></a><span class="lineno"> 5935</span><span class="comment">   * stall due to a zero rcv_wnd). */</span></div>
 <div class="line"><a id="l05936" name="l05936"></a><span class="lineno"> 5936</span> </div>
-<div class="line"><a id="l05937" name="l05937"></a><span class="lineno"> 5937</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a4bd7b471dd6cd3e3570930b48d30e577">max_block_size</a> = sock-&gt;max_block_size();</div>
-<div class="line"><a id="l05938" name="l05938"></a><span class="lineno"> 5938</span>  <span class="keywordtype">size_t</span> size_est_inc</div>
-<div class="line"><a id="l05939" name="l05939"></a><span class="lineno"> 5939</span>    = <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">Ack_packet::ack_delay_t</a>) + <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">Sequence_number::seq_num_t</a>);</div>
-<div class="line"><a id="l05940" name="l05940"></a><span class="lineno"> 5940</span>  <span class="keywordflow">if</span> (sock-&gt;rexmit_on())</div>
-<div class="line"><a id="l05941" name="l05941"></a><span class="lineno"> 5941</span>  {</div>
-<div class="line"><a id="l05942" name="l05942"></a><span class="lineno"> 5942</span>    size_est_inc += <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">Low_lvl_packet::rexmit_id_t</a>);</div>
-<div class="line"><a id="l05943" name="l05943"></a><span class="lineno"> 5943</span>  }</div>
-<div class="line"><a id="l05944" name="l05944"></a><span class="lineno"> 5944</span>  assert(size_est_inc &lt;= <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a4bd7b471dd6cd3e3570930b48d30e577">max_block_size</a>); <span class="comment">// At least one has to fit.</span></div>
-<div class="line"><a id="l05945" name="l05945"></a><span class="lineno"> 5945</span> </div>
-<div class="line"><a id="l05946" name="l05946"></a><span class="lineno"> 5946</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> time_now = Fine_clock::now();</div>
-<div class="line"><a id="l05947" name="l05947"></a><span class="lineno"> 5947</span>  <span class="keywordtype">size_t</span> size_est_so_far = <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">Low_lvl_packet::rcv_wnd_t</a>); <span class="comment">// How many raw bytes we have, approximately, used.</span></div>
-<div class="line"><a id="l05948" name="l05948"></a><span class="lineno"> 5948</span>  <span class="keywordflow">for</span> (<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">Peer_socket::Individual_ack::Const_ptr</a> ind_ack : pending_acks)</div>
-<div class="line"><a id="l05949" name="l05949"></a><span class="lineno"> 5949</span>  {</div>
-<div class="line"><a id="l05950" name="l05950"></a><span class="lineno"> 5950</span>    <span class="keywordflow">if</span> (size_est_so_far + size_est_inc &gt; <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a4bd7b471dd6cd3e3570930b48d30e577">max_block_size</a>)</div>
-<div class="line"><a id="l05951" name="l05951"></a><span class="lineno"> 5951</span>    {</div>
-<div class="line"><a id="l05952" name="l05952"></a><span class="lineno"> 5952</span>      <span class="comment">// Too big.  Send off what we have.</span></div>
-<div class="line"><a id="l05953" name="l05953"></a><span class="lineno"> 5953</span>      <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">async_sock_low_lvl_packet_send_or_close_immediately</a>(sock,</div>
-<div class="line"><a id="l05954" name="l05954"></a><span class="lineno"> 5954</span>                                                               <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(ack),</div>
-<div class="line"><a id="l05955" name="l05955"></a><span class="lineno"> 5955</span>                                                               defer_delta_check))</div>
-<div class="line"><a id="l05956" name="l05956"></a><span class="lineno"> 5956</span>      {</div>
-<div class="line"><a id="l05957" name="l05957"></a><span class="lineno"> 5957</span>        <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l05958" name="l05958"></a><span class="lineno"> 5958</span>      }</div>
-<div class="line"><a id="l05959" name="l05959"></a><span class="lineno"> 5959</span>      <span class="comment">// else</span></div>
-<div class="line"><a id="l05960" name="l05960"></a><span class="lineno"> 5960</span> </div>
-<div class="line"><a id="l05961" name="l05961"></a><span class="lineno"> 5961</span>      <span class="comment">// Register one ACK packet we will send ASAP.</span></div>
-<div class="line"><a id="l05962" name="l05962"></a><span class="lineno"> 5962</span>      sock-&gt;m_rcv_stats.sent_low_lvl_ack_packet(<span class="keyword">false</span>);</div>
-<div class="line"><a id="l05963" name="l05963"></a><span class="lineno"> 5963</span> </div>
-<div class="line"><a id="l05964" name="l05964"></a><span class="lineno"> 5964</span>      <span class="comment">// As async_sock_low_lvl_packet_send_paced() says, we cannot reuse ack&#39;s pointed-to-object.  Make new one.</span></div>
-<div class="line"><a id="l05965" name="l05965"></a><span class="lineno"> 5965</span>      ack = Low_lvl_packet::create_uninit_packet&lt;Ack_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
-<div class="line"><a id="l05966" name="l05966"></a><span class="lineno"> 5966</span>      ack-&gt;m_rcv_wnd = rcv_wnd; <span class="comment">// Advertise receive window.  @todo Code reuse?</span></div>
-<div class="line"><a id="l05967" name="l05967"></a><span class="lineno"> 5967</span> </div>
-<div class="line"><a id="l05968" name="l05968"></a><span class="lineno"> 5968</span>      size_est_so_far = <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">Low_lvl_packet::rcv_wnd_t</a>);</div>
-<div class="line"><a id="l05969" name="l05969"></a><span class="lineno"> 5969</span>    }</div>
-<div class="line"><a id="l05970" name="l05970"></a><span class="lineno"> 5970</span> </div>
-<div class="line"><a id="l05971" name="l05971"></a><span class="lineno"> 5971</span>    <span class="comment">// Add the acknowledgment to the current ACK.</span></div>
-<div class="line"><a id="l05972" name="l05972"></a><span class="lineno"> 5972</span> </div>
-<div class="line"><a id="l05973" name="l05973"></a><span class="lineno"> 5973</span>    <span class="comment">// First sequence number in packet.</span></div>
-<div class="line"><a id="l05974" name="l05974"></a><span class="lineno"> 5974</span>    <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num = ind_ack-&gt;m_seq_num;</div>
-<div class="line"><a id="l05975" name="l05975"></a><span class="lineno"> 5975</span> </div>
-<div class="line"><a id="l05976" name="l05976"></a><span class="lineno"> 5976</span>    <span class="comment">// ACK delay for this individual acknowledgment.  Compute it; then validate it.</span></div>
-<div class="line"><a id="l05977" name="l05977"></a><span class="lineno"> 5977</span> </div>
-<div class="line"><a id="l05978" name="l05978"></a><span class="lineno"> 5978</span>    <span class="comment">/* @todo In low_lvl_io, we perform packet pacing but currently choose to assign a value of</span></div>
-<div class="line"><a id="l05979" name="l05979"></a><span class="lineno"> 5979</span><span class="comment">     * 0 bytes to an ACK.  That is, while we do preserve the order of DATA and ACK packets -- if</span></div>
-<div class="line"><a id="l05980" name="l05980"></a><span class="lineno"> 5980</span><span class="comment">     * both happen to be in the outgoing stream -- we do not delay the sending of the ACK once it is</span></div>
-<div class="line"><a id="l05981" name="l05981"></a><span class="lineno"> 5981</span><span class="comment">     * the next packet to be sent out.  However, even so, an ACK&#39;s sending may be delayed by the</span></div>
-<div class="line"><a id="l05982" name="l05982"></a><span class="lineno"> 5982</span><span class="comment">     * pacing applied to DATA packets intermixed with it.  Therefore the ACK delay measurement we</span></div>
-<div class="line"><a id="l05983" name="l05983"></a><span class="lineno"> 5983</span><span class="comment">     * take here may be incorrect (too low) in that case.  This can cause overestimated RTTs on the</span></div>
-<div class="line"><a id="l05984" name="l05984"></a><span class="lineno"> 5984</span><span class="comment">     * sender&#39;s side.  The to-do is to correct the ACK delay value in a given ACK by adding the</span></div>
-<div class="line"><a id="l05985" name="l05985"></a><span class="lineno"> 5985</span><span class="comment">     * pacing delay (if any) of the ACK to the individual ACK delays within it.  Conceptually this</span></div>
-<div class="line"><a id="l05986" name="l05986"></a><span class="lineno"> 5986</span><span class="comment">     * is similar to the sent_when value being set when choosing to send a DATA packet and then</span></div>
-<div class="line"><a id="l05987" name="l05987"></a><span class="lineno"> 5987</span><span class="comment">     * corrected in the pacing module later.</span></div>
-<div class="line"><a id="l05988" name="l05988"></a><span class="lineno"> 5988</span><span class="comment">     *</span></div>
-<div class="line"><a id="l05989" name="l05989"></a><span class="lineno"> 5989</span><span class="comment">     * This to-do is not important until we in practice start mixing sending and receiving at the</span></div>
-<div class="line"><a id="l05990" name="l05990"></a><span class="lineno"> 5990</span><span class="comment">     * application layer... but still -- it&#39;s worth knowing that there is a design bug here. */</span></div>
-<div class="line"><a id="l05991" name="l05991"></a><span class="lineno"> 5991</span> </div>
-<div class="line"><a id="l05992" name="l05992"></a><span class="lineno"> 5992</span>    <span class="comment">// Shouldn&#39;t be negative.</span></div>
-<div class="line"><a id="l05993" name="l05993"></a><span class="lineno"> 5993</span>    <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> delay = time_now - ind_ack-&gt;m_received_when;</div>
-<div class="line"><a id="l05994" name="l05994"></a><span class="lineno"> 5994</span>    <span class="keywordflow">if</span> (delay.count() &lt; 0)</div>
-<div class="line"><a id="l05995" name="l05995"></a><span class="lineno"> 5995</span>    {</div>
-<div class="line"><a id="l05996" name="l05996"></a><span class="lineno"> 5996</span>      <span class="comment">/* This is pretty crazy and should not happen according to the documented properties of</span></div>
-<div class="line"><a id="l05997" name="l05997"></a><span class="lineno"> 5997</span><span class="comment">       * Fine_clock.  No need to crash or disconnect though, so do our best.... */</span></div>
-<div class="line"><a id="l05998" name="l05998"></a><span class="lineno"> 5998</span>      <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;Delayed [ACK] timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] triggered; &quot;</span></div>
-<div class="line"><a id="l05999" name="l05999"></a><span class="lineno"> 5999</span>                       <span class="stringliteral">&quot;delay for packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) is &quot;</span></div>
-<div class="line"><a id="l06000" name="l06000"></a><span class="lineno"> 6000</span>                       <span class="stringliteral">&quot;negative: [&quot;</span> &lt;&lt; delay &lt;&lt; <span class="stringliteral">&quot;]; using zero.&quot;</span>);</div>
-<div class="line"><a id="l06001" name="l06001"></a><span class="lineno"> 6001</span>      delay = Fine_duration::zero();</div>
-<div class="line"><a id="l06002" name="l06002"></a><span class="lineno"> 6002</span>    }</div>
-<div class="line"><a id="l06003" name="l06003"></a><span class="lineno"> 6003</span> </div>
-<div class="line"><a id="l06004" name="l06004"></a><span class="lineno"> 6004</span>    <span class="comment">/* Convert whatever resolution Fine_clock uses to milliseconds because we want to keep that</span></div>
-<div class="line"><a id="l06005" name="l06005"></a><span class="lineno"> 6005</span><span class="comment">     * field of the ACK sized according to how the low-level packet handling code prefers it for</span></div>
-<div class="line"><a id="l06006" name="l06006"></a><span class="lineno"> 6006</span><span class="comment">     * efficiency.  Overflow is possible.  Use duration_cast (truncation) instead of rounding,</span></div>
-<div class="line"><a id="l06007" name="l06007"></a><span class="lineno"> 6007</span><span class="comment">     * because in very low-latency situations the extra microseconds rounding up can cause a</span></div>
-<div class="line"><a id="l06008" name="l06008"></a><span class="lineno"> 6008</span><span class="comment">     * negative RTT calculation on the other side (when this ACK is received).  The ACK handling</span></div>
-<div class="line"><a id="l06009" name="l06009"></a><span class="lineno"> 6009</span><span class="comment">     * code will just clamp the value at zero on the other side, but let&#39;s try to avoid it anyway</span></div>
-<div class="line"><a id="l06010" name="l06010"></a><span class="lineno"> 6010</span><span class="comment">     * on this side.</span></div>
-<div class="line"><a id="l06011" name="l06011"></a><span class="lineno"> 6011</span><span class="comment">     *</span></div>
-<div class="line"><a id="l06012" name="l06012"></a><span class="lineno"> 6012</span><span class="comment">     * @todo This comment appears to be outdated, as Ack_delay_time_unit is just Fine_duration.</span></div>
-<div class="line"><a id="l06013" name="l06013"></a><span class="lineno"> 6013</span><span class="comment">     * Look into this. */</span></div>
-<div class="line"><a id="l06014" name="l06014"></a><span class="lineno"> 6014</span>    <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c">Ack_packet::Ack_delay_time_unit</a> pkt_delay = duration_cast&lt;Ack_packet::Ack_delay_time_unit&gt;(delay);</div>
-<div class="line"><a id="l06015" name="l06015"></a><span class="lineno"> 6015</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">Ack_packet::ack_delay_t</a> MAX_DELAY_VALUE = numeric_limits&lt;Ack_packet::ack_delay_t&gt;::max();</div>
-<div class="line"><a id="l06016" name="l06016"></a><span class="lineno"> 6016</span>    <span class="keywordflow">if</span> (uint64_t(pkt_delay.count()) &gt; uint64_t(MAX_DELAY_VALUE))</div>
-<div class="line"><a id="l06017" name="l06017"></a><span class="lineno"> 6017</span>    {</div>
-<div class="line"><a id="l06018" name="l06018"></a><span class="lineno"> 6018</span>      <span class="comment">/* This is pretty crazy though not 100% impossible if the CPU is really loaded, or some other</span></div>
-<div class="line"><a id="l06019" name="l06019"></a><span class="lineno"> 6019</span><span class="comment">       * shenanigans.  So do our best.... */</span></div>
-<div class="line"><a id="l06020" name="l06020"></a><span class="lineno"> 6020</span>      <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;Delayed [ACK] timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] triggered; &quot;</span></div>
-<div class="line"><a id="l06021" name="l06021"></a><span class="lineno"> 6021</span>                       <span class="stringliteral">&quot;delay for packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) is [&quot;</span> &lt;&lt; pkt_delay &lt;&lt; <span class="stringliteral">&quot;]; overflow; &quot;</span></div>
-<div class="line"><a id="l06022" name="l06022"></a><span class="lineno"> 6022</span>                       <span class="stringliteral">&quot;using max value [&quot;</span> &lt;&lt; MAX_DELAY_VALUE &lt;&lt; <span class="stringliteral">&quot;] units.&quot;</span>);</div>
-<div class="line"><a id="l06023" name="l06023"></a><span class="lineno"> 6023</span>      <span class="comment">// @todo Maybe there&#39;s a more sane ceiling value than the absolute maximum?</span></div>
-<div class="line"><a id="l06024" name="l06024"></a><span class="lineno"> 6024</span>      pkt_delay = <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c">Ack_packet::Ack_delay_time_unit</a>(MAX_DELAY_VALUE);</div>
-<div class="line"><a id="l06025" name="l06025"></a><span class="lineno"> 6025</span>    }</div>
-<div class="line"><a id="l06026" name="l06026"></a><span class="lineno"> 6026</span> </div>
-<div class="line"><a id="l06027" name="l06027"></a><span class="lineno"> 6027</span>    <span class="comment">// Finally write the individual acknowledgment.</span></div>
-<div class="line"><a id="l06028" name="l06028"></a><span class="lineno"> 6028</span>    <span class="keywordflow">if</span> (sock-&gt;rexmit_on())</div>
-<div class="line"><a id="l06029" name="l06029"></a><span class="lineno"> 6029</span>    {</div>
-<div class="line"><a id="l06030" name="l06030"></a><span class="lineno"> 6030</span>      ack-&gt;m_rcv_acked_packets_rexmit_on_out.push_back</div>
-<div class="line"><a id="l06031" name="l06031"></a><span class="lineno"> 6031</span>        (<a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html">Ack_packet::Individual_ack_rexmit_on</a>(seq_num,</div>
-<div class="line"><a id="l06032" name="l06032"></a><span class="lineno"> 6032</span>                                              ind_ack-&gt;m_rexmit_id,</div>
-<div class="line"><a id="l06033" name="l06033"></a><span class="lineno"> 6033</span>                                              <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">Ack_packet::ack_delay_t</a>(pkt_delay.count())));</div>
-<div class="line"><a id="l06034" name="l06034"></a><span class="lineno"> 6034</span>    }</div>
-<div class="line"><a id="l06035" name="l06035"></a><span class="lineno"> 6035</span>    <span class="keywordflow">else</span></div>
-<div class="line"><a id="l06036" name="l06036"></a><span class="lineno"> 6036</span>    {</div>
-<div class="line"><a id="l06037" name="l06037"></a><span class="lineno"> 6037</span>      ack-&gt;m_rcv_acked_packets_rexmit_off_out.push_back</div>
-<div class="line"><a id="l06038" name="l06038"></a><span class="lineno"> 6038</span>        (<a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html">Ack_packet::Individual_ack_rexmit_off</a>(seq_num,</div>
-<div class="line"><a id="l06039" name="l06039"></a><span class="lineno"> 6039</span>                                               <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">Ack_packet::ack_delay_t</a>(pkt_delay.count())));</div>
+<div class="line"><a id="l05937" name="l05937"></a><span class="lineno"> 5937</span>  <span class="comment">// Grab available Receive buffer space.  Save it for later comparison.</span></div>
+<div class="line"><a id="l05938" name="l05938"></a><span class="lineno"> 5938</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span>&amp; rcv_wnd = sock-&gt;m_rcv_last_sent_rcv_wnd = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">sock_rcv_wnd</a>(sock);</div>
+<div class="line"><a id="l05939" name="l05939"></a><span class="lineno"> 5939</span> </div>
+<div class="line"><a id="l05940" name="l05940"></a><span class="lineno"> 5940</span>  <span class="keyword">auto</span> ack = Low_lvl_packet::create_uninit_packet&lt;Ack_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
+<div class="line"><a id="l05941" name="l05941"></a><span class="lineno"> 5941</span>  ack-&gt;m_rcv_wnd = rcv_wnd; <span class="comment">// Advertise receive window.  @todo Code reuse?</span></div>
+<div class="line"><a id="l05942" name="l05942"></a><span class="lineno"> 5942</span> </div>
+<div class="line"><a id="l05943" name="l05943"></a><span class="lineno"> 5943</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a4bd7b471dd6cd3e3570930b48d30e577">max_block_size</a> = sock-&gt;max_block_size();</div>
+<div class="line"><a id="l05944" name="l05944"></a><span class="lineno"> 5944</span>  <span class="keywordtype">size_t</span> size_est_inc</div>
+<div class="line"><a id="l05945" name="l05945"></a><span class="lineno"> 5945</span>    = <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">Ack_packet::ack_delay_t</a>) + <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">Sequence_number::seq_num_t</a>);</div>
+<div class="line"><a id="l05946" name="l05946"></a><span class="lineno"> 5946</span>  <span class="keywordflow">if</span> (sock-&gt;rexmit_on())</div>
+<div class="line"><a id="l05947" name="l05947"></a><span class="lineno"> 5947</span>  {</div>
+<div class="line"><a id="l05948" name="l05948"></a><span class="lineno"> 5948</span>    size_est_inc += <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">Low_lvl_packet::rexmit_id_t</a>);</div>
+<div class="line"><a id="l05949" name="l05949"></a><span class="lineno"> 5949</span>  }</div>
+<div class="line"><a id="l05950" name="l05950"></a><span class="lineno"> 5950</span>  assert(size_est_inc &lt;= <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a4bd7b471dd6cd3e3570930b48d30e577">max_block_size</a>); <span class="comment">// At least one has to fit.</span></div>
+<div class="line"><a id="l05951" name="l05951"></a><span class="lineno"> 5951</span> </div>
+<div class="line"><a id="l05952" name="l05952"></a><span class="lineno"> 5952</span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> time_now = Fine_clock::now();</div>
+<div class="line"><a id="l05953" name="l05953"></a><span class="lineno"> 5953</span>  <span class="keywordtype">size_t</span> size_est_so_far = <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">Low_lvl_packet::rcv_wnd_t</a>); <span class="comment">// How many raw bytes we have, approximately, used.</span></div>
+<div class="line"><a id="l05954" name="l05954"></a><span class="lineno"> 5954</span>  <span class="keywordflow">for</span> (<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">Peer_socket::Individual_ack::Const_ptr</a> ind_ack : pending_acks)</div>
+<div class="line"><a id="l05955" name="l05955"></a><span class="lineno"> 5955</span>  {</div>
+<div class="line"><a id="l05956" name="l05956"></a><span class="lineno"> 5956</span>    <span class="keywordflow">if</span> (size_est_so_far + size_est_inc &gt; <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a4bd7b471dd6cd3e3570930b48d30e577">max_block_size</a>)</div>
+<div class="line"><a id="l05957" name="l05957"></a><span class="lineno"> 5957</span>    {</div>
+<div class="line"><a id="l05958" name="l05958"></a><span class="lineno"> 5958</span>      <span class="comment">// Too big.  Send off what we have.</span></div>
+<div class="line"><a id="l05959" name="l05959"></a><span class="lineno"> 5959</span>      <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">async_sock_low_lvl_packet_send_or_close_immediately</a>(sock,</div>
+<div class="line"><a id="l05960" name="l05960"></a><span class="lineno"> 5960</span>                                                               <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(ack),</div>
+<div class="line"><a id="l05961" name="l05961"></a><span class="lineno"> 5961</span>                                                               defer_delta_check))</div>
+<div class="line"><a id="l05962" name="l05962"></a><span class="lineno"> 5962</span>      {</div>
+<div class="line"><a id="l05963" name="l05963"></a><span class="lineno"> 5963</span>        <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l05964" name="l05964"></a><span class="lineno"> 5964</span>      }</div>
+<div class="line"><a id="l05965" name="l05965"></a><span class="lineno"> 5965</span>      <span class="comment">// else</span></div>
+<div class="line"><a id="l05966" name="l05966"></a><span class="lineno"> 5966</span> </div>
+<div class="line"><a id="l05967" name="l05967"></a><span class="lineno"> 5967</span>      <span class="comment">// Register one ACK packet we will send ASAP.</span></div>
+<div class="line"><a id="l05968" name="l05968"></a><span class="lineno"> 5968</span>      sock-&gt;m_rcv_stats.sent_low_lvl_ack_packet(<span class="keyword">false</span>);</div>
+<div class="line"><a id="l05969" name="l05969"></a><span class="lineno"> 5969</span> </div>
+<div class="line"><a id="l05970" name="l05970"></a><span class="lineno"> 5970</span>      <span class="comment">// As async_sock_low_lvl_packet_send_paced() says, we cannot reuse ack&#39;s pointed-to-object.  Make new one.</span></div>
+<div class="line"><a id="l05971" name="l05971"></a><span class="lineno"> 5971</span>      ack = Low_lvl_packet::create_uninit_packet&lt;Ack_packet&gt;(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
+<div class="line"><a id="l05972" name="l05972"></a><span class="lineno"> 5972</span>      ack-&gt;m_rcv_wnd = rcv_wnd; <span class="comment">// Advertise receive window.  @todo Code reuse?</span></div>
+<div class="line"><a id="l05973" name="l05973"></a><span class="lineno"> 5973</span> </div>
+<div class="line"><a id="l05974" name="l05974"></a><span class="lineno"> 5974</span>      size_est_so_far = <span class="keyword">sizeof</span>(<a class="code hl_typedef" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">Low_lvl_packet::rcv_wnd_t</a>);</div>
+<div class="line"><a id="l05975" name="l05975"></a><span class="lineno"> 5975</span>    }</div>
+<div class="line"><a id="l05976" name="l05976"></a><span class="lineno"> 5976</span> </div>
+<div class="line"><a id="l05977" name="l05977"></a><span class="lineno"> 5977</span>    <span class="comment">// Add the acknowledgment to the current ACK.</span></div>
+<div class="line"><a id="l05978" name="l05978"></a><span class="lineno"> 5978</span> </div>
+<div class="line"><a id="l05979" name="l05979"></a><span class="lineno"> 5979</span>    <span class="comment">// First sequence number in packet.</span></div>
+<div class="line"><a id="l05980" name="l05980"></a><span class="lineno"> 5980</span>    <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num = ind_ack-&gt;m_seq_num;</div>
+<div class="line"><a id="l05981" name="l05981"></a><span class="lineno"> 5981</span> </div>
+<div class="line"><a id="l05982" name="l05982"></a><span class="lineno"> 5982</span>    <span class="comment">// ACK delay for this individual acknowledgment.  Compute it; then validate it.</span></div>
+<div class="line"><a id="l05983" name="l05983"></a><span class="lineno"> 5983</span> </div>
+<div class="line"><a id="l05984" name="l05984"></a><span class="lineno"> 5984</span>    <span class="comment">/* @todo In low_lvl_io, we perform packet pacing but currently choose to assign a value of</span></div>
+<div class="line"><a id="l05985" name="l05985"></a><span class="lineno"> 5985</span><span class="comment">     * 0 bytes to an ACK.  That is, while we do preserve the order of DATA and ACK packets -- if</span></div>
+<div class="line"><a id="l05986" name="l05986"></a><span class="lineno"> 5986</span><span class="comment">     * both happen to be in the outgoing stream -- we do not delay the sending of the ACK once it is</span></div>
+<div class="line"><a id="l05987" name="l05987"></a><span class="lineno"> 5987</span><span class="comment">     * the next packet to be sent out.  However, even so, an ACK&#39;s sending may be delayed by the</span></div>
+<div class="line"><a id="l05988" name="l05988"></a><span class="lineno"> 5988</span><span class="comment">     * pacing applied to DATA packets intermixed with it.  Therefore the ACK delay measurement we</span></div>
+<div class="line"><a id="l05989" name="l05989"></a><span class="lineno"> 5989</span><span class="comment">     * take here may be incorrect (too low) in that case.  This can cause overestimated RTTs on the</span></div>
+<div class="line"><a id="l05990" name="l05990"></a><span class="lineno"> 5990</span><span class="comment">     * sender&#39;s side.  The to-do is to correct the ACK delay value in a given ACK by adding the</span></div>
+<div class="line"><a id="l05991" name="l05991"></a><span class="lineno"> 5991</span><span class="comment">     * pacing delay (if any) of the ACK to the individual ACK delays within it.  Conceptually this</span></div>
+<div class="line"><a id="l05992" name="l05992"></a><span class="lineno"> 5992</span><span class="comment">     * is similar to the sent_when value being set when choosing to send a DATA packet and then</span></div>
+<div class="line"><a id="l05993" name="l05993"></a><span class="lineno"> 5993</span><span class="comment">     * corrected in the pacing module later.</span></div>
+<div class="line"><a id="l05994" name="l05994"></a><span class="lineno"> 5994</span><span class="comment">     *</span></div>
+<div class="line"><a id="l05995" name="l05995"></a><span class="lineno"> 5995</span><span class="comment">     * This to-do is not important until we in practice start mixing sending and receiving at the</span></div>
+<div class="line"><a id="l05996" name="l05996"></a><span class="lineno"> 5996</span><span class="comment">     * application layer... but still -- it&#39;s worth knowing that there is a design bug here. */</span></div>
+<div class="line"><a id="l05997" name="l05997"></a><span class="lineno"> 5997</span> </div>
+<div class="line"><a id="l05998" name="l05998"></a><span class="lineno"> 5998</span>    <span class="comment">// Shouldn&#39;t be negative.</span></div>
+<div class="line"><a id="l05999" name="l05999"></a><span class="lineno"> 5999</span>    <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> delay = time_now - ind_ack-&gt;m_received_when;</div>
+<div class="line"><a id="l06000" name="l06000"></a><span class="lineno"> 6000</span>    <span class="keywordflow">if</span> (delay.count() &lt; 0)</div>
+<div class="line"><a id="l06001" name="l06001"></a><span class="lineno"> 6001</span>    {</div>
+<div class="line"><a id="l06002" name="l06002"></a><span class="lineno"> 6002</span>      <span class="comment">/* This is pretty crazy and should not happen according to the documented properties of</span></div>
+<div class="line"><a id="l06003" name="l06003"></a><span class="lineno"> 6003</span><span class="comment">       * Fine_clock.  No need to crash or disconnect though, so do our best.... */</span></div>
+<div class="line"><a id="l06004" name="l06004"></a><span class="lineno"> 6004</span>      <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;Delayed [ACK] timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] triggered; &quot;</span></div>
+<div class="line"><a id="l06005" name="l06005"></a><span class="lineno"> 6005</span>                       <span class="stringliteral">&quot;delay for packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) is &quot;</span></div>
+<div class="line"><a id="l06006" name="l06006"></a><span class="lineno"> 6006</span>                       <span class="stringliteral">&quot;negative: [&quot;</span> &lt;&lt; delay &lt;&lt; <span class="stringliteral">&quot;]; using zero.&quot;</span>);</div>
+<div class="line"><a id="l06007" name="l06007"></a><span class="lineno"> 6007</span>      delay = Fine_duration::zero();</div>
+<div class="line"><a id="l06008" name="l06008"></a><span class="lineno"> 6008</span>    }</div>
+<div class="line"><a id="l06009" name="l06009"></a><span class="lineno"> 6009</span> </div>
+<div class="line"><a id="l06010" name="l06010"></a><span class="lineno"> 6010</span>    <span class="comment">/* Convert whatever resolution Fine_clock uses to milliseconds because we want to keep that</span></div>
+<div class="line"><a id="l06011" name="l06011"></a><span class="lineno"> 6011</span><span class="comment">     * field of the ACK sized according to how the low-level packet handling code prefers it for</span></div>
+<div class="line"><a id="l06012" name="l06012"></a><span class="lineno"> 6012</span><span class="comment">     * efficiency.  Overflow is possible.  Use duration_cast (truncation) instead of rounding,</span></div>
+<div class="line"><a id="l06013" name="l06013"></a><span class="lineno"> 6013</span><span class="comment">     * because in very low-latency situations the extra microseconds rounding up can cause a</span></div>
+<div class="line"><a id="l06014" name="l06014"></a><span class="lineno"> 6014</span><span class="comment">     * negative RTT calculation on the other side (when this ACK is received).  The ACK handling</span></div>
+<div class="line"><a id="l06015" name="l06015"></a><span class="lineno"> 6015</span><span class="comment">     * code will just clamp the value at zero on the other side, but let&#39;s try to avoid it anyway</span></div>
+<div class="line"><a id="l06016" name="l06016"></a><span class="lineno"> 6016</span><span class="comment">     * on this side.</span></div>
+<div class="line"><a id="l06017" name="l06017"></a><span class="lineno"> 6017</span><span class="comment">     *</span></div>
+<div class="line"><a id="l06018" name="l06018"></a><span class="lineno"> 6018</span><span class="comment">     * @todo This comment appears to be outdated, as Ack_delay_time_unit is just Fine_duration.</span></div>
+<div class="line"><a id="l06019" name="l06019"></a><span class="lineno"> 6019</span><span class="comment">     * Look into this. */</span></div>
+<div class="line"><a id="l06020" name="l06020"></a><span class="lineno"> 6020</span>    <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c">Ack_packet::Ack_delay_time_unit</a> pkt_delay = duration_cast&lt;Ack_packet::Ack_delay_time_unit&gt;(delay);</div>
+<div class="line"><a id="l06021" name="l06021"></a><span class="lineno"> 6021</span>    <span class="keyword">const</span> <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">Ack_packet::ack_delay_t</a> MAX_DELAY_VALUE = numeric_limits&lt;Ack_packet::ack_delay_t&gt;::max();</div>
+<div class="line"><a id="l06022" name="l06022"></a><span class="lineno"> 6022</span>    <span class="keywordflow">if</span> (uint64_t(pkt_delay.count()) &gt; uint64_t(MAX_DELAY_VALUE))</div>
+<div class="line"><a id="l06023" name="l06023"></a><span class="lineno"> 6023</span>    {</div>
+<div class="line"><a id="l06024" name="l06024"></a><span class="lineno"> 6024</span>      <span class="comment">/* This is pretty crazy though not 100% impossible if the CPU is really loaded, or some other</span></div>
+<div class="line"><a id="l06025" name="l06025"></a><span class="lineno"> 6025</span><span class="comment">       * shenanigans.  So do our best.... */</span></div>
+<div class="line"><a id="l06026" name="l06026"></a><span class="lineno"> 6026</span>      <a class="code hl_define" href="log_8hpp.html#a626c7dc4d3b4dc0b32a8aac8624d66bc">FLOW_LOG_WARNING</a>(<span class="stringliteral">&quot;Delayed [ACK] timer [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] triggered; &quot;</span></div>
+<div class="line"><a id="l06027" name="l06027"></a><span class="lineno"> 6027</span>                       <span class="stringliteral">&quot;delay for packet [&quot;</span> &lt;&lt; seq_num &lt;&lt; <span class="stringliteral">&quot;, ...) is [&quot;</span> &lt;&lt; pkt_delay &lt;&lt; <span class="stringliteral">&quot;]; overflow; &quot;</span></div>
+<div class="line"><a id="l06028" name="l06028"></a><span class="lineno"> 6028</span>                       <span class="stringliteral">&quot;using max value [&quot;</span> &lt;&lt; MAX_DELAY_VALUE &lt;&lt; <span class="stringliteral">&quot;] units.&quot;</span>);</div>
+<div class="line"><a id="l06029" name="l06029"></a><span class="lineno"> 6029</span>      <span class="comment">// @todo Maybe there&#39;s a more sane ceiling value than the absolute maximum?</span></div>
+<div class="line"><a id="l06030" name="l06030"></a><span class="lineno"> 6030</span>      pkt_delay = <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c">Ack_packet::Ack_delay_time_unit</a>(MAX_DELAY_VALUE);</div>
+<div class="line"><a id="l06031" name="l06031"></a><span class="lineno"> 6031</span>    }</div>
+<div class="line"><a id="l06032" name="l06032"></a><span class="lineno"> 6032</span> </div>
+<div class="line"><a id="l06033" name="l06033"></a><span class="lineno"> 6033</span>    <span class="comment">// Finally write the individual acknowledgment.</span></div>
+<div class="line"><a id="l06034" name="l06034"></a><span class="lineno"> 6034</span>    <span class="keywordflow">if</span> (sock-&gt;rexmit_on())</div>
+<div class="line"><a id="l06035" name="l06035"></a><span class="lineno"> 6035</span>    {</div>
+<div class="line"><a id="l06036" name="l06036"></a><span class="lineno"> 6036</span>      ack-&gt;m_rcv_acked_packets_rexmit_on_out.push_back</div>
+<div class="line"><a id="l06037" name="l06037"></a><span class="lineno"> 6037</span>        (<a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html">Ack_packet::Individual_ack_rexmit_on</a>(seq_num,</div>
+<div class="line"><a id="l06038" name="l06038"></a><span class="lineno"> 6038</span>                                              ind_ack-&gt;m_rexmit_id,</div>
+<div class="line"><a id="l06039" name="l06039"></a><span class="lineno"> 6039</span>                                              <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">Ack_packet::ack_delay_t</a>(pkt_delay.count())));</div>
 <div class="line"><a id="l06040" name="l06040"></a><span class="lineno"> 6040</span>    }</div>
-<div class="line"><a id="l06041" name="l06041"></a><span class="lineno"> 6041</span>    size_est_so_far += size_est_inc;</div>
-<div class="line"><a id="l06042" name="l06042"></a><span class="lineno"> 6042</span> </div>
-<div class="line"><a id="l06043" name="l06043"></a><span class="lineno"> 6043</span>    <span class="comment">// Register one packet of unknown size that we&#39;ve packaged into an ACK and will send ASAP.</span></div>
-<div class="line"><a id="l06044" name="l06044"></a><span class="lineno"> 6044</span>    sock-&gt;m_rcv_stats.sent_individual_ack();</div>
-<div class="line"><a id="l06045" name="l06045"></a><span class="lineno"> 6045</span>  } <span class="comment">// for (ind_ack : pending_acks)</span></div>
-<div class="line"><a id="l06046" name="l06046"></a><span class="lineno"> 6046</span> </div>
-<div class="line"><a id="l06047" name="l06047"></a><span class="lineno"> 6047</span>  <span class="comment">// Don&#39;t forget the last non-full ACK, if any.</span></div>
-<div class="line"><a id="l06048" name="l06048"></a><span class="lineno"> 6048</span>  <span class="keywordflow">if</span> ((size_est_so_far != 0)</div>
-<div class="line"><a id="l06049" name="l06049"></a><span class="lineno"> 6049</span>      &amp;&amp; (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">async_sock_low_lvl_packet_send_or_close_immediately</a>(sock,</div>
-<div class="line"><a id="l06050" name="l06050"></a><span class="lineno"> 6050</span>                                                               <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(ack),</div>
-<div class="line"><a id="l06051" name="l06051"></a><span class="lineno"> 6051</span>                                                               defer_delta_check)))</div>
-<div class="line"><a id="l06052" name="l06052"></a><span class="lineno"> 6052</span>  {</div>
-<div class="line"><a id="l06053" name="l06053"></a><span class="lineno"> 6053</span>    <span class="keywordflow">return</span>;</div>
-<div class="line"><a id="l06054" name="l06054"></a><span class="lineno"> 6054</span>  }</div>
-<div class="line"><a id="l06055" name="l06055"></a><span class="lineno"> 6055</span> </div>
-<div class="line"><a id="l06056" name="l06056"></a><span class="lineno"> 6056</span>  <span class="comment">// Register one ACK packet we will send ASAP.</span></div>
-<div class="line"><a id="l06057" name="l06057"></a><span class="lineno"> 6057</span>  sock-&gt;m_rcv_stats.sent_low_lvl_ack_packet(<span class="keyword">false</span>);</div>
-<div class="line"><a id="l06058" name="l06058"></a><span class="lineno"> 6058</span> </div>
-<div class="line"><a id="l06059" name="l06059"></a><span class="lineno"> 6059</span>  <span class="comment">// All serialized to be sent; the timer can start again when a packet must be acknowledged.</span></div>
-<div class="line"><a id="l06060" name="l06060"></a><span class="lineno"> 6060</span>  pending_acks.clear();</div>
+<div class="line"><a id="l06041" name="l06041"></a><span class="lineno"> 6041</span>    <span class="keywordflow">else</span></div>
+<div class="line"><a id="l06042" name="l06042"></a><span class="lineno"> 6042</span>    {</div>
+<div class="line"><a id="l06043" name="l06043"></a><span class="lineno"> 6043</span>      ack-&gt;m_rcv_acked_packets_rexmit_off_out.push_back</div>
+<div class="line"><a id="l06044" name="l06044"></a><span class="lineno"> 6044</span>        (<a class="code hl_struct" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html">Ack_packet::Individual_ack_rexmit_off</a>(seq_num,</div>
+<div class="line"><a id="l06045" name="l06045"></a><span class="lineno"> 6045</span>                                               <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">Ack_packet::ack_delay_t</a>(pkt_delay.count())));</div>
+<div class="line"><a id="l06046" name="l06046"></a><span class="lineno"> 6046</span>    }</div>
+<div class="line"><a id="l06047" name="l06047"></a><span class="lineno"> 6047</span>    size_est_so_far += size_est_inc;</div>
+<div class="line"><a id="l06048" name="l06048"></a><span class="lineno"> 6048</span> </div>
+<div class="line"><a id="l06049" name="l06049"></a><span class="lineno"> 6049</span>    <span class="comment">// Register one packet of unknown size that we&#39;ve packaged into an ACK and will send ASAP.</span></div>
+<div class="line"><a id="l06050" name="l06050"></a><span class="lineno"> 6050</span>    sock-&gt;m_rcv_stats.sent_individual_ack();</div>
+<div class="line"><a id="l06051" name="l06051"></a><span class="lineno"> 6051</span>  } <span class="comment">// for (ind_ack : pending_acks)</span></div>
+<div class="line"><a id="l06052" name="l06052"></a><span class="lineno"> 6052</span> </div>
+<div class="line"><a id="l06053" name="l06053"></a><span class="lineno"> 6053</span>  <span class="comment">// Don&#39;t forget the last non-full ACK, if any.</span></div>
+<div class="line"><a id="l06054" name="l06054"></a><span class="lineno"> 6054</span>  <span class="keywordflow">if</span> ((size_est_so_far != 0)</div>
+<div class="line"><a id="l06055" name="l06055"></a><span class="lineno"> 6055</span>      &amp;&amp; (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">async_sock_low_lvl_packet_send_or_close_immediately</a>(sock,</div>
+<div class="line"><a id="l06056" name="l06056"></a><span class="lineno"> 6056</span>                                                               <a class="code hl_function" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#a55a247bb8fb2ec94b7cbfdd56be65a81">Low_lvl_packet::ptr_cast</a>(ack),</div>
+<div class="line"><a id="l06057" name="l06057"></a><span class="lineno"> 6057</span>                                                               defer_delta_check)))</div>
+<div class="line"><a id="l06058" name="l06058"></a><span class="lineno"> 6058</span>  {</div>
+<div class="line"><a id="l06059" name="l06059"></a><span class="lineno"> 6059</span>    <span class="keywordflow">return</span>;</div>
+<div class="line"><a id="l06060" name="l06060"></a><span class="lineno"> 6060</span>  }</div>
 <div class="line"><a id="l06061" name="l06061"></a><span class="lineno"> 6061</span> </div>
-<div class="line"><a id="l06062" name="l06062"></a><span class="lineno"> 6062</span>  <span class="comment">// Register that now there are 0 pending individual acks.</span></div>
-<div class="line"><a id="l06063" name="l06063"></a><span class="lineno"> 6063</span>  sock-&gt;m_rcv_stats.current_pending_to_ack_packets(0);</div>
+<div class="line"><a id="l06062" name="l06062"></a><span class="lineno"> 6062</span>  <span class="comment">// Register one ACK packet we will send ASAP.</span></div>
+<div class="line"><a id="l06063" name="l06063"></a><span class="lineno"> 6063</span>  sock-&gt;m_rcv_stats.sent_low_lvl_ack_packet(<span class="keyword">false</span>);</div>
 <div class="line"><a id="l06064" name="l06064"></a><span class="lineno"> 6064</span> </div>
-<div class="line"><a id="l06065" name="l06065"></a><span class="lineno"> 6065</span>  <span class="comment">// Note that all the ACKs are sent off outside this handler and only once UDP is ready.</span></div>
-<div class="line"><a id="l06066" name="l06066"></a><span class="lineno"> 6066</span>} <span class="comment">// Node::async_low_lvl_ack_send()</span></div>
+<div class="line"><a id="l06065" name="l06065"></a><span class="lineno"> 6065</span>  <span class="comment">// All serialized to be sent; the timer can start again when a packet must be acknowledged.</span></div>
+<div class="line"><a id="l06066" name="l06066"></a><span class="lineno"> 6066</span>  pending_acks.clear();</div>
 <div class="line"><a id="l06067" name="l06067"></a><span class="lineno"> 6067</span> </div>
-<div class="line"><a id="l06068" name="l06068"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97"> 6068</a></span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Node::Socket_id</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">Node::socket_id</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock) <span class="comment">// Static.</span></div>
-<div class="line"><a id="l06069" name="l06069"></a><span class="lineno"> 6069</span>{</div>
-<div class="line"><a id="l06070" name="l06070"></a><span class="lineno"> 6070</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l06071" name="l06071"></a><span class="lineno"> 6071</span>  <span class="keywordflow">return</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>{ sock-&gt;remote_endpoint(), sock-&gt;local_port() };</div>
-<div class="line"><a id="l06072" name="l06072"></a><span class="lineno"> 6072</span>}</div>
+<div class="line"><a id="l06068" name="l06068"></a><span class="lineno"> 6068</span>  <span class="comment">// Register that now there are 0 pending individual acks.</span></div>
+<div class="line"><a id="l06069" name="l06069"></a><span class="lineno"> 6069</span>  sock-&gt;m_rcv_stats.current_pending_to_ack_packets(0);</div>
+<div class="line"><a id="l06070" name="l06070"></a><span class="lineno"> 6070</span> </div>
+<div class="line"><a id="l06071" name="l06071"></a><span class="lineno"> 6071</span>  <span class="comment">// Note that all the ACKs are sent off outside this handler and only once UDP is ready.</span></div>
+<div class="line"><a id="l06072" name="l06072"></a><span class="lineno"> 6072</span>} <span class="comment">// Node::async_low_lvl_ack_send()</span></div>
 <div class="line"><a id="l06073" name="l06073"></a><span class="lineno"> 6073</span> </div>
-<div class="line"><a id="l06074" name="l06074"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7"> 6074</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">Node::snd_deqable</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
-<div class="line"><a id="l06075" name="l06075"></a><span class="lineno"> 6075</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l06076" name="l06076"></a><span class="lineno"> 6076</span>  <span class="comment">// There is stuff to send if there is anything to retransmit or at least new user data.</span></div>
-<div class="line"><a id="l06077" name="l06077"></a><span class="lineno"> 6077</span>  <span class="keywordflow">return</span> !(sock-&gt;m_snd_rexmit_q.empty() &amp;&amp; sock-&gt;m_snd_buf.empty());</div>
+<div class="line"><a id="l06074" name="l06074"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97"> 6074</a></span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Node::Socket_id</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">Node::socket_id</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock) <span class="comment">// Static.</span></div>
+<div class="line"><a id="l06075" name="l06075"></a><span class="lineno"> 6075</span>{</div>
+<div class="line"><a id="l06076" name="l06076"></a><span class="lineno"> 6076</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l06077" name="l06077"></a><span class="lineno"> 6077</span>  <span class="keywordflow">return</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">Socket_id</a>{ sock-&gt;remote_endpoint(), sock-&gt;local_port() };</div>
 <div class="line"><a id="l06078" name="l06078"></a><span class="lineno"> 6078</span>}</div>
 <div class="line"><a id="l06079" name="l06079"></a><span class="lineno"> 6079</span> </div>
-<div class="line"><a id="l06080" name="l06080"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a70d124ba678e2ab72f8c6d28140ca137"> 6080</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a70d124ba678e2ab72f8c6d28140ca137">Node::snd_buf_enqable</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
+<div class="line"><a id="l06080" name="l06080"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7"> 6080</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">Node::snd_deqable</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
 <div class="line"><a id="l06081" name="l06081"></a><span class="lineno"> 6081</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l06082" name="l06082"></a><span class="lineno"> 6082</span>  <span class="comment">// See doc comment for rationale for keeping this in a function.</span></div>
-<div class="line"><a id="l06083" name="l06083"></a><span class="lineno"> 6083</span> </div>
-<div class="line"><a id="l06084" name="l06084"></a><span class="lineno"> 6084</span>  <span class="comment">/* Since 1 block can be at most max-block-size, if that much space is free, then definitely one</span></div>
-<div class="line"><a id="l06085" name="l06085"></a><span class="lineno"> 6085</span><span class="comment">   * can enqueue onto m_snd_buf.  Note that if less than max-block-size space is free, it would</span></div>
-<div class="line"><a id="l06086" name="l06086"></a><span class="lineno"> 6086</span><span class="comment">   * still be possible to enqueue a smaller block; yet we still return false.  We are intentionally</span></div>
-<div class="line"><a id="l06087" name="l06087"></a><span class="lineno"> 6087</span><span class="comment">   * conservative, because we are guaranteeing ANY one enqueueing will work.  More importantly, this</span></div>
-<div class="line"><a id="l06088" name="l06088"></a><span class="lineno"> 6088</span><span class="comment">   * guarantees our Socket_buffer scheme (see class doc header) to guarantee constant-time</span></div>
-<div class="line"><a id="l06089" name="l06089"></a><span class="lineno"> 6089</span><span class="comment">   * dequeueing will work.</span></div>
-<div class="line"><a id="l06090" name="l06090"></a><span class="lineno"> 6090</span><span class="comment">   *</span></div>
-<div class="line"><a id="l06091" name="l06091"></a><span class="lineno"> 6091</span><span class="comment">   * We&#39;re not overly conservative, either; i.e., no one is likely to complain this policy is too</span></div>
-<div class="line"><a id="l06092" name="l06092"></a><span class="lineno"> 6092</span><span class="comment">   * stingy. */</span></div>
-<div class="line"><a id="l06093" name="l06093"></a><span class="lineno"> 6093</span>  <span class="keywordflow">return</span> sock-&gt;m_snd_buf.data_size() + sock-&gt;max_block_size()</div>
-<div class="line"><a id="l06094" name="l06094"></a><span class="lineno"> 6094</span>           &lt;= sock-&gt;opt(sock-&gt;m_opts.m_st_snd_buf_max_size);</div>
-<div class="line"><a id="l06095" name="l06095"></a><span class="lineno"> 6095</span>}</div>
-<div class="line"><a id="l06096" name="l06096"></a><span class="lineno"> 6096</span> </div>
-<div class="line"><a id="l06097" name="l06097"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a8cae2884eaf67d77c9f8cf56b31e4c4b"> 6097</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a8cae2884eaf67d77c9f8cf56b31e4c4b">Node::rcv_buf_deqable</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
-<div class="line"><a id="l06098" name="l06098"></a><span class="lineno"> 6098</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l06099" name="l06099"></a><span class="lineno"> 6099</span>  <span class="comment">// See doc comment for rationale for keeping this in a function.</span></div>
-<div class="line"><a id="l06100" name="l06100"></a><span class="lineno"> 6100</span>  <span class="keywordflow">return</span> !sock-&gt;m_rcv_buf.empty();</div>
+<div class="line"><a id="l06082" name="l06082"></a><span class="lineno"> 6082</span>  <span class="comment">// There is stuff to send if there is anything to retransmit or at least new user data.</span></div>
+<div class="line"><a id="l06083" name="l06083"></a><span class="lineno"> 6083</span>  <span class="keywordflow">return</span> !(sock-&gt;m_snd_rexmit_q.empty() &amp;&amp; sock-&gt;m_snd_buf.empty());</div>
+<div class="line"><a id="l06084" name="l06084"></a><span class="lineno"> 6084</span>}</div>
+<div class="line"><a id="l06085" name="l06085"></a><span class="lineno"> 6085</span> </div>
+<div class="line"><a id="l06086" name="l06086"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a70d124ba678e2ab72f8c6d28140ca137"> 6086</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a70d124ba678e2ab72f8c6d28140ca137">Node::snd_buf_enqable</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
+<div class="line"><a id="l06087" name="l06087"></a><span class="lineno"> 6087</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l06088" name="l06088"></a><span class="lineno"> 6088</span>  <span class="comment">// See doc comment for rationale for keeping this in a function.</span></div>
+<div class="line"><a id="l06089" name="l06089"></a><span class="lineno"> 6089</span> </div>
+<div class="line"><a id="l06090" name="l06090"></a><span class="lineno"> 6090</span>  <span class="comment">/* Since 1 block can be at most max-block-size, if that much space is free, then definitely one</span></div>
+<div class="line"><a id="l06091" name="l06091"></a><span class="lineno"> 6091</span><span class="comment">   * can enqueue onto m_snd_buf.  Note that if less than max-block-size space is free, it would</span></div>
+<div class="line"><a id="l06092" name="l06092"></a><span class="lineno"> 6092</span><span class="comment">   * still be possible to enqueue a smaller block; yet we still return false.  We are intentionally</span></div>
+<div class="line"><a id="l06093" name="l06093"></a><span class="lineno"> 6093</span><span class="comment">   * conservative, because we are guaranteeing ANY one enqueueing will work.  More importantly, this</span></div>
+<div class="line"><a id="l06094" name="l06094"></a><span class="lineno"> 6094</span><span class="comment">   * guarantees our Socket_buffer scheme (see class doc header) to guarantee constant-time</span></div>
+<div class="line"><a id="l06095" name="l06095"></a><span class="lineno"> 6095</span><span class="comment">   * dequeueing will work.</span></div>
+<div class="line"><a id="l06096" name="l06096"></a><span class="lineno"> 6096</span><span class="comment">   *</span></div>
+<div class="line"><a id="l06097" name="l06097"></a><span class="lineno"> 6097</span><span class="comment">   * We&#39;re not overly conservative, either; i.e., no one is likely to complain this policy is too</span></div>
+<div class="line"><a id="l06098" name="l06098"></a><span class="lineno"> 6098</span><span class="comment">   * stingy. */</span></div>
+<div class="line"><a id="l06099" name="l06099"></a><span class="lineno"> 6099</span>  <span class="keywordflow">return</span> sock-&gt;m_snd_buf.data_size() + sock-&gt;max_block_size()</div>
+<div class="line"><a id="l06100" name="l06100"></a><span class="lineno"> 6100</span>           &lt;= sock-&gt;opt(sock-&gt;m_opts.m_st_snd_buf_max_size);</div>
 <div class="line"><a id="l06101" name="l06101"></a><span class="lineno"> 6101</span>}</div>
 <div class="line"><a id="l06102" name="l06102"></a><span class="lineno"> 6102</span> </div>
-<div class="line"><a id="l06103" name="l06103"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#aa1d9656e9e1480021c87530ec6dbebbe"> 6103</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa1d9656e9e1480021c87530ec6dbebbe">Node::sock_set_int_state</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">Peer_socket::Int_state</a> new_state)</div>
-<div class="line"><a id="l06104" name="l06104"></a><span class="lineno"> 6104</span>{</div>
-<div class="line"><a id="l06105" name="l06105"></a><span class="lineno"> 6105</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l06106" name="l06106"></a><span class="lineno"> 6106</span> </div>
-<div class="line"><a id="l06107" name="l06107"></a><span class="lineno"> 6107</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] changing state from [&quot;</span> &lt;&lt;</div>
-<div class="line"><a id="l06108" name="l06108"></a><span class="lineno"> 6108</span>                 sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;] to [&quot;</span> &lt;&lt; new_state &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
-<div class="line"><a id="l06109" name="l06109"></a><span class="lineno"> 6109</span>  sock-&gt;m_int_state = new_state;</div>
-<div class="line"><a id="l06110" name="l06110"></a><span class="lineno"> 6110</span>}</div>
-<div class="line"><a id="l06111" name="l06111"></a><span class="lineno"> 6111</span> </div>
-<div class="line"><a id="l06112" name="l06112"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280"> 6112</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">Node::sock_set_state</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">Peer_socket::State</a> state, <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">Peer_socket::Open_sub_state</a> open_sub_state)</div>
-<div class="line"><a id="l06113" name="l06113"></a><span class="lineno"> 6113</span>{</div>
-<div class="line"><a id="l06114" name="l06114"></a><span class="lineno"> 6114</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex);</div>
-<div class="line"><a id="l06115" name="l06115"></a><span class="lineno"> 6115</span> </div>
-<div class="line"><a id="l06116" name="l06116"></a><span class="lineno"> 6116</span>  <span class="comment">// @todo Add TRACE logging.</span></div>
+<div class="line"><a id="l06103" name="l06103"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a8cae2884eaf67d77c9f8cf56b31e4c4b"> 6103</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a8cae2884eaf67d77c9f8cf56b31e4c4b">Node::rcv_buf_deqable</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
+<div class="line"><a id="l06104" name="l06104"></a><span class="lineno"> 6104</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l06105" name="l06105"></a><span class="lineno"> 6105</span>  <span class="comment">// See doc comment for rationale for keeping this in a function.</span></div>
+<div class="line"><a id="l06106" name="l06106"></a><span class="lineno"> 6106</span>  <span class="keywordflow">return</span> !sock-&gt;m_rcv_buf.empty();</div>
+<div class="line"><a id="l06107" name="l06107"></a><span class="lineno"> 6107</span>}</div>
+<div class="line"><a id="l06108" name="l06108"></a><span class="lineno"> 6108</span> </div>
+<div class="line"><a id="l06109" name="l06109"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#aa1d9656e9e1480021c87530ec6dbebbe"> 6109</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aa1d9656e9e1480021c87530ec6dbebbe">Node::sock_set_int_state</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">Peer_socket::Int_state</a> new_state)</div>
+<div class="line"><a id="l06110" name="l06110"></a><span class="lineno"> 6110</span>{</div>
+<div class="line"><a id="l06111" name="l06111"></a><span class="lineno"> 6111</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l06112" name="l06112"></a><span class="lineno"> 6112</span> </div>
+<div class="line"><a id="l06113" name="l06113"></a><span class="lineno"> 6113</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="charliteral">&#39;[&#39;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;] changing state from [&quot;</span> &lt;&lt;</div>
+<div class="line"><a id="l06114" name="l06114"></a><span class="lineno"> 6114</span>                 sock-&gt;m_int_state &lt;&lt; <span class="stringliteral">&quot;] to [&quot;</span> &lt;&lt; new_state &lt;&lt; <span class="stringliteral">&quot;].&quot;</span>);</div>
+<div class="line"><a id="l06115" name="l06115"></a><span class="lineno"> 6115</span>  sock-&gt;m_int_state = new_state;</div>
+<div class="line"><a id="l06116" name="l06116"></a><span class="lineno"> 6116</span>}</div>
 <div class="line"><a id="l06117" name="l06117"></a><span class="lineno"> 6117</span> </div>
-<div class="line"><a id="l06118" name="l06118"></a><span class="lineno"> 6118</span>  sock-&gt;m_state = state;</div>
-<div class="line"><a id="l06119" name="l06119"></a><span class="lineno"> 6119</span>  <span class="keywordflow">if</span> (state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>)</div>
-<div class="line"><a id="l06120" name="l06120"></a><span class="lineno"> 6120</span>  {</div>
-<div class="line"><a id="l06121" name="l06121"></a><span class="lineno"> 6121</span>    sock-&gt;m_open_sub_state = open_sub_state;</div>
-<div class="line"><a id="l06122" name="l06122"></a><span class="lineno"> 6122</span>  }</div>
-<div class="line"><a id="l06123" name="l06123"></a><span class="lineno"> 6123</span>  <span class="keywordflow">else</span> <span class="comment">// (state == Peer_socket::State::S_CLOSED)</span></div>
-<div class="line"><a id="l06124" name="l06124"></a><span class="lineno"> 6124</span>  {</div>
-<div class="line"><a id="l06125" name="l06125"></a><span class="lineno"> 6125</span>    <span class="comment">/* Important convention: S_CLOSED means socket is permanently incapable of sending or</span></div>
-<div class="line"><a id="l06126" name="l06126"></a><span class="lineno"> 6126</span><span class="comment">     * receiving more data.  At this point the originating Node removes the socket from its internal</span></div>
-<div class="line"><a id="l06127" name="l06127"></a><span class="lineno"> 6127</span><span class="comment">     * structures.  Therefore, the Node itself may even go away -- while this Peer_socket still</span></div>
-<div class="line"><a id="l06128" name="l06128"></a><span class="lineno"> 6128</span><span class="comment">     * exists.  Since we use shared_ptr when giving our socket objects, that&#39;s fine -- but we want to</span></div>
-<div class="line"><a id="l06129" name="l06129"></a><span class="lineno"> 6129</span><span class="comment">     * avoid returning an invalid Node* in node().  So, when S_CLOSED, sock-&gt;m_node = 0. */</span></div>
-<div class="line"><a id="l06130" name="l06130"></a><span class="lineno"> 6130</span>    sock-&gt;m_node = 0;</div>
-<div class="line"><a id="l06131" name="l06131"></a><span class="lineno"> 6131</span>  }</div>
-<div class="line"><a id="l06132" name="l06132"></a><span class="lineno"> 6132</span>}</div>
-<div class="line"><a id="l06133" name="l06133"></a><span class="lineno"> 6133</span> </div>
-<div class="line"><a id="l06134" name="l06134"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ada9357f6ce9d5fc249b1cc176afdc471"> 6134</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ada9357f6ce9d5fc249b1cc176afdc471">Node::sock_disconnect_detected</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>&amp; disconnect_cause, <span class="keywordtype">bool</span> close)</div>
-<div class="line"><a id="l06135" name="l06135"></a><span class="lineno"> 6135</span>{</div>
-<div class="line"><a id="l06136" name="l06136"></a><span class="lineno"> 6136</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex);</div>
-<div class="line"><a id="l06137" name="l06137"></a><span class="lineno"> 6137</span> </div>
-<div class="line"><a id="l06138" name="l06138"></a><span class="lineno"> 6138</span>  sock-&gt;m_disconnect_cause = disconnect_cause;</div>
+<div class="line"><a id="l06118" name="l06118"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280"> 6118</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">Node::sock_set_state</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">Peer_socket::State</a> state, <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">Peer_socket::Open_sub_state</a> open_sub_state)</div>
+<div class="line"><a id="l06119" name="l06119"></a><span class="lineno"> 6119</span>{</div>
+<div class="line"><a id="l06120" name="l06120"></a><span class="lineno"> 6120</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex);</div>
+<div class="line"><a id="l06121" name="l06121"></a><span class="lineno"> 6121</span> </div>
+<div class="line"><a id="l06122" name="l06122"></a><span class="lineno"> 6122</span>  <span class="comment">// @todo Add TRACE logging.</span></div>
+<div class="line"><a id="l06123" name="l06123"></a><span class="lineno"> 6123</span> </div>
+<div class="line"><a id="l06124" name="l06124"></a><span class="lineno"> 6124</span>  sock-&gt;m_state = state;</div>
+<div class="line"><a id="l06125" name="l06125"></a><span class="lineno"> 6125</span>  <span class="keywordflow">if</span> (state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>)</div>
+<div class="line"><a id="l06126" name="l06126"></a><span class="lineno"> 6126</span>  {</div>
+<div class="line"><a id="l06127" name="l06127"></a><span class="lineno"> 6127</span>    sock-&gt;m_open_sub_state = open_sub_state;</div>
+<div class="line"><a id="l06128" name="l06128"></a><span class="lineno"> 6128</span>  }</div>
+<div class="line"><a id="l06129" name="l06129"></a><span class="lineno"> 6129</span>  <span class="keywordflow">else</span> <span class="comment">// (state == Peer_socket::State::S_CLOSED)</span></div>
+<div class="line"><a id="l06130" name="l06130"></a><span class="lineno"> 6130</span>  {</div>
+<div class="line"><a id="l06131" name="l06131"></a><span class="lineno"> 6131</span>    <span class="comment">/* Important convention: S_CLOSED means socket is permanently incapable of sending or</span></div>
+<div class="line"><a id="l06132" name="l06132"></a><span class="lineno"> 6132</span><span class="comment">     * receiving more data.  At this point the originating Node removes the socket from its internal</span></div>
+<div class="line"><a id="l06133" name="l06133"></a><span class="lineno"> 6133</span><span class="comment">     * structures.  Therefore, the Node itself may even go away -- while this Peer_socket still</span></div>
+<div class="line"><a id="l06134" name="l06134"></a><span class="lineno"> 6134</span><span class="comment">     * exists.  Since we use shared_ptr when giving our socket objects, that&#39;s fine -- but we want to</span></div>
+<div class="line"><a id="l06135" name="l06135"></a><span class="lineno"> 6135</span><span class="comment">     * avoid returning an invalid Node* in node().  So, when S_CLOSED, sock-&gt;m_node = 0. */</span></div>
+<div class="line"><a id="l06136" name="l06136"></a><span class="lineno"> 6136</span>    sock-&gt;m_node = 0;</div>
+<div class="line"><a id="l06137" name="l06137"></a><span class="lineno"> 6137</span>  }</div>
+<div class="line"><a id="l06138" name="l06138"></a><span class="lineno"> 6138</span>}</div>
 <div class="line"><a id="l06139" name="l06139"></a><span class="lineno"> 6139</span> </div>
-<div class="line"><a id="l06140" name="l06140"></a><span class="lineno"> 6140</span>  <span class="keywordflow">if</span> (close)</div>
-<div class="line"><a id="l06141" name="l06141"></a><span class="lineno"> 6141</span>  {</div>
-<div class="line"><a id="l06142" name="l06142"></a><span class="lineno"> 6142</span>    <span class="comment">// DONE.</span></div>
-<div class="line"><a id="l06143" name="l06143"></a><span class="lineno"> 6143</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">sock_set_state</a>(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>); <span class="comment">// Reentrant mutex =&gt; OK.</span></div>
-<div class="line"><a id="l06144" name="l06144"></a><span class="lineno"> 6144</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a1d5f13062bec6730db533cc1e89bf515">sock_free_memory</a>(sock);</div>
-<div class="line"><a id="l06145" name="l06145"></a><span class="lineno"> 6145</span>  }</div>
-<div class="line"><a id="l06146" name="l06146"></a><span class="lineno"> 6146</span>  <span class="keywordflow">else</span></div>
+<div class="line"><a id="l06140" name="l06140"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ada9357f6ce9d5fc249b1cc176afdc471"> 6140</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ada9357f6ce9d5fc249b1cc176afdc471">Node::sock_disconnect_detected</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>&amp; disconnect_cause, <span class="keywordtype">bool</span> close)</div>
+<div class="line"><a id="l06141" name="l06141"></a><span class="lineno"> 6141</span>{</div>
+<div class="line"><a id="l06142" name="l06142"></a><span class="lineno"> 6142</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex);</div>
+<div class="line"><a id="l06143" name="l06143"></a><span class="lineno"> 6143</span> </div>
+<div class="line"><a id="l06144" name="l06144"></a><span class="lineno"> 6144</span>  sock-&gt;m_disconnect_cause = disconnect_cause;</div>
+<div class="line"><a id="l06145" name="l06145"></a><span class="lineno"> 6145</span> </div>
+<div class="line"><a id="l06146" name="l06146"></a><span class="lineno"> 6146</span>  <span class="keywordflow">if</span> (close)</div>
 <div class="line"><a id="l06147" name="l06147"></a><span class="lineno"> 6147</span>  {</div>
-<div class="line"><a id="l06148" name="l06148"></a><span class="lineno"> 6148</span>    <span class="comment">// This socket is screwed, but let user get any remaining buffer data out.</span></div>
-<div class="line"><a id="l06149" name="l06149"></a><span class="lineno"> 6149</span> </div>
-<div class="line"><a id="l06150" name="l06150"></a><span class="lineno"> 6150</span>    <span class="comment">// Reentrant mutex =&gt; OK:</span></div>
-<div class="line"><a id="l06151" name="l06151"></a><span class="lineno"> 6151</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">sock_set_state</a>(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>);</div>
-<div class="line"><a id="l06152" name="l06152"></a><span class="lineno"> 6152</span>  }</div>
-<div class="line"><a id="l06153" name="l06153"></a><span class="lineno"> 6153</span>}</div>
-<div class="line"><a id="l06154" name="l06154"></a><span class="lineno"> 6154</span> </div>
-<div class="line"><a id="l06155" name="l06155"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ade529b5452c9fe363ae468346e662ceb"> 6155</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ade529b5452c9fe363ae468346e662ceb">Node::sock_disconnect_completed</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
-<div class="line"><a id="l06156" name="l06156"></a><span class="lineno"> 6156</span>{</div>
-<div class="line"><a id="l06157" name="l06157"></a><span class="lineno"> 6157</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex);</div>
-<div class="line"><a id="l06158" name="l06158"></a><span class="lineno"> 6158</span> </div>
-<div class="line"><a id="l06159" name="l06159"></a><span class="lineno"> 6159</span>  <span class="comment">// Sanity-check pre-conditions.  (Basically ensure disconnect_detected(err_code, false) was previously called.)</span></div>
-<div class="line"><a id="l06160" name="l06160"></a><span class="lineno"> 6160</span>  assert(sock-&gt;m_disconnect_cause);</div>
-<div class="line"><a id="l06161" name="l06161"></a><span class="lineno"> 6161</span>  assert((sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>)</div>
-<div class="line"><a id="l06162" name="l06162"></a><span class="lineno"> 6162</span>         &amp;&amp; (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>));</div>
-<div class="line"><a id="l06163" name="l06163"></a><span class="lineno"> 6163</span> </div>
-<div class="line"><a id="l06164" name="l06164"></a><span class="lineno"> 6164</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">sock_set_state</a>(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>); <span class="comment">// Reentrant mutex =&gt; OK.</span></div>
-<div class="line"><a id="l06165" name="l06165"></a><span class="lineno"> 6165</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a1d5f13062bec6730db533cc1e89bf515">sock_free_memory</a>(sock);</div>
-<div class="line"><a id="l06166" name="l06166"></a><span class="lineno"> 6166</span>}</div>
-<div class="line"><a id="l06167" name="l06167"></a><span class="lineno"> 6167</span> </div>
-<div class="line"><a id="l06168" name="l06168"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a1d5f13062bec6730db533cc1e89bf515"> 6168</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a1d5f13062bec6730db533cc1e89bf515">Node::sock_free_memory</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
-<div class="line"><a id="l06169" name="l06169"></a><span class="lineno"> 6169</span>{</div>
-<div class="line"><a id="l06170" name="l06170"></a><span class="lineno"> 6170</span>  sock-&gt;m_rcv_buf.clear();</div>
-<div class="line"><a id="l06171" name="l06171"></a><span class="lineno"> 6171</span>  sock-&gt;m_snd_buf.clear();</div>
-<div class="line"><a id="l06172" name="l06172"></a><span class="lineno"> 6172</span>  sock-&gt;m_rcv_packets_with_gaps.clear();</div>
-<div class="line"><a id="l06173" name="l06173"></a><span class="lineno"> 6173</span>  sock-&gt;m_rcv_reassembly_q_data_size = 0;</div>
-<div class="line"><a id="l06174" name="l06174"></a><span class="lineno"> 6174</span>  sock-&gt;m_snd_flying_pkts_by_sent_when.clear();</div>
-<div class="line"><a id="l06175" name="l06175"></a><span class="lineno"> 6175</span>  sock-&gt;m_snd_flying_pkts_by_seq_num.clear();</div>
-<div class="line"><a id="l06176" name="l06176"></a><span class="lineno"> 6176</span>  sock-&gt;m_snd_rexmit_q.clear();</div>
-<div class="line"><a id="l06177" name="l06177"></a><span class="lineno"> 6177</span>  sock-&gt;m_serialized_metadata.make_zero(); <span class="comment">// clear() does not deallocate, but this does.</span></div>
-<div class="line"><a id="l06178" name="l06178"></a><span class="lineno"> 6178</span>  sock-&gt;m_rcv_syn_rcvd_data_q.clear();</div>
-<div class="line"><a id="l06179" name="l06179"></a><span class="lineno"> 6179</span>  sock-&gt;m_rcv_pending_acks.clear();</div>
-<div class="line"><a id="l06180" name="l06180"></a><span class="lineno"> 6180</span>  sock-&gt;m_rcv_acked_packets.clear();</div>
-<div class="line"><a id="l06181" name="l06181"></a><span class="lineno"> 6181</span>  sock-&gt;m_snd_pacing_data.m_packet_q.clear();</div>
-<div class="line"><a id="l06182" name="l06182"></a><span class="lineno"> 6182</span> </div>
-<div class="line"><a id="l06183" name="l06183"></a><span class="lineno"> 6183</span>  <span class="comment">/* Destroy memory stored in m_snd_cong_ctl which may be non-O(1).  This is a little questionable;</span></div>
-<div class="line"><a id="l06184" name="l06184"></a><span class="lineno"> 6184</span><span class="comment">   * maybe should leave it to destructor?  However since we store it as a pointer and are to free</span></div>
-<div class="line"><a id="l06185" name="l06185"></a><span class="lineno"> 6185</span><span class="comment">   * any &quot;significant&quot; memory, and this may be significant, we may as well just delete it. */</span></div>
-<div class="line"><a id="l06186" name="l06186"></a><span class="lineno"> 6186</span>  sock-&gt;m_snd_cong_ctl.reset();</div>
-<div class="line"><a id="l06187" name="l06187"></a><span class="lineno"> 6187</span>  <span class="comment">// Same deal.</span></div>
-<div class="line"><a id="l06188" name="l06188"></a><span class="lineno"> 6188</span>  sock-&gt;m_snd_bandwidth_estimator.reset();</div>
-<div class="line"><a id="l06189" name="l06189"></a><span class="lineno"> 6189</span>}</div>
-<div class="line"><a id="l06190" name="l06190"></a><span class="lineno"> 6190</span> </div>
-<div class="line"><a id="l06191" name="l06191"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#aadea4a9941c6138d9c025401b1f85ceb"> 6191</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aadea4a9941c6138d9c025401b1f85ceb">Node::sock_set_options</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>&amp; opts, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l06192" name="l06192"></a><span class="lineno"> 6192</span>{</div>
-<div class="line"><a id="l06193" name="l06193"></a><span class="lineno"> 6193</span>  <span class="comment">// We are in thread U != W.</span></div>
-<div class="line"><a id="l06194" name="l06194"></a><span class="lineno"> 6194</span> </div>
-<div class="line"><a id="l06195" name="l06195"></a><span class="lineno"> 6195</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">running</a>())</div>
-<div class="line"><a id="l06196" name="l06196"></a><span class="lineno"> 6196</span>  {</div>
-<div class="line"><a id="l06197" name="l06197"></a><span class="lineno"> 6197</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>);</div>
-<div class="line"><a id="l06198" name="l06198"></a><span class="lineno"> 6198</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
-<div class="line"><a id="l06199" name="l06199"></a><span class="lineno"> 6199</span>  }</div>
-<div class="line"><a id="l06200" name="l06200"></a><span class="lineno"> 6200</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l06201" name="l06201"></a><span class="lineno"> 6201</span> </div>
-<div class="line"><a id="l06202" name="l06202"></a><span class="lineno"> 6202</span>  <span class="comment">/* We just want to replace m_opts with a copy of opts.  First validate opts (including with</span></div>
-<div class="line"><a id="l06203" name="l06203"></a><span class="lineno"> 6203</span><span class="comment">   * respect to m_opts, and also check for invalid values and such), then copy it over. */</span></div>
-<div class="line"><a id="l06204" name="l06204"></a><span class="lineno"> 6204</span> </div>
-<div class="line"><a id="l06205" name="l06205"></a><span class="lineno"> 6205</span>  <span class="comment">// Log new options values.  A bit computationally expensive so just use TRACE for now.  @todo Reconsider?</span></div>
-<div class="line"><a id="l06206" name="l06206"></a><span class="lineno"> 6206</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;For [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]:\n\n&quot;</span> &lt;&lt; opts);</div>
+<div class="line"><a id="l06148" name="l06148"></a><span class="lineno"> 6148</span>    <span class="comment">// DONE.</span></div>
+<div class="line"><a id="l06149" name="l06149"></a><span class="lineno"> 6149</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">sock_set_state</a>(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>); <span class="comment">// Reentrant mutex =&gt; OK.</span></div>
+<div class="line"><a id="l06150" name="l06150"></a><span class="lineno"> 6150</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a1d5f13062bec6730db533cc1e89bf515">sock_free_memory</a>(sock);</div>
+<div class="line"><a id="l06151" name="l06151"></a><span class="lineno"> 6151</span>  }</div>
+<div class="line"><a id="l06152" name="l06152"></a><span class="lineno"> 6152</span>  <span class="keywordflow">else</span></div>
+<div class="line"><a id="l06153" name="l06153"></a><span class="lineno"> 6153</span>  {</div>
+<div class="line"><a id="l06154" name="l06154"></a><span class="lineno"> 6154</span>    <span class="comment">// This socket is screwed, but let user get any remaining buffer data out.</span></div>
+<div class="line"><a id="l06155" name="l06155"></a><span class="lineno"> 6155</span> </div>
+<div class="line"><a id="l06156" name="l06156"></a><span class="lineno"> 6156</span>    <span class="comment">// Reentrant mutex =&gt; OK:</span></div>
+<div class="line"><a id="l06157" name="l06157"></a><span class="lineno"> 6157</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">sock_set_state</a>(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>);</div>
+<div class="line"><a id="l06158" name="l06158"></a><span class="lineno"> 6158</span>  }</div>
+<div class="line"><a id="l06159" name="l06159"></a><span class="lineno"> 6159</span>}</div>
+<div class="line"><a id="l06160" name="l06160"></a><span class="lineno"> 6160</span> </div>
+<div class="line"><a id="l06161" name="l06161"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#ade529b5452c9fe363ae468346e662ceb"> 6161</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ade529b5452c9fe363ae468346e662ceb">Node::sock_disconnect_completed</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
+<div class="line"><a id="l06162" name="l06162"></a><span class="lineno"> 6162</span>{</div>
+<div class="line"><a id="l06163" name="l06163"></a><span class="lineno"> 6163</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex);</div>
+<div class="line"><a id="l06164" name="l06164"></a><span class="lineno"> 6164</span> </div>
+<div class="line"><a id="l06165" name="l06165"></a><span class="lineno"> 6165</span>  <span class="comment">// Sanity-check pre-conditions.  (Basically ensure disconnect_detected(err_code, false) was previously called.)</span></div>
+<div class="line"><a id="l06166" name="l06166"></a><span class="lineno"> 6166</span>  assert(sock-&gt;m_disconnect_cause);</div>
+<div class="line"><a id="l06167" name="l06167"></a><span class="lineno"> 6167</span>  assert((sock-&gt;m_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">Peer_socket::State::S_OPEN</a>)</div>
+<div class="line"><a id="l06168" name="l06168"></a><span class="lineno"> 6168</span>         &amp;&amp; (sock-&gt;m_open_sub_state == <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">Peer_socket::Open_sub_state::S_DISCONNECTING</a>));</div>
+<div class="line"><a id="l06169" name="l06169"></a><span class="lineno"> 6169</span> </div>
+<div class="line"><a id="l06170" name="l06170"></a><span class="lineno"> 6170</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">sock_set_state</a>(sock, <a class="code hl_enumvalue" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">Peer_socket::State::S_CLOSED</a>); <span class="comment">// Reentrant mutex =&gt; OK.</span></div>
+<div class="line"><a id="l06171" name="l06171"></a><span class="lineno"> 6171</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a1d5f13062bec6730db533cc1e89bf515">sock_free_memory</a>(sock);</div>
+<div class="line"><a id="l06172" name="l06172"></a><span class="lineno"> 6172</span>}</div>
+<div class="line"><a id="l06173" name="l06173"></a><span class="lineno"> 6173</span> </div>
+<div class="line"><a id="l06174" name="l06174"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a1d5f13062bec6730db533cc1e89bf515"> 6174</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a1d5f13062bec6730db533cc1e89bf515">Node::sock_free_memory</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock)</div>
+<div class="line"><a id="l06175" name="l06175"></a><span class="lineno"> 6175</span>{</div>
+<div class="line"><a id="l06176" name="l06176"></a><span class="lineno"> 6176</span>  sock-&gt;m_rcv_buf.clear();</div>
+<div class="line"><a id="l06177" name="l06177"></a><span class="lineno"> 6177</span>  sock-&gt;m_snd_buf.clear();</div>
+<div class="line"><a id="l06178" name="l06178"></a><span class="lineno"> 6178</span>  sock-&gt;m_rcv_packets_with_gaps.clear();</div>
+<div class="line"><a id="l06179" name="l06179"></a><span class="lineno"> 6179</span>  sock-&gt;m_rcv_reassembly_q_data_size = 0;</div>
+<div class="line"><a id="l06180" name="l06180"></a><span class="lineno"> 6180</span>  sock-&gt;m_snd_flying_pkts_by_sent_when.clear();</div>
+<div class="line"><a id="l06181" name="l06181"></a><span class="lineno"> 6181</span>  sock-&gt;m_snd_flying_pkts_by_seq_num.clear();</div>
+<div class="line"><a id="l06182" name="l06182"></a><span class="lineno"> 6182</span>  sock-&gt;m_snd_rexmit_q.clear();</div>
+<div class="line"><a id="l06183" name="l06183"></a><span class="lineno"> 6183</span>  sock-&gt;m_serialized_metadata.make_zero(); <span class="comment">// clear() does not deallocate, but this does.</span></div>
+<div class="line"><a id="l06184" name="l06184"></a><span class="lineno"> 6184</span>  sock-&gt;m_rcv_syn_rcvd_data_q.clear();</div>
+<div class="line"><a id="l06185" name="l06185"></a><span class="lineno"> 6185</span>  sock-&gt;m_rcv_pending_acks.clear();</div>
+<div class="line"><a id="l06186" name="l06186"></a><span class="lineno"> 6186</span>  sock-&gt;m_rcv_acked_packets.clear();</div>
+<div class="line"><a id="l06187" name="l06187"></a><span class="lineno"> 6187</span>  sock-&gt;m_snd_pacing_data.m_packet_q.clear();</div>
+<div class="line"><a id="l06188" name="l06188"></a><span class="lineno"> 6188</span> </div>
+<div class="line"><a id="l06189" name="l06189"></a><span class="lineno"> 6189</span>  <span class="comment">/* Destroy memory stored in m_snd_cong_ctl which may be non-O(1).  This is a little questionable;</span></div>
+<div class="line"><a id="l06190" name="l06190"></a><span class="lineno"> 6190</span><span class="comment">   * maybe should leave it to destructor?  However since we store it as a pointer and are to free</span></div>
+<div class="line"><a id="l06191" name="l06191"></a><span class="lineno"> 6191</span><span class="comment">   * any &quot;significant&quot; memory, and this may be significant, we may as well just delete it. */</span></div>
+<div class="line"><a id="l06192" name="l06192"></a><span class="lineno"> 6192</span>  sock-&gt;m_snd_cong_ctl.reset();</div>
+<div class="line"><a id="l06193" name="l06193"></a><span class="lineno"> 6193</span>  <span class="comment">// Same deal.</span></div>
+<div class="line"><a id="l06194" name="l06194"></a><span class="lineno"> 6194</span>  sock-&gt;m_snd_bandwidth_estimator.reset();</div>
+<div class="line"><a id="l06195" name="l06195"></a><span class="lineno"> 6195</span>}</div>
+<div class="line"><a id="l06196" name="l06196"></a><span class="lineno"> 6196</span> </div>
+<div class="line"><a id="l06197" name="l06197"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#aadea4a9941c6138d9c025401b1f85ceb"> 6197</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aadea4a9941c6138d9c025401b1f85ceb">Node::sock_set_options</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock, <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>&amp; opts, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l06198" name="l06198"></a><span class="lineno"> 6198</span>{</div>
+<div class="line"><a id="l06199" name="l06199"></a><span class="lineno"> 6199</span>  <span class="comment">// We are in thread U != W.</span></div>
+<div class="line"><a id="l06200" name="l06200"></a><span class="lineno"> 6200</span> </div>
+<div class="line"><a id="l06201" name="l06201"></a><span class="lineno"> 6201</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">running</a>())</div>
+<div class="line"><a id="l06202" name="l06202"></a><span class="lineno"> 6202</span>  {</div>
+<div class="line"><a id="l06203" name="l06203"></a><span class="lineno"> 6203</span>    <a class="code hl_define" href="error_2error_8hpp.html#ab6b8ed79012c994cfc381e0b92c066fd">FLOW_ERROR_EMIT_ERROR</a>(<a class="code hl_enumvalue" href="namespaceflow_1_1net__flow_1_1error.html#a18e13de77b119ea0f2be411490859482affac5d80b4e72f2e55bbbfadce2efd2e">error::Code::S_NODE_NOT_RUNNING</a>);</div>
+<div class="line"><a id="l06204" name="l06204"></a><span class="lineno"> 6204</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
+<div class="line"><a id="l06205" name="l06205"></a><span class="lineno"> 6205</span>  }</div>
+<div class="line"><a id="l06206" name="l06206"></a><span class="lineno"> 6206</span>  <span class="comment">// else</span></div>
 <div class="line"><a id="l06207" name="l06207"></a><span class="lineno"> 6207</span> </div>
-<div class="line"><a id="l06208" name="l06208"></a><span class="lineno"> 6208</span>  <span class="comment">// Will be writing sock-&gt;m_opts if all goes well, so must acquire exclusive ownership of m_opts.</span></div>
-<div class="line"><a id="l06209" name="l06209"></a><span class="lineno"> 6209</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">Peer_socket::Options_lock</a> lock(sock-&gt;m_opts_mutex);</div>
+<div class="line"><a id="l06208" name="l06208"></a><span class="lineno"> 6208</span>  <span class="comment">/* We just want to replace m_opts with a copy of opts.  First validate opts (including with</span></div>
+<div class="line"><a id="l06209" name="l06209"></a><span class="lineno"> 6209</span><span class="comment">   * respect to m_opts, and also check for invalid values and such), then copy it over. */</span></div>
 <div class="line"><a id="l06210" name="l06210"></a><span class="lineno"> 6210</span> </div>
-<div class="line"><a id="l06211" name="l06211"></a><span class="lineno"> 6211</span>  <span class="comment">/* Validate the new option set (including ensuring they&#39;re not changing static options&#39; values).</span></div>
-<div class="line"><a id="l06212" name="l06212"></a><span class="lineno"> 6212</span><span class="comment">   * Note that an explicit pre-condition of this method is that m_opts_mutex is locked if needed,</span></div>
-<div class="line"><a id="l06213" name="l06213"></a><span class="lineno"> 6213</span><span class="comment">   * hence the above locking statement is not below this call. */</span></div>
-<div class="line"><a id="l06214" name="l06214"></a><span class="lineno"> 6214</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276">sock_validate_options</a>(opts, &amp;sock-&gt;m_opts, err_code))</div>
-<div class="line"><a id="l06215" name="l06215"></a><span class="lineno"> 6215</span>  {</div>
-<div class="line"><a id="l06216" name="l06216"></a><span class="lineno"> 6216</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
-<div class="line"><a id="l06217" name="l06217"></a><span class="lineno"> 6217</span>  }</div>
-<div class="line"><a id="l06218" name="l06218"></a><span class="lineno"> 6218</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l06219" name="l06219"></a><span class="lineno"> 6219</span> </div>
-<div class="line"><a id="l06220" name="l06220"></a><span class="lineno"> 6220</span>  <span class="comment">// Boo-ya.</span></div>
-<div class="line"><a id="l06221" name="l06221"></a><span class="lineno"> 6221</span>  sock-&gt;m_opts = opts;</div>
-<div class="line"><a id="l06222" name="l06222"></a><span class="lineno"> 6222</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
-<div class="line"><a id="l06223" name="l06223"></a><span class="lineno"> 6223</span>} <span class="comment">// Node::sock_set_options()</span></div>
-<div class="line"><a id="l06224" name="l06224"></a><span class="lineno"> 6224</span><span class="comment"></span> </div>
-<div class="line"><a id="l06225" name="l06225"></a><span class="lineno"> 6225</span><span class="comment">/// @cond</span></div>
-<div class="line"><a id="l06226" name="l06226"></a><span class="lineno"> 6226</span><span class="comment"></span><span class="comment">/* -^- Doxygen, please ignore the following.  (Don&#39;t want docs generated for temp macro; this is more maintainable</span></div>
-<div class="line"><a id="l06227" name="l06227"></a><span class="lineno"> 6227</span><span class="comment"> * than specifying the macro name to omit it, in Doxygen-config EXCLUDE_SYMBOLS.) */</span></div>
-<div class="line"><a id="l06228" name="l06228"></a><span class="lineno"> 6228</span> </div>
-<div class="line"><a id="l06229" name="l06229"></a><span class="lineno"> 6229</span><span class="comment">/* Normaly I try to avoid macro cleverness, but in this case to get a nice printout we need the</span></div>
-<div class="line"><a id="l06230" name="l06230"></a><span class="lineno"> 6230</span><span class="comment"> * # technique, and also this eliminates quite a bit of repetition.  So let&#39;s.... */</span></div>
-<div class="line"><a id="l06231" name="l06231"></a><span class="lineno"> 6231</span><span class="preprocessor">#define VALIDATE_STATIC_OPTION(ARG_opt) \</span></div>
-<div class="line"><a id="l06232" name="l06232"></a><span class="lineno"> 6232</span><span class="preprocessor">  validate_static_option(opts.ARG_opt, prev_opts-&gt;ARG_opt, #ARG_opt, err_code)</span></div>
-<div class="line"><a id="l06233" name="l06233"></a><span class="lineno"> 6233</span><span class="preprocessor">#define VALIDATE_CHECK(ARG_check) \</span></div>
-<div class="line"><a id="l06234" name="l06234"></a><span class="lineno"> 6234</span><span class="preprocessor">  validate_option_check(ARG_check, #ARG_check, err_code)</span></div>
-<div class="line"><a id="l06235" name="l06235"></a><span class="lineno"> 6235</span> </div>
-<div class="line"><a id="l06236" name="l06236"></a><span class="lineno"> 6236</span><span class="comment">// -v- Doxygen, please stop ignoring.</span><span class="comment"></span></div>
-<div class="line"><a id="l06237" name="l06237"></a><span class="lineno"> 6237</span><span class="comment">/// @endcond</span></div>
-<div class="line"><a id="l06238" name="l06238"></a><span class="lineno"> 6238</span><span class="comment"></span> </div>
-<div class="line"><a id="l06239" name="l06239"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276"> 6239</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276">Node::sock_validate_options</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>&amp; opts,</div>
-<div class="line"><a id="l06240" name="l06240"></a><span class="lineno"> 6240</span>                                 <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* prev_opts,</div>
-<div class="line"><a id="l06241" name="l06241"></a><span class="lineno"> 6241</span>                                 <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)<span class="keyword"> const</span></div>
-<div class="line"><a id="l06242" name="l06242"></a><span class="lineno"> 6242</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l06243" name="l06243"></a><span class="lineno"> 6243</span>  <span class="comment">/* We are to validate the given set of per-socket option values.  If prev_opts, then the context</span></div>
-<div class="line"><a id="l06244" name="l06244"></a><span class="lineno"> 6244</span><span class="comment">   * is that an already-existing socket (with already-set options) is being called with</span></div>
-<div class="line"><a id="l06245" name="l06245"></a><span class="lineno"> 6245</span><span class="comment">   * set_options(), i.e. user is modifying options for an existing socket.  In that case we must</span></div>
-<div class="line"><a id="l06246" name="l06246"></a><span class="lineno"> 6246</span><span class="comment">   * ensure that no static (unchangeable) option&#39;s value would be changed by this.</span></div>
-<div class="line"><a id="l06247" name="l06247"></a><span class="lineno"> 6247</span><span class="comment">   *</span></div>
-<div class="line"><a id="l06248" name="l06248"></a><span class="lineno"> 6248</span><span class="comment">   * If not prev_opts, then the per-socket options within the global per-Node Node_options object</span></div>
-<div class="line"><a id="l06249" name="l06249"></a><span class="lineno"> 6249</span><span class="comment">   * are being changed.  Per-socket options in that context are always dynamic, since if they were</span></div>
-<div class="line"><a id="l06250" name="l06250"></a><span class="lineno"> 6250</span><span class="comment">   * static, there&#39;d be no point in making the per-socket in the first place.  So in that case that</span></div>
-<div class="line"><a id="l06251" name="l06251"></a><span class="lineno"> 6251</span><span class="comment">   * static option check is to be skipped.</span></div>
-<div class="line"><a id="l06252" name="l06252"></a><span class="lineno"> 6252</span><span class="comment">   *</span></div>
-<div class="line"><a id="l06253" name="l06253"></a><span class="lineno"> 6253</span><span class="comment">   * Finally, we must check for individual integrity of the specified values (including consistency</span></div>
-<div class="line"><a id="l06254" name="l06254"></a><span class="lineno"> 6254</span><span class="comment">   * with other option values). */</span></div>
-<div class="line"><a id="l06255" name="l06255"></a><span class="lineno"> 6255</span> </div>
-<div class="line"><a id="l06256" name="l06256"></a><span class="lineno"> 6256</span>  <span class="keyword">using </span>boost::chrono::seconds;</div>
-<div class="line"><a id="l06257" name="l06257"></a><span class="lineno"> 6257</span>  <span class="keyword">using </span>std::numeric_limits;</div>
-<div class="line"><a id="l06258" name="l06258"></a><span class="lineno"> 6258</span> </div>
-<div class="line"><a id="l06259" name="l06259"></a><span class="lineno"> 6259</span>  <span class="comment">// We are in thread U != W or in thread W.</span></div>
-<div class="line"><a id="l06260" name="l06260"></a><span class="lineno"> 6260</span> </div>
-<div class="line"><a id="l06261" name="l06261"></a><span class="lineno"> 6261</span>  <span class="keywordflow">if</span> (prev_opts)</div>
-<div class="line"><a id="l06262" name="l06262"></a><span class="lineno"> 6262</span>  {</div>
-<div class="line"><a id="l06263" name="l06263"></a><span class="lineno"> 6263</span>    <span class="comment">/* As explained above, they&#39;re trying to change an existing socket&#39;s option values.  Ensure</span></div>
-<div class="line"><a id="l06264" name="l06264"></a><span class="lineno"> 6264</span><span class="comment">     * all the static options&#39; values are the same in opts and prev_opts. */</span></div>
-<div class="line"><a id="l06265" name="l06265"></a><span class="lineno"> 6265</span> </div>
-<div class="line"><a id="l06266" name="l06266"></a><span class="lineno"> 6266</span>    <span class="comment">// Explicitly documented pre-condition is that *prev_opts is already locked if necessary.  So don&#39;t lock.</span></div>
-<div class="line"><a id="l06267" name="l06267"></a><span class="lineno"> 6267</span> </div>
-<div class="line"><a id="l06268" name="l06268"></a><span class="lineno"> 6268</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> static_ok</div>
-<div class="line"><a id="l06269" name="l06269"></a><span class="lineno"> 6269</span>      = VALIDATE_STATIC_OPTION(m_st_max_block_size) &amp;&amp;</div>
-<div class="line"><a id="l06270" name="l06270"></a><span class="lineno"> 6270</span>        VALIDATE_STATIC_OPTION(m_st_connect_retransmit_period) &amp;&amp;</div>
-<div class="line"><a id="l06271" name="l06271"></a><span class="lineno"> 6271</span>        VALIDATE_STATIC_OPTION(m_st_connect_retransmit_timeout) &amp;&amp;</div>
-<div class="line"><a id="l06272" name="l06272"></a><span class="lineno"> 6272</span>        VALIDATE_STATIC_OPTION(m_st_snd_buf_max_size) &amp;&amp;</div>
-<div class="line"><a id="l06273" name="l06273"></a><span class="lineno"> 6273</span>        VALIDATE_STATIC_OPTION(m_st_rcv_buf_max_size) &amp;&amp;</div>
-<div class="line"><a id="l06274" name="l06274"></a><span class="lineno"> 6274</span>        VALIDATE_STATIC_OPTION(m_st_rcv_flow_control_on) &amp;&amp;</div>
-<div class="line"><a id="l06275" name="l06275"></a><span class="lineno"> 6275</span>        VALIDATE_STATIC_OPTION(m_st_rcv_buf_max_size_slack_percent) &amp;&amp;</div>
-<div class="line"><a id="l06276" name="l06276"></a><span class="lineno"> 6276</span>        VALIDATE_STATIC_OPTION(m_st_rcv_buf_max_size_to_advertise_percent) &amp;&amp;</div>
-<div class="line"><a id="l06277" name="l06277"></a><span class="lineno"> 6277</span>        VALIDATE_STATIC_OPTION(m_st_rcv_max_packets_after_unrecvd_packet_ratio_percent) &amp;&amp;</div>
-<div class="line"><a id="l06278" name="l06278"></a><span class="lineno"> 6278</span>        VALIDATE_STATIC_OPTION(m_st_delayed_ack_timer_period) &amp;&amp;</div>
-<div class="line"><a id="l06279" name="l06279"></a><span class="lineno"> 6279</span>        VALIDATE_STATIC_OPTION(m_st_max_full_blocks_before_ack_send) &amp;&amp;</div>
-<div class="line"><a id="l06280" name="l06280"></a><span class="lineno"> 6280</span>        VALIDATE_STATIC_OPTION(m_st_rexmit_on) &amp;&amp;</div>
-<div class="line"><a id="l06281" name="l06281"></a><span class="lineno"> 6281</span>        VALIDATE_STATIC_OPTION(m_st_max_rexmissions_per_packet) &amp;&amp;</div>
-<div class="line"><a id="l06282" name="l06282"></a><span class="lineno"> 6282</span>        VALIDATE_STATIC_OPTION(m_st_init_drop_timeout) &amp;&amp;</div>
-<div class="line"><a id="l06283" name="l06283"></a><span class="lineno"> 6283</span>        VALIDATE_STATIC_OPTION(m_st_snd_pacing_enabled) &amp;&amp;</div>
-<div class="line"><a id="l06284" name="l06284"></a><span class="lineno"> 6284</span>        VALIDATE_STATIC_OPTION(m_st_snd_bandwidth_est_sample_period_floor) &amp;&amp;</div>
-<div class="line"><a id="l06285" name="l06285"></a><span class="lineno"> 6285</span>        VALIDATE_STATIC_OPTION(m_st_cong_ctl_strategy) &amp;&amp;</div>
-<div class="line"><a id="l06286" name="l06286"></a><span class="lineno"> 6286</span>        VALIDATE_STATIC_OPTION(m_st_cong_ctl_init_cong_wnd_blocks) &amp;&amp;</div>
-<div class="line"><a id="l06287" name="l06287"></a><span class="lineno"> 6287</span>        VALIDATE_STATIC_OPTION(m_st_cong_ctl_max_cong_wnd_blocks) &amp;&amp;</div>
-<div class="line"><a id="l06288" name="l06288"></a><span class="lineno"> 6288</span>        VALIDATE_STATIC_OPTION(m_st_cong_ctl_cong_wnd_on_drop_timeout_blocks) &amp;&amp;</div>
-<div class="line"><a id="l06289" name="l06289"></a><span class="lineno"> 6289</span>        VALIDATE_STATIC_OPTION(m_st_cong_ctl_classic_wnd_decay_percent) &amp;&amp;</div>
-<div class="line"><a id="l06290" name="l06290"></a><span class="lineno"> 6290</span>        VALIDATE_STATIC_OPTION(m_st_drop_packet_exactly_after_drop_timeout) &amp;&amp;</div>
-<div class="line"><a id="l06291" name="l06291"></a><span class="lineno"> 6291</span>        VALIDATE_STATIC_OPTION(m_st_drop_all_on_drop_timeout) &amp;&amp;</div>
-<div class="line"><a id="l06292" name="l06292"></a><span class="lineno"> 6292</span>        VALIDATE_STATIC_OPTION(m_st_out_of_order_ack_restarts_drop_timer);</div>
-<div class="line"><a id="l06293" name="l06293"></a><span class="lineno"> 6293</span> </div>
-<div class="line"><a id="l06294" name="l06294"></a><span class="lineno"> 6294</span>    <span class="keywordflow">if</span> (!static_ok)</div>
-<div class="line"><a id="l06295" name="l06295"></a><span class="lineno"> 6295</span>    {</div>
-<div class="line"><a id="l06296" name="l06296"></a><span class="lineno"> 6296</span>      <span class="comment">// validate_static_option() has set *err_code.</span></div>
-<div class="line"><a id="l06297" name="l06297"></a><span class="lineno"> 6297</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
-<div class="line"><a id="l06298" name="l06298"></a><span class="lineno"> 6298</span>    }</div>
-<div class="line"><a id="l06299" name="l06299"></a><span class="lineno"> 6299</span>    <span class="comment">// else</span></div>
-<div class="line"><a id="l06300" name="l06300"></a><span class="lineno"> 6300</span>  } <span class="comment">// if (prev_opts)</span></div>
-<div class="line"><a id="l06301" name="l06301"></a><span class="lineno"> 6301</span> </div>
-<div class="line"><a id="l06302" name="l06302"></a><span class="lineno"> 6302</span>  <span class="comment">// Now sanity-check the values themselves.  @todo Comment and reconsider these?</span></div>
-<div class="line"><a id="l06303" name="l06303"></a><span class="lineno"> 6303</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> checks_ok</div>
-<div class="line"><a id="l06304" name="l06304"></a><span class="lineno"> 6304</span>    = VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#aeaaf832a38a5e334789e81e214686ea7">m_st_max_block_size</a> &gt;= 512) &amp;&amp;</div>
-<div class="line"><a id="l06305" name="l06305"></a><span class="lineno"> 6305</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a8f18c8222ade5f99b83a85e0203ff130">m_st_connect_retransmit_period</a>.count() &gt; 0) &amp;&amp;</div>
-<div class="line"><a id="l06306" name="l06306"></a><span class="lineno"> 6306</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#ac75171c4f1086d0aa38248ae5ffba884">m_st_connect_retransmit_timeout</a>.count() &gt; 0) &amp;&amp;</div>
-<div class="line"><a id="l06307" name="l06307"></a><span class="lineno"> 6307</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a8ca6086022691700f5e5d2dc87ca92fd">m_st_snd_buf_max_size</a> &gt;= 4 * opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#aeaaf832a38a5e334789e81e214686ea7">m_st_max_block_size</a>) &amp;&amp;</div>
-<div class="line"><a id="l06308" name="l06308"></a><span class="lineno"> 6308</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a171480324f26432928738532cb3c8556">m_st_rcv_buf_max_size</a> &gt;= 4 * opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#aeaaf832a38a5e334789e81e214686ea7">m_st_max_block_size</a>) &amp;&amp;</div>
-<div class="line"><a id="l06309" name="l06309"></a><span class="lineno"> 6309</span>      VALIDATE_CHECK(<a class="code hl_function" href="namespaceflow_1_1util.html#a8ae762ea4f743a98a73953d7f9ec2164">util::in_open_closed_range</a>(0u, opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#af483d0292f363e7dbf14dc7a2dd49f3f">m_st_rcv_buf_max_size_to_advertise_percent</a>, 100u)) &amp;&amp;</div>
-<div class="line"><a id="l06310" name="l06310"></a><span class="lineno"> 6310</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#af78ca6cf3c6da3bc24cea40d522f0bdb">m_st_rcv_max_packets_after_unrecvd_packet_ratio_percent</a> &gt;= 100) &amp;&amp;</div>
-<div class="line"><a id="l06311" name="l06311"></a><span class="lineno"> 6311</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#add7ccb9e8cd0715ca78e0710d2a6db06">m_st_delayed_ack_timer_period</a> &lt;= seconds(1)) &amp;&amp;</div>
-<div class="line"><a id="l06312" name="l06312"></a><span class="lineno"> 6312</span>      VALIDATE_CHECK(<a class="code hl_function" href="namespaceflow_1_1util.html#ab10bc9e8bef148f875aa743fe0852743">util::in_closed_range</a>(Fine_duration::zero(),</div>
-<div class="line"><a id="l06313" name="l06313"></a><span class="lineno"> 6313</span>                                           opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#add7ccb9e8cd0715ca78e0710d2a6db06">m_st_delayed_ack_timer_period</a>,</div>
-<div class="line"><a id="l06314" name="l06314"></a><span class="lineno"> 6314</span>                                           <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>(seconds(1)))) &amp;&amp;</div>
-<div class="line"><a id="l06315" name="l06315"></a><span class="lineno"> 6315</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#ad7a76f7ae03e258b30b04c7350481de6">m_st_max_full_blocks_before_ack_send</a> &gt;= 1) &amp;&amp;</div>
-<div class="line"><a id="l06316" name="l06316"></a><span class="lineno"> 6316</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a0b37da87848d01220c7e58f90e6764ba">m_st_max_rexmissions_per_packet</a> &gt;= 1) &amp;&amp;</div>
-<div class="line"><a id="l06317" name="l06317"></a><span class="lineno"> 6317</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a0b37da87848d01220c7e58f90e6764ba">m_st_max_rexmissions_per_packet</a> &lt;= numeric_limits&lt;Low_lvl_packet::rexmit_id_t&gt;::max());</div>
-<div class="line"><a id="l06318" name="l06318"></a><span class="lineno"> 6318</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a02afb5ed4201d83c87a3a30fcbdda489">m_st_init_drop_timeout</a>.count() &gt; 0) &amp;&amp;</div>
-<div class="line"><a id="l06319" name="l06319"></a><span class="lineno"> 6319</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a2a3d420992e19e5addb7193d607e82e4">m_st_snd_bandwidth_est_sample_period_floor</a>.count() &gt; 0) &amp;&amp;</div>
-<div class="line"><a id="l06320" name="l06320"></a><span class="lineno"> 6320</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a637811d19d4a2b4d9b3ab79742aadff8">m_st_cong_ctl_init_cong_wnd_blocks</a> &lt;= opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a1bdc21e84373dd96494a76f11603335e">m_st_cong_ctl_max_cong_wnd_blocks</a>) &amp;&amp;</div>
-<div class="line"><a id="l06321" name="l06321"></a><span class="lineno"> 6321</span>      VALIDATE_CHECK</div>
-<div class="line"><a id="l06322" name="l06322"></a><span class="lineno"> 6322</span>        (4 * opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a1bdc21e84373dd96494a76f11603335e">m_st_cong_ctl_max_cong_wnd_blocks</a> * opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#aeaaf832a38a5e334789e81e214686ea7">m_st_max_block_size</a> &lt;= opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a171480324f26432928738532cb3c8556">m_st_rcv_buf_max_size</a>) &amp;&amp;</div>
-<div class="line"><a id="l06323" name="l06323"></a><span class="lineno"> 6323</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a2a7ab1e27acd52d8fa3aadc9eb13d116">m_st_cong_ctl_cong_avoidance_increment_blocks</a> &lt; 20) &amp;&amp;</div>
-<div class="line"><a id="l06324" name="l06324"></a><span class="lineno"> 6324</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#aeccfe97128c9f5f62ff26d73047dec2e">m_st_cong_ctl_classic_wnd_decay_percent</a> &lt;= 100) &amp;&amp;</div>
-<div class="line"><a id="l06325" name="l06325"></a><span class="lineno"> 6325</span>      VALIDATE_CHECK(util::in_closed_range&lt;size_t&gt;(1, opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a2c8fcb08dfb0d1ebcc21e02940c149e8">m_st_cong_ctl_cong_wnd_on_drop_timeout_blocks</a>, 10)) &amp;&amp;</div>
-<div class="line"><a id="l06326" name="l06326"></a><span class="lineno"> 6326</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#afd02a9d91ef5e5c13ea95ea35624da1a">m_dyn_drop_timeout_ceiling</a> &gt; 4 * opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a02afb5ed4201d83c87a3a30fcbdda489">m_st_init_drop_timeout</a>) &amp;&amp;</div>
-<div class="line"><a id="l06327" name="l06327"></a><span class="lineno"> 6327</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#ae2551f2995f5830e0461bec6fdd9035e">m_dyn_drop_timeout_backoff_factor</a> &gt;= 1) &amp;&amp;</div>
-<div class="line"><a id="l06328" name="l06328"></a><span class="lineno"> 6328</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#ac38c0bbba5edbb4964a3914ccf56018f">m_dyn_rcv_wnd_recovery_timer_period</a>.count() &gt; 0);</div>
-<div class="line"><a id="l06329" name="l06329"></a><span class="lineno"> 6329</span> </div>
-<div class="line"><a id="l06330" name="l06330"></a><span class="lineno"> 6330</span>  <span class="comment">// On error, validate_option_check() has set *err_code.</span></div>
-<div class="line"><a id="l06331" name="l06331"></a><span class="lineno"> 6331</span> </div>
-<div class="line"><a id="l06332" name="l06332"></a><span class="lineno"> 6332</span>  <span class="keywordflow">return</span> checks_ok;</div>
-<div class="line"><a id="l06333" name="l06333"></a><span class="lineno"> 6333</span> </div>
-<div class="line"><a id="l06334" name="l06334"></a><span class="lineno"> 6334</span><span class="preprocessor">#undef VALIDATE_CHECK</span></div>
-<div class="line"><a id="l06335" name="l06335"></a><span class="lineno"> 6335</span><span class="preprocessor">#undef VALIDATE_STATIC_OPTION</span></div>
-<div class="line"><a id="l06336" name="l06336"></a><span class="lineno"> 6336</span>} <span class="comment">// Node::sock_validate_options()</span></div>
+<div class="line"><a id="l06211" name="l06211"></a><span class="lineno"> 6211</span>  <span class="comment">// Log new options values.  A bit computationally expensive so just use TRACE for now.  @todo Reconsider?</span></div>
+<div class="line"><a id="l06212" name="l06212"></a><span class="lineno"> 6212</span>  <a class="code hl_define" href="log_8hpp.html#affcf2e4c496ce3f42adf981669c623b8">FLOW_LOG_TRACE</a>(<span class="stringliteral">&quot;For [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]:\n\n&quot;</span> &lt;&lt; opts);</div>
+<div class="line"><a id="l06213" name="l06213"></a><span class="lineno"> 6213</span> </div>
+<div class="line"><a id="l06214" name="l06214"></a><span class="lineno"> 6214</span>  <span class="comment">// Will be writing sock-&gt;m_opts if all goes well, so must acquire exclusive ownership of m_opts.</span></div>
+<div class="line"><a id="l06215" name="l06215"></a><span class="lineno"> 6215</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">Peer_socket::Options_lock</a> lock(sock-&gt;m_opts_mutex);</div>
+<div class="line"><a id="l06216" name="l06216"></a><span class="lineno"> 6216</span> </div>
+<div class="line"><a id="l06217" name="l06217"></a><span class="lineno"> 6217</span>  <span class="comment">/* Validate the new option set (including ensuring they&#39;re not changing static options&#39; values).</span></div>
+<div class="line"><a id="l06218" name="l06218"></a><span class="lineno"> 6218</span><span class="comment">   * Note that an explicit pre-condition of this method is that m_opts_mutex is locked if needed,</span></div>
+<div class="line"><a id="l06219" name="l06219"></a><span class="lineno"> 6219</span><span class="comment">   * hence the above locking statement is not below this call. */</span></div>
+<div class="line"><a id="l06220" name="l06220"></a><span class="lineno"> 6220</span>  <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276">sock_validate_options</a>(opts, &amp;sock-&gt;m_opts, err_code))</div>
+<div class="line"><a id="l06221" name="l06221"></a><span class="lineno"> 6221</span>  {</div>
+<div class="line"><a id="l06222" name="l06222"></a><span class="lineno"> 6222</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
+<div class="line"><a id="l06223" name="l06223"></a><span class="lineno"> 6223</span>  }</div>
+<div class="line"><a id="l06224" name="l06224"></a><span class="lineno"> 6224</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l06225" name="l06225"></a><span class="lineno"> 6225</span> </div>
+<div class="line"><a id="l06226" name="l06226"></a><span class="lineno"> 6226</span>  <span class="comment">// Boo-ya.</span></div>
+<div class="line"><a id="l06227" name="l06227"></a><span class="lineno"> 6227</span>  sock-&gt;m_opts = opts;</div>
+<div class="line"><a id="l06228" name="l06228"></a><span class="lineno"> 6228</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
+<div class="line"><a id="l06229" name="l06229"></a><span class="lineno"> 6229</span>} <span class="comment">// Node::sock_set_options()</span></div>
+<div class="line"><a id="l06230" name="l06230"></a><span class="lineno"> 6230</span><span class="comment"></span> </div>
+<div class="line"><a id="l06231" name="l06231"></a><span class="lineno"> 6231</span><span class="comment">/// @cond</span></div>
+<div class="line"><a id="l06232" name="l06232"></a><span class="lineno"> 6232</span><span class="comment"></span><span class="comment">/* -^- Doxygen, please ignore the following.  (Don&#39;t want docs generated for temp macro; this is more maintainable</span></div>
+<div class="line"><a id="l06233" name="l06233"></a><span class="lineno"> 6233</span><span class="comment"> * than specifying the macro name to omit it, in Doxygen-config EXCLUDE_SYMBOLS.) */</span></div>
+<div class="line"><a id="l06234" name="l06234"></a><span class="lineno"> 6234</span> </div>
+<div class="line"><a id="l06235" name="l06235"></a><span class="lineno"> 6235</span><span class="comment">/* Normaly I try to avoid macro cleverness, but in this case to get a nice printout we need the</span></div>
+<div class="line"><a id="l06236" name="l06236"></a><span class="lineno"> 6236</span><span class="comment"> * # technique, and also this eliminates quite a bit of repetition.  So let&#39;s.... */</span></div>
+<div class="line"><a id="l06237" name="l06237"></a><span class="lineno"> 6237</span><span class="preprocessor">#define VALIDATE_STATIC_OPTION(ARG_opt) \</span></div>
+<div class="line"><a id="l06238" name="l06238"></a><span class="lineno"> 6238</span><span class="preprocessor">  validate_static_option(opts.ARG_opt, prev_opts-&gt;ARG_opt, #ARG_opt, err_code)</span></div>
+<div class="line"><a id="l06239" name="l06239"></a><span class="lineno"> 6239</span><span class="preprocessor">#define VALIDATE_CHECK(ARG_check) \</span></div>
+<div class="line"><a id="l06240" name="l06240"></a><span class="lineno"> 6240</span><span class="preprocessor">  validate_option_check(ARG_check, #ARG_check, err_code)</span></div>
+<div class="line"><a id="l06241" name="l06241"></a><span class="lineno"> 6241</span> </div>
+<div class="line"><a id="l06242" name="l06242"></a><span class="lineno"> 6242</span><span class="comment">// -v- Doxygen, please stop ignoring.</span><span class="comment"></span></div>
+<div class="line"><a id="l06243" name="l06243"></a><span class="lineno"> 6243</span><span class="comment">/// @endcond</span></div>
+<div class="line"><a id="l06244" name="l06244"></a><span class="lineno"> 6244</span><span class="comment"></span> </div>
+<div class="line"><a id="l06245" name="l06245"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276"> 6245</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276">Node::sock_validate_options</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>&amp; opts,</div>
+<div class="line"><a id="l06246" name="l06246"></a><span class="lineno"> 6246</span>                                 <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>* prev_opts,</div>
+<div class="line"><a id="l06247" name="l06247"></a><span class="lineno"> 6247</span>                                 <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)<span class="keyword"> const</span></div>
+<div class="line"><a id="l06248" name="l06248"></a><span class="lineno"> 6248</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l06249" name="l06249"></a><span class="lineno"> 6249</span>  <span class="comment">/* We are to validate the given set of per-socket option values.  If prev_opts, then the context</span></div>
+<div class="line"><a id="l06250" name="l06250"></a><span class="lineno"> 6250</span><span class="comment">   * is that an already-existing socket (with already-set options) is being called with</span></div>
+<div class="line"><a id="l06251" name="l06251"></a><span class="lineno"> 6251</span><span class="comment">   * set_options(), i.e. user is modifying options for an existing socket.  In that case we must</span></div>
+<div class="line"><a id="l06252" name="l06252"></a><span class="lineno"> 6252</span><span class="comment">   * ensure that no static (unchangeable) option&#39;s value would be changed by this.</span></div>
+<div class="line"><a id="l06253" name="l06253"></a><span class="lineno"> 6253</span><span class="comment">   *</span></div>
+<div class="line"><a id="l06254" name="l06254"></a><span class="lineno"> 6254</span><span class="comment">   * If not prev_opts, then the per-socket options within the global per-Node Node_options object</span></div>
+<div class="line"><a id="l06255" name="l06255"></a><span class="lineno"> 6255</span><span class="comment">   * are being changed.  Per-socket options in that context are always dynamic, since if they were</span></div>
+<div class="line"><a id="l06256" name="l06256"></a><span class="lineno"> 6256</span><span class="comment">   * static, there&#39;d be no point in making the per-socket in the first place.  So in that case that</span></div>
+<div class="line"><a id="l06257" name="l06257"></a><span class="lineno"> 6257</span><span class="comment">   * static option check is to be skipped.</span></div>
+<div class="line"><a id="l06258" name="l06258"></a><span class="lineno"> 6258</span><span class="comment">   *</span></div>
+<div class="line"><a id="l06259" name="l06259"></a><span class="lineno"> 6259</span><span class="comment">   * Finally, we must check for individual integrity of the specified values (including consistency</span></div>
+<div class="line"><a id="l06260" name="l06260"></a><span class="lineno"> 6260</span><span class="comment">   * with other option values). */</span></div>
+<div class="line"><a id="l06261" name="l06261"></a><span class="lineno"> 6261</span> </div>
+<div class="line"><a id="l06262" name="l06262"></a><span class="lineno"> 6262</span>  <span class="keyword">using </span>boost::chrono::seconds;</div>
+<div class="line"><a id="l06263" name="l06263"></a><span class="lineno"> 6263</span>  <span class="keyword">using </span>std::numeric_limits;</div>
+<div class="line"><a id="l06264" name="l06264"></a><span class="lineno"> 6264</span> </div>
+<div class="line"><a id="l06265" name="l06265"></a><span class="lineno"> 6265</span>  <span class="comment">// We are in thread U != W or in thread W.</span></div>
+<div class="line"><a id="l06266" name="l06266"></a><span class="lineno"> 6266</span> </div>
+<div class="line"><a id="l06267" name="l06267"></a><span class="lineno"> 6267</span>  <span class="keywordflow">if</span> (prev_opts)</div>
+<div class="line"><a id="l06268" name="l06268"></a><span class="lineno"> 6268</span>  {</div>
+<div class="line"><a id="l06269" name="l06269"></a><span class="lineno"> 6269</span>    <span class="comment">/* As explained above, they&#39;re trying to change an existing socket&#39;s option values.  Ensure</span></div>
+<div class="line"><a id="l06270" name="l06270"></a><span class="lineno"> 6270</span><span class="comment">     * all the static options&#39; values are the same in opts and prev_opts. */</span></div>
+<div class="line"><a id="l06271" name="l06271"></a><span class="lineno"> 6271</span> </div>
+<div class="line"><a id="l06272" name="l06272"></a><span class="lineno"> 6272</span>    <span class="comment">// Explicitly documented pre-condition is that *prev_opts is already locked if necessary.  So don&#39;t lock.</span></div>
+<div class="line"><a id="l06273" name="l06273"></a><span class="lineno"> 6273</span> </div>
+<div class="line"><a id="l06274" name="l06274"></a><span class="lineno"> 6274</span>    <span class="keyword">const</span> <span class="keywordtype">bool</span> static_ok</div>
+<div class="line"><a id="l06275" name="l06275"></a><span class="lineno"> 6275</span>      = VALIDATE_STATIC_OPTION(m_st_max_block_size) &amp;&amp;</div>
+<div class="line"><a id="l06276" name="l06276"></a><span class="lineno"> 6276</span>        VALIDATE_STATIC_OPTION(m_st_connect_retransmit_period) &amp;&amp;</div>
+<div class="line"><a id="l06277" name="l06277"></a><span class="lineno"> 6277</span>        VALIDATE_STATIC_OPTION(m_st_connect_retransmit_timeout) &amp;&amp;</div>
+<div class="line"><a id="l06278" name="l06278"></a><span class="lineno"> 6278</span>        VALIDATE_STATIC_OPTION(m_st_snd_buf_max_size) &amp;&amp;</div>
+<div class="line"><a id="l06279" name="l06279"></a><span class="lineno"> 6279</span>        VALIDATE_STATIC_OPTION(m_st_rcv_buf_max_size) &amp;&amp;</div>
+<div class="line"><a id="l06280" name="l06280"></a><span class="lineno"> 6280</span>        VALIDATE_STATIC_OPTION(m_st_rcv_flow_control_on) &amp;&amp;</div>
+<div class="line"><a id="l06281" name="l06281"></a><span class="lineno"> 6281</span>        VALIDATE_STATIC_OPTION(m_st_rcv_buf_max_size_slack_percent) &amp;&amp;</div>
+<div class="line"><a id="l06282" name="l06282"></a><span class="lineno"> 6282</span>        VALIDATE_STATIC_OPTION(m_st_rcv_buf_max_size_to_advertise_percent) &amp;&amp;</div>
+<div class="line"><a id="l06283" name="l06283"></a><span class="lineno"> 6283</span>        VALIDATE_STATIC_OPTION(m_st_rcv_max_packets_after_unrecvd_packet_ratio_percent) &amp;&amp;</div>
+<div class="line"><a id="l06284" name="l06284"></a><span class="lineno"> 6284</span>        VALIDATE_STATIC_OPTION(m_st_delayed_ack_timer_period) &amp;&amp;</div>
+<div class="line"><a id="l06285" name="l06285"></a><span class="lineno"> 6285</span>        VALIDATE_STATIC_OPTION(m_st_max_full_blocks_before_ack_send) &amp;&amp;</div>
+<div class="line"><a id="l06286" name="l06286"></a><span class="lineno"> 6286</span>        VALIDATE_STATIC_OPTION(m_st_rexmit_on) &amp;&amp;</div>
+<div class="line"><a id="l06287" name="l06287"></a><span class="lineno"> 6287</span>        VALIDATE_STATIC_OPTION(m_st_max_rexmissions_per_packet) &amp;&amp;</div>
+<div class="line"><a id="l06288" name="l06288"></a><span class="lineno"> 6288</span>        VALIDATE_STATIC_OPTION(m_st_init_drop_timeout) &amp;&amp;</div>
+<div class="line"><a id="l06289" name="l06289"></a><span class="lineno"> 6289</span>        VALIDATE_STATIC_OPTION(m_st_snd_pacing_enabled) &amp;&amp;</div>
+<div class="line"><a id="l06290" name="l06290"></a><span class="lineno"> 6290</span>        VALIDATE_STATIC_OPTION(m_st_snd_bandwidth_est_sample_period_floor) &amp;&amp;</div>
+<div class="line"><a id="l06291" name="l06291"></a><span class="lineno"> 6291</span>        VALIDATE_STATIC_OPTION(m_st_cong_ctl_strategy) &amp;&amp;</div>
+<div class="line"><a id="l06292" name="l06292"></a><span class="lineno"> 6292</span>        VALIDATE_STATIC_OPTION(m_st_cong_ctl_init_cong_wnd_blocks) &amp;&amp;</div>
+<div class="line"><a id="l06293" name="l06293"></a><span class="lineno"> 6293</span>        VALIDATE_STATIC_OPTION(m_st_cong_ctl_max_cong_wnd_blocks) &amp;&amp;</div>
+<div class="line"><a id="l06294" name="l06294"></a><span class="lineno"> 6294</span>        VALIDATE_STATIC_OPTION(m_st_cong_ctl_cong_wnd_on_drop_timeout_blocks) &amp;&amp;</div>
+<div class="line"><a id="l06295" name="l06295"></a><span class="lineno"> 6295</span>        VALIDATE_STATIC_OPTION(m_st_cong_ctl_classic_wnd_decay_percent) &amp;&amp;</div>
+<div class="line"><a id="l06296" name="l06296"></a><span class="lineno"> 6296</span>        VALIDATE_STATIC_OPTION(m_st_drop_packet_exactly_after_drop_timeout) &amp;&amp;</div>
+<div class="line"><a id="l06297" name="l06297"></a><span class="lineno"> 6297</span>        VALIDATE_STATIC_OPTION(m_st_drop_all_on_drop_timeout) &amp;&amp;</div>
+<div class="line"><a id="l06298" name="l06298"></a><span class="lineno"> 6298</span>        VALIDATE_STATIC_OPTION(m_st_out_of_order_ack_restarts_drop_timer);</div>
+<div class="line"><a id="l06299" name="l06299"></a><span class="lineno"> 6299</span> </div>
+<div class="line"><a id="l06300" name="l06300"></a><span class="lineno"> 6300</span>    <span class="keywordflow">if</span> (!static_ok)</div>
+<div class="line"><a id="l06301" name="l06301"></a><span class="lineno"> 6301</span>    {</div>
+<div class="line"><a id="l06302" name="l06302"></a><span class="lineno"> 6302</span>      <span class="comment">// validate_static_option() has set *err_code.</span></div>
+<div class="line"><a id="l06303" name="l06303"></a><span class="lineno"> 6303</span>      <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
+<div class="line"><a id="l06304" name="l06304"></a><span class="lineno"> 6304</span>    }</div>
+<div class="line"><a id="l06305" name="l06305"></a><span class="lineno"> 6305</span>    <span class="comment">// else</span></div>
+<div class="line"><a id="l06306" name="l06306"></a><span class="lineno"> 6306</span>  } <span class="comment">// if (prev_opts)</span></div>
+<div class="line"><a id="l06307" name="l06307"></a><span class="lineno"> 6307</span> </div>
+<div class="line"><a id="l06308" name="l06308"></a><span class="lineno"> 6308</span>  <span class="comment">// Now sanity-check the values themselves.  @todo Comment and reconsider these?</span></div>
+<div class="line"><a id="l06309" name="l06309"></a><span class="lineno"> 6309</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> checks_ok</div>
+<div class="line"><a id="l06310" name="l06310"></a><span class="lineno"> 6310</span>    = VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#aeaaf832a38a5e334789e81e214686ea7">m_st_max_block_size</a> &gt;= 512) &amp;&amp;</div>
+<div class="line"><a id="l06311" name="l06311"></a><span class="lineno"> 6311</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a8f18c8222ade5f99b83a85e0203ff130">m_st_connect_retransmit_period</a>.count() &gt; 0) &amp;&amp;</div>
+<div class="line"><a id="l06312" name="l06312"></a><span class="lineno"> 6312</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#ac75171c4f1086d0aa38248ae5ffba884">m_st_connect_retransmit_timeout</a>.count() &gt; 0) &amp;&amp;</div>
+<div class="line"><a id="l06313" name="l06313"></a><span class="lineno"> 6313</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a8ca6086022691700f5e5d2dc87ca92fd">m_st_snd_buf_max_size</a> &gt;= 4 * opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#aeaaf832a38a5e334789e81e214686ea7">m_st_max_block_size</a>) &amp;&amp;</div>
+<div class="line"><a id="l06314" name="l06314"></a><span class="lineno"> 6314</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a171480324f26432928738532cb3c8556">m_st_rcv_buf_max_size</a> &gt;= 4 * opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#aeaaf832a38a5e334789e81e214686ea7">m_st_max_block_size</a>) &amp;&amp;</div>
+<div class="line"><a id="l06315" name="l06315"></a><span class="lineno"> 6315</span>      VALIDATE_CHECK(<a class="code hl_function" href="namespaceflow_1_1util.html#a8ae762ea4f743a98a73953d7f9ec2164">util::in_open_closed_range</a>(0u, opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#af483d0292f363e7dbf14dc7a2dd49f3f">m_st_rcv_buf_max_size_to_advertise_percent</a>, 100u)) &amp;&amp;</div>
+<div class="line"><a id="l06316" name="l06316"></a><span class="lineno"> 6316</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#af78ca6cf3c6da3bc24cea40d522f0bdb">m_st_rcv_max_packets_after_unrecvd_packet_ratio_percent</a> &gt;= 100) &amp;&amp;</div>
+<div class="line"><a id="l06317" name="l06317"></a><span class="lineno"> 6317</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#add7ccb9e8cd0715ca78e0710d2a6db06">m_st_delayed_ack_timer_period</a> &lt;= seconds(1)) &amp;&amp;</div>
+<div class="line"><a id="l06318" name="l06318"></a><span class="lineno"> 6318</span>      VALIDATE_CHECK(<a class="code hl_function" href="namespaceflow_1_1util.html#ab10bc9e8bef148f875aa743fe0852743">util::in_closed_range</a>(Fine_duration::zero(),</div>
+<div class="line"><a id="l06319" name="l06319"></a><span class="lineno"> 6319</span>                                           opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#add7ccb9e8cd0715ca78e0710d2a6db06">m_st_delayed_ack_timer_period</a>,</div>
+<div class="line"><a id="l06320" name="l06320"></a><span class="lineno"> 6320</span>                                           <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a>(seconds(1)))) &amp;&amp;</div>
+<div class="line"><a id="l06321" name="l06321"></a><span class="lineno"> 6321</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#ad7a76f7ae03e258b30b04c7350481de6">m_st_max_full_blocks_before_ack_send</a> &gt;= 1) &amp;&amp;</div>
+<div class="line"><a id="l06322" name="l06322"></a><span class="lineno"> 6322</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a0b37da87848d01220c7e58f90e6764ba">m_st_max_rexmissions_per_packet</a> &gt;= 1) &amp;&amp;</div>
+<div class="line"><a id="l06323" name="l06323"></a><span class="lineno"> 6323</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a0b37da87848d01220c7e58f90e6764ba">m_st_max_rexmissions_per_packet</a> &lt;= numeric_limits&lt;Low_lvl_packet::rexmit_id_t&gt;::max());</div>
+<div class="line"><a id="l06324" name="l06324"></a><span class="lineno"> 6324</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a02afb5ed4201d83c87a3a30fcbdda489">m_st_init_drop_timeout</a>.count() &gt; 0) &amp;&amp;</div>
+<div class="line"><a id="l06325" name="l06325"></a><span class="lineno"> 6325</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a2a3d420992e19e5addb7193d607e82e4">m_st_snd_bandwidth_est_sample_period_floor</a>.count() &gt; 0) &amp;&amp;</div>
+<div class="line"><a id="l06326" name="l06326"></a><span class="lineno"> 6326</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a637811d19d4a2b4d9b3ab79742aadff8">m_st_cong_ctl_init_cong_wnd_blocks</a> &lt;= opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a1bdc21e84373dd96494a76f11603335e">m_st_cong_ctl_max_cong_wnd_blocks</a>) &amp;&amp;</div>
+<div class="line"><a id="l06327" name="l06327"></a><span class="lineno"> 6327</span>      VALIDATE_CHECK</div>
+<div class="line"><a id="l06328" name="l06328"></a><span class="lineno"> 6328</span>        (4 * opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a1bdc21e84373dd96494a76f11603335e">m_st_cong_ctl_max_cong_wnd_blocks</a> * opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#aeaaf832a38a5e334789e81e214686ea7">m_st_max_block_size</a> &lt;= opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a171480324f26432928738532cb3c8556">m_st_rcv_buf_max_size</a>) &amp;&amp;</div>
+<div class="line"><a id="l06329" name="l06329"></a><span class="lineno"> 6329</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a2a7ab1e27acd52d8fa3aadc9eb13d116">m_st_cong_ctl_cong_avoidance_increment_blocks</a> &lt; 20) &amp;&amp;</div>
+<div class="line"><a id="l06330" name="l06330"></a><span class="lineno"> 6330</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#aeccfe97128c9f5f62ff26d73047dec2e">m_st_cong_ctl_classic_wnd_decay_percent</a> &lt;= 100) &amp;&amp;</div>
+<div class="line"><a id="l06331" name="l06331"></a><span class="lineno"> 6331</span>      VALIDATE_CHECK(util::in_closed_range&lt;size_t&gt;(1, opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a2c8fcb08dfb0d1ebcc21e02940c149e8">m_st_cong_ctl_cong_wnd_on_drop_timeout_blocks</a>, 10)) &amp;&amp;</div>
+<div class="line"><a id="l06332" name="l06332"></a><span class="lineno"> 6332</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#afd02a9d91ef5e5c13ea95ea35624da1a">m_dyn_drop_timeout_ceiling</a> &gt; 4 * opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#a02afb5ed4201d83c87a3a30fcbdda489">m_st_init_drop_timeout</a>) &amp;&amp;</div>
+<div class="line"><a id="l06333" name="l06333"></a><span class="lineno"> 6333</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#ae2551f2995f5830e0461bec6fdd9035e">m_dyn_drop_timeout_backoff_factor</a> &gt;= 1) &amp;&amp;</div>
+<div class="line"><a id="l06334" name="l06334"></a><span class="lineno"> 6334</span>      VALIDATE_CHECK(opts.<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__options.html#ac38c0bbba5edbb4964a3914ccf56018f">m_dyn_rcv_wnd_recovery_timer_period</a>.count() &gt; 0);</div>
+<div class="line"><a id="l06335" name="l06335"></a><span class="lineno"> 6335</span> </div>
+<div class="line"><a id="l06336" name="l06336"></a><span class="lineno"> 6336</span>  <span class="comment">// On error, validate_option_check() has set *err_code.</span></div>
 <div class="line"><a id="l06337" name="l06337"></a><span class="lineno"> 6337</span> </div>
-<div class="line"><a id="l06338" name="l06338"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a07ad769737db60dd637365010b80f4f3"> 6338</a></span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__info.html">Peer_socket_info</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a07ad769737db60dd637365010b80f4f3">Node::sock_info</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)</div>
-<div class="line"><a id="l06339" name="l06339"></a><span class="lineno"> 6339</span>{</div>
-<div class="line"><a id="l06340" name="l06340"></a><span class="lineno"> 6340</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1async.html#a24567271e97a67d3cae6bd8bf8dc63c4">async::asio_exec_ctx_post</a>;</div>
-<div class="line"><a id="l06341" name="l06341"></a><span class="lineno"> 6341</span>  <span class="keyword">using </span><a class="code hl_enumeration" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485">async::Synchronicity</a>;</div>
-<div class="line"><a id="l06342" name="l06342"></a><span class="lineno"> 6342</span>  <span class="keyword">using </span>boost::adopt_lock;</div>
+<div class="line"><a id="l06338" name="l06338"></a><span class="lineno"> 6338</span>  <span class="keywordflow">return</span> checks_ok;</div>
+<div class="line"><a id="l06339" name="l06339"></a><span class="lineno"> 6339</span> </div>
+<div class="line"><a id="l06340" name="l06340"></a><span class="lineno"> 6340</span><span class="preprocessor">#undef VALIDATE_CHECK</span></div>
+<div class="line"><a id="l06341" name="l06341"></a><span class="lineno"> 6341</span><span class="preprocessor">#undef VALIDATE_STATIC_OPTION</span></div>
+<div class="line"><a id="l06342" name="l06342"></a><span class="lineno"> 6342</span>} <span class="comment">// Node::sock_validate_options()</span></div>
 <div class="line"><a id="l06343" name="l06343"></a><span class="lineno"> 6343</span> </div>
-<div class="line"><a id="l06344" name="l06344"></a><span class="lineno"> 6344</span>  <span class="comment">// We are in thread U != W.</span></div>
-<div class="line"><a id="l06345" name="l06345"></a><span class="lineno"> 6345</span> </div>
-<div class="line"><a id="l06346" name="l06346"></a><span class="lineno"> 6346</span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__info.html">Peer_socket_info</a> stats;</div>
-<div class="line"><a id="l06347" name="l06347"></a><span class="lineno"> 6347</span>  {</div>
-<div class="line"><a id="l06348" name="l06348"></a><span class="lineno"> 6348</span>    <span class="comment">/* WARNING!!!  sock-&gt;m_mutex is locked, but WE must unlock it before returning!  Can&#39;t leave that</span></div>
-<div class="line"><a id="l06349" name="l06349"></a><span class="lineno"> 6349</span><span class="comment">     * to the caller, because we must unlock at a specific point below, right before post()ing</span></div>
-<div class="line"><a id="l06350" name="l06350"></a><span class="lineno"> 6350</span><span class="comment">     * sock_info_worker() onto thread W.  Use a Lock_guard that adopts an already-locked mutex. */</span></div>
-<div class="line"><a id="l06351" name="l06351"></a><span class="lineno"> 6351</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex, adopt_lock);</div>
-<div class="line"><a id="l06352" name="l06352"></a><span class="lineno"> 6352</span> </div>
-<div class="line"><a id="l06353" name="l06353"></a><span class="lineno"> 6353</span>    <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">running</a>())</div>
-<div class="line"><a id="l06354" name="l06354"></a><span class="lineno"> 6354</span>    {</div>
-<div class="line"><a id="l06355" name="l06355"></a><span class="lineno"> 6355</span>      <span class="comment">/* This is kind of a weird case, in that sock&#39;s Node having stopped running is a problem, but</span></div>
-<div class="line"><a id="l06356" name="l06356"></a><span class="lineno"> 6356</span><span class="comment">       * in this case they just want the socket stats.  The only reason we&#39;re in this method --</span></div>
-<div class="line"><a id="l06357" name="l06357"></a><span class="lineno"> 6357</span><span class="comment">       * calling sock-&gt;info() did not simply return the stats itself -- is that there was a danger</span></div>
-<div class="line"><a id="l06358" name="l06358"></a><span class="lineno"> 6358</span><span class="comment">       * thread W might change the stats, while we&#39;d be copying them.  Well, if !running() there is no</span></div>
-<div class="line"><a id="l06359" name="l06359"></a><span class="lineno"> 6359</span><span class="comment">       * danger of that.  So we can just: */</span></div>
-<div class="line"><a id="l06360" name="l06360"></a><span class="lineno"> 6360</span>      <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">sock_load_info_struct</a>(sock, &amp;stats);</div>
-<div class="line"><a id="l06361" name="l06361"></a><span class="lineno"> 6361</span>      <span class="keywordflow">return</span> stats;</div>
-<div class="line"><a id="l06362" name="l06362"></a><span class="lineno"> 6362</span>    }</div>
-<div class="line"><a id="l06363" name="l06363"></a><span class="lineno"> 6363</span>    <span class="comment">// else</span></div>
-<div class="line"><a id="l06364" name="l06364"></a><span class="lineno"> 6364</span> </div>
-<div class="line"><a id="l06365" name="l06365"></a><span class="lineno"> 6365</span>    <span class="comment">/* Okay -- Node is running and may change stats&#39;s source info at any time.  Therefore, since we</span></div>
-<div class="line"><a id="l06366" name="l06366"></a><span class="lineno"> 6366</span><span class="comment">     * do not have a mutex for all that source info, we place a task on W and set up a future as a</span></div>
-<div class="line"><a id="l06367" name="l06367"></a><span class="lineno"> 6367</span><span class="comment">     * way for it to inform us it&#39;s done.  This has a certain performance penalty, but that&#39;s better</span></div>
-<div class="line"><a id="l06368" name="l06368"></a><span class="lineno"> 6368</span><span class="comment">     * than having to lock each time we need to modify this source data throughout W&#39;s operations.</span></div>
-<div class="line"><a id="l06369" name="l06369"></a><span class="lineno"> 6369</span><span class="comment">     * Moreover we warned about the performance penalty in the doc header for Peer_socket::info(). */</span></div>
+<div class="line"><a id="l06344" name="l06344"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a07ad769737db60dd637365010b80f4f3"> 6344</a></span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__info.html">Peer_socket_info</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a07ad769737db60dd637365010b80f4f3">Node::sock_info</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)</div>
+<div class="line"><a id="l06345" name="l06345"></a><span class="lineno"> 6345</span>{</div>
+<div class="line"><a id="l06346" name="l06346"></a><span class="lineno"> 6346</span>  <span class="keyword">using </span><a class="code hl_function" href="namespaceflow_1_1async.html#a24567271e97a67d3cae6bd8bf8dc63c4">async::asio_exec_ctx_post</a>;</div>
+<div class="line"><a id="l06347" name="l06347"></a><span class="lineno"> 6347</span>  <span class="keyword">using </span><a class="code hl_enumeration" href="namespaceflow_1_1async.html#a0a06794b16b72f2829ce3353557c8485">async::Synchronicity</a>;</div>
+<div class="line"><a id="l06348" name="l06348"></a><span class="lineno"> 6348</span>  <span class="keyword">using </span>boost::adopt_lock;</div>
+<div class="line"><a id="l06349" name="l06349"></a><span class="lineno"> 6349</span> </div>
+<div class="line"><a id="l06350" name="l06350"></a><span class="lineno"> 6350</span>  <span class="comment">// We are in thread U != W.</span></div>
+<div class="line"><a id="l06351" name="l06351"></a><span class="lineno"> 6351</span> </div>
+<div class="line"><a id="l06352" name="l06352"></a><span class="lineno"> 6352</span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__info.html">Peer_socket_info</a> stats;</div>
+<div class="line"><a id="l06353" name="l06353"></a><span class="lineno"> 6353</span>  {</div>
+<div class="line"><a id="l06354" name="l06354"></a><span class="lineno"> 6354</span>    <span class="comment">/* WARNING!!!  sock-&gt;m_mutex is locked, but WE must unlock it before returning!  Can&#39;t leave that</span></div>
+<div class="line"><a id="l06355" name="l06355"></a><span class="lineno"> 6355</span><span class="comment">     * to the caller, because we must unlock at a specific point below, right before post()ing</span></div>
+<div class="line"><a id="l06356" name="l06356"></a><span class="lineno"> 6356</span><span class="comment">     * sock_info_worker() onto thread W.  Use a Lock_guard that adopts an already-locked mutex. */</span></div>
+<div class="line"><a id="l06357" name="l06357"></a><span class="lineno"> 6357</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex, adopt_lock);</div>
+<div class="line"><a id="l06358" name="l06358"></a><span class="lineno"> 6358</span> </div>
+<div class="line"><a id="l06359" name="l06359"></a><span class="lineno"> 6359</span>    <span class="keywordflow">if</span> (!<a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">running</a>())</div>
+<div class="line"><a id="l06360" name="l06360"></a><span class="lineno"> 6360</span>    {</div>
+<div class="line"><a id="l06361" name="l06361"></a><span class="lineno"> 6361</span>      <span class="comment">/* This is kind of a weird case, in that sock&#39;s Node having stopped running is a problem, but</span></div>
+<div class="line"><a id="l06362" name="l06362"></a><span class="lineno"> 6362</span><span class="comment">       * in this case they just want the socket stats.  The only reason we&#39;re in this method --</span></div>
+<div class="line"><a id="l06363" name="l06363"></a><span class="lineno"> 6363</span><span class="comment">       * calling sock-&gt;info() did not simply return the stats itself -- is that there was a danger</span></div>
+<div class="line"><a id="l06364" name="l06364"></a><span class="lineno"> 6364</span><span class="comment">       * thread W might change the stats, while we&#39;d be copying them.  Well, if !running() there is no</span></div>
+<div class="line"><a id="l06365" name="l06365"></a><span class="lineno"> 6365</span><span class="comment">       * danger of that.  So we can just: */</span></div>
+<div class="line"><a id="l06366" name="l06366"></a><span class="lineno"> 6366</span>      <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">sock_load_info_struct</a>(sock, &amp;stats);</div>
+<div class="line"><a id="l06367" name="l06367"></a><span class="lineno"> 6367</span>      <span class="keywordflow">return</span> stats;</div>
+<div class="line"><a id="l06368" name="l06368"></a><span class="lineno"> 6368</span>    }</div>
+<div class="line"><a id="l06369" name="l06369"></a><span class="lineno"> 6369</span>    <span class="comment">// else</span></div>
 <div class="line"><a id="l06370" name="l06370"></a><span class="lineno"> 6370</span> </div>
-<div class="line"><a id="l06371" name="l06371"></a><span class="lineno"> 6371</span>    <span class="comment">// We&#39;re done -- must unlock so that thread W can do what it wants to with sock.</span></div>
-<div class="line"><a id="l06372" name="l06372"></a><span class="lineno"> 6372</span>  } <span class="comment">// lock</span></div>
-<div class="line"><a id="l06373" name="l06373"></a><span class="lineno"> 6373</span> </div>
-<div class="line"><a id="l06374" name="l06374"></a><span class="lineno"> 6374</span>  <span class="comment">// Load this onto thread W boost.asio work queue.  We don&#39;t return until it&#39;s done, so [&amp;] is OK.</span></div>
-<div class="line"><a id="l06375" name="l06375"></a><span class="lineno"> 6375</span>  <a class="code hl_function" href="namespaceflow_1_1async.html#a24567271e97a67d3cae6bd8bf8dc63c4">asio_exec_ctx_post</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), &amp;<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>, Synchronicity::S_ASYNC_AND_AWAIT_CONCURRENT_COMPLETION,</div>
-<div class="line"><a id="l06376" name="l06376"></a><span class="lineno"> 6376</span>                     [&amp;]() { <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">sock_load_info_struct</a>(sock, &amp;stats); });</div>
-<div class="line"><a id="l06377" name="l06377"></a><span class="lineno"> 6377</span>  <span class="comment">// If got here, the task has completed in thread W and signaled us to that effect.</span></div>
-<div class="line"><a id="l06378" name="l06378"></a><span class="lineno"> 6378</span> </div>
-<div class="line"><a id="l06379" name="l06379"></a><span class="lineno"> 6379</span>  <span class="keywordflow">return</span> stats;</div>
-<div class="line"><a id="l06380" name="l06380"></a><span class="lineno"> 6380</span>} <span class="comment">// Node::sock_info()</span></div>
-<div class="line"><a id="l06381" name="l06381"></a><span class="lineno"> 6381</span> </div>
-<div class="line"><a id="l06382" name="l06382"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09"> 6382</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">Node::sock_load_info_struct</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock, <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__info.html">Peer_socket_info</a>* stats)<span class="keyword"> const</span></div>
-<div class="line"><a id="l06383" name="l06383"></a><span class="lineno"> 6383</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l06384" name="l06384"></a><span class="lineno"> 6384</span>  <span class="keyword">using </span>boost::lexical_cast;</div>
-<div class="line"><a id="l06385" name="l06385"></a><span class="lineno"> 6385</span>  <span class="keyword">using </span>std::string;</div>
-<div class="line"><a id="l06386" name="l06386"></a><span class="lineno"> 6386</span> </div>
-<div class="line"><a id="l06387" name="l06387"></a><span class="lineno"> 6387</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l06388" name="l06388"></a><span class="lineno"> 6388</span> </div>
-<div class="line"><a id="l06389" name="l06389"></a><span class="lineno"> 6389</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#af8234f1645d63b9eee57f6937dc222de">m_rcv</a> = sock-&gt;m_rcv_stats.stats();</div>
-<div class="line"><a id="l06390" name="l06390"></a><span class="lineno"> 6390</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a02c61270ec35141affc5bb9f6edc5cd0">m_snd</a> = sock-&gt;m_snd_stats.stats();</div>
-<div class="line"><a id="l06391" name="l06391"></a><span class="lineno"> 6391</span> </div>
-<div class="line"><a id="l06392" name="l06392"></a><span class="lineno"> 6392</span>  <span class="comment">// @todo This is more suitable for the non-existent Node_info and Node::load_info_struct().  (It&#39;s not per-socket.)</span></div>
-<div class="line"><a id="l06393" name="l06393"></a><span class="lineno"> 6393</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a0ddfcfe377cda3266dfc968797ce4c18">m_low_lvl_max_buf_size</a> = <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#a266ec5d00a44bc48caf37444eb2b43a1">m_low_lvl_max_buf_size</a>;</div>
+<div class="line"><a id="l06371" name="l06371"></a><span class="lineno"> 6371</span>    <span class="comment">/* Okay -- Node is running and may change stats&#39;s source info at any time.  Therefore, since we</span></div>
+<div class="line"><a id="l06372" name="l06372"></a><span class="lineno"> 6372</span><span class="comment">     * do not have a mutex for all that source info, we place a task on W and set up a future as a</span></div>
+<div class="line"><a id="l06373" name="l06373"></a><span class="lineno"> 6373</span><span class="comment">     * way for it to inform us it&#39;s done.  This has a certain performance penalty, but that&#39;s better</span></div>
+<div class="line"><a id="l06374" name="l06374"></a><span class="lineno"> 6374</span><span class="comment">     * than having to lock each time we need to modify this source data throughout W&#39;s operations.</span></div>
+<div class="line"><a id="l06375" name="l06375"></a><span class="lineno"> 6375</span><span class="comment">     * Moreover we warned about the performance penalty in the doc header for Peer_socket::info(). */</span></div>
+<div class="line"><a id="l06376" name="l06376"></a><span class="lineno"> 6376</span> </div>
+<div class="line"><a id="l06377" name="l06377"></a><span class="lineno"> 6377</span>    <span class="comment">// We&#39;re done -- must unlock so that thread W can do what it wants to with sock.</span></div>
+<div class="line"><a id="l06378" name="l06378"></a><span class="lineno"> 6378</span>  } <span class="comment">// lock</span></div>
+<div class="line"><a id="l06379" name="l06379"></a><span class="lineno"> 6379</span> </div>
+<div class="line"><a id="l06380" name="l06380"></a><span class="lineno"> 6380</span>  <span class="comment">// Load this onto thread W boost.asio work queue.  We don&#39;t return until it&#39;s done, so [&amp;] is OK.</span></div>
+<div class="line"><a id="l06381" name="l06381"></a><span class="lineno"> 6381</span>  <a class="code hl_function" href="namespaceflow_1_1async.html#a24567271e97a67d3cae6bd8bf8dc63c4">asio_exec_ctx_post</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>(), &amp;<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">m_task_engine</a>, Synchronicity::S_ASYNC_AND_AWAIT_CONCURRENT_COMPLETION,</div>
+<div class="line"><a id="l06382" name="l06382"></a><span class="lineno"> 6382</span>                     [&amp;]() { <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">sock_load_info_struct</a>(sock, &amp;stats); });</div>
+<div class="line"><a id="l06383" name="l06383"></a><span class="lineno"> 6383</span>  <span class="comment">// If got here, the task has completed in thread W and signaled us to that effect.</span></div>
+<div class="line"><a id="l06384" name="l06384"></a><span class="lineno"> 6384</span> </div>
+<div class="line"><a id="l06385" name="l06385"></a><span class="lineno"> 6385</span>  <span class="keywordflow">return</span> stats;</div>
+<div class="line"><a id="l06386" name="l06386"></a><span class="lineno"> 6386</span>} <span class="comment">// Node::sock_info()</span></div>
+<div class="line"><a id="l06387" name="l06387"></a><span class="lineno"> 6387</span> </div>
+<div class="line"><a id="l06388" name="l06388"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09"> 6388</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">Node::sock_load_info_struct</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock, <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__info.html">Peer_socket_info</a>* stats)<span class="keyword"> const</span></div>
+<div class="line"><a id="l06389" name="l06389"></a><span class="lineno"> 6389</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l06390" name="l06390"></a><span class="lineno"> 6390</span>  <span class="keyword">using </span>boost::lexical_cast;</div>
+<div class="line"><a id="l06391" name="l06391"></a><span class="lineno"> 6391</span>  <span class="keyword">using </span>std::string;</div>
+<div class="line"><a id="l06392" name="l06392"></a><span class="lineno"> 6392</span> </div>
+<div class="line"><a id="l06393" name="l06393"></a><span class="lineno"> 6393</span>  <span class="comment">// We are in thread W.</span></div>
 <div class="line"><a id="l06394" name="l06394"></a><span class="lineno"> 6394</span> </div>
-<div class="line"><a id="l06395" name="l06395"></a><span class="lineno"> 6395</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a636e783090aee4ca8770a9f85f35dd21">m_int_state_str</a> = lexical_cast&lt;string&gt;(sock-&gt;m_int_state);</div>
-<div class="line"><a id="l06396" name="l06396"></a><span class="lineno"> 6396</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#acc0db949c58be9d7779c342cf5a67c9c">m_is_active_connect</a> = sock-&gt;m_active_connect;</div>
-<div class="line"><a id="l06397" name="l06397"></a><span class="lineno"> 6397</span>  <span class="comment">// No need to lock: no thread but W can write to it.</span></div>
-<div class="line"><a id="l06398" name="l06398"></a><span class="lineno"> 6398</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#aa24bf78d7bad33c38b96694733836224">m_disconnect_cause</a> = sock-&gt;m_disconnect_cause;</div>
-<div class="line"><a id="l06399" name="l06399"></a><span class="lineno"> 6399</span> </div>
-<div class="line"><a id="l06400" name="l06400"></a><span class="lineno"> 6400</span>  {</div>
-<div class="line"><a id="l06401" name="l06401"></a><span class="lineno"> 6401</span>    <span class="comment">// Gotta lock, as Receive and Send buffers can be modified at any time by thread U at least.</span></div>
-<div class="line"><a id="l06402" name="l06402"></a><span class="lineno"> 6402</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex);</div>
-<div class="line"><a id="l06403" name="l06403"></a><span class="lineno"> 6403</span>    stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a127a03a0b0e2f73d1059b7b42f251fa2">m_rcv_buf_size</a> = sock-&gt;m_rcv_buf.data_size();</div>
-<div class="line"><a id="l06404" name="l06404"></a><span class="lineno"> 6404</span>    stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a45e2cdb7f0a7e0fd470adeab4009f44a">m_snd_buf_size</a> = sock-&gt;m_snd_buf.data_size();</div>
-<div class="line"><a id="l06405" name="l06405"></a><span class="lineno"> 6405</span>  }</div>
-<div class="line"><a id="l06406" name="l06406"></a><span class="lineno"> 6406</span> </div>
-<div class="line"><a id="l06407" name="l06407"></a><span class="lineno"> 6407</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a84ae8091d89ae59304fd5ebd18539d8b">m_rcv_wnd</a> = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">sock_rcv_wnd</a>(sock);</div>
-<div class="line"><a id="l06408" name="l06408"></a><span class="lineno"> 6408</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a2562eebd9be1837147fef6fa616cb920">m_rcv_wnd_last_advertised</a> = sock-&gt;m_rcv_last_sent_rcv_wnd;</div>
-<div class="line"><a id="l06409" name="l06409"></a><span class="lineno"> 6409</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a3a38b2a47235621222eb58e6212a4f05">m_rcv_reassembly_q_data_size</a> = sock-&gt;m_rcv_reassembly_q_data_size;</div>
-<div class="line"><a id="l06410" name="l06410"></a><span class="lineno"> 6410</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a8c3326fea94763621c47c8b0e4d31eb2">m_rcv_packets_with_gaps</a> = sock-&gt;m_rcv_packets_with_gaps.size();</div>
-<div class="line"><a id="l06411" name="l06411"></a><span class="lineno"> 6411</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a4f97c94357653fe6df91677ef070d3e8">m_rcv_syn_rcvd_data_cumulative_size</a></div>
-<div class="line"><a id="l06412" name="l06412"></a><span class="lineno"> 6412</span>    = sock-&gt;m_rcv_syn_rcvd_data_q.empty() ? 0 : sock-&gt;m_rcv_syn_rcvd_data_cumulative_size;</div>
-<div class="line"><a id="l06413" name="l06413"></a><span class="lineno"> 6413</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a6210e5a1ecd85ed1cb46be696f5faec4">m_rcv_syn_rcvd_data_q_size</a> = sock-&gt;m_rcv_syn_rcvd_data_q.size();</div>
-<div class="line"><a id="l06414" name="l06414"></a><span class="lineno"> 6414</span> </div>
-<div class="line"><a id="l06415" name="l06415"></a><span class="lineno"> 6415</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#abb8b267eb5fa888e21e415f0e0d26a87">m_snd_rcv_wnd</a> = sock-&gt;m_snd_remote_rcv_wnd;</div>
-<div class="line"><a id="l06416" name="l06416"></a><span class="lineno"> 6416</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a784bd75264e26acbccd966e48c07dab9">m_snd_cong_ctl_in_flight_bytes</a> = sock-&gt;m_snd_flying_bytes;</div>
-<div class="line"><a id="l06417" name="l06417"></a><span class="lineno"> 6417</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a76f59a6c658d45c3283865b97dd01489">m_snd_cong_ctl_in_flight_count</a> = sock-&gt;m_snd_flying_pkts_by_sent_when.size();</div>
-<div class="line"><a id="l06418" name="l06418"></a><span class="lineno"> 6418</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a959898645f07733966840b7b8309e6c2">m_snd_cong_ctl_wnd_bytes</a> = sock-&gt;m_snd_cong_ctl-&gt;congestion_window_bytes();</div>
-<div class="line"><a id="l06419" name="l06419"></a><span class="lineno"> 6419</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#ab9da1d80bbed4b286c084dba3ed5b12e">m_snd_cong_ctl_wnd_count_approx</a> = stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a959898645f07733966840b7b8309e6c2">m_snd_cong_ctl_wnd_bytes</a> / sock-&gt;max_block_size();</div>
-<div class="line"><a id="l06420" name="l06420"></a><span class="lineno"> 6420</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a9fafa98dd848eb3944591472c6ce0548">m_snd_smoothed_round_trip_time</a> = sock-&gt;m_snd_smoothed_round_trip_time;</div>
-<div class="line"><a id="l06421" name="l06421"></a><span class="lineno"> 6421</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#aedadfb406ca6842ab1ecc0c4020e2a58">m_snd_round_trip_time_variance</a> = sock-&gt;m_round_trip_time_variance;</div>
-<div class="line"><a id="l06422" name="l06422"></a><span class="lineno"> 6422</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#afe104d81f760a454df6d3b0273a2d101">m_snd_drop_timeout</a> = sock-&gt;m_snd_drop_timeout;</div>
-<div class="line"><a id="l06423" name="l06423"></a><span class="lineno"> 6423</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#accd2ed68fd975dfa113f9f66c41d152a">m_snd_pacing_packet_q_size</a> = sock-&gt;m_snd_pacing_data.m_packet_q.size();</div>
-<div class="line"><a id="l06424" name="l06424"></a><span class="lineno"> 6424</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a3ac6229cdcd3e949523658b02fa7d0e0">m_snd_pacing_bytes_allowed_this_slice</a> = sock-&gt;m_snd_pacing_data.m_bytes_allowed_this_slice;</div>
-<div class="line"><a id="l06425" name="l06425"></a><span class="lineno"> 6425</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a6b03bba60c815cb17c40802eee400ae2">m_snd_pacing_slice_start</a> = sock-&gt;m_snd_pacing_data.m_slice_start;</div>
-<div class="line"><a id="l06426" name="l06426"></a><span class="lineno"> 6426</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a36ab155050d2cc96c5dc7dc9a2d1e2b1">m_snd_pacing_slice_period</a> = sock-&gt;m_snd_pacing_data.m_slice_period;</div>
-<div class="line"><a id="l06427" name="l06427"></a><span class="lineno"> 6427</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a788325f467420b83a92adce8302f2e18">m_snd_est_bandwidth_mbit_per_sec</a></div>
-<div class="line"><a id="l06428" name="l06428"></a><span class="lineno"> 6428</span>    = util::to_mbit_per_sec&lt;Send_bandwidth_estimator::Time_unit&gt;</div>
-<div class="line"><a id="l06429" name="l06429"></a><span class="lineno"> 6429</span>        (sock-&gt;m_snd_bandwidth_estimator-&gt;bandwidth_bytes_per_time());</div>
-<div class="line"><a id="l06430" name="l06430"></a><span class="lineno"> 6430</span> </div>
-<div class="line"><a id="l06431" name="l06431"></a><span class="lineno"> 6431</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a437ab79b98100ec9f8ee4f2195b24430">m_sock_opts</a> = sock-&gt;opt(sock-&gt;m_opts); <span class="comment">// Lock and copy... probably not the fastest thing ever....</span></div>
-<div class="line"><a id="l06432" name="l06432"></a><span class="lineno"> 6432</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a05abba2bde50995af42cd6cf02d0b167">m_node_opts</a> = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a43c42121d48a55a43a48e3a84bd10595">opt</a>(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#ade08f0457943f803c23b55649139c0d3">m_opts</a>); <span class="comment">// Ditto.</span></div>
-<div class="line"><a id="l06433" name="l06433"></a><span class="lineno"> 6433</span>}</div>
-<div class="line"><a id="l06434" name="l06434"></a><span class="lineno"> 6434</span> </div>
-<div class="line"><a id="l06435" name="l06435"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a755c329b9e0f2b8edb2e5b900bd2a337"> 6435</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a755c329b9e0f2b8edb2e5b900bd2a337">Node::sock_log_detail</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
-<div class="line"><a id="l06436" name="l06436"></a><span class="lineno"> 6436</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l06437" name="l06437"></a><span class="lineno"> 6437</span>  <span class="comment">// We are in thread W.</span></div>
-<div class="line"><a id="l06438" name="l06438"></a><span class="lineno"> 6438</span> </div>
-<div class="line"><a id="l06439" name="l06439"></a><span class="lineno"> 6439</span>  <span class="comment">/* We are to log details about the given socket.  Since the idea is that this would be called on</span></div>
-<div class="line"><a id="l06440" name="l06440"></a><span class="lineno"> 6440</span><span class="comment">   * the order of at most once or twice a second, we can be as verbose as we think is useful without</span></div>
-<div class="line"><a id="l06441" name="l06441"></a><span class="lineno"> 6441</span><span class="comment">   * (too much) concern for performance. */</span></div>
-<div class="line"><a id="l06442" name="l06442"></a><span class="lineno"> 6442</span> </div>
-<div class="line"><a id="l06443" name="l06443"></a><span class="lineno"> 6443</span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__info.html">Peer_socket_info</a> stats;</div>
-<div class="line"><a id="l06444" name="l06444"></a><span class="lineno"> 6444</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">sock_load_info_struct</a>(sock, &amp;stats); <span class="comment">// This involves some copying, but, again, we are not too concerned with speed.</span></div>
-<div class="line"><a id="l06445" name="l06445"></a><span class="lineno"> 6445</span> </div>
-<div class="line"><a id="l06446" name="l06446"></a><span class="lineno"> 6446</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;[=== Socket state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]. ===\n&quot;</span> &lt;&lt; stats);</div>
-<div class="line"><a id="l06447" name="l06447"></a><span class="lineno"> 6447</span> </div>
-<div class="line"><a id="l06448" name="l06448"></a><span class="lineno"> 6448</span>  <span class="comment">// Log receive and send windows details.  Force the logging of the most verbose possible amount of info.</span></div>
-<div class="line"><a id="l06449" name="l06449"></a><span class="lineno"> 6449</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a24785d3e04e0a9cd5daca43bc867e5aa">log_snd_window</a>(sock, <span class="keyword">true</span>);</div>
-<div class="line"><a id="l06450" name="l06450"></a><span class="lineno"> 6450</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac2fdb686165aae42f474cc655fca80c0">log_rcv_window</a>(sock, <span class="keyword">true</span>);</div>
-<div class="line"><a id="l06451" name="l06451"></a><span class="lineno"> 6451</span>  <span class="comment">// @todo Should this be inside Peer_socket_info also?</span></div>
-<div class="line"><a id="l06452" name="l06452"></a><span class="lineno"> 6452</span> </div>
-<div class="line"><a id="l06453" name="l06453"></a><span class="lineno"> 6453</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;=== Socket state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]. ===]&quot;</span>);</div>
-<div class="line"><a id="l06454" name="l06454"></a><span class="lineno"> 6454</span>} <span class="comment">// Node::sock_log_detail()</span></div>
-<div class="line"><a id="l06455" name="l06455"></a><span class="lineno"> 6455</span> </div>
-<div class="line"><a id="l06456" name="l06456"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868"> 6456</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">Node::advance_seq_num</a>(<a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>* seq_num, boost::shared_ptr&lt;const Data_packet&gt; data) <span class="comment">// Static.</span></div>
-<div class="line"><a id="l06457" name="l06457"></a><span class="lineno"> 6457</span>{</div>
-<div class="line"><a id="l06458" name="l06458"></a><span class="lineno"> 6458</span>  <span class="comment">/* We just need to increment *seq_num, which points to the start of the data in `data`,</span></div>
-<div class="line"><a id="l06459" name="l06459"></a><span class="lineno"> 6459</span><span class="comment">   * to a value that points to the data just past the end of the data in `data`.  Why is this in a</span></div>
-<div class="line"><a id="l06460" name="l06460"></a><span class="lineno"> 6460</span><span class="comment">   * separate method?  Answer: We may want to change the mapping from sequence number to byte of data.  In</span></div>
-<div class="line"><a id="l06461" name="l06461"></a><span class="lineno"> 6461</span><span class="comment">   * particular the mapping can be one-to-one, as in TCP.  Or it can be one sequence number to all bytes in a</span></div>
-<div class="line"><a id="l06462" name="l06462"></a><span class="lineno"> 6462</span><span class="comment">   * particular packet, which I&#39;ve seen in certain lesser known custom protocols.  This allows us to</span></div>
-<div class="line"><a id="l06463" name="l06463"></a><span class="lineno"> 6463</span><span class="comment">   * (hopefully) change the code in one place. */</span></div>
-<div class="line"><a id="l06464" name="l06464"></a><span class="lineno"> 6464</span> </div>
-<div class="line"><a id="l06465" name="l06465"></a><span class="lineno"> 6465</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">advance_seq_num</a>(seq_num, data-&gt;m_data.size());</div>
-<div class="line"><a id="l06466" name="l06466"></a><span class="lineno"> 6466</span>} <span class="comment">// Node::advance_seq_num()</span></div>
-<div class="line"><a id="l06467" name="l06467"></a><span class="lineno"> 6467</span> </div>
-<div class="line"><a id="l06468" name="l06468"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a95399fe09e4bd18ac2a43b2fbec8ab17"> 6468</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">Node::advance_seq_num</a>(<a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>* seq_num, <span class="keywordtype">size_t</span> data_size)</div>
-<div class="line"><a id="l06469" name="l06469"></a><span class="lineno"> 6469</span>{</div>
-<div class="line"><a id="l06470" name="l06470"></a><span class="lineno"> 6470</span>  <span class="comment">/* For now go with TCP&#39;s convention (one byte to one sequence number, no gaps).  While we deal</span></div>
-<div class="line"><a id="l06471" name="l06471"></a><span class="lineno"> 6471</span><span class="comment">   * with blocks, instead of streams, this may complicate the math a bit and use more sequence</span></div>
-<div class="line"><a id="l06472" name="l06472"></a><span class="lineno"> 6472</span><span class="comment">   * number space (faster wrapping).  However, it would make it easier to adapt the algorithms</span></div>
-<div class="line"><a id="l06473" name="l06473"></a><span class="lineno"> 6473</span><span class="comment">   * when we move to byte streams; and we currently use a sequence number so large that wrapping</span></div>
-<div class="line"><a id="l06474" name="l06474"></a><span class="lineno"> 6474</span><span class="comment">   * is impossible.  Update: we have moved to streams. */</span></div>
-<div class="line"><a id="l06475" name="l06475"></a><span class="lineno"> 6475</span>  *seq_num += data_size;</div>
-<div class="line"><a id="l06476" name="l06476"></a><span class="lineno"> 6476</span>}</div>
-<div class="line"><a id="l06477" name="l06477"></a><span class="lineno"> 6477</span> </div>
-<div class="line"><a id="l06478" name="l06478"></a><span class="lineno"> 6478</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Packet_map_iter&gt;</div>
-<div class="line"><a id="l06479" name="l06479"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a663f1fd8b524ffe63dfa6b7ca76b1a43"> 6479</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a663f1fd8b524ffe63dfa6b7ca76b1a43">Node::get_seq_num_range</a>(<span class="keyword">const</span> Packet_map_iter&amp; packet_it,</div>
-<div class="line"><a id="l06480" name="l06480"></a><span class="lineno"> 6480</span>                             <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>* seq_num_start, <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>* seq_num_end) <span class="comment">// Static.</span></div>
-<div class="line"><a id="l06481" name="l06481"></a><span class="lineno"> 6481</span>{</div>
-<div class="line"><a id="l06482" name="l06482"></a><span class="lineno"> 6482</span>  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num_start_cref = packet_it-&gt;first;</div>
-<div class="line"><a id="l06483" name="l06483"></a><span class="lineno"> 6483</span>  <span class="keywordflow">if</span> (seq_num_start)</div>
-<div class="line"><a id="l06484" name="l06484"></a><span class="lineno"> 6484</span>  {</div>
-<div class="line"><a id="l06485" name="l06485"></a><span class="lineno"> 6485</span>    *seq_num_start = seq_num_start_cref;</div>
-<div class="line"><a id="l06486" name="l06486"></a><span class="lineno"> 6486</span>  }</div>
-<div class="line"><a id="l06487" name="l06487"></a><span class="lineno"> 6487</span>  <span class="keywordflow">if</span> (seq_num_end)</div>
-<div class="line"><a id="l06488" name="l06488"></a><span class="lineno"> 6488</span>  {</div>
-<div class="line"><a id="l06489" name="l06489"></a><span class="lineno"> 6489</span>    *seq_num_end = seq_num_start_cref;</div>
-<div class="line"><a id="l06490" name="l06490"></a><span class="lineno"> 6490</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">advance_seq_num</a>(seq_num_end, packet_it-&gt;second-&gt;m_size);</div>
-<div class="line"><a id="l06491" name="l06491"></a><span class="lineno"> 6491</span>  }</div>
-<div class="line"><a id="l06492" name="l06492"></a><span class="lineno"> 6492</span>}</div>
-<div class="line"><a id="l06493" name="l06493"></a><span class="lineno"> 6493</span> </div>
-<div class="line"><a id="l06494" name="l06494"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a479dfcb7944cb6571af51f1feed2656d"> 6494</a></span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">Peer_socket::order_num_t</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a479dfcb7944cb6571af51f1feed2656d">Node::sock_get_new_snd_order_num</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock) <span class="comment">// Static.</span></div>
-<div class="line"><a id="l06495" name="l06495"></a><span class="lineno"> 6495</span>{</div>
-<div class="line"><a id="l06496" name="l06496"></a><span class="lineno"> 6496</span>  <span class="comment">// Since m_snd_last_order_num starts at 0, this ensures 0 is reserved, as advertised.</span></div>
-<div class="line"><a id="l06497" name="l06497"></a><span class="lineno"> 6497</span>  <span class="keywordflow">return</span> ++sock-&gt;m_snd_last_order_num;</div>
+<div class="line"><a id="l06395" name="l06395"></a><span class="lineno"> 6395</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#af8234f1645d63b9eee57f6937dc222de">m_rcv</a> = sock-&gt;m_rcv_stats.stats();</div>
+<div class="line"><a id="l06396" name="l06396"></a><span class="lineno"> 6396</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a02c61270ec35141affc5bb9f6edc5cd0">m_snd</a> = sock-&gt;m_snd_stats.stats();</div>
+<div class="line"><a id="l06397" name="l06397"></a><span class="lineno"> 6397</span> </div>
+<div class="line"><a id="l06398" name="l06398"></a><span class="lineno"> 6398</span>  <span class="comment">// @todo This is more suitable for the non-existent Node_info and Node::load_info_struct().  (It&#39;s not per-socket.)</span></div>
+<div class="line"><a id="l06399" name="l06399"></a><span class="lineno"> 6399</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a0ddfcfe377cda3266dfc968797ce4c18">m_low_lvl_max_buf_size</a> = <a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#a266ec5d00a44bc48caf37444eb2b43a1">m_low_lvl_max_buf_size</a>;</div>
+<div class="line"><a id="l06400" name="l06400"></a><span class="lineno"> 6400</span> </div>
+<div class="line"><a id="l06401" name="l06401"></a><span class="lineno"> 6401</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a636e783090aee4ca8770a9f85f35dd21">m_int_state_str</a> = lexical_cast&lt;string&gt;(sock-&gt;m_int_state);</div>
+<div class="line"><a id="l06402" name="l06402"></a><span class="lineno"> 6402</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#acc0db949c58be9d7779c342cf5a67c9c">m_is_active_connect</a> = sock-&gt;m_active_connect;</div>
+<div class="line"><a id="l06403" name="l06403"></a><span class="lineno"> 6403</span>  <span class="comment">// No need to lock: no thread but W can write to it.</span></div>
+<div class="line"><a id="l06404" name="l06404"></a><span class="lineno"> 6404</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#aa24bf78d7bad33c38b96694733836224">m_disconnect_cause</a> = sock-&gt;m_disconnect_cause;</div>
+<div class="line"><a id="l06405" name="l06405"></a><span class="lineno"> 6405</span> </div>
+<div class="line"><a id="l06406" name="l06406"></a><span class="lineno"> 6406</span>  {</div>
+<div class="line"><a id="l06407" name="l06407"></a><span class="lineno"> 6407</span>    <span class="comment">// Gotta lock, as Receive and Send buffers can be modified at any time by thread U at least.</span></div>
+<div class="line"><a id="l06408" name="l06408"></a><span class="lineno"> 6408</span>    <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Peer_socket::Lock_guard</a> lock(sock-&gt;m_mutex);</div>
+<div class="line"><a id="l06409" name="l06409"></a><span class="lineno"> 6409</span>    stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a127a03a0b0e2f73d1059b7b42f251fa2">m_rcv_buf_size</a> = sock-&gt;m_rcv_buf.data_size();</div>
+<div class="line"><a id="l06410" name="l06410"></a><span class="lineno"> 6410</span>    stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a45e2cdb7f0a7e0fd470adeab4009f44a">m_snd_buf_size</a> = sock-&gt;m_snd_buf.data_size();</div>
+<div class="line"><a id="l06411" name="l06411"></a><span class="lineno"> 6411</span>  }</div>
+<div class="line"><a id="l06412" name="l06412"></a><span class="lineno"> 6412</span> </div>
+<div class="line"><a id="l06413" name="l06413"></a><span class="lineno"> 6413</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a84ae8091d89ae59304fd5ebd18539d8b">m_rcv_wnd</a> = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">sock_rcv_wnd</a>(sock);</div>
+<div class="line"><a id="l06414" name="l06414"></a><span class="lineno"> 6414</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a2562eebd9be1837147fef6fa616cb920">m_rcv_wnd_last_advertised</a> = sock-&gt;m_rcv_last_sent_rcv_wnd;</div>
+<div class="line"><a id="l06415" name="l06415"></a><span class="lineno"> 6415</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a3a38b2a47235621222eb58e6212a4f05">m_rcv_reassembly_q_data_size</a> = sock-&gt;m_rcv_reassembly_q_data_size;</div>
+<div class="line"><a id="l06416" name="l06416"></a><span class="lineno"> 6416</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a8c3326fea94763621c47c8b0e4d31eb2">m_rcv_packets_with_gaps</a> = sock-&gt;m_rcv_packets_with_gaps.size();</div>
+<div class="line"><a id="l06417" name="l06417"></a><span class="lineno"> 6417</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a4f97c94357653fe6df91677ef070d3e8">m_rcv_syn_rcvd_data_cumulative_size</a></div>
+<div class="line"><a id="l06418" name="l06418"></a><span class="lineno"> 6418</span>    = sock-&gt;m_rcv_syn_rcvd_data_q.empty() ? 0 : sock-&gt;m_rcv_syn_rcvd_data_cumulative_size;</div>
+<div class="line"><a id="l06419" name="l06419"></a><span class="lineno"> 6419</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a6210e5a1ecd85ed1cb46be696f5faec4">m_rcv_syn_rcvd_data_q_size</a> = sock-&gt;m_rcv_syn_rcvd_data_q.size();</div>
+<div class="line"><a id="l06420" name="l06420"></a><span class="lineno"> 6420</span> </div>
+<div class="line"><a id="l06421" name="l06421"></a><span class="lineno"> 6421</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#abb8b267eb5fa888e21e415f0e0d26a87">m_snd_rcv_wnd</a> = sock-&gt;m_snd_remote_rcv_wnd;</div>
+<div class="line"><a id="l06422" name="l06422"></a><span class="lineno"> 6422</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a784bd75264e26acbccd966e48c07dab9">m_snd_cong_ctl_in_flight_bytes</a> = sock-&gt;m_snd_flying_bytes;</div>
+<div class="line"><a id="l06423" name="l06423"></a><span class="lineno"> 6423</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a76f59a6c658d45c3283865b97dd01489">m_snd_cong_ctl_in_flight_count</a> = sock-&gt;m_snd_flying_pkts_by_sent_when.size();</div>
+<div class="line"><a id="l06424" name="l06424"></a><span class="lineno"> 6424</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a959898645f07733966840b7b8309e6c2">m_snd_cong_ctl_wnd_bytes</a> = sock-&gt;m_snd_cong_ctl-&gt;congestion_window_bytes();</div>
+<div class="line"><a id="l06425" name="l06425"></a><span class="lineno"> 6425</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#ab9da1d80bbed4b286c084dba3ed5b12e">m_snd_cong_ctl_wnd_count_approx</a> = stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a959898645f07733966840b7b8309e6c2">m_snd_cong_ctl_wnd_bytes</a> / sock-&gt;max_block_size();</div>
+<div class="line"><a id="l06426" name="l06426"></a><span class="lineno"> 6426</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a9fafa98dd848eb3944591472c6ce0548">m_snd_smoothed_round_trip_time</a> = sock-&gt;m_snd_smoothed_round_trip_time;</div>
+<div class="line"><a id="l06427" name="l06427"></a><span class="lineno"> 6427</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#aedadfb406ca6842ab1ecc0c4020e2a58">m_snd_round_trip_time_variance</a> = sock-&gt;m_round_trip_time_variance;</div>
+<div class="line"><a id="l06428" name="l06428"></a><span class="lineno"> 6428</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#afe104d81f760a454df6d3b0273a2d101">m_snd_drop_timeout</a> = sock-&gt;m_snd_drop_timeout;</div>
+<div class="line"><a id="l06429" name="l06429"></a><span class="lineno"> 6429</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#accd2ed68fd975dfa113f9f66c41d152a">m_snd_pacing_packet_q_size</a> = sock-&gt;m_snd_pacing_data.m_packet_q.size();</div>
+<div class="line"><a id="l06430" name="l06430"></a><span class="lineno"> 6430</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a3ac6229cdcd3e949523658b02fa7d0e0">m_snd_pacing_bytes_allowed_this_slice</a> = sock-&gt;m_snd_pacing_data.m_bytes_allowed_this_slice;</div>
+<div class="line"><a id="l06431" name="l06431"></a><span class="lineno"> 6431</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a6b03bba60c815cb17c40802eee400ae2">m_snd_pacing_slice_start</a> = sock-&gt;m_snd_pacing_data.m_slice_start;</div>
+<div class="line"><a id="l06432" name="l06432"></a><span class="lineno"> 6432</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a36ab155050d2cc96c5dc7dc9a2d1e2b1">m_snd_pacing_slice_period</a> = sock-&gt;m_snd_pacing_data.m_slice_period;</div>
+<div class="line"><a id="l06433" name="l06433"></a><span class="lineno"> 6433</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a788325f467420b83a92adce8302f2e18">m_snd_est_bandwidth_mbit_per_sec</a></div>
+<div class="line"><a id="l06434" name="l06434"></a><span class="lineno"> 6434</span>    = util::to_mbit_per_sec&lt;Send_bandwidth_estimator::Time_unit&gt;</div>
+<div class="line"><a id="l06435" name="l06435"></a><span class="lineno"> 6435</span>        (sock-&gt;m_snd_bandwidth_estimator-&gt;bandwidth_bytes_per_time());</div>
+<div class="line"><a id="l06436" name="l06436"></a><span class="lineno"> 6436</span> </div>
+<div class="line"><a id="l06437" name="l06437"></a><span class="lineno"> 6437</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a437ab79b98100ec9f8ee4f2195b24430">m_sock_opts</a> = sock-&gt;opt(sock-&gt;m_opts); <span class="comment">// Lock and copy... probably not the fastest thing ever....</span></div>
+<div class="line"><a id="l06438" name="l06438"></a><span class="lineno"> 6438</span>  stats-&gt;<a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket__info.html#a05abba2bde50995af42cd6cf02d0b167">m_node_opts</a> = <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a43c42121d48a55a43a48e3a84bd10595">opt</a>(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Node.html#ade08f0457943f803c23b55649139c0d3">m_opts</a>); <span class="comment">// Ditto.</span></div>
+<div class="line"><a id="l06439" name="l06439"></a><span class="lineno"> 6439</span>}</div>
+<div class="line"><a id="l06440" name="l06440"></a><span class="lineno"> 6440</span> </div>
+<div class="line"><a id="l06441" name="l06441"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a755c329b9e0f2b8edb2e5b900bd2a337"> 6441</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a755c329b9e0f2b8edb2e5b900bd2a337">Node::sock_log_detail</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aef7998db71c60eeb5d1e3d1a97c14886">Peer_socket::Const_ptr</a> sock)<span class="keyword"> const</span></div>
+<div class="line"><a id="l06442" name="l06442"></a><span class="lineno"> 6442</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l06443" name="l06443"></a><span class="lineno"> 6443</span>  <span class="comment">// We are in thread W.</span></div>
+<div class="line"><a id="l06444" name="l06444"></a><span class="lineno"> 6444</span> </div>
+<div class="line"><a id="l06445" name="l06445"></a><span class="lineno"> 6445</span>  <span class="comment">/* We are to log details about the given socket.  Since the idea is that this would be called on</span></div>
+<div class="line"><a id="l06446" name="l06446"></a><span class="lineno"> 6446</span><span class="comment">   * the order of at most once or twice a second, we can be as verbose as we think is useful without</span></div>
+<div class="line"><a id="l06447" name="l06447"></a><span class="lineno"> 6447</span><span class="comment">   * (too much) concern for performance. */</span></div>
+<div class="line"><a id="l06448" name="l06448"></a><span class="lineno"> 6448</span> </div>
+<div class="line"><a id="l06449" name="l06449"></a><span class="lineno"> 6449</span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__info.html">Peer_socket_info</a> stats;</div>
+<div class="line"><a id="l06450" name="l06450"></a><span class="lineno"> 6450</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">sock_load_info_struct</a>(sock, &amp;stats); <span class="comment">// This involves some copying, but, again, we are not too concerned with speed.</span></div>
+<div class="line"><a id="l06451" name="l06451"></a><span class="lineno"> 6451</span> </div>
+<div class="line"><a id="l06452" name="l06452"></a><span class="lineno"> 6452</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;[=== Socket state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]. ===\n&quot;</span> &lt;&lt; stats);</div>
+<div class="line"><a id="l06453" name="l06453"></a><span class="lineno"> 6453</span> </div>
+<div class="line"><a id="l06454" name="l06454"></a><span class="lineno"> 6454</span>  <span class="comment">// Log receive and send windows details.  Force the logging of the most verbose possible amount of info.</span></div>
+<div class="line"><a id="l06455" name="l06455"></a><span class="lineno"> 6455</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a24785d3e04e0a9cd5daca43bc867e5aa">log_snd_window</a>(sock, <span class="keyword">true</span>);</div>
+<div class="line"><a id="l06456" name="l06456"></a><span class="lineno"> 6456</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#ac2fdb686165aae42f474cc655fca80c0">log_rcv_window</a>(sock, <span class="keyword">true</span>);</div>
+<div class="line"><a id="l06457" name="l06457"></a><span class="lineno"> 6457</span>  <span class="comment">// @todo Should this be inside Peer_socket_info also?</span></div>
+<div class="line"><a id="l06458" name="l06458"></a><span class="lineno"> 6458</span> </div>
+<div class="line"><a id="l06459" name="l06459"></a><span class="lineno"> 6459</span>  <a class="code hl_define" href="log_8hpp.html#a325fdd4b5cf0be49b37d3b7b7c29070d">FLOW_LOG_INFO</a>(<span class="stringliteral">&quot;=== Socket state for [&quot;</span> &lt;&lt; sock &lt;&lt; <span class="stringliteral">&quot;]. ===]&quot;</span>);</div>
+<div class="line"><a id="l06460" name="l06460"></a><span class="lineno"> 6460</span>} <span class="comment">// Node::sock_log_detail()</span></div>
+<div class="line"><a id="l06461" name="l06461"></a><span class="lineno"> 6461</span> </div>
+<div class="line"><a id="l06462" name="l06462"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868"> 6462</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">Node::advance_seq_num</a>(<a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>* seq_num, boost::shared_ptr&lt;const Data_packet&gt; data) <span class="comment">// Static.</span></div>
+<div class="line"><a id="l06463" name="l06463"></a><span class="lineno"> 6463</span>{</div>
+<div class="line"><a id="l06464" name="l06464"></a><span class="lineno"> 6464</span>  <span class="comment">/* We just need to increment *seq_num, which points to the start of the data in `data`,</span></div>
+<div class="line"><a id="l06465" name="l06465"></a><span class="lineno"> 6465</span><span class="comment">   * to a value that points to the data just past the end of the data in `data`.  Why is this in a</span></div>
+<div class="line"><a id="l06466" name="l06466"></a><span class="lineno"> 6466</span><span class="comment">   * separate method?  Answer: We may want to change the mapping from sequence number to byte of data.  In</span></div>
+<div class="line"><a id="l06467" name="l06467"></a><span class="lineno"> 6467</span><span class="comment">   * particular the mapping can be one-to-one, as in TCP.  Or it can be one sequence number to all bytes in a</span></div>
+<div class="line"><a id="l06468" name="l06468"></a><span class="lineno"> 6468</span><span class="comment">   * particular packet, which I&#39;ve seen in certain lesser known custom protocols.  This allows us to</span></div>
+<div class="line"><a id="l06469" name="l06469"></a><span class="lineno"> 6469</span><span class="comment">   * (hopefully) change the code in one place. */</span></div>
+<div class="line"><a id="l06470" name="l06470"></a><span class="lineno"> 6470</span> </div>
+<div class="line"><a id="l06471" name="l06471"></a><span class="lineno"> 6471</span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">advance_seq_num</a>(seq_num, data-&gt;m_data.size());</div>
+<div class="line"><a id="l06472" name="l06472"></a><span class="lineno"> 6472</span>} <span class="comment">// Node::advance_seq_num()</span></div>
+<div class="line"><a id="l06473" name="l06473"></a><span class="lineno"> 6473</span> </div>
+<div class="line"><a id="l06474" name="l06474"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a95399fe09e4bd18ac2a43b2fbec8ab17"> 6474</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">Node::advance_seq_num</a>(<a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>* seq_num, <span class="keywordtype">size_t</span> data_size)</div>
+<div class="line"><a id="l06475" name="l06475"></a><span class="lineno"> 6475</span>{</div>
+<div class="line"><a id="l06476" name="l06476"></a><span class="lineno"> 6476</span>  <span class="comment">/* For now go with TCP&#39;s convention (one byte to one sequence number, no gaps).  While we deal</span></div>
+<div class="line"><a id="l06477" name="l06477"></a><span class="lineno"> 6477</span><span class="comment">   * with blocks, instead of streams, this may complicate the math a bit and use more sequence</span></div>
+<div class="line"><a id="l06478" name="l06478"></a><span class="lineno"> 6478</span><span class="comment">   * number space (faster wrapping).  However, it would make it easier to adapt the algorithms</span></div>
+<div class="line"><a id="l06479" name="l06479"></a><span class="lineno"> 6479</span><span class="comment">   * when we move to byte streams; and we currently use a sequence number so large that wrapping</span></div>
+<div class="line"><a id="l06480" name="l06480"></a><span class="lineno"> 6480</span><span class="comment">   * is impossible.  Update: we have moved to streams. */</span></div>
+<div class="line"><a id="l06481" name="l06481"></a><span class="lineno"> 6481</span>  *seq_num += data_size;</div>
+<div class="line"><a id="l06482" name="l06482"></a><span class="lineno"> 6482</span>}</div>
+<div class="line"><a id="l06483" name="l06483"></a><span class="lineno"> 6483</span> </div>
+<div class="line"><a id="l06484" name="l06484"></a><span class="lineno"> 6484</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Packet_map_iter&gt;</div>
+<div class="line"><a id="l06485" name="l06485"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a663f1fd8b524ffe63dfa6b7ca76b1a43"> 6485</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a663f1fd8b524ffe63dfa6b7ca76b1a43">Node::get_seq_num_range</a>(<span class="keyword">const</span> Packet_map_iter&amp; packet_it,</div>
+<div class="line"><a id="l06486" name="l06486"></a><span class="lineno"> 6486</span>                             <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>* seq_num_start, <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>* seq_num_end) <span class="comment">// Static.</span></div>
+<div class="line"><a id="l06487" name="l06487"></a><span class="lineno"> 6487</span>{</div>
+<div class="line"><a id="l06488" name="l06488"></a><span class="lineno"> 6488</span>  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&amp; seq_num_start_cref = packet_it-&gt;first;</div>
+<div class="line"><a id="l06489" name="l06489"></a><span class="lineno"> 6489</span>  <span class="keywordflow">if</span> (seq_num_start)</div>
+<div class="line"><a id="l06490" name="l06490"></a><span class="lineno"> 6490</span>  {</div>
+<div class="line"><a id="l06491" name="l06491"></a><span class="lineno"> 6491</span>    *seq_num_start = seq_num_start_cref;</div>
+<div class="line"><a id="l06492" name="l06492"></a><span class="lineno"> 6492</span>  }</div>
+<div class="line"><a id="l06493" name="l06493"></a><span class="lineno"> 6493</span>  <span class="keywordflow">if</span> (seq_num_end)</div>
+<div class="line"><a id="l06494" name="l06494"></a><span class="lineno"> 6494</span>  {</div>
+<div class="line"><a id="l06495" name="l06495"></a><span class="lineno"> 6495</span>    *seq_num_end = seq_num_start_cref;</div>
+<div class="line"><a id="l06496" name="l06496"></a><span class="lineno"> 6496</span>    <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">advance_seq_num</a>(seq_num_end, packet_it-&gt;second-&gt;m_size);</div>
+<div class="line"><a id="l06497" name="l06497"></a><span class="lineno"> 6497</span>  }</div>
 <div class="line"><a id="l06498" name="l06498"></a><span class="lineno"> 6498</span>}</div>
 <div class="line"><a id="l06499" name="l06499"></a><span class="lineno"> 6499</span> </div>
-<div class="line"><a id="l06500" name="l06500"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a6daaa6a5a7d0b7e5a2266dd9db400c01"> 6500</a></span><a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket.html">Peer_socket</a>* <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a6daaa6a5a7d0b7e5a2266dd9db400c01">Node::sock_create</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>&amp; opts) <span class="comment">// Virtual.</span></div>
+<div class="line"><a id="l06500" name="l06500"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a479dfcb7944cb6571af51f1feed2656d"> 6500</a></span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">Peer_socket::order_num_t</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a479dfcb7944cb6571af51f1feed2656d">Node::sock_get_new_snd_order_num</a>(<a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Peer_socket::Ptr</a> sock) <span class="comment">// Static.</span></div>
 <div class="line"><a id="l06501" name="l06501"></a><span class="lineno"> 6501</span>{</div>
-<div class="line"><a id="l06502" name="l06502"></a><span class="lineno"> 6502</span>  <span class="comment">// Just make a regular net_flow::Peer_socket.</span></div>
-<div class="line"><a id="l06503" name="l06503"></a><span class="lineno"> 6503</span>  <span class="keywordflow">return</span> sock_create_forward_plus_ctor_args&lt;Peer_socket&gt;(opts);</div>
+<div class="line"><a id="l06502" name="l06502"></a><span class="lineno"> 6502</span>  <span class="comment">// Since m_snd_last_order_num starts at 0, this ensures 0 is reserved, as advertised.</span></div>
+<div class="line"><a id="l06503" name="l06503"></a><span class="lineno"> 6503</span>  <span class="keywordflow">return</span> ++sock-&gt;m_snd_last_order_num;</div>
 <div class="line"><a id="l06504" name="l06504"></a><span class="lineno"> 6504</span>}</div>
 <div class="line"><a id="l06505" name="l06505"></a><span class="lineno"> 6505</span> </div>
-<div class="line"><a id="l06506" name="l06506"></a><span class="lineno"> 6506</span><span class="comment">// Free implementations.</span></div>
-<div class="line"><a id="l06507" name="l06507"></a><span class="lineno"> 6507</span> </div>
-<div class="line"><a id="l06508" name="l06508"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a8497776b61df32a79707c264f8f2422b"> 6508</a></span>std::ostream&amp; <a class="code hl_function" href="namespaceflow_1_1net__flow.html#ab9f537c84f77e9b8fa742fc5dc6d5693">operator&lt;&lt;</a>(std::ostream&amp; os, <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket.html">Peer_socket</a>* sock)</div>
-<div class="line"><a id="l06509" name="l06509"></a><span class="lineno"> 6509</span>{</div>
-<div class="line"><a id="l06510" name="l06510"></a><span class="lineno"> 6510</span>  <span class="keywordflow">return</span></div>
-<div class="line"><a id="l06511" name="l06511"></a><span class="lineno"> 6511</span>    sock</div>
-<div class="line"><a id="l06512" name="l06512"></a><span class="lineno"> 6512</span>      ? (os</div>
-<div class="line"><a id="l06513" name="l06513"></a><span class="lineno"> 6513</span>         &lt;&lt; <span class="stringliteral">&quot;NetFlow_socket &quot;</span></div>
-<div class="line"><a id="l06514" name="l06514"></a><span class="lineno"> 6514</span>         &lt;&lt; <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a5e423a9fd18a45cc7cc5fc34af29161e">remote_endpoint</a>() &lt;&lt; <span class="stringliteral">&quot;]&lt;=&gt;[NetFlow [:&quot;</span> &lt;&lt; sock-&gt;<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a7af387476aa0bdc6b3906c153d824acb">local_port</a>() &lt;&lt; <span class="stringliteral">&quot;]] &quot;</span></div>
-<div class="line"><a id="l06515" name="l06515"></a><span class="lineno"> 6515</span>         <span class="stringliteral">&quot;@&quot;</span> &lt;&lt; <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">void</span>*<span class="keyword">&gt;</span>(sock))</div>
-<div class="line"><a id="l06516" name="l06516"></a><span class="lineno"> 6516</span>      : (os &lt;&lt; <span class="stringliteral">&quot;NetFlow_socket@null&quot;</span>);</div>
-<div class="line"><a id="l06517" name="l06517"></a><span class="lineno"> 6517</span>}</div>
-<div class="line"><a id="l06518" name="l06518"></a><span class="lineno"> 6518</span><span class="comment"></span> </div>
-<div class="line"><a id="l06519" name="l06519"></a><span class="lineno"> 6519</span><span class="comment">/// @cond</span></div>
-<div class="line"><a id="l06520" name="l06520"></a><span class="lineno"> 6520</span><span class="comment"></span><span class="comment">/* -^- Doxygen, please ignore the following.  (Don&#39;t want docs generated for temp macro; this is more maintainable</span></div>
-<div class="line"><a id="l06521" name="l06521"></a><span class="lineno"> 6521</span><span class="comment"> * than specifying the macro name to omit it, in Doxygen-config EXCLUDE_SYMBOLS.) */</span></div>
-<div class="line"><a id="l06522" name="l06522"></a><span class="lineno"> 6522</span> </div>
-<div class="line"><a id="l06523" name="l06523"></a><span class="lineno"> 6523</span><span class="comment">// That&#39;s right, I did this.  Wanna fight about it?</span></div>
-<div class="line"><a id="l06524" name="l06524"></a><span class="lineno"> 6524</span><span class="preprocessor">#define STATE_TO_CASE_STATEMENT(ARG_state) \</span></div>
-<div class="line"><a id="l06525" name="l06525"></a><span class="lineno"> 6525</span><span class="preprocessor">  case Peer_socket::Int_state::S_##ARG_state: \</span></div>
-<div class="line"><a id="l06526" name="l06526"></a><span class="lineno"> 6526</span><span class="preprocessor">    return os &lt;&lt; #ARG_state</span></div>
-<div class="line"><a id="l06527" name="l06527"></a><span class="lineno"> 6527</span> </div>
-<div class="line"><a id="l06528" name="l06528"></a><span class="lineno"> 6528</span><span class="comment">// -v- Doxygen, please stop ignoring.</span><span class="comment"></span></div>
-<div class="line"><a id="l06529" name="l06529"></a><span class="lineno"> 6529</span><span class="comment">/// @endcond</span></div>
-<div class="line"><a id="l06530" name="l06530"></a><span class="lineno"> 6530</span><span class="comment"></span> </div>
-<div class="line"><a id="l06531" name="l06531"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a03ea7069aa4779abaf274989bd4c2fb6"> 6531</a></span>std::ostream&amp; <a class="code hl_function" href="namespaceflow_1_1net__flow.html#ab9f537c84f77e9b8fa742fc5dc6d5693">operator&lt;&lt;</a>(std::ostream&amp; os, <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">Peer_socket::Int_state</a> state)</div>
-<div class="line"><a id="l06532" name="l06532"></a><span class="lineno"> 6532</span>{</div>
-<div class="line"><a id="l06533" name="l06533"></a><span class="lineno"> 6533</span>  <span class="keywordflow">switch</span> (state)</div>
-<div class="line"><a id="l06534" name="l06534"></a><span class="lineno"> 6534</span>  {</div>
-<div class="line"><a id="l06535" name="l06535"></a><span class="lineno"> 6535</span>    STATE_TO_CASE_STATEMENT(CLOSED);</div>
-<div class="line"><a id="l06536" name="l06536"></a><span class="lineno"> 6536</span>    STATE_TO_CASE_STATEMENT(SYN_SENT);</div>
-<div class="line"><a id="l06537" name="l06537"></a><span class="lineno"> 6537</span>    STATE_TO_CASE_STATEMENT(SYN_RCVD);</div>
-<div class="line"><a id="l06538" name="l06538"></a><span class="lineno"> 6538</span>    STATE_TO_CASE_STATEMENT(ESTABLISHED);</div>
-<div class="line"><a id="l06539" name="l06539"></a><span class="lineno"> 6539</span>  }</div>
-<div class="line"><a id="l06540" name="l06540"></a><span class="lineno"> 6540</span>  <span class="keywordflow">return</span> os;</div>
-<div class="line"><a id="l06541" name="l06541"></a><span class="lineno"> 6541</span><span class="preprocessor">#undef STATE_TO_CASE_STATEMENT</span></div>
-<div class="line"><a id="l06542" name="l06542"></a><span class="lineno"> 6542</span>}</div>
-<div class="line"><a id="l06543" name="l06543"></a><span class="lineno"> 6543</span> </div>
-<div class="line"><a id="l06544" name="l06544"></a><span class="lineno"> 6544</span>} <span class="comment">// namespace flow::net_flow</span></div>
+<div class="line"><a id="l06506" name="l06506"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Node.html#a6daaa6a5a7d0b7e5a2266dd9db400c01"> 6506</a></span><a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket.html">Peer_socket</a>* <a class="code hl_function" href="classflow_1_1net__flow_1_1Node.html#a6daaa6a5a7d0b7e5a2266dd9db400c01">Node::sock_create</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>&amp; opts) <span class="comment">// Virtual.</span></div>
+<div class="line"><a id="l06507" name="l06507"></a><span class="lineno"> 6507</span>{</div>
+<div class="line"><a id="l06508" name="l06508"></a><span class="lineno"> 6508</span>  <span class="comment">// Just make a regular net_flow::Peer_socket.</span></div>
+<div class="line"><a id="l06509" name="l06509"></a><span class="lineno"> 6509</span>  <span class="keywordflow">return</span> sock_create_forward_plus_ctor_args&lt;Peer_socket&gt;(opts);</div>
+<div class="line"><a id="l06510" name="l06510"></a><span class="lineno"> 6510</span>}</div>
+<div class="line"><a id="l06511" name="l06511"></a><span class="lineno"> 6511</span> </div>
+<div class="line"><a id="l06512" name="l06512"></a><span class="lineno"> 6512</span><span class="comment">// Free implementations.</span></div>
+<div class="line"><a id="l06513" name="l06513"></a><span class="lineno"> 6513</span> </div>
+<div class="line"><a id="l06514" name="l06514"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a8497776b61df32a79707c264f8f2422b"> 6514</a></span>std::ostream&amp; <a class="code hl_function" href="namespaceflow_1_1net__flow.html#ab9f537c84f77e9b8fa742fc5dc6d5693">operator&lt;&lt;</a>(std::ostream&amp; os, <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket.html">Peer_socket</a>* sock)</div>
+<div class="line"><a id="l06515" name="l06515"></a><span class="lineno"> 6515</span>{</div>
+<div class="line"><a id="l06516" name="l06516"></a><span class="lineno"> 6516</span>  <span class="keywordflow">return</span></div>
+<div class="line"><a id="l06517" name="l06517"></a><span class="lineno"> 6517</span>    sock</div>
+<div class="line"><a id="l06518" name="l06518"></a><span class="lineno"> 6518</span>      ? (os</div>
+<div class="line"><a id="l06519" name="l06519"></a><span class="lineno"> 6519</span>         &lt;&lt; <span class="stringliteral">&quot;NetFlow_socket &quot;</span></div>
+<div class="line"><a id="l06520" name="l06520"></a><span class="lineno"> 6520</span>         &lt;&lt; <span class="stringliteral">&quot;[&quot;</span> &lt;&lt; sock-&gt;<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a5e423a9fd18a45cc7cc5fc34af29161e">remote_endpoint</a>() &lt;&lt; <span class="stringliteral">&quot;]&lt;=&gt;[NetFlow [:&quot;</span> &lt;&lt; sock-&gt;<a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a7af387476aa0bdc6b3906c153d824acb">local_port</a>() &lt;&lt; <span class="stringliteral">&quot;]] &quot;</span></div>
+<div class="line"><a id="l06521" name="l06521"></a><span class="lineno"> 6521</span>         <span class="stringliteral">&quot;@&quot;</span> &lt;&lt; <span class="keyword">static_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">void</span>*<span class="keyword">&gt;</span>(sock))</div>
+<div class="line"><a id="l06522" name="l06522"></a><span class="lineno"> 6522</span>      : (os &lt;&lt; <span class="stringliteral">&quot;NetFlow_socket@null&quot;</span>);</div>
+<div class="line"><a id="l06523" name="l06523"></a><span class="lineno"> 6523</span>}</div>
+<div class="line"><a id="l06524" name="l06524"></a><span class="lineno"> 6524</span><span class="comment"></span> </div>
+<div class="line"><a id="l06525" name="l06525"></a><span class="lineno"> 6525</span><span class="comment">/// @cond</span></div>
+<div class="line"><a id="l06526" name="l06526"></a><span class="lineno"> 6526</span><span class="comment"></span><span class="comment">/* -^- Doxygen, please ignore the following.  (Don&#39;t want docs generated for temp macro; this is more maintainable</span></div>
+<div class="line"><a id="l06527" name="l06527"></a><span class="lineno"> 6527</span><span class="comment"> * than specifying the macro name to omit it, in Doxygen-config EXCLUDE_SYMBOLS.) */</span></div>
+<div class="line"><a id="l06528" name="l06528"></a><span class="lineno"> 6528</span> </div>
+<div class="line"><a id="l06529" name="l06529"></a><span class="lineno"> 6529</span><span class="comment">// That&#39;s right, I did this.  Wanna fight about it?</span></div>
+<div class="line"><a id="l06530" name="l06530"></a><span class="lineno"> 6530</span><span class="preprocessor">#define STATE_TO_CASE_STATEMENT(ARG_state) \</span></div>
+<div class="line"><a id="l06531" name="l06531"></a><span class="lineno"> 6531</span><span class="preprocessor">  case Peer_socket::Int_state::S_##ARG_state: \</span></div>
+<div class="line"><a id="l06532" name="l06532"></a><span class="lineno"> 6532</span><span class="preprocessor">    return os &lt;&lt; #ARG_state</span></div>
+<div class="line"><a id="l06533" name="l06533"></a><span class="lineno"> 6533</span> </div>
+<div class="line"><a id="l06534" name="l06534"></a><span class="lineno"> 6534</span><span class="comment">// -v- Doxygen, please stop ignoring.</span><span class="comment"></span></div>
+<div class="line"><a id="l06535" name="l06535"></a><span class="lineno"> 6535</span><span class="comment">/// @endcond</span></div>
+<div class="line"><a id="l06536" name="l06536"></a><span class="lineno"> 6536</span><span class="comment"></span> </div>
+<div class="line"><a id="l06537" name="l06537"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a03ea7069aa4779abaf274989bd4c2fb6"> 6537</a></span>std::ostream&amp; <a class="code hl_function" href="namespaceflow_1_1net__flow.html#ab9f537c84f77e9b8fa742fc5dc6d5693">operator&lt;&lt;</a>(std::ostream&amp; os, <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">Peer_socket::Int_state</a> state)</div>
+<div class="line"><a id="l06538" name="l06538"></a><span class="lineno"> 6538</span>{</div>
+<div class="line"><a id="l06539" name="l06539"></a><span class="lineno"> 6539</span>  <span class="keywordflow">switch</span> (state)</div>
+<div class="line"><a id="l06540" name="l06540"></a><span class="lineno"> 6540</span>  {</div>
+<div class="line"><a id="l06541" name="l06541"></a><span class="lineno"> 6541</span>    STATE_TO_CASE_STATEMENT(CLOSED);</div>
+<div class="line"><a id="l06542" name="l06542"></a><span class="lineno"> 6542</span>    STATE_TO_CASE_STATEMENT(SYN_SENT);</div>
+<div class="line"><a id="l06543" name="l06543"></a><span class="lineno"> 6543</span>    STATE_TO_CASE_STATEMENT(SYN_RCVD);</div>
+<div class="line"><a id="l06544" name="l06544"></a><span class="lineno"> 6544</span>    STATE_TO_CASE_STATEMENT(ESTABLISHED);</div>
+<div class="line"><a id="l06545" name="l06545"></a><span class="lineno"> 6545</span>  }</div>
+<div class="line"><a id="l06546" name="l06546"></a><span class="lineno"> 6546</span>  <span class="keywordflow">return</span> os;</div>
+<div class="line"><a id="l06547" name="l06547"></a><span class="lineno"> 6547</span><span class="preprocessor">#undef STATE_TO_CASE_STATEMENT</span></div>
+<div class="line"><a id="l06548" name="l06548"></a><span class="lineno"> 6548</span>}</div>
+<div class="line"><a id="l06549" name="l06549"></a><span class="lineno"> 6549</span> </div>
+<div class="line"><a id="l06550" name="l06550"></a><span class="lineno"> 6550</span>} <span class="comment">// namespace flow::net_flow</span></div>
 <div class="ttc" id="aasync_2util_8hpp_html"><div class="ttname"><a href="async_2util_8hpp.html">util.hpp</a></div></div>
 <div class="ttc" id="abandwidth_8hpp_html"><div class="ttname"><a href="bandwidth_8hpp.html">bandwidth.hpp</a></div></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Log__context_html_a8a5fef42dc2cedf3c0d1a6e83beb2948"><div class="ttname"><a href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948">flow::log::Log_context::get_log_component</a></div><div class="ttdeci">const Component &amp; get_log_component() const</div><div class="ttdoc">Returns reference to the stored Component object, particularly as many FLOW_LOG_*() macros expect.</div><div class="ttdef"><b>Definition:</b> <a href="log_8cpp_source.html#l00230">log.cpp:230</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Log__context_html_af4db395042b065b00398cd59845dcb4d"><div class="ttname"><a href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">flow::log::Log_context::get_logger</a></div><div class="ttdeci">Logger * get_logger() const</div><div class="ttdoc">Returns the stored Logger pointer, particularly as many FLOW_LOG_*() macros expect.</div><div class="ttdef"><b>Definition:</b> <a href="log_8cpp_source.html#l00225">log.cpp:225</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Logger_html"><div class="ttname"><a href="classflow_1_1log_1_1Logger.html">flow::log::Logger</a></div><div class="ttdoc">Interface that the user should implement, passing the implementing Logger into logging classes (Flow'...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01287">log.hpp:1291</a></div></div>
@@ -6625,101 +6631,101 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Event__set_html_a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02"><div class="ttname"><a href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a5efb94617bcb00507a087224ce7a7d02">flow::net_flow::Event_set::Event_type::S_PEER_SOCKET_WRITABLE</a></div><div class="ttdeci">@ S_PEER_SOCKET_WRITABLE</div><div class="ttdoc">Event type specifying the condition of interest wherein a target Peer_socket sock is such that callin...</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Event__set_html_a19cc3a286c8a11c986d2a59ec1e39a71a7cedcbdde2b86daeb1268c63c6cb6b88"><div class="ttname"><a href="classflow_1_1net__flow_1_1Event__set.html#a19cc3a286c8a11c986d2a59ec1e39a71a7cedcbdde2b86daeb1268c63c6cb6b88">flow::net_flow::Event_set::Event_type::S_PEER_SOCKET_READABLE</a></div><div class="ttdeci">@ S_PEER_SOCKET_READABLE</div><div class="ttdoc">Event type specifying the condition of interest wherein a target Peer_socket sock is such that callin...</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html">flow::net_flow::Node</a></div><div class="ttdoc">An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00933">node.hpp:937</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a00124a034c8fdac6f300900bdfcc8cfe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a00124a034c8fdac6f300900bdfcc8cfe">flow::net_flow::Node::snd_flying_pkts_updated</a></div><div class="ttdeci">void snd_flying_pkts_updated(Peer_socket::Ptr sock, Peer_socket::Sent_pkt_ordered_by_when_const_iter pkt_begin, const Peer_socket::Sent_pkt_ordered_by_when_const_iter &amp;pkt_end, bool added)</div><div class="ttdoc">Updates Peer_socket::m_snd_flying_bytes according to an operation (add packets, remove packets) calle...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03884">peer_socket.cpp:3884</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a055ee380cf87f83c06d7380821c4679e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a055ee380cf87f83c06d7380821c4679e">flow::net_flow::Node::categorize_individual_ack</a></div><div class="ttdeci">bool categorize_individual_ack(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, Ack_packet::Individual_ack::Const_ptr ack, bool *dupe_or_late, Peer_socket::Sent_pkt_ordered_by_when_iter *acked_pkt_it)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that categorizes the given accumulated individual ackno...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02545">peer_socket.cpp:2545</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a00124a034c8fdac6f300900bdfcc8cfe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a00124a034c8fdac6f300900bdfcc8cfe">flow::net_flow::Node::snd_flying_pkts_updated</a></div><div class="ttdeci">void snd_flying_pkts_updated(Peer_socket::Ptr sock, Peer_socket::Sent_pkt_ordered_by_when_const_iter pkt_begin, const Peer_socket::Sent_pkt_ordered_by_when_const_iter &amp;pkt_end, bool added)</div><div class="ttdoc">Updates Peer_socket::m_snd_flying_bytes according to an operation (add packets, remove packets) calle...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03890">peer_socket.cpp:3890</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a055ee380cf87f83c06d7380821c4679e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a055ee380cf87f83c06d7380821c4679e">flow::net_flow::Node::categorize_individual_ack</a></div><div class="ttdeci">bool categorize_individual_ack(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, Ack_packet::Individual_ack::Const_ptr ack, bool *dupe_or_late, Peer_socket::Sent_pkt_ordered_by_when_iter *acked_pkt_it)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that categorizes the given accumulated individual ackno...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02551">peer_socket.cpp:2551</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a06e4cea2eefa1b06975864f09740c96b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a06e4cea2eefa1b06975864f09740c96b">flow::net_flow::Node::handle_data_to_established</a></div><div class="ttdeci">void handle_data_to_established(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, boost::shared_ptr&lt; Data_packet &gt; packet, bool syn_rcvd_qd_packet)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, low-level DATA packet delivered to the given peer so...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00560">peer_socket.cpp:560</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0756fc7301d0cfa66f19e681a9c60c06"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0756fc7301d0cfa66f19e681a9c60c06">flow::net_flow::Node::sock_is_writable</a></div><div class="ttdeci">bool sock_is_writable(const boost::any &amp;sock_as_any) const</div><div class="ttdoc">Returns true if and only if calling sock-&gt;send() with at least some arguments would return either non...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04713">peer_socket.cpp:4713</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a07ad769737db60dd637365010b80f4f3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a07ad769737db60dd637365010b80f4f3">flow::net_flow::Node::sock_info</a></div><div class="ttdeci">Peer_socket_info sock_info(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Implementation of sock-&gt;info() for socket sock in all cases except when sock-&gt;state() == Peer_socket:...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06338">peer_socket.cpp:6338</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a08cf95363b26c0c676979437e34db357"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a08cf95363b26c0c676979437e34db357">flow::net_flow::Node::receive_wnd_updated</a></div><div class="ttdeci">void receive_wnd_updated(Peer_socket::Ptr sock)</div><div class="ttdoc">Placed by receive() onto W if it has dequeued data from Receive buffer and given it to the user,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05263">peer_socket.cpp:5263</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0756fc7301d0cfa66f19e681a9c60c06"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0756fc7301d0cfa66f19e681a9c60c06">flow::net_flow::Node::sock_is_writable</a></div><div class="ttdeci">bool sock_is_writable(const boost::any &amp;sock_as_any) const</div><div class="ttdoc">Returns true if and only if calling sock-&gt;send() with at least some arguments would return either non...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04719">peer_socket.cpp:4719</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a07ad769737db60dd637365010b80f4f3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a07ad769737db60dd637365010b80f4f3">flow::net_flow::Node::sock_info</a></div><div class="ttdeci">Peer_socket_info sock_info(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Implementation of sock-&gt;info() for socket sock in all cases except when sock-&gt;state() == Peer_socket:...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06344">peer_socket.cpp:6344</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a08cf95363b26c0c676979437e34db357"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a08cf95363b26c0c676979437e34db357">flow::net_flow::Node::receive_wnd_updated</a></div><div class="ttdeci">void receive_wnd_updated(Peer_socket::Ptr sock)</div><div class="ttdoc">Placed by receive() onto W if it has dequeued data from Receive buffer and given it to the user,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05269">peer_socket.cpp:5269</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0ea53f6b451895e8efcdc68ba8770a43"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0ea53f6b451895e8efcdc68ba8770a43">flow::net_flow::Node::sock_track_new_data_after_gap_rexmit_off</a></div><div class="ttdeci">void sock_track_new_data_after_gap_rexmit_off(Peer_socket::Ptr sock, boost::shared_ptr&lt; const Data_packet &gt; packet, size_t data_size, bool *slide, size_t *slide_size)</div><div class="ttdoc">Helper for handle_data_to_established() that aims to register the given DATA packet as an out-of-orde...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01244">peer_socket.cpp:1244</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a0f9f88761fc18c4f9e0d5f4dd6b4bc95"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a0f9f88761fc18c4f9e0d5f4dd6b4bc95">flow::net_flow::Node::sock_data_to_reassembly_q_unless_overflow</a></div><div class="ttdeci">bool sock_data_to_reassembly_q_unless_overflow(Peer_socket::Ptr sock, boost::shared_ptr&lt; Data_packet &gt; packet)</div><div class="ttdoc">Helper for handle_data_to_established() that aims to register the given DATA packet as an out-of-orde...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01320">peer_socket.cpp:1320</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a109a118ca312e94686595ea08dac7ad0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a109a118ca312e94686595ea08dac7ad0">flow::net_flow::Node::ensure_sock_open</a></div><div class="ttdeci">static bool ensure_sock_open(Socket_ptr sock, Error_code *err_code)</div><div class="ttdoc">Helper method that checks whether the given Peer_socket or Server_socket is CLOSED; if so,...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l04141">node.hpp:4141</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a10a92f11a2c9f218cdd9a55f282e79b1"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a10a92f11a2c9f218cdd9a55f282e79b1">flow::net_flow::Node::send_worker</a></div><div class="ttdeci">void send_worker(Peer_socket::Ptr sock, bool defer_delta_check)</div><div class="ttdoc">Thread W implemention of send(): synchronously or asynchronously send the contents of sock-&gt;m_snd_buf...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04792">peer_socket.cpp:4792</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a136d9ccd25634cee2955ea79ae829006"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a136d9ccd25634cee2955ea79ae829006">flow::net_flow::Node::handle_accumulated_acks</a></div><div class="ttdeci">void handle_accumulated_acks(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that handles any incoming acknowledgments and rcv_wnd u...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02061">peer_socket.cpp:2061</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a192d4b95b9f8a5c3d08b1e5486eb6f78"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a192d4b95b9f8a5c3d08b1e5486eb6f78">flow::net_flow::Node::async_rcv_wnd_recovery</a></div><div class="ttdeci">void async_rcv_wnd_recovery(Peer_socket::Ptr sock, size_t rcv_wnd)</div><div class="ttdoc">receive_wnd_updated() helper that continues rcv_wnd recovery: that is, sends unsolicited ACK with a r...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05397">peer_socket.cpp:5397</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1bfde94f7d529ea8e6c26b560abfa9c7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1bfde94f7d529ea8e6c26b560abfa9c7">flow::net_flow::Node::log_accumulated_acks</a></div><div class="ttdeci">void log_accumulated_acks(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Helper of handle_accumulated_acks() that logs the about-to-be-handled accumulated individual acknowle...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03266">peer_socket.cpp:3266</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1d5f13062bec6730db533cc1e89bf515"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1d5f13062bec6730db533cc1e89bf515">flow::net_flow::Node::sock_free_memory</a></div><div class="ttdeci">void sock_free_memory(Peer_socket::Ptr sock)</div><div class="ttdoc">Helper that clears all non-O(1)-space data structures stored inside sock.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06168">peer_socket.cpp:6168</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2336fae98b318ab73e7268e9a242bf09"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">flow::net_flow::Node::sock_load_info_struct</a></div><div class="ttdeci">void sock_load_info_struct(Peer_socket::Const_ptr sock, Peer_socket_info *stats) const</div><div class="ttdoc">Given a Peer_socket, copies all stats info (as available via Peer_socket::info()) from various struct...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06382">peer_socket.cpp:6382</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a24785d3e04e0a9cd5daca43bc867e5aa"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a24785d3e04e0a9cd5daca43bc867e5aa">flow::net_flow::Node::log_snd_window</a></div><div class="ttdeci">void log_snd_window(Peer_socket::Const_ptr sock, bool force_verbose_info_logging=false) const</div><div class="ttdoc">Logs TRACE or DATA messages thats show the detailed state of the sending sequence number space.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03635">peer_socket.cpp:3635</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2565b7c0bd82cad86eb168b62f8ffd9d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2565b7c0bd82cad86eb168b62f8ffd9d">flow::net_flow::Node::send_worker_check_state</a></div><div class="ttdeci">void send_worker_check_state(Peer_socket::Ptr sock)</div><div class="ttdoc">Helper placed by send() onto W to invoke send_worker() but ensures that the socket has not entered so...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04747">peer_socket.cpp:4747</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a10a92f11a2c9f218cdd9a55f282e79b1"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a10a92f11a2c9f218cdd9a55f282e79b1">flow::net_flow::Node::send_worker</a></div><div class="ttdeci">void send_worker(Peer_socket::Ptr sock, bool defer_delta_check)</div><div class="ttdoc">Thread W implemention of send(): synchronously or asynchronously send the contents of sock-&gt;m_snd_buf...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04798">peer_socket.cpp:4798</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a136d9ccd25634cee2955ea79ae829006"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a136d9ccd25634cee2955ea79ae829006">flow::net_flow::Node::handle_accumulated_acks</a></div><div class="ttdeci">void handle_accumulated_acks(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that handles any incoming acknowledgments and rcv_wnd u...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02067">peer_socket.cpp:2067</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a192d4b95b9f8a5c3d08b1e5486eb6f78"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a192d4b95b9f8a5c3d08b1e5486eb6f78">flow::net_flow::Node::async_rcv_wnd_recovery</a></div><div class="ttdeci">void async_rcv_wnd_recovery(Peer_socket::Ptr sock, size_t rcv_wnd)</div><div class="ttdoc">receive_wnd_updated() helper that continues rcv_wnd recovery: that is, sends unsolicited ACK with a r...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05403">peer_socket.cpp:5403</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1bfde94f7d529ea8e6c26b560abfa9c7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1bfde94f7d529ea8e6c26b560abfa9c7">flow::net_flow::Node::log_accumulated_acks</a></div><div class="ttdeci">void log_accumulated_acks(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Helper of handle_accumulated_acks() that logs the about-to-be-handled accumulated individual acknowle...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03272">peer_socket.cpp:3272</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a1d5f13062bec6730db533cc1e89bf515"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a1d5f13062bec6730db533cc1e89bf515">flow::net_flow::Node::sock_free_memory</a></div><div class="ttdeci">void sock_free_memory(Peer_socket::Ptr sock)</div><div class="ttdoc">Helper that clears all non-O(1)-space data structures stored inside sock.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06174">peer_socket.cpp:6174</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2336fae98b318ab73e7268e9a242bf09"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2336fae98b318ab73e7268e9a242bf09">flow::net_flow::Node::sock_load_info_struct</a></div><div class="ttdeci">void sock_load_info_struct(Peer_socket::Const_ptr sock, Peer_socket_info *stats) const</div><div class="ttdoc">Given a Peer_socket, copies all stats info (as available via Peer_socket::info()) from various struct...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06388">peer_socket.cpp:6388</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a24785d3e04e0a9cd5daca43bc867e5aa"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a24785d3e04e0a9cd5daca43bc867e5aa">flow::net_flow::Node::log_snd_window</a></div><div class="ttdeci">void log_snd_window(Peer_socket::Const_ptr sock, bool force_verbose_info_logging=false) const</div><div class="ttdoc">Logs TRACE or DATA messages thats show the detailed state of the sending sequence number space.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03641">peer_socket.cpp:3641</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2565b7c0bd82cad86eb168b62f8ffd9d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2565b7c0bd82cad86eb168b62f8ffd9d">flow::net_flow::Node::send_worker_check_state</a></div><div class="ttdeci">void send_worker_check_state(Peer_socket::Ptr sock)</div><div class="ttdoc">Helper placed by send() onto W to invoke send_worker() but ensures that the socket has not entered so...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04753">peer_socket.cpp:4753</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a266ec5d00a44bc48caf37444eb2b43a1"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a266ec5d00a44bc48caf37444eb2b43a1">flow::net_flow::Node::m_low_lvl_max_buf_size</a></div><div class="ttdeci">size_t m_low_lvl_max_buf_size</div><div class="ttdoc">OS-reported m_low_lvl_sock UDP receive buffer maximum size, obtained right after we OS-set that setti...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03771">node.hpp:3771</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a2a4dc3d8e294bbc8423e111f52e414ae"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a2a4dc3d8e294bbc8423e111f52e414ae">flow::net_flow::Node::sync_op</a></div><div class="ttdeci">Non_blocking_func_ret_type sync_op(typename Socket::Ptr sock, const Function&lt; Non_blocking_func_ret_type()&gt; &amp;non_blocking_func, Non_blocking_func_ret_type would_block_ret_val, Event_set::Event_type ev_type, const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">Implementation of core blocking transfer methods, namely Peer_socket::sync_send(),...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03977">node.hpp:3977</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a31d9838b735786bfed40fc1c437808d7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a31d9838b735786bfed40fc1c437808d7">flow::net_flow::Node::sock_max_packets_after_unrecvd_packet</a></div><div class="ttdeci">size_t sock_max_packets_after_unrecvd_packet(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Computes and returns the max size for Peer_socket::m_rcv_packets_with_gaps for sock.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01556">peer_socket.cpp:1556</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3326b5bdc85b43232f55e2b2ec1dbe60"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3326b5bdc85b43232f55e2b2ec1dbe60">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks</a></div><div class="ttdeci">Peer_socket::Sent_pkt_ordered_by_when_iter categorize_pkts_as_dropped_on_acks(Peer_socket::Ptr sock, const boost::unordered_set&lt; Peer_socket::order_num_t &gt; &amp;flying_now_acked_pkts)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that determines the range of In-flight packets that sho...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02936">peer_socket.cpp:2936</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3326b5bdc85b43232f55e2b2ec1dbe60"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3326b5bdc85b43232f55e2b2ec1dbe60">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks</a></div><div class="ttdeci">Peer_socket::Sent_pkt_ordered_by_when_iter categorize_pkts_as_dropped_on_acks(Peer_socket::Ptr sock, const boost::unordered_set&lt; Peer_socket::order_num_t &gt; &amp;flying_now_acked_pkts)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that determines the range of In-flight packets that sho...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02942">peer_socket.cpp:2942</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3574d50742fa0b1230c049f4b29fd3dc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3574d50742fa0b1230c049f4b29fd3dc">flow::net_flow::Node::rcv_get_first_gap_info</a></div><div class="ttdeci">void rcv_get_first_gap_info(Peer_socket::Const_ptr sock, bool *first_gap_exists, Sequence_number *seq_num_after_first_gap)</div><div class="ttdoc">Helper for handle_data_to_established() that gets simple info about Peer_socket::m_rcv_packets_with_g...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01569">peer_socket.cpp:1569</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a382b607fa2e482886f2fd75edc36b8b7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">flow::net_flow::Node::snd_deqable</a></div><div class="ttdeci">bool snd_deqable(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Return true if and only if there are enough data either in Peer_socket::m_snd_rexmit_q of sock (if re...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06074">peer_socket.cpp:6074</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3f9cf4d7160b3e27b3b0131fc4507ce7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3f9cf4d7160b3e27b3b0131fc4507ce7">flow::net_flow::Node::cancel_timers</a></div><div class="ttdeci">void cancel_timers(Peer_socket::Ptr sock)</div><div class="ttdoc">Cancel any timers and scheduled tasks active in the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04447">peer_socket.cpp:4447</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a382b607fa2e482886f2fd75edc36b8b7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a382b607fa2e482886f2fd75edc36b8b7">flow::net_flow::Node::snd_deqable</a></div><div class="ttdeci">bool snd_deqable(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Return true if and only if there are enough data either in Peer_socket::m_snd_rexmit_q of sock (if re...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06080">peer_socket.cpp:6080</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3f9cf4d7160b3e27b3b0131fc4507ce7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3f9cf4d7160b3e27b3b0131fc4507ce7">flow::net_flow::Node::cancel_timers</a></div><div class="ttdeci">void cancel_timers(Peer_socket::Ptr sock)</div><div class="ttdoc">Cancel any timers and scheduled tasks active in the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04453">peer_socket.cpp:4453</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a40595ee69bfb87fd64005bc8443329dc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a40595ee69bfb87fd64005bc8443329dc">flow::net_flow::Node::sock_rcv_buf_now_readable</a></div><div class="ttdeci">void sock_rcv_buf_now_readable(Peer_socket::Ptr sock, bool syn_rcvd_qd_packet)</div><div class="ttdoc">Helper for handle_data_to_established() that assumes the given's socket Receive buffer is currently r...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01210">peer_socket.cpp:1210</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a43af576c6156f5d69682e664d9ff3922"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a43af576c6156f5d69682e664d9ff3922">flow::net_flow::Node::snd_flying_pkts_erase_one</a></div><div class="ttdeci">void snd_flying_pkts_erase_one(Peer_socket::Ptr sock, Peer_socket::Sent_pkt_ordered_by_when_iter pkt_it)</div><div class="ttdoc">Erases (for example if considered Acknowledged or Dropped) a packet struct from the &quot;scoreboard&quot; (Pee...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03781">peer_socket.cpp:3781</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a43af576c6156f5d69682e664d9ff3922"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a43af576c6156f5d69682e664d9ff3922">flow::net_flow::Node::snd_flying_pkts_erase_one</a></div><div class="ttdeci">void snd_flying_pkts_erase_one(Peer_socket::Ptr sock, Peer_socket::Sent_pkt_ordered_by_when_iter pkt_it)</div><div class="ttdoc">Erases (for example if considered Acknowledged or Dropped) a packet struct from the &quot;scoreboard&quot; (Pee...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03787">peer_socket.cpp:3787</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a43c42121d48a55a43a48e3a84bd10595"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a43c42121d48a55a43a48e3a84bd10595">flow::net_flow::Node::opt</a></div><div class="ttdeci">Opt_type opt(const Opt_type &amp;opt_val_ref) const</div><div class="ttdoc">Obtain a copy of the value of a given option in a thread-safe manner.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l04180">node.hpp:4180</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a446ee7115c70cbcd48e3897d32fc0276"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276">flow::net_flow::Node::sock_validate_options</a></div><div class="ttdeci">bool sock_validate_options(const Peer_socket_options &amp;opts, const Peer_socket_options *prev_opts, Error_code *err_code) const</div><div class="ttdoc">Analogous to validate_options() but checks per-socket options instead of per-Node options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06239">peer_socket.cpp:6239</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a45583714bc147300158f074ecacce0fd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a45583714bc147300158f074ecacce0fd">flow::net_flow::Node::handle_accumulated_pending_acks</a></div><div class="ttdeci">void handle_accumulated_pending_acks(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that handles any additional individual outgoing acknowl...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01638">peer_socket.cpp:1638</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a45b05340098b0eb66f88a6a7e5f3d36f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a45b05340098b0eb66f88a6a7e5f3d36f">flow::net_flow::Node::receive_wnd_recovery_data_received</a></div><div class="ttdeci">void receive_wnd_recovery_data_received(Peer_socket::Ptr sock)</div><div class="ttdoc">Pertaining to the async_rcv_wnd_recovery() mechanism, this handles the event that we have received an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05485">peer_socket.cpp:5485</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a479dfcb7944cb6571af51f1feed2656d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a479dfcb7944cb6571af51f1feed2656d">flow::net_flow::Node::sock_get_new_snd_order_num</a></div><div class="ttdeci">static Peer_socket::order_num_t sock_get_new_snd_order_num(Peer_socket::Ptr sock)</div><div class="ttdoc">Returns the &quot;order number&quot; to use for Peer_socket::Sent_packet::Sent_when structure corresponding to ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06494">peer_socket.cpp:6494</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a49e2786f5d1eeb068a828902a631a39a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a49e2786f5d1eeb068a828902a631a39a">flow::net_flow::Node::sync_connect_impl</a></div><div class="ttdeci">Peer_socket::Ptr sync_connect_impl(const Remote_endpoint &amp;to, const Fine_duration &amp;max_wait, const boost::asio::const_buffer &amp;serialized_metadata, Error_code *err_code, const Peer_socket_options *opts)</div><div class="ttdoc">Implementation core of sync_connect*() that gets rid of templated or missing arguments thereof.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04206">peer_socket.cpp:4206</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a446ee7115c70cbcd48e3897d32fc0276"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276">flow::net_flow::Node::sock_validate_options</a></div><div class="ttdeci">bool sock_validate_options(const Peer_socket_options &amp;opts, const Peer_socket_options *prev_opts, Error_code *err_code) const</div><div class="ttdoc">Analogous to validate_options() but checks per-socket options instead of per-Node options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06245">peer_socket.cpp:6245</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a45583714bc147300158f074ecacce0fd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a45583714bc147300158f074ecacce0fd">flow::net_flow::Node::handle_accumulated_pending_acks</a></div><div class="ttdeci">void handle_accumulated_pending_acks(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that handles any additional individual outgoing acknowl...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01644">peer_socket.cpp:1644</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a45b05340098b0eb66f88a6a7e5f3d36f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a45b05340098b0eb66f88a6a7e5f3d36f">flow::net_flow::Node::receive_wnd_recovery_data_received</a></div><div class="ttdeci">void receive_wnd_recovery_data_received(Peer_socket::Ptr sock)</div><div class="ttdoc">Pertaining to the async_rcv_wnd_recovery() mechanism, this handles the event that we have received an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05491">peer_socket.cpp:5491</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a479dfcb7944cb6571af51f1feed2656d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a479dfcb7944cb6571af51f1feed2656d">flow::net_flow::Node::sock_get_new_snd_order_num</a></div><div class="ttdeci">static Peer_socket::order_num_t sock_get_new_snd_order_num(Peer_socket::Ptr sock)</div><div class="ttdoc">Returns the &quot;order number&quot; to use for Peer_socket::Sent_packet::Sent_when structure corresponding to ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06500">peer_socket.cpp:6500</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a49e2786f5d1eeb068a828902a631a39a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a49e2786f5d1eeb068a828902a631a39a">flow::net_flow::Node::sync_connect_impl</a></div><div class="ttdeci">Peer_socket::Ptr sync_connect_impl(const Remote_endpoint &amp;to, const Fine_duration &amp;max_wait, const boost::asio::const_buffer &amp;serialized_metadata, Error_code *err_code, const Peer_socket_options *opts)</div><div class="ttdoc">Implementation core of sync_connect*() that gets rid of templated or missing arguments thereof.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04212">peer_socket.cpp:4212</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a4bd7b471dd6cd3e3570930b48d30e577"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a4bd7b471dd6cd3e3570930b48d30e577">flow::net_flow::Node::max_block_size</a></div><div class="ttdeci">size_t max_block_size() const</div><div class="ttdoc">The maximum number of bytes of user data per received or sent block on connections generated from thi...</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l01112">node.cpp:1112</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a52a3e10ef08b93daf87ea5f0f1e87062"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a52a3e10ef08b93daf87ea5f0f1e87062">flow::net_flow::Node::snd_flying_pkts_push_one</a></div><div class="ttdeci">void snd_flying_pkts_push_one(Peer_socket::Ptr sock, const Sequence_number &amp;seq_num, Peer_socket::Sent_packet::Ptr sent_pkt)</div><div class="ttdoc">Adds a new packet struct (presumably representing packet to be sent shortly) to the &quot;scoreboard&quot; (Pee...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03818">peer_socket.cpp:3818</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a5bca5c11ac5a4763fed6ce146fe733e7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a5bca5c11ac5a4763fed6ce146fe733e7">flow::net_flow::Node::create_syn</a></div><div class="ttdeci">Syn_packet::Ptr create_syn(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Helper that creates a new SYN packet object to the extent that is suitable for immediately passing to...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05811">peer_socket.cpp:5811</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6461124e5bc3e59083e172e26029e632"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6461124e5bc3e59083e172e26029e632">flow::net_flow::Node::close_abruptly</a></div><div class="ttdeci">void close_abruptly(Peer_socket::Ptr sock, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking sock-&gt;close_abruptly() for socket sock in all cases except when sock-&gt;...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05615">peer_socket.cpp:5615</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a663f1fd8b524ffe63dfa6b7ca76b1a43"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a663f1fd8b524ffe63dfa6b7ca76b1a43">flow::net_flow::Node::get_seq_num_range</a></div><div class="ttdeci">static void get_seq_num_range(const Packet_map_iter &amp;packet_it, Sequence_number *seq_num_start, Sequence_number *seq_num_end)</div><div class="ttdoc">Given an iterator into a Peer_socket::Sent_pkt_by_sent_when_map or Peer_socket::Recv_pkt_map,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06479">peer_socket.cpp:6479</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a52a3e10ef08b93daf87ea5f0f1e87062"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a52a3e10ef08b93daf87ea5f0f1e87062">flow::net_flow::Node::snd_flying_pkts_push_one</a></div><div class="ttdeci">void snd_flying_pkts_push_one(Peer_socket::Ptr sock, const Sequence_number &amp;seq_num, Peer_socket::Sent_packet::Ptr sent_pkt)</div><div class="ttdoc">Adds a new packet struct (presumably representing packet to be sent shortly) to the &quot;scoreboard&quot; (Pee...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03824">peer_socket.cpp:3824</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a5bca5c11ac5a4763fed6ce146fe733e7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a5bca5c11ac5a4763fed6ce146fe733e7">flow::net_flow::Node::create_syn</a></div><div class="ttdeci">Syn_packet::Ptr create_syn(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Helper that creates a new SYN packet object to the extent that is suitable for immediately passing to...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05817">peer_socket.cpp:5817</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6461124e5bc3e59083e172e26029e632"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6461124e5bc3e59083e172e26029e632">flow::net_flow::Node::close_abruptly</a></div><div class="ttdeci">void close_abruptly(Peer_socket::Ptr sock, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking sock-&gt;close_abruptly() for socket sock in all cases except when sock-&gt;...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05621">peer_socket.cpp:5621</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a663f1fd8b524ffe63dfa6b7ca76b1a43"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a663f1fd8b524ffe63dfa6b7ca76b1a43">flow::net_flow::Node::get_seq_num_range</a></div><div class="ttdeci">static void get_seq_num_range(const Packet_map_iter &amp;packet_it, Sequence_number *seq_num_start, Sequence_number *seq_num_end)</div><div class="ttdoc">Given an iterator into a Peer_socket::Sent_pkt_by_sent_when_map or Peer_socket::Recv_pkt_map,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06485">peer_socket.cpp:6485</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6725d69ea1a6457d88abb63cef6e6bb2"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6725d69ea1a6457d88abb63cef6e6bb2">flow::net_flow::Node::sync_connect_with_metadata</a></div><div class="ttdeci">Peer_socket::Ptr sync_connect_with_metadata(const Remote_endpoint &amp;to, const boost::chrono::duration&lt; Rep, Period &gt; &amp;max_wait, const boost::asio::const_buffer &amp;serialized_metadata, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">A combination of sync_connect() and connect_with_metadata() (blocking connect, with supplied metadata...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03956">node.hpp:3956</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6bcd840049c57150cdaa5c59d22c488b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6bcd840049c57150cdaa5c59d22c488b">flow::net_flow::Node::create_syn_ack</a></div><div class="ttdeci">Syn_ack_packet::Ptr create_syn_ack(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Like create_syn() but for SYN_ACK.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05826">peer_socket.cpp:5826</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6daaa6a5a7d0b7e5a2266dd9db400c01"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6daaa6a5a7d0b7e5a2266dd9db400c01">flow::net_flow::Node::sock_create</a></div><div class="ttdeci">virtual Peer_socket * sock_create(const Peer_socket_options &amp;opts)</div><div class="ttdoc">Internal factory used for ALL Peer_socket objects created by this Node (including subclasses).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06500">peer_socket.cpp:6500</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a70d124ba678e2ab72f8c6d28140ca137"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a70d124ba678e2ab72f8c6d28140ca137">flow::net_flow::Node::snd_buf_enqable</a></div><div class="ttdeci">bool snd_buf_enqable(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Return true if and only if there is enough free space in Peer_socket::m_snd_buf of sock to enqueue an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06080">peer_socket.cpp:6080</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a7395ac534047f06629962ad19b3fa657"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657">flow::net_flow::Node::can_send</a></div><div class="ttdeci">bool can_send(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Answers the perennial question of congestion and flow control: assuming there is a DATA packet to sen...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05039">peer_socket.cpp:5039</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6bcd840049c57150cdaa5c59d22c488b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6bcd840049c57150cdaa5c59d22c488b">flow::net_flow::Node::create_syn_ack</a></div><div class="ttdeci">Syn_ack_packet::Ptr create_syn_ack(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Like create_syn() but for SYN_ACK.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05832">peer_socket.cpp:5832</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6daaa6a5a7d0b7e5a2266dd9db400c01"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6daaa6a5a7d0b7e5a2266dd9db400c01">flow::net_flow::Node::sock_create</a></div><div class="ttdeci">virtual Peer_socket * sock_create(const Peer_socket_options &amp;opts)</div><div class="ttdoc">Internal factory used for ALL Peer_socket objects created by this Node (including subclasses).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06506">peer_socket.cpp:6506</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a70d124ba678e2ab72f8c6d28140ca137"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a70d124ba678e2ab72f8c6d28140ca137">flow::net_flow::Node::snd_buf_enqable</a></div><div class="ttdeci">bool snd_buf_enqable(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Return true if and only if there is enough free space in Peer_socket::m_snd_buf of sock to enqueue an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06086">peer_socket.cpp:6086</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a7395ac534047f06629962ad19b3fa657"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a7395ac534047f06629962ad19b3fa657">flow::net_flow::Node::can_send</a></div><div class="ttdeci">bool can_send(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Answers the perennial question of congestion and flow control: assuming there is a DATA packet to sen...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05045">peer_socket.cpp:5045</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a74adc7d61419f4beb7941d418a31a648"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a74adc7d61419f4beb7941d418a31a648">flow::net_flow::Node::sock_slide_rcv_next_seq_num</a></div><div class="ttdeci">void sock_slide_rcv_next_seq_num(Peer_socket::Ptr sock, size_t slide_size, bool reassembly_in_progress)</div><div class="ttdoc">Helper for handle_data_to_established() that aims to register a set of received DATA packet data as i...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01471">peer_socket.cpp:1471</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a755c329b9e0f2b8edb2e5b900bd2a337"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a755c329b9e0f2b8edb2e5b900bd2a337">flow::net_flow::Node::sock_log_detail</a></div><div class="ttdeci">void sock_log_detail(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Logs a verbose state report for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06435">peer_socket.cpp:6435</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a80d58cfa8fad00a116a38f76ccb2b868"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">flow::net_flow::Node::advance_seq_num</a></div><div class="ttdeci">static void advance_seq_num(Sequence_number *seq_num, boost::shared_ptr&lt; const Data_packet &gt; data)</div><div class="ttdoc">Assuming *seq_num points to the start of data.m_data, increments *seq_num to point to the datum just ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06456">peer_socket.cpp:6456</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a81e50276d0b162f6577adc690e0ef9e0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a81e50276d0b162f6577adc690e0ef9e0">flow::net_flow::Node::async_low_lvl_ack_send</a></div><div class="ttdeci">void async_low_lvl_ack_send(Peer_socket::Ptr sock, bool defer_delta_check, const Error_code &amp;sys_err_code=Error_code())</div><div class="ttdoc">Sends a low-level ACK packet, with all accumulated in Peer_socket::m_rcv_pending_acks of sock individ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05857">peer_socket.cpp:5857</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a837d37e6eb06fb6df4666bac327d20f8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a837d37e6eb06fb6df4666bac327d20f8">flow::net_flow::Node::snd_past_last_flying_datum_seq_num</a></div><div class="ttdeci">static Sequence_number snd_past_last_flying_datum_seq_num(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Obtain the sequence number for the datum just past the last (latest) In-flight (i....</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03760">peer_socket.cpp:3760</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a893c8393930110e2aa0823583e37cabd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a893c8393930110e2aa0823583e37cabd">flow::net_flow::Node::connect</a></div><div class="ttdeci">Peer_socket::Ptr connect(const Remote_endpoint &amp;to, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">Initiates an active connect to the specified remote Flow server.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03944">peer_socket.cpp:3944</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a755c329b9e0f2b8edb2e5b900bd2a337"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a755c329b9e0f2b8edb2e5b900bd2a337">flow::net_flow::Node::sock_log_detail</a></div><div class="ttdeci">void sock_log_detail(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Logs a verbose state report for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06441">peer_socket.cpp:6441</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a80d58cfa8fad00a116a38f76ccb2b868"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a80d58cfa8fad00a116a38f76ccb2b868">flow::net_flow::Node::advance_seq_num</a></div><div class="ttdeci">static void advance_seq_num(Sequence_number *seq_num, boost::shared_ptr&lt; const Data_packet &gt; data)</div><div class="ttdoc">Assuming *seq_num points to the start of data.m_data, increments *seq_num to point to the datum just ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06462">peer_socket.cpp:6462</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a81e50276d0b162f6577adc690e0ef9e0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a81e50276d0b162f6577adc690e0ef9e0">flow::net_flow::Node::async_low_lvl_ack_send</a></div><div class="ttdeci">void async_low_lvl_ack_send(Peer_socket::Ptr sock, bool defer_delta_check, const Error_code &amp;sys_err_code=Error_code())</div><div class="ttdoc">Sends a low-level ACK packet, with all accumulated in Peer_socket::m_rcv_pending_acks of sock individ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05863">peer_socket.cpp:5863</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a837d37e6eb06fb6df4666bac327d20f8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a837d37e6eb06fb6df4666bac327d20f8">flow::net_flow::Node::snd_past_last_flying_datum_seq_num</a></div><div class="ttdeci">static Sequence_number snd_past_last_flying_datum_seq_num(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Obtain the sequence number for the datum just past the last (latest) In-flight (i....</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03766">peer_socket.cpp:3766</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a893c8393930110e2aa0823583e37cabd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a893c8393930110e2aa0823583e37cabd">flow::net_flow::Node::connect</a></div><div class="ttdeci">Peer_socket::Ptr connect(const Remote_endpoint &amp;to, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">Initiates an active connect to the specified remote Flow server.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03950">peer_socket.cpp:3950</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8a4ddf81ddbeab1f740940c4cc0d3625"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8a4ddf81ddbeab1f740940c4cc0d3625">flow::net_flow::Node::event_set_all_check_delta</a></div><div class="ttdeci">void event_set_all_check_delta(bool defer_delta_check)</div><div class="ttdoc">For each WAITING Event_set within the Node: checks for any events that hold, and if any do hold,...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01129">event_set.cpp:1129</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8a6c02bf520a16df4028bd3c88732a8d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8a6c02bf520a16df4028bd3c88732a8d">flow::net_flow::Node::serv_peer_socket_closed</a></div><div class="ttdeci">void serv_peer_socket_closed(Server_socket::Ptr serv, Peer_socket::Ptr sock)</div><div class="ttdoc">Records that a Server_socket-contained (i.e., currently un-established, or established but not yet ac...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00786">server_socket.cpp:786</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8cae2884eaf67d77c9f8cf56b31e4c4b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8cae2884eaf67d77c9f8cf56b31e4c4b">flow::net_flow::Node::rcv_buf_deqable</a></div><div class="ttdeci">bool rcv_buf_deqable(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Return true if and only if there are enough data in Peer_socket::m_rcv_buf of sock to give the user s...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06097">peer_socket.cpp:6097</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8cae2884eaf67d77c9f8cf56b31e4c4b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8cae2884eaf67d77c9f8cf56b31e4c4b">flow::net_flow::Node::rcv_buf_deqable</a></div><div class="ttdeci">bool rcv_buf_deqable(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Return true if and only if there are enough data in Peer_socket::m_rcv_buf of sock to give the user s...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06103">peer_socket.cpp:6103</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8ece1750c8f0bee297af113f8808b7a6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8ece1750c8f0bee297af113f8808b7a6">flow::net_flow::Node::async_acknowledge_packet</a></div><div class="ttdeci">void async_acknowledge_packet(Peer_socket::Ptr sock, const Sequence_number &amp;seq_num, unsigned int rexmit_id, size_t data_size)</div><div class="ttdoc">Causes an acknowledgment of the given received packet to be included in a future Ack_packet sent to t...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01581">peer_socket.cpp:1581</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a90244d69d550370158bbe843ab595a7a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a90244d69d550370158bbe843ab595a7a">flow::net_flow::Node::m_socks</a></div><div class="ttdeci">Socket_id_to_socket_map m_socks</div><div class="ttdoc">The peer-to-peer connections this Node is currently tracking.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03792">node.hpp:3792</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a97c8679c70ac9c7dda394fdf335aaed7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a97c8679c70ac9c7dda394fdf335aaed7">flow::net_flow::Node::Options_lock</a></div><div class="ttdeci">Peer_socket::Options_lock Options_lock</div><div class="ttdoc">Short-hand for lock that acquires exclusive access to an Options_mutex.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01439">node.hpp:1439</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a99836ffb51eaefa4d2cc21770461cd97"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">flow::net_flow::Node::socket_id</a></div><div class="ttdeci">static Socket_id socket_id(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Constructs the socket pair (connection ID) for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06068">peer_socket.cpp:6068</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a99836ffb51eaefa4d2cc21770461cd97"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">flow::net_flow::Node::socket_id</a></div><div class="ttdeci">static Socket_id socket_id(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Constructs the socket pair (connection ID) for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06074">peer_socket.cpp:6074</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa0f9ebea458490c37a38760c8335506c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa0f9ebea458490c37a38760c8335506c">flow::net_flow::Node::handle_syn_ack_to_syn_sent</a></div><div class="ttdeci">void handle_syn_ack_to_syn_sent(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, boost::shared_ptr&lt; const Syn_ack_packet &gt; syn_ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed low-level SYN_ACK packet delivered to the given peer ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00474">peer_socket.cpp:474</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa19d1f49638ef8ce8883e7477a06d3fc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa19d1f49638ef8ce8883e7477a06d3fc">flow::net_flow::Node::send</a></div><div class="ttdeci">size_t send(Peer_socket::Ptr sock, const Function&lt; size_t(size_t max_data_size)&gt; &amp;snd_buf_feed_func, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking sock-&gt;send() for socket sock in all cases except when sock-&gt;state() ==...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04520">peer_socket.cpp:4520</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa1d9656e9e1480021c87530ec6dbebbe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa1d9656e9e1480021c87530ec6dbebbe">flow::net_flow::Node::sock_set_int_state</a></div><div class="ttdeci">void sock_set_int_state(Peer_socket::Ptr sock, Peer_socket::Int_state new_state)</div><div class="ttdoc">Sets internal state of given socket to the given state and logs a TRACE message about it.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06103">peer_socket.cpp:6103</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa44feae2c97b4bc1fe1f14f83e932d84"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa44feae2c97b4bc1fe1f14f83e932d84">flow::net_flow::Node::sock_is_readable</a></div><div class="ttdeci">bool sock_is_readable(const boost::any &amp;sock_as_any) const</div><div class="ttdoc">Returns true if and only if calling sock-&gt;receive() with at least some arguments would return either ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05233">peer_socket.cpp:5233</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa19d1f49638ef8ce8883e7477a06d3fc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa19d1f49638ef8ce8883e7477a06d3fc">flow::net_flow::Node::send</a></div><div class="ttdeci">size_t send(Peer_socket::Ptr sock, const Function&lt; size_t(size_t max_data_size)&gt; &amp;snd_buf_feed_func, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking sock-&gt;send() for socket sock in all cases except when sock-&gt;state() ==...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04526">peer_socket.cpp:4526</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa1d9656e9e1480021c87530ec6dbebbe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa1d9656e9e1480021c87530ec6dbebbe">flow::net_flow::Node::sock_set_int_state</a></div><div class="ttdeci">void sock_set_int_state(Peer_socket::Ptr sock, Peer_socket::Int_state new_state)</div><div class="ttdoc">Sets internal state of given socket to the given state and logs a TRACE message about it.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06109">peer_socket.cpp:6109</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa44feae2c97b4bc1fe1f14f83e932d84"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa44feae2c97b4bc1fe1f14f83e932d84">flow::net_flow::Node::sock_is_readable</a></div><div class="ttdeci">bool sock_is_readable(const boost::any &amp;sock_as_any) const</div><div class="ttdoc">Returns true if and only if calling sock-&gt;receive() with at least some arguments would return either ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05239">peer_socket.cpp:5239</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa5f7c019665d9dd91af0ad6431f8f97d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa5f7c019665d9dd91af0ad6431f8f97d">flow::net_flow::Node::async_sock_low_lvl_packet_send_or_close_immediately</a></div><div class="ttdeci">bool async_sock_low_lvl_packet_send_or_close_immediately(const Peer_socket::Ptr &amp;sock, Low_lvl_packet::Ptr &amp;&amp;packet, bool defer_delta_check)</div><div class="ttdoc">Similar to async_sock_low_lvl_packet_send_paced() except it also calls close_connection_immediately(s...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l01019">low_lvl_io.cpp:1019</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aab414ebd0e2d27f02ed51270dab90c45"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aab414ebd0e2d27f02ed51270dab90c45">flow::net_flow::Node::sock_data_to_rcv_buf_unless_overflow</a></div><div class="ttdeci">bool sock_data_to_rcv_buf_unless_overflow(Peer_socket::Ptr sock, boost::shared_ptr&lt; Data_packet &gt; packet)</div><div class="ttdoc">Helper for handle_data_to_established() that aims to pass the payload of the given DATA packet to the...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01133">peer_socket.cpp:1133</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aadea4a9941c6138d9c025401b1f85ceb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aadea4a9941c6138d9c025401b1f85ceb">flow::net_flow::Node::sock_set_options</a></div><div class="ttdeci">bool sock_set_options(Peer_socket::Ptr sock, const Peer_socket_options &amp;opts, Error_code *err_code)</div><div class="ttdoc">Thread W implementation of sock-&gt;set_options().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06191">peer_socket.cpp:6191</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aadea4a9941c6138d9c025401b1f85ceb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aadea4a9941c6138d9c025401b1f85ceb">flow::net_flow::Node::sock_set_options</a></div><div class="ttdeci">bool sock_set_options(Peer_socket::Ptr sock, const Peer_socket_options &amp;opts, Error_code *err_code)</div><div class="ttdoc">Thread W implementation of sock-&gt;set_options().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06197">peer_socket.cpp:6197</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aae148cec361b59237996a4b30c6624b5"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">flow::net_flow::Node::running</a></div><div class="ttdeci">bool running() const</div><div class="ttdoc">Returns true if and only if the Node is operating.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00420">node.cpp:420</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aae28990628a86a07327f49973f2390df"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aae28990628a86a07327f49973f2390df">flow::net_flow::Node::m_servs</a></div><div class="ttdeci">Port_to_server_map m_servs</div><div class="ttdoc">The server sockets this Node is currently tracking.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03798">node.hpp:3798</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab0026feecdb74eda904d00d2c7016bab"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab0026feecdb74eda904d00d2c7016bab">flow::net_flow::Node::m_sock_events</a></div><div class="ttdeci">Event_set::Ev_type_to_socks_map m_sock_events</div><div class="ttdoc">All sockets that have been detected to be &quot;ready&quot; (by the Event_set doc header definition) at any poi...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03830">node.hpp:3830</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab13749ccdf4ab44445f21c77296ffa13"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab13749ccdf4ab44445f21c77296ffa13">flow::net_flow::Node::S_DEFAULT_CONN_METADATA</a></div><div class="ttdeci">static const uint8_t S_DEFAULT_CONN_METADATA</div><div class="ttdoc">Type and value to supply as user-supplied metadata in SYN, if user chooses to use [[a]sync_]connect()...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01403">node.hpp:1403</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab427ebc124a6233ae48a7562662a6e81"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab427ebc124a6233ae48a7562662a6e81">flow::net_flow::Node::setup_drop_timer</a></div><div class="ttdeci">void setup_drop_timer(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Creates a new Drop Timer and saves it to sock-&gt;m_snd_drop_timer.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04498">peer_socket.cpp:4498</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab515b28350c43635728d6de0e37ccb94"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab515b28350c43635728d6de0e37ccb94">flow::net_flow::Node::handle_ack_to_established</a></div><div class="ttdeci">void handle_ack_to_established(Peer_socket::Ptr sock, boost::shared_ptr&lt; const Ack_packet &gt; ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, low-level ACK packet delivered to the given peer soc...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01990">peer_socket.cpp:1990</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab427ebc124a6233ae48a7562662a6e81"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab427ebc124a6233ae48a7562662a6e81">flow::net_flow::Node::setup_drop_timer</a></div><div class="ttdeci">void setup_drop_timer(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Creates a new Drop Timer and saves it to sock-&gt;m_snd_drop_timer.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04504">peer_socket.cpp:4504</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab515b28350c43635728d6de0e37ccb94"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab515b28350c43635728d6de0e37ccb94">flow::net_flow::Node::handle_ack_to_established</a></div><div class="ttdeci">void handle_ack_to_established(Peer_socket::Ptr sock, boost::shared_ptr&lt; const Ack_packet &gt; ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, low-level ACK packet delivered to the given peer soc...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01996">peer_socket.cpp:1996</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aba2e6fc905dbeef3ea9e31bf844f8da5"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aba2e6fc905dbeef3ea9e31bf844f8da5">flow::net_flow::Node::sync_connect</a></div><div class="ttdeci">Peer_socket::Ptr sync_connect(const Remote_endpoint &amp;to, const boost::chrono::duration&lt; Rep, Period &gt; &amp;max_wait, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">The blocking (synchronous) version of connect().</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03967">node.hpp:3967</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_abb3d760b3c880b41e5a4ee7f2c13fd81"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#abb3d760b3c880b41e5a4ee7f2c13fd81">flow::net_flow::Node::handle_syn_ack_to_established</a></div><div class="ttdeci">void handle_syn_ack_to_established(Peer_socket::Ptr sock, boost::shared_ptr&lt; const Syn_ack_packet &gt; syn_ack)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, duplicate (equal to already-received SYN_ACK) low-le...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00539">peer_socket.cpp:539</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac1485c07049d4bee70ad4ef2fc07bf12"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac1485c07049d4bee70ad4ef2fc07bf12">flow::net_flow::Node::setup_connection_timers</a></div><div class="ttdeci">void setup_connection_timers(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, bool initial)</div><div class="ttdoc">Assuming we've just sent SYN or SYN_ACK, sets up an asynchronous scheduled task to fire within some a...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04323">peer_socket.cpp:4323</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac2fdb686165aae42f474cc655fca80c0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac2fdb686165aae42f474cc655fca80c0">flow::net_flow::Node::log_rcv_window</a></div><div class="ttdeci">void log_rcv_window(Peer_socket::Const_ptr sock, bool force_verbose_info_logging=false) const</div><div class="ttdoc">Logs TRACE or DATA messages that show the detailed state of the receiving sequence number space.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01904">peer_socket.cpp:1904</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac397d3fd163f1456b7bb370a3cff951c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">flow::net_flow::Node::sock_rcv_wnd</a></div><div class="ttdeci">size_t sock_rcv_wnd(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Computes and returns the currently correct rcv_wnd value; that is the amount of space free in Receive...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05518">peer_socket.cpp:5518</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac619d1a96cc62d223f990ee6a3c909ff"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac619d1a96cc62d223f990ee6a3c909ff">flow::net_flow::Node::connect_worker</a></div><div class="ttdeci">void connect_worker(const Remote_endpoint &amp;to, const boost::asio::const_buffer &amp;serialized_metadata, const Peer_socket_options *opts, Peer_socket::Ptr *sock)</div><div class="ttdoc">Thread W implementation of connect().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04005">peer_socket.cpp:4005</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac910f24e5a176c4aa01992b08b62146a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac910f24e5a176c4aa01992b08b62146a">flow::net_flow::Node::drop_pkts_on_acks</a></div><div class="ttdeci">bool drop_pkts_on_acks(Peer_socket::Ptr sock, const Peer_socket::Sent_pkt_ordered_by_when_iter &amp;last_dropped_pkt_it, size_t *cong_ctl_dropped_pkts, size_t *cong_ctl_dropped_bytes, size_t *dropped_pkts, size_t *dropped_bytes, std::vector&lt; Peer_socket::order_num_t &gt; *pkts_marked_to_drop)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that acts on the determination made by categorize_pkts_...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03102">peer_socket.cpp:3102</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac1485c07049d4bee70ad4ef2fc07bf12"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac1485c07049d4bee70ad4ef2fc07bf12">flow::net_flow::Node::setup_connection_timers</a></div><div class="ttdeci">void setup_connection_timers(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, bool initial)</div><div class="ttdoc">Assuming we've just sent SYN or SYN_ACK, sets up an asynchronous scheduled task to fire within some a...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04329">peer_socket.cpp:4329</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac2fdb686165aae42f474cc655fca80c0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac2fdb686165aae42f474cc655fca80c0">flow::net_flow::Node::log_rcv_window</a></div><div class="ttdeci">void log_rcv_window(Peer_socket::Const_ptr sock, bool force_verbose_info_logging=false) const</div><div class="ttdoc">Logs TRACE or DATA messages that show the detailed state of the receiving sequence number space.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l01910">peer_socket.cpp:1910</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac397d3fd163f1456b7bb370a3cff951c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">flow::net_flow::Node::sock_rcv_wnd</a></div><div class="ttdeci">size_t sock_rcv_wnd(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Computes and returns the currently correct rcv_wnd value; that is the amount of space free in Receive...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05524">peer_socket.cpp:5524</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac619d1a96cc62d223f990ee6a3c909ff"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac619d1a96cc62d223f990ee6a3c909ff">flow::net_flow::Node::connect_worker</a></div><div class="ttdeci">void connect_worker(const Remote_endpoint &amp;to, const boost::asio::const_buffer &amp;serialized_metadata, const Peer_socket_options *opts, Peer_socket::Ptr *sock)</div><div class="ttdoc">Thread W implementation of connect().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04011">peer_socket.cpp:4011</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac910f24e5a176c4aa01992b08b62146a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac910f24e5a176c4aa01992b08b62146a">flow::net_flow::Node::drop_pkts_on_acks</a></div><div class="ttdeci">bool drop_pkts_on_acks(Peer_socket::Ptr sock, const Peer_socket::Sent_pkt_ordered_by_when_iter &amp;last_dropped_pkt_it, size_t *cong_ctl_dropped_pkts, size_t *cong_ctl_dropped_bytes, size_t *dropped_pkts, size_t *dropped_bytes, std::vector&lt; Peer_socket::order_num_t &gt; *pkts_marked_to_drop)</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that acts on the determination made by categorize_pkts_...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03108">peer_socket.cpp:3108</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac9f6edfb36abcd0402c4bd75b595f271"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac9f6edfb36abcd0402c4bd75b595f271">flow::net_flow::Node::S_MAX_LATER_ACKS_BEFORE_CONSIDERING_DROPPED</a></div><div class="ttdeci">static const Peer_socket::Sent_packet::ack_count_t S_MAX_LATER_ACKS_BEFORE_CONSIDERING_DROPPED</div><div class="ttdoc">For a given unacknowledged sent packet P, the maximum number of times any individual packet with high...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03686">node.hpp:3686</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_acaf55766783893827061fd85cab2634f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#acaf55766783893827061fd85cab2634f">flow::net_flow::Node::async_low_lvl_syn_ack_ack_send_or_close_immediately</a></div><div class="ttdeci">bool async_low_lvl_syn_ack_ack_send_or_close_immediately(const Peer_socket::Ptr &amp;sock, boost::shared_ptr&lt; const Syn_ack_packet &gt; &amp;syn_ack)</div><div class="ttdoc">Helper to create, fully fill out, and asynchronously send via async_sock_low_lvl_packet_send_or_close...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05839">peer_socket.cpp:5839</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_acaf55766783893827061fd85cab2634f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#acaf55766783893827061fd85cab2634f">flow::net_flow::Node::async_low_lvl_syn_ack_ack_send_or_close_immediately</a></div><div class="ttdeci">bool async_low_lvl_syn_ack_ack_send_or_close_immediately(const Peer_socket::Ptr &amp;sock, boost::shared_ptr&lt; const Syn_ack_packet &gt; &amp;syn_ack)</div><div class="ttdoc">Helper to create, fully fill out, and asynchronously send via async_sock_low_lvl_packet_send_or_close...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05845">peer_socket.cpp:5845</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_acfbd969c7a16b2ea8bb7f0db6fa454df"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#acfbd969c7a16b2ea8bb7f0db6fa454df">flow::net_flow::Node::sock_categorize_data_to_established</a></div><div class="ttdeci">Error_code sock_categorize_data_to_established(Peer_socket::Ptr sock, boost::shared_ptr&lt; const Data_packet &gt; packet, bool *dupe, bool *slide, size_t *slide_size)</div><div class="ttdoc">Helper for handle_data_to_established() that categorizes the DATA packet received as either illegal; ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00825">peer_socket.cpp:825</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad03aa88df3d1d3981454ee3356e868c1"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad03aa88df3d1d3981454ee3356e868c1">flow::net_flow::Node::async_sock_low_lvl_rst_send</a></div><div class="ttdeci">void async_sock_low_lvl_rst_send(Peer_socket::Ptr sock)</div><div class="ttdoc">Sends an RST to the other side of the given socket asynchronously when possible.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l01033">low_lvl_io.cpp:1033</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad502e0a992a79b71af42a9cdc20a4280"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">flow::net_flow::Node::sock_set_state</a></div><div class="ttdeci">void sock_set_state(Peer_socket::Ptr sock, Peer_socket::State state, Peer_socket::Open_sub_state open_sub_state=Peer_socket::Open_sub_state::S_CONNECTED)</div><div class="ttdoc">Sets Peer_socket::m_state and Peer_socket::m_open_sub_state.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06112">peer_socket.cpp:6112</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad608f9bbe76426f4fbf4bf5af908e4e0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad608f9bbe76426f4fbf4bf5af908e4e0">flow::net_flow::Node::receive_emptied_rcv_buf_while_disconnecting</a></div><div class="ttdeci">void receive_emptied_rcv_buf_while_disconnecting(Peer_socket::Ptr sock)</div><div class="ttdoc">Placed by receive() onto W during a graceful close, after the Receive buffer had been emptied by the ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05551">peer_socket.cpp:5551</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ada9357f6ce9d5fc249b1cc176afdc471"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ada9357f6ce9d5fc249b1cc176afdc471">flow::net_flow::Node::sock_disconnect_detected</a></div><div class="ttdeci">void sock_disconnect_detected(Peer_socket::Ptr sock, const Error_code &amp;disconnect_cause, bool close)</div><div class="ttdoc">Records that thread W shows underlying connection is broken (graceful termination,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06134">peer_socket.cpp:6134</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_addbb96858fd7b3c9ddd7c6fe8078809c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#addbb96858fd7b3c9ddd7c6fe8078809c">flow::net_flow::Node::receive</a></div><div class="ttdeci">size_t receive(Peer_socket::Ptr sock, const Function&lt; size_t()&gt; &amp;rcv_buf_consume_func, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking sock-&gt;receive() for socket sock in all cases except when sock-&gt;state()...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05083">peer_socket.cpp:5083</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_addd654cb6b1ccff34ddccbe5226be8f0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#addd654cb6b1ccff34ddccbe5226be8f0">flow::net_flow::Node::handle_connection_rexmit_timer_event</a></div><div class="ttdeci">void handle_connection_rexmit_timer_event(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Handles the triggering of the retransmit timer wait set up by setup_connection_timers(); it will re-s...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04402">peer_socket.cpp:4402</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad502e0a992a79b71af42a9cdc20a4280"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">flow::net_flow::Node::sock_set_state</a></div><div class="ttdeci">void sock_set_state(Peer_socket::Ptr sock, Peer_socket::State state, Peer_socket::Open_sub_state open_sub_state=Peer_socket::Open_sub_state::S_CONNECTED)</div><div class="ttdoc">Sets Peer_socket::m_state and Peer_socket::m_open_sub_state.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06118">peer_socket.cpp:6118</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad608f9bbe76426f4fbf4bf5af908e4e0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad608f9bbe76426f4fbf4bf5af908e4e0">flow::net_flow::Node::receive_emptied_rcv_buf_while_disconnecting</a></div><div class="ttdeci">void receive_emptied_rcv_buf_while_disconnecting(Peer_socket::Ptr sock)</div><div class="ttdoc">Placed by receive() onto W during a graceful close, after the Receive buffer had been emptied by the ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05557">peer_socket.cpp:5557</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ada9357f6ce9d5fc249b1cc176afdc471"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ada9357f6ce9d5fc249b1cc176afdc471">flow::net_flow::Node::sock_disconnect_detected</a></div><div class="ttdeci">void sock_disconnect_detected(Peer_socket::Ptr sock, const Error_code &amp;disconnect_cause, bool close)</div><div class="ttdoc">Records that thread W shows underlying connection is broken (graceful termination,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06140">peer_socket.cpp:6140</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_addbb96858fd7b3c9ddd7c6fe8078809c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#addbb96858fd7b3c9ddd7c6fe8078809c">flow::net_flow::Node::receive</a></div><div class="ttdeci">size_t receive(Peer_socket::Ptr sock, const Function&lt; size_t()&gt; &amp;rcv_buf_consume_func, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking sock-&gt;receive() for socket sock in all cases except when sock-&gt;state()...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05089">peer_socket.cpp:5089</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_addd654cb6b1ccff34ddccbe5226be8f0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#addd654cb6b1ccff34ddccbe5226be8f0">flow::net_flow::Node::handle_connection_rexmit_timer_event</a></div><div class="ttdeci">void handle_connection_rexmit_timer_event(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Handles the triggering of the retransmit timer wait set up by setup_connection_timers(); it will re-s...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04408">peer_socket.cpp:4408</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade08f0457943f803c23b55649139c0d3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade08f0457943f803c23b55649139c0d3">flow::net_flow::Node::m_opts</a></div><div class="ttdeci">Node_options m_opts</div><div class="ttdoc">This Node's global set of options.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03704">node.hpp:3704</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade49e7bc7202a0adf33fec2d93d1b177"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">flow::net_flow::Node::close_connection_immediately</a></div><div class="ttdeci">void close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">A thread W method that handles the transition of the given socket from OPEN (any sub-state) to CLOSED...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05683">peer_socket.cpp:5683</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade529b5452c9fe363ae468346e662ceb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade529b5452c9fe363ae468346e662ceb">flow::net_flow::Node::sock_disconnect_completed</a></div><div class="ttdeci">void sock_disconnect_completed(Peer_socket::Ptr sock)</div><div class="ttdoc">While in S_OPEN+S_DISCONNECTING state (i.e., after beginning a graceful close with sock_disconnect_de...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06155">peer_socket.cpp:6155</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_adeccd8c86fcd54733e42593629fad96b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#adeccd8c86fcd54733e42593629fad96b">flow::net_flow::Node::compute_rtt_on_ack</a></div><div class="ttdeci">Fine_duration compute_rtt_on_ack(Peer_socket::Sent_packet::Const_ptr flying_pkt, const Fine_time_pt &amp;time_now, Ack_packet::Individual_ack::Const_ptr ack, const Peer_socket::Sent_packet::Sent_when **sent_when) const</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that computes the RTT implied by a given individual ack...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02870">peer_socket.cpp:2870</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae9a0e5492b9ea005cc12c20c8e7cec9a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae9a0e5492b9ea005cc12c20c8e7cec9a">flow::net_flow::Node::connect_with_metadata</a></div><div class="ttdeci">Peer_socket::Ptr connect_with_metadata(const Remote_endpoint &amp;to, const boost::asio::const_buffer &amp;serialized_metadata, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">Same as connect() but sends, as part of the connection handshake, the user-supplied metadata,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03951">peer_socket.cpp:3951</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae9b88eadca41228fe6a671f2f14ead0b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae9b88eadca41228fe6a671f2f14ead0b">flow::net_flow::Node::new_round_trip_time_sample</a></div><div class="ttdeci">void new_round_trip_time_sample(Peer_socket::Ptr sock, Fine_duration round_trip_time)</div><div class="ttdoc">Handles a just-computed new RTT (round trip time) measurement for an individual packet earlier sent: ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03497">peer_socket.cpp:3497</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_af39d69abde4efa88d5d40e1c529c1a25"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#af39d69abde4efa88d5d40e1c529c1a25">flow::net_flow::Node::ok_to_rexmit_or_close</a></div><div class="ttdeci">bool ok_to_rexmit_or_close(Peer_socket::Ptr sock, const Peer_socket::Sent_pkt_ordered_by_when_iter &amp;pkt_it, bool defer_delta_check)</div><div class="ttdoc">Checks whether the given sent packet has been retransmitted the maximum number of allowed times; if s...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03921">peer_socket.cpp:3921</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade49e7bc7202a0adf33fec2d93d1b177"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade49e7bc7202a0adf33fec2d93d1b177">flow::net_flow::Node::close_connection_immediately</a></div><div class="ttdeci">void close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">A thread W method that handles the transition of the given socket from OPEN (any sub-state) to CLOSED...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05689">peer_socket.cpp:5689</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade529b5452c9fe363ae468346e662ceb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade529b5452c9fe363ae468346e662ceb">flow::net_flow::Node::sock_disconnect_completed</a></div><div class="ttdeci">void sock_disconnect_completed(Peer_socket::Ptr sock)</div><div class="ttdoc">While in S_OPEN+S_DISCONNECTING state (i.e., after beginning a graceful close with sock_disconnect_de...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06161">peer_socket.cpp:6161</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_adeccd8c86fcd54733e42593629fad96b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#adeccd8c86fcd54733e42593629fad96b">flow::net_flow::Node::compute_rtt_on_ack</a></div><div class="ttdeci">Fine_duration compute_rtt_on_ack(Peer_socket::Sent_packet::Const_ptr flying_pkt, const Fine_time_pt &amp;time_now, Ack_packet::Individual_ack::Const_ptr ack, const Peer_socket::Sent_packet::Sent_when **sent_when) const</div><div class="ttdoc">Helper of perform_accumulated_on_recv_tasks() that computes the RTT implied by a given individual ack...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l02876">peer_socket.cpp:2876</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae9a0e5492b9ea005cc12c20c8e7cec9a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae9a0e5492b9ea005cc12c20c8e7cec9a">flow::net_flow::Node::connect_with_metadata</a></div><div class="ttdeci">Peer_socket::Ptr connect_with_metadata(const Remote_endpoint &amp;to, const boost::asio::const_buffer &amp;serialized_metadata, Error_code *err_code=0, const Peer_socket_options *opts=0)</div><div class="ttdoc">Same as connect() but sends, as part of the connection handshake, the user-supplied metadata,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03957">peer_socket.cpp:3957</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae9b88eadca41228fe6a671f2f14ead0b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae9b88eadca41228fe6a671f2f14ead0b">flow::net_flow::Node::new_round_trip_time_sample</a></div><div class="ttdeci">void new_round_trip_time_sample(Peer_socket::Ptr sock, Fine_duration round_trip_time)</div><div class="ttdoc">Handles a just-computed new RTT (round trip time) measurement for an individual packet earlier sent: ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03503">peer_socket.cpp:3503</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_af39d69abde4efa88d5d40e1c529c1a25"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#af39d69abde4efa88d5d40e1c529c1a25">flow::net_flow::Node::ok_to_rexmit_or_close</a></div><div class="ttdeci">bool ok_to_rexmit_or_close(Peer_socket::Ptr sock, const Peer_socket::Sent_pkt_ordered_by_when_iter &amp;pkt_it, bool defer_delta_check)</div><div class="ttdoc">Checks whether the given sent packet has been retransmitted the maximum number of allowed times; if s...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03927">peer_socket.cpp:3927</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_af5597a417d03e2bed87cd772ef5cef29"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">flow::net_flow::Node::m_task_engine</a></div><div class="ttdeci">util::Task_engine m_task_engine</div><div class="ttdoc">The main loop engine, functioning in the single-threaded-but-asynchronous callback-based &quot;reactor&quot; st...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03739">node.hpp:3739</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afd6388a362531ada956a864fefff6011"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afd6388a362531ada956a864fefff6011">flow::net_flow::Node::m_ports</a></div><div class="ttdeci">Port_space m_ports</div><div class="ttdoc">Flow port space for both client and server sockets. All threads may access this.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03777">node.hpp:3777</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afe70a0c32695e417e7a09e0ba773f151"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">flow::net_flow::Node::rst_and_close_connection_immediately</a></div><div class="ttdeci">void rst_and_close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">Asynchronously send RST to the other side of the given socket and close_connection_immediately().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05803">peer_socket.cpp:5803</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_affbc6abb1e344c6e98d3ac8068a54670"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#affbc6abb1e344c6e98d3ac8068a54670">flow::net_flow::Node::drop_timer_action</a></div><div class="ttdeci">void drop_timer_action(Peer_socket::Ptr sock, bool drop_all_packets)</div><div class="ttdoc">Handles a Drop_timer (Peer_socket::m_snd_drop_timer) event in ESTABLISHED state by dropping the speci...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03317">peer_socket.cpp:3317</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afe70a0c32695e417e7a09e0ba773f151"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">flow::net_flow::Node::rst_and_close_connection_immediately</a></div><div class="ttdeci">void rst_and_close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">Asynchronously send RST to the other side of the given socket and close_connection_immediately().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05809">peer_socket.cpp:5809</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_affbc6abb1e344c6e98d3ac8068a54670"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#affbc6abb1e344c6e98d3ac8068a54670">flow::net_flow::Node::drop_timer_action</a></div><div class="ttdeci">void drop_timer_action(Peer_socket::Ptr sock, bool drop_all_packets)</div><div class="ttdoc">Handles a Drop_timer (Peer_socket::m_snd_drop_timer) event in ESTABLISHED state by dropping the speci...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l03323">peer_socket.cpp:3323</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator.html">flow::net_flow::Peer_socket_receive_stats_accumulator</a></div><div class="ttdoc">A class that keeps a Peer_socket_receive_stats data store, includes methods to conveniently accumulat...</div><div class="ttdef"><b>Definition:</b> <a href="socket__stats_8hpp_source.html#l00049">socket_stats.hpp:52</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator_html_a20f2fe00c0874f075fade075bb82e234"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator.html#a20f2fe00c0874f075fade075bb82e234">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_accepted_packet</a></div><div class="ttdeci">void good_data_accepted_packet(size_t data)</div><div class="ttdoc">Indicates good_data_packet(), and these data are not dropped (so either delivered into Receive buffer...</div><div class="ttdef"><b>Definition:</b> <a href="socket__stats_8cpp_source.html#l00051">socket_stats.cpp:51</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator_html_a30706cd9e07511f17ec73f6af10926f2"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator.html#a30706cd9e07511f17ec73f6af10926f2">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_dropped_reassembly_q_overflow_packet</a></div><div class="ttdeci">void good_data_dropped_reassembly_q_overflow_packet(size_t data)</div><div class="ttdoc">Indicates good_data_packet(), but these data are dropped due to insufficient Receive reassembly queue...</div><div class="ttdef"><b>Definition:</b> <a href="socket__stats_8cpp_source.html#l00045">socket_stats.cpp:45</a></div></div>
@@ -6734,66 +6740,66 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator_html_ae2ed3438420d6f331549e2decb9f0556"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator.html#ae2ed3438420d6f331549e2decb9f0556">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_first_qd_packet</a></div><div class="ttdeci">void good_data_first_qd_packet(size_t data)</div><div class="ttdoc">Indicates good_data_accepted_packet(), and these data are, upon receipt, queued for reassembly (not i...</div><div class="ttdef"><b>Definition:</b> <a href="socket__stats_8cpp_source.html#l00063">socket_stats.cpp:63</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator_html_aede48ce8c717e5e8f69accc4d8608613"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator.html#aede48ce8c717e5e8f69accc4d8608613">flow::net_flow::Peer_socket_receive_stats_accumulator::good_data_dropped_buf_overflow_packet</a></div><div class="ttdeci">void good_data_dropped_buf_overflow_packet(size_t data)</div><div class="ttdoc">Indicates good_data_packet(), but these data are dropped due to insufficient Receive buffer space.</div><div class="ttdef"><b>Definition:</b> <a href="socket__stats_8cpp_source.html#l00039">socket_stats.cpp:39</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator_html_af841e2009909b4166ee1f821e7054eff"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator.html#af841e2009909b4166ee1f821e7054eff">flow::net_flow::Peer_socket_receive_stats_accumulator::late_or_dupe_data_packet</a></div><div class="ttdeci">void late_or_dupe_data_packet(size_t data)</div><div class="ttdoc">Indicates total_data_packet(), but the arrived data have either already been received before or (more...</div><div class="ttdef"><b>Definition:</b> <a href="socket__stats_8cpp_source.html#l00075">socket_stats.cpp:75</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00215">peer_socket.hpp:223</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a05a765055fd54412c63e57e43697f1bc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a05a765055fd54412c63e57e43697f1bc">flow::net_flow::Peer_socket::m_state</a></div><div class="ttdeci">State m_state</div><div class="ttdoc">See state().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01192">peer_socket.hpp:1192</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00216">peer_socket.hpp:224</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a05a765055fd54412c63e57e43697f1bc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a05a765055fd54412c63e57e43697f1bc">flow::net_flow::Peer_socket::m_state</a></div><div class="ttdeci">State m_state</div><div class="ttdoc">See state().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01193">peer_socket.hpp:1193</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a0c99637726b3c2b2ff1dbf14c6c92752"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a0c99637726b3c2b2ff1dbf14c6c92752">flow::net_flow::Peer_socket::get_connect_metadata</a></div><div class="ttdeci">size_t get_connect_metadata(const boost::asio::mutable_buffer &amp;buffer, Error_code *err_code=0) const</div><div class="ttdoc">Obtains the serialized connect metadata, as supplied by the user during the connection handshake.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00390">peer_socket.cpp:390</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a102b78eaac9c8add512238ec5f26fcfc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a102b78eaac9c8add512238ec5f26fcfc">flow::net_flow::Peer_socket::max_block_size_multiple</a></div><div class="ttdeci">size_t max_block_size_multiple(const size_t &amp;opt_val_ref, const unsigned int *inflate_pct_val_ptr=0) const</div><div class="ttdoc">Returns the smallest multiple of max_block_size() that is &gt;= the given option value,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00357">peer_socket.cpp:357</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a15ba1d4af6d4e3fcab9534a307c00595"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a15ba1d4af6d4e3fcab9534a307c00595">flow::net_flow::Peer_socket::sync_send_reactor_pattern_impl</a></div><div class="ttdeci">bool sync_send_reactor_pattern_impl(const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">Helper similar to sync_send_impl() but for the null_buffers versions of sync_send().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00112">peer_socket.cpp:112</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1958264af0c40f3c9c5769ddff4c9ade"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1958264af0c40f3c9c5769ddff4c9ade">flow::net_flow::Peer_socket::Sent_pkt_by_seq_num_map</a></div><div class="ttdeci">std::map&lt; Sequence_number, Sent_pkt_ordered_by_when_iter &gt; Sent_pkt_by_seq_num_map</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_seq_num type; see that data member.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00949">peer_socket.hpp:949</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1958264af0c40f3c9c5769ddff4c9ade"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1958264af0c40f3c9c5769ddff4c9ade">flow::net_flow::Peer_socket::Sent_pkt_by_seq_num_map</a></div><div class="ttdeci">std::map&lt; Sequence_number, Sent_pkt_ordered_by_when_iter &gt; Sent_pkt_by_seq_num_map</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_seq_num type; see that data member.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00950">peer_socket.hpp:950</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1a2eccfa314a397c12259f414ef6798c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1a2eccfa314a397c12259f414ef6798c">flow::net_flow::Peer_socket::sync_receive_reactor_pattern_impl</a></div><div class="ttdeci">bool sync_receive_reactor_pattern_impl(const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">Helper similar to sync_receive_impl() but for the null_buffers versions of sync_receive().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00197">peer_socket.cpp:197</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a218ec098984b754b43940001f59ab787"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a218ec098984b754b43940001f59ab787">flow::net_flow::Peer_socket::m_remote_endpoint</a></div><div class="ttdeci">Remote_endpoint m_remote_endpoint</div><div class="ttdoc">See remote_endpoint(). Should be set before user gets access to *this and not changed afterwards.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01344">peer_socket.hpp:1344</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a256b77e546fff9394ef8d509e2ae771b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">flow::net_flow::Peer_socket::sync_receive</a></div><div class="ttdeci">size_t sync_receive(const Mutable_buffer_sequence &amp;target, const boost::chrono::duration&lt; Rep, Period &gt; &amp;max_wait, Error_code *err_code=0)</div><div class="ttdoc">Blocking (synchronous) version of receive().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02591">peer_socket.hpp:2591</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a322dddf34a06bb199dab02c993bad686"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a322dddf34a06bb199dab02c993bad686">flow::net_flow::Peer_socket::m_serialized_metadata</a></div><div class="ttdeci">util::Blob m_serialized_metadata</div><div class="ttdoc">If !m_active_connect, this contains the serialized metadata that the user supplied on the other side ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01328">peer_socket.hpp:1328</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a218ec098984b754b43940001f59ab787"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a218ec098984b754b43940001f59ab787">flow::net_flow::Peer_socket::m_remote_endpoint</a></div><div class="ttdeci">Remote_endpoint m_remote_endpoint</div><div class="ttdoc">See remote_endpoint(). Should be set before user gets access to *this and not changed afterwards.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01345">peer_socket.hpp:1345</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a256b77e546fff9394ef8d509e2ae771b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">flow::net_flow::Peer_socket::sync_receive</a></div><div class="ttdeci">size_t sync_receive(const Mutable_buffer_sequence &amp;target, const boost::chrono::duration&lt; Rep, Period &gt; &amp;max_wait, Error_code *err_code=0)</div><div class="ttdoc">Blocking (synchronous) version of receive().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02586">peer_socket.hpp:2586</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a322dddf34a06bb199dab02c993bad686"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a322dddf34a06bb199dab02c993bad686">flow::net_flow::Peer_socket::m_serialized_metadata</a></div><div class="ttdeci">util::Blob m_serialized_metadata</div><div class="ttdoc">If !m_active_connect, this contains the serialized metadata that the user supplied on the other side ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01329">peer_socket.hpp:1329</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a34e2c7dfb5596269a6f86a716015f1a6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a34e2c7dfb5596269a6f86a716015f1a6">flow::net_flow::Peer_socket::node_sync_send</a></div><div class="ttdeci">size_t node_sync_send(const Function&lt; size_t(size_t max_data_size)&gt; &amp;snd_buf_feed_func_or_empty, const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">This is to sync_send() as node_send() is to send().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00149">peer_socket.cpp:149</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a36ab27af6886c7699f9965a5eb296cd6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a36ab27af6886c7699f9965a5eb296cd6">flow::net_flow::Peer_socket::m_node</a></div><div class="ttdeci">Node * m_node</div><div class="ttdoc">See node().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01217">peer_socket.hpp:1217</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a4fb8e8df98efa023e8bd4bd825475a18"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a4fb8e8df98efa023e8bd4bd825475a18">flow::net_flow::Peer_socket::m_disconnect_cause</a></div><div class="ttdeci">Error_code m_disconnect_cause</div><div class="ttdoc">The Error_code causing disconnection (if one has occurred or is occurring) on this socket; otherwise ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01312">peer_socket.hpp:1312</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a36ab27af6886c7699f9965a5eb296cd6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a36ab27af6886c7699f9965a5eb296cd6">flow::net_flow::Peer_socket::m_node</a></div><div class="ttdeci">Node * m_node</div><div class="ttdoc">See node().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01218">peer_socket.hpp:1218</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a4fb8e8df98efa023e8bd4bd825475a18"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a4fb8e8df98efa023e8bd4bd825475a18">flow::net_flow::Peer_socket::m_disconnect_cause</a></div><div class="ttdeci">Error_code m_disconnect_cause</div><div class="ttdoc">The Error_code causing disconnection (if one has occurred or is occurring) on this socket; otherwise ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01313">peer_socket.hpp:1313</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5003c554807f5b5b58989ad58be48d42"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5003c554807f5b5b58989ad58be48d42">flow::net_flow::Peer_socket::Peer_socket</a></div><div class="ttdeci">Peer_socket(log::Logger *logger_ptr, util::Task_engine *task_engine, const Peer_socket_options &amp;opts)</div><div class="ttdoc">Constructs object; initializes most values to well-defined (0, empty, etc.) but not necessarily meani...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00037">peer_socket.cpp:37</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5dc05d1f5deb71e1259c5d5aad1fcf84"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5dc05d1f5deb71e1259c5d5aad1fcf84">flow::net_flow::Peer_socket::m_rcv_init_seq_num</a></div><div class="ttdeci">Sequence_number m_rcv_init_seq_num</div><div class="ttdoc">The Initial Sequence Number (ISN) contained in the original Syn_packet or Syn_ack_packet we received.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01386">peer_socket.hpp:1386</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5dc05d1f5deb71e1259c5d5aad1fcf84"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5dc05d1f5deb71e1259c5d5aad1fcf84">flow::net_flow::Peer_socket::m_rcv_init_seq_num</a></div><div class="ttdeci">Sequence_number m_rcv_init_seq_num</div><div class="ttdoc">The Initial Sequence Number (ISN) contained in the original Syn_packet or Syn_ack_packet we received.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01387">peer_socket.hpp:1387</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5e423a9fd18a45cc7cc5fc34af29161e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5e423a9fd18a45cc7cc5fc34af29161e">flow::net_flow::Peer_socket::remote_endpoint</a></div><div class="ttdeci">const Remote_endpoint &amp; remote_endpoint() const</div><div class="ttdoc">Intended other side of the connection (regardless of success, failure, or current State).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00378">peer_socket.cpp:378</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6a9bb727c8982f24bcf978c10c2c7345"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">flow::net_flow::Peer_socket::State</a></div><div class="ttdeci">State</div><div class="ttdoc">State of a Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00228">peer_socket.hpp:229</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6a9bb727c8982f24bcf978c10c2c7345"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">flow::net_flow::Peer_socket::State</a></div><div class="ttdeci">State</div><div class="ttdoc">State of a Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00229">peer_socket.hpp:230</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::State::S_OPEN</a></div><div class="ttdeci">@ S_OPEN</div><div class="ttdoc">Future reads or writes may be possible. A socket in this state may be Writable or Readable.</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::State::S_CLOSED</a></div><div class="ttdeci">@ S_CLOSED</div><div class="ttdoc">Neither future reads nor writes are possible, AND Node has disowned the Peer_socket.</div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6f48d01d1269c9d4260d972baa40e548"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">flow::net_flow::Peer_socket::Open_sub_state</a></div><div class="ttdeci">Open_sub_state</div><div class="ttdoc">The sub-state of a Peer_socket when state is State::S_OPEN.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00237">peer_socket.hpp:238</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6f48d01d1269c9d4260d972baa40e548"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">flow::net_flow::Peer_socket::Open_sub_state</a></div><div class="ttdeci">Open_sub_state</div><div class="ttdoc">The sub-state of a Peer_socket when state is State::S_OPEN.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00238">peer_socket.hpp:239</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">flow::net_flow::Peer_socket::Open_sub_state::S_CONNECTED</a></div><div class="ttdeci">@ S_CONNECTED</div><div class="ttdoc">This Peer_socket was created through a passive connect (Node::accept() and the like) or an active con...</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">flow::net_flow::Peer_socket::Open_sub_state::S_CONNECTING</a></div><div class="ttdeci">@ S_CONNECTING</div><div class="ttdoc">This Peer_socket was created through an active connect (Node::connect() and the like),...</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548ae2b40112ddbd5a78114d600ec26726b9">flow::net_flow::Peer_socket::Open_sub_state::S_DISCONNECTING</a></div><div class="ttdeci">@ S_DISCONNECTING</div><div class="ttdoc">This Peer_socket was created through a passive connect (Node::accept() and the like) or an active con...</div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a70629642551f18e474b87c128d2d77e2"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">flow::net_flow::Peer_socket::sync_send</a></div><div class="ttdeci">size_t sync_send(const Const_buffer_sequence &amp;data, const boost::chrono::duration&lt; Rep, Period &gt; &amp;max_wait, Error_code *err_code=0)</div><div class="ttdoc">Blocking (synchronous) version of send().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02497">peer_socket.hpp:2497</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a70629642551f18e474b87c128d2d77e2"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">flow::net_flow::Peer_socket::sync_send</a></div><div class="ttdeci">size_t sync_send(const Const_buffer_sequence &amp;data, const boost::chrono::duration&lt; Rep, Period &gt; &amp;max_wait, Error_code *err_code=0)</div><div class="ttdoc">Blocking (synchronous) version of send().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02492">peer_socket.hpp:2492</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a729af2cb3465b67b811d8e9438b5af5d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a729af2cb3465b67b811d8e9438b5af5d">flow::net_flow::Peer_socket::~Peer_socket</a></div><div class="ttdeci">~Peer_socket() override</div><div class="ttdoc">Boring virtual destructor. Note that deletion is to be handled exclusively via shared_ptr,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00077">peer_socket.cpp:77</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a74f6fd527766fdeb05a96c5c03729a00"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a74f6fd527766fdeb05a96c5c03729a00">flow::net_flow::Peer_socket::disconnect_cause</a></div><div class="ttdeci">Error_code disconnect_cause() const</div><div class="ttdoc">The error code that perviously caused state() to become State::S_CLOSED, or success code if state is ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00101">peer_socket.cpp:101</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a797a524b73e2626fcfefe1be64f4d481"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">flow::net_flow::Peer_socket::order_num_t</a></div><div class="ttdeci">Sequence_number::seq_num_t order_num_t</div><div class="ttdoc">Short-hand for order number type. 0 is reserved. Caution: Keep in sync with Drop_timer::packet_id_t.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00905">peer_socket.hpp:905</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a797a524b73e2626fcfefe1be64f4d481"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">flow::net_flow::Peer_socket::order_num_t</a></div><div class="ttdeci">Sequence_number::seq_num_t order_num_t</div><div class="ttdoc">Short-hand for order number type. 0 is reserved. Caution: Keep in sync with Drop_timer::packet_id_t.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00906">peer_socket.hpp:906</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7af387476aa0bdc6b3906c153d824acb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7af387476aa0bdc6b3906c153d824acb">flow::net_flow::Peer_socket::local_port</a></div><div class="ttdeci">flow_port_t local_port() const</div><div class="ttdoc">The local Flow-protocol port chosen by the Node (if active or passive open) or user (if passive open)...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00384">peer_socket.cpp:384</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7b65c1b26e38a2ae614d9a12edfa57dd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7b65c1b26e38a2ae614d9a12edfa57dd">flow::net_flow::Peer_socket::m_local_port</a></div><div class="ttdeci">flow_port_t m_local_port</div><div class="ttdoc">See local_port(). Should be set before user gets access to *this and not changed afterwards.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01347">peer_socket.hpp:1347</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7c0f36768414ae35afeb525636a41290"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7c0f36768414ae35afeb525636a41290">flow::net_flow::Peer_socket::Send_bandwidth_estimator</a></div><div class="ttdeci">friend class Send_bandwidth_estimator</div><div class="ttdoc">Stats modules have const access to all socket internals.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00836">peer_socket.hpp:836</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7b65c1b26e38a2ae614d9a12edfa57dd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7b65c1b26e38a2ae614d9a12edfa57dd">flow::net_flow::Peer_socket::m_local_port</a></div><div class="ttdeci">flow_port_t m_local_port</div><div class="ttdoc">See local_port(). Should be set before user gets access to *this and not changed afterwards.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01348">peer_socket.hpp:1348</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7c0f36768414ae35afeb525636a41290"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7c0f36768414ae35afeb525636a41290">flow::net_flow::Peer_socket::Send_bandwidth_estimator</a></div><div class="ttdeci">friend class Send_bandwidth_estimator</div><div class="ttdoc">Stats modules have const access to all socket internals.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00837">peer_socket.hpp:837</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7d31cf18a3c075873de1c46c0176e41f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7d31cf18a3c075873de1c46c0176e41f">flow::net_flow::Peer_socket::set_options</a></div><div class="ttdeci">bool set_options(const Peer_socket_options &amp;opts, Error_code *err_code=0)</div><div class="ttdoc">Dynamically replaces the current options set (options()) with the given options set.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00297">peer_socket.cpp:297</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a83ba2b4c39555afad67932ea6ed39bbe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a83ba2b4c39555afad67932ea6ed39bbe">flow::net_flow::Peer_socket::node_send</a></div><div class="ttdeci">size_t node_send(const Function&lt; size_t(size_t max_data_size)&gt; &amp;snd_buf_feed_func, Error_code *err_code)</div><div class="ttdoc">Non-template helper for template send() that forwards the send() logic to Node::send().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00134">peer_socket.cpp:134</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a89d852e3722532d75006b024714a5cef"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">flow::net_flow::Peer_socket::rexmit_on</a></div><div class="ttdeci">bool rexmit_on() const</div><div class="ttdoc">Whether retransmission is enabled on this connection.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00373">peer_socket.cpp:373</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a8abde92d5189bf2a058fe8741789f814"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a8abde92d5189bf2a058fe8741789f814">flow::net_flow::Peer_socket::node_sync_receive</a></div><div class="ttdeci">size_t node_sync_receive(const Function&lt; size_t()&gt; &amp;rcv_buf_consume_func_or_empty, const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">This is to sync_receive() as node_receive() is to receive().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00234">peer_socket.cpp:234</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a90abde8badaf451ba6ca615e9936d5df"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">flow::net_flow::Peer_socket::Lock_guard</a></div><div class="ttdeci">util::Lock_guard&lt; Mutex &gt; Lock_guard</div><div class="ttdoc">Short-hand for RAII lock guard of Mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00899">peer_socket.hpp:899</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">flow::net_flow::Peer_socket::Int_state</a></div><div class="ttdeci">Int_state</div><div class="ttdoc">The state of the socket (and the connection from this end's point of view) for the internal state mac...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00913">peer_socket.hpp:914</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a90abde8badaf451ba6ca615e9936d5df"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">flow::net_flow::Peer_socket::Lock_guard</a></div><div class="ttdeci">util::Lock_guard&lt; Mutex &gt; Lock_guard</div><div class="ttdoc">Short-hand for RAII lock guard of Mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00900">peer_socket.hpp:900</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">flow::net_flow::Peer_socket::Int_state</a></div><div class="ttdeci">Int_state</div><div class="ttdoc">The state of the socket (and the connection from this end's point of view) for the internal state mac...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00914">peer_socket.hpp:915</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::Int_state::S_ESTABLISHED</a></div><div class="ttdeci">@ S_ESTABLISHED</div><div class="ttdoc">Public state is OPEN+CONNECTED; in our opinion the connection is established.</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa20112c63421f4aa5d77b5d5ba5b10c87">flow::net_flow::Peer_socket::Int_state::S_SYN_SENT</a></div><div class="ttdeci">@ S_SYN_SENT</div><div class="ttdoc">Public state is OPEN+CONNECTING; user requested active connect; we sent SYN and are awaiting response...</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa6abcbd1be8478aa03e76aec9c540e14f">flow::net_flow::Peer_socket::Int_state::S_CLOSED</a></div><div class="ttdeci">@ S_CLOSED</div><div class="ttdoc">Closed (dead or new) socket.</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa9838c717b26793d3b5360e4d718dc2d2">flow::net_flow::Peer_socket::Int_state::S_SYN_RCVD</a></div><div class="ttdeci">@ S_SYN_RCVD</div><div class="ttdoc">Public state is OPEN+CONNECTING; other side requested passive connect via SYN; we sent SYN_ACK and ar...</div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a98c6729b318f28b61e144f8a9b1f4dfc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">flow::net_flow::Peer_socket::Options_lock</a></div><div class="ttdeci">util::Lock_guard&lt; Options_mutex &gt; Options_lock</div><div class="ttdoc">Short-hand for lock that acquires exclusive access to an Options_mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00888">peer_socket.hpp:888</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a98c6729b318f28b61e144f8a9b1f4dfc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">flow::net_flow::Peer_socket::Options_lock</a></div><div class="ttdeci">util::Lock_guard&lt; Options_mutex &gt; Options_lock</div><div class="ttdoc">Short-hand for lock that acquires exclusive access to an Options_mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00889">peer_socket.hpp:889</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9ab710704237f912eb219f9b8d574afc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9ab710704237f912eb219f9b8d574afc">flow::net_flow::Peer_socket::close_abruptly</a></div><div class="ttdeci">void close_abruptly(Error_code *err_code=0)</div><div class="ttdoc">Acts as if fatal error error::Code::S_USER_CLOSED_ABRUPTLY has been discovered on the connection.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00269">peer_socket.cpp:269</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aa1f821dde38a7aa572651730744edbd8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aa1f821dde38a7aa572651730744edbd8">flow::net_flow::Peer_socket::max_block_size</a></div><div class="ttdeci">size_t max_block_size() const</div><div class="ttdoc">The maximum number of bytes of user data per received or sent packet on this connection.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00352">peer_socket.cpp:352</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aa9e7e1be830c901bc7348742e79ba2e7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aa9e7e1be830c901bc7348742e79ba2e7">flow::net_flow::Peer_socket::node</a></div><div class="ttdeci">Node * node() const</div><div class="ttdoc">Node that produced this Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00095">peer_socket.cpp:95</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aad81cc16fc6f0d353fdc1379e1dd4712"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aad81cc16fc6f0d353fdc1379e1dd4712">flow::net_flow::Peer_socket::info</a></div><div class="ttdeci">Peer_socket_info info() const</div><div class="ttdoc">Returns a structure containing the most up-to-date stats about this connection.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00323">peer_socket.cpp:323</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aaec992a7a14368623cc03c4382d71107"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aaec992a7a14368623cc03c4382d71107">flow::net_flow::Peer_socket::Recvd_pkt_iter</a></div><div class="ttdeci">Recvd_pkt_map::iterator Recvd_pkt_iter</div><div class="ttdoc">Short-hand for m_rcv_packets_with_gaps iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00971">peer_socket.hpp:971</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab41b19ed4e62cb14fcd7dac81e4a8f41"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">flow::net_flow::Peer_socket::m_mutex</a></div><div class="ttdeci">Mutex m_mutex</div><div class="ttdoc">This object's mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01341">peer_socket.hpp:1341</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab7dc3b752b67295c82919c2f87aed60b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::iterator Sent_pkt_ordered_by_when_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00946">peer_socket.hpp:946</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_abd6f3174914c3ec559954b4125f2f9dd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#abd6f3174914c3ec559954b4125f2f9dd">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_seq_const_iter</a></div><div class="ttdeci">Sent_pkt_by_seq_num_map::const_iterator Sent_pkt_ordered_by_seq_const_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_seq_num const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00952">peer_socket.hpp:952</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ac4c942e1bb6c4dc4b24251f294a2f92d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ac4c942e1bb6c4dc4b24251f294a2f92d">flow::net_flow::Peer_socket::m_info_on_close</a></div><div class="ttdeci">Peer_socket_info m_info_on_close</div><div class="ttdoc">This is the final set of stats collected at the time the socket was moved to S_CLOSED m_state.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02166">peer_socket.hpp:2166</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aaec992a7a14368623cc03c4382d71107"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aaec992a7a14368623cc03c4382d71107">flow::net_flow::Peer_socket::Recvd_pkt_iter</a></div><div class="ttdeci">Recvd_pkt_map::iterator Recvd_pkt_iter</div><div class="ttdoc">Short-hand for m_rcv_packets_with_gaps iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00972">peer_socket.hpp:972</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab41b19ed4e62cb14fcd7dac81e4a8f41"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">flow::net_flow::Peer_socket::m_mutex</a></div><div class="ttdeci">Mutex m_mutex</div><div class="ttdoc">This object's mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01342">peer_socket.hpp:1342</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab7dc3b752b67295c82919c2f87aed60b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::iterator Sent_pkt_ordered_by_when_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00947">peer_socket.hpp:947</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_abd6f3174914c3ec559954b4125f2f9dd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#abd6f3174914c3ec559954b4125f2f9dd">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_seq_const_iter</a></div><div class="ttdeci">Sent_pkt_by_seq_num_map::const_iterator Sent_pkt_ordered_by_seq_const_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_seq_num const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00953">peer_socket.hpp:953</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ac4c942e1bb6c4dc4b24251f294a2f92d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ac4c942e1bb6c4dc4b24251f294a2f92d">flow::net_flow::Peer_socket::m_info_on_close</a></div><div class="ttdeci">Peer_socket_info m_info_on_close</div><div class="ttdoc">This is the final set of stats collected at the time the socket was moved to S_CLOSED m_state.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02167">peer_socket.hpp:2167</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ac7cbefb99ae173bd5f355f5d082564ce"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ac7cbefb99ae173bd5f355f5d082564ce">flow::net_flow::Peer_socket::ensure_open</a></div><div class="ttdeci">bool ensure_open(Error_code *err_code) const</div><div class="ttdoc">Helper that is equivalent to Node::ensure_sock_open(this, err_code).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00419">peer_socket.cpp:419</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ac974bdce3d2035d2af69078837f59482"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_const_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::const_iterator Sent_pkt_ordered_by_when_const_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00943">peer_socket.hpp:943</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_accf6d724ed1f145716ae3d4567f582f3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#accf6d724ed1f145716ae3d4567f582f3">flow::net_flow::Peer_socket::opt</a></div><div class="ttdeci">Opt_type opt(const Opt_type &amp;opt_val_ref) const</div><div class="ttdoc">Analogous to Node::opt() but for per-socket options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02644">peer_socket.hpp:2644</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ac974bdce3d2035d2af69078837f59482"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_const_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::const_iterator Sent_pkt_ordered_by_when_const_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00944">peer_socket.hpp:944</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_accf6d724ed1f145716ae3d4567f582f3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#accf6d724ed1f145716ae3d4567f582f3">flow::net_flow::Peer_socket::opt</a></div><div class="ttdeci">Opt_type opt(const Opt_type &amp;opt_val_ref) const</div><div class="ttdoc">Analogous to Node::opt() but for per-socket options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02639">peer_socket.hpp:2639</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_acd100a3c02fad5d9e00fcbc1f645f116"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#acd100a3c02fad5d9e00fcbc1f645f116">flow::net_flow::Peer_socket::bytes_blocks_str</a></div><div class="ttdeci">std::string bytes_blocks_str(size_t bytes) const</div><div class="ttdoc">Helper that, given a byte count, returns a string with that byte count and the number of max_block_si...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00424">peer_socket.cpp:424</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad59c09f34003873a3c207cc590236773"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad59c09f34003873a3c207cc590236773">flow::net_flow::Peer_socket::m_opts</a></div><div class="ttdeci">Peer_socket_options m_opts</div><div class="ttdoc">This socket's per-socket set of options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01178">peer_socket.hpp:1178</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad59c09f34003873a3c207cc590236773"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad59c09f34003873a3c207cc590236773">flow::net_flow::Peer_socket::m_opts</a></div><div class="ttdeci">Peer_socket_options m_opts</div><div class="ttdoc">This socket's per-socket set of options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01179">peer_socket.hpp:1179</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad94e37c8cca01f801f13e9e0e0bc857d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad94e37c8cca01f801f13e9e0e0bc857d">flow::net_flow::Peer_socket::options</a></div><div class="ttdeci">Peer_socket_options options() const</div><div class="ttdoc">Copies this socket's option set and returns that copy.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00318">peer_socket.cpp:318</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_addfbe1487c621d4a9c464aec61bc108a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a">flow::net_flow::Peer_socket::m_opts_mutex</a></div><div class="ttdeci">Options_mutex m_opts_mutex</div><div class="ttdoc">The mutex protecting m_opts.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01181">peer_socket.hpp:1181</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_addfc181f4d43ab816b2ede9216bf9331"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#addfc181f4d43ab816b2ede9216bf9331">flow::net_flow::Peer_socket::Recvd_pkt_map</a></div><div class="ttdeci">std::map&lt; Sequence_number, boost::shared_ptr&lt; Received_packet &gt; &gt; Recvd_pkt_map</div><div class="ttdoc">Short-hand for m_rcv_packets_with_gaps type; see that data member.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00965">peer_socket.hpp:965</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ade41e13eb5176d833c7b1ea144612353"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ade41e13eb5176d833c7b1ea144612353">flow::net_flow::Peer_socket::Recvd_pkt_const_iter</a></div><div class="ttdeci">Recvd_pkt_map::const_iterator Recvd_pkt_const_iter</div><div class="ttdoc">Short-hand for m_rcv_packets_with_gaps const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00968">peer_socket.hpp:968</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ae5d47460784cc20c9e44237edffaac95"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ae5d47460784cc20c9e44237edffaac95">flow::net_flow::Peer_socket::m_open_sub_state</a></div><div class="ttdeci">Open_sub_state m_open_sub_state</div><div class="ttdoc">See state().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01201">peer_socket.hpp:1201</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_addfbe1487c621d4a9c464aec61bc108a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a">flow::net_flow::Peer_socket::m_opts_mutex</a></div><div class="ttdeci">Options_mutex m_opts_mutex</div><div class="ttdoc">The mutex protecting m_opts.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01182">peer_socket.hpp:1182</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_addfc181f4d43ab816b2ede9216bf9331"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#addfc181f4d43ab816b2ede9216bf9331">flow::net_flow::Peer_socket::Recvd_pkt_map</a></div><div class="ttdeci">std::map&lt; Sequence_number, boost::shared_ptr&lt; Received_packet &gt; &gt; Recvd_pkt_map</div><div class="ttdoc">Short-hand for m_rcv_packets_with_gaps type; see that data member.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00966">peer_socket.hpp:966</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ade41e13eb5176d833c7b1ea144612353"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ade41e13eb5176d833c7b1ea144612353">flow::net_flow::Peer_socket::Recvd_pkt_const_iter</a></div><div class="ttdeci">Recvd_pkt_map::const_iterator Recvd_pkt_const_iter</div><div class="ttdoc">Short-hand for m_rcv_packets_with_gaps const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00969">peer_socket.hpp:969</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ae5d47460784cc20c9e44237edffaac95"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ae5d47460784cc20c9e44237edffaac95">flow::net_flow::Peer_socket::m_open_sub_state</a></div><div class="ttdeci">Open_sub_state m_open_sub_state</div><div class="ttdoc">See state().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01202">peer_socket.hpp:1202</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_af3ac1b0b3c9b1c3a5ec246148595c657"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#af3ac1b0b3c9b1c3a5ec246148595c657">flow::net_flow::Peer_socket::node_receive</a></div><div class="ttdeci">size_t node_receive(const Function&lt; size_t()&gt; &amp;rcv_buf_consume_func, Error_code *err_code)</div><div class="ttdoc">Non-template helper for template receive() that forwards the receive() logic to Node::receive().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00219">peer_socket.cpp:219</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_af982953b5136c1df488066eacc293a78"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#af982953b5136c1df488066eacc293a78">flow::net_flow::Peer_socket::state</a></div><div class="ttdeci">State state(Open_sub_state *open_sub_state=0) const</div><div class="ttdoc">Current State of the socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00085">peer_socket.cpp:85</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Port__space_html_a9fe1be917ff7584ff587b5da5967127a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Port__space.html#a9fe1be917ff7584ff587b5da5967127a">flow::net_flow::Port_space::return_port</a></div><div class="ttdeci">void return_port(flow_port_t port, Error_code *err_code)</div><div class="ttdoc">Return a previously reserved port (of any type).</div><div class="ttdef"><b>Definition:</b> <a href="port__space_8cpp_source.html#l00175">port_space.cpp:175</a></div></div>
@@ -6849,58 +6855,58 @@
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_a079d8cd87a68d1c5f04c6bce71f0061d"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow::net_flow::flow_port_t</a></div><div class="ttdeci">uint16_t flow_port_t</div><div class="ttdoc">Logical Flow port type (analogous to a UDP/TCP port in spirit but in no way relevant to UDP/TCP).</div><div class="ttdef"><b>Definition:</b> <a href="net__flow__fwd_8hpp_source.html#l00054">net_flow_fwd.hpp:54</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_a9dd0c9d8de00fab78d8b0a3f50dad2a9"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#a9dd0c9d8de00fab78d8b0a3f50dad2a9">flow::net_flow::S_PORT_ANY</a></div><div class="ttdeci">const flow_port_t S_PORT_ANY</div><div class="ttdoc">Special Flow port value used to indicate &quot;invalid port&quot; or &quot;please pick a random available ephemeral ...</div><div class="ttdef"><b>Definition:</b> <a href="port__space_8cpp_source.html#l00033">port_space.cpp:33</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_ab9f537c84f77e9b8fa742fc5dc6d5693"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#ab9f537c84f77e9b8fa742fc5dc6d5693">flow::net_flow::operator&lt;&lt;</a></div><div class="ttdeci">std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const Congestion_control_selector::Strategy_choice &amp;strategy_choice)</div><div class="ttdoc">Serializes a Peer_socket_options::Congestion_control_strategy_choice enum to a standard ostream – the...</div><div class="ttdef"><b>Definition:</b> <a href="cong__ctl_8cpp_source.html#l00146">cong_ctl.cpp:146</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a03984e29450abf9cf287c501d6c8f866"><div class="ttname"><a href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">flow::util::key_exists</a></div><div class="ttdeci">bool key_exists(const Container &amp;container, const typename Container::key_type &amp;key)</div><div class="ttdoc">Returns true if and only if the given key is present at least once in the given associative container...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00276">util.hpp:276</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a09a032f8e1e77a3afc0b7df115a773e1"><div class="ttname"><a href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">flow::util::setup_auto_cleanup</a></div><div class="ttdeci">Auto_cleanup setup_auto_cleanup(const Cleanup_func &amp;func)</div><div class="ttdoc">Provides a way to execute arbitrary (cleanup) code at the exit of the current block.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00282">util.hpp:282</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a16357344c21456b86b7de3085e2661a2"><div class="ttname"><a href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">flow::util::buffers_dump_string</a></div><div class="ttdeci">std::string buffers_dump_string(const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Identical to buffers_to_ostream() but returns an std::string instead of writing to a given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00481">util.hpp:481</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a34ed70fa4de81a4fdb9234bfb5a3a914"><div class="ttname"><a href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">flow::util::subtract_with_floor</a></div><div class="ttdeci">bool subtract_with_floor(Minuend *minuend, const Subtrahend &amp;subtrahend, const Minuend &amp;floor)</div><div class="ttdoc">Performs *minuend -= subtrahend, subject to a floor of floor.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00299">util.hpp:299</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a6b7316b3ed6d89f54c91e17c2aab101e"><div class="ttname"><a href="namespaceflow_1_1util.html#a6b7316b3ed6d89f54c91e17c2aab101e">flow::util::ceil_div</a></div><div class="ttdeci">Integer ceil_div(Integer dividend, Integer divisor)</div><div class="ttdoc">Returns the result of the given non-negative integer divided by a positive integer,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00233">util.hpp:233</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a733448fee07c2a77e343a3f1590ff82e"><div class="ttname"><a href="namespaceflow_1_1util.html#a733448fee07c2a77e343a3f1590ff82e">flow::util::in_open_open_range</a></div><div class="ttdeci">bool in_open_open_range(T const &amp;min_val, T const &amp;val, T const &amp;max_val)</div><div class="ttdoc">Returns true if and only if the given value is within the given range, given as a (low,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00270">util.hpp:270</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a03984e29450abf9cf287c501d6c8f866"><div class="ttname"><a href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">flow::util::key_exists</a></div><div class="ttdeci">bool key_exists(const Container &amp;container, const typename Container::key_type &amp;key)</div><div class="ttdoc">Returns true if and only if the given key is present at least once in the given associative container...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00301">util.hpp:301</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a09a032f8e1e77a3afc0b7df115a773e1"><div class="ttname"><a href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">flow::util::setup_auto_cleanup</a></div><div class="ttdeci">Auto_cleanup setup_auto_cleanup(const Cleanup_func &amp;func)</div><div class="ttdoc">Provides a way to execute arbitrary (cleanup) code at the exit of the current block.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00307">util.hpp:307</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a16357344c21456b86b7de3085e2661a2"><div class="ttname"><a href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">flow::util::buffers_dump_string</a></div><div class="ttdeci">std::string buffers_dump_string(const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Identical to buffers_to_ostream() but returns an std::string instead of writing to a given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00506">util.hpp:506</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a34ed70fa4de81a4fdb9234bfb5a3a914"><div class="ttname"><a href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">flow::util::subtract_with_floor</a></div><div class="ttdeci">bool subtract_with_floor(Minuend *minuend, const Subtrahend &amp;subtrahend, const Minuend &amp;floor)</div><div class="ttdoc">Performs *minuend -= subtrahend, subject to a floor of floor.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00324">util.hpp:324</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a6b7316b3ed6d89f54c91e17c2aab101e"><div class="ttname"><a href="namespaceflow_1_1util.html#a6b7316b3ed6d89f54c91e17c2aab101e">flow::util::ceil_div</a></div><div class="ttdeci">Integer ceil_div(Integer dividend, Integer divisor)</div><div class="ttdoc">Returns the result of the given non-negative integer divided by a positive integer,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00258">util.hpp:258</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a733448fee07c2a77e343a3f1590ff82e"><div class="ttname"><a href="namespaceflow_1_1util.html#a733448fee07c2a77e343a3f1590ff82e">flow::util::in_open_open_range</a></div><div class="ttdeci">bool in_open_open_range(T const &amp;min_val, T const &amp;val, T const &amp;max_val)</div><div class="ttdoc">Returns true if and only if the given value is within the given range, given as a (low,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00295">util.hpp:295</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a74d4a66fb00055be4e1bd6ee98e04667"><div class="ttname"><a href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667">flow::util::schedule_task_from_now</a></div><div class="ttdeci">Scheduled_task_handle schedule_task_from_now(log::Logger *logger_ptr, const Fine_duration &amp;from_now, bool single_threaded, Task_engine *task_engine, Scheduled_task_handler &amp;&amp;task_body_moved)</div><div class="ttdoc">Schedule the given function to execute in a certain amount of time: A handy wrapper around Timer (asi...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task_8hpp_source.html#l00034">sched_task.hpp:34</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a79a0f182b38898771d669475d3e963a4"><div class="ttname"><a href="namespaceflow_1_1util.html#a79a0f182b38898771d669475d3e963a4">flow::util::scheduled_task_fired</a></div><div class="ttdeci">bool scheduled_task_fired(log::Logger *logger_ptr, Scheduled_task_const_handle task)</div><div class="ttdoc">Returns whether a previously scheduled (by schedule_task_from_now() or similar) task has already fire...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task_8cpp_source.html#l00238">sched_task.cpp:238</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a8ae762ea4f743a98a73953d7f9ec2164"><div class="ttname"><a href="namespaceflow_1_1util.html#a8ae762ea4f743a98a73953d7f9ec2164">flow::util::in_open_closed_range</a></div><div class="ttdeci">bool in_open_closed_range(T const &amp;min_val, T const &amp;val, T const &amp;max_val)</div><div class="ttdoc">Returns true if and only if the given value is within the given range, given as a (low,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00254">util.hpp:254</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a8afd30c50bcd670d45442df49d1da484"><div class="ttname"><a href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">flow::util::ostream_op_to_string</a></div><div class="ttdeci">void ostream_op_to_string(std::string *target_str, T const &amp;... ostream_args)</div><div class="ttdoc">Writes to the specified string, as if the given arguments were each passed, via &lt;&lt; in sequence,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00342">util.hpp:342</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a8ae762ea4f743a98a73953d7f9ec2164"><div class="ttname"><a href="namespaceflow_1_1util.html#a8ae762ea4f743a98a73953d7f9ec2164">flow::util::in_open_closed_range</a></div><div class="ttdeci">bool in_open_closed_range(T const &amp;min_val, T const &amp;val, T const &amp;max_val)</div><div class="ttdoc">Returns true if and only if the given value is within the given range, given as a (low,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00279">util.hpp:279</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a8afd30c50bcd670d45442df49d1da484"><div class="ttname"><a href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">flow::util::ostream_op_to_string</a></div><div class="ttdeci">void ostream_op_to_string(std::string *target_str, T const &amp;... ostream_args)</div><div class="ttdoc">Writes to the specified string, as if the given arguments were each passed, via &lt;&lt; in sequence,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00367">util.hpp:367</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a9a0812b36dc401a3b2ac5e60e2a070d0"><div class="ttname"><a href="namespaceflow_1_1util.html#a9a0812b36dc401a3b2ac5e60e2a070d0">flow::util::scheduled_task_fires_from_now_or_canceled</a></div><div class="ttdeci">Fine_duration scheduled_task_fires_from_now_or_canceled(log::Logger *logger_ptr, Scheduled_task_const_handle task)</div><div class="ttdoc">Returns how long remains until a previously scheduled (by schedule_task_from_now() or similar) task f...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task_8cpp_source.html#l00200">sched_task.cpp:200</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_aa0d10f5a906b3229f48979aa43e9ff7e"><div class="ttname"><a href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">flow::util::Scheduled_task_handle</a></div><div class="ttdeci">boost::shared_ptr&lt; Scheduled_task_handle_state &gt; Scheduled_task_handle</div><div class="ttdoc">Black-box type that represents a handle to a scheduled task as scheduled by schedule_task_at() or sch...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task__fwd_8hpp_source.html#l00045">sched_task_fwd.hpp:45</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_ab10bc9e8bef148f875aa743fe0852743"><div class="ttname"><a href="namespaceflow_1_1util.html#ab10bc9e8bef148f875aa743fe0852743">flow::util::in_closed_range</a></div><div class="ttdeci">bool in_closed_range(T const &amp;min_val, T const &amp;val, T const &amp;max_val)</div><div class="ttdoc">Returns true if and only if the given value is within the given range, inclusive.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00246">util.hpp:246</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_ab10bc9e8bef148f875aa743fe0852743"><div class="ttname"><a href="namespaceflow_1_1util.html#ab10bc9e8bef148f875aa743fe0852743">flow::util::in_closed_range</a></div><div class="ttdeci">bool in_closed_range(T const &amp;min_val, T const &amp;val, T const &amp;max_val)</div><div class="ttdoc">Returns true if and only if the given value is within the given range, inclusive.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00271">util.hpp:271</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_ab22fd89e165a9e6deaa174bc0dfdc8de"><div class="ttname"><a href="namespaceflow_1_1util.html#ab22fd89e165a9e6deaa174bc0dfdc8de">flow::util::Auto_cleanup</a></div><div class="ttdeci">boost::shared_ptr&lt; void &gt; Auto_cleanup</div><div class="ttdoc">Helper type for setup_auto_cleanup().</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00205">util_fwd.hpp:205</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_ad92e68a1b22556f2625292098c0036a2"><div class="ttname"><a href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">flow::util::scheduled_task_cancel</a></div><div class="ttdeci">bool scheduled_task_cancel(log::Logger *logger_ptr, Scheduled_task_handle task)</div><div class="ttdoc">Attempts to prevent the execution of a previously scheduled (by schedule_task_from_now() or similar) ...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task_8cpp_source.html#l00026">sched_task.cpp:26</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_adf23368210219716b6fd22d15b765cb6"><div class="ttname"><a href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">flow::util::Task_engine</a></div><div class="ttdeci">boost::asio::io_service Task_engine</div><div class="ttdoc">Short-hand for boost.asio event service, the central class of boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00135">util_fwd.hpp:135</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af09888b3a8feaff209b6625e493bc338"><div class="ttname"><a href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">flow::util::Blob</a></div><div class="ttdeci">Blob_with_log_context&lt;&gt; Blob</div><div class="ttdoc">A concrete Blob_with_log_context that compile-time-disables Basic_blob::share() and the sharing API d...</div><div class="ttdef"><b>Definition:</b> <a href="blob__fwd_8hpp_source.html#l00060">blob_fwd.hpp:60</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
-<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00386">common.hpp:386</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
+<div class="ttc" id="anamespaceflow_html_ae02da22c4a101eaab447511c905e4f32"><div class="ttname"><a href="namespaceflow.html#ae02da22c4a101eaab447511c905e4f32">flow::uint8_t</a></div><div class="ttdeci">unsigned char uint8_t</div><div class="ttdoc">Byte. Best way to represent a byte of binary data. This is 8 bits on all modern systems.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00391">common.hpp:391</a></div></div>
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-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html">flow::net_flow::Ack_packet::Individual_ack_rexmit_on</a></div><div class="ttdoc">Equivalent of Individual_ack_rexmit_off but for sockets with retransmission enabled.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01285">low_lvl_packet.hpp:1286</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></div><div class="ttdoc">Specifies the incoming (post-deserialization) acknowledgment of a single received Data_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01194">low_lvl_packet.hpp:1196</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a55bebcb04b4cc192e38023e58bfd761c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">flow::net_flow::Ack_packet::Individual_ack::Const_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; const Individual_ack &gt; Const_ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to immutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01203">low_lvl_packet.hpp:1203</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a374da5eef60c7d8a4085b41cf7b2adfe"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">flow::net_flow::Ack_packet::ack_delay_t</a></div><div class="ttdeci">uint64_t ack_delay_t</div><div class="ttdoc">Type used to store the ACK delay for a given individual acknowledged packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01039">low_lvl_packet.hpp:1039</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_abd3bc7f9e9195bf1b4aca2cad881646c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c">flow::net_flow::Ack_packet::Ack_delay_time_unit</a></div><div class="ttdeci">Fine_duration Ack_delay_time_unit</div><div class="ttdoc">Ack_delay_time_unit(1) is the duration corresponding to the ack_delay_t value 1; and proportionally f...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01042">low_lvl_packet.hpp:1042</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a01ff17bec742d9e363aea2ecd23f2f72"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">flow::net_flow::Low_lvl_packet::rcv_wnd_t</a></div><div class="ttdeci">uint32_t rcv_wnd_t</div><div class="ttdoc">Type used to store the size of m_rcv_wnd member in a couple of different packet types.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00202">low_lvl_packet.hpp:202</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a11e7750d22415a381e23112062f7ca74"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">flow::net_flow::Low_lvl_packet::rexmit_id_t</a></div><div class="ttdeci">uint8_t rexmit_id_t</div><div class="ttdoc">Type used to store the retransmission count in DATA and ACK packets.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00199">low_lvl_packet.hpp:199</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html">flow::net_flow::Ack_packet::Individual_ack_rexmit_off</a></div><div class="ttdoc">Specifies the outgoing (pre-serialization) acknowledgment of a single received Data_packet,...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01250">low_lvl_packet.hpp:1251</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html">flow::net_flow::Ack_packet::Individual_ack_rexmit_on</a></div><div class="ttdoc">Equivalent of Individual_ack_rexmit_off but for sockets with retransmission enabled.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01282">low_lvl_packet.hpp:1283</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></div><div class="ttdoc">Specifies the incoming (post-deserialization) acknowledgment of a single received Data_packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01195">low_lvl_packet.hpp:1197</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack_html_a55bebcb04b4cc192e38023e58bfd761c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">flow::net_flow::Ack_packet::Individual_ack::Const_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; const Individual_ack &gt; Const_ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to immutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01204">low_lvl_packet.hpp:1204</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_a374da5eef60c7d8a4085b41cf7b2adfe"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe">flow::net_flow::Ack_packet::ack_delay_t</a></div><div class="ttdeci">uint64_t ack_delay_t</div><div class="ttdoc">Type used to store the ACK delay for a given individual acknowledged packet.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01040">low_lvl_packet.hpp:1040</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Ack__packet_html_abd3bc7f9e9195bf1b4aca2cad881646c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Ack__packet.html#abd3bc7f9e9195bf1b4aca2cad881646c">flow::net_flow::Ack_packet::Ack_delay_time_unit</a></div><div class="ttdeci">Fine_duration Ack_delay_time_unit</div><div class="ttdoc">Ack_delay_time_unit(1) is the duration corresponding to the ack_delay_t value 1; and proportionally f...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01043">low_lvl_packet.hpp:1043</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a01ff17bec742d9e363aea2ecd23f2f72"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a01ff17bec742d9e363aea2ecd23f2f72">flow::net_flow::Low_lvl_packet::rcv_wnd_t</a></div><div class="ttdeci">uint32_t rcv_wnd_t</div><div class="ttdoc">Type used to store the size of m_rcv_wnd member in a couple of different packet types.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00203">low_lvl_packet.hpp:203</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a11e7750d22415a381e23112062f7ca74"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a11e7750d22415a381e23112062f7ca74">flow::net_flow::Low_lvl_packet::rexmit_id_t</a></div><div class="ttdeci">uint8_t rexmit_id_t</div><div class="ttdoc">Type used to store the retransmission count in DATA and ACK packets.</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l00200">low_lvl_packet.hpp:200</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Node_1_1Socket__id_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Node_1_1Socket__id.html">flow::net_flow::Node::Socket_id</a></div><div class="ttdoc">The data nugget uniquely identifying a peer-to-peer connection from a remote endpoint to a port in th...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03903">node.hpp:3904</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></div><div class="ttdoc">Metadata describing the data sent in the acknowledgment of an individual received packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02382">peer_socket.hpp:2384</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_a209d79e058d103c84fc10be84d492a8b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">flow::net_flow::Peer_socket::Individual_ack::Const_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; const Individual_ack &gt; Const_ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to immutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02391">peer_socket.hpp:2391</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_ad32d17739f7965eeeedfbeae5bfbc1a3"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3">flow::net_flow::Peer_socket::Individual_ack::Ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Individual_ack &gt; Ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to mutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02388">peer_socket.hpp:2388</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html">flow::net_flow::Peer_socket::Received_packet</a></div><div class="ttdoc">Metadata (and data, if retransmission is on) for a packet that has been received (and,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02337">peer_socket.hpp:2341</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html_a7d0760b1dead081bdcf775fbca7f708b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#a7d0760b1dead081bdcf775fbca7f708b">flow::net_flow::Peer_socket::Received_packet::m_size</a></div><div class="ttdeci">const size_t m_size</div><div class="ttdoc">Number of bytes in the Data_packet::m_data field of that packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02345">peer_socket.hpp:2345</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></div><div class="ttdoc">Metadata describing the data sent in the acknowledgment of an individual received packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02383">peer_socket.hpp:2385</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_a209d79e058d103c84fc10be84d492a8b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">flow::net_flow::Peer_socket::Individual_ack::Const_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; const Individual_ack &gt; Const_ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to immutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02392">peer_socket.hpp:2392</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_ad32d17739f7965eeeedfbeae5bfbc1a3"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3">flow::net_flow::Peer_socket::Individual_ack::Ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Individual_ack &gt; Ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to mutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02389">peer_socket.hpp:2389</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html">flow::net_flow::Peer_socket::Received_packet</a></div><div class="ttdoc">Metadata (and data, if retransmission is on) for a packet that has been received (and,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02338">peer_socket.hpp:2342</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html_a7d0760b1dead081bdcf775fbca7f708b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#a7d0760b1dead081bdcf775fbca7f708b">flow::net_flow::Peer_socket::Received_packet::m_size</a></div><div class="ttdeci">const size_t m_size</div><div class="ttdoc">Number of bytes in the Data_packet::m_data field of that packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02346">peer_socket.hpp:2346</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html_a9f0809d5dd7272e31f4111ee2be97330"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#a9f0809d5dd7272e31f4111ee2be97330">flow::net_flow::Peer_socket::Received_packet::Received_packet</a></div><div class="ttdeci">Received_packet(log::Logger *logger_ptr, size_t size, util::Blob *src_data)</div><div class="ttdoc">Constructs object by storing size of data and, if so instructed, the data themselves.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00451">peer_socket.cpp:451</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html_ac3e88e37e53d2572f89c599e520e3e2a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#ac3e88e37e53d2572f89c599e520e3e2a">flow::net_flow::Peer_socket::Received_packet::m_data</a></div><div class="ttdeci">util::Blob m_data</div><div class="ttdoc">Byte sequence equal to that of Data_packet::m_data of the packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02353">peer_socket.hpp:2353</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">flow::net_flow::Peer_socket::Sent_packet::Sent_when</a></div><div class="ttdoc">Data store to keep timing related info when a packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02282">peer_socket.hpp:2283</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html_a5265c3824ad25d1de4f888fa811dd4e6"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_order_num</a></div><div class="ttdeci">const order_num_t m_order_num</div><div class="ttdoc">Order number of the packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02297">peer_socket.hpp:2297</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html_abc5bf2e627dad5d2dcfb0324853b37f7"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#abc5bf2e627dad5d2dcfb0324853b37f7">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_sent_cwnd_bytes</a></div><div class="ttdeci">size_t m_sent_cwnd_bytes</div><div class="ttdoc">The congestion window size (in bytes) that is used when the packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02327">peer_socket.hpp:2327</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html_ad513e58f4eb611c3a91d96df26f53f2c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#ad513e58f4eb611c3a91d96df26f53f2c">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_sent_time</a></div><div class="ttdeci">Fine_time_pt m_sent_time</div><div class="ttdoc">The timestamp when the packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02309">peer_socket.hpp:2309</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">flow::net_flow::Peer_socket::Sent_packet</a></div><div class="ttdoc">Metadata (and data, if retransmission is on) for a packet that has been sent one (if retransmission i...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02177">peer_socket.hpp:2181</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html_ac3e88e37e53d2572f89c599e520e3e2a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#ac3e88e37e53d2572f89c599e520e3e2a">flow::net_flow::Peer_socket::Received_packet::m_data</a></div><div class="ttdeci">util::Blob m_data</div><div class="ttdoc">Byte sequence equal to that of Data_packet::m_data of the packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02354">peer_socket.hpp:2354</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">flow::net_flow::Peer_socket::Sent_packet::Sent_when</a></div><div class="ttdoc">Data store to keep timing related info when a packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02283">peer_socket.hpp:2284</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html_a5265c3824ad25d1de4f888fa811dd4e6"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_order_num</a></div><div class="ttdeci">const order_num_t m_order_num</div><div class="ttdoc">Order number of the packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02298">peer_socket.hpp:2298</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html_abc5bf2e627dad5d2dcfb0324853b37f7"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#abc5bf2e627dad5d2dcfb0324853b37f7">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_sent_cwnd_bytes</a></div><div class="ttdeci">size_t m_sent_cwnd_bytes</div><div class="ttdoc">The congestion window size (in bytes) that is used when the packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02328">peer_socket.hpp:2328</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html_ad513e58f4eb611c3a91d96df26f53f2c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#ad513e58f4eb611c3a91d96df26f53f2c">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_sent_time</a></div><div class="ttdeci">Fine_time_pt m_sent_time</div><div class="ttdoc">The timestamp when the packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02310">peer_socket.hpp:2310</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">flow::net_flow::Peer_socket::Sent_packet</a></div><div class="ttdoc">Metadata (and data, if retransmission is on) for a packet that has been sent one (if retransmission i...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02178">peer_socket.hpp:2182</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a28eb52fe9520497d02f6c0cd51a5fa9b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a28eb52fe9520497d02f6c0cd51a5fa9b">flow::net_flow::Peer_socket::Sent_packet::Sent_packet</a></div><div class="ttdeci">Sent_packet(bool rexmit_on, boost::shared_ptr&lt; Data_packet &gt; packet, const Sent_when &amp;sent_when)</div><div class="ttdoc">Constructs object with the given values and m_acks_after_me at zero.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00440">peer_socket.cpp:440</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a></div><div class="ttdeci">std::vector&lt; Sent_when &gt; m_sent_when</div><div class="ttdoc">Time stamps, order numbers, and other info at the times when the different attempts (including origin...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02220">peer_socket.hpp:2220</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a5b5762a1effba90f631c06ad76f9774b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a5b5762a1effba90f631c06ad76f9774b">flow::net_flow::Peer_socket::Sent_packet::m_size</a></div><div class="ttdeci">const size_t m_size</div><div class="ttdoc">Number of bytes in the Data_packet::m_data field of the sent packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02198">peer_socket.hpp:2198</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a704afa0007b8354ad78acad64d029ecf"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf">flow::net_flow::Peer_socket::Sent_packet::m_packet</a></div><div class="ttdeci">const boost::shared_ptr&lt; Data_packet &gt; m_packet</div><div class="ttdoc">If retransmission is on, this is the DATA packet itself that was sent; otherwise null.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02254">peer_socket.hpp:2254</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a7913f73b4e2f164ca51ebb505b63c1f2"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2">flow::net_flow::Peer_socket::Sent_packet::ack_count_t</a></div><div class="ttdeci">uint16_t ack_count_t</div><div class="ttdoc">Type used for m_acks_after_me.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02193">peer_socket.hpp:2193</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_affeb974bc03966744adfcda0366a50aa"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa">flow::net_flow::Peer_socket::Sent_packet::m_acks_after_me</a></div><div class="ttdeci">ack_count_t m_acks_after_me</div><div class="ttdoc">The number of times any packet with m_sent_when.back().m_order_num &gt; this-&gt;m_sent_when....</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02239">peer_socket.hpp:2239</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a></div><div class="ttdeci">std::vector&lt; Sent_when &gt; m_sent_when</div><div class="ttdoc">Time stamps, order numbers, and other info at the times when the different attempts (including origin...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02221">peer_socket.hpp:2221</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a5b5762a1effba90f631c06ad76f9774b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a5b5762a1effba90f631c06ad76f9774b">flow::net_flow::Peer_socket::Sent_packet::m_size</a></div><div class="ttdeci">const size_t m_size</div><div class="ttdoc">Number of bytes in the Data_packet::m_data field of the sent packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02199">peer_socket.hpp:2199</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a704afa0007b8354ad78acad64d029ecf"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf">flow::net_flow::Peer_socket::Sent_packet::m_packet</a></div><div class="ttdeci">const boost::shared_ptr&lt; Data_packet &gt; m_packet</div><div class="ttdoc">If retransmission is on, this is the DATA packet itself that was sent; otherwise null.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02255">peer_socket.hpp:2255</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a7913f73b4e2f164ca51ebb505b63c1f2"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2">flow::net_flow::Peer_socket::Sent_packet::ack_count_t</a></div><div class="ttdeci">uint16_t ack_count_t</div><div class="ttdoc">Type used for m_acks_after_me.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02194">peer_socket.hpp:2194</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_affeb974bc03966744adfcda0366a50aa"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa">flow::net_flow::Peer_socket::Sent_packet::m_acks_after_me</a></div><div class="ttdeci">ack_count_t m_acks_after_me</div><div class="ttdoc">The number of times any packet with m_sent_when.back().m_order_num &gt; this-&gt;m_sent_when....</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02240">peer_socket.hpp:2240</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket__info_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket__info.html">flow::net_flow::Peer_socket_info</a></div><div class="ttdoc">A data store that keeps stats about the a Peer_socket connection.</div><div class="ttdef"><b>Definition:</b> <a href="info_8hpp_source.html#l00455">info.hpp:456</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket__info_html_a02c61270ec35141affc5bb9f6edc5cd0"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket__info.html#a02c61270ec35141affc5bb9f6edc5cd0">flow::net_flow::Peer_socket_info::m_snd</a></div><div class="ttdeci">Peer_socket_send_stats m_snd</div><div class="ttdoc">Stats for outgoing direction of traffic. As opposed to the other m_snd_* members, this typically accu...</div><div class="ttdef"><b>Definition:</b> <a href="info_8hpp_source.html#l00511">info.hpp:511</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket__info_html_a05abba2bde50995af42cd6cf02d0b167"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket__info.html#a05abba2bde50995af42cd6cf02d0b167">flow::net_flow::Peer_socket_info::m_node_opts</a></div><div class="ttdeci">Node_options m_node_opts</div><div class="ttdoc">Per-node options currently set on the socket's Node.</div><div class="ttdef"><b>Definition:</b> <a href="info_8hpp_source.html#l00651">info.hpp:651</a></div></div>
@@ -6959,7 +6965,7 @@
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/peer__socket_8hpp.html b/doc/flow_doc/generated/html_full/peer__socket_8hpp.html
index f604faf68..73a324df0 100644
--- a/doc/flow_doc/generated/html_full/peer__socket_8hpp.html
+++ b/doc/flow_doc/generated/html_full/peer__socket_8hpp.html
@@ -92,6 +92,7 @@
 <code>#include &lt;boost/shared_ptr.hpp&gt;</code><br />
 <code>#include &lt;boost/enable_shared_from_this.hpp&gt;</code><br />
 <code>#include &lt;boost/move/unique_ptr.hpp&gt;</code><br />
+<code>#include &lt;type_traits&gt;</code><br />
 </div>
 <p><a href="peer__socket_8hpp_source.html">Go to the source code of this file.</a></p>
 <table class="memberdecls">
@@ -130,7 +131,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
 </body>
 </html>
diff --git a/doc/flow_doc/generated/html_full/peer__socket_8hpp_source.html b/doc/flow_doc/generated/html_full/peer__socket_8hpp_source.html
index 7d41901e9..fb31b432c 100644
--- a/doc/flow_doc/generated/html_full/peer__socket_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/peer__socket_8hpp_source.html
@@ -108,2621 +108,2616 @@
 <div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span><span class="preprocessor">#include &lt;boost/shared_ptr.hpp&gt;</span></div>
 <div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="preprocessor">#include &lt;boost/enable_shared_from_this.hpp&gt;</span></div>
 <div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="preprocessor">#include &lt;boost/move/unique_ptr.hpp&gt;</span></div>
-<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span> </div>
-<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div>
-<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>{</div>
-<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="comment">// Types.</span></div>
-<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="comment"></span> </div>
-<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span><span class="comment"> * A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes and</span></div>
-<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="comment"> * reliability support.</span></div>
-<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="comment"> * Reliability is enabled or disabled via a socket option, Peer_socket_options::m_st_rexmit_on,</span></div>
-<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="comment"> * at socket creation.  Use unreliable mode with care -- see send() method doc header for details.</span></div>
-<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="comment"> * ### Life cycle of a Peer_socket ###</span></div>
-<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="comment"> * A given Peer_socket can arise either by connecting to</span></div>
-<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="comment"> * Server_socket on a Node (Node::connect() or Node::sync_connect()), or by listening on a</span></div>
-<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="comment"> * Node&#39;s Server_socket and accepting such a connection (Server_socket::accept() or</span></div>
-<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="comment"> * Server_socket::sync_accept()).  In all cases, Node or Server_socket generates a new Peer_socket</span></div>
-<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="comment"> * and returns it (factory pattern).  Peer_socket is not instantiable otherwise.  A Peer_socket</span></div>
-<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="comment"> * cannot be deleted explicitly by the user and will only be returned via `boost::shared_ptr&lt;&gt;`; when</span></div>
-<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="comment"> * both the Node and all user code no longer refers to it, the Peer_socket will be destroyed.</span></div>
-<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span><span class="comment"> * Once a `net_flow` user has a Peer_socket object, that object represents a socket in one of the</span></div>
-<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span><span class="comment"> * following basic states:</span></div>
-<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span><span class="comment"> *   - Open.</span></div>
-<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span><span class="comment"> *     - Sub-states:</span></div>
-<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span><span class="comment"> *       - Connecting.  (Never Writable, never Readable.)</span></div>
-<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span><span class="comment"> *       - Connected.  (May be Writable, may be Readable.)</span></div>
-<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span><span class="comment"> *       - Disconnecting.  (May be Readable, never Writable.)</span></div>
-<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span><span class="comment"> *   - Closed.</span></div>
-<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="comment"> *     - Socket can neither read nor write.</span></div>
-<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="comment"> * Open.Connecting means means Node initiated a connect to the given server, and this is in</span></div>
-<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span><span class="comment"> * progress. Open.Connected means the connection to the other Node is fully functional.</span></div>
-<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span><span class="comment"> * Open.Disconnecting means either our side or the other side has initiated a clean or abrupt</span></div>
-<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="comment"> * disconnect, but it is not yet entirely finished (background handshaking is happening, you have</span></div>
-<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="comment"> * not read all available data or sent all queued data, etc.).</span></div>
-<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="comment"> * In either case, reading and writing may or may not be possible at a given time, depending on the</span></div>
-<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span><span class="comment"> * state of the internal buffers and the data having arrived on the logical connection.  Thus all</span></div>
-<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="comment"> * Open sub-states can and often should be treated the same way in a typical Flow-protocol-using algorithm:</span></div>
-<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><span class="comment"> * simply determine when the Peer_socket is Readable, and read; and similarly for Writable and</span></div>
-<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="comment"> * write.  Thus the sub-states are distinguished for informational/diagnostic purposes only, as user</span></div>
-<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="comment"> * reading/writing logic in these states should usually be identical.</span></div>
-<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="comment"> * @todo Closing connection considerations.  May implement closing only via timeouts at first (as</span></div>
-<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span><span class="comment"> * opposed to explicit closing).  Below text refers to `close_final()` and `close_start()`, but those</span></div>
-<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="comment"> * are just ideas and may be replaced with timeout, or nothing.  At this time, the only closing</span></div>
-<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="comment"> * supported is abrupt close due to error or abrupt close via close_abruptly().</span></div>
-<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment"> * Closed means that the Peer_socket has become disconnected, and no data can possibly be</span></div>
-<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment"> * received or sent, AND that Node has no more background internal operations to perform and has</span></div>
-<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="comment"> * disowned the Peer_socket.  In other words, a Closed Peer_socket is entirely dead.</span></div>
-<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="comment"> * Exactly the following state transitions are possible for a given Peer_socket returned by Node:</span></div>
-<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="comment"> *    - start =&gt; Closed</span></div>
-<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment"> *    - start =&gt; Open</span></div>
-<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="comment"> *    - Open =&gt; Closed</span></div>
-<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment"> * Note, in particular, that Closed is final; socket cannot move from Closed to</span></div>
-<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="comment"> * Open.  If after an error or valid disconnection you want to reestablish a</span></div>
-<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment"> * connection, obtain a new Peer_socket from Node&#39;s factories.  Rationale (subject to change):</span></div>
-<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="comment"> * this cuts down on state having to be tracked inside a Peer_socket, while the interface becomes</span></div>
-<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span><span class="comment"> * simpler without much impact on usability.  Anti-rationale: contradicts BSD socket and boost.asio</span></div>
-<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="comment"> * established practices; potentially more resource-intensive/slower in the event of errors and</span></div>
-<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="comment"> * disconnects.  Why IMO rationale &gt; anti-rationale: it&#39;s simpler, and the potential problems do not</span></div>
-<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="comment"> * appear immediately serious; added statefulness can be added later if found desirable.</span></div>
-<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment"> * Receving, sending, and buffers: Peer_socket, like a TCP socket, has a Receive buffer (a/k/a</span></div>
-<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment"> * FIFO queue of bytes) of some maximum size and a Send buffer (a/k/a FIFO queue of bytes) of some</span></div>
-<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="comment"> * maximum size. They are typically not directly exposed via the interface, but their existence</span></div>
-<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="comment"> * affects documented behavior.  I formally describe them here, but generally they work similarly to</span></div>
-<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment"> * TCP socket Send/Receive buffers.</span></div>
-<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment"> * The Receive buffer: Contains bytes asynchronously received on the connection that have not yet</span></div>
-<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment"> * been removed with a `*receive()` method.  Any bytes that asynchronously arrive on the connection are</span></div>
-<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment"> * asynchronously stored to the buffer on the other side of the buffer in a queued fashion.</span></div>
-<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment"> * The Send buffer: Contains bytes intended to be asynchronously sent on the connection that have</span></div>
-<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment"> * been placed there by a `*send()` method but not yet sent on the connection.  Any bytes that are</span></div>
-<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment"> * asynchronously sent on the connection are asynchronously removed from the buffer on the other</span></div>
-<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment"> * side of the buffer in a queued fashion.</span></div>
-<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment"> * With that in mind, here are the definitions of Readable and Writable while state is Open:</span></div>
-<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="comment"> *   - Readable &lt;=&gt; Data available in internal Receive buffer, and user has not explicitly announced</span></div>
-<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="comment"> *                  via `close_final()` they&#39;re not interested in reading further.</span></div>
-<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment"> *   - Writable &lt;=&gt; Space for data available in internal Send buffer, and the state is Open.Connected.</span></div>
-<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment"> * Note that neither definition really cares about the state of the network connection (e.g., could</span></div>
-<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment"> * bytes actually be sent over the network at the moment?).  There is one caveat: A</span></div>
-<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment"> * socket is not Writable until Open.Connecting state is transitioned away from; this prevents user</span></div>
-<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment"> * from buffering up send data before the connection is ready.  (Allowing that would not necessarily</span></div>
-<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment"> * be wrong, but I&#39;m taking a cue from BSD socket semantics on this, as they seem to be convenient.)</span></div>
-<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="comment"> * In Open, the following archetypal operations are provided.  (In Closed all</span></div>
-<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment"> * immediately fail; in Open.Disconnecting some immediately fail if `close*()` has been called.)  Let</span></div>
-<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment"> * R be the current size of data in the Receive buffer, and S be the available space for data in the</span></div>
-<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="comment"> * Send buffer.</span></div>
-<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment"> *   - `receive(N)`.  If Readable, return to caller `min(N, R)` oldest data to have been received from</span></div>
-<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="comment"> *     the other side, and remove them from Receive buffer.  Otherwise do nothing.</span></div>
-<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span><span class="comment"> *   - `send(N)`.  If Writable, take from caller `min(N, S)` data to be appended to the Send</span></div>
-<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="comment"> *     buffer and, when possible, sent to the other side.  Otherwise do nothing.</span></div>
-<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="comment"> *   - `sync_receive(N)`.  If Readable, `receive(N)`.  Otherwise sleep until Readable, then `receive(N)`.</span></div>
-<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="comment"> *   - `sync_send(N)`.  If Writable, `send(N)`.  Otherwise sleep until Writable, then `send(N)`.</span></div>
-<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span><span class="comment"> * These are similar to TCP Receive and Send APIs in non-blocking mode, and TCP Receive and Send APIs in</span></div>
-<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="comment"> * blocking mode, respectively.  There may be other similarly themed methods, but all use these as</span></div>
-<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span><span class="comment"> * semantic building blocks.</span></div>
-<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span><span class="comment"> * To understand the order of events, one can think of a disconnect-causing event (like a graceful</span></div>
-<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span><span class="comment"> * close initiation from the remote socket) as a piece of data itself.  Thus, for example, if 5</span></div>
-<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span><span class="comment"> * bytes are received and placed into the Receive buffer without being read by the user, and then a</span></div>
-<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment"> * connection close is detected, the socket will be Readable until the 5 bytes have been</span></div>
-<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment"> * receive()ed, and the next receive() (or send()) would yield the error, since that&#39;s the order</span></div>
-<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="comment"> * things happened.  Similarly, suppose you&#39;ve sent 5 bytes, but they haven&#39;t been yet</span></div>
-<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span><span class="comment"> * sent over the wire and are sitting in the Send buffer.  Then you trigger a graceful connection close.</span></div>
-<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="comment"> * First the 5 bytes will be sent if possible, and then the closing procedure will actually begin.</span></div>
-<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="comment"> * Abrupt closes such as connection resets may force both buffers to be immediately emptied without</span></div>
-<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span><span class="comment"> * giving to the user or writing to the other side, so that the above rule does not have to apply.</span></div>
-<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment"> * Typically a connection reset means the socket is immediately unusable no matter what was in the</span></div>
-<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="comment"> * buffers at the time, per BSD socket semantics.</span></div>
-<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span><span class="comment"> * ### Efficiently reading/writing ###</span></div>
-<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span><span class="comment"> * The `sync_*`() methods are efficient, in that they use no processor</span></div>
-<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span><span class="comment"> * cycles until Readable or Writable is achieved (i.e., they sleep until that point).  The</span></div>
-<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span><span class="comment"> * non-blocking versions don&#39;t sleep/block, however.  For a program using them to be efficient it</span></div>
-<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span><span class="comment"> * should sleep until Readable or Writable and only then call receive()/send(), when data are</span></div>
-<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span><span class="comment"> * certainly available for immediate reading or writing.  Moreover, a complex program is likely to</span></div>
-<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span><span class="comment"> * want to perform this sleep-and-conditional-wake on a set of several Peer_socket objects simultaneously</span></div>
-<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span><span class="comment"> * (similarly to `select()`, `epoll*()`, etc.).  Use class Event_set for this purpose.</span></div>
-<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span><span class="comment"> * ### Thread safety ###</span></div>
-<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span><span class="comment"> * Same as for Node.  (Briefly: all operations safe for simultaneous execution on</span></div>
-<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span><span class="comment"> * separate or the same object.)</span></div>
-<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span><span class="comment"> * @internal</span></div>
-<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span><span class="comment"> * Implementation notes</span></div>
-<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span><span class="comment"> * --------------------</span></div>
-<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span><span class="comment"> * While to a user a Peer_socket appears as a nearly self-sufficient object (i.e., you can do things</span></div>
-<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span><span class="comment"> * like `s-&gt;send()`, which means &#39;socket `s`, send some data!&#39;&#39;), the most reasonable way to internally</span></div>
-<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span><span class="comment"> * implement this is to have Node contain the logic behind a Peer_socket (and how it works together</span></div>
-<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span><span class="comment"> * with other Peer_socket objects and other internal infrastructure).  Thus Node is the class with all of</span></div>
-<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span><span class="comment"> * the logic behind (for example) `s-&gt;send()`.  Peer_socket then, privately, is not too much more than a</span></div>
-<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span><span class="comment"> * collection of data (like a `struct` almost) to help Node.</span></div>
-<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span><span class="comment"> * Therefore Peer_socket provides a clean object-oriented public interface to the user but, on the</span></div>
-<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="comment"> * implementation side, is basically a data store (with Node as `friend`) and forwards the logic to</span></div>
-<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span><span class="comment"> * the originating Node.  One idea to make this dichotomy more cleanly expressed (e.g., without</span></div>
-<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment"> * `friend`) was to make Peer_socket a pure interface and have Node produce `Peer_socket_impl`</span></div>
-<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment"> * objects, where `Peer_socket_impl` implements Peer_socket and is itself private to the user (a</span></div>
-<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span><span class="comment"> * classic factory pattern).  Unfortunately defining function templates such as `send&lt;Buffers&gt;()`</span></div>
-<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment"> * (where `Buffers` is an arbitrary `Buffers` concept model) as pure `virtual` functions is not really</span></div>
-<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment"> * possible in C++.  Since such a templated interface can be highly convenient (see boost.asio with</span></div>
-<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span><span class="comment"> * its seamless support for buffers and buffer sequences of most types, including scatter-gather),</span></div>
-<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="comment"> * the usefulness of the interface trumps implementation beauty.</span></div>
-<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="comment"> * To prevent node.cpp from being unmanageably large (and also because it makes sense),</span></div>
-<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span><span class="comment"> * implementations for Node methods that deal only with an individual Peer_socket reside in</span></div>
-<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span><span class="comment"> * peer_socket.cpp (even though they are members of Node, since, again, the logic is all forwarded to Node).</span></div>
-<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span><span class="comment"> * @todo Rename `State` and `Open_sub_state` to `Phase` and `Open_sub_phase` respectively; and</span></div>
-<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span><span class="comment"> * `Int_state` to `State`.  Explain difference between phases (application-layer, user-visible and used</span></div>
-<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span><span class="comment"> * close to application layer) and states (transport layer, internal).</span></div>
-<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span><span class="comment"> * @todo Look into a way to defeat the need for boiler-plate trickery -- with low but non-zero perf cost --</span></div>
-<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span><span class="comment"> * involving `*_socket`-vs-`Node` circular references in method templates, such as the way</span></div>
-<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span><span class="comment"> * Peer_socket::send() and Peer_socket::receive() internally make `Function&lt;&gt;`s before forwarding to the core</span></div>
-<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span><span class="comment"> * in Node.  Can this be done with `.inl` files?  Look into how Boost internally uses `.inl` files; this could</span></div>
-<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span><span class="comment"> * inspire a solution... or not.</span></div>
-<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html">  215</a></span><span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket.html">Peer_socket</a> :</div>
-<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1util_1_1Null__interface.html">util::Null_interface</a>,</div>
-<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span>  <span class="comment">// Endow us with shared_ptr&lt;&gt;s ::Ptr and ::Const_ptr (syntactic sugar).</span></div>
-<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html">util::Shared_ptr_alias_holder</a>&lt;boost::shared_ptr&lt;Peer_socket&gt;&gt;,</div>
-<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span>  <span class="comment">// Allow access to Ptr(this) from inside Peer_socket methods.  Just call shared_from_this().</span></div>
-<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span>  <span class="keyword">public</span> boost::enable_shared_from_this&lt;Peer_socket&gt;,</div>
-<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1log_1_1Log__context.html">log::Log_context</a>,</div>
-<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>  <span class="keyword">private</span> boost::noncopyable</div>
-<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span>{</div>
-<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span><span class="keyword">public</span>:</div>
-<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span>  <span class="comment">// Types.</span></div>
-<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span><span class="comment"></span> </div>
-<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span><span class="comment">  /// State of a Peer_socket.</span></div>
-<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">  228</a></span><span class="comment"></span>  <span class="keyword">enum class</span> <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">State</a></div>
-<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>  {<span class="comment"></span></div>
-<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span><span class="comment">    /// Future reads or writes may be possible.  A socket in this state may be Writable or Readable.</span></div>
-<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span><span class="comment"></span>    S_OPEN,<span class="comment"></span></div>
-<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span><span class="comment">    /// Neither future reads nor writes are possible, AND Node has disowned the Peer_socket.</span></div>
-<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span><span class="comment"></span>    S_CLOSED</div>
-<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>  };</div>
-<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span><span class="comment"></span> </div>
-<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span><span class="comment">  /// The sub-state of a Peer_socket when state is State::S_OPEN.</span></div>
-<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">  237</a></span><span class="comment"></span>  <span class="keyword">enum class</span> <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">Open_sub_state</a></div>
-<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span>  {<span class="comment"></span></div>
-<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span><span class="comment">    /**</span></div>
-<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span><span class="comment">     * This Peer_socket was created through an active connect (Node::connect() and the like), and</span></div>
-<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span><span class="comment">     * the connection to the remote Node is currently being negotiated by this socket&#39;s Node.</span></div>
-<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="comment">     * A socket in this state may be Writable but cannot be Readable.  However, except for</span></div>
-<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span><span class="comment">     * diagnostic purposes, this state should generally be treated the same as S_CONNECTED.</span></div>
-<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="comment">     */</span></div>
-<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span>    S_CONNECTING,</div>
-<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span><span class="comment"></span> </div>
-<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span><span class="comment">    /**</span></div>
-<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span><span class="comment">     * This Peer_socket was created through a passive connect (Node::accept() and the like) or an</span></div>
-<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span><span class="comment">     * active connect (Node::connect() and the like), and the connection is (as far this socket&#39;s</span></div>
-<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span><span class="comment">     * Node knows) set up and functioning.  A socket in this state may be Writable or Readable.</span></div>
-<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span><span class="comment">     */</span></div>
-<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span>    S_CONNECTED,</div>
-<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span><span class="comment"></span> </div>
-<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span><span class="comment">    /**</span></div>
-<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span><span class="comment">     * This Peer_socket was created through a passive connect (Node::accept() and the like) or an</span></div>
-<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span><span class="comment">     * active connect (Node::connect() and the like), but since then either an active close,</span></div>
-<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><span class="comment">     * passive close, or an error has begun to close the connection, but data may still possibly</span></div>
-<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span><span class="comment">     * arrive and be Readable; also data may have been &quot;sent&quot; but still sitting in the Send buffer</span></div>
-<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="comment">     * and needs to be sent over the network.  A socket in this state may be Readable but cannot</span></div>
-<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span><span class="comment">     * be Writable.</span></div>
-<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span><span class="comment">     *</span></div>
-<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span><span class="comment">     * This implies that a non-S_CLOSED socket may be, at a lower level, disconnected.  For</span></div>
-<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span><span class="comment">     * example, say there are 5 bytes in the Receive buffer, and the other side sends a graceful</span></div>
-<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span><span class="comment">     * disconnect packet to this socket.  This means the connection is finished, but the user can</span></div>
-<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span><span class="comment">     * still receive() the 5 bytes (without blocking).  Then state will remain</span></div>
-<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span><span class="comment">     * S_OPEN.S_DISCONNECTING until the last of the 5 bytes is received (gone from the buffer); at</span></div>
-<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span><span class="comment">     * this point state may change to S_CLOSED (pending any other work Node must do to be able to</span></div>
-<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span><span class="comment">     * disown the socket).</span></div>
-<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span><span class="comment">     */</span></div>
-<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span>    S_DISCONNECTING</div>
-<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span>  }; <span class="comment">// enum class Open_sub_state</span></div>
-<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span> </div>
-<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span><span class="comment"></span> </div>
-<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span><span class="comment">  /// Boring `virtual` destructor.  Note that deletion is to be handled exclusively via `shared_ptr`, never explicitly.</span></div>
-<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span><span class="comment"></span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a729af2cb3465b67b811d8e9438b5af5d">~Peer_socket</a>() <span class="keyword">override</span>;</div>
-<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span> </div>
-<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span><span class="comment"></span> </div>
-<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span><span class="comment">   * Current State of the socket.</span></div>
-<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span><span class="comment">   * @param open_sub_state</span></div>
-<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span><span class="comment">   *        Ignored if null.  Otherwise, if and only if State::S_OPEN is returned, `*open_sub_state` is set to</span></div>
-<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span><span class="comment">   *        the current sub-state of `S_OPEN`.</span></div>
-<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span><span class="comment">   * @return Current main state of the socket.</span></div>
-<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span>  <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">State</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#af982953b5136c1df488066eacc293a78">state</a>(<a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">Open_sub_state</a>* open_sub_state = 0) <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span><span class="comment"></span> </div>
-<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span><span class="comment">   * Node that produced this Peer_socket.</span></div>
-<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span><span class="comment">   * @return Pointer to (guaranteed valid) Node; null if state is State::S_CLOSED.</span></div>
-<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Node.html">Node</a>* <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#aa9e7e1be830c901bc7348742e79ba2e7">node</a>() <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span><span class="comment"></span> </div>
-<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span><span class="comment">   * Intended other side of the connection (regardless of success, failure, or current State).</span></div>
-<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span><span class="comment">   * For a given Peer_socket, this will always return the same value, even if state is</span></div>
-<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span><span class="comment">   * State::S_CLOSED.</span></div>
-<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span><span class="comment">   * @return See above.</span></div>
-<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span>  <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a5e423a9fd18a45cc7cc5fc34af29161e">remote_endpoint</a>() <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span><span class="comment"></span> </div>
-<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span><span class="comment">   * The local Flow-protocol port chosen by the Node (if active or passive open) or user (if passive open) for</span></div>
-<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span><span class="comment">   * this side of the connection.  For a given Peer_socket, this will always return the same value,</span></div>
-<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span><span class="comment">   * even if state is State::S_CLOSED.  However, when state is State::S_CLOSED, the port may be unused or</span></div>
-<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span><span class="comment">   * taken by another socket.</span></div>
-<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span><span class="comment">   * @return See above.</span></div>
-<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span>  <a class="code hl_typedef" href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow_port_t</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a7af387476aa0bdc6b3906c153d824acb">local_port</a>() <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span><span class="comment"></span> </div>
-<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span><span class="comment">   * Obtains the serialized connect metadata, as supplied by the user during the connection handshake.</span></div>
-<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span><span class="comment">   * If this side initiated the connection (Node::connect() and friends), then this will equal what</span></div>
-<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span><span class="comment">   * was passed to the connect_with_metadata() (or similar) method.  More likely, if this side</span></div>
-<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span><span class="comment">   * accepted the connection (Server_socket::accept() and friends), then this will equal what the</span></div>
-<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span><span class="comment">   * user on the OTHER side passed to connect_with_metadata() or similar.</span></div>
-<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span><span class="comment">   * @note It is up to the user to deserialize the metadata portably.  One recommended convention is to</span></div>
-<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span><span class="comment">   *       use `boost::endian::native_to_little()` (and similar) before connecting; and</span></div>
-<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span><span class="comment">   *       on the other side use the reverse (`boost::endian::little_to_native()`) before using the value.</span></div>
-<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span><span class="comment">   *       Packet dumps will show a flipped (little-endian) representation, while with most platforms the conversion</span></div>
-<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span><span class="comment">   *       will be a no-op at compile time.  Alternatively use `native_to_big()` and vice-versa.</span></div>
-<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span><span class="comment">   * @note If a connect() variant without `_with_metadata` in the name was used, then the metadata are</span></div>
-<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span><span class="comment">   *       composed of a single byte with the zero value.</span></div>
-<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span><span class="comment">   * @param buffer</span></div>
-<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span><span class="comment">   *        A buffer to copy the metadata into.</span></div>
-<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
-<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span><span class="comment">   * @return The size of the copied metadata.</span></div>
-<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a0c99637726b3c2b2ff1dbf14c6c92752">get_connect_metadata</a>(<span class="keyword">const</span> boost::asio::mutable_buffer&amp; buffer,</div>
-<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span>                              <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0) <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span><span class="comment"></span> </div>
-<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span><span class="comment">   * Sends (adds to the Send buffer) the given bytes of data up to a maximum internal buffer size;</span></div>
-<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span><span class="comment">   * and asynchronously sends them to the other side.  The data given is copied into `*this`, in the order</span></div>
-<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span><span class="comment">   * given.  Only as many bytes as possible without the Send buffer size exceeding a certain max are</span></div>
-<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span><span class="comment">   * copied.</span></div>
-<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span><span class="comment">   * The method does not block.  Data are then sent asynchronously (in the background).</span></div>
-<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span><span class="comment">   * Method does nothing except possibly logging if there are no bytes in data.</span></div>
-<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span><span class="comment">   * ### Error handling ###</span></div>
-<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span><span class="comment">   * These are the possible outcomes.</span></div>
-<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span><span class="comment">   *   1. There is no space in the Send buffer (usually due to network congestion).  Socket not</span></div>
-<div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span><span class="comment">   *      Writable.  0 is returned; `*err_code` is set to success unless null; no data buffered.</span></div>
-<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span><span class="comment">   *   2. The socket is not yet fully connected (`S_OPEN+S_CONNECTING` state).  Socket not</span></div>
-<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span><span class="comment">   *      Writable.  0 is returned; `*err_code` is set to success unless null; no data buffered.</span></div>
-<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span><span class="comment">   *   3. There is space in the Send buffer, and socket connection is open (`S_OPEN+S_CONNECTED`).</span></div>
-<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span><span class="comment">   *      Socket Writable.  &gt;= 1 is returned; `*err_code` is set to success; data buffered.</span></div>
-<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span><span class="comment">   *   4. The operation cannot proceed due to an error.  0 is returned; `*err_code` is set to the</span></div>
-<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span><span class="comment">   *      specific error unless null; no data buffered.  (If `err_code` null, Runtime_error thrown.)</span></div>
-<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span><span class="comment">   * The semantics of -3- (the success case) are as follows.  N bytes will be copied into Send</span></div>
-<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span><span class="comment">   * buffer from the start of the Const_buffer_sequence data.  These N bytes may be spread across 1</span></div>
-<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span><span class="comment">   * or more buffers in that sequence; the subdivision structure of the sequence of bytes into</span></div>
-<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span><span class="comment">   * buffers has no effect on what will be buffered in Send buffer (e.g., &quot;data&quot; could be N+ 1-byte</span></div>
-<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span><span class="comment">   * buffers, or one N+-byte buffer -- the result would be the same).  N equals the smaller of: the</span></div>
-<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span><span class="comment">   * available space in the Send buffer; and `buffer_size(data)`.  We return N.</span></div>
-<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span><span class="comment">   * ### Reliability and ordering guarantees: if the socket option rexmit-on is enabled ###</span></div>
-<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span><span class="comment">   * Reliability and ordering are guaranteed, and there is no notion of message boundaries.  There is no possibility</span></div>
-<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span><span class="comment">   * of data duplication.  In other words full stream-of-bytes functionality is provided, as in TCP.</span></div>
-<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span><span class="comment">   * ### Reliability and ordering guarantees: if the socket option rexmit-on is NOT enabled ###</span></div>
-<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span><span class="comment">   * NO reliability guarantees are given, UNLESS *ALL* calls to send() (and other `*send`() methods)</span></div>
-<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span><span class="comment">   * satisfy the condition: &#39;`buffer_size(data)` is a multiple of `sock-&gt;max_block_size()`&#39;; AND all</span></div>
-<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span><span class="comment">   * calls to receive() (and other `*receive()` methods) on the OTHER side satisfy the condition:</span></div>
-<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span><span class="comment">   * &#39;`buffer_size(target)` is a multiple of `sock-&gt;max_block_size()`.&#39;  If and only if these guidelines</span></div>
-<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span><span class="comment">   * are followed, and there is no connection closure, the following reliability guarantee is made:</span></div>
-<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span><span class="comment">   * Let a &quot;block&quot; be a contiguous chunk of bytes in a &quot;data&quot; buffer sequence immediately following</span></div>
-<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span><span class="comment">   * another &quot;block,&quot; except the first &quot;block&quot; in a connection, which begins with the first byte of</span></div>
-<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span><span class="comment">   * the &quot;data&quot; buffer sequence passed to the first `*send()` call on that connection.  Then: Each</span></div>
-<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span><span class="comment">   * given block will either be available to `*receive()` on the other side exactly once and without</span></div>
-<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span><span class="comment">   * corruption; or not available to `*receive()` at all.  Blocks may arrive in a different order than</span></div>
-<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span><span class="comment">   * specified here, including with respect to other `*send()` calls performed before or after this</span></div>
-<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span><span class="comment">   * one.  In other words, these are guaranteed: block boundary preservation, protection against</span></div>
-<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span><span class="comment">   * corruption, protection again duplication.  These are not guaranteed: order preservation,</span></div>
-<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span><span class="comment">   * delivery.  Informally, the latter factors are more likely to be present on higher quality</span></div>
-<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span><span class="comment">   * network paths.</span></div>
-<div class="line"><a id="l00388" name="l00388"></a><span class="lineno">  388</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span><span class="comment">   * @tparam Const_buffer_sequence</span></div>
-<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span><span class="comment">   *         Type that models the boost.asio `ConstBufferSequence` concept (see Boost docs).</span></div>
-<div class="line"><a id="l00391" name="l00391"></a><span class="lineno">  391</span><span class="comment">   *         Basically, it&#39;s any container with elements convertible to `boost::asio::const_buffer`;</span></div>
-<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span><span class="comment">   *         and bidirectional iterator support.  Examples: `vector&lt;const_buffer&gt;`, `list&lt;const_buffer&gt;`.</span></div>
-<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span><span class="comment">   *         Why allow `const_buffer` instead of, say, `Sequence` of bytes?  Same reason as boost.asio&#39;s</span></div>
-<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span><span class="comment">   *         send functions: it allows a great amount of flexibility without sacrificing performance,</span></div>
-<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span><span class="comment">   *         since `boost::asio::buffer()` function can adapt lots of different objects (arrays,</span></div>
-<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span><span class="comment">   *         `vector`s, `string`s, and more -- composed of bytes, integers, and more).</span></div>
-<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span><span class="comment">   * @param data</span></div>
-<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span><span class="comment">   *        Buffer sequence from which a stream of bytes to add to Send buffer will be obtained.</span></div>
-<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
-<div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span><span class="comment">   *        Error implies that neither this send() nor any subsequent `*send()` on this socket</span></div>
-<div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span><span class="comment">   *        will succeeed.  (In particular a clean disconnect is an error.)</span></div>
-<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span><span class="comment">   * @return Number of bytes (possibly zero) added to buffer.  Always 0 if `bool(*err_code) == true` when</span></div>
-<div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span><span class="comment">   *         send() returns.</span></div>
-<div class="line"><a id="l00405" name="l00405"></a><span class="lineno">  405</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
-<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#af90b656d7e0b7e746b8beb4e24717cec">send</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
-<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span><span class="comment"></span> </div>
-<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span><span class="comment">   * Blocking (synchronous) version of send().  Acts just like send(), except that if Socket is not</span></div>
-<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span><span class="comment">   * immediately Writable (i.e., send() would return 0 and no error), waits until it is Writable</span></div>
-<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span><span class="comment">   * (send() would return either &gt;0, or 0 and an error) and returns `send(data, err_code)`.  If a</span></div>
-<div class="line"><a id="l00413" name="l00413"></a><span class="lineno">  413</span><span class="comment">   * timeout is specified, and this timeout expires before socket is Writable, acts like send()</span></div>
-<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span><span class="comment">   * executed on an un-Writable socket.</span></div>
-<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span><span class="comment">   * ### Error handling ###</span></div>
-<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span><span class="comment">   * These are the possible outcomes (assuming there are data in the argument `data`).</span></div>
-<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span><span class="comment">   *   1. There is space in the Send buffer, and socket connection</span></div>
-<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span><span class="comment">   *      is open (`S_OPEN+S_CONNECTED`).  Socket Writable.  &gt;= 1 is returned; `*err_code` is set to</span></div>
-<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span><span class="comment">   *      success unless null; data buffered.</span></div>
-<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span><span class="comment">   *   2. The operation cannot proceed due to an error.  0 is returned; `*err_code` is set to the</span></div>
-<div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span><span class="comment">   *      specific error unless null; no data buffered.  (If `err_code` null, Runtime_error thrown.)</span></div>
-<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span><span class="comment">   *      The code error::Code::S_WAIT_INTERRUPTED means the wait was interrupted</span></div>
-<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span><span class="comment">   *      (similarly to POSIX&#39;s `EINTR`).</span></div>
-<div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span><span class="comment">   *   3. Neither condition above is detected before the timeout expires (if provided).</span></div>
-<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span><span class="comment">   *      Output semantics are the same as in 2, with the specific code error::Code::S_WAIT_USER_TIMEOUT.</span></div>
-<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span><span class="comment">   * The semantics of -1- (the success case) equal those of send().</span></div>
-<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span><span class="comment">   * Note that it is NOT possible to return 0 and no error.</span></div>
-<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span><span class="comment">   * Tip: Typical types you might use for `max_wait`: `boost::chrono::milliseconds`,</span></div>
-<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span><span class="comment">   * `boost::chrono::seconds`, `boost::chrono::high_resolution_clock::duration`.</span></div>
-<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00435" name="l00435"></a><span class="lineno">  435</span><span class="comment">   * @see The version of sync_send() with no timeout.</span></div>
-<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span><span class="comment">   * @tparam Rep</span></div>
-<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span><span class="comment">   *         See boost::chrono::duration documentation (and see above tip).</span></div>
-<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span><span class="comment">   * @tparam Period</span></div>
-<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span><span class="comment">   *         See boost::chrono::duration documentation (and see above tip).</span></div>
-<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span><span class="comment">   * @tparam Const_buffer_sequence</span></div>
-<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span><span class="comment">   *         See send().</span></div>
-<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span><span class="comment">   * @param data</span></div>
-<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span><span class="comment">   *        See send().</span></div>
-<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span><span class="comment">   * @param max_wait</span></div>
-<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span><span class="comment">   *        The maximum amount of time from now to wait before giving up on the wait and returning.</span></div>
-<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span><span class="comment">   *        `&quot;duration&lt;Rep, Period&gt;::max()&quot;` will eliminate the time limit and cause indefinite wait</span></div>
-<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span><span class="comment">   *        (i.e., no timeout).</span></div>
-<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
-<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span><span class="comment">   *        Error, except `WAIT_INTERRUPTED` or `WAIT_USER_TIMEOUT`, implies that</span></div>
-<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span><span class="comment">   *        neither this send() nor any subsequent send() on this socket</span></div>
-<div class="line"><a id="l00452" name="l00452"></a><span class="lineno">  452</span><span class="comment">   *        will succeeed.  (In particular a clean disconnect is an error.)</span></div>
-<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span><span class="comment">   * @return Number of bytes (possibly zero) added to Send buffer.  Always 0 if `bool(*err_code) == true`</span></div>
-<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span><span class="comment">   *         when sync_send() returns.</span></div>
-<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period, <span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
-<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">sync_send</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data,</div>
-<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span>                   <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
-<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span><span class="comment"></span> </div>
-<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span><span class="comment">   * `sync_send()` operating in `null_buffers` mode, wherein -- if Writable state is reached -- the actual data</span></div>
-<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span><span class="comment">   * are not moved out of any buffer, leaving that to the caller to do if desired.  Hence, this is a way of waiting</span></div>
-<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span><span class="comment">   * for Writable state that could be more concise in some situations than Event_set::sync_wait().</span></div>
-<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span><span class="comment">   * ### Error handling ###</span></div>
-<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span><span class="comment">   * These are the possible outcomes:</span></div>
-<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span><span class="comment">   *   1. There is space in the Send buffer; and socket is fully connected</span></div>
-<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span><span class="comment">   *      (`S_OPEN+S_CONNECTED`).  Socket</span></div>
-<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span><span class="comment">   *      Writable.  `true` is returned; `*err_code` is set to success unless null.</span></div>
-<div class="line"><a id="l00470" name="l00470"></a><span class="lineno">  470</span><span class="comment">   *   2. The operation cannot proceed due to an error.  `false` is returned; `*err_code` is set to the</span></div>
-<div class="line"><a id="l00471" name="l00471"></a><span class="lineno">  471</span><span class="comment">   *      specific error unless null.  `*err_code == S_WAIT_INTERRUPTED` means the wait was</span></div>
-<div class="line"><a id="l00472" name="l00472"></a><span class="lineno">  472</span><span class="comment">   *      interrupted (similarly to POSIX&#39;s `EINTR`).  (If `err_code` null, Runtime_error thrown.)</span></div>
-<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span><span class="comment">   *   3. Neither condition above is detected before the timeout expires (if provided).</span></div>
-<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span><span class="comment">   *      Output semantics are the same as in 2, with the specific code error::Code::S_WAIT_USER_TIMEOUT.</span></div>
-<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span><span class="comment">   * Note that it is NOT possible to return `false` and no error.</span></div>
-<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span><span class="comment">   * Tip: Typical types you might use for `max_wait`: `boost::chrono::milliseconds`,</span></div>
-<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span><span class="comment">   * `boost::chrono::seconds`, `boost::chrono::high_resolution_clock::duration`.</span></div>
-<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00481" name="l00481"></a><span class="lineno">  481</span><span class="comment">   * @tparam Rep</span></div>
-<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span><span class="comment">   *         See other sync_send().</span></div>
-<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span><span class="comment">   * @tparam Period</span></div>
-<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span><span class="comment">   *         See other sync_send().</span></div>
-<div class="line"><a id="l00485" name="l00485"></a><span class="lineno">  485</span><span class="comment">   * @param max_wait</span></div>
-<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span><span class="comment">   *        See other sync_receive().</span></div>
-<div class="line"><a id="l00487" name="l00487"></a><span class="lineno">  487</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00488" name="l00488"></a><span class="lineno">  488</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
-<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span><span class="comment">   *        Error, except `WAIT_INTERRUPTED` or `WAIT_USER_TIMEOUT`, implies that</span></div>
-<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span><span class="comment">   *        neither this nor any subsequent send() on this socket</span></div>
-<div class="line"><a id="l00491" name="l00491"></a><span class="lineno">  491</span><span class="comment">   *        will succeeed.  (In particular a clean disconnect is an error.)</span></div>
-<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span><span class="comment">   * @return `true` if 1+ bytes are possible to add to Send buffer; `false` if either a timeout has occurred (bytes</span></div>
-<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span><span class="comment">   *         not writable), or another error has occurred.</span></div>
-<div class="line"><a id="l00494" name="l00494"></a><span class="lineno">  494</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00495" name="l00495"></a><span class="lineno">  495</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period&gt;</div>
-<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">sync_send</a>(<span class="keyword">const</span> boost::asio::null_buffers&amp;,</div>
-<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span>                 <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
-<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span><span class="comment"></span> </div>
-<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span><span class="comment">   * Equivalent to `sync_send(data, duration::max(), err_code)`; i.e., sync_send() with no timeout.</span></div>
-<div class="line"><a id="l00501" name="l00501"></a><span class="lineno">  501</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span><span class="comment">   * @tparam Const_buffer_sequence</span></div>
-<div class="line"><a id="l00503" name="l00503"></a><span class="lineno">  503</span><span class="comment">   *         See other sync_send().</span></div>
-<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span><span class="comment">   * @param data</span></div>
-<div class="line"><a id="l00505" name="l00505"></a><span class="lineno">  505</span><span class="comment">   *        See other sync_send().</span></div>
-<div class="line"><a id="l00506" name="l00506"></a><span class="lineno">  506</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00507" name="l00507"></a><span class="lineno">  507</span><span class="comment">   *        See other sync_send().</span></div>
-<div class="line"><a id="l00508" name="l00508"></a><span class="lineno">  508</span><span class="comment">   * @return See other sync_send().</span></div>
-<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
-<div class="line"><a id="l00511" name="l00511"></a><span class="lineno">  511</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">sync_send</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
-<div class="line"><a id="l00512" name="l00512"></a><span class="lineno">  512</span><span class="comment"></span> </div>
-<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span><span class="comment">   * Equivalent to `sync_send(null_buffers(), duration::max(), err_code)`; i.e., `sync_send(null_buffers)`</span></div>
-<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span><span class="comment">   * with no timeout.</span></div>
-<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00517" name="l00517"></a><span class="lineno">  517</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00518" name="l00518"></a><span class="lineno">  518</span><span class="comment">   *        See other sync_receive().</span></div>
-<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span><span class="comment">   * @param tag</span></div>
-<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span><span class="comment">   *        Tag argument.</span></div>
-<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span><span class="comment">   * @return See other sync_receive().</span></div>
-<div class="line"><a id="l00522" name="l00522"></a><span class="lineno">  522</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00523" name="l00523"></a><span class="lineno">  523</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">sync_send</a>(<span class="keyword">const</span> boost::asio::null_buffers&amp;, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
-<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span><span class="comment"></span> </div>
-<div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span><span class="comment">   * Receives (consumes from the Receive buffer) bytes of data, up to a given maximum</span></div>
-<div class="line"><a id="l00527" name="l00527"></a><span class="lineno">  527</span><span class="comment">   * cumulative number of bytes as inferred from size of provided target buffer sequence.  The data</span></div>
-<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span><span class="comment">   * are copied into the user&#39;s structure and then removed from the Receive buffer.</span></div>
-<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span><span class="comment">   * The method does not block.  In particular if there are no data already received from the other</span></div>
-<div class="line"><a id="l00531" name="l00531"></a><span class="lineno">  531</span><span class="comment">   * side, we return no data.</span></div>
-<div class="line"><a id="l00532" name="l00532"></a><span class="lineno">  532</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00533" name="l00533"></a><span class="lineno">  533</span><span class="comment">   * If the provided buffer has size zero, the method is a NOOP other than possibly logging.</span></div>
-<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span><span class="comment">   * ### Error handling ###</span></div>
-<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span><span class="comment">   * These are the possible outcomes.</span></div>
-<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span><span class="comment">   *   1. There are no data in the Receive buffer.  Socket not Readable.  0 is returned;</span></div>
-<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span><span class="comment">   *      `*err_code` is set to success unless null; no data returned.</span></div>
-<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span><span class="comment">   *   2. The socket is not yet fully connected (`S_OPEN+S_CONNECTING`).  Socket not</span></div>
-<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span><span class="comment">   *      Readable.  0 is returned; `*err_code` is set to success unless null; no data returned.</span></div>
-<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span><span class="comment">   *   3. There are data in the Receive buffer; and socket is fully connected (`S_OPEN+S_CONNECTED`)</span></div>
-<div class="line"><a id="l00542" name="l00542"></a><span class="lineno">  542</span><span class="comment">   *      or gracefully shutting down (`S_OPEN+S_DISCONNECTING`).  Socket Readable.  &gt;= 1 is returned;</span></div>
-<div class="line"><a id="l00543" name="l00543"></a><span class="lineno">  543</span><span class="comment">   *      *err_code is set to success; data returned.</span></div>
-<div class="line"><a id="l00544" name="l00544"></a><span class="lineno">  544</span><span class="comment">   *   4. The operation cannot proceed due to an error.  0 is returned; `*err_code` is set to the</span></div>
-<div class="line"><a id="l00545" name="l00545"></a><span class="lineno">  545</span><span class="comment">   *      specific error; no data buffered.  (If `err_code` null, Runtime_error thrown.)</span></div>
-<div class="line"><a id="l00546" name="l00546"></a><span class="lineno">  546</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00547" name="l00547"></a><span class="lineno">  547</span><span class="comment">   * The semantics of -3- (the success case) are as follows.  N bytes will be copied from Receive</span></div>
-<div class="line"><a id="l00548" name="l00548"></a><span class="lineno">  548</span><span class="comment">   * buffer beginning at the start of the `Mutable_buffer_sequence target`.  These N bytes may be</span></div>
-<div class="line"><a id="l00549" name="l00549"></a><span class="lineno">  549</span><span class="comment">   * spread across 1 or more buffers in that sequence; the subdivision structure of the sequence of</span></div>
-<div class="line"><a id="l00550" name="l00550"></a><span class="lineno">  550</span><span class="comment">   * bytes into buffers has no effect on the bytes, or order thereof, that will be moved from the</span></div>
-<div class="line"><a id="l00551" name="l00551"></a><span class="lineno">  551</span><span class="comment">   * Receive buffer (e.g., `target` could be N+ 1-byte buffers, or one N+-byte buffer</span></div>
-<div class="line"><a id="l00552" name="l00552"></a><span class="lineno">  552</span><span class="comment">   * -- the popped Receive buffer would be the same, as would be the extracted bytes).  N equals the</span></div>
-<div class="line"><a id="l00553" name="l00553"></a><span class="lineno">  553</span><span class="comment">   * smaller of: the available bytes in the Receive buffer; and `buffer_size(target)`.  We return N.</span></div>
-<div class="line"><a id="l00554" name="l00554"></a><span class="lineno">  554</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00555" name="l00555"></a><span class="lineno">  555</span><span class="comment">   * ### Reliability and ordering guarantees ###</span></div>
-<div class="line"><a id="l00556" name="l00556"></a><span class="lineno">  556</span><span class="comment">   * See the send() doc header.</span></div>
-<div class="line"><a id="l00557" name="l00557"></a><span class="lineno">  557</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00558" name="l00558"></a><span class="lineno">  558</span><span class="comment">   * @tparam Mutable_buffer_sequence</span></div>
-<div class="line"><a id="l00559" name="l00559"></a><span class="lineno">  559</span><span class="comment">   *         Type that models the boost.asio `MutableBufferSequence` concept (see Boost docs).</span></div>
-<div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span><span class="comment">   *         Basically, it&#39;s any container with elements convertible to `boost::asio::mutable_buffer`;</span></div>
-<div class="line"><a id="l00561" name="l00561"></a><span class="lineno">  561</span><span class="comment">   *         and bidirectional iterator support.  Examples: `vector&lt;mutable_buffer&gt;`,</span></div>
-<div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span><span class="comment">   *         `list&lt;mutable_buffer&gt;`.  Why allow `mutable_buffer` instead of, say, `Sequence` of bytes?</span></div>
-<div class="line"><a id="l00563" name="l00563"></a><span class="lineno">  563</span><span class="comment">   *         Same reason as boost.asio&#39;s receive functions: it allows a great amount of flexibility</span></div>
-<div class="line"><a id="l00564" name="l00564"></a><span class="lineno">  564</span><span class="comment">   *         without sacrificing performance, since `boost::asio::buffer()` function can adapt lots of</span></div>
-<div class="line"><a id="l00565" name="l00565"></a><span class="lineno">  565</span><span class="comment">   *         different objects (arrays, `vector`s, `string`s, and more of bytes, integers, and more).</span></div>
-<div class="line"><a id="l00566" name="l00566"></a><span class="lineno">  566</span><span class="comment">   * @param target</span></div>
-<div class="line"><a id="l00567" name="l00567"></a><span class="lineno">  567</span><span class="comment">   *        Buffer sequence to which a stream of bytes to consume from Receive buffer will be</span></div>
-<div class="line"><a id="l00568" name="l00568"></a><span class="lineno">  568</span><span class="comment">   *        written.</span></div>
-<div class="line"><a id="l00569" name="l00569"></a><span class="lineno">  569</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
-<div class="line"><a id="l00571" name="l00571"></a><span class="lineno">  571</span><span class="comment">   *        Error implies that neither this receive() nor any subsequent receive() on this socket</span></div>
-<div class="line"><a id="l00572" name="l00572"></a><span class="lineno">  572</span><span class="comment">   *        will succeeed.  (In particular a clean disconnect is an error.)</span></div>
-<div class="line"><a id="l00573" name="l00573"></a><span class="lineno">  573</span><span class="comment">   * @return The number of bytes consumed (placed into `target`).  Always 0 if `bool(*err_code) == true`</span></div>
-<div class="line"><a id="l00574" name="l00574"></a><span class="lineno">  574</span><span class="comment">   *         when receive() returns.</span></div>
-<div class="line"><a id="l00575" name="l00575"></a><span class="lineno">  575</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00576" name="l00576"></a><span class="lineno">  576</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
-<div class="line"><a id="l00577" name="l00577"></a><span class="lineno">  577</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0">receive</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
-<div class="line"><a id="l00578" name="l00578"></a><span class="lineno">  578</span><span class="comment"></span> </div>
-<div class="line"><a id="l00579" name="l00579"></a><span class="lineno">  579</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00580" name="l00580"></a><span class="lineno">  580</span><span class="comment">   * Blocking (synchronous) version of receive().  Acts just like receive(), except that if socket</span></div>
-<div class="line"><a id="l00581" name="l00581"></a><span class="lineno">  581</span><span class="comment">   * is not immediately Readable (i.e., receive() would return 0 and no error), waits until it is</span></div>
-<div class="line"><a id="l00582" name="l00582"></a><span class="lineno">  582</span><span class="comment">   * Readable (receive() would return either &gt;0, or 0 and an error) and returns</span></div>
-<div class="line"><a id="l00583" name="l00583"></a><span class="lineno">  583</span><span class="comment">   * `receive(target, err_code)`.  If a timeout is specified, and this timeout expires before socket is</span></div>
-<div class="line"><a id="l00584" name="l00584"></a><span class="lineno">  584</span><span class="comment">   * Readable, it acts as if receive() produced error::Code::S_WAIT_USER_TIMEOUT.</span></div>
-<div class="line"><a id="l00585" name="l00585"></a><span class="lineno">  585</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00586" name="l00586"></a><span class="lineno">  586</span><span class="comment">   * ### Error handling ###</span></div>
-<div class="line"><a id="l00587" name="l00587"></a><span class="lineno">  587</span><span class="comment">   * These are the possible outcomes:</span></div>
-<div class="line"><a id="l00588" name="l00588"></a><span class="lineno">  588</span><span class="comment">   *   1. There are data in the Receive buffer; and socket is fully connected</span></div>
-<div class="line"><a id="l00589" name="l00589"></a><span class="lineno">  589</span><span class="comment">   *      (`S_OPEN+S_CONNECTED`) or gracefully shutting down (`S_OPEN+S_DISCONNECTING`).  Socket</span></div>
-<div class="line"><a id="l00590" name="l00590"></a><span class="lineno">  590</span><span class="comment">   *      Readable.  &gt;= 1 is returned; `*err_code` is set to success unless null; data returned.</span></div>
-<div class="line"><a id="l00591" name="l00591"></a><span class="lineno">  591</span><span class="comment">   *   2. The operation cannot proceed due to an error.  0 is returned; `*err_code` is set to the</span></div>
-<div class="line"><a id="l00592" name="l00592"></a><span class="lineno">  592</span><span class="comment">   *      specific error unless null; no data buffered.  `*err_code == S_WAIT_INTERRUPTED` means the wait was</span></div>
-<div class="line"><a id="l00593" name="l00593"></a><span class="lineno">  593</span><span class="comment">   *      interrupted (similarly to POSIX&#39;s `EINTR`).  (If `err_code` null, Runtime_error thrown.)</span></div>
-<div class="line"><a id="l00594" name="l00594"></a><span class="lineno">  594</span><span class="comment">   *   3. Neither condition above is detected before the timeout expires (if provided).</span></div>
-<div class="line"><a id="l00595" name="l00595"></a><span class="lineno">  595</span><span class="comment">   *      Output semantics are the same as in 2, with the specific code error::Code::S_WAIT_USER_TIMEOUT.</span></div>
-<div class="line"><a id="l00596" name="l00596"></a><span class="lineno">  596</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00597" name="l00597"></a><span class="lineno">  597</span><span class="comment">   * The semantics of -1- (the success case) equal those of receive().</span></div>
-<div class="line"><a id="l00598" name="l00598"></a><span class="lineno">  598</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00599" name="l00599"></a><span class="lineno">  599</span><span class="comment">   * Note that it is NOT possible to return 0 and no error.</span></div>
-<div class="line"><a id="l00600" name="l00600"></a><span class="lineno">  600</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00601" name="l00601"></a><span class="lineno">  601</span><span class="comment">   * Tip: Typical types you might use for `max_wait`: `boost::chrono::milliseconds`,</span></div>
-<div class="line"><a id="l00602" name="l00602"></a><span class="lineno">  602</span><span class="comment">   * `boost::chrono::seconds`, `boost::chrono::high_resolution_clock::duration`.</span></div>
-<div class="line"><a id="l00603" name="l00603"></a><span class="lineno">  603</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00604" name="l00604"></a><span class="lineno">  604</span><span class="comment">   * @see The version of sync_receive() with no timeout.</span></div>
-<div class="line"><a id="l00605" name="l00605"></a><span class="lineno">  605</span><span class="comment">   * @tparam Rep</span></div>
-<div class="line"><a id="l00606" name="l00606"></a><span class="lineno">  606</span><span class="comment">   *         See `boost::chrono::duration` documentation (and see above tip).</span></div>
-<div class="line"><a id="l00607" name="l00607"></a><span class="lineno">  607</span><span class="comment">   * @tparam Period</span></div>
-<div class="line"><a id="l00608" name="l00608"></a><span class="lineno">  608</span><span class="comment">   *         See `boost::chrono::duration` documentation (and see above tip).</span></div>
-<div class="line"><a id="l00609" name="l00609"></a><span class="lineno">  609</span><span class="comment">   * @tparam Mutable_buffer_sequence</span></div>
-<div class="line"><a id="l00610" name="l00610"></a><span class="lineno">  610</span><span class="comment">   *         See receive().</span></div>
-<div class="line"><a id="l00611" name="l00611"></a><span class="lineno">  611</span><span class="comment">   * @param target</span></div>
-<div class="line"><a id="l00612" name="l00612"></a><span class="lineno">  612</span><span class="comment">   *        See receive().</span></div>
-<div class="line"><a id="l00613" name="l00613"></a><span class="lineno">  613</span><span class="comment">   * @param max_wait</span></div>
-<div class="line"><a id="l00614" name="l00614"></a><span class="lineno">  614</span><span class="comment">   *        The maximum amount of time from now to wait before giving up on the wait and returning.</span></div>
-<div class="line"><a id="l00615" name="l00615"></a><span class="lineno">  615</span><span class="comment">   *        `&quot;duration&lt;Rep, Period&gt;::max()&quot;` will eliminate the time limit and cause indefinite wait</span></div>
-<div class="line"><a id="l00616" name="l00616"></a><span class="lineno">  616</span><span class="comment">   *        (i.e., no timeout).</span></div>
-<div class="line"><a id="l00617" name="l00617"></a><span class="lineno">  617</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00618" name="l00618"></a><span class="lineno">  618</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
-<div class="line"><a id="l00619" name="l00619"></a><span class="lineno">  619</span><span class="comment">   *        Error, except `WAIT_INTERRUPTED` or `WAIT_USER_TIMEOUT`, implies that</span></div>
-<div class="line"><a id="l00620" name="l00620"></a><span class="lineno">  620</span><span class="comment">   *        neither this receive() nor any subsequent receive() on this socket</span></div>
-<div class="line"><a id="l00621" name="l00621"></a><span class="lineno">  621</span><span class="comment">   *        will succeeed.  (In particular a clean disconnect is an error.)</span></div>
-<div class="line"><a id="l00622" name="l00622"></a><span class="lineno">  622</span><span class="comment">   * @return Number of bytes (possibly zero) added to target.  Always 0 if `bool(*err_code) == true` when</span></div>
-<div class="line"><a id="l00623" name="l00623"></a><span class="lineno">  623</span><span class="comment">   *         sync_receive() returns.</span></div>
-<div class="line"><a id="l00624" name="l00624"></a><span class="lineno">  624</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00625" name="l00625"></a><span class="lineno">  625</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period, <span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
-<div class="line"><a id="l00626" name="l00626"></a><span class="lineno">  626</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">sync_receive</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target,</div>
-<div class="line"><a id="l00627" name="l00627"></a><span class="lineno">  627</span>                      <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
-<div class="line"><a id="l00628" name="l00628"></a><span class="lineno">  628</span><span class="comment"></span> </div>
-<div class="line"><a id="l00629" name="l00629"></a><span class="lineno">  629</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00630" name="l00630"></a><span class="lineno">  630</span><span class="comment">   * `sync_receive()` operating in `null_buffers` mode, wherein -- if Readable state is reached -- the actual data</span></div>
-<div class="line"><a id="l00631" name="l00631"></a><span class="lineno">  631</span><span class="comment">   * are not moved into any buffer, leaving that to the caller to do if desired.  Hence, this is a way of waiting</span></div>
-<div class="line"><a id="l00632" name="l00632"></a><span class="lineno">  632</span><span class="comment">   * for Readable state that could be more concise in some situations than Event_set::sync_wait().</span></div>
-<div class="line"><a id="l00633" name="l00633"></a><span class="lineno">  633</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00634" name="l00634"></a><span class="lineno">  634</span><span class="comment">   * ### Error handling ###</span></div>
-<div class="line"><a id="l00635" name="l00635"></a><span class="lineno">  635</span><span class="comment">   * These are the possible outcomes:</span></div>
-<div class="line"><a id="l00636" name="l00636"></a><span class="lineno">  636</span><span class="comment">   *   1. There are data in the Receive buffer; and socket is fully connected</span></div>
-<div class="line"><a id="l00637" name="l00637"></a><span class="lineno">  637</span><span class="comment">   *      (`S_OPEN+S_CONNECTED`) or gracefully shutting down (`S_OPEN+S_DISCONNECTING`).  Socket</span></div>
-<div class="line"><a id="l00638" name="l00638"></a><span class="lineno">  638</span><span class="comment">   *      Readable.  `true` is returned; `*err_code` is set to success unless null.</span></div>
-<div class="line"><a id="l00639" name="l00639"></a><span class="lineno">  639</span><span class="comment">   *   2. The operation cannot proceed due to an error.  `false` is returned; `*err_code` is set to the</span></div>
-<div class="line"><a id="l00640" name="l00640"></a><span class="lineno">  640</span><span class="comment">   *      specific error unless null.  `*err_code == S_WAIT_INTERRUPTED` means the wait was</span></div>
-<div class="line"><a id="l00641" name="l00641"></a><span class="lineno">  641</span><span class="comment">   *      interrupted (similarly to POSIX&#39;s `EINTR`).  (If `err_code` null, Runtime_error thrown.)</span></div>
-<div class="line"><a id="l00642" name="l00642"></a><span class="lineno">  642</span><span class="comment">   *   3. Neither condition above is detected before the timeout expires (if provided).</span></div>
-<div class="line"><a id="l00643" name="l00643"></a><span class="lineno">  643</span><span class="comment">   *      Output semantics are the same as in 2, with the specific code error::Code::S_WAIT_USER_TIMEOUT.</span></div>
-<div class="line"><a id="l00644" name="l00644"></a><span class="lineno">  644</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00645" name="l00645"></a><span class="lineno">  645</span><span class="comment">   * Note that it is NOT possible to return `false` and no error.</span></div>
-<div class="line"><a id="l00646" name="l00646"></a><span class="lineno">  646</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00647" name="l00647"></a><span class="lineno">  647</span><span class="comment">   * Tip: Typical types you might use for `max_wait`: `boost::chrono::milliseconds`,</span></div>
-<div class="line"><a id="l00648" name="l00648"></a><span class="lineno">  648</span><span class="comment">   * `boost::chrono::seconds`, `boost::chrono::high_resolution_clock::duration`.</span></div>
-<div class="line"><a id="l00649" name="l00649"></a><span class="lineno">  649</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00650" name="l00650"></a><span class="lineno">  650</span><span class="comment">   * @tparam Rep</span></div>
-<div class="line"><a id="l00651" name="l00651"></a><span class="lineno">  651</span><span class="comment">   *         See other sync_receive().</span></div>
-<div class="line"><a id="l00652" name="l00652"></a><span class="lineno">  652</span><span class="comment">   * @tparam Period</span></div>
-<div class="line"><a id="l00653" name="l00653"></a><span class="lineno">  653</span><span class="comment">   *         See other sync_receive().</span></div>
-<div class="line"><a id="l00654" name="l00654"></a><span class="lineno">  654</span><span class="comment">   * @param max_wait</span></div>
-<div class="line"><a id="l00655" name="l00655"></a><span class="lineno">  655</span><span class="comment">   *        See other sync_receive().</span></div>
-<div class="line"><a id="l00656" name="l00656"></a><span class="lineno">  656</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00657" name="l00657"></a><span class="lineno">  657</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
-<div class="line"><a id="l00658" name="l00658"></a><span class="lineno">  658</span><span class="comment">   *        Error, except `WAIT_INTERRUPTED` or `WAIT_USER_TIMEOUT`, implies that</span></div>
-<div class="line"><a id="l00659" name="l00659"></a><span class="lineno">  659</span><span class="comment">   *        neither this nor any subsequent receive() on this socket</span></div>
-<div class="line"><a id="l00660" name="l00660"></a><span class="lineno">  660</span><span class="comment">   *        will succeeed.  (In particular a clean disconnect is an error.)</span></div>
-<div class="line"><a id="l00661" name="l00661"></a><span class="lineno">  661</span><span class="comment">   * @return `true` if there are 1+ bytes ready to read; `false` if either a timeout has occurred (no bytes ready), or</span></div>
-<div class="line"><a id="l00662" name="l00662"></a><span class="lineno">  662</span><span class="comment">   *         another error has occurred.</span></div>
-<div class="line"><a id="l00663" name="l00663"></a><span class="lineno">  663</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00664" name="l00664"></a><span class="lineno">  664</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period&gt;</div>
-<div class="line"><a id="l00665" name="l00665"></a><span class="lineno">  665</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">sync_receive</a>(<span class="keyword">const</span> boost::asio::null_buffers&amp;,</div>
-<div class="line"><a id="l00666" name="l00666"></a><span class="lineno">  666</span>                    <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
-<div class="line"><a id="l00667" name="l00667"></a><span class="lineno">  667</span><span class="comment"></span> </div>
-<div class="line"><a id="l00668" name="l00668"></a><span class="lineno">  668</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00669" name="l00669"></a><span class="lineno">  669</span><span class="comment">   * Equivalent to `sync_receive(target, duration::max(), err_code)`; i.e., sync_receive()</span></div>
-<div class="line"><a id="l00670" name="l00670"></a><span class="lineno">  670</span><span class="comment">   * with no timeout.</span></div>
-<div class="line"><a id="l00671" name="l00671"></a><span class="lineno">  671</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00672" name="l00672"></a><span class="lineno">  672</span><span class="comment">   * @tparam Mutable_buffer_sequence</span></div>
-<div class="line"><a id="l00673" name="l00673"></a><span class="lineno">  673</span><span class="comment">   *         See other sync_receive().</span></div>
-<div class="line"><a id="l00674" name="l00674"></a><span class="lineno">  674</span><span class="comment">   * @param target</span></div>
-<div class="line"><a id="l00675" name="l00675"></a><span class="lineno">  675</span><span class="comment">   *        See other sync_receive().</span></div>
-<div class="line"><a id="l00676" name="l00676"></a><span class="lineno">  676</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00677" name="l00677"></a><span class="lineno">  677</span><span class="comment">   *        See other sync_receive().</span></div>
-<div class="line"><a id="l00678" name="l00678"></a><span class="lineno">  678</span><span class="comment">   * @return See other sync_receive().</span></div>
-<div class="line"><a id="l00679" name="l00679"></a><span class="lineno">  679</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00680" name="l00680"></a><span class="lineno">  680</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
-<div class="line"><a id="l00681" name="l00681"></a><span class="lineno">  681</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">sync_receive</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
-<div class="line"><a id="l00682" name="l00682"></a><span class="lineno">  682</span><span class="comment"></span> </div>
-<div class="line"><a id="l00683" name="l00683"></a><span class="lineno">  683</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00684" name="l00684"></a><span class="lineno">  684</span><span class="comment">   * Equivalent to `sync_receive(null_buffers(), duration::max(), err_code)`; i.e., `sync_receive(null_buffers)`</span></div>
-<div class="line"><a id="l00685" name="l00685"></a><span class="lineno">  685</span><span class="comment">   * with no timeout.</span></div>
-<div class="line"><a id="l00686" name="l00686"></a><span class="lineno">  686</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00687" name="l00687"></a><span class="lineno">  687</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00688" name="l00688"></a><span class="lineno">  688</span><span class="comment">   *        See other sync_receive().</span></div>
-<div class="line"><a id="l00689" name="l00689"></a><span class="lineno">  689</span><span class="comment">   * @param tag</span></div>
-<div class="line"><a id="l00690" name="l00690"></a><span class="lineno">  690</span><span class="comment">   *        Tag argument.</span></div>
-<div class="line"><a id="l00691" name="l00691"></a><span class="lineno">  691</span><span class="comment">   * @return See other sync_receive().</span></div>
-<div class="line"><a id="l00692" name="l00692"></a><span class="lineno">  692</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00693" name="l00693"></a><span class="lineno">  693</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">sync_receive</a>(<span class="keyword">const</span> boost::asio::null_buffers&amp;, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
-<div class="line"><a id="l00694" name="l00694"></a><span class="lineno">  694</span><span class="comment"></span> </div>
-<div class="line"><a id="l00695" name="l00695"></a><span class="lineno">  695</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00696" name="l00696"></a><span class="lineno">  696</span><span class="comment">   * Acts as if fatal error error::Code::S_USER_CLOSED_ABRUPTLY has been discovered on the</span></div>
-<div class="line"><a id="l00697" name="l00697"></a><span class="lineno">  697</span><span class="comment">   * connection.  Does not block.</span></div>
-<div class="line"><a id="l00698" name="l00698"></a><span class="lineno">  698</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00699" name="l00699"></a><span class="lineno">  699</span><span class="comment">   * Post-condition: `state() == State::S_CLOSED`.  Additionally, assuming no loss on the</span></div>
-<div class="line"><a id="l00700" name="l00700"></a><span class="lineno">  700</span><span class="comment">   * network, the other side will close the connection with error</span></div>
-<div class="line"><a id="l00701" name="l00701"></a><span class="lineno">  701</span><span class="comment">   * error::Code::S_CONN_RESET_BY_OTHER_SIDE.</span></div>
-<div class="line"><a id="l00702" name="l00702"></a><span class="lineno">  702</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00703" name="l00703"></a><span class="lineno">  703</span><span class="comment">   * Note: Discovering a fatal error on the connection would trigger all event waits on this socket</span></div>
-<div class="line"><a id="l00704" name="l00704"></a><span class="lineno">  704</span><span class="comment">   * (sync_send(), sync_receive(), Event_set::sync_wait(), Event_set::async_wait()) to execute on-event</span></div>
-<div class="line"><a id="l00705" name="l00705"></a><span class="lineno">  705</span><span class="comment">   * behavior (return, return, return, invoke handler, respectively).  Therefore this method will cause</span></div>
-<div class="line"><a id="l00706" name="l00706"></a><span class="lineno">  706</span><span class="comment">   * just that, if applicable.</span></div>
-<div class="line"><a id="l00707" name="l00707"></a><span class="lineno">  707</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00708" name="l00708"></a><span class="lineno">  708</span><span class="comment">   * Note: As a corollary, a socket closing this way (or any other way) does NOT cause that socket&#39;s</span></div>
-<div class="line"><a id="l00709" name="l00709"></a><span class="lineno">  709</span><span class="comment">   * events (if any) to be removed from any Event_set objects.  Clearing an Event_set of all or some</span></div>
-<div class="line"><a id="l00710" name="l00710"></a><span class="lineno">  710</span><span class="comment">   * sockets is the Event_set user&#39;s responsibility (the classic way being Event_set::close()).</span></div>
-<div class="line"><a id="l00711" name="l00711"></a><span class="lineno">  711</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00712" name="l00712"></a><span class="lineno">  712</span><span class="comment">   * @warning The moment the other side is informed we have abruptly closed the connection, they</span></div>
-<div class="line"><a id="l00713" name="l00713"></a><span class="lineno">  713</span><span class="comment">   * will no longer be able to receive() any of it (even if data had been queued up in</span></div>
-<div class="line"><a id="l00714" name="l00714"></a><span class="lineno">  714</span><span class="comment">   * their Receive buffer).</span></div>
-<div class="line"><a id="l00715" name="l00715"></a><span class="lineno">  715</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00716" name="l00716"></a><span class="lineno">  716</span><span class="comment">   * @todo Currently this close_abruptly() is the only way for the user to explicitly close one specified socket.</span></div>
-<div class="line"><a id="l00717" name="l00717"></a><span class="lineno">  717</span><span class="comment">   * All other ways are due to error (or other side starting graceful shutdown, once we</span></div>
-<div class="line"><a id="l00718" name="l00718"></a><span class="lineno">  718</span><span class="comment">   * implement that).  Once we implement graceful close, via `close_start()` and `close_final()`,</span></div>
-<div class="line"><a id="l00719" name="l00719"></a><span class="lineno">  719</span><span class="comment">   * use of close_abruptly() should be discouraged, or it may even be deprecated (e.g.,</span></div>
-<div class="line"><a id="l00720" name="l00720"></a><span class="lineno">  720</span><span class="comment">   * `Node`s lack a way to initiate an abrupt close for a specific socket).</span></div>
-<div class="line"><a id="l00721" name="l00721"></a><span class="lineno">  721</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00722" name="l00722"></a><span class="lineno">  722</span><span class="comment">   * @todo close_abruptly() return `bool` (`false` on failure)?</span></div>
-<div class="line"><a id="l00723" name="l00723"></a><span class="lineno">  723</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00724" name="l00724"></a><span class="lineno">  724</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00725" name="l00725"></a><span class="lineno">  725</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.  Generated codes:</span></div>
-<div class="line"><a id="l00726" name="l00726"></a><span class="lineno">  726</span><span class="comment">   *        error::Code::S_NODE_NOT_RUNNING, or -- if socket already closed (`state() == State::S_CLOSED`) --</span></div>
-<div class="line"><a id="l00727" name="l00727"></a><span class="lineno">  727</span><span class="comment">   *        then the error that caused the closure.</span></div>
-<div class="line"><a id="l00728" name="l00728"></a><span class="lineno">  728</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00729" name="l00729"></a><span class="lineno">  729</span>  <span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a9ab710704237f912eb219f9b8d574afc">close_abruptly</a>(<a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
-<div class="line"><a id="l00730" name="l00730"></a><span class="lineno">  730</span><span class="comment"></span> </div>
-<div class="line"><a id="l00731" name="l00731"></a><span class="lineno">  731</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00732" name="l00732"></a><span class="lineno">  732</span><span class="comment">   * Dynamically replaces the current options set (options()) with the given options set.</span></div>
-<div class="line"><a id="l00733" name="l00733"></a><span class="lineno">  733</span><span class="comment">   * Only those members of `opts` designated as dynamic (as opposed to static) may be different</span></div>
-<div class="line"><a id="l00734" name="l00734"></a><span class="lineno">  734</span><span class="comment">   * between options() and `opts`.  If this is violated, it is an error, and no options are changed.</span></div>
-<div class="line"><a id="l00735" name="l00735"></a><span class="lineno">  735</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00736" name="l00736"></a><span class="lineno">  736</span><span class="comment">   * Typically one would acquire a copy of the existing options set via options(), modify the</span></div>
-<div class="line"><a id="l00737" name="l00737"></a><span class="lineno">  737</span><span class="comment">   * desired dynamic data members of that copy, and then apply that copy back by calling</span></div>
-<div class="line"><a id="l00738" name="l00738"></a><span class="lineno">  738</span><span class="comment">   * set_options().</span></div>
-<div class="line"><a id="l00739" name="l00739"></a><span class="lineno">  739</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00740" name="l00740"></a><span class="lineno">  740</span><span class="comment">   * @param opts</span></div>
-<div class="line"><a id="l00741" name="l00741"></a><span class="lineno">  741</span><span class="comment">   *        The new options to apply to this socket.  It is copied; no reference is saved.</span></div>
-<div class="line"><a id="l00742" name="l00742"></a><span class="lineno">  742</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00743" name="l00743"></a><span class="lineno">  743</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.  Generated codes:</span></div>
-<div class="line"><a id="l00744" name="l00744"></a><span class="lineno">  744</span><span class="comment">   *        error::Code::S_STATIC_OPTION_CHANGED, error::Code::S_OPTION_CHECK_FAILED,</span></div>
-<div class="line"><a id="l00745" name="l00745"></a><span class="lineno">  745</span><span class="comment">   *        error::Code::S_NODE_NOT_RUNNING.</span></div>
-<div class="line"><a id="l00746" name="l00746"></a><span class="lineno">  746</span><span class="comment">   * @return `true` on success, `false` on error.</span></div>
-<div class="line"><a id="l00747" name="l00747"></a><span class="lineno">  747</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00748" name="l00748"></a><span class="lineno">  748</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a7d31cf18a3c075873de1c46c0176e41f">set_options</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>&amp; opts, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
-<div class="line"><a id="l00749" name="l00749"></a><span class="lineno">  749</span><span class="comment"></span> </div>
-<div class="line"><a id="l00750" name="l00750"></a><span class="lineno">  750</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00751" name="l00751"></a><span class="lineno">  751</span><span class="comment">   * Copies this socket&#39;s option set and returns that copy.  If you intend to use set_options() to</span></div>
-<div class="line"><a id="l00752" name="l00752"></a><span class="lineno">  752</span><span class="comment">   * modify a socket&#39;s options, we recommend you make the modifications on the copy returned by</span></div>
-<div class="line"><a id="l00753" name="l00753"></a><span class="lineno">  753</span><span class="comment">   * options().</span></div>
-<div class="line"><a id="l00754" name="l00754"></a><span class="lineno">  754</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00755" name="l00755"></a><span class="lineno">  755</span><span class="comment">   * @todo Provide a similar options() method that loads an existing structure (for structure</span></div>
-<div class="line"><a id="l00756" name="l00756"></a><span class="lineno">  756</span><span class="comment">   * reuse).</span></div>
-<div class="line"><a id="l00757" name="l00757"></a><span class="lineno">  757</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00758" name="l00758"></a><span class="lineno">  758</span><span class="comment">   * @return See above.</span></div>
-<div class="line"><a id="l00759" name="l00759"></a><span class="lineno">  759</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00760" name="l00760"></a><span class="lineno">  760</span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#ad94e37c8cca01f801f13e9e0e0bc857d">options</a>() <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00761" name="l00761"></a><span class="lineno">  761</span><span class="comment"></span> </div>
-<div class="line"><a id="l00762" name="l00762"></a><span class="lineno">  762</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00763" name="l00763"></a><span class="lineno">  763</span><span class="comment">   * Returns a structure containing the most up-to-date stats about this connection.</span></div>
-<div class="line"><a id="l00764" name="l00764"></a><span class="lineno">  764</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00765" name="l00765"></a><span class="lineno">  765</span><span class="comment">   * @note At the cost of reducing locking overhead in 99.999999% of the Peer_socket&#39;s operation,</span></div>
-<div class="line"><a id="l00766" name="l00766"></a><span class="lineno">  766</span><span class="comment">   *       this method may take a bit of time to run.  It&#39;s still probably only 10 times or so slower than</span></div>
-<div class="line"><a id="l00767" name="l00767"></a><span class="lineno">  767</span><span class="comment">   *       a simple lock, work, unlock -- there is a condition variable and stuff involved -- but this may</span></div>
-<div class="line"><a id="l00768" name="l00768"></a><span class="lineno">  768</span><span class="comment">   *       matter if done very frequently.  So you probably should not.  (Hmmm... where did I get these estimates,</span></div>
-<div class="line"><a id="l00769" name="l00769"></a><span class="lineno">  769</span><span class="comment">   *       namely &quot;10 times or so&quot;?)</span></div>
-<div class="line"><a id="l00770" name="l00770"></a><span class="lineno">  770</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00771" name="l00771"></a><span class="lineno">  771</span><span class="comment">   * @todo Provide a similar info() method that loads an existing structure (for structure</span></div>
-<div class="line"><a id="l00772" name="l00772"></a><span class="lineno">  772</span><span class="comment">   * reuse).</span></div>
-<div class="line"><a id="l00773" name="l00773"></a><span class="lineno">  773</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00774" name="l00774"></a><span class="lineno">  774</span><span class="comment">   * @return See above.</span></div>
-<div class="line"><a id="l00775" name="l00775"></a><span class="lineno">  775</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00776" name="l00776"></a><span class="lineno">  776</span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__info.html">Peer_socket_info</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#aad81cc16fc6f0d353fdc1379e1dd4712">info</a>() <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00777" name="l00777"></a><span class="lineno">  777</span><span class="comment"></span> </div>
-<div class="line"><a id="l00778" name="l00778"></a><span class="lineno">  778</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00779" name="l00779"></a><span class="lineno">  779</span><span class="comment">   * The maximum number of bytes of user data per received or sent packet on this connection.  See</span></div>
-<div class="line"><a id="l00780" name="l00780"></a><span class="lineno">  780</span><span class="comment">   * Peer_socket_options::m_st_max_block_size.  Note that this method is ESSENTIAL when using the</span></div>
-<div class="line"><a id="l00781" name="l00781"></a><span class="lineno">  781</span><span class="comment">   * socket in unreliable mode (assuming you want to implement reliability outside of `net_flow`).</span></div>
-<div class="line"><a id="l00782" name="l00782"></a><span class="lineno">  782</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00783" name="l00783"></a><span class="lineno">  783</span><span class="comment">   * @return Ditto.</span></div>
-<div class="line"><a id="l00784" name="l00784"></a><span class="lineno">  784</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00785" name="l00785"></a><span class="lineno">  785</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#aa1f821dde38a7aa572651730744edbd8">max_block_size</a>() <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00786" name="l00786"></a><span class="lineno">  786</span><span class="comment"></span> </div>
-<div class="line"><a id="l00787" name="l00787"></a><span class="lineno">  787</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00788" name="l00788"></a><span class="lineno">  788</span><span class="comment">   * The error code that perviously caused state() to become State::S_CLOSED, or success code if state</span></div>
-<div class="line"><a id="l00789" name="l00789"></a><span class="lineno">  789</span><span class="comment">   * is not CLOSED.  For example, error::code::S_CONN_RESET_BY_OTHER_SIDE (if was connected) or</span></div>
-<div class="line"><a id="l00790" name="l00790"></a><span class="lineno">  790</span><span class="comment">   * error::Code::S_CONN_TIMEOUT (if was connecting)</span></div>
-<div class="line"><a id="l00791" name="l00791"></a><span class="lineno">  791</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00792" name="l00792"></a><span class="lineno">  792</span><span class="comment">   * @return Ditto.</span></div>
-<div class="line"><a id="l00793" name="l00793"></a><span class="lineno">  793</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00794" name="l00794"></a><span class="lineno">  794</span>  <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a74f6fd527766fdeb05a96c5c03729a00">disconnect_cause</a>() <span class="keyword">const</span>;</div>
-<div class="line"><a id="l00795" name="l00795"></a><span class="lineno">  795</span> </div>
-<div class="line"><a id="l00796" name="l00796"></a><span class="lineno">  796</span><span class="keyword">protected</span>:</div>
-<div class="line"><a id="l00797" name="l00797"></a><span class="lineno">  797</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l00798" name="l00798"></a><span class="lineno">  798</span><span class="comment"></span> </div>
-<div class="line"><a id="l00799" name="l00799"></a><span class="lineno">  799</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00800" name="l00800"></a><span class="lineno">  800</span><span class="comment">   * Constructs object; initializes most values to well-defined (0, empty, etc.) but not necessarily</span></div>
-<div class="line"><a id="l00801" name="l00801"></a><span class="lineno">  801</span><span class="comment">   * meaningful values.</span></div>
-<div class="line"><a id="l00802" name="l00802"></a><span class="lineno">  802</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00803" name="l00803"></a><span class="lineno">  803</span><span class="comment">   * @param logger_ptr</span></div>
-<div class="line"><a id="l00804" name="l00804"></a><span class="lineno">  804</span><span class="comment">   *        The Logger implementation to use subsequently.</span></div>
-<div class="line"><a id="l00805" name="l00805"></a><span class="lineno">  805</span><span class="comment">   * @param task_engine</span></div>
-<div class="line"><a id="l00806" name="l00806"></a><span class="lineno">  806</span><span class="comment">   *        IO service for the timer(s) stored as data member(s).</span></div>
-<div class="line"><a id="l00807" name="l00807"></a><span class="lineno">  807</span><span class="comment">   * @param opts</span></div>
-<div class="line"><a id="l00808" name="l00808"></a><span class="lineno">  808</span><span class="comment">   *        The options set to copy into this Peer_socket and use subsequently.</span></div>
-<div class="line"><a id="l00809" name="l00809"></a><span class="lineno">  809</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00810" name="l00810"></a><span class="lineno">  810</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a5003c554807f5b5b58989ad58be48d42">Peer_socket</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr,</div>
-<div class="line"><a id="l00811" name="l00811"></a><span class="lineno">  811</span>                       <a class="code hl_typedef" href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">util::Task_engine</a>* task_engine,</div>
-<div class="line"><a id="l00812" name="l00812"></a><span class="lineno">  812</span>                       <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>&amp; opts);</div>
-<div class="line"><a id="l00813" name="l00813"></a><span class="lineno">  813</span> </div>
-<div class="line"><a id="l00814" name="l00814"></a><span class="lineno">  814</span><span class="keyword">private</span>:</div>
-<div class="line"><a id="l00815" name="l00815"></a><span class="lineno">  815</span>  <span class="comment">// Friends.</span></div>
-<div class="line"><a id="l00816" name="l00816"></a><span class="lineno">  816</span><span class="comment"></span> </div>
-<div class="line"><a id="l00817" name="l00817"></a><span class="lineno">  817</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00818" name="l00818"></a><span class="lineno">  818</span><span class="comment">   * See rationale for `friend`ing Node in class Peer_socket documentation header.</span></div>
-<div class="line"><a id="l00819" name="l00819"></a><span class="lineno">  819</span><span class="comment">   * @see Node.</span></div>
-<div class="line"><a id="l00820" name="l00820"></a><span class="lineno">  820</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00821" name="l00821"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a6db9d28bd448a131448276ee03de1e6d">  821</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Node.html">Node</a>;<span class="comment"></span></div>
-<div class="line"><a id="l00822" name="l00822"></a><span class="lineno">  822</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00823" name="l00823"></a><span class="lineno">  823</span><span class="comment">   * See rationale for `friend`ing Server_socket in class Peer_socket documentation header.</span></div>
-<div class="line"><a id="l00824" name="l00824"></a><span class="lineno">  824</span><span class="comment">   * @see Server_socket.</span></div>
-<div class="line"><a id="l00825" name="l00825"></a><span class="lineno">  825</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00826" name="l00826"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a2165381af6166d76afba06862c762367">  826</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Server__socket.html">Server_socket</a>;<span class="comment"></span></div>
-<div class="line"><a id="l00827" name="l00827"></a><span class="lineno">  827</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00828" name="l00828"></a><span class="lineno">  828</span><span class="comment">   * For access to `Sent_pkt_by_sent_when_map` and Sent_packet types, at least.</span></div>
-<div class="line"><a id="l00829" name="l00829"></a><span class="lineno">  829</span><span class="comment">   * (Drop_timer has no actual Peer_socket instance to mess with.)</span></div>
-<div class="line"><a id="l00830" name="l00830"></a><span class="lineno">  830</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00831" name="l00831"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad1259416e25ed2bd94bce3192c682e5d">  831</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Drop__timer.html">Drop_timer</a>;<span class="comment"></span></div>
-<div class="line"><a id="l00832" name="l00832"></a><span class="lineno">  832</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00833" name="l00833"></a><span class="lineno">  833</span><span class="comment">   * Stats modules have const access to all socket internals.</span></div>
-<div class="line"><a id="l00834" name="l00834"></a><span class="lineno">  834</span><span class="comment">   * @see Send_bandwidth_estimator.</span></div>
-<div class="line"><a id="l00835" name="l00835"></a><span class="lineno">  835</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00836" name="l00836"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a7c0f36768414ae35afeb525636a41290">  836</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Send__bandwidth__estimator.html">Send_bandwidth_estimator</a>;<span class="comment"></span></div>
-<div class="line"><a id="l00837" name="l00837"></a><span class="lineno">  837</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00838" name="l00838"></a><span class="lineno">  838</span><span class="comment">   * Congestion control modules have const access to all socket internals.</span></div>
-<div class="line"><a id="l00839" name="l00839"></a><span class="lineno">  839</span><span class="comment">   * @see Congestion_control_classic_data.</span></div>
-<div class="line"><a id="l00840" name="l00840"></a><span class="lineno">  840</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00841" name="l00841"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a73cd234409fb43c27e1f46f2303ca55d">  841</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Congestion__control__classic__data.html">Congestion_control_classic_data</a>;<span class="comment"></span></div>
-<div class="line"><a id="l00842" name="l00842"></a><span class="lineno">  842</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00843" name="l00843"></a><span class="lineno">  843</span><span class="comment">   * Congestion control modules have const access to all socket internals.</span></div>
-<div class="line"><a id="l00844" name="l00844"></a><span class="lineno">  844</span><span class="comment">   * @see Congestion_control_classic.</span></div>
-<div class="line"><a id="l00845" name="l00845"></a><span class="lineno">  845</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00846" name="l00846"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad1b055f28b89531ad98368286babfdb1">  846</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Congestion__control__classic.html">Congestion_control_classic</a>;<span class="comment"></span></div>
-<div class="line"><a id="l00847" name="l00847"></a><span class="lineno">  847</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00848" name="l00848"></a><span class="lineno">  848</span><span class="comment">   * Congestion control modules have const access to all socket internals.</span></div>
-<div class="line"><a id="l00849" name="l00849"></a><span class="lineno">  849</span><span class="comment">   * @see Congestion_control_classic_with_bandwidth_est.</span></div>
-<div class="line"><a id="l00850" name="l00850"></a><span class="lineno">  850</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00851" name="l00851"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a7020b02ef7daffcfd9004e41240f51b8">  851</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Congestion__control__classic__with__bandwidth__est.html">Congestion_control_classic_with_bandwidth_est</a>;</div>
-<div class="line"><a id="l00852" name="l00852"></a><span class="lineno">  852</span> </div>
-<div class="line"><a id="l00853" name="l00853"></a><span class="lineno">  853</span>  <span class="comment">// Types.</span></div>
-<div class="line"><a id="l00854" name="l00854"></a><span class="lineno">  854</span><span class="comment"></span> </div>
-<div class="line"><a id="l00855" name="l00855"></a><span class="lineno">  855</span><span class="comment">  /// Short-hand for `shared_ptr` to immutable Drop_timer (can&#39;t use Drop_timer::Ptr due to C++ and circular reference).</span></div>
-<div class="line"><a id="l00856" name="l00856"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ae804be57cf09b9bf76eafa8ffff73de6">  856</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ae804be57cf09b9bf76eafa8ffff73de6">Drop_timer_ptr</a> = boost::shared_ptr&lt;Drop_timer&gt;;</div>
-<div class="line"><a id="l00857" name="l00857"></a><span class="lineno">  857</span><span class="comment"></span> </div>
-<div class="line"><a id="l00858" name="l00858"></a><span class="lineno">  858</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00859" name="l00859"></a><span class="lineno">  859</span><span class="comment">   * Short-hand for high-performance, non-reentrant, exclusive mutex used to lock #m_opts.</span></div>
-<div class="line"><a id="l00860" name="l00860"></a><span class="lineno">  860</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00861" name="l00861"></a><span class="lineno">  861</span><span class="comment">   * ### Rationale ###</span></div>
-<div class="line"><a id="l00862" name="l00862"></a><span class="lineno">  862</span><span class="comment">   * You might notice this seems tailor-made for shared/exclusive (a/k/a multiple-readers-single-writer) mutex.</span></div>
-<div class="line"><a id="l00863" name="l00863"></a><span class="lineno">  863</span><span class="comment">   * Why a 2-level mutex instead of a normal exclusive mutex?  Because options can be accessed by</span></div>
-<div class="line"><a id="l00864" name="l00864"></a><span class="lineno">  864</span><span class="comment">   * thread W and various user threads, in the vast majority of the time to read option values.  On</span></div>
-<div class="line"><a id="l00865" name="l00865"></a><span class="lineno">  865</span><span class="comment">   * the other hand, rarely, #m_opts may be modified via set_options().  To avoid thread contention</span></div>
-<div class="line"><a id="l00866" name="l00866"></a><span class="lineno">  866</span><span class="comment">   * when no one is writing (which is usual), we could use that 2-level type of mutex and apply the appropriate</span></div>
-<div class="line"><a id="l00867" name="l00867"></a><span class="lineno">  867</span><span class="comment">   * (shared or unique) lock depending on the situation.  So why not?  Answer:</span></div>
-<div class="line"><a id="l00868" name="l00868"></a><span class="lineno">  868</span><span class="comment">   * While a shared/exclusive mutex sounds lovely in theory -- and perhaps</span></div>
-<div class="line"><a id="l00869" name="l00869"></a><span class="lineno">  869</span><span class="comment">   * if its implementation were closer to the hardware it would be lovely indeed -- in practice it seems its</span></div>
-<div class="line"><a id="l00870" name="l00870"></a><span class="lineno">  870</span><span class="comment">   * implementation just causes performance problems rather than solving them.  Apparently that&#39;s why</span></div>
-<div class="line"><a id="l00871" name="l00871"></a><span class="lineno">  871</span><span class="comment">   * it was rejected by C++11 standards people w/r/t inclusion in that standard.  The people involved</span></div>
-<div class="line"><a id="l00872" name="l00872"></a><span class="lineno">  872</span><span class="comment">   * explained their decision here: http://permalink.gmane.org/gmane.comp.lib.boost.devel/211180.</span></div>
-<div class="line"><a id="l00873" name="l00873"></a><span class="lineno">  873</span><span class="comment">   * So until that is improved, just do this.  I&#39;m not even adding a to-do for fixing this, as that seems</span></div>
-<div class="line"><a id="l00874" name="l00874"></a><span class="lineno">  874</span><span class="comment">   * unlikely anytime soon.  Update: C++17 added `std::shared_mutex`, and C++14 added a similar thing named</span></div>
-<div class="line"><a id="l00875" name="l00875"></a><span class="lineno">  875</span><span class="comment">   * something else.  Seems like a good time to revisit this -- if not to materially improve #Options_mutex</span></div>
-<div class="line"><a id="l00876" name="l00876"></a><span class="lineno">  876</span><span class="comment">   * performance then to gain up-to-date knowledge on the topic, specifically whether `shared_mutex` is fast now.</span></div>
-<div class="line"><a id="l00877" name="l00877"></a><span class="lineno">  877</span><span class="comment">   * Update: Apparently as of Boost-1.80 the Boost.thread impl of `shared_mutex` is lacking in perf, and there</span></div>
-<div class="line"><a id="l00878" name="l00878"></a><span class="lineno">  878</span><span class="comment">   * is a ticket filed for many years for this.  Perhaps gcc `std::shared_mutex` is fine.  However research</span></div>
-<div class="line"><a id="l00879" name="l00879"></a><span class="lineno">  879</span><span class="comment">   * suggests it&#39;s less about this nitty-gritty of various impls and more the following bottom line:</span></div>
-<div class="line"><a id="l00880" name="l00880"></a><span class="lineno">  880</span><span class="comment">   * A simple mutex is *very* fast to lock/unlock, and perf problems occur only if one must wait for a lock.</span></div>
-<div class="line"><a id="l00881" name="l00881"></a><span class="lineno">  881</span><span class="comment">   * Experts say that it is possible but quite rare that there is enough lock contention to make it &quot;worth it&quot;:</span></div>
-<div class="line"><a id="l00882" name="l00882"></a><span class="lineno">  882</span><span class="comment">   * a shared mutex is *much* slower to lock/unlock sans contention.  Only when the read critical sections are</span></div>
-<div class="line"><a id="l00883" name="l00883"></a><span class="lineno">  883</span><span class="comment">   * long and very frequently accessed does it become &quot;worth it.&quot;</span></div>
-<div class="line"><a id="l00884" name="l00884"></a><span class="lineno">  884</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00885" name="l00885"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a1e1379f9a0269d6990f26bf1da045657">  885</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1e1379f9a0269d6990f26bf1da045657">Options_mutex</a> = <a class="code hl_typedef" href="namespaceflow_1_1util.html#add6ade273326f27eaf9bfd170a909626">util::Mutex_non_recursive</a>;</div>
-<div class="line"><a id="l00886" name="l00886"></a><span class="lineno">  886</span><span class="comment"></span> </div>
-<div class="line"><a id="l00887" name="l00887"></a><span class="lineno">  887</span><span class="comment">  /// Short-hand for lock that acquires exclusive access to an #Options_mutex.</span></div>
-<div class="line"><a id="l00888" name="l00888"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">  888</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">Options_lock</a> = <a class="code hl_typedef" href="namespaceflow_1_1util.html#a5d2247b715da63e4b960909561b90ae7">util::Lock_guard&lt;Options_mutex&gt;</a>;</div>
-<div class="line"><a id="l00889" name="l00889"></a><span class="lineno">  889</span><span class="comment"></span> </div>
-<div class="line"><a id="l00890" name="l00890"></a><span class="lineno">  890</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00891" name="l00891"></a><span class="lineno">  891</span><span class="comment">   * Short-hand for reentrant mutex type.  We explicitly rely on reentrant behavior, so this isn&#39;t &quot;just in case.&quot;</span></div>
-<div class="line"><a id="l00892" name="l00892"></a><span class="lineno">  892</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00893" name="l00893"></a><span class="lineno">  893</span><span class="comment">   * @todo This doc header for Peer_socket::Mutex should specify what specific behavior requires mutex reentrance, so</span></div>
-<div class="line"><a id="l00894" name="l00894"></a><span class="lineno">  894</span><span class="comment">   * that for example one could reevaluate whether there&#39;s a sleeker code pattern that would avoid it.</span></div>
-<div class="line"><a id="l00895" name="l00895"></a><span class="lineno">  895</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00896" name="l00896"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad1e36619c78b15f46576a18678a4ee67">  896</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ad1e36619c78b15f46576a18678a4ee67">Mutex</a> = <a class="code hl_typedef" href="namespaceflow_1_1util.html#a9c7a5df07c2e86c788de9e6bbaee77d5">util::Mutex_recursive</a>;</div>
-<div class="line"><a id="l00897" name="l00897"></a><span class="lineno">  897</span><span class="comment"></span> </div>
-<div class="line"><a id="l00898" name="l00898"></a><span class="lineno">  898</span><span class="comment">  /// Short-hand for RAII lock guard of #Mutex.</span></div>
-<div class="line"><a id="l00899" name="l00899"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">  899</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Lock_guard</a> = <a class="code hl_typedef" href="namespaceflow_1_1util.html#a5d2247b715da63e4b960909561b90ae7">util::Lock_guard&lt;Mutex&gt;</a>;</div>
-<div class="line"><a id="l00900" name="l00900"></a><span class="lineno">  900</span><span class="comment"></span> </div>
-<div class="line"><a id="l00901" name="l00901"></a><span class="lineno">  901</span><span class="comment">  /// Type used for #m_security_token.</span></div>
-<div class="line"><a id="l00902" name="l00902"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a59db68ed0c77a9f6e1a7aeeb3df2a6b9">  902</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a59db68ed0c77a9f6e1a7aeeb3df2a6b9">security_token_t</a> = uint64_t;</div>
-<div class="line"><a id="l00903" name="l00903"></a><span class="lineno">  903</span><span class="comment"></span> </div>
-<div class="line"><a id="l00904" name="l00904"></a><span class="lineno">  904</span><span class="comment">  /// Short-hand for order number type.  0 is reserved.  Caution: Keep in sync with Drop_timer::packet_id_t.</span></div>
-<div class="line"><a id="l00905" name="l00905"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">  905</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">order_num_t</a> = <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">Sequence_number::seq_num_t</a>;</div>
-<div class="line"><a id="l00906" name="l00906"></a><span class="lineno">  906</span><span class="comment"></span> </div>
-<div class="line"><a id="l00907" name="l00907"></a><span class="lineno">  907</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00908" name="l00908"></a><span class="lineno">  908</span><span class="comment">   * The state of the socket (and the connection from this end&#39;s point of view) for the internal state</span></div>
-<div class="line"><a id="l00909" name="l00909"></a><span class="lineno">  909</span><span class="comment">   * machine governing the operation of the socket.</span></div>
-<div class="line"><a id="l00910" name="l00910"></a><span class="lineno">  910</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00911" name="l00911"></a><span class="lineno">  911</span><span class="comment">   * @todo Peer_socket::Int_state will also include various states on way to a graceful close, once we implement that.</span></div>
-<div class="line"><a id="l00912" name="l00912"></a><span class="lineno">  912</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00913" name="l00913"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">  913</a></span>  <span class="keyword">enum class</span> <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">Int_state</a></div>
-<div class="line"><a id="l00914" name="l00914"></a><span class="lineno">  914</span>  {<span class="comment"></span></div>
-<div class="line"><a id="l00915" name="l00915"></a><span class="lineno">  915</span><span class="comment">    /// Closed (dead or new) socket.</span></div>
-<div class="line"><a id="l00916" name="l00916"></a><span class="lineno">  916</span><span class="comment"></span>    S_CLOSED,</div>
-<div class="line"><a id="l00917" name="l00917"></a><span class="lineno">  917</span><span class="comment"></span> </div>
-<div class="line"><a id="l00918" name="l00918"></a><span class="lineno">  918</span><span class="comment">    /**</span></div>
-<div class="line"><a id="l00919" name="l00919"></a><span class="lineno">  919</span><span class="comment">     * Public state is OPEN+CONNECTING; user requested active connect; we sent SYN and are</span></div>
-<div class="line"><a id="l00920" name="l00920"></a><span class="lineno">  920</span><span class="comment">     * awaiting response.</span></div>
-<div class="line"><a id="l00921" name="l00921"></a><span class="lineno">  921</span><span class="comment">     */</span></div>
-<div class="line"><a id="l00922" name="l00922"></a><span class="lineno">  922</span>    S_SYN_SENT,</div>
-<div class="line"><a id="l00923" name="l00923"></a><span class="lineno">  923</span><span class="comment"></span> </div>
-<div class="line"><a id="l00924" name="l00924"></a><span class="lineno">  924</span><span class="comment">    /**</span></div>
-<div class="line"><a id="l00925" name="l00925"></a><span class="lineno">  925</span><span class="comment">     * Public state is OPEN+CONNECTING; other side requested passive connect via SYN; we sent</span></div>
-<div class="line"><a id="l00926" name="l00926"></a><span class="lineno">  926</span><span class="comment">     * SYN_ACK and are awaiting response.</span></div>
-<div class="line"><a id="l00927" name="l00927"></a><span class="lineno">  927</span><span class="comment">     */</span></div>
-<div class="line"><a id="l00928" name="l00928"></a><span class="lineno">  928</span>    S_SYN_RCVD,</div>
-<div class="line"><a id="l00929" name="l00929"></a><span class="lineno">  929</span><span class="comment"></span> </div>
-<div class="line"><a id="l00930" name="l00930"></a><span class="lineno">  930</span><span class="comment">    /// Public state is OPEN+CONNECTED; in our opinion the connection is established.</span></div>
-<div class="line"><a id="l00931" name="l00931"></a><span class="lineno">  931</span><span class="comment"></span>    S_ESTABLISHED</div>
-<div class="line"><a id="l00932" name="l00932"></a><span class="lineno">  932</span>  }; <span class="comment">// enum class Int_state</span></div>
-<div class="line"><a id="l00933" name="l00933"></a><span class="lineno">  933</span> </div>
-<div class="line"><a id="l00934" name="l00934"></a><span class="lineno">  934</span>  <span class="comment">// Friend of Peer_socket: For access to private alias Int_state.</span></div>
-<div class="line"><a id="l00935" name="l00935"></a><span class="lineno">  935</span>  <span class="keyword">friend</span> std::ostream&amp; <a class="code hl_friend" href="classflow_1_1net__flow_1_1Peer__socket.html#a03ea7069aa4779abaf274989bd4c2fb6">operator&lt;&lt;</a>(std::ostream&amp; os, <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">Int_state</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#af982953b5136c1df488066eacc293a78">state</a>);</div>
-<div class="line"><a id="l00936" name="l00936"></a><span class="lineno">  936</span> </div>
-<div class="line"><a id="l00937" name="l00937"></a><span class="lineno">  937</span>  <span class="keyword">struct </span>Sent_packet;</div>
-<div class="line"><a id="l00938" name="l00938"></a><span class="lineno">  938</span><span class="comment"></span> </div>
-<div class="line"><a id="l00939" name="l00939"></a><span class="lineno">  939</span><span class="comment">  /// Short-hand for #m_snd_flying_pkts_by_sent_when type; see that data member.</span></div>
-<div class="line"><a id="l00940" name="l00940"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad10b3cd1d32b48cab8146ba4d07cb814">  940</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_class" href="classflow_1_1util_1_1Linked__hash__map.html">Sent_pkt_by_sent_when_map</a> = <a class="code hl_class" href="classflow_1_1util_1_1Linked__hash__map.html">util::Linked_hash_map&lt;Sequence_number, boost::shared_ptr&lt;Sent_packet&gt;</a>&gt;;</div>
-<div class="line"><a id="l00941" name="l00941"></a><span class="lineno">  941</span><span class="comment"></span> </div>
-<div class="line"><a id="l00942" name="l00942"></a><span class="lineno">  942</span><span class="comment">  /// Short-hand for #m_snd_flying_pkts_by_sent_when `const` iterator type.</span></div>
-<div class="line"><a id="l00943" name="l00943"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">  943</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">Sent_pkt_ordered_by_when_const_iter</a> = <a class="code hl_typedef" href="classflow_1_1util_1_1Linked__hash__map.html#a2b5383264c89ac63cc8827b18063f2ca">Sent_pkt_by_sent_when_map::const_iterator</a>;</div>
-<div class="line"><a id="l00944" name="l00944"></a><span class="lineno">  944</span><span class="comment"></span> </div>
-<div class="line"><a id="l00945" name="l00945"></a><span class="lineno">  945</span><span class="comment">  /// Short-hand for #m_snd_flying_pkts_by_sent_when iterator type.</span></div>
-<div class="line"><a id="l00946" name="l00946"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">  946</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Sent_pkt_ordered_by_when_iter</a> = <a class="code hl_typedef" href="classflow_1_1util_1_1Linked__hash__map.html#a1f09f98b4089a8c3ffd0b7f732923b44">Sent_pkt_by_sent_when_map::iterator</a>;</div>
-<div class="line"><a id="l00947" name="l00947"></a><span class="lineno">  947</span><span class="comment"></span> </div>
-<div class="line"><a id="l00948" name="l00948"></a><span class="lineno">  948</span><span class="comment">  /// Short-hand for #m_snd_flying_pkts_by_seq_num type; see that data member.</span></div>
-<div class="line"><a id="l00949" name="l00949"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a1958264af0c40f3c9c5769ddff4c9ade">  949</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1958264af0c40f3c9c5769ddff4c9ade">Sent_pkt_by_seq_num_map</a> = std::map&lt;Sequence_number, Sent_pkt_ordered_by_when_iter&gt;;</div>
-<div class="line"><a id="l00950" name="l00950"></a><span class="lineno">  950</span><span class="comment"></span> </div>
-<div class="line"><a id="l00951" name="l00951"></a><span class="lineno">  951</span><span class="comment">  /// Short-hand for #m_snd_flying_pkts_by_seq_num `const` iterator type.</span></div>
-<div class="line"><a id="l00952" name="l00952"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#abd6f3174914c3ec559954b4125f2f9dd">  952</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#abd6f3174914c3ec559954b4125f2f9dd">Sent_pkt_ordered_by_seq_const_iter</a> = Sent_pkt_by_seq_num_map::const_iterator;</div>
-<div class="line"><a id="l00953" name="l00953"></a><span class="lineno">  953</span><span class="comment"></span> </div>
-<div class="line"><a id="l00954" name="l00954"></a><span class="lineno">  954</span><span class="comment">  /// Short-hand for #m_snd_flying_pkts_by_seq_num iterator type.</span></div>
-<div class="line"><a id="l00955" name="l00955"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a9320421e96ab89e6528da6a28b008709">  955</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a9320421e96ab89e6528da6a28b008709">Sent_pkt_ordered_by_seq_iter</a> = Sent_pkt_by_seq_num_map::iterator;</div>
-<div class="line"><a id="l00956" name="l00956"></a><span class="lineno">  956</span> </div>
-<div class="line"><a id="l00957" name="l00957"></a><span class="lineno">  957</span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html">Received_packet</a>;</div>
-<div class="line"><a id="l00958" name="l00958"></a><span class="lineno">  958</span><span class="comment"></span> </div>
-<div class="line"><a id="l00959" name="l00959"></a><span class="lineno">  959</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00960" name="l00960"></a><span class="lineno">  960</span><span class="comment">   * Short-hand for #m_rcv_packets_with_gaps type; see that data member.  `struct`s are stored via</span></div>
-<div class="line"><a id="l00961" name="l00961"></a><span class="lineno">  961</span><span class="comment">   * shared pointers instead of as direct objects to minimize copying of potentially heavy-weight</span></div>
-<div class="line"><a id="l00962" name="l00962"></a><span class="lineno">  962</span><span class="comment">   * data.  They are stored as shared pointers instead of as raw pointers to avoid having to</span></div>
-<div class="line"><a id="l00963" name="l00963"></a><span class="lineno">  963</span><span class="comment">   * worry about `delete`.</span></div>
-<div class="line"><a id="l00964" name="l00964"></a><span class="lineno">  964</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00965" name="l00965"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#addfc181f4d43ab816b2ede9216bf9331">  965</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#addfc181f4d43ab816b2ede9216bf9331">Recvd_pkt_map</a> = std::map&lt;Sequence_number, boost::shared_ptr&lt;Received_packet&gt;&gt;;</div>
-<div class="line"><a id="l00966" name="l00966"></a><span class="lineno">  966</span><span class="comment"></span> </div>
-<div class="line"><a id="l00967" name="l00967"></a><span class="lineno">  967</span><span class="comment">  /// Short-hand for #m_rcv_packets_with_gaps `const` iterator type.</span></div>
-<div class="line"><a id="l00968" name="l00968"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ade41e13eb5176d833c7b1ea144612353">  968</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ade41e13eb5176d833c7b1ea144612353">Recvd_pkt_const_iter</a> = Recvd_pkt_map::const_iterator;</div>
-<div class="line"><a id="l00969" name="l00969"></a><span class="lineno">  969</span><span class="comment"></span> </div>
-<div class="line"><a id="l00970" name="l00970"></a><span class="lineno">  970</span><span class="comment">  /// Short-hand for #m_rcv_packets_with_gaps iterator type.</span></div>
-<div class="line"><a id="l00971" name="l00971"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aaec992a7a14368623cc03c4382d71107">  971</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#aaec992a7a14368623cc03c4382d71107">Recvd_pkt_iter</a> = Recvd_pkt_map::iterator;</div>
-<div class="line"><a id="l00972" name="l00972"></a><span class="lineno">  972</span> </div>
-<div class="line"><a id="l00973" name="l00973"></a><span class="lineno">  973</span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">Individual_ack</a>;</div>
-<div class="line"><a id="l00974" name="l00974"></a><span class="lineno">  974</span><span class="comment"></span> </div>
-<div class="line"><a id="l00975" name="l00975"></a><span class="lineno">  975</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00976" name="l00976"></a><span class="lineno">  976</span><span class="comment">   * Type used for #m_rcv_syn_rcvd_data_q.  Using `vector` because we only need `push_back()` and</span></div>
-<div class="line"><a id="l00977" name="l00977"></a><span class="lineno">  977</span><span class="comment">   * iteration at the moment.  Using pointer to non-`const` instead of `const` because when we actually handle the</span></div>
-<div class="line"><a id="l00978" name="l00978"></a><span class="lineno">  978</span><span class="comment">   * packet as received we will need to be able to modify the packet for performance (see</span></div>
-<div class="line"><a id="l00979" name="l00979"></a><span class="lineno">  979</span><span class="comment">   * Node::handle_data_to_established(), when it transfers data to Receive buffer).</span></div>
-<div class="line"><a id="l00980" name="l00980"></a><span class="lineno">  980</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00981" name="l00981"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a1869760d5cfc5c0d22665e5db88710e4">  981</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1869760d5cfc5c0d22665e5db88710e4">Rcv_syn_rcvd_data_q</a> = std::vector&lt;boost::shared_ptr&lt;Data_packet&gt;&gt;;</div>
-<div class="line"><a id="l00982" name="l00982"></a><span class="lineno">  982</span> </div>
-<div class="line"><a id="l00983" name="l00983"></a><span class="lineno">  983</span>  <span class="comment">/* Methods: as few as possible.  Logic should reside in class Node as discussed (though</span></div>
-<div class="line"><a id="l00984" name="l00984"></a><span class="lineno">  984</span><span class="comment">   * implementation may be in peer_socket.cpp).  See rationale in class Peer_socket</span></div>
-<div class="line"><a id="l00985" name="l00985"></a><span class="lineno">  985</span><span class="comment">   * documentation header. */</span></div>
-<div class="line"><a id="l00986" name="l00986"></a><span class="lineno">  986</span><span class="comment"></span> </div>
-<div class="line"><a id="l00987" name="l00987"></a><span class="lineno">  987</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00988" name="l00988"></a><span class="lineno">  988</span><span class="comment">   * Non-template helper for template send() that forwards the send() logic to Node::send().  Would</span></div>
-<div class="line"><a id="l00989" name="l00989"></a><span class="lineno">  989</span><span class="comment">   * be pointless to try to explain more here; see code and how it&#39;s used.  Anyway, this has to be</span></div>
-<div class="line"><a id="l00990" name="l00990"></a><span class="lineno">  990</span><span class="comment">   * in this class.</span></div>
-<div class="line"><a id="l00991" name="l00991"></a><span class="lineno">  991</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00992" name="l00992"></a><span class="lineno">  992</span><span class="comment">   * @param snd_buf_feed_func</span></div>
-<div class="line"><a id="l00993" name="l00993"></a><span class="lineno">  993</span><span class="comment">   *        Function that will perform and return `m_snd_buf-&gt;feed(...)`.  See send().</span></div>
-<div class="line"><a id="l00994" name="l00994"></a><span class="lineno">  994</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l00995" name="l00995"></a><span class="lineno">  995</span><span class="comment">   *        See send().</span></div>
-<div class="line"><a id="l00996" name="l00996"></a><span class="lineno">  996</span><span class="comment">   * @return Value to be returned by calling Node::send().</span></div>
-<div class="line"><a id="l00997" name="l00997"></a><span class="lineno">  997</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00998" name="l00998"></a><span class="lineno">  998</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a83ba2b4c39555afad67932ea6ed39bbe">node_send</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keywordtype">size_t</span> (<span class="keywordtype">size_t</span> max_data_size)&gt;&amp; snd_buf_feed_func,</div>
-<div class="line"><a id="l00999" name="l00999"></a><span class="lineno">  999</span>                   <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
-<div class="line"><a id="l01000" name="l01000"></a><span class="lineno"> 1000</span><span class="comment"></span> </div>
-<div class="line"><a id="l01001" name="l01001"></a><span class="lineno"> 1001</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01002" name="l01002"></a><span class="lineno"> 1002</span><span class="comment">   * Same as sync_send() but uses a #Fine_clock-based #Fine_duration non-template type for</span></div>
-<div class="line"><a id="l01003" name="l01003"></a><span class="lineno"> 1003</span><span class="comment">   * implementation convenience and to avoid code bloat to specify timeout.</span></div>
-<div class="line"><a id="l01004" name="l01004"></a><span class="lineno"> 1004</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01005" name="l01005"></a><span class="lineno"> 1005</span><span class="comment">   * @tparam Const_buffer_sequence</span></div>
-<div class="line"><a id="l01006" name="l01006"></a><span class="lineno"> 1006</span><span class="comment">   *         See sync_send().</span></div>
-<div class="line"><a id="l01007" name="l01007"></a><span class="lineno"> 1007</span><span class="comment">   * @param data</span></div>
-<div class="line"><a id="l01008" name="l01008"></a><span class="lineno"> 1008</span><span class="comment">   *        See sync_send().</span></div>
-<div class="line"><a id="l01009" name="l01009"></a><span class="lineno"> 1009</span><span class="comment">   * @param wait_until</span></div>
-<div class="line"><a id="l01010" name="l01010"></a><span class="lineno"> 1010</span><span class="comment">   *        See `sync_send(timeout)`.  This is the absolute time point corresponding to that.</span></div>
-<div class="line"><a id="l01011" name="l01011"></a><span class="lineno"> 1011</span><span class="comment">   *        `&quot;duration&lt;Rep, Period&gt;::max()&quot;` maps to the value `Fine_time_pt()` (Epoch) for this argument.</span></div>
-<div class="line"><a id="l01012" name="l01012"></a><span class="lineno"> 1012</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l01013" name="l01013"></a><span class="lineno"> 1013</span><span class="comment">   *        See sync_send().</span></div>
-<div class="line"><a id="l01014" name="l01014"></a><span class="lineno"> 1014</span><span class="comment">   * @return See sync_send().</span></div>
-<div class="line"><a id="l01015" name="l01015"></a><span class="lineno"> 1015</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01016" name="l01016"></a><span class="lineno"> 1016</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
-<div class="line"><a id="l01017" name="l01017"></a><span class="lineno"> 1017</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a3f1a802024549a59978a53343b09a86d">sync_send_impl</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until,</div>
-<div class="line"><a id="l01018" name="l01018"></a><span class="lineno"> 1018</span>                        <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
-<div class="line"><a id="l01019" name="l01019"></a><span class="lineno"> 1019</span><span class="comment"></span> </div>
-<div class="line"><a id="l01020" name="l01020"></a><span class="lineno"> 1020</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01021" name="l01021"></a><span class="lineno"> 1021</span><span class="comment">   * Helper similar to sync_send_impl() but for the `null_buffers` versions of `sync_send()`.</span></div>
-<div class="line"><a id="l01022" name="l01022"></a><span class="lineno"> 1022</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01023" name="l01023"></a><span class="lineno"> 1023</span><span class="comment">   * @param wait_until</span></div>
-<div class="line"><a id="l01024" name="l01024"></a><span class="lineno"> 1024</span><span class="comment">   *        See sync_send_impl().</span></div>
-<div class="line"><a id="l01025" name="l01025"></a><span class="lineno"> 1025</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l01026" name="l01026"></a><span class="lineno"> 1026</span><span class="comment">   *        See sync_send_impl().</span></div>
-<div class="line"><a id="l01027" name="l01027"></a><span class="lineno"> 1027</span><span class="comment">   * @return See `sync_send(null_buffers)`.  `true` if and only if Writable status successfuly reached in time.</span></div>
-<div class="line"><a id="l01028" name="l01028"></a><span class="lineno"> 1028</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01029" name="l01029"></a><span class="lineno"> 1029</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a15ba1d4af6d4e3fcab9534a307c00595">sync_send_reactor_pattern_impl</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
-<div class="line"><a id="l01030" name="l01030"></a><span class="lineno"> 1030</span><span class="comment"></span> </div>
-<div class="line"><a id="l01031" name="l01031"></a><span class="lineno"> 1031</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01032" name="l01032"></a><span class="lineno"> 1032</span><span class="comment">   * This is to sync_send() as node_send() is to send().</span></div>
-<div class="line"><a id="l01033" name="l01033"></a><span class="lineno"> 1033</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01034" name="l01034"></a><span class="lineno"> 1034</span><span class="comment">   * @param snd_buf_feed_func_or_empty</span></div>
-<div class="line"><a id="l01035" name="l01035"></a><span class="lineno"> 1035</span><span class="comment">   *        See node_send().  Additionally, if this is `.empty()` then `null_buffers` a/k/a &quot;reactor pattern&quot; mode is</span></div>
-<div class="line"><a id="l01036" name="l01036"></a><span class="lineno"> 1036</span><span class="comment">   *        engaged.</span></div>
-<div class="line"><a id="l01037" name="l01037"></a><span class="lineno"> 1037</span><span class="comment">   * @param wait_until</span></div>
-<div class="line"><a id="l01038" name="l01038"></a><span class="lineno"> 1038</span><span class="comment">   *        See sync_send_impl().</span></div>
-<div class="line"><a id="l01039" name="l01039"></a><span class="lineno"> 1039</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l01040" name="l01040"></a><span class="lineno"> 1040</span><span class="comment">   *        See sync_send().</span></div>
-<div class="line"><a id="l01041" name="l01041"></a><span class="lineno"> 1041</span><span class="comment">   * @return See sync_send().</span></div>
-<div class="line"><a id="l01042" name="l01042"></a><span class="lineno"> 1042</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01043" name="l01043"></a><span class="lineno"> 1043</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a34e2c7dfb5596269a6f86a716015f1a6">node_sync_send</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keywordtype">size_t</span> (<span class="keywordtype">size_t</span> max_data_size)&gt;&amp; snd_buf_feed_func_or_empty,</div>
-<div class="line"><a id="l01044" name="l01044"></a><span class="lineno"> 1044</span>                        <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until,</div>
-<div class="line"><a id="l01045" name="l01045"></a><span class="lineno"> 1045</span>                        <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
-<div class="line"><a id="l01046" name="l01046"></a><span class="lineno"> 1046</span><span class="comment"></span> </div>
-<div class="line"><a id="l01047" name="l01047"></a><span class="lineno"> 1047</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01048" name="l01048"></a><span class="lineno"> 1048</span><span class="comment">   * Non-template helper for template receive() that forwards the receive() logic to</span></div>
-<div class="line"><a id="l01049" name="l01049"></a><span class="lineno"> 1049</span><span class="comment">   * Node::receive().  Would be pointless to try to explain more here; see code and how it&#39;s used.</span></div>
-<div class="line"><a id="l01050" name="l01050"></a><span class="lineno"> 1050</span><span class="comment">   * Anyway, this has to be in this class.</span></div>
-<div class="line"><a id="l01051" name="l01051"></a><span class="lineno"> 1051</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01052" name="l01052"></a><span class="lineno"> 1052</span><span class="comment">   * @param rcv_buf_consume_func</span></div>
-<div class="line"><a id="l01053" name="l01053"></a><span class="lineno"> 1053</span><span class="comment">   *        Function that will perform and return `m_rcv_buf-&gt;consume(...)`.  See receive().</span></div>
-<div class="line"><a id="l01054" name="l01054"></a><span class="lineno"> 1054</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l01055" name="l01055"></a><span class="lineno"> 1055</span><span class="comment">   *        See receive().</span></div>
-<div class="line"><a id="l01056" name="l01056"></a><span class="lineno"> 1056</span><span class="comment">   * @return Value to be returned by calling Node::receive().</span></div>
-<div class="line"><a id="l01057" name="l01057"></a><span class="lineno"> 1057</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01058" name="l01058"></a><span class="lineno"> 1058</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#af3ac1b0b3c9b1c3a5ec246148595c657">node_receive</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keywordtype">size_t</span> ()&gt;&amp; rcv_buf_consume_func,</div>
-<div class="line"><a id="l01059" name="l01059"></a><span class="lineno"> 1059</span>                      <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
-<div class="line"><a id="l01060" name="l01060"></a><span class="lineno"> 1060</span><span class="comment"></span> </div>
-<div class="line"><a id="l01061" name="l01061"></a><span class="lineno"> 1061</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01062" name="l01062"></a><span class="lineno"> 1062</span><span class="comment">   * Same as sync_receive() but uses a #Fine_clock-based #Fine_duration non-template type</span></div>
-<div class="line"><a id="l01063" name="l01063"></a><span class="lineno"> 1063</span><span class="comment">   * for implementation convenience and to avoid code bloat to specify timeout.</span></div>
-<div class="line"><a id="l01064" name="l01064"></a><span class="lineno"> 1064</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01065" name="l01065"></a><span class="lineno"> 1065</span><span class="comment">   * @tparam Block_sequence</span></div>
-<div class="line"><a id="l01066" name="l01066"></a><span class="lineno"> 1066</span><span class="comment">   *         See sync_receive().</span></div>
-<div class="line"><a id="l01067" name="l01067"></a><span class="lineno"> 1067</span><span class="comment">   * @param target</span></div>
-<div class="line"><a id="l01068" name="l01068"></a><span class="lineno"> 1068</span><span class="comment">   *        See sync_receive().</span></div>
-<div class="line"><a id="l01069" name="l01069"></a><span class="lineno"> 1069</span><span class="comment">   * @param wait_until</span></div>
-<div class="line"><a id="l01070" name="l01070"></a><span class="lineno"> 1070</span><span class="comment">   *        See `sync_receive(timeout)`.  This is the absolute time point corresponding to that.</span></div>
-<div class="line"><a id="l01071" name="l01071"></a><span class="lineno"> 1071</span><span class="comment">   *        `&quot;duration&lt;Rep, Period&gt;::max()&quot;` maps to the value `Fine_time_pt()` (Epoch) for this argument.</span></div>
-<div class="line"><a id="l01072" name="l01072"></a><span class="lineno"> 1072</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l01073" name="l01073"></a><span class="lineno"> 1073</span><span class="comment">   *        See sync_receive().</span></div>
-<div class="line"><a id="l01074" name="l01074"></a><span class="lineno"> 1074</span><span class="comment">   * @return See sync_receive().</span></div>
-<div class="line"><a id="l01075" name="l01075"></a><span class="lineno"> 1075</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01076" name="l01076"></a><span class="lineno"> 1076</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
-<div class="line"><a id="l01077" name="l01077"></a><span class="lineno"> 1077</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#ad29f61b9885b10ddc3846cdae0560518">sync_receive_impl</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target,</div>
-<div class="line"><a id="l01078" name="l01078"></a><span class="lineno"> 1078</span>                           <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
-<div class="line"><a id="l01079" name="l01079"></a><span class="lineno"> 1079</span><span class="comment"></span> </div>
-<div class="line"><a id="l01080" name="l01080"></a><span class="lineno"> 1080</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01081" name="l01081"></a><span class="lineno"> 1081</span><span class="comment">   * Helper similar to sync_receive_impl() but for the `null_buffers` versions of `sync_receive()`.</span></div>
-<div class="line"><a id="l01082" name="l01082"></a><span class="lineno"> 1082</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01083" name="l01083"></a><span class="lineno"> 1083</span><span class="comment">   * @param wait_until</span></div>
-<div class="line"><a id="l01084" name="l01084"></a><span class="lineno"> 1084</span><span class="comment">   *        See sync_receive_impl().</span></div>
-<div class="line"><a id="l01085" name="l01085"></a><span class="lineno"> 1085</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span><span class="comment">   *        See sync_receive_impl().</span></div>
-<div class="line"><a id="l01087" name="l01087"></a><span class="lineno"> 1087</span><span class="comment">   * @return See `sync_receive(null_buffers)`.  `true` if and only if Readable status successfuly reached in time.</span></div>
-<div class="line"><a id="l01088" name="l01088"></a><span class="lineno"> 1088</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01089" name="l01089"></a><span class="lineno"> 1089</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a1a2eccfa314a397c12259f414ef6798c">sync_receive_reactor_pattern_impl</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
-<div class="line"><a id="l01090" name="l01090"></a><span class="lineno"> 1090</span><span class="comment"></span> </div>
-<div class="line"><a id="l01091" name="l01091"></a><span class="lineno"> 1091</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01092" name="l01092"></a><span class="lineno"> 1092</span><span class="comment">   * This is to sync_receive() as node_receive() is to receive().</span></div>
-<div class="line"><a id="l01093" name="l01093"></a><span class="lineno"> 1093</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01094" name="l01094"></a><span class="lineno"> 1094</span><span class="comment">   * @param rcv_buf_consume_func_or_empty</span></div>
-<div class="line"><a id="l01095" name="l01095"></a><span class="lineno"> 1095</span><span class="comment">   *        See node_receive().  Additionally, if this is `.empty()` then `null_buffers` a/k/a &quot;reactor pattern&quot; mode is</span></div>
-<div class="line"><a id="l01096" name="l01096"></a><span class="lineno"> 1096</span><span class="comment">   *        engaged.</span></div>
-<div class="line"><a id="l01097" name="l01097"></a><span class="lineno"> 1097</span><span class="comment">   * @param wait_until</span></div>
-<div class="line"><a id="l01098" name="l01098"></a><span class="lineno"> 1098</span><span class="comment">   *        See sync_receive_impl().</span></div>
-<div class="line"><a id="l01099" name="l01099"></a><span class="lineno"> 1099</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l01100" name="l01100"></a><span class="lineno"> 1100</span><span class="comment">   *        See sync_receive().</span></div>
-<div class="line"><a id="l01101" name="l01101"></a><span class="lineno"> 1101</span><span class="comment">   * @return See sync_receive().</span></div>
-<div class="line"><a id="l01102" name="l01102"></a><span class="lineno"> 1102</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01103" name="l01103"></a><span class="lineno"> 1103</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a8abde92d5189bf2a058fe8741789f814">node_sync_receive</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keywordtype">size_t</span> ()&gt;&amp; rcv_buf_consume_func_or_empty,</div>
-<div class="line"><a id="l01104" name="l01104"></a><span class="lineno"> 1104</span>                           <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until,</div>
-<div class="line"><a id="l01105" name="l01105"></a><span class="lineno"> 1105</span>                           <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
-<div class="line"><a id="l01106" name="l01106"></a><span class="lineno"> 1106</span><span class="comment"></span> </div>
-<div class="line"><a id="l01107" name="l01107"></a><span class="lineno"> 1107</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01108" name="l01108"></a><span class="lineno"> 1108</span><span class="comment">   * Analogous to Node::opt() but for per-socket options.  See that method.</span></div>
-<div class="line"><a id="l01109" name="l01109"></a><span class="lineno"> 1109</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01110" name="l01110"></a><span class="lineno"> 1110</span><span class="comment">   * Do NOT read option values without opt().</span></div>
-<div class="line"><a id="l01111" name="l01111"></a><span class="lineno"> 1111</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01112" name="l01112"></a><span class="lineno"> 1112</span><span class="comment">   * @tparam Opt_type</span></div>
-<div class="line"><a id="l01113" name="l01113"></a><span class="lineno"> 1113</span><span class="comment">   *         The type of the option data member.</span></div>
-<div class="line"><a id="l01114" name="l01114"></a><span class="lineno"> 1114</span><span class="comment">   * @param opt_val_ref</span></div>
-<div class="line"><a id="l01115" name="l01115"></a><span class="lineno"> 1115</span><span class="comment">   *        A reference (important!) to the value you want; this may be either a data member of</span></div>
-<div class="line"><a id="l01116" name="l01116"></a><span class="lineno"> 1116</span><span class="comment">   *        this-&gt;m_opts or the entire this-&gt;m_opts itself.</span></div>
-<div class="line"><a id="l01117" name="l01117"></a><span class="lineno"> 1117</span><span class="comment">   * @return A copy of the value at the given reference.</span></div>
-<div class="line"><a id="l01118" name="l01118"></a><span class="lineno"> 1118</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01119" name="l01119"></a><span class="lineno"> 1119</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Opt_type&gt;</div>
-<div class="line"><a id="l01120" name="l01120"></a><span class="lineno"> 1120</span>  Opt_type <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#accf6d724ed1f145716ae3d4567f582f3">opt</a>(<span class="keyword">const</span> Opt_type&amp; opt_val_ref) <span class="keyword">const</span>;</div>
-<div class="line"><a id="l01121" name="l01121"></a><span class="lineno"> 1121</span><span class="comment"></span> </div>
-<div class="line"><a id="l01122" name="l01122"></a><span class="lineno"> 1122</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01123" name="l01123"></a><span class="lineno"> 1123</span><span class="comment">   * Returns the smallest multiple of max_block_size() that is &gt;= the given option value, optionally</span></div>
-<div class="line"><a id="l01124" name="l01124"></a><span class="lineno"> 1124</span><span class="comment">   * first inflated by a certain %.  The intended use case is to obtain a Send of Receive buffer max</span></div>
-<div class="line"><a id="l01125" name="l01125"></a><span class="lineno"> 1125</span><span class="comment">   * size that is about equal to the user-specified (or otherwise obtained) value, in bytes, but is</span></div>
-<div class="line"><a id="l01126" name="l01126"></a><span class="lineno"> 1126</span><span class="comment">   * a multiple of max-block-size -- to prevent fragmenting max-block-size-sized chunks of data unnecessarily -- and</span></div>
-<div class="line"><a id="l01127" name="l01127"></a><span class="lineno"> 1127</span><span class="comment">   * to possibly inflate that value by a certain percentage for subtle flow control reasons.</span></div>
-<div class="line"><a id="l01128" name="l01128"></a><span class="lineno"> 1128</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01129" name="l01129"></a><span class="lineno"> 1129</span><span class="comment">   * @param opt_val_ref</span></div>
-<div class="line"><a id="l01130" name="l01130"></a><span class="lineno"> 1130</span><span class="comment">   *        A reference to a `size_t`-sized socket option, as would be passed to opt().  See opt().</span></div>
-<div class="line"><a id="l01131" name="l01131"></a><span class="lineno"> 1131</span><span class="comment">   *        This is the starting value.</span></div>
-<div class="line"><a id="l01132" name="l01132"></a><span class="lineno"> 1132</span><span class="comment">   * @param inflate_pct_val_ptr</span></div>
-<div class="line"><a id="l01133" name="l01133"></a><span class="lineno"> 1133</span><span class="comment">   *        A pointer to an `unsigned int`-sized socket option, as would be passed to opt().  See</span></div>
-<div class="line"><a id="l01134" name="l01134"></a><span class="lineno"> 1134</span><span class="comment">   *        opt().  This is the % by which to inflate opt_val_ref before rounding up to nearest</span></div>
-<div class="line"><a id="l01135" name="l01135"></a><span class="lineno"> 1135</span><span class="comment">   *        max_block_size() multiple.  If null, the % is assumed to be 0.</span></div>
-<div class="line"><a id="l01136" name="l01136"></a><span class="lineno"> 1136</span><span class="comment">   * @return See above.</span></div>
-<div class="line"><a id="l01137" name="l01137"></a><span class="lineno"> 1137</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01138" name="l01138"></a><span class="lineno"> 1138</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a102b78eaac9c8add512238ec5f26fcfc">max_block_size_multiple</a>(<span class="keyword">const</span> <span class="keywordtype">size_t</span>&amp; opt_val_ref,</div>
-<div class="line"><a id="l01139" name="l01139"></a><span class="lineno"> 1139</span>                                 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>* inflate_pct_val_ptr = 0) <span class="keyword">const</span>;</div>
-<div class="line"><a id="l01140" name="l01140"></a><span class="lineno"> 1140</span><span class="comment"></span> </div>
-<div class="line"><a id="l01141" name="l01141"></a><span class="lineno"> 1141</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01142" name="l01142"></a><span class="lineno"> 1142</span><span class="comment">   * Whether retransmission is enabled on this connection.  Short-hand for appropriate opt() call.</span></div>
-<div class="line"><a id="l01143" name="l01143"></a><span class="lineno"> 1143</span><span class="comment">   * Note this always returns the same value for a given object.</span></div>
-<div class="line"><a id="l01144" name="l01144"></a><span class="lineno"> 1144</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01145" name="l01145"></a><span class="lineno"> 1145</span><span class="comment">   * @return Ditto.</span></div>
-<div class="line"><a id="l01146" name="l01146"></a><span class="lineno"> 1146</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01147" name="l01147"></a><span class="lineno"> 1147</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>() <span class="keyword">const</span>;</div>
-<div class="line"><a id="l01148" name="l01148"></a><span class="lineno"> 1148</span><span class="comment"></span> </div>
-<div class="line"><a id="l01149" name="l01149"></a><span class="lineno"> 1149</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01150" name="l01150"></a><span class="lineno"> 1150</span><span class="comment">   * Helper that is equivalent to Node::ensure_sock_open(this, err_code).  Used by templated</span></div>
-<div class="line"><a id="l01151" name="l01151"></a><span class="lineno"> 1151</span><span class="comment">   * methods which must be defined in this header file, which means they cannot access Node members</span></div>
-<div class="line"><a id="l01152" name="l01152"></a><span class="lineno"> 1152</span><span class="comment">   * directly, as Node is an incomplete type.</span></div>
-<div class="line"><a id="l01153" name="l01153"></a><span class="lineno"> 1153</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01154" name="l01154"></a><span class="lineno"> 1154</span><span class="comment">   * @param err_code</span></div>
-<div class="line"><a id="l01155" name="l01155"></a><span class="lineno"> 1155</span><span class="comment">   *        See Node::ensure_sock_open().</span></div>
-<div class="line"><a id="l01156" name="l01156"></a><span class="lineno"> 1156</span><span class="comment">   * @return See Node::ensure_sock_open().</span></div>
-<div class="line"><a id="l01157" name="l01157"></a><span class="lineno"> 1157</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01158" name="l01158"></a><span class="lineno"> 1158</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#ac7cbefb99ae173bd5f355f5d082564ce">ensure_open</a>(<a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code) <span class="keyword">const</span>;</div>
-<div class="line"><a id="l01159" name="l01159"></a><span class="lineno"> 1159</span><span class="comment"></span> </div>
-<div class="line"><a id="l01160" name="l01160"></a><span class="lineno"> 1160</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01161" name="l01161"></a><span class="lineno"> 1161</span><span class="comment">   * Helper that, given a byte count, returns a string with that byte count and the number of</span></div>
-<div class="line"><a id="l01162" name="l01162"></a><span class="lineno"> 1162</span><span class="comment">   * max_block_size()-size blocks that can fit within it (rounded down).</span></div>
-<div class="line"><a id="l01163" name="l01163"></a><span class="lineno"> 1163</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01164" name="l01164"></a><span class="lineno"> 1164</span><span class="comment">   * @param bytes</span></div>
-<div class="line"><a id="l01165" name="l01165"></a><span class="lineno"> 1165</span><span class="comment">   * @return See above.</span></div>
-<div class="line"><a id="l01166" name="l01166"></a><span class="lineno"> 1166</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01167" name="l01167"></a><span class="lineno"> 1167</span>  std::string <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#acd100a3c02fad5d9e00fcbc1f645f116">bytes_blocks_str</a>(<span class="keywordtype">size_t</span> bytes) <span class="keyword">const</span>;</div>
-<div class="line"><a id="l01168" name="l01168"></a><span class="lineno"> 1168</span> </div>
-<div class="line"><a id="l01169" name="l01169"></a><span class="lineno"> 1169</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l01170" name="l01170"></a><span class="lineno"> 1170</span><span class="comment"></span> </div>
-<div class="line"><a id="l01171" name="l01171"></a><span class="lineno"> 1171</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01172" name="l01172"></a><span class="lineno"> 1172</span><span class="comment">   * This socket&#39;s per-socket set of options.  Initialized at construction; can be subsequently</span></div>
-<div class="line"><a id="l01173" name="l01173"></a><span class="lineno"> 1173</span><span class="comment">   * modified by set_options(), although only the dynamic members of this may be modified.</span></div>
-<div class="line"><a id="l01174" name="l01174"></a><span class="lineno"> 1174</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01175" name="l01175"></a><span class="lineno"> 1175</span><span class="comment">   * Accessed from thread W and user thread U != W.  Protected by #m_opts_mutex.  When reading, do</span></div>
-<div class="line"><a id="l01176" name="l01176"></a><span class="lineno"> 1176</span><span class="comment">   * NOT access without locking (which is encapsulated in opt()).</span></div>
-<div class="line"><a id="l01177" name="l01177"></a><span class="lineno"> 1177</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01178" name="l01178"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad59c09f34003873a3c207cc590236773"> 1178</a></span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ad59c09f34003873a3c207cc590236773">m_opts</a>;</div>
-<div class="line"><a id="l01179" name="l01179"></a><span class="lineno"> 1179</span><span class="comment"></span> </div>
-<div class="line"><a id="l01180" name="l01180"></a><span class="lineno"> 1180</span><span class="comment">  /// The mutex protecting #m_opts.</span></div>
-<div class="line"><a id="l01181" name="l01181"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a"> 1181</a></span><span class="comment"></span>  <span class="keyword">mutable</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1e1379f9a0269d6990f26bf1da045657">Options_mutex</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a">m_opts_mutex</a>;</div>
-<div class="line"><a id="l01182" name="l01182"></a><span class="lineno"> 1182</span><span class="comment"></span> </div>
-<div class="line"><a id="l01183" name="l01183"></a><span class="lineno"> 1183</span><span class="comment">  /// `true` if we connect() to server; `false` if we are to be/are `accept()`ed.  Should be set once and not modified.</span></div>
-<div class="line"><a id="l01184" name="l01184"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a288ccfc742d6982c4059d82500397874"> 1184</a></span><span class="comment"></span>  <span class="keywordtype">bool</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a288ccfc742d6982c4059d82500397874">m_active_connect</a>;</div>
-<div class="line"><a id="l01185" name="l01185"></a><span class="lineno"> 1185</span><span class="comment"></span> </div>
-<div class="line"><a id="l01186" name="l01186"></a><span class="lineno"> 1186</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01187" name="l01187"></a><span class="lineno"> 1187</span><span class="comment">   * See state().  Should be set before user gets access to `*this`.  Must not be modified by non-W threads after that.</span></div>
-<div class="line"><a id="l01188" name="l01188"></a><span class="lineno"> 1188</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01189" name="l01189"></a><span class="lineno"> 1189</span><span class="comment">   * Accessed from thread W and user threads U != W (in state() and others).  Must be protected</span></div>
-<div class="line"><a id="l01190" name="l01190"></a><span class="lineno"> 1190</span><span class="comment">   * by mutex.</span></div>
-<div class="line"><a id="l01191" name="l01191"></a><span class="lineno"> 1191</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01192" name="l01192"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a05a765055fd54412c63e57e43697f1bc"> 1192</a></span>  <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">State</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a05a765055fd54412c63e57e43697f1bc">m_state</a>;</div>
-<div class="line"><a id="l01193" name="l01193"></a><span class="lineno"> 1193</span><span class="comment"></span> </div>
-<div class="line"><a id="l01194" name="l01194"></a><span class="lineno"> 1194</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01195" name="l01195"></a><span class="lineno"> 1195</span><span class="comment">   * See state().  Should be set before user gets access to `*this`.  Must not be modified by non-W</span></div>
-<div class="line"><a id="l01196" name="l01196"></a><span class="lineno"> 1196</span><span class="comment">   * threads after that.</span></div>
-<div class="line"><a id="l01197" name="l01197"></a><span class="lineno"> 1197</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01198" name="l01198"></a><span class="lineno"> 1198</span><span class="comment">   * Accessed from thread W and user threads U != W (in state() and others).  Must be protected by</span></div>
-<div class="line"><a id="l01199" name="l01199"></a><span class="lineno"> 1199</span><span class="comment">   * mutex.</span></div>
-<div class="line"><a id="l01200" name="l01200"></a><span class="lineno"> 1200</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01201" name="l01201"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ae5d47460784cc20c9e44237edffaac95"> 1201</a></span>  <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">Open_sub_state</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ae5d47460784cc20c9e44237edffaac95">m_open_sub_state</a>;</div>
-<div class="line"><a id="l01202" name="l01202"></a><span class="lineno"> 1202</span><span class="comment"></span> </div>
-<div class="line"><a id="l01203" name="l01203"></a><span class="lineno"> 1203</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01204" name="l01204"></a><span class="lineno"> 1204</span><span class="comment">   * See node().  Should be set before user gets access to `*this` and not changed, except to null when</span></div>
-<div class="line"><a id="l01205" name="l01205"></a><span class="lineno"> 1205</span><span class="comment">   * state is State::S_CLOSED.  Must not be modified by non-W threads.</span></div>
-<div class="line"><a id="l01206" name="l01206"></a><span class="lineno"> 1206</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01207" name="l01207"></a><span class="lineno"> 1207</span><span class="comment">   * Invariant: `x-&gt;node() == y` if and only if `y-&gt;m_socks` contains `x`; otherwise `!x-&gt;node()`.</span></div>
-<div class="line"><a id="l01208" name="l01208"></a><span class="lineno"> 1208</span><span class="comment">   * The invariant must hold by the end of the execution of any thread W boost.asio handler (but</span></div>
-<div class="line"><a id="l01209" name="l01209"></a><span class="lineno"> 1209</span><span class="comment">   * not necessarily at all points within that handler, or generally).</span></div>
-<div class="line"><a id="l01210" name="l01210"></a><span class="lineno"> 1210</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01211" name="l01211"></a><span class="lineno"> 1211</span><span class="comment">   * Accessed from thread W and user threads U != W (in node() and others).  Must be protected by</span></div>
-<div class="line"><a id="l01212" name="l01212"></a><span class="lineno"> 1212</span><span class="comment">   * mutex.</span></div>
-<div class="line"><a id="l01213" name="l01213"></a><span class="lineno"> 1213</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01214" name="l01214"></a><span class="lineno"> 1214</span><span class="comment">   * @todo `boost::weak_ptr&lt;Node&gt;` would be ideal for this, but of course then Node would have to</span></div>
-<div class="line"><a id="l01215" name="l01215"></a><span class="lineno"> 1215</span><span class="comment">   * (only?) be available via shared_ptr&lt;&gt;.</span></div>
-<div class="line"><a id="l01216" name="l01216"></a><span class="lineno"> 1216</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01217" name="l01217"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a36ab27af6886c7699f9965a5eb296cd6"> 1217</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Node.html">Node</a>* <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a36ab27af6886c7699f9965a5eb296cd6">m_node</a>;</div>
-<div class="line"><a id="l01218" name="l01218"></a><span class="lineno"> 1218</span><span class="comment"></span> </div>
-<div class="line"><a id="l01219" name="l01219"></a><span class="lineno"> 1219</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01220" name="l01220"></a><span class="lineno"> 1220</span><span class="comment">   * For sockets that come a Server_socket, this is the inverse of Server_socket::m_connecting_socks: it is</span></div>
-<div class="line"><a id="l01221" name="l01221"></a><span class="lineno"> 1221</span><span class="comment">   * the Server_socket from which this Peer_socket will be Server_socket::accept()ed (if that succeeds); or null if</span></div>
-<div class="line"><a id="l01222" name="l01222"></a><span class="lineno"> 1222</span><span class="comment">   * this is an actively-connecting Peer_socket or has already been `accept()`ed.</span></div>
-<div class="line"><a id="l01223" name="l01223"></a><span class="lineno"> 1223</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01224" name="l01224"></a><span class="lineno"> 1224</span><span class="comment">   * More formally, this is null if #m_active_connect; null if not the case but already accept()ed; and otherwise:</span></div>
-<div class="line"><a id="l01225" name="l01225"></a><span class="lineno"> 1225</span><span class="comment">   * `((y-&gt;m_connecting_socks contains x) || (y-&gt;m_unaccepted_socks contains x))` if and only if</span></div>
-<div class="line"><a id="l01226" name="l01226"></a><span class="lineno"> 1226</span><span class="comment">   * `x-&gt;m_originating_serv == y`.  That is, for a socket in state Int_state::S_SYN_RCVD, or in state</span></div>
-<div class="line"><a id="l01227" name="l01227"></a><span class="lineno"> 1227</span><span class="comment">   * Int_state::S_ESTABLISHED, but before being accept()ed by the user, this is the server socket that spawned this</span></div>
-<div class="line"><a id="l01228" name="l01228"></a><span class="lineno"> 1228</span><span class="comment">   * peer socket.</span></div>
-<div class="line"><a id="l01229" name="l01229"></a><span class="lineno"> 1229</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01230" name="l01230"></a><span class="lineno"> 1230</span><span class="comment">   * ### Thread safety ###</span></div>
-<div class="line"><a id="l01231" name="l01231"></a><span class="lineno"> 1231</span><span class="comment">   * This can be write-accessed simultaneously by thread W (e.g., when closing a</span></div>
-<div class="line"><a id="l01232" name="l01232"></a><span class="lineno"> 1232</span><span class="comment">   * socket before it is accepted) and a user thread U != W (in Server_socket::accept()).  It is</span></div>
-<div class="line"><a id="l01233" name="l01233"></a><span class="lineno"> 1233</span><span class="comment">   * thus protected by a mutex -- but it&#39;s Server_socket::m_mutex, not Peer_socket::m_mutex.  I</span></div>
-<div class="line"><a id="l01234" name="l01234"></a><span class="lineno"> 1234</span><span class="comment">   * know it&#39;s weird, but it makes sense.  Basically Server_socket::m_unaccepted_socks and</span></div>
-<div class="line"><a id="l01235" name="l01235"></a><span class="lineno"> 1235</span><span class="comment">   * Server_socket::m_originating_serv -- for each element of `m_unaccepted_socks` -- are modified together</span></div>
-<div class="line"><a id="l01236" name="l01236"></a><span class="lineno"> 1236</span><span class="comment">   * in a synchronized way.</span></div>
-<div class="line"><a id="l01237" name="l01237"></a><span class="lineno"> 1237</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01238" name="l01238"></a><span class="lineno"> 1238</span><span class="comment">   * @see Server_socket::m_connecting_socks and Server_socket::m_unaccepted_socks for the closely</span></div>
-<div class="line"><a id="l01239" name="l01239"></a><span class="lineno"> 1239</span><span class="comment">   *      related inverse.</span></div>
-<div class="line"><a id="l01240" name="l01240"></a><span class="lineno"> 1240</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01241" name="l01241"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a5629d810d2c7252eaa2243e076dde83f"> 1241</a></span>  <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Server_socket::Ptr</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a5629d810d2c7252eaa2243e076dde83f">m_originating_serv</a>;</div>
-<div class="line"><a id="l01242" name="l01242"></a><span class="lineno"> 1242</span><span class="comment"></span> </div>
-<div class="line"><a id="l01243" name="l01243"></a><span class="lineno"> 1243</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01244" name="l01244"></a><span class="lineno"> 1244</span><span class="comment">   * The Receive buffer; Node feeds data at the back; user consumes data at the front.  Contains</span></div>
-<div class="line"><a id="l01245" name="l01245"></a><span class="lineno"> 1245</span><span class="comment">   * application-layer data received from the other side, to be read by user via receive() and</span></div>
-<div class="line"><a id="l01246" name="l01246"></a><span class="lineno"> 1246</span><span class="comment">   * similar.</span></div>
-<div class="line"><a id="l01247" name="l01247"></a><span class="lineno"> 1247</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01248" name="l01248"></a><span class="lineno"> 1248</span><span class="comment">   * A maximum cumulative byte count is maintained.  If data are received that would exceed this max</span></div>
-<div class="line"><a id="l01249" name="l01249"></a><span class="lineno"> 1249</span><span class="comment">   * (i.e., the user is not retrieving the data fast enough to keep up), these data are dropped (and</span></div>
-<div class="line"><a id="l01250" name="l01250"></a><span class="lineno"> 1250</span><span class="comment">   * if we use ACKs would be eventually treated as dropped by the other side).</span></div>
-<div class="line"><a id="l01251" name="l01251"></a><span class="lineno"> 1251</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01252" name="l01252"></a><span class="lineno"> 1252</span><span class="comment">   * Note that this is a high-level structure, near the application layer.  This does not store any</span></div>
-<div class="line"><a id="l01253" name="l01253"></a><span class="lineno"> 1253</span><span class="comment">   * metadata, like sequence numbers, or data not ready to be consumed by the user (such as</span></div>
-<div class="line"><a id="l01254" name="l01254"></a><span class="lineno"> 1254</span><span class="comment">   * out-of-order packets, if we implement that).  Such packets and data should be stored elsewhere.</span></div>
-<div class="line"><a id="l01255" name="l01255"></a><span class="lineno"> 1255</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01256" name="l01256"></a><span class="lineno"> 1256</span><span class="comment">   * ### Thread safety ###</span></div>
-<div class="line"><a id="l01257" name="l01257"></a><span class="lineno"> 1257</span><span class="comment">   * This can be write-accessed simultaneously by thread W (when receiving by Node)</span></div>
-<div class="line"><a id="l01258" name="l01258"></a><span class="lineno"> 1258</span><span class="comment">   * and a user thread U != W (in receive(), etc.).  It is thus protected by a mutex.</span></div>
-<div class="line"><a id="l01259" name="l01259"></a><span class="lineno"> 1259</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01260" name="l01260"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3"> 1260</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Socket__buffer.html">Socket_buffer</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3">m_rcv_buf</a>;</div>
-<div class="line"><a id="l01261" name="l01261"></a><span class="lineno"> 1261</span><span class="comment"></span> </div>
-<div class="line"><a id="l01262" name="l01262"></a><span class="lineno"> 1262</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01263" name="l01263"></a><span class="lineno"> 1263</span><span class="comment">   * The Send buffer; user feeds data at the back; Node consumes data at the front.  Contains</span></div>
-<div class="line"><a id="l01264" name="l01264"></a><span class="lineno"> 1264</span><span class="comment">   * application-layer data to be sent to the other side as supplied by user via send() and friends.</span></div>
-<div class="line"><a id="l01265" name="l01265"></a><span class="lineno"> 1265</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01266" name="l01266"></a><span class="lineno"> 1266</span><span class="comment">   * A maximum cumulative byte count is maintained.  If data are supplied that would exceed</span></div>
-<div class="line"><a id="l01267" name="l01267"></a><span class="lineno"> 1267</span><span class="comment">   * this max (i.e., the Node is not sending the data fast enough to keep up), send() will</span></div>
-<div class="line"><a id="l01268" name="l01268"></a><span class="lineno"> 1268</span><span class="comment">   * inform the caller that fewer bytes than intended have been buffered.  Typically this happens if</span></div>
-<div class="line"><a id="l01269" name="l01269"></a><span class="lineno"> 1269</span><span class="comment">   * the congestion control window is full, so data are getting buffered in #m_snd_buf instead of</span></div>
-<div class="line"><a id="l01270" name="l01270"></a><span class="lineno"> 1270</span><span class="comment">   * being immediately consumed and sent.</span></div>
-<div class="line"><a id="l01271" name="l01271"></a><span class="lineno"> 1271</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01272" name="l01272"></a><span class="lineno"> 1272</span><span class="comment">   * Note that this is a high-level structure, near the application layer.  This does not store any</span></div>
-<div class="line"><a id="l01273" name="l01273"></a><span class="lineno"> 1273</span><span class="comment">   * metadata, like sequence numbers, or data not ready to be consumed by the user (such as</span></div>
-<div class="line"><a id="l01274" name="l01274"></a><span class="lineno"> 1274</span><span class="comment">   * out-of-order packets, if we implement that).  Such packets and data should be stored elsewhere.</span></div>
-<div class="line"><a id="l01275" name="l01275"></a><span class="lineno"> 1275</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01276" name="l01276"></a><span class="lineno"> 1276</span><span class="comment">   * Thread safety: Analogous to #m_rcv_buf.</span></div>
-<div class="line"><a id="l01277" name="l01277"></a><span class="lineno"> 1277</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01278" name="l01278"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a993edf95f6bce2e57e7111e42533dc74"> 1278</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Socket__buffer.html">Socket_buffer</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a993edf95f6bce2e57e7111e42533dc74">m_snd_buf</a>;</div>
-<div class="line"><a id="l01279" name="l01279"></a><span class="lineno"> 1279</span><span class="comment"></span> </div>
-<div class="line"><a id="l01280" name="l01280"></a><span class="lineno"> 1280</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01281" name="l01281"></a><span class="lineno"> 1281</span><span class="comment">   * The #Error_code causing disconnection (if one has occurred or is occurring)</span></div>
-<div class="line"><a id="l01282" name="l01282"></a><span class="lineno"> 1282</span><span class="comment">   * on this socket; otherwise a clear (success) #Error_code.  This starts as success</span></div>
-<div class="line"><a id="l01283" name="l01283"></a><span class="lineno"> 1283</span><span class="comment">   * and may move to one non-success value and then never change after that.  Graceful connection</span></div>
-<div class="line"><a id="l01284" name="l01284"></a><span class="lineno"> 1284</span><span class="comment">   * termination is (unlike in BSD sockets, where this is indicated with receive() returning 0, not an</span></div>
-<div class="line"><a id="l01285" name="l01285"></a><span class="lineno"> 1285</span><span class="comment">   * error) indeed counted as a non-success value for #m_disconnect_cause.</span></div>
-<div class="line"><a id="l01286" name="l01286"></a><span class="lineno"> 1286</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01287" name="l01287"></a><span class="lineno"> 1287</span><span class="comment">   * Exception: if, during graceful close, the connection must be closed abruptly (due to error,</span></div>
-<div class="line"><a id="l01288" name="l01288"></a><span class="lineno"> 1288</span><span class="comment">   * including error::Code::S_USER_CLOSED_ABRUPTLY), #m_disconnect_cause may change a second time (from &quot;graceful close&quot;</span></div>
-<div class="line"><a id="l01289" name="l01289"></a><span class="lineno"> 1289</span><span class="comment">   * to &quot;abrupt closure&quot;).</span></div>
-<div class="line"><a id="l01290" name="l01290"></a><span class="lineno"> 1290</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01291" name="l01291"></a><span class="lineno"> 1291</span><span class="comment">   * As in TCP net-stacks, one cannot recover from a transmission error or termination on the socket</span></div>
-<div class="line"><a id="l01292" name="l01292"></a><span class="lineno"> 1292</span><span class="comment">   * (fake &quot;error&quot; `EWOULDBLOCK`/`EAGAIN` excepted), which is why this can only go success -&gt;</span></div>
-<div class="line"><a id="l01293" name="l01293"></a><span class="lineno"> 1293</span><span class="comment">   * non-success and never change after that.</span></div>
-<div class="line"><a id="l01294" name="l01294"></a><span class="lineno"> 1294</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01295" name="l01295"></a><span class="lineno"> 1295</span><span class="comment">   * How to report this to the user: attempting to `*receive()` when not Readable while</span></div>
-<div class="line"><a id="l01296" name="l01296"></a><span class="lineno"> 1296</span><span class="comment">   * #m_disconnect_cause is not success =&gt; `*receive()` returns this #Error_code to the user; and</span></div>
-<div class="line"><a id="l01297" name="l01297"></a><span class="lineno"> 1297</span><span class="comment">   * similarly for `*send()` and Writable.</span></div>
-<div class="line"><a id="l01298" name="l01298"></a><span class="lineno"> 1298</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01299" name="l01299"></a><span class="lineno"> 1299</span><span class="comment">   * I emphasize that this should happen only after Receive buffer has been emptied; otherwise user</span></div>
-<div class="line"><a id="l01300" name="l01300"></a><span class="lineno"> 1300</span><span class="comment">   * will not be able to read queued up received data after the Node internally detects connection</span></div>
-<div class="line"><a id="l01301" name="l01301"></a><span class="lineno"> 1301</span><span class="comment">   * termination.  By the same token, if the Node can still reasonably send data to the other side,</span></div>
-<div class="line"><a id="l01302" name="l01302"></a><span class="lineno"> 1302</span><span class="comment">   * and Send buffer is not empty, and #m_disconnect_cause is not success, the Node should only halt</span></div>
-<div class="line"><a id="l01303" name="l01303"></a><span class="lineno"> 1303</span><span class="comment">   * the packet sending once Send buffer has been emptied.</span></div>
-<div class="line"><a id="l01304" name="l01304"></a><span class="lineno"> 1304</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01305" name="l01305"></a><span class="lineno"> 1305</span><span class="comment">   * This should be success in all states except State::S_CLOSED and</span></div>
-<div class="line"><a id="l01306" name="l01306"></a><span class="lineno"> 1306</span><span class="comment">   * State::S_OPEN + Open_sub_state::S_DISCONNECTING.</span></div>
-<div class="line"><a id="l01307" name="l01307"></a><span class="lineno"> 1307</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01308" name="l01308"></a><span class="lineno"> 1308</span><span class="comment">   * ### Thread safety ###</span></div>
-<div class="line"><a id="l01309" name="l01309"></a><span class="lineno"> 1309</span><span class="comment">   * Since user threads will access this at least via receive() and send(), while</span></div>
-<div class="line"><a id="l01310" name="l01310"></a><span class="lineno"> 1310</span><span class="comment">   * thread W may set it having detected disconnection, this must be protected by a mutex.</span></div>
-<div class="line"><a id="l01311" name="l01311"></a><span class="lineno"> 1311</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01312" name="l01312"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a4fb8e8df98efa023e8bd4bd825475a18"> 1312</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a4fb8e8df98efa023e8bd4bd825475a18">m_disconnect_cause</a>;</div>
-<div class="line"><a id="l01313" name="l01313"></a><span class="lineno"> 1313</span><span class="comment"></span> </div>
-<div class="line"><a id="l01314" name="l01314"></a><span class="lineno"> 1314</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01315" name="l01315"></a><span class="lineno"> 1315</span><span class="comment">   * If `!m_active_connect`, this contains the serialized metadata that the user supplied on</span></div>
-<div class="line"><a id="l01316" name="l01316"></a><span class="lineno"> 1316</span><span class="comment">   * the other side when initiating the connect; otherwise this is the serialized metadata that the user</span></div>
-<div class="line"><a id="l01317" name="l01317"></a><span class="lineno"> 1317</span><span class="comment">   * supplied on this side when initiating the connect.  In either case (though obviously more</span></div>
-<div class="line"><a id="l01318" name="l01318"></a><span class="lineno"> 1318</span><span class="comment">   * useful in the `!m_active_connect` case) it can be obtained via get_connect_metadata().</span></div>
-<div class="line"><a id="l01319" name="l01319"></a><span class="lineno"> 1319</span><span class="comment">   * In the `m_active_connect` case, this is also needed if we must re-send the original SYN</span></div>
-<div class="line"><a id="l01320" name="l01320"></a><span class="lineno"> 1320</span><span class="comment">   * (retransmission).</span></div>
-<div class="line"><a id="l01321" name="l01321"></a><span class="lineno"> 1321</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01322" name="l01322"></a><span class="lineno"> 1322</span><span class="comment">   * ### Thread safety ###</span></div>
-<div class="line"><a id="l01323" name="l01323"></a><span class="lineno"> 1323</span><span class="comment">   * Same as #m_snd_buf and #m_rcv_buf (protected by #m_mutex).  This would not be</span></div>
-<div class="line"><a id="l01324" name="l01324"></a><span class="lineno"> 1324</span><span class="comment">   * necessary, since this value is immutable once user gets access to `*this`, and threads other than</span></div>
-<div class="line"><a id="l01325" name="l01325"></a><span class="lineno"> 1325</span><span class="comment">   * W can access it, but sock_free_memory() does clear it while the user may be accessing it.  Due</span></div>
-<div class="line"><a id="l01326" name="l01326"></a><span class="lineno"> 1326</span><span class="comment">   * to that caveat, we have to lock it.</span></div>
-<div class="line"><a id="l01327" name="l01327"></a><span class="lineno"> 1327</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01328" name="l01328"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a322dddf34a06bb199dab02c993bad686"> 1328</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a322dddf34a06bb199dab02c993bad686">m_serialized_metadata</a>;</div>
-<div class="line"><a id="l01329" name="l01329"></a><span class="lineno"> 1329</span><span class="comment"></span> </div>
-<div class="line"><a id="l01330" name="l01330"></a><span class="lineno"> 1330</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01331" name="l01331"></a><span class="lineno"> 1331</span><span class="comment">   * This object&#39;s mutex.  The protected items are #m_state, #m_open_sub_state, #m_disconnect_cause,</span></div>
-<div class="line"><a id="l01332" name="l01332"></a><span class="lineno"> 1332</span><span class="comment">   * #m_node, #m_rcv_buf, #m_snd_buf, #m_serialized_metadata.</span></div>
-<div class="line"><a id="l01333" name="l01333"></a><span class="lineno"> 1333</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01334" name="l01334"></a><span class="lineno"> 1334</span><span class="comment">   * Generally speaking, if 2 or more of the protected variables must be changed in the same</span></div>
-<div class="line"><a id="l01335" name="l01335"></a><span class="lineno"> 1335</span><span class="comment">   * non-blocking &quot;operation&quot; (for some reasonable definition of &quot;operation&quot;), they should probably</span></div>
-<div class="line"><a id="l01336" name="l01336"></a><span class="lineno"> 1336</span><span class="comment">   * be changed within the same #m_mutex-locking critical section.  For example, if closing the</span></div>
-<div class="line"><a id="l01337" name="l01337"></a><span class="lineno"> 1337</span><span class="comment">   * socket in thread W due to an incoming RST, one should lock #m_mutex, clear both buffers, set</span></div>
-<div class="line"><a id="l01338" name="l01338"></a><span class="lineno"> 1338</span><span class="comment">   * #m_disconnect_cause, change `m_state = State::S_CLOSED`, and then unlock #m_mutex.  Then thread U != W</span></div>
-<div class="line"><a id="l01339" name="l01339"></a><span class="lineno"> 1339</span><span class="comment">   * will observe all this state changed at the &quot;same time,&quot; which is desirable.</span></div>
-<div class="line"><a id="l01340" name="l01340"></a><span class="lineno"> 1340</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01341" name="l01341"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41"> 1341</a></span>  <span class="keyword">mutable</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ad1e36619c78b15f46576a18678a4ee67">Mutex</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">m_mutex</a>;</div>
-<div class="line"><a id="l01342" name="l01342"></a><span class="lineno"> 1342</span><span class="comment"></span> </div>
-<div class="line"><a id="l01343" name="l01343"></a><span class="lineno"> 1343</span><span class="comment">  /// See remote_endpoint().  Should be set before user gets access to `*this` and not changed afterwards.</span></div>
-<div class="line"><a id="l01344" name="l01344"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a218ec098984b754b43940001f59ab787"> 1344</a></span><span class="comment"></span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a218ec098984b754b43940001f59ab787">m_remote_endpoint</a>;</div>
-<div class="line"><a id="l01345" name="l01345"></a><span class="lineno"> 1345</span><span class="comment"></span> </div>
-<div class="line"><a id="l01346" name="l01346"></a><span class="lineno"> 1346</span><span class="comment">  /// See local_port().  Should be set before user gets access to `*this` and not changed afterwards.</span></div>
-<div class="line"><a id="l01347" name="l01347"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a7b65c1b26e38a2ae614d9a12edfa57dd"> 1347</a></span><span class="comment"></span>  <a class="code hl_typedef" href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow_port_t</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a7b65c1b26e38a2ae614d9a12edfa57dd">m_local_port</a>;</div>
-<div class="line"><a id="l01348" name="l01348"></a><span class="lineno"> 1348</span><span class="comment"></span> </div>
-<div class="line"><a id="l01349" name="l01349"></a><span class="lineno"> 1349</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01350" name="l01350"></a><span class="lineno"> 1350</span><span class="comment">   * Current internal state of the socket.  Note this is a very central piece of information and is analogous</span></div>
-<div class="line"><a id="l01351" name="l01351"></a><span class="lineno"> 1351</span><span class="comment">   * to TCP&#39;s &quot;state&quot; (ESTABLISHED, etc. etc.).</span></div>
-<div class="line"><a id="l01352" name="l01352"></a><span class="lineno"> 1352</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01353" name="l01353"></a><span class="lineno"> 1353</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be</span></div>
-<div class="line"><a id="l01354" name="l01354"></a><span class="lineno"> 1354</span><span class="comment">   * accessed outside of thread W and is not protected by a mutex.</span></div>
-<div class="line"><a id="l01355" name="l01355"></a><span class="lineno"> 1355</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01356" name="l01356"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a2c5de5df50268168cbbad82eaf90fa93"> 1356</a></span>  <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">Int_state</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a2c5de5df50268168cbbad82eaf90fa93">m_int_state</a>;</div>
-<div class="line"><a id="l01357" name="l01357"></a><span class="lineno"> 1357</span><span class="comment"></span> </div>
-<div class="line"><a id="l01358" name="l01358"></a><span class="lineno"> 1358</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01359" name="l01359"></a><span class="lineno"> 1359</span><span class="comment">   * The queue of DATA packets received while in Int_state::S_SYN_RCVD state before the</span></div>
-<div class="line"><a id="l01360" name="l01360"></a><span class="lineno"> 1360</span><span class="comment">   * Syn_ack_ack_packet arrives to move us to Int_state::S_ESTABLISHED</span></div>
-<div class="line"><a id="l01361" name="l01361"></a><span class="lineno"> 1361</span><span class="comment">   * state, at which point these packets can be processed normally.  Such</span></div>
-<div class="line"><a id="l01362" name="l01362"></a><span class="lineno"> 1362</span><span class="comment">   * DATA packets would not normally exist, but they can exist if the SYN_ACK_ACK is lost or DATA</span></div>
-<div class="line"><a id="l01363" name="l01363"></a><span class="lineno"> 1363</span><span class="comment">   * packets are re-ordered to go ahead of it.  See Node::handle_data_to_syn_rcvd() for more</span></div>
-<div class="line"><a id="l01364" name="l01364"></a><span class="lineno"> 1364</span><span class="comment">   * detail.</span></div>
-<div class="line"><a id="l01365" name="l01365"></a><span class="lineno"> 1365</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01366" name="l01366"></a><span class="lineno"> 1366</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W</span></div>
-<div class="line"><a id="l01367" name="l01367"></a><span class="lineno"> 1367</span><span class="comment">   * and is not protected by a mutex.</span></div>
-<div class="line"><a id="l01368" name="l01368"></a><span class="lineno"> 1368</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01369" name="l01369"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a48320d96118a37626f1852626965e6ed"> 1369</a></span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1869760d5cfc5c0d22665e5db88710e4">Rcv_syn_rcvd_data_q</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a48320d96118a37626f1852626965e6ed">m_rcv_syn_rcvd_data_q</a>;</div>
-<div class="line"><a id="l01370" name="l01370"></a><span class="lineno"> 1370</span><span class="comment"></span> </div>
-<div class="line"><a id="l01371" name="l01371"></a><span class="lineno"> 1371</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01372" name="l01372"></a><span class="lineno"> 1372</span><span class="comment">   * The running total count of bytes in the `m_data` fields of #m_rcv_syn_rcvd_data_q.  Undefined</span></div>
-<div class="line"><a id="l01373" name="l01373"></a><span class="lineno"> 1373</span><span class="comment">   * when the latter is empty.  Used to limit its size.  This gains meaning only in thread W.  This</span></div>
-<div class="line"><a id="l01374" name="l01374"></a><span class="lineno"> 1374</span><span class="comment">   * should NOT be accessed outside of thread W and is not protected by a mutex.</span></div>
-<div class="line"><a id="l01375" name="l01375"></a><span class="lineno"> 1375</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01376" name="l01376"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a1553bbefc3407cf84eaa8e256c6cffff"> 1376</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a1553bbefc3407cf84eaa8e256c6cffff">m_rcv_syn_rcvd_data_cumulative_size</a>;</div>
-<div class="line"><a id="l01377" name="l01377"></a><span class="lineno"> 1377</span><span class="comment"></span> </div>
-<div class="line"><a id="l01378" name="l01378"></a><span class="lineno"> 1378</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01379" name="l01379"></a><span class="lineno"> 1379</span><span class="comment">   * The Initial Sequence Number (ISN) contained in the original Syn_packet or</span></div>
-<div class="line"><a id="l01380" name="l01380"></a><span class="lineno"> 1380</span><span class="comment">   * Syn_ack_packet we received.</span></div>
-<div class="line"><a id="l01381" name="l01381"></a><span class="lineno"> 1381</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01382" name="l01382"></a><span class="lineno"> 1382</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01383" name="l01383"></a><span class="lineno"> 1383</span><span class="comment">   * not protected by a mutex.  Useful at least in verifying the validity of duplicate SYNs and</span></div>
-<div class="line"><a id="l01384" name="l01384"></a><span class="lineno"> 1384</span><span class="comment">   * SYN_ACKs.</span></div>
-<div class="line"><a id="l01385" name="l01385"></a><span class="lineno"> 1385</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01386" name="l01386"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a5dc05d1f5deb71e1259c5d5aad1fcf84"> 1386</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a5dc05d1f5deb71e1259c5d5aad1fcf84">m_rcv_init_seq_num</a>;</div>
-<div class="line"><a id="l01387" name="l01387"></a><span class="lineno"> 1387</span><span class="comment"></span> </div>
-<div class="line"><a id="l01388" name="l01388"></a><span class="lineno"> 1388</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01389" name="l01389"></a><span class="lineno"> 1389</span><span class="comment">   * The maximal sequence number R from the remote side such that all data with sequence numbers</span></div>
-<div class="line"><a id="l01390" name="l01390"></a><span class="lineno"> 1390</span><span class="comment">   * strictly less than R in this connection have been received by us and placed into the Receive</span></div>
-<div class="line"><a id="l01391" name="l01391"></a><span class="lineno"> 1391</span><span class="comment">   * buffer.  This first gains meaning upon receiving SYN and is the sequence number of that SYN,</span></div>
-<div class="line"><a id="l01392" name="l01392"></a><span class="lineno"> 1392</span><span class="comment">   * plus one (as in TCP); or upon receiving SYN_ACK (similarly).  Note that received packets past</span></div>
-<div class="line"><a id="l01393" name="l01393"></a><span class="lineno"> 1393</span><span class="comment">   * this sequence number may exist, but if so there is at least one missing packet (the one at</span></div>
-<div class="line"><a id="l01394" name="l01394"></a><span class="lineno"> 1394</span><span class="comment">   * #m_rcv_next_seq_num) preceding all of them.</span></div>
-<div class="line"><a id="l01395" name="l01395"></a><span class="lineno"> 1395</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01396" name="l01396"></a><span class="lineno"> 1396</span><span class="comment">   * @see #m_rcv_packets_with_gaps.</span></div>
-<div class="line"><a id="l01397" name="l01397"></a><span class="lineno"> 1397</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01398" name="l01398"></a><span class="lineno"> 1398</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01399" name="l01399"></a><span class="lineno"> 1399</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01400" name="l01400"></a><span class="lineno"> 1400</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01401" name="l01401"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a13c640ebd14a75df3894e7d885d16f5f"> 1401</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a13c640ebd14a75df3894e7d885d16f5f">m_rcv_next_seq_num</a>;</div>
-<div class="line"><a id="l01402" name="l01402"></a><span class="lineno"> 1402</span><span class="comment"></span> </div>
-<div class="line"><a id="l01403" name="l01403"></a><span class="lineno"> 1403</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01404" name="l01404"></a><span class="lineno"> 1404</span><span class="comment">   * The sequence-number-ordered collection of all</span></div>
-<div class="line"><a id="l01405" name="l01405"></a><span class="lineno"> 1405</span><span class="comment">   * received-and-not-dropped-due-to-buffer-overflow packets such that at least</span></div>
-<div class="line"><a id="l01406" name="l01406"></a><span class="lineno"> 1406</span><span class="comment">   * one unreceived-or-otherwise-unknown datum precedes all sequence numbers in this collection;</span></div>
-<div class="line"><a id="l01407" name="l01407"></a><span class="lineno"> 1407</span><span class="comment">   * a/k/a the reassembly queue if retransmission is enabled.</span></div>
-<div class="line"><a id="l01408" name="l01408"></a><span class="lineno"> 1408</span><span class="comment">   * With retransmission off, the only purpose of keeping this structure at all is to detect any</span></div>
-<div class="line"><a id="l01409" name="l01409"></a><span class="lineno"> 1409</span><span class="comment">   * already-received-and-given-to-Receive-buffer packet coming in again; such a packet should be</span></div>
-<div class="line"><a id="l01410" name="l01410"></a><span class="lineno"> 1410</span><span class="comment">   * ACKed but NOT given to the Receive buffer again (avoid data duplication).  With retransmission</span></div>
-<div class="line"><a id="l01411" name="l01411"></a><span class="lineno"> 1411</span><span class="comment">   * on, this is additionally used as the reassembly queue (storing the non-contiguous data until</span></div>
-<div class="line"><a id="l01412" name="l01412"></a><span class="lineno"> 1412</span><span class="comment">   * the gaps are filled in).</span></div>
-<div class="line"><a id="l01413" name="l01413"></a><span class="lineno"> 1413</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01414" name="l01414"></a><span class="lineno"> 1414</span><span class="comment">   * The structure is best explained by breaking down the sequence number space.  I list the</span></div>
-<div class="line"><a id="l01415" name="l01415"></a><span class="lineno"> 1415</span><span class="comment">   * sequence number ranges in increasing order starting with the ISN.  Let `last_rcv_seq_num` be the</span></div>
-<div class="line"><a id="l01416" name="l01416"></a><span class="lineno"> 1416</span><span class="comment">   * sequence number of the last datum to have been received (and not dropped due to insufficient</span></div>
-<div class="line"><a id="l01417" name="l01417"></a><span class="lineno"> 1417</span><span class="comment">   * Receive buffer space), for exposition purposes.</span></div>
-<div class="line"><a id="l01418" name="l01418"></a><span class="lineno"> 1418</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01419" name="l01419"></a><span class="lineno"> 1419</span><span class="comment">   *   - #m_rcv_init_seq_num =</span></div>
-<div class="line"><a id="l01420" name="l01420"></a><span class="lineno"> 1420</span><span class="comment">   *     - SYN or SYN_ACK</span></div>
-<div class="line"><a id="l01421" name="l01421"></a><span class="lineno"> 1421</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01422" name="l01422"></a><span class="lineno"> 1422</span><span class="comment">   *   - [`m_rcv_init_seq_num + 1`, `m_rcv_next_seq_num - 1`] =</span></div>
-<div class="line"><a id="l01423" name="l01423"></a><span class="lineno"> 1423</span><span class="comment">   *     - Largest possible range of sequence numbers such that each datum represented by this range</span></div>
-<div class="line"><a id="l01424" name="l01424"></a><span class="lineno"> 1424</span><span class="comment">   *       has been received (and not dropped due to insufficient Receive buffer space) and copied to</span></div>
-<div class="line"><a id="l01425" name="l01425"></a><span class="lineno"> 1425</span><span class="comment">   *       the Receive buffer for user retrieval.</span></div>
-<div class="line"><a id="l01426" name="l01426"></a><span class="lineno"> 1426</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01427" name="l01427"></a><span class="lineno"> 1427</span><span class="comment">   *   - [#m_rcv_next_seq_num, `m_rcv_next_seq_num + N - 1`] =</span></div>
-<div class="line"><a id="l01428" name="l01428"></a><span class="lineno"> 1428</span><span class="comment">   *     - The first packet after the ISN that has not yet been received (or has been received but has</span></div>
-<div class="line"><a id="l01429" name="l01429"></a><span class="lineno"> 1429</span><span class="comment">   *       been dropped due to insufficient Receive buffer space).  `N` is the (unknown to us) length of</span></div>
-<div class="line"><a id="l01430" name="l01430"></a><span class="lineno"> 1430</span><span class="comment">   *       that packet.  `N` &gt; 0.  This can be seen as the first &quot;gap&quot; in the received sequence number</span></div>
-<div class="line"><a id="l01431" name="l01431"></a><span class="lineno"> 1431</span><span class="comment">   *       space.</span></div>
-<div class="line"><a id="l01432" name="l01432"></a><span class="lineno"> 1432</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01433" name="l01433"></a><span class="lineno"> 1433</span><span class="comment">   *   - [`m_rcv_next_seq_num + N`, `last_rcv_seq_num`] =</span></div>
-<div class="line"><a id="l01434" name="l01434"></a><span class="lineno"> 1434</span><span class="comment">   *     - The remaining packets up to and including the last byte that has been received (and not</span></div>
-<div class="line"><a id="l01435" name="l01435"></a><span class="lineno"> 1435</span><span class="comment">   *       dropped due to insufficient Receive buffer space).  Each packet in this range is one of the</span></div>
-<div class="line"><a id="l01436" name="l01436"></a><span class="lineno"> 1436</span><span class="comment">   *       following:</span></div>
-<div class="line"><a id="l01437" name="l01437"></a><span class="lineno"> 1437</span><span class="comment">   *       - received (and not dropped due to insufficient Receive buffer space);</span></div>
-<div class="line"><a id="l01438" name="l01438"></a><span class="lineno"> 1438</span><span class="comment">   *       - not received (or received and dropped due to insufficient Receive buffer space).</span></div>
-<div class="line"><a id="l01439" name="l01439"></a><span class="lineno"> 1439</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01440" name="l01440"></a><span class="lineno"> 1440</span><span class="comment">   *   - [`last_rcv_seq_num + 1`, ...] =</span></div>
-<div class="line"><a id="l01441" name="l01441"></a><span class="lineno"> 1441</span><span class="comment">   *     - All remaining not-yet-received (or received but dropped due to insufficient Receive buffer</span></div>
-<div class="line"><a id="l01442" name="l01442"></a><span class="lineno"> 1442</span><span class="comment">   *       space) packets.</span></div>
-<div class="line"><a id="l01443" name="l01443"></a><span class="lineno"> 1443</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01444" name="l01444"></a><span class="lineno"> 1444</span><span class="comment">   * #m_rcv_packets_with_gaps contains all Received_packets in the range [`m_rcv_next_seq_num + N`,</span></div>
-<div class="line"><a id="l01445" name="l01445"></a><span class="lineno"> 1445</span><span class="comment">   * `last_rcv_seq_num`], with each particular Received_packet&#39;s first sequence number as its key.  If</span></div>
-<div class="line"><a id="l01446" name="l01446"></a><span class="lineno"> 1446</span><span class="comment">   * there are no gaps -- all received sequence numbers are followed by unreceived sequence numbers</span></div>
-<div class="line"><a id="l01447" name="l01447"></a><span class="lineno"> 1447</span><span class="comment">   * -- then that range is empty and so is #m_rcv_packets_with_gaps.  All the other ranges can be</span></div>
-<div class="line"><a id="l01448" name="l01448"></a><span class="lineno"> 1448</span><span class="comment">   * null (empty) as well.  If there are no received-and-undropped packets, then `m_rcv_init_seq_num</span></div>
-<div class="line"><a id="l01449" name="l01449"></a><span class="lineno"> 1449</span><span class="comment">   * == m_rcv_next_seq_num`, which is the initial situation.</span></div>
-<div class="line"><a id="l01450" name="l01450"></a><span class="lineno"> 1450</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01451" name="l01451"></a><span class="lineno"> 1451</span><span class="comment">   * The above is an invariant, to be true at the end of each boost.asio handler in thread W, at</span></div>
-<div class="line"><a id="l01452" name="l01452"></a><span class="lineno"> 1452</span><span class="comment">   * least.</span></div>
-<div class="line"><a id="l01453" name="l01453"></a><span class="lineno"> 1453</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01454" name="l01454"></a><span class="lineno"> 1454</span><span class="comment">   * Each received-and-undropped packet therefore is placed into #m_rcv_packets_with_gaps, anywhere</span></div>
-<div class="line"><a id="l01455" name="l01455"></a><span class="lineno"> 1455</span><span class="comment">   * in the middle.  If retransmission is off, the data in the packet is added to Receive buffer.</span></div>
-<div class="line"><a id="l01456" name="l01456"></a><span class="lineno"> 1456</span><span class="comment">   * If retransmission is on, the data in the packet is NOT added to Receive buffer but instead</span></div>
-<div class="line"><a id="l01457" name="l01457"></a><span class="lineno"> 1457</span><span class="comment">   * saved within the structure for later reassembly (see next paragraph).</span></div>
-<div class="line"><a id="l01458" name="l01458"></a><span class="lineno"> 1458</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01459" name="l01459"></a><span class="lineno"> 1459</span><span class="comment">   * If the [#m_rcv_next_seq_num, ...] (first gap) packet is received-and-not-dropped, then</span></div>
-<div class="line"><a id="l01460" name="l01460"></a><span class="lineno"> 1460</span><span class="comment">   * #m_rcv_next_seq_num is incremented by N (the length of that packet), filling the gap.  Moreover,</span></div>
-<div class="line"><a id="l01461" name="l01461"></a><span class="lineno"> 1461</span><span class="comment">   * any contiguous packets at the front of #m_rcv_packets_with_gaps, assuming the first packet&#39;s</span></div>
-<div class="line"><a id="l01462" name="l01462"></a><span class="lineno"> 1462</span><span class="comment">   * sequence number equals #m_rcv_next_seq_num, must be removed from #m_rcv_packets_with_gaps, and</span></div>
-<div class="line"><a id="l01463" name="l01463"></a><span class="lineno"> 1463</span><span class="comment">   * #m_rcv_next_seq_num should be incremented accordingly.  All of this maintains the invariant.  If</span></div>
-<div class="line"><a id="l01464" name="l01464"></a><span class="lineno"> 1464</span><span class="comment">   * retransmission is on, the data in the byte sequence formed by this operation is to be placed</span></div>
-<div class="line"><a id="l01465" name="l01465"></a><span class="lineno"> 1465</span><span class="comment">   * (in sequence number order) into the Receive buffer (a/k/a reassembly).</span></div>
-<div class="line"><a id="l01466" name="l01466"></a><span class="lineno"> 1466</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01467" name="l01467"></a><span class="lineno"> 1467</span><span class="comment">   * Conceptually, this is the action of receiving a gap packet which links up following</span></div>
-<div class="line"><a id="l01468" name="l01468"></a><span class="lineno"> 1468</span><span class="comment">   * already-received packets to previous already-received packets, which means all of these can go</span></div>
-<div class="line"><a id="l01469" name="l01469"></a><span class="lineno"> 1469</span><span class="comment">   * away, as the window slides forward beyond them.</span></div>
-<div class="line"><a id="l01470" name="l01470"></a><span class="lineno"> 1470</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01471" name="l01471"></a><span class="lineno"> 1471</span><span class="comment">   * If a packet arrives and is already in #m_rcv_packets_with_gaps, then it is a duplicate and is</span></div>
-<div class="line"><a id="l01472" name="l01472"></a><span class="lineno"> 1472</span><span class="comment">   * NOT placed on the Receive buffer.  The same holds for any packet with sequence numbers</span></div>
-<div class="line"><a id="l01473" name="l01473"></a><span class="lineno"> 1473</span><span class="comment">   * preceding #m_rcv_next_seq_num.</span></div>
-<div class="line"><a id="l01474" name="l01474"></a><span class="lineno"> 1474</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01475" name="l01475"></a><span class="lineno"> 1475</span><span class="comment">   * The type used is a map sorted by starting sequence number of each packet.  Why?  We need pretty</span></div>
-<div class="line"><a id="l01476" name="l01476"></a><span class="lineno"> 1476</span><span class="comment">   * fast middle operations, inserting and checking for existence of arriving packet.  We need fast</span></div>
-<div class="line"><a id="l01477" name="l01477"></a><span class="lineno"> 1477</span><span class="comment">   * access to the earliest (smallest sequence number) packet, for when the first gap is filled.</span></div>
-<div class="line"><a id="l01478" name="l01478"></a><span class="lineno"> 1478</span><span class="comment">   * `std::map` satisfies these needs: `insert()` and `lower_bound()` are &lt;em&gt;O(log n)&lt;/em&gt;; `begin()` gives the</span></div>
-<div class="line"><a id="l01479" name="l01479"></a><span class="lineno"> 1479</span><span class="comment">   * smallest element and is @em O(1).  Iteration is @em O(1) as well.  (All amortized.)</span></div>
-<div class="line"><a id="l01480" name="l01480"></a><span class="lineno"> 1480</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01481" name="l01481"></a><span class="lineno"> 1481</span><span class="comment">   * ### Memory use ###</span></div>
-<div class="line"><a id="l01482" name="l01482"></a><span class="lineno"> 1482</span><span class="comment">   * The above scheme allows for unbounded memory use given certain behavior from the</span></div>
-<div class="line"><a id="l01483" name="l01483"></a><span class="lineno"> 1483</span><span class="comment">   * other side, when retransmission is off.  Suppose packets 1, 2, 3 are received; then packets 5,</span></div>
-<div class="line"><a id="l01484" name="l01484"></a><span class="lineno"> 1484</span><span class="comment">   * 6, ..., 1000 are received.  Retransmission is off, so eventually the sender</span></div>
-<div class="line"><a id="l01485" name="l01485"></a><span class="lineno"> 1485</span><span class="comment">   * may give up on packet 4 and consider it Dropped.  So the gap will forever exist; hence</span></div>
-<div class="line"><a id="l01486" name="l01486"></a><span class="lineno"> 1486</span><span class="comment">   * #m_rcv_packets_with_gaps will always hold per-packet data for 5, 6, ..., 1000 (and any</span></div>
-<div class="line"><a id="l01487" name="l01487"></a><span class="lineno"> 1487</span><span class="comment">   * subsequent packets).  With retransmission, packet 4 would eventually arrive, or the connection</span></div>
-<div class="line"><a id="l01488" name="l01488"></a><span class="lineno"> 1488</span><span class="comment">   * would get RSTed, but without retransmission that doesn&#39;t happen.  Thus memory use will just</span></div>
-<div class="line"><a id="l01489" name="l01489"></a><span class="lineno"> 1489</span><span class="comment">   * grow and grow.  Solution: come up with some heuristic that would quite conservatively declare</span></div>
-<div class="line"><a id="l01490" name="l01490"></a><span class="lineno"> 1490</span><span class="comment">   * that packet 4 has been &quot;received,&quot; even though it hasn&#39;t. This will plug the hole (packet 4)</span></div>
-<div class="line"><a id="l01491" name="l01491"></a><span class="lineno"> 1491</span><span class="comment">   * and clear #m_rcv_packets_with_gaps in this example.  Then if packet 4 does somehow come in, it</span></div>
-<div class="line"><a id="l01492" name="l01492"></a><span class="lineno"> 1492</span><span class="comment">   * will get ACKed (like any valid received packet) but will NOT be saved into the Receive buffer,</span></div>
-<div class="line"><a id="l01493" name="l01493"></a><span class="lineno"> 1493</span><span class="comment">   * since it will be considered &quot;duplicate&quot; due to already being &quot;received.&quot;  Of course, the</span></div>
-<div class="line"><a id="l01494" name="l01494"></a><span class="lineno"> 1494</span><span class="comment">   * heuristic must be such that few if any packets considered &quot;received&quot; this way will actually get</span></div>
-<div class="line"><a id="l01495" name="l01495"></a><span class="lineno"> 1495</span><span class="comment">   * delivered eventually, otherwise we may lose a lot of data.  Here is one such heuristic, that is</span></div>
-<div class="line"><a id="l01496" name="l01496"></a><span class="lineno"> 1496</span><span class="comment">   * both simple and conservative: let N be some constant (e.g., N = 100).  If</span></div>
-<div class="line"><a id="l01497" name="l01497"></a><span class="lineno"> 1497</span><span class="comment">   * `m_rcv_packets_with_gaps.size()` exceeds N (i.e., equals (N + 1)), consider all gap packets</span></div>
-<div class="line"><a id="l01498" name="l01498"></a><span class="lineno"> 1498</span><span class="comment">   * preceding #m_rcv_packets_with_gaps&#39;s first sequence number as &quot;received.&quot;  This will, through</span></div>
-<div class="line"><a id="l01499" name="l01499"></a><span class="lineno"> 1499</span><span class="comment">   * gap filling logic described above, reduce `m_rcv_packets_with_gaps.size()` to N or less.  Thus it</span></div>
-<div class="line"><a id="l01500" name="l01500"></a><span class="lineno"> 1500</span><span class="comment">   * puts a simple upper bound on #m_rcv_packets_with_gaps&#39;s memory; if N = 100 the memory used by</span></div>
-<div class="line"><a id="l01501" name="l01501"></a><span class="lineno"> 1501</span><span class="comment">   * the structure is not much (since we don&#39;t store the actual packet data there [but this can get</span></div>
-<div class="line"><a id="l01502" name="l01502"></a><span class="lineno"> 1502</span><span class="comment">   * non-trivial with 100,000 sockets all filled up]).  Is it conservative?  Yes.  100 packets</span></div>
-<div class="line"><a id="l01503" name="l01503"></a><span class="lineno"> 1503</span><span class="comment">   * arriving after a gap are a near-guarantee those gap packets will never arrive (especially</span></div>
-<div class="line"><a id="l01504" name="l01504"></a><span class="lineno"> 1504</span><span class="comment">   * without retransmission, which is the predicate for this entire problem).  Besides, the Drop</span></div>
-<div class="line"><a id="l01505" name="l01505"></a><span class="lineno"> 1505</span><span class="comment">   * heuristics on the Sender side almost certainly will consider gap packets with 100 or near 100</span></div>
-<div class="line"><a id="l01506" name="l01506"></a><span class="lineno"> 1506</span><span class="comment">   * Acknowledged packets after them as Dropped a long time ago; if the receiving side&#39;s heuristics</span></div>
-<div class="line"><a id="l01507" name="l01507"></a><span class="lineno"> 1507</span><span class="comment">   * are far more conservative, then that is good enough.</span></div>
-<div class="line"><a id="l01508" name="l01508"></a><span class="lineno"> 1508</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01509" name="l01509"></a><span class="lineno"> 1509</span><span class="comment">   * If retransmission is on, then (as noted) the sender&#39;s CWND and retransmission logic will ensure</span></div>
-<div class="line"><a id="l01510" name="l01510"></a><span class="lineno"> 1510</span><span class="comment">   * that gaps are filled before more future data are sent, so the above situation will not occur.</span></div>
-<div class="line"><a id="l01511" name="l01511"></a><span class="lineno"> 1511</span><span class="comment">   * However if the sender is a bad boy and for some reason sends new data and ignores gaps</span></div>
-<div class="line"><a id="l01512" name="l01512"></a><span class="lineno"> 1512</span><span class="comment">   * (possibly malicious behavior), then it would still be a problem.  Since in retransmission mode</span></div>
-<div class="line"><a id="l01513" name="l01513"></a><span class="lineno"> 1513</span><span class="comment">   * it&#39;s not OK to just ignore lost packets, we have no choice but to drop received packets when</span></div>
-<div class="line"><a id="l01514" name="l01514"></a><span class="lineno"> 1514</span><span class="comment">   * the above situation occurs (similarly to when Receive buffer is exceeded).  This is basically a</span></div>
-<div class="line"><a id="l01515" name="l01515"></a><span class="lineno"> 1515</span><span class="comment">   * security measure and should not matter assuming well-behaved operation from the other side.</span></div>
-<div class="line"><a id="l01516" name="l01516"></a><span class="lineno"> 1516</span><span class="comment">   * Update: With retransmission on, this structure is now subject to overflow protection with a tighter</span></div>
-<div class="line"><a id="l01517" name="l01517"></a><span class="lineno"> 1517</span><span class="comment">   * limit than with rexmit-off; namely, the limit controlling #m_rcv_buf overflow actually applies to</span></div>
-<div class="line"><a id="l01518" name="l01518"></a><span class="lineno"> 1518</span><span class="comment">   * the sum of data being stored in #m_rcv_buf and this structure, together.  I.e., a packet is dropped</span></div>
-<div class="line"><a id="l01519" name="l01519"></a><span class="lineno"> 1519</span><span class="comment">   * if the total data stored in #m_rcv_buf and #m_rcv_packets_with_gaps equal or exceed the configured</span></div>
-<div class="line"><a id="l01520" name="l01520"></a><span class="lineno"> 1520</span><span class="comment">   * limit.  Accordingly, rcv-wnd advertised to other side is based on this sum also.</span></div>
-<div class="line"><a id="l01521" name="l01521"></a><span class="lineno"> 1521</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01522" name="l01522"></a><span class="lineno"> 1522</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01523" name="l01523"></a><span class="lineno"> 1523</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01524" name="l01524"></a><span class="lineno"> 1524</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01525" name="l01525"></a><span class="lineno"> 1525</span><span class="comment">   * @see #m_rcv_reassembly_q_data_size.</span></div>
-<div class="line"><a id="l01526" name="l01526"></a><span class="lineno"> 1526</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01527" name="l01527"></a><span class="lineno"> 1527</span><span class="comment">   * @todo The memory use of this structure could be greatly optimized if, instead of storing each</span></div>
-<div class="line"><a id="l01528" name="l01528"></a><span class="lineno"> 1528</span><span class="comment">   * individual received packet&#39;s metadata separately, we always merged contiguous sequence number</span></div>
-<div class="line"><a id="l01529" name="l01529"></a><span class="lineno"> 1529</span><span class="comment">   * ranges.  So for example if packet P1, P2, P3 (contiguous) all arrived in sequence, after</span></div>
-<div class="line"><a id="l01530" name="l01530"></a><span class="lineno"> 1530</span><span class="comment">   * missing packet P0, then we&#39;d store P1&#39;s first sequence number and the total data size of</span></div>
-<div class="line"><a id="l01531" name="l01531"></a><span class="lineno"> 1531</span><span class="comment">   * P1+P2+P3, in a single `struct` instance.  Since a typical pattern might include 1 lost packet</span></div>
-<div class="line"><a id="l01532" name="l01532"></a><span class="lineno"> 1532</span><span class="comment">   * followed by 100 received packets, we&#39;d be able to cut down memory use by a factor of about 100</span></div>
-<div class="line"><a id="l01533" name="l01533"></a><span class="lineno"> 1533</span><span class="comment">   * in that case (and thus worry much less about the limit).  Of course the code would get more</span></div>
-<div class="line"><a id="l01534" name="l01534"></a><span class="lineno"> 1534</span><span class="comment">   * complex and potentially slower (but not necessarily significantly).</span></div>
-<div class="line"><a id="l01535" name="l01535"></a><span class="lineno"> 1535</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01536" name="l01536"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ae82958ed6d71be46b96eceaca6214143"> 1536</a></span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#addfc181f4d43ab816b2ede9216bf9331">Recvd_pkt_map</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ae82958ed6d71be46b96eceaca6214143">m_rcv_packets_with_gaps</a>;</div>
-<div class="line"><a id="l01537" name="l01537"></a><span class="lineno"> 1537</span><span class="comment"></span> </div>
-<div class="line"><a id="l01538" name="l01538"></a><span class="lineno"> 1538</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01539" name="l01539"></a><span class="lineno"> 1539</span><span class="comment">   * With retransmission enabled, the sum of Received_packet::m_size over all packets stored in the</span></div>
-<div class="line"><a id="l01540" name="l01540"></a><span class="lineno"> 1540</span><span class="comment">   * reassembly queue, #m_rcv_packets_with_gaps.  Stored for performance.</span></div>
-<div class="line"><a id="l01541" name="l01541"></a><span class="lineno"> 1541</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01542" name="l01542"></a><span class="lineno"> 1542</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01543" name="l01543"></a><span class="lineno"> 1543</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01544" name="l01544"></a><span class="lineno"> 1544</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01545" name="l01545"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aa7398394052c8e634365fb979c294644"> 1545</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aa7398394052c8e634365fb979c294644">m_rcv_reassembly_q_data_size</a>;</div>
-<div class="line"><a id="l01546" name="l01546"></a><span class="lineno"> 1546</span><span class="comment"></span> </div>
-<div class="line"><a id="l01547" name="l01547"></a><span class="lineno"> 1547</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01548" name="l01548"></a><span class="lineno"> 1548</span><span class="comment">   * The received packets to be acknowledged in the next low-level ACK packet to be sent to the</span></div>
-<div class="line"><a id="l01549" name="l01549"></a><span class="lineno"> 1549</span><span class="comment">   * other side, ordered in the chronological order they were received.  They are accumulated in a</span></div>
-<div class="line"><a id="l01550" name="l01550"></a><span class="lineno"> 1550</span><span class="comment">   * data structure because we may not send each desired acknowledgment right away, combining</span></div>
-<div class="line"><a id="l01551" name="l01551"></a><span class="lineno"> 1551</span><span class="comment">   * several together, thus reducing overhead at the cost of short delays (or even nearly</span></div>
-<div class="line"><a id="l01552" name="l01552"></a><span class="lineno"> 1552</span><span class="comment">   * non-existent delays, as in the case of several DATA packets handled in one</span></div>
-<div class="line"><a id="l01553" name="l01553"></a><span class="lineno"> 1553</span><span class="comment">   * NodeLLlow_lvl_recv_and_handle() invocation, i.e., having arrived at nearly at the same time).</span></div>
-<div class="line"><a id="l01554" name="l01554"></a><span class="lineno"> 1554</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01555" name="l01555"></a><span class="lineno"> 1555</span><span class="comment">   * Any two packets represented by these Individual_ack objects may be duplicates of each other (same</span></div>
-<div class="line"><a id="l01556" name="l01556"></a><span class="lineno"> 1556</span><span class="comment">   * Sequence_number, possibly different Individual_ack::m_received_when values).  It&#39;s up to the sender (receiver</span></div>
-<div class="line"><a id="l01557" name="l01557"></a><span class="lineno"> 1557</span><span class="comment">   * of ACK) to sort it out.  However, again, they MUST be ordered chronologicaly based on the time</span></div>
-<div class="line"><a id="l01558" name="l01558"></a><span class="lineno"> 1558</span><span class="comment">   * when they were received; from earliest to latest.</span></div>
-<div class="line"><a id="l01559" name="l01559"></a><span class="lineno"> 1559</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01560" name="l01560"></a><span class="lineno"> 1560</span><span class="comment">   * Storing shared pointers to avoid copying of structs (however small) during internal</span></div>
-<div class="line"><a id="l01561" name="l01561"></a><span class="lineno"> 1561</span><span class="comment">   * reshuffling; shared instead of raw pointers to not worry about delete.</span></div>
-<div class="line"><a id="l01562" name="l01562"></a><span class="lineno"> 1562</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01563" name="l01563"></a><span class="lineno"> 1563</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01564" name="l01564"></a><span class="lineno"> 1564</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01565" name="l01565"></a><span class="lineno"> 1565</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01566" name="l01566"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad46ed439a3d118eb2b540e9f99a7b0ca"> 1566</a></span>  std::vector&lt;boost::shared_ptr&lt;Individual_ack&gt;&gt; <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ad46ed439a3d118eb2b540e9f99a7b0ca">m_rcv_pending_acks</a>;</div>
-<div class="line"><a id="l01567" name="l01567"></a><span class="lineno"> 1567</span><span class="comment"></span> </div>
-<div class="line"><a id="l01568" name="l01568"></a><span class="lineno"> 1568</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01569" name="l01569"></a><span class="lineno"> 1569</span><span class="comment">   * Helper state, to be used while inside either Node::low_lvl_recv_and_handle() or</span></div>
-<div class="line"><a id="l01570" name="l01570"></a><span class="lineno"> 1570</span><span class="comment">   * async part of Node::async_wait_latency_then_handle_incoming(), set only at the beginning of either and equal to</span></div>
-<div class="line"><a id="l01571" name="l01571"></a><span class="lineno"> 1571</span><span class="comment">   * `m_rcv_pending_acks.size()` at that time.  Because, for efficiency, individual acknowledgements are</span></div>
-<div class="line"><a id="l01572" name="l01572"></a><span class="lineno"> 1572</span><span class="comment">   * accumulated over the course of those two methods, and an ACK with those acknowledgments is</span></div>
-<div class="line"><a id="l01573" name="l01573"></a><span class="lineno"> 1573</span><span class="comment">   * sent at the end of that method (in perform_accumulated_on_recv_tasks()) at the earliest, this</span></div>
-<div class="line"><a id="l01574" name="l01574"></a><span class="lineno"> 1574</span><span class="comment">   * member is used to determine whether we should start a delayed ACK timer at that point.</span></div>
-<div class="line"><a id="l01575" name="l01575"></a><span class="lineno"> 1575</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01576" name="l01576"></a><span class="lineno"> 1576</span><span class="comment">   * This gains meaning only in thread W and only within Node::low_lvl_recv_and_handle()/etc.</span></div>
-<div class="line"><a id="l01577" name="l01577"></a><span class="lineno"> 1577</span><span class="comment">   * and loses meaning after either method exits.  This should NOT</span></div>
-<div class="line"><a id="l01578" name="l01578"></a><span class="lineno"> 1578</span><span class="comment">   * be accessed outside of thread W and is not protected by a mutex.</span></div>
-<div class="line"><a id="l01579" name="l01579"></a><span class="lineno"> 1579</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01580" name="l01580"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a780f86759f861a3a84de8c5c768736b7"> 1580</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a780f86759f861a3a84de8c5c768736b7">m_rcv_pending_acks_size_at_recv_handler_start</a>;</div>
-<div class="line"><a id="l01581" name="l01581"></a><span class="lineno"> 1581</span><span class="comment"></span> </div>
-<div class="line"><a id="l01582" name="l01582"></a><span class="lineno"> 1582</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01583" name="l01583"></a><span class="lineno"> 1583</span><span class="comment">   * While Node::low_lvl_recv_and_handle() or async part of Node::async_wait_latency_then_handle_incoming() is running,</span></div>
-<div class="line"><a id="l01584" name="l01584"></a><span class="lineno"> 1584</span><span class="comment">   * accumulates the individual acknowledgments contained in all incoming ACK low-level packets</span></div>
-<div class="line"><a id="l01585" name="l01585"></a><span class="lineno"> 1585</span><span class="comment">   * received in those methods.  More precisely, this accumulates the elements of</span></div>
-<div class="line"><a id="l01586" name="l01586"></a><span class="lineno"> 1586</span><span class="comment">   * `packet.m_rcv_acked_packets` for all packets such that `packet` is an Ack_packet.  They are accumulated</span></div>
-<div class="line"><a id="l01587" name="l01587"></a><span class="lineno"> 1587</span><span class="comment">   * in this data structure for a similar reason that outgoing acknowledgments are accumulated in</span></div>
-<div class="line"><a id="l01588" name="l01588"></a><span class="lineno"> 1588</span><span class="comment">   * `Peer_socket::m_rcv_pending_acks`.  The situation here is simpler, however, since the present</span></div>
-<div class="line"><a id="l01589" name="l01589"></a><span class="lineno"> 1589</span><span class="comment">   * structure is always scanned and cleared at the end of the current handler and never carried</span></div>
-<div class="line"><a id="l01590" name="l01590"></a><span class="lineno"> 1590</span><span class="comment">   * over to the next, as we always want to scan all individual acks received within a non-blocking</span></div>
-<div class="line"><a id="l01591" name="l01591"></a><span class="lineno"> 1591</span><span class="comment">   * amount of time from receipt.  See Node::handle_ack_to_established() for details.</span></div>
-<div class="line"><a id="l01592" name="l01592"></a><span class="lineno"> 1592</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01593" name="l01593"></a><span class="lineno"> 1593</span><span class="comment">   * This structure is empty, accumulated over the course of those methods, is used to finally scan</span></div>
-<div class="line"><a id="l01594" name="l01594"></a><span class="lineno"> 1594</span><span class="comment">   * all individual acknowledgments (in the exact order received), and then cleared for the next</span></div>
-<div class="line"><a id="l01595" name="l01595"></a><span class="lineno"> 1595</span><span class="comment">   * run.</span></div>
-<div class="line"><a id="l01596" name="l01596"></a><span class="lineno"> 1596</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01597" name="l01597"></a><span class="lineno"> 1597</span><span class="comment">   * Storing shared pointers to avoid copying of structs (however small) during internal</span></div>
-<div class="line"><a id="l01598" name="l01598"></a><span class="lineno"> 1598</span><span class="comment">   * reshuffling; shared instead of raw pointers to not worry about delete.</span></div>
-<div class="line"><a id="l01599" name="l01599"></a><span class="lineno"> 1599</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01600" name="l01600"></a><span class="lineno"> 1600</span><span class="comment">   * This gains meaning only in thread W and only within Node::low_lvl_recv_and_handle()/etc.</span></div>
-<div class="line"><a id="l01601" name="l01601"></a><span class="lineno"> 1601</span><span class="comment">   * and loses meaning after either method exits.  This should NOT</span></div>
-<div class="line"><a id="l01602" name="l01602"></a><span class="lineno"> 1602</span><span class="comment">   * be accessed outside of thread W and is not protected by a mutex.</span></div>
-<div class="line"><a id="l01603" name="l01603"></a><span class="lineno"> 1603</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01604" name="l01604"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a8229396adfd306d15e8a05dac3fe8c29"> 1604</a></span>  std::vector&lt;Ack_packet::Individual_ack::Ptr&gt; <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a8229396adfd306d15e8a05dac3fe8c29">m_rcv_acked_packets</a>;</div>
-<div class="line"><a id="l01605" name="l01605"></a><span class="lineno"> 1605</span><span class="comment"></span> </div>
-<div class="line"><a id="l01606" name="l01606"></a><span class="lineno"> 1606</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01607" name="l01607"></a><span class="lineno"> 1607</span><span class="comment">   * While Node::low_lvl_recv_and_handle() or async part of Node::async_wait_latency_then_handle_incoming() is running,</span></div>
-<div class="line"><a id="l01608" name="l01608"></a><span class="lineno"> 1608</span><span class="comment">   * contains the rcv_wnd (eventual #m_snd_remote_rcv_wnd) value in the last observed ACK low-level</span></div>
-<div class="line"><a id="l01609" name="l01609"></a><span class="lineno"> 1609</span><span class="comment">   * packet received in those methods.  The reasoning is similar to #m_rcv_acked_packets.  See</span></div>
-<div class="line"><a id="l01610" name="l01610"></a><span class="lineno"> 1610</span><span class="comment">   * Node::handle_ack_to_established() for details.</span></div>
-<div class="line"><a id="l01611" name="l01611"></a><span class="lineno"> 1611</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01612" name="l01612"></a><span class="lineno"> 1612</span><span class="comment">   * This gains meaning only in thread W and only within Node::low_lvl_recv_and_handle()/etc.</span></div>
-<div class="line"><a id="l01613" name="l01613"></a><span class="lineno"> 1613</span><span class="comment">   * and loses meaning after either method exits.  This should NOT</span></div>
-<div class="line"><a id="l01614" name="l01614"></a><span class="lineno"> 1614</span><span class="comment">   * be accessed outside of thread W and is not protected by a mutex.</span></div>
-<div class="line"><a id="l01615" name="l01615"></a><span class="lineno"> 1615</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01616" name="l01616"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a07d885e5c8ec85e7ef8718dc0468ffe9"> 1616</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a07d885e5c8ec85e7ef8718dc0468ffe9">m_snd_pending_rcv_wnd</a>;</div>
-<div class="line"><a id="l01617" name="l01617"></a><span class="lineno"> 1617</span><span class="comment"></span> </div>
-<div class="line"><a id="l01618" name="l01618"></a><span class="lineno"> 1618</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01619" name="l01619"></a><span class="lineno"> 1619</span><span class="comment">   * The last rcv_wnd value sent to the other side (in an ACK).  This is used to gauge how much the</span></div>
-<div class="line"><a id="l01620" name="l01620"></a><span class="lineno"> 1620</span><span class="comment">   * true rcv_wnd has increased since the value that the sender probably (assuming ACK was not lost)</span></div>
-<div class="line"><a id="l01621" name="l01621"></a><span class="lineno"> 1621</span><span class="comment">   * knows.</span></div>
-<div class="line"><a id="l01622" name="l01622"></a><span class="lineno"> 1622</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01623" name="l01623"></a><span class="lineno"> 1623</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01624" name="l01624"></a><span class="lineno"> 1624</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01625" name="l01625"></a><span class="lineno"> 1625</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01626" name="l01626"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a7fa76b609ef0aa5962d8de77338cf9ee"> 1626</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a7fa76b609ef0aa5962d8de77338cf9ee">m_rcv_last_sent_rcv_wnd</a>;</div>
-<div class="line"><a id="l01627" name="l01627"></a><span class="lineno"> 1627</span><span class="comment"></span> </div>
-<div class="line"><a id="l01628" name="l01628"></a><span class="lineno"> 1628</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01629" name="l01629"></a><span class="lineno"> 1629</span><span class="comment">   * `true` indicates we are in a state where we&#39;ve decided other side needs to be informed that</span></div>
-<div class="line"><a id="l01630" name="l01630"></a><span class="lineno"> 1630</span><span class="comment">   * our receive window has increased substantially, so that it can resume sending data (probably</span></div>
-<div class="line"><a id="l01631" name="l01631"></a><span class="lineno"> 1631</span><span class="comment">   * after a zero window being advertised).</span></div>
-<div class="line"><a id="l01632" name="l01632"></a><span class="lineno"> 1632</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01633" name="l01633"></a><span class="lineno"> 1633</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01634" name="l01634"></a><span class="lineno"> 1634</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01635" name="l01635"></a><span class="lineno"> 1635</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01636" name="l01636"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad7414dfca4b869dd3a4e0de39195c69e"> 1636</a></span>  <span class="keywordtype">bool</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ad7414dfca4b869dd3a4e0de39195c69e">m_rcv_in_rcv_wnd_recovery</a>;</div>
-<div class="line"><a id="l01637" name="l01637"></a><span class="lineno"> 1637</span><span class="comment"></span> </div>
-<div class="line"><a id="l01638" name="l01638"></a><span class="lineno"> 1638</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01639" name="l01639"></a><span class="lineno"> 1639</span><span class="comment">   * Time point at which #m_rcv_in_rcv_wnd_recovery was last set to true.  It is only used when the</span></div>
-<div class="line"><a id="l01640" name="l01640"></a><span class="lineno"> 1640</span><span class="comment">   * latter is indeed true.</span></div>
-<div class="line"><a id="l01641" name="l01641"></a><span class="lineno"> 1641</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01642" name="l01642"></a><span class="lineno"> 1642</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01643" name="l01643"></a><span class="lineno"> 1643</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01644" name="l01644"></a><span class="lineno"> 1644</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01645" name="l01645"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a5476d9206f997fc9119b2a80b078ee87"> 1645</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a5476d9206f997fc9119b2a80b078ee87">m_rcv_wnd_recovery_start_time</a>;</div>
-<div class="line"><a id="l01646" name="l01646"></a><span class="lineno"> 1646</span><span class="comment"></span> </div>
-<div class="line"><a id="l01647" name="l01647"></a><span class="lineno"> 1647</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01648" name="l01648"></a><span class="lineno"> 1648</span><span class="comment">   * When #m_rcv_in_rcv_wnd_recovery is `true`, this is the scheduled task to possibly</span></div>
-<div class="line"><a id="l01649" name="l01649"></a><span class="lineno"> 1649</span><span class="comment">   * send another unsolicited rcv_wnd-advertising ACK to the other side.</span></div>
-<div class="line"><a id="l01650" name="l01650"></a><span class="lineno"> 1650</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01651" name="l01651"></a><span class="lineno"> 1651</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01652" name="l01652"></a><span class="lineno"> 1652</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01653" name="l01653"></a><span class="lineno"> 1653</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01654" name="l01654"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#afd590cc70d06b8e903027e4924fd095a"> 1654</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">util::Scheduled_task_handle</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#afd590cc70d06b8e903027e4924fd095a">m_rcv_wnd_recovery_scheduled_task</a>;</div>
-<div class="line"><a id="l01655" name="l01655"></a><span class="lineno"> 1655</span><span class="comment"></span> </div>
-<div class="line"><a id="l01656" name="l01656"></a><span class="lineno"> 1656</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01657" name="l01657"></a><span class="lineno"> 1657</span><span class="comment">   * Timer started, assuming delayed ACKs are enabled, when the first Individual_ack is placed onto</span></div>
-<div class="line"><a id="l01658" name="l01658"></a><span class="lineno"> 1658</span><span class="comment">   * an empty #m_rcv_pending_acks; when it triggers, the pending individual acknowledgments are packed</span></div>
-<div class="line"><a id="l01659" name="l01659"></a><span class="lineno"> 1659</span><span class="comment">   * into as few as possible ACKs and sent to the other side.  After the handler exits</span></div>
-<div class="line"><a id="l01660" name="l01660"></a><span class="lineno"> 1660</span><span class="comment">   * #m_rcv_pending_acks is again empty and the process can repeat starting with the next received valid</span></div>
-<div class="line"><a id="l01661" name="l01661"></a><span class="lineno"> 1661</span><span class="comment">   * packet.</span></div>
-<div class="line"><a id="l01662" name="l01662"></a><span class="lineno"> 1662</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01663" name="l01663"></a><span class="lineno"> 1663</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01664" name="l01664"></a><span class="lineno"> 1664</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01665" name="l01665"></a><span class="lineno"> 1665</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01666" name="l01666"></a><span class="lineno"> 1666</span><span class="comment">   * ### Implementation notes ###</span></div>
-<div class="line"><a id="l01667" name="l01667"></a><span class="lineno"> 1667</span><span class="comment">   * In other places we have tended to replace a `Timer` with the far simpler util::schedule_task_from_now() (etc.)</span></div>
-<div class="line"><a id="l01668" name="l01668"></a><span class="lineno"> 1668</span><span class="comment">   * facility (which internally uses a `Timer` but hides its various annoyances and caveats).  Why not here?</span></div>
-<div class="line"><a id="l01669" name="l01669"></a><span class="lineno"> 1669</span><span class="comment">   * Answer: This timer is scheduled and fires often (could be on the order of every 1-500 milliseconds) and throughout</span></div>
-<div class="line"><a id="l01670" name="l01670"></a><span class="lineno"> 1670</span><span class="comment">   * a given socket&#39;s existence; hence the potential performance effects aren&#39;t worth the risk (or at least mental</span></div>
-<div class="line"><a id="l01671" name="l01671"></a><span class="lineno"> 1671</span><span class="comment">   * energy spent on evaluating that risk, originally and over time).  The conservative thing to do is reuse a single</span></div>
-<div class="line"><a id="l01672" name="l01672"></a><span class="lineno"> 1672</span><span class="comment">   * `Timer` repeatedly, as we do here.</span></div>
-<div class="line"><a id="l01673" name="l01673"></a><span class="lineno"> 1673</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01674" name="l01674"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a88f967e74f8618c94088113e918ab52f"> 1674</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#ae7416d64d2989051104bb396e28e15e6">util::Timer</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a88f967e74f8618c94088113e918ab52f">m_rcv_delayed_ack_timer</a>;</div>
-<div class="line"><a id="l01675" name="l01675"></a><span class="lineno"> 1675</span><span class="comment"></span> </div>
-<div class="line"><a id="l01676" name="l01676"></a><span class="lineno"> 1676</span><span class="comment">  /// Stats regarding incoming traffic (and resulting outgoing ACKs) for this connection so far.</span></div>
-<div class="line"><a id="l01677" name="l01677"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a7d1f1d381749473f7a2471b8be20d6a8"> 1677</a></span><span class="comment"></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator.html">Peer_socket_receive_stats_accumulator</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a7d1f1d381749473f7a2471b8be20d6a8">m_rcv_stats</a>;</div>
-<div class="line"><a id="l01678" name="l01678"></a><span class="lineno"> 1678</span><span class="comment"></span> </div>
-<div class="line"><a id="l01679" name="l01679"></a><span class="lineno"> 1679</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01680" name="l01680"></a><span class="lineno"> 1680</span><span class="comment">   * The Initial Sequence Number (ISN) used in our original SYN or SYN_ACK.  Useful at least in re-sending the</span></div>
-<div class="line"><a id="l01681" name="l01681"></a><span class="lineno"> 1681</span><span class="comment">   * original SYN or SYN_ACK if unacknowledged for too long.</span></div>
-<div class="line"><a id="l01682" name="l01682"></a><span class="lineno"> 1682</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01683" name="l01683"></a><span class="lineno"> 1683</span><span class="comment">   * @see #m_snd_flying_pkts_by_seq_num and #m_snd_flying_pkts_by_sent_when.</span></div>
-<div class="line"><a id="l01684" name="l01684"></a><span class="lineno"> 1684</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01685" name="l01685"></a><span class="lineno"> 1685</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01686" name="l01686"></a><span class="lineno"> 1686</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01687" name="l01687"></a><span class="lineno"> 1687</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01688" name="l01688"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aca66d1cb582ca027745d1ef847266cc4"> 1688</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aca66d1cb582ca027745d1ef847266cc4">m_snd_init_seq_num</a>;</div>
-<div class="line"><a id="l01689" name="l01689"></a><span class="lineno"> 1689</span><span class="comment"></span> </div>
-<div class="line"><a id="l01690" name="l01690"></a><span class="lineno"> 1690</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01691" name="l01691"></a><span class="lineno"> 1691</span><span class="comment">   * The sequence number for the start of the data in the next new DATA packet to be sent out.  By</span></div>
-<div class="line"><a id="l01692" name="l01692"></a><span class="lineno"> 1692</span><span class="comment">   * &quot;new&quot; I mean not-retransmitted (assuming retransmission is even enabled).</span></div>
-<div class="line"><a id="l01693" name="l01693"></a><span class="lineno"> 1693</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01694" name="l01694"></a><span class="lineno"> 1694</span><span class="comment">   * @todo Possibly #m_snd_next_seq_num will apply to other packet types than DATA, probably anything to do with</span></div>
-<div class="line"><a id="l01695" name="l01695"></a><span class="lineno"> 1695</span><span class="comment">   * connection termination.</span></div>
-<div class="line"><a id="l01696" name="l01696"></a><span class="lineno"> 1696</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01697" name="l01697"></a><span class="lineno"> 1697</span><span class="comment">   * @see #m_snd_flying_pkts_by_seq_num and #m_snd_flying_pkts_by_sent_when.</span></div>
-<div class="line"><a id="l01698" name="l01698"></a><span class="lineno"> 1698</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01699" name="l01699"></a><span class="lineno"> 1699</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01700" name="l01700"></a><span class="lineno"> 1700</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01701" name="l01701"></a><span class="lineno"> 1701</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01702" name="l01702"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a1f8bebf649551131e6ed6e75c6f98d54"> 1702</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a1f8bebf649551131e6ed6e75c6f98d54">m_snd_next_seq_num</a>;</div>
-<div class="line"><a id="l01703" name="l01703"></a><span class="lineno"> 1703</span><span class="comment"></span> </div>
-<div class="line"><a id="l01704" name="l01704"></a><span class="lineno"> 1704</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01705" name="l01705"></a><span class="lineno"> 1705</span><span class="comment">   * The collection of all In-flight packets, indexed by sequence number and ordered from most to</span></div>
-<div class="line"><a id="l01706" name="l01706"></a><span class="lineno"> 1706</span><span class="comment">   * least recently sent (including those queued up to wire-send in pacing module).  See also</span></div>
-<div class="line"><a id="l01707" name="l01707"></a><span class="lineno"> 1707</span><span class="comment">   * #m_snd_flying_pkts_by_seq_num which is a similar map but in order of sequence number.</span></div>
-<div class="line"><a id="l01708" name="l01708"></a><span class="lineno"> 1708</span><span class="comment">   * That map&#39;s keys are again sequence numbers, but its values are iterators into the present map</span></div>
-<div class="line"><a id="l01709" name="l01709"></a><span class="lineno"> 1709</span><span class="comment">   * to save memory and avoid having to sync up data between the two (the only thing we must sync between them</span></div>
-<div class="line"><a id="l01710" name="l01710"></a><span class="lineno"> 1710</span><span class="comment">   * are their key sets). The two maps together can be considered to be the sender-side &quot;scoreboard.&quot;</span></div>
-<div class="line"><a id="l01711" name="l01711"></a><span class="lineno"> 1711</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01712" name="l01712"></a><span class="lineno"> 1712</span><span class="comment">   * These are all the packets that have been sent but not Acknowledged that we have not yet considered</span></div>
-<div class="line"><a id="l01713" name="l01713"></a><span class="lineno"> 1713</span><span class="comment">   * Dropped.  (With retransmission on, packets are never considered</span></div>
-<div class="line"><a id="l01714" name="l01714"></a><span class="lineno"> 1714</span><span class="comment">   * permanently Dropped, but they are considered Dropped until retransmitted.)  With retransmission</span></div>
-<div class="line"><a id="l01715" name="l01715"></a><span class="lineno"> 1715</span><span class="comment">   * off, the ultimate goal of having this structure at all is to handle ACKs, the ultimate goal of</span></div>
-<div class="line"><a id="l01716" name="l01716"></a><span class="lineno"> 1716</span><span class="comment">   * which is, in turn, for the In-flight vs. Congestion Window comparison for congestion control.</span></div>
-<div class="line"><a id="l01717" name="l01717"></a><span class="lineno"> 1717</span><span class="comment">   * With retransmission on, the structure additionally stores the data in the In-flight packets, so</span></div>
-<div class="line"><a id="l01718" name="l01718"></a><span class="lineno"> 1718</span><span class="comment">   * that they can be retransmitted if we determine they were probably dropped.</span></div>
-<div class="line"><a id="l01719" name="l01719"></a><span class="lineno"> 1719</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01720" name="l01720"></a><span class="lineno"> 1720</span><span class="comment">   * With retransmission on, this is NOT the retransmission queue itself -- i.e., this does NOT</span></div>
-<div class="line"><a id="l01721" name="l01721"></a><span class="lineno"> 1721</span><span class="comment">   * store packet data that we know should be retransmitted when possible but rather only the data</span></div>
-<div class="line"><a id="l01722" name="l01722"></a><span class="lineno"> 1722</span><span class="comment">   * already In-flight (whether from first attempt or from retransmission).</span></div>
-<div class="line"><a id="l01723" name="l01723"></a><span class="lineno"> 1723</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01724" name="l01724"></a><span class="lineno"> 1724</span><span class="comment">   * Please see #m_snd_flying_pkts_by_seq_num for a breakdown of the sequence number space.</span></div>
-<div class="line"><a id="l01725" name="l01725"></a><span class="lineno"> 1725</span><span class="comment">   * Since that structure contains iterators to exactly the values in the present map, that comment will</span></div>
-<div class="line"><a id="l01726" name="l01726"></a><span class="lineno"> 1726</span><span class="comment">   * explain which packets are in the present map.</span></div>
-<div class="line"><a id="l01727" name="l01727"></a><span class="lineno"> 1727</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01728" name="l01728"></a><span class="lineno"> 1728</span><span class="comment">   * #m_snd_flying_pkts_by_sent_when contains In-flight Sent_packet objects as values, with each particular</span></div>
-<div class="line"><a id="l01729" name="l01729"></a><span class="lineno"> 1729</span><span class="comment">   * Sent_packet&#39;s first sequence number as its key.  If there are no In-flight Sent_packet objects, then</span></div>
-<div class="line"><a id="l01730" name="l01730"></a><span class="lineno"> 1730</span><span class="comment">   * `m_snd_flying_pkts_by_sent_when.empty()`.</span></div>
-<div class="line"><a id="l01731" name="l01731"></a><span class="lineno"> 1731</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01732" name="l01732"></a><span class="lineno"> 1732</span><span class="comment">   * The above is an invariant, to be true at the end of each boost.asio handler in thread W, at</span></div>
-<div class="line"><a id="l01733" name="l01733"></a><span class="lineno"> 1733</span><span class="comment">   * least.</span></div>
-<div class="line"><a id="l01734" name="l01734"></a><span class="lineno"> 1734</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01735" name="l01735"></a><span class="lineno"> 1735</span><span class="comment">   * Each sent packet therefore is placed into #m_snd_flying_pkts_by_sent_when, at the front (as is standard</span></div>
-<div class="line"><a id="l01736" name="l01736"></a><span class="lineno"> 1736</span><span class="comment">   * for a Linked_hash_map, and as is expected, since they are ordered by send time).  (Note, however,</span></div>
-<div class="line"><a id="l01737" name="l01737"></a><span class="lineno"> 1737</span><span class="comment">   * that being in this map does not mean it has been sent; it may only be queued up to be sent and</span></div>
-<div class="line"><a id="l01738" name="l01738"></a><span class="lineno"> 1738</span><span class="comment">   * waiting in the pacing module; however, pacing does not change the order of packets but merely</span></div>
-<div class="line"><a id="l01739" name="l01739"></a><span class="lineno"> 1739</span><span class="comment">   * the exact send moment, which cannot change the position in this queue.)</span></div>
-<div class="line"><a id="l01740" name="l01740"></a><span class="lineno"> 1740</span><span class="comment">   * When a packet is Acknowledged, it is removed from #m_snd_flying_pkts_by_sent_when -- could be from anywhere</span></div>
-<div class="line"><a id="l01741" name="l01741"></a><span class="lineno"> 1741</span><span class="comment">   * in the ordering.   Similarly to Acknowledged packets, Dropped ones are also removed.</span></div>
-<div class="line"><a id="l01742" name="l01742"></a><span class="lineno"> 1742</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01743" name="l01743"></a><span class="lineno"> 1743</span><span class="comment">   * The type used is a map indexed by starting sequence number of each packet but also in order of</span></div>
-<div class="line"><a id="l01744" name="l01744"></a><span class="lineno"> 1744</span><span class="comment">   * being sent out.  Lookup by sequence number is near constant time; insertion near the end is</span></div>
-<div class="line"><a id="l01745" name="l01745"></a><span class="lineno"> 1745</span><span class="comment">   * near constant time; and iteration by order of when it was sent out is easy/fast, with iterators</span></div>
-<div class="line"><a id="l01746" name="l01746"></a><span class="lineno"> 1746</span><span class="comment">   * remaining valid as long as the underlying elements are not erased.  Why use this particular</span></div>
-<div class="line"><a id="l01747" name="l01747"></a><span class="lineno"> 1747</span><span class="comment">   * structure?  Well, the lookup by sequence number occurs all the time, such as when matching up</span></div>
-<div class="line"><a id="l01748" name="l01748"></a><span class="lineno"> 1748</span><span class="comment">   * an arriving acknowledgment against a packet that we&#39;d sent out.  We&#39;d prefer it to not invalidate</span></div>
-<div class="line"><a id="l01749" name="l01749"></a><span class="lineno"> 1749</span><span class="comment">   * iterators when something is erased, so Linked_hash_map is good in that way</span></div>
-<div class="line"><a id="l01750" name="l01750"></a><span class="lineno"> 1750</span><span class="comment">   * also.  So finally, why order by time it was queued up for sending (as opposed to by sequence</span></div>
-<div class="line"><a id="l01751" name="l01751"></a><span class="lineno"> 1751</span><span class="comment">   * number, as would be the case if this were an std::map)?  In truth, both are needed, which is why</span></div>
-<div class="line"><a id="l01752" name="l01752"></a><span class="lineno"> 1752</span><span class="comment">   * #m_snd_flying_pkts_by_seq_num exists.  This ordering is needed particularly for the</span></div>
-<div class="line"><a id="l01753" name="l01753"></a><span class="lineno"> 1753</span><span class="comment">   * `m_acks_after_me` logic, wherein we count how many times packets that were sent after a given packet</span></div>
-<div class="line"><a id="l01754" name="l01754"></a><span class="lineno"> 1754</span><span class="comment">   * have been acknowledged so far; by arranging the packets in that same order, that value can be</span></div>
-<div class="line"><a id="l01755" name="l01755"></a><span class="lineno"> 1755</span><span class="comment">   * easily and quickly accumulated by walking back from the most recently sent packet.  On the other</span></div>
-<div class="line"><a id="l01756" name="l01756"></a><span class="lineno"> 1756</span><span class="comment">   * hand, some operations need sequence number ordering, which is why we have #m_snd_flying_pkts_by_seq_num;</span></div>
-<div class="line"><a id="l01757" name="l01757"></a><span class="lineno"> 1757</span><span class="comment">   * note (again) that the two maps have the same key set, with one&#39;s values being iterators pointing into</span></div>
-<div class="line"><a id="l01758" name="l01758"></a><span class="lineno"> 1758</span><span class="comment">   * the other.</span></div>
-<div class="line"><a id="l01759" name="l01759"></a><span class="lineno"> 1759</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01760" name="l01760"></a><span class="lineno"> 1760</span><span class="comment">   * Whenever a packet with `m_sent_when.back().m_sent_time == T` is acknowledged, we need to (by definition of</span></div>
-<div class="line"><a id="l01761" name="l01761"></a><span class="lineno"> 1761</span><span class="comment">   * Sent_packet::m_acks_after_me) increment `m_acks_after_me` for each packet with</span></div>
-<div class="line"><a id="l01762" name="l01762"></a><span class="lineno"> 1762</span><span class="comment">   * `m_sent_when.back().m_sent_time &lt; T`.  So, if we</span></div>
-<div class="line"><a id="l01763" name="l01763"></a><span class="lineno"> 1763</span><span class="comment">   * find the latest-sent element that satisfies that, then all packets appearing to the right</span></div>
-<div class="line"><a id="l01764" name="l01764"></a><span class="lineno"> 1764</span><span class="comment">   * (i.e., &quot;sent less recently than&quot;) and including that one, in this ordering, should have `m_acks_after_me`</span></div>
-<div class="line"><a id="l01765" name="l01765"></a><span class="lineno"> 1765</span><span class="comment">   * incremented.  Using a certain priority queue-using algorithm (see Node::handle_accumulated_acks())</span></div>
-<div class="line"><a id="l01766" name="l01766"></a><span class="lineno"> 1766</span><span class="comment">   * we can do this quite efficiently.</span></div>
-<div class="line"><a id="l01767" name="l01767"></a><span class="lineno"> 1767</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01768" name="l01768"></a><span class="lineno"> 1768</span><span class="comment">   * Note that this means Sent_packet::m_acks_after_me is strictly increasing as one walks this map.</span></div>
-<div class="line"><a id="l01769" name="l01769"></a><span class="lineno"> 1769</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01770" name="l01770"></a><span class="lineno"> 1770</span><span class="comment">   * Since any packet with `m_acks_after_me &gt;= C`, where `C` is some constant, is considered Dropped and</span></div>
-<div class="line"><a id="l01771" name="l01771"></a><span class="lineno"> 1771</span><span class="comment">   * removed from #m_snd_flying_pkts_by_seq_num and therefore this map also, we also get the property that</span></div>
-<div class="line"><a id="l01772" name="l01772"></a><span class="lineno"> 1772</span><span class="comment">   * if we find a packet in this map for which that is true, then it is also true for all packets</span></div>
-<div class="line"><a id="l01773" name="l01773"></a><span class="lineno"> 1773</span><span class="comment">   * following it (&quot;sent less recently&quot; than it) in this map.  This allows us to more quickly determine which</span></div>
-<div class="line"><a id="l01774" name="l01774"></a><span class="lineno"> 1774</span><span class="comment">   * packets should be removed from #m_snd_flying_pkts_by_sent_when, without having to walk the entire structure(s).</span></div>
-<div class="line"><a id="l01775" name="l01775"></a><span class="lineno"> 1775</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01776" name="l01776"></a><span class="lineno"> 1776</span><span class="comment">   * ### Memory use ###</span></div>
-<div class="line"><a id="l01777" name="l01777"></a><span class="lineno"> 1777</span><span class="comment">   * This structure&#39;s memory use is naturally bounded by the Congestion Window.</span></div>
-<div class="line"><a id="l01778" name="l01778"></a><span class="lineno"> 1778</span><span class="comment">   * Congestion control will not let it grow beyond that many packets (bytes really, but you get the point).</span></div>
-<div class="line"><a id="l01779" name="l01779"></a><span class="lineno"> 1779</span><span class="comment">   * At that point blocks will stay on the Send buffer, until that fills up too.  Then send() will refuse to enqueue</span></div>
-<div class="line"><a id="l01780" name="l01780"></a><span class="lineno"> 1780</span><span class="comment">   * any more packets (telling the user as much).</span></div>
-<div class="line"><a id="l01781" name="l01781"></a><span class="lineno"> 1781</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01782" name="l01782"></a><span class="lineno"> 1782</span><span class="comment">   * ### Thread safety ###</span></div>
-<div class="line"><a id="l01783" name="l01783"></a><span class="lineno"> 1783</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01784" name="l01784"></a><span class="lineno"> 1784</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01785" name="l01785"></a><span class="lineno"> 1785</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01786" name="l01786"></a><span class="lineno"> 1786</span><span class="comment">   * @see Sent_when and Sent_packet::m_sent_when, where if `X` is the the last element of the latter sequence, then</span></div>
-<div class="line"><a id="l01787" name="l01787"></a><span class="lineno"> 1787</span><span class="comment">   *      `X.m_sent_time` is the value by which elements in the present map are ordered.  However, this only</span></div>
-<div class="line"><a id="l01788" name="l01788"></a><span class="lineno"> 1788</span><span class="comment">   *      happens to be the case, because by definition an element</span></div>
-<div class="line"><a id="l01789" name="l01789"></a><span class="lineno"> 1789</span><span class="comment">   *      is always placed at the front of the present map (Linked_hash_map), and this order is inductively maintained;</span></div>
-<div class="line"><a id="l01790" name="l01790"></a><span class="lineno"> 1790</span><span class="comment">   *      AND MEANWHILE A Sent_when::m_sent_time&#39;s constructed value can only increase over time (which is a guaranteed</span></div>
-<div class="line"><a id="l01791" name="l01791"></a><span class="lineno"> 1791</span><span class="comment">   *      property of the clock we use (::Fine_clock)).</span></div>
-<div class="line"><a id="l01792" name="l01792"></a><span class="lineno"> 1792</span><span class="comment">   * @see #m_snd_flying_bytes, which must always be updated to be accurate w/r/t</span></div>
-<div class="line"><a id="l01793" name="l01793"></a><span class="lineno"> 1793</span><span class="comment">   *      #m_snd_flying_pkts_by_sent_when.  Use Node::snd_flying_pkts_updated() whenever</span></div>
-<div class="line"><a id="l01794" name="l01794"></a><span class="lineno"> 1794</span><span class="comment">   *      #m_snd_flying_pkts_by_sent_when is changed.</span></div>
-<div class="line"><a id="l01795" name="l01795"></a><span class="lineno"> 1795</span><span class="comment">   * @see #m_snd_flying_pkts_by_seq_num, which provides an ordering of the elements of</span></div>
-<div class="line"><a id="l01796" name="l01796"></a><span class="lineno"> 1796</span><span class="comment">   *      #m_snd_flying_pkts_by_sent_when by sequence number.  Whereas the present structure is used to</span></div>
-<div class="line"><a id="l01797" name="l01797"></a><span class="lineno"> 1797</span><span class="comment">   *      determine `m_acks_after_me` (since logically &quot;after&quot; means &quot;sent after&quot;), `..._by_seq_num`</span></div>
-<div class="line"><a id="l01798" name="l01798"></a><span class="lineno"> 1798</span><span class="comment">   *      is akin to the more classic TCP scoreboard, which is used to subdivide the sequence number</span></div>
-<div class="line"><a id="l01799" name="l01799"></a><span class="lineno"> 1799</span><span class="comment">   *      space (closely related to #m_snd_next_seq_num and such).  With</span></div>
-<div class="line"><a id="l01800" name="l01800"></a><span class="lineno"> 1800</span><span class="comment">   *      retransmission off, &quot;after&quot; would simply mean &quot;having higher sequence number,&quot; so</span></div>
-<div class="line"><a id="l01801" name="l01801"></a><span class="lineno"> 1801</span><span class="comment">   *      #m_snd_flying_pkts_by_sent_when would already provide this ordering, but with retransmission on</span></div>
-<div class="line"><a id="l01802" name="l01802"></a><span class="lineno"> 1802</span><span class="comment">   *      a retransmitted packet with a lower number could be sent after one with a higher number.</span></div>
-<div class="line"><a id="l01803" name="l01803"></a><span class="lineno"> 1803</span><span class="comment">   *      To make the code simpler, we therefore rely on a separate structure in either situation.</span></div>
-<div class="line"><a id="l01804" name="l01804"></a><span class="lineno"> 1804</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01805" name="l01805"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad"> 1805</a></span>  <a class="code hl_class" href="classflow_1_1util_1_1Linked__hash__map.html">Sent_pkt_by_sent_when_map</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad">m_snd_flying_pkts_by_sent_when</a>;</div>
-<div class="line"><a id="l01806" name="l01806"></a><span class="lineno"> 1806</span><span class="comment"></span> </div>
-<div class="line"><a id="l01807" name="l01807"></a><span class="lineno"> 1807</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01808" name="l01808"></a><span class="lineno"> 1808</span><span class="comment">   * The collection of all In-flight packets (including those queued up to send in pacing module),</span></div>
-<div class="line"><a id="l01809" name="l01809"></a><span class="lineno"> 1809</span><span class="comment">   * indexed AND ordered by sequence number.  See also #m_snd_flying_pkts_by_sent_when which is a similar map</span></div>
-<div class="line"><a id="l01810" name="l01810"></a><span class="lineno"> 1810</span><span class="comment">   * but in order of time sent.  Our map&#39;s keys are sequence numbers again, but its values are iterators</span></div>
-<div class="line"><a id="l01811" name="l01811"></a><span class="lineno"> 1811</span><span class="comment">   * into #m_snd_flying_pkts_by_sent_when to save memory and avoid having to sync up data between the two</span></div>
-<div class="line"><a id="l01812" name="l01812"></a><span class="lineno"> 1812</span><span class="comment">   * (only keys are in sync).  The two maps together can be considered to be the &quot;scoreboard,&quot; though in fact</span></div>
-<div class="line"><a id="l01813" name="l01813"></a><span class="lineno"> 1813</span><span class="comment">   * the present structure alone is closer to a classic TCP scoreboard.</span></div>
-<div class="line"><a id="l01814" name="l01814"></a><span class="lineno"> 1814</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01815" name="l01815"></a><span class="lineno"> 1815</span><span class="comment">   * The key sets of the two maps are identical.  The values in this map are iterators to exactly all</span></div>
-<div class="line"><a id="l01816" name="l01816"></a><span class="lineno"> 1816</span><span class="comment">   * elements of #m_snd_flying_pkts_by_sent_when.  One can think of the present map as essentially achieving an</span></div>
-<div class="line"><a id="l01817" name="l01817"></a><span class="lineno"> 1817</span><span class="comment">   * alternate ordering of the values in the other map.</span></div>
-<div class="line"><a id="l01818" name="l01818"></a><span class="lineno"> 1818</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01819" name="l01819"></a><span class="lineno"> 1819</span><span class="comment">   * That said, the structure&#39;s contents and ordering are closely related to a breakdown of the sequence</span></div>
-<div class="line"><a id="l01820" name="l01820"></a><span class="lineno"> 1820</span><span class="comment">   * number space.  I provide this breakdown here.  I list the</span></div>
-<div class="line"><a id="l01821" name="l01821"></a><span class="lineno"> 1821</span><span class="comment">   * sequence number ranges in increasing order starting with the ISN.  Let `first_flying_seq_num</span></div>
-<div class="line"><a id="l01822" name="l01822"></a><span class="lineno"> 1822</span><span class="comment">   * = m_snd_flying_pkts_by_seq_num.begin()-&gt;first` (i.e., the first key Sequence_number in</span></div>
-<div class="line"><a id="l01823" name="l01823"></a><span class="lineno"> 1823</span><span class="comment">   * #m_snd_flying_pkts_by_seq_num) for exposition purposes.</span></div>
-<div class="line"><a id="l01824" name="l01824"></a><span class="lineno"> 1824</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01825" name="l01825"></a><span class="lineno"> 1825</span><span class="comment">   *   - #m_snd_init_seq_num =</span></div>
-<div class="line"><a id="l01826" name="l01826"></a><span class="lineno"> 1826</span><span class="comment">   *     - SYN or SYN_ACK</span></div>
-<div class="line"><a id="l01827" name="l01827"></a><span class="lineno"> 1827</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01828" name="l01828"></a><span class="lineno"> 1828</span><span class="comment">   *   - [`m_snd_init_seq_num + 1`, `first_flying_seq_num - 1`] =</span></div>
-<div class="line"><a id="l01829" name="l01829"></a><span class="lineno"> 1829</span><span class="comment">   *     - Largest possible range of sequence numbers such that each datum represented by this range</span></div>
-<div class="line"><a id="l01830" name="l01830"></a><span class="lineno"> 1830</span><span class="comment">   *       has been sent and either:</span></div>
-<div class="line"><a id="l01831" name="l01831"></a><span class="lineno"> 1831</span><span class="comment">   *       - Acknowledged (ACK received for it); or</span></div>
-<div class="line"><a id="l01832" name="l01832"></a><span class="lineno"> 1832</span><span class="comment">   *       - Dropped (ACK not received; we consider it dropped due to some factor like timeout or</span></div>
-<div class="line"><a id="l01833" name="l01833"></a><span class="lineno"> 1833</span><span class="comment">   *         duplicate ACKs);</span></div>
-<div class="line"><a id="l01834" name="l01834"></a><span class="lineno"> 1834</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01835" name="l01835"></a><span class="lineno"> 1835</span><span class="comment">   *   - [`first_flying_seq_num`, `first_flying_seq_num + N - 1`] =</span></div>
-<div class="line"><a id="l01836" name="l01836"></a><span class="lineno"> 1836</span><span class="comment">   *     - The first packet that has been sent that is neither Acknowledged nor Dropped.  `N` is length</span></div>
-<div class="line"><a id="l01837" name="l01837"></a><span class="lineno"> 1837</span><span class="comment">   *       of that packet.  This is always the first packet, if any, to be considered Dropped in the</span></div>
-<div class="line"><a id="l01838" name="l01838"></a><span class="lineno"> 1838</span><span class="comment">   *       future.  This packet is categorized In-flight.</span></div>
-<div class="line"><a id="l01839" name="l01839"></a><span class="lineno"> 1839</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01840" name="l01840"></a><span class="lineno"> 1840</span><span class="comment">   *   - [`first_flying_seq_num + N`, `m_snd_next_seq_num - 1`] =</span></div>
-<div class="line"><a id="l01841" name="l01841"></a><span class="lineno"> 1841</span><span class="comment">   *       - All remaining sent packets.  Each packet in this range is one of the following:</span></div>
-<div class="line"><a id="l01842" name="l01842"></a><span class="lineno"> 1842</span><span class="comment">   *         - Acknowledged;</span></div>
-<div class="line"><a id="l01843" name="l01843"></a><span class="lineno"> 1843</span><span class="comment">   *         - not Acknowledged and not Dropped = categorized In-flight.</span></div>
-<div class="line"><a id="l01844" name="l01844"></a><span class="lineno"> 1844</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01845" name="l01845"></a><span class="lineno"> 1845</span><span class="comment">   *   - [#m_snd_next_seq_num, ...] =</span></div>
-<div class="line"><a id="l01846" name="l01846"></a><span class="lineno"> 1846</span><span class="comment">   *     - Unsent packets, if any.</span></div>
-<div class="line"><a id="l01847" name="l01847"></a><span class="lineno"> 1847</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01848" name="l01848"></a><span class="lineno"> 1848</span><span class="comment">   * #m_snd_flying_pkts_by_sent_when and #m_snd_flying_pkts_by_seq_num contain In-flight Sent_packet objects as values</span></div>
-<div class="line"><a id="l01849" name="l01849"></a><span class="lineno"> 1849</span><span class="comment">   * (though the latter indirectly via iterator into the former) with each particular Sent_packet&#39;s first sequence</span></div>
-<div class="line"><a id="l01850" name="l01850"></a><span class="lineno"> 1850</span><span class="comment">   * number as its key in either structure.  If there are no In-flight Sent_packet objects, then</span></div>
-<div class="line"><a id="l01851" name="l01851"></a><span class="lineno"> 1851</span><span class="comment">   * `m_snd_flying_pkts_by_{sent_when|seq_num}.empty()` and hence `first_flying_seq_num` above does not</span></div>
-<div class="line"><a id="l01852" name="l01852"></a><span class="lineno"> 1852</span><span class="comment">   * exist. Each of the [ranges] above can be null (empty).</span></div>
-<div class="line"><a id="l01853" name="l01853"></a><span class="lineno"> 1853</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01854" name="l01854"></a><span class="lineno"> 1854</span><span class="comment">   * Each sent packet therefore is placed into #m_snd_flying_pkts_by_seq_num, at the back (if it&#39;s a new packet) or</span></div>
-<div class="line"><a id="l01855" name="l01855"></a><span class="lineno"> 1855</span><span class="comment">   * possibly elsewhere (if it&#39;s retransmitted) -- while it is also placed into #m_snd_flying_pkts_by_sent_when but</span></div>
-<div class="line"><a id="l01856" name="l01856"></a><span class="lineno"> 1856</span><span class="comment">   * always at the front (as, regardless of retransmission or anything else, it is the latest packet to be SENT).  When</span></div>
-<div class="line"><a id="l01857" name="l01857"></a><span class="lineno"> 1857</span><span class="comment">   * packet is Acknowledged, it is removed from `m_snd_flying_pkts_by_*` -- could be from anywhere in</span></div>
-<div class="line"><a id="l01858" name="l01858"></a><span class="lineno"> 1858</span><span class="comment">   * the ordering.  Similarly to Acknowledged packets, Dropped ones are also removed.</span></div>
-<div class="line"><a id="l01859" name="l01859"></a><span class="lineno"> 1859</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01860" name="l01860"></a><span class="lineno"> 1860</span><span class="comment">   * Why do we need this map type in addition to `Linked_hash_map m_snd_flying_pkts_by_sent_when`?  Answer: Essentially,</span></div>
-<div class="line"><a id="l01861" name="l01861"></a><span class="lineno"> 1861</span><span class="comment">   * when an acknowledgment comes in, we need to be able to determine where in the sequence number space this is.</span></div>
-<div class="line"><a id="l01862" name="l01862"></a><span class="lineno"> 1862</span><span class="comment">   * If packets are ordered by send time -- not sequence number -- and the sequence number does not match</span></div>
-<div class="line"><a id="l01863" name="l01863"></a><span class="lineno"> 1863</span><span class="comment">   * exactly one of the elements here (e.g., it erroneously straddles one, or it is a duplicate acknowledgement,</span></div>
-<div class="line"><a id="l01864" name="l01864"></a><span class="lineno"> 1864</span><span class="comment">   * which means that element isn&#39;t in the map any longer), then a tree-sorted-by-key map is invaluable</span></div>
-<div class="line"><a id="l01865" name="l01865"></a><span class="lineno"> 1865</span><span class="comment">   * (in particular: to get `upper_bound()`, and also to travel to the previous-by-sequence-number packet</span></div>
-<div class="line"><a id="l01866" name="l01866"></a><span class="lineno"> 1866</span><span class="comment">   * from the latter).  So logarithmic-time upper-bound searches and iteration by sequence number are what we want and</span></div>
-<div class="line"><a id="l01867" name="l01867"></a><span class="lineno"> 1867</span><span class="comment">   * get with this added ordering on top of #m_snd_flying_pkts_by_sent_when.</span></div>
-<div class="line"><a id="l01868" name="l01868"></a><span class="lineno"> 1868</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01869" name="l01869"></a><span class="lineno"> 1869</span><span class="comment">   * ### Memory use ###</span></div>
-<div class="line"><a id="l01870" name="l01870"></a><span class="lineno"> 1870</span><span class="comment">   * This structure&#39;s memory use is naturally bounded the same as #m_snd_flying_pkts_by_sent_when.</span></div>
-<div class="line"><a id="l01871" name="l01871"></a><span class="lineno"> 1871</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01872" name="l01872"></a><span class="lineno"> 1872</span><span class="comment">   * ### Thread safety ###</span></div>
-<div class="line"><a id="l01873" name="l01873"></a><span class="lineno"> 1873</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01874" name="l01874"></a><span class="lineno"> 1874</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01875" name="l01875"></a><span class="lineno"> 1875</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01876" name="l01876"></a><span class="lineno"> 1876</span><span class="comment">   * @see #m_snd_flying_pkts_by_sent_when. There&#39;s a &quot;see also&quot; comment there that contrasts these two</span></div>
-<div class="line"><a id="l01877" name="l01877"></a><span class="lineno"> 1877</span><span class="comment">   *      important structures.</span></div>
-<div class="line"><a id="l01878" name="l01878"></a><span class="lineno"> 1878</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01879" name="l01879"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a2db7d11ece920d4adcacd00eaa2253fd"> 1879</a></span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1958264af0c40f3c9c5769ddff4c9ade">Sent_pkt_by_seq_num_map</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a2db7d11ece920d4adcacd00eaa2253fd">m_snd_flying_pkts_by_seq_num</a>;</div>
-<div class="line"><a id="l01880" name="l01880"></a><span class="lineno"> 1880</span><span class="comment"></span> </div>
-<div class="line"><a id="l01881" name="l01881"></a><span class="lineno"> 1881</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01882" name="l01882"></a><span class="lineno"> 1882</span><span class="comment">   * The number of bytes contained in all In-flight packets, used at least for comparison against</span></div>
-<div class="line"><a id="l01883" name="l01883"></a><span class="lineno"> 1883</span><span class="comment">   * the congestion window (CWND).  More formally, this is the sum of all Sent_packet::m_size values</span></div>
-<div class="line"><a id="l01884" name="l01884"></a><span class="lineno"> 1884</span><span class="comment">   * in #m_snd_flying_pkts_by_sent_when.  We keep this, instead of computing it whenever needed, for</span></div>
-<div class="line"><a id="l01885" name="l01885"></a><span class="lineno"> 1885</span><span class="comment">   * performance.  In various TCP and related RFCs this value (or something spiritually similar, if</span></div>
-<div class="line"><a id="l01886" name="l01886"></a><span class="lineno"> 1886</span><span class="comment">   * only cumulative ACKs are used) is called &quot;pipe&quot; or &quot;FlightSize.&quot;</span></div>
-<div class="line"><a id="l01887" name="l01887"></a><span class="lineno"> 1887</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01888" name="l01888"></a><span class="lineno"> 1888</span><span class="comment">   * Though in protocols like DCCP, where CWND is stored in packets, instead of bytes, &quot;pipe&quot; is</span></div>
-<div class="line"><a id="l01889" name="l01889"></a><span class="lineno"> 1889</span><span class="comment">   * actually just `m_snd_flying_pkts_by_sent_when.size()`.  Not for us though.</span></div>
-<div class="line"><a id="l01890" name="l01890"></a><span class="lineno"> 1890</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01891" name="l01891"></a><span class="lineno"> 1891</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01892" name="l01892"></a><span class="lineno"> 1892</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01893" name="l01893"></a><span class="lineno"> 1893</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01894" name="l01894"></a><span class="lineno"> 1894</span><span class="comment">   * @see #m_snd_flying_pkts_by_sent_when, which must always be updated to be accurate w/r/t</span></div>
-<div class="line"><a id="l01895" name="l01895"></a><span class="lineno"> 1895</span><span class="comment">   *      #m_snd_flying_bytes.  Use Node::snd_flying_pkts_updated() whenever #m_snd_flying_pkts_by_sent_when</span></div>
-<div class="line"><a id="l01896" name="l01896"></a><span class="lineno"> 1896</span><span class="comment">   *      is changed.</span></div>
-<div class="line"><a id="l01897" name="l01897"></a><span class="lineno"> 1897</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01898" name="l01898"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ae870847f024fca7109c15557bb165480"> 1898</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ae870847f024fca7109c15557bb165480">m_snd_flying_bytes</a>;</div>
-<div class="line"><a id="l01899" name="l01899"></a><span class="lineno"> 1899</span><span class="comment"></span> </div>
-<div class="line"><a id="l01900" name="l01900"></a><span class="lineno"> 1900</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01901" name="l01901"></a><span class="lineno"> 1901</span><span class="comment">   * Helper data structure to store the packet IDs of packets that are marked Dropped during a single run</span></div>
-<div class="line"><a id="l01902" name="l01902"></a><span class="lineno"> 1902</span><span class="comment">   * through accumulated ACKs; it is a data member instead of local variable for performance only.  The pattern is</span></div>
-<div class="line"><a id="l01903" name="l01903"></a><span class="lineno"> 1903</span><span class="comment">   * to simply `clear()` it just before use, then load it up with stuff in that same round of ACK handling;</span></div>
-<div class="line"><a id="l01904" name="l01904"></a><span class="lineno"> 1904</span><span class="comment">   * and the same thing each time we need to handle accumulated ACKs.  Normally one would just create one</span></div>
-<div class="line"><a id="l01905" name="l01905"></a><span class="lineno"> 1905</span><span class="comment">   * of these locally within the code `{` block `}` each time instead.</span></div>
-<div class="line"><a id="l01906" name="l01906"></a><span class="lineno"> 1906</span><span class="comment">   * Not doing so avoids unnecessary various internal-to-`vector` buffer</span></div>
-<div class="line"><a id="l01907" name="l01907"></a><span class="lineno"> 1907</span><span class="comment">   * allocations.  Instead the internal buffer will grow as large as it needs to and not go down from there, so</span></div>
-<div class="line"><a id="l01908" name="l01908"></a><span class="lineno"> 1908</span><span class="comment">   * that it can be reused in subsequent operations.  (Even `clear()` does not internally shrink the buffer.)</span></div>
-<div class="line"><a id="l01909" name="l01909"></a><span class="lineno"> 1909</span><span class="comment">   * Of course some memory is held unnecessarily, but it&#39;s a small amount; on the other hand the performance</span></div>
-<div class="line"><a id="l01910" name="l01910"></a><span class="lineno"> 1910</span><span class="comment">   * gain may be non-trivial due to the frequency of the ACK-handling code being invoked.</span></div>
-<div class="line"><a id="l01911" name="l01911"></a><span class="lineno"> 1911</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01912" name="l01912"></a><span class="lineno"> 1912</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01913" name="l01913"></a><span class="lineno"> 1913</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01914" name="l01914"></a><span class="lineno"> 1914</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01915" name="l01915"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aea98297d775f2085c21daf41c6582200"> 1915</a></span>  std::vector&lt;order_num_t&gt; <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aea98297d775f2085c21daf41c6582200">m_snd_temp_pkts_marked_to_drop</a>;</div>
-<div class="line"><a id="l01916" name="l01916"></a><span class="lineno"> 1916</span><span class="comment"></span> </div>
-<div class="line"><a id="l01917" name="l01917"></a><span class="lineno"> 1917</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01918" name="l01918"></a><span class="lineno"> 1918</span><span class="comment">   * For the Sent_packet representing the next packet to be sent, this is the value to assign to</span></div>
-<div class="line"><a id="l01919" name="l01919"></a><span class="lineno"> 1919</span><span class="comment">   * `m_sent_when.back().first`.  In other words it&#39;s an ever-increasing number that is sort of like</span></div>
-<div class="line"><a id="l01920" name="l01920"></a><span class="lineno"> 1920</span><span class="comment">   * a sequence number but one per packet and represents time at which sent, not order in the byte stream.</span></div>
-<div class="line"><a id="l01921" name="l01921"></a><span class="lineno"> 1921</span><span class="comment">   * In particular the same packet retransmitted will have the same sequence number the 2nd time but</span></div>
-<div class="line"><a id="l01922" name="l01922"></a><span class="lineno"> 1922</span><span class="comment">   * an increased order number.  Starts at 0.</span></div>
-<div class="line"><a id="l01923" name="l01923"></a><span class="lineno"> 1923</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01924" name="l01924"></a><span class="lineno"> 1924</span><span class="comment">   * This is only used for book-keeping locally and never transmitted over network.</span></div>
-<div class="line"><a id="l01925" name="l01925"></a><span class="lineno"> 1925</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01926" name="l01926"></a><span class="lineno"> 1926</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01927" name="l01927"></a><span class="lineno"> 1927</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01928" name="l01928"></a><span class="lineno"> 1928</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01929" name="l01929"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a1ec79951579d595bb790be87189d6e6c"> 1929</a></span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">order_num_t</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a1ec79951579d595bb790be87189d6e6c">m_snd_last_order_num</a>;</div>
-<div class="line"><a id="l01930" name="l01930"></a><span class="lineno"> 1930</span><span class="comment"></span> </div>
-<div class="line"><a id="l01931" name="l01931"></a><span class="lineno"> 1931</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01932" name="l01932"></a><span class="lineno"> 1932</span><span class="comment">   * If retransmission is on, this is the retransmission queue.  It&#39;s the queue of packets determined to have</span></div>
-<div class="line"><a id="l01933" name="l01933"></a><span class="lineno"> 1933</span><span class="comment">   * been dropped and thus to be retransmitted, when Congestion Window allows this.  Packet in Sent_packet::m_packet</span></div>
-<div class="line"><a id="l01934" name="l01934"></a><span class="lineno"> 1934</span><span class="comment">   * field of element at top of the queue is to be retransmitted next; and the element itself is to be inserted into</span></div>
-<div class="line"><a id="l01935" name="l01935"></a><span class="lineno"> 1935</span><span class="comment">   * #m_snd_flying_pkts_by_sent_when while popped from the present structure.  The packet&#39;s Data_packet::m_rexmit_id</span></div>
-<div class="line"><a id="l01936" name="l01936"></a><span class="lineno"> 1936</span><span class="comment">   * should be incremented before sending; and the Sent_packet::m_sent_when `vector` should be appended with the</span></div>
-<div class="line"><a id="l01937" name="l01937"></a><span class="lineno"> 1937</span><span class="comment">   * then-current time (for future RTT calculation).</span></div>
-<div class="line"><a id="l01938" name="l01938"></a><span class="lineno"> 1938</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01939" name="l01939"></a><span class="lineno"> 1939</span><span class="comment">   * If retransmission is off, this is empty.</span></div>
-<div class="line"><a id="l01940" name="l01940"></a><span class="lineno"> 1940</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01941" name="l01941"></a><span class="lineno"> 1941</span><span class="comment">   * Why use `list&lt;&gt;` and not `queue&lt;&gt;` or `deque&lt;&gt;`?  Answer: I&#39;d like to use `list::splice()`.</span></div>
-<div class="line"><a id="l01942" name="l01942"></a><span class="lineno"> 1942</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01943" name="l01943"></a><span class="lineno"> 1943</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01944" name="l01944"></a><span class="lineno"> 1944</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01945" name="l01945"></a><span class="lineno"> 1945</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01946" name="l01946"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a845f21b754ef641b65b1fe44727fb429"> 1946</a></span>  std::list&lt;boost::shared_ptr&lt;Sent_packet&gt;&gt; <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a845f21b754ef641b65b1fe44727fb429">m_snd_rexmit_q</a>;</div>
-<div class="line"><a id="l01947" name="l01947"></a><span class="lineno"> 1947</span><span class="comment"></span> </div>
-<div class="line"><a id="l01948" name="l01948"></a><span class="lineno"> 1948</span><span class="comment">  /// Equals `m_snd_rexmit_q.size().`  Kept since `m_snd_rexmit_q.size()` may be @em O(n) depending on implementation.</span></div>
-<div class="line"><a id="l01949" name="l01949"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a9f5063c85a2070822cf69a530f0af1f5"> 1949</a></span><span class="comment"></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a9f5063c85a2070822cf69a530f0af1f5">m_snd_rexmit_q_size</a>;</div>
-<div class="line"><a id="l01950" name="l01950"></a><span class="lineno"> 1950</span><span class="comment"></span> </div>
-<div class="line"><a id="l01951" name="l01951"></a><span class="lineno"> 1951</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01952" name="l01952"></a><span class="lineno"> 1952</span><span class="comment">   * The congestion control strategy in use for this connection on this side.  Node informs</span></div>
-<div class="line"><a id="l01953" name="l01953"></a><span class="lineno"> 1953</span><span class="comment">   * this object of events, such as acknowedgments and loss events; conversely this object informs</span></div>
-<div class="line"><a id="l01954" name="l01954"></a><span class="lineno"> 1954</span><span class="comment">   * (or can inform if asked) the Node whether or not DATA packets can be sent, by means of</span></div>
-<div class="line"><a id="l01955" name="l01955"></a><span class="lineno"> 1955</span><span class="comment">   * providing the Node with the socket&#39;s current Congestion Window (CWND) computed based on the</span></div>
-<div class="line"><a id="l01956" name="l01956"></a><span class="lineno"> 1956</span><span class="comment">   * particular Congestion_control_strategy implementation&#39;s algorithm (e.g., Reno or Westwood+).</span></div>
-<div class="line"><a id="l01957" name="l01957"></a><span class="lineno"> 1957</span><span class="comment">   * Node then determines whether data can be sent by comparing #m_snd_flying_bytes (# of bytes we think</span></div>
-<div class="line"><a id="l01958" name="l01958"></a><span class="lineno"> 1958</span><span class="comment">   * are currently In-flight) to CWND (# of bytes the strategy allows to be In-flight currently).</span></div>
-<div class="line"><a id="l01959" name="l01959"></a><span class="lineno"> 1959</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01960" name="l01960"></a><span class="lineno"> 1960</span><span class="comment">   * ### Life cycle ###</span></div>
-<div class="line"><a id="l01961" name="l01961"></a><span class="lineno"> 1961</span><span class="comment">   * #m_snd_cong_ctl must be initialized to an instance before user gains access to this</span></div>
-<div class="line"><a id="l01962" name="l01962"></a><span class="lineno"> 1962</span><span class="comment">   * socket; the pointer must never change subsequently except back to null (permanently).  The</span></div>
-<div class="line"><a id="l01963" name="l01963"></a><span class="lineno"> 1963</span><span class="comment">   * Peer_socket destructor, at the latest, will delete the underlying object, as #m_snd_cong_ctl</span></div>
-<div class="line"><a id="l01964" name="l01964"></a><span class="lineno"> 1964</span><span class="comment">   * will be destructed.  (Note `unique_ptr` has no copy operator or</span></div>
-<div class="line"><a id="l01965" name="l01965"></a><span class="lineno"> 1965</span><span class="comment">   * constructor.)  There is a 1-to-1 relationship between `*this` and #m_snd_cong_ctl.</span></div>
-<div class="line"><a id="l01966" name="l01966"></a><span class="lineno"> 1966</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01967" name="l01967"></a><span class="lineno"> 1967</span><span class="comment">   * ### Visibility between Congestion_control_strategy and Peer_socket ###</span></div>
-<div class="line"><a id="l01968" name="l01968"></a><span class="lineno"> 1968</span><span class="comment">   * #m_snd_cong_ctl gets read-only (`const`!) but otherwise complete</span></div>
-<div class="line"><a id="l01969" name="l01969"></a><span class="lineno"> 1969</span><span class="comment">   * private access (via `friend`) to the contents of `*this` Peer_socket.  For example, it can</span></div>
-<div class="line"><a id="l01970" name="l01970"></a><span class="lineno"> 1970</span><span class="comment">   * read `this-&gt;m_snd_smoothed_round_trip_time` (the SRTT) and use it</span></div>
-<div class="line"><a id="l01971" name="l01971"></a><span class="lineno"> 1971</span><span class="comment">   * for computations if needed.  Node and Peer_socket get only strict public API access to</span></div>
-<div class="line"><a id="l01972" name="l01972"></a><span class="lineno"> 1972</span><span class="comment">   * #m_snd_cong_ctl, which is a black box to it.</span></div>
-<div class="line"><a id="l01973" name="l01973"></a><span class="lineno"> 1973</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01974" name="l01974"></a><span class="lineno"> 1974</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01975" name="l01975"></a><span class="lineno"> 1975</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01976" name="l01976"></a><span class="lineno"> 1976</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01977" name="l01977"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a35eb43f2b5d7dd46a941def4523f673c"> 1977</a></span>  boost::movelib::unique_ptr&lt;Congestion_control_strategy&gt; <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a35eb43f2b5d7dd46a941def4523f673c">m_snd_cong_ctl</a>;</div>
-<div class="line"><a id="l01978" name="l01978"></a><span class="lineno"> 1978</span><span class="comment"></span> </div>
-<div class="line"><a id="l01979" name="l01979"></a><span class="lineno"> 1979</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01980" name="l01980"></a><span class="lineno"> 1980</span><span class="comment">   * The receive window: the maximum number of bytes the other side has advertised it would be</span></div>
-<div class="line"><a id="l01981" name="l01981"></a><span class="lineno"> 1981</span><span class="comment">   * willing to accept into its Receive buffer if they&#39;d arrived at the moment that advertisement</span></div>
-<div class="line"><a id="l01982" name="l01982"></a><span class="lineno"> 1982</span><span class="comment">   * was generated by the other side.  This starts as 0 (undefined) and is originally set at SYN_ACK</span></div>
-<div class="line"><a id="l01983" name="l01983"></a><span class="lineno"> 1983</span><span class="comment">   * or SYN_ACK_ACK receipt and then subsequently updated upon each ACK received.  Each such update</span></div>
-<div class="line"><a id="l01984" name="l01984"></a><span class="lineno"> 1984</span><span class="comment">   * is called a &quot;rcv_wnd update&quot; or &quot;window update.&quot;</span></div>
-<div class="line"><a id="l01985" name="l01985"></a><span class="lineno"> 1985</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01986" name="l01986"></a><span class="lineno"> 1986</span><span class="comment">   * #m_snd_cong_ctl provides congestion control; this value provides flow control.  The socket&#39;s</span></div>
-<div class="line"><a id="l01987" name="l01987"></a><span class="lineno"> 1987</span><span class="comment">   * state machine must be extremely careful whenever either this value or</span></div>
-<div class="line"><a id="l01988" name="l01988"></a><span class="lineno"> 1988</span><span class="comment">   * `m_snd_cong_ctl-&gt;congestion_window_bytes()` may increase, as when that occurs it should call</span></div>
-<div class="line"><a id="l01989" name="l01989"></a><span class="lineno"> 1989</span><span class="comment">   * Node::send_worker() in order to possibly send data over the network.</span></div>
-<div class="line"><a id="l01990" name="l01990"></a><span class="lineno"> 1990</span><span class="comment">   *</span></div>
-<div class="line"><a id="l01991" name="l01991"></a><span class="lineno"> 1991</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l01992" name="l01992"></a><span class="lineno"> 1992</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l01993" name="l01993"></a><span class="lineno"> 1993</span><span class="comment">   */</span></div>
-<div class="line"><a id="l01994" name="l01994"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a12611e0ac9e8b86b8304b855050a8c8c"> 1994</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a12611e0ac9e8b86b8304b855050a8c8c">m_snd_remote_rcv_wnd</a>;</div>
-<div class="line"><a id="l01995" name="l01995"></a><span class="lineno"> 1995</span><span class="comment"></span> </div>
-<div class="line"><a id="l01996" name="l01996"></a><span class="lineno"> 1996</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l01997" name="l01997"></a><span class="lineno"> 1997</span><span class="comment">   * The outgoing available bandwidth estimator for this connection on this side.  Node informs</span></div>
-<div class="line"><a id="l01998" name="l01998"></a><span class="lineno"> 1998</span><span class="comment">   * this object of events, namely as acknowedgments; conversely this object informs</span></div>
-<div class="line"><a id="l01999" name="l01999"></a><span class="lineno"> 1999</span><span class="comment">   * (or can inform if asked) the Node what it thinks is the current available bandwidth for</span></div>
-<div class="line"><a id="l02000" name="l02000"></a><span class="lineno"> 2000</span><span class="comment">   * user data in DATA packets.  This can be useful at least for some forms of congestion control</span></div>
-<div class="line"><a id="l02001" name="l02001"></a><span class="lineno"> 2001</span><span class="comment">   * but possibly as information for the user, which is why it&#39;s an independent object and not</span></div>
-<div class="line"><a id="l02002" name="l02002"></a><span class="lineno"> 2002</span><span class="comment">   * part of a specific congestion control strategy (I only mention this because the mechanics of such</span></div>
-<div class="line"><a id="l02003" name="l02003"></a><span class="lineno"> 2003</span><span class="comment">   * a bandwidth estimator typically originate in service of a congestion control algorithm like Westwood+).</span></div>
-<div class="line"><a id="l02004" name="l02004"></a><span class="lineno"> 2004</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02005" name="l02005"></a><span class="lineno"> 2005</span><span class="comment">   * ### Life cycle ###</span></div>
-<div class="line"><a id="l02006" name="l02006"></a><span class="lineno"> 2006</span><span class="comment">   * It must be initialized to an instance before user gains access to this</span></div>
-<div class="line"><a id="l02007" name="l02007"></a><span class="lineno"> 2007</span><span class="comment">   * socket; the pointer must never change subsequently except back to null (permanently).  The</span></div>
-<div class="line"><a id="l02008" name="l02008"></a><span class="lineno"> 2008</span><span class="comment">   * Peer_socket destructor, at the latest, will delete the underlying object, as #m_snd_bandwidth_estimator</span></div>
-<div class="line"><a id="l02009" name="l02009"></a><span class="lineno"> 2009</span><span class="comment">   * is destroyed along with `*this`.  The only reason it&#39;s a pointer is that it takes a Const_ptr in the constructor,</span></div>
-<div class="line"><a id="l02010" name="l02010"></a><span class="lineno"> 2010</span><span class="comment">   * and that&#39;s not available during Peer_socket construction yet.  (Note `unique_ptr` has no copy operator or</span></div>
-<div class="line"><a id="l02011" name="l02011"></a><span class="lineno"> 2011</span><span class="comment">   * constructor.)  There is a 1-to-1 relationship between `*this` and #m_snd_bandwidth_estimator.</span></div>
-<div class="line"><a id="l02012" name="l02012"></a><span class="lineno"> 2012</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02013" name="l02013"></a><span class="lineno"> 2013</span><span class="comment">   * ### Visibility between Send_bandwidth_estimator and Peer_socket ###</span></div>
-<div class="line"><a id="l02014" name="l02014"></a><span class="lineno"> 2014</span><span class="comment">   * The former gets read-only (`const`!) but otherwise complete private access (via `friend`) to the contents of</span></div>
-<div class="line"><a id="l02015" name="l02015"></a><span class="lineno"> 2015</span><span class="comment">   * `*this` Peer_socket.  For example, it can read #m_snd_smoothed_round_trip_time (the SRTT) and use it</span></div>
-<div class="line"><a id="l02016" name="l02016"></a><span class="lineno"> 2016</span><span class="comment">   * for computations if needed.  Node and Peer_socket get only strict public API access to</span></div>
-<div class="line"><a id="l02017" name="l02017"></a><span class="lineno"> 2017</span><span class="comment">   * #m_snd_bandwidth_estimator, which is a black box to it.</span></div>
-<div class="line"><a id="l02018" name="l02018"></a><span class="lineno"> 2018</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02019" name="l02019"></a><span class="lineno"> 2019</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l02020" name="l02020"></a><span class="lineno"> 2020</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l02021" name="l02021"></a><span class="lineno"> 2021</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02022" name="l02022"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a2dd08c5fed4d179e4fde3a632c084751"> 2022</a></span>  boost::movelib::unique_ptr&lt;Send_bandwidth_estimator&gt; <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a2dd08c5fed4d179e4fde3a632c084751">m_snd_bandwidth_estimator</a>;</div>
-<div class="line"><a id="l02023" name="l02023"></a><span class="lineno"> 2023</span><span class="comment"></span> </div>
-<div class="line"><a id="l02024" name="l02024"></a><span class="lineno"> 2024</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02025" name="l02025"></a><span class="lineno"> 2025</span><span class="comment">   * Estimated current round trip time of packets, computed as a smooth value over the</span></div>
-<div class="line"><a id="l02026" name="l02026"></a><span class="lineno"> 2026</span><span class="comment">   * past individual RTT measurements.  This is updated each time we make an RTT measurement (i.e.,</span></div>
-<div class="line"><a id="l02027" name="l02027"></a><span class="lineno"> 2027</span><span class="comment">   * receive a valid, non-duplicate acknowledgment of a packet we&#39;d sent).  The algorithm to compute</span></div>
-<div class="line"><a id="l02028" name="l02028"></a><span class="lineno"> 2028</span><span class="comment">   * it is taken from RFC 6298.  The value is 0 (not a legal value otherwise) until the first RTT</span></div>
-<div class="line"><a id="l02029" name="l02029"></a><span class="lineno"> 2029</span><span class="comment">   * measurement is made.</span></div>
-<div class="line"><a id="l02030" name="l02030"></a><span class="lineno"> 2030</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02031" name="l02031"></a><span class="lineno"> 2031</span><span class="comment">   * We use #Fine_duration (the high fine-grainedness and large bit width corresponding to #Fine_clock) to</span></div>
-<div class="line"><a id="l02032" name="l02032"></a><span class="lineno"> 2032</span><span class="comment">   * store this, and the algorithm we use to compute it avoids losing digits via unnecessary</span></div>
-<div class="line"><a id="l02033" name="l02033"></a><span class="lineno"> 2033</span><span class="comment">   * conversions between units (e.g., nanoseconds -&gt; milliseconds).</span></div>
-<div class="line"><a id="l02034" name="l02034"></a><span class="lineno"> 2034</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02035" name="l02035"></a><span class="lineno"> 2035</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l02036" name="l02036"></a><span class="lineno"> 2036</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l02037" name="l02037"></a><span class="lineno"> 2037</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02038" name="l02038"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad08b53052e7eedfa7a925258f5ef1cba"> 2038</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ad08b53052e7eedfa7a925258f5ef1cba">m_snd_smoothed_round_trip_time</a>;</div>
-<div class="line"><a id="l02039" name="l02039"></a><span class="lineno"> 2039</span><span class="comment"></span> </div>
-<div class="line"><a id="l02040" name="l02040"></a><span class="lineno"> 2040</span><span class="comment">  /// RTTVAR used for #m_snd_smoothed_round_trip_time calculation.  @see #m_snd_smoothed_round_trip_time.</span></div>
-<div class="line"><a id="l02041" name="l02041"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a27ce5b19ab4abcf61aa07153c46b2be3"> 2041</a></span><span class="comment"></span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a27ce5b19ab4abcf61aa07153c46b2be3">m_round_trip_time_variance</a>;</div>
-<div class="line"><a id="l02042" name="l02042"></a><span class="lineno"> 2042</span><span class="comment"></span> </div>
-<div class="line"><a id="l02043" name="l02043"></a><span class="lineno"> 2043</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02044" name="l02044"></a><span class="lineno"> 2044</span><span class="comment">   * The Drop Timer engine, which controls how In-flight (#m_snd_flying_pkts_by_sent_when) packets are</span></div>
-<div class="line"><a id="l02045" name="l02045"></a><span class="lineno"> 2045</span><span class="comment">   * considered Dropped due to being unacknowledged for too long.  Used while #m_int_state is</span></div>
-<div class="line"><a id="l02046" name="l02046"></a><span class="lineno"> 2046</span><span class="comment">   * Int_state::S_ESTABLISHED.</span></div>
-<div class="line"><a id="l02047" name="l02047"></a><span class="lineno"> 2047</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02048" name="l02048"></a><span class="lineno"> 2048</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l02049" name="l02049"></a><span class="lineno"> 2049</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l02050" name="l02050"></a><span class="lineno"> 2050</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02051" name="l02051"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a037459e6f1345cedf45e490d544c8567"> 2051</a></span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ae804be57cf09b9bf76eafa8ffff73de6">Drop_timer_ptr</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a037459e6f1345cedf45e490d544c8567">m_snd_drop_timer</a>;</div>
-<div class="line"><a id="l02052" name="l02052"></a><span class="lineno"> 2052</span><span class="comment"></span> </div>
-<div class="line"><a id="l02053" name="l02053"></a><span class="lineno"> 2053</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02054" name="l02054"></a><span class="lineno"> 2054</span><span class="comment">   * The Drop Timeout: Time period between the next time #m_snd_drop_timer schedules a Drop Timer and that timer</span></div>
-<div class="line"><a id="l02055" name="l02055"></a><span class="lineno"> 2055</span><span class="comment">   * expiring.  This is updated each time #m_snd_smoothed_round_trip_time is updated, and the Drop_timer</span></div>
-<div class="line"><a id="l02056" name="l02056"></a><span class="lineno"> 2056</span><span class="comment">   * itself may change it under certain circumstances.</span></div>
-<div class="line"><a id="l02057" name="l02057"></a><span class="lineno"> 2057</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02058" name="l02058"></a><span class="lineno"> 2058</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l02059" name="l02059"></a><span class="lineno"> 2059</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l02060" name="l02060"></a><span class="lineno"> 2060</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02061" name="l02061"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a2d8aded3761028967fd3abb464e64936"> 2061</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a2d8aded3761028967fd3abb464e64936">m_snd_drop_timeout</a>;</div>
-<div class="line"><a id="l02062" name="l02062"></a><span class="lineno"> 2062</span><span class="comment"></span> </div>
-<div class="line"><a id="l02063" name="l02063"></a><span class="lineno"> 2063</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02064" name="l02064"></a><span class="lineno"> 2064</span><span class="comment">   * The state of outgoing packet pacing for this socket; segregated into a simple `struct` to keep</span></div>
-<div class="line"><a id="l02065" name="l02065"></a><span class="lineno"> 2065</span><span class="comment">   * Peer_socket shorter and easier to understand.  Packet pacing tries to combat the burstiness of</span></div>
-<div class="line"><a id="l02066" name="l02066"></a><span class="lineno"> 2066</span><span class="comment">   * outgoing low-level packet stream.</span></div>
-<div class="line"><a id="l02067" name="l02067"></a><span class="lineno"> 2067</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02068" name="l02068"></a><span class="lineno"> 2068</span><span class="comment">   * @see `struct Send_pacing_data` doc header for much detail.</span></div>
-<div class="line"><a id="l02069" name="l02069"></a><span class="lineno"> 2069</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02070" name="l02070"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a55b44104a2c305b9679434ba623a7357"> 2070</a></span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Send__pacing__data.html">Send_pacing_data</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a55b44104a2c305b9679434ba623a7357">m_snd_pacing_data</a>;</div>
-<div class="line"><a id="l02071" name="l02071"></a><span class="lineno"> 2071</span><span class="comment"></span> </div>
-<div class="line"><a id="l02072" name="l02072"></a><span class="lineno"> 2072</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02073" name="l02073"></a><span class="lineno"> 2073</span><span class="comment">   * The last time that Node has detected a packet loss event and so informed #m_snd_cong_ctl by calling</span></div>
-<div class="line"><a id="l02074" name="l02074"></a><span class="lineno"> 2074</span><span class="comment">   * the appropriate method of class Congestion_control_strategy.  Roughly speaking, this is used to</span></div>
-<div class="line"><a id="l02075" name="l02075"></a><span class="lineno"> 2075</span><span class="comment">   * determine whether the detection of a given dropped packet is part of the same loss event as the</span></div>
-<div class="line"><a id="l02076" name="l02076"></a><span class="lineno"> 2076</span><span class="comment">   * previous one; if so then #m_snd_cong_ctl is not informed again (presumably to avoid dropping CWND</span></div>
-<div class="line"><a id="l02077" name="l02077"></a><span class="lineno"> 2077</span><span class="comment">   * too fast); if not it is informed of the new loss event.  Even more roughly speaking, if the new</span></div>
-<div class="line"><a id="l02078" name="l02078"></a><span class="lineno"> 2078</span><span class="comment">   * event is within a certain time frame of #m_snd_last_loss_event_when, then they&#39;re considered in the</span></div>
-<div class="line"><a id="l02079" name="l02079"></a><span class="lineno"> 2079</span><span class="comment">   * same loss event.  You can find detailed discussion in a giant comment in</span></div>
-<div class="line"><a id="l02080" name="l02080"></a><span class="lineno"> 2080</span><span class="comment">   * Node::handle_accumulated_acks().</span></div>
-<div class="line"><a id="l02081" name="l02081"></a><span class="lineno"> 2081</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02082" name="l02082"></a><span class="lineno"> 2082</span><span class="comment">   * Before any loss events, this is set to its default value (zero time since epoch).</span></div>
-<div class="line"><a id="l02083" name="l02083"></a><span class="lineno"> 2083</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02084" name="l02084"></a><span class="lineno"> 2084</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l02085" name="l02085"></a><span class="lineno"> 2085</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l02086" name="l02086"></a><span class="lineno"> 2086</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02087" name="l02087"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aa9f77167af54cfe2921fab5fd143eff4"> 2087</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aa9f77167af54cfe2921fab5fd143eff4">m_snd_last_loss_event_when</a>;</div>
-<div class="line"><a id="l02088" name="l02088"></a><span class="lineno"> 2088</span><span class="comment"></span> </div>
-<div class="line"><a id="l02089" name="l02089"></a><span class="lineno"> 2089</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02090" name="l02090"></a><span class="lineno"> 2090</span><span class="comment">   * Time at which the last Data_packet low-level packet for this connection was sent.  We</span></div>
-<div class="line"><a id="l02091" name="l02091"></a><span class="lineno"> 2091</span><span class="comment">   * use this when determining whether the connection is in Idle Timeout (i.e., has sent no traffic</span></div>
-<div class="line"><a id="l02092" name="l02092"></a><span class="lineno"> 2092</span><span class="comment">   * for a while, which means there has been no data to send).  It&#39;s used for congestion control.</span></div>
-<div class="line"><a id="l02093" name="l02093"></a><span class="lineno"> 2093</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02094" name="l02094"></a><span class="lineno"> 2094</span><span class="comment">   * Before any packets are sent, this is set to its default value (zero time since epoch).</span></div>
-<div class="line"><a id="l02095" name="l02095"></a><span class="lineno"> 2095</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02096" name="l02096"></a><span class="lineno"> 2096</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l02097" name="l02097"></a><span class="lineno"> 2097</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l02098" name="l02098"></a><span class="lineno"> 2098</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02099" name="l02099"></a><span class="lineno"> 2099</span><span class="comment">   * ### Pacing ###</span></div>
-<div class="line"><a id="l02100" name="l02100"></a><span class="lineno"> 2100</span><span class="comment">   * See Send_packet_pacing #m_snd_pacing_data.  See pacing-relevant note on Sent_packet::m_sent_when</span></div>
-<div class="line"><a id="l02101" name="l02101"></a><span class="lineno"> 2101</span><span class="comment">   * which applies equally to this data member.</span></div>
-<div class="line"><a id="l02102" name="l02102"></a><span class="lineno"> 2102</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02103" name="l02103"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#af392484f79ffcead4f74ca351672d8d4"> 2103</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#af392484f79ffcead4f74ca351672d8d4">m_snd_last_data_sent_when</a>;</div>
-<div class="line"><a id="l02104" name="l02104"></a><span class="lineno"> 2104</span><span class="comment"></span> </div>
-<div class="line"><a id="l02105" name="l02105"></a><span class="lineno"> 2105</span><span class="comment">  /// Stats regarding outgoing traffic (and resulting incoming ACKs) for this connection so far.</span></div>
-<div class="line"><a id="l02106" name="l02106"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ab4aff3e65ef9551b6c5ab890173b741e"> 2106</a></span><span class="comment"></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket__send__stats__accumulator.html">Peer_socket_send_stats_accumulator</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ab4aff3e65ef9551b6c5ab890173b741e">m_snd_stats</a>;</div>
-<div class="line"><a id="l02107" name="l02107"></a><span class="lineno"> 2107</span><span class="comment"></span> </div>
-<div class="line"><a id="l02108" name="l02108"></a><span class="lineno"> 2108</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02109" name="l02109"></a><span class="lineno"> 2109</span><span class="comment">   * Random security token used during SYN_ACK-SYN_ACK_ACK.  For a given connection handshake, the</span></div>
-<div class="line"><a id="l02110" name="l02110"></a><span class="lineno"> 2110</span><span class="comment">   * SYN_ACK_ACK receiver ensures that #m_security_token it received is equal to the original one it</span></div>
-<div class="line"><a id="l02111" name="l02111"></a><span class="lineno"> 2111</span><span class="comment">   * had sent in SYN_ACK.  This first gains meaning upong sending SYN_ACK and it does not change afterwards.</span></div>
-<div class="line"><a id="l02112" name="l02112"></a><span class="lineno"> 2112</span><span class="comment">   * It is not used unless `!m_active_connect`.  See #m_active_connect.</span></div>
-<div class="line"><a id="l02113" name="l02113"></a><span class="lineno"> 2113</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02114" name="l02114"></a><span class="lineno"> 2114</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l02115" name="l02115"></a><span class="lineno"> 2115</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l02116" name="l02116"></a><span class="lineno"> 2116</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02117" name="l02117"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a33a90b123612cc2e6a119cfa95ba4f6d"> 2117</a></span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a59db68ed0c77a9f6e1a7aeeb3df2a6b9">security_token_t</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a33a90b123612cc2e6a119cfa95ba4f6d">m_security_token</a>;</div>
-<div class="line"><a id="l02118" name="l02118"></a><span class="lineno"> 2118</span><span class="comment"></span> </div>
-<div class="line"><a id="l02119" name="l02119"></a><span class="lineno"> 2119</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02120" name="l02120"></a><span class="lineno"> 2120</span><span class="comment">   * Connection attempt scheduled task; fires if an individual connection request packet is not answered with a reply</span></div>
-<div class="line"><a id="l02121" name="l02121"></a><span class="lineno"> 2121</span><span class="comment">   * packet in time.  It is readied when *any* SYN or SYN_ACK packet is sent, and fired if that packet has gone</span></div>
-<div class="line"><a id="l02122" name="l02122"></a><span class="lineno"> 2122</span><span class="comment">   * unacknowledged with a SYN_ACK or SYN_ACK_ACK (respectively), long enough to be retransmitted.</span></div>
-<div class="line"><a id="l02123" name="l02123"></a><span class="lineno"> 2123</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02124" name="l02124"></a><span class="lineno"> 2124</span><span class="comment">   * Connection establishment is aborted if it fires too many times, but #m_connection_timeout_scheduled_task is how</span></div>
-<div class="line"><a id="l02125" name="l02125"></a><span class="lineno"> 2125</span><span class="comment">   * &quot;too many times&quot; is determined.</span></div>
-<div class="line"><a id="l02126" name="l02126"></a><span class="lineno"> 2126</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02127" name="l02127"></a><span class="lineno"> 2127</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l02128" name="l02128"></a><span class="lineno"> 2128</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l02129" name="l02129"></a><span class="lineno"> 2129</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02130" name="l02130"></a><span class="lineno"> 2130</span><span class="comment">   * @see #m_connection_timeout_scheduled_task which keeps track of the entire process timing out, as opposed to the</span></div>
-<div class="line"><a id="l02131" name="l02131"></a><span class="lineno"> 2131</span><span class="comment">   *      individual attempts.</span></div>
-<div class="line"><a id="l02132" name="l02132"></a><span class="lineno"> 2132</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02133" name="l02133"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a85b3d271527dbaa04b1d9f751631fd71"> 2133</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">util::Scheduled_task_handle</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a85b3d271527dbaa04b1d9f751631fd71">m_init_rexmit_scheduled_task</a>;</div>
-<div class="line"><a id="l02134" name="l02134"></a><span class="lineno"> 2134</span><span class="comment"></span> </div>
-<div class="line"><a id="l02135" name="l02135"></a><span class="lineno"> 2135</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02136" name="l02136"></a><span class="lineno"> 2136</span><span class="comment">   * If currently using #m_init_rexmit_scheduled_task, this is the number of times the timer has already fired</span></div>
-<div class="line"><a id="l02137" name="l02137"></a><span class="lineno"> 2137</span><span class="comment">   * in this session.  So when the timer is readied the first time it&#39;s zero; if it fires and is</span></div>
-<div class="line"><a id="l02138" name="l02138"></a><span class="lineno"> 2138</span><span class="comment">   * thus readied again it&#39;s one; again =&gt; two; etc., until timer is canceled or connection is</span></div>
-<div class="line"><a id="l02139" name="l02139"></a><span class="lineno"> 2139</span><span class="comment">   * aborted due to too many retries.</span></div>
-<div class="line"><a id="l02140" name="l02140"></a><span class="lineno"> 2140</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02141" name="l02141"></a><span class="lineno"> 2141</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l02142" name="l02142"></a><span class="lineno"> 2142</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l02143" name="l02143"></a><span class="lineno"> 2143</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02144" name="l02144"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a0d1eecb59c62912b5630359df774dc62"> 2144</a></span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a0d1eecb59c62912b5630359df774dc62">m_init_rexmit_count</a>;</div>
-<div class="line"><a id="l02145" name="l02145"></a><span class="lineno"> 2145</span><span class="comment"></span> </div>
-<div class="line"><a id="l02146" name="l02146"></a><span class="lineno"> 2146</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02147" name="l02147"></a><span class="lineno"> 2147</span><span class="comment">   * Connection timeout scheduled task; fires if the entire initial connection process does not complete within a</span></div>
-<div class="line"><a id="l02148" name="l02148"></a><span class="lineno"> 2148</span><span class="comment">   * certain amount of time.  It is started when the SYN or SYN_ACK is sent the very first time (NOT counting</span></div>
-<div class="line"><a id="l02149" name="l02149"></a><span class="lineno"> 2149</span><span class="comment">   * resends), canceled when SYN_ACK or SYN_ACK_ACK (respectively) is received in response to ANY SYN or</span></div>
-<div class="line"><a id="l02150" name="l02150"></a><span class="lineno"> 2150</span><span class="comment">   * SYN_ACK (respevtively), and fired if the the latter does not occur in time.</span></div>
-<div class="line"><a id="l02151" name="l02151"></a><span class="lineno"> 2151</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02152" name="l02152"></a><span class="lineno"> 2152</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
-<div class="line"><a id="l02153" name="l02153"></a><span class="lineno"> 2153</span><span class="comment">   * not protected by a mutex.</span></div>
-<div class="line"><a id="l02154" name="l02154"></a><span class="lineno"> 2154</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02155" name="l02155"></a><span class="lineno"> 2155</span><span class="comment">   * @see #m_init_rexmit_scheduled_task which keeps track of *individual* attempts timing out, as opposed to the</span></div>
-<div class="line"><a id="l02156" name="l02156"></a><span class="lineno"> 2156</span><span class="comment">   *      entire process.</span></div>
-<div class="line"><a id="l02157" name="l02157"></a><span class="lineno"> 2157</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02158" name="l02158"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad772e56de286567c4b7a681907b5f285"> 2158</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">util::Scheduled_task_handle</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ad772e56de286567c4b7a681907b5f285">m_connection_timeout_scheduled_task</a>;</div>
-<div class="line"><a id="l02159" name="l02159"></a><span class="lineno"> 2159</span><span class="comment"></span> </div>
-<div class="line"><a id="l02160" name="l02160"></a><span class="lineno"> 2160</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02161" name="l02161"></a><span class="lineno"> 2161</span><span class="comment">   * This is the final set of stats collected at the time the socket was moved to S_CLOSED #m_state.</span></div>
-<div class="line"><a id="l02162" name="l02162"></a><span class="lineno"> 2162</span><span class="comment">   * If it has not yet moved to that state, this is not applicable (but equals Peer_socket_info()).</span></div>
-<div class="line"><a id="l02163" name="l02163"></a><span class="lineno"> 2163</span><span class="comment">   * It&#39;s used by info() to get at the final set of stats, before the source info is purged by the</span></div>
-<div class="line"><a id="l02164" name="l02164"></a><span class="lineno"> 2164</span><span class="comment">   * resource cleanup in sock_free_memory().</span></div>
-<div class="line"><a id="l02165" name="l02165"></a><span class="lineno"> 2165</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02166" name="l02166"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ac4c942e1bb6c4dc4b24251f294a2f92d"> 2166</a></span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__info.html">Peer_socket_info</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ac4c942e1bb6c4dc4b24251f294a2f92d">m_info_on_close</a>;</div>
-<div class="line"><a id="l02167" name="l02167"></a><span class="lineno"> 2167</span>}; <span class="comment">// class Peer_socket</span></div>
-<div class="line"><a id="l02168" name="l02168"></a><span class="lineno"> 2168</span> </div>
-<div class="line"><a id="l02169" name="l02169"></a><span class="lineno"> 2169</span><span class="comment"></span> </div>
-<div class="line"><a id="l02170" name="l02170"></a><span class="lineno"> 2170</span><span class="comment">/**</span></div>
-<div class="line"><a id="l02171" name="l02171"></a><span class="lineno"> 2171</span><span class="comment"> * @private</span></div>
-<div class="line"><a id="l02172" name="l02172"></a><span class="lineno"> 2172</span><span class="comment"> *</span></div>
-<div class="line"><a id="l02173" name="l02173"></a><span class="lineno"> 2173</span><span class="comment"> * Metadata (and data, if retransmission is on) for a packet that has been sent one (if</span></div>
-<div class="line"><a id="l02174" name="l02174"></a><span class="lineno"> 2174</span><span class="comment"> * retransmission is off) or possibly more (if on) times.  This is purely a data store, not a</span></div>
-<div class="line"><a id="l02175" name="l02175"></a><span class="lineno"> 2175</span><span class="comment"> * class.  It is not copyable, and moving them around by smart Sent_packet::Ptr is encouraged.</span></div>
-<div class="line"><a id="l02176" name="l02176"></a><span class="lineno"> 2176</span><span class="comment"> */</span></div>
-<div class="line"><a id="l02177" name="l02177"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html"> 2177</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">Peer_socket::Sent_packet</a> :</div>
-<div class="line"><a id="l02178" name="l02178"></a><span class="lineno"> 2178</span>  <span class="comment">// Endow us with shared_ptr&lt;&gt;s ::Ptr and ::Const_ptr (syntactic sugar).</span></div>
-<div class="line"><a id="l02179" name="l02179"></a><span class="lineno"> 2179</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html">util::Shared_ptr_alias_holder</a>&lt;boost::shared_ptr&lt;Peer_socket::Sent_packet&gt;&gt;,</div>
-<div class="line"><a id="l02180" name="l02180"></a><span class="lineno"> 2180</span>  <span class="keyword">private</span> boost::noncopyable</div>
-<div class="line"><a id="l02181" name="l02181"></a><span class="lineno"> 2181</span>{</div>
-<div class="line"><a id="l02182" name="l02182"></a><span class="lineno"> 2182</span>  <span class="comment">// Types.</span></div>
-<div class="line"><a id="l02183" name="l02183"></a><span class="lineno"> 2183</span> </div>
-<div class="line"><a id="l02184" name="l02184"></a><span class="lineno"> 2184</span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Sent_when</a>;</div>
-<div class="line"><a id="l02185" name="l02185"></a><span class="lineno"> 2185</span><span class="comment"></span> </div>
-<div class="line"><a id="l02186" name="l02186"></a><span class="lineno"> 2186</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02187" name="l02187"></a><span class="lineno"> 2187</span><span class="comment">   * Type used for #m_acks_after_me.  Use a small type to save memory; this is easily large enough,</span></div>
-<div class="line"><a id="l02188" name="l02188"></a><span class="lineno"> 2188</span><span class="comment">   * given that that we drop a packet after #m_acks_after_me exceeds a very small value (&lt; 10), and</span></div>
-<div class="line"><a id="l02189" name="l02189"></a><span class="lineno"> 2189</span><span class="comment">   * a given ACK can *conceivably* hold a few thousand individual acknowledgments (most likely many</span></div>
-<div class="line"><a id="l02190" name="l02190"></a><span class="lineno"> 2190</span><span class="comment">   * fewer).  In fact `uint8_t` is probably enough, but it seemed easier to not worry about</span></div>
-<div class="line"><a id="l02191" name="l02191"></a><span class="lineno"> 2191</span><span class="comment">   * overflows when doing arithmetic with these.</span></div>
-<div class="line"><a id="l02192" name="l02192"></a><span class="lineno"> 2192</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02193" name="l02193"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2"> 2193</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2">ack_count_t</a> = uint16_t;</div>
-<div class="line"><a id="l02194" name="l02194"></a><span class="lineno"> 2194</span> </div>
-<div class="line"><a id="l02195" name="l02195"></a><span class="lineno"> 2195</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l02196" name="l02196"></a><span class="lineno"> 2196</span><span class="comment"></span> </div>
-<div class="line"><a id="l02197" name="l02197"></a><span class="lineno"> 2197</span><span class="comment">  /// Number of bytes in the Data_packet::m_data field of the sent packet.</span></div>
-<div class="line"><a id="l02198" name="l02198"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a5b5762a1effba90f631c06ad76f9774b"> 2198</a></span><span class="comment"></span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a5b5762a1effba90f631c06ad76f9774b">m_size</a>;</div>
-<div class="line"><a id="l02199" name="l02199"></a><span class="lineno"> 2199</span><span class="comment"></span> </div>
-<div class="line"><a id="l02200" name="l02200"></a><span class="lineno"> 2200</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02201" name="l02201"></a><span class="lineno"> 2201</span><span class="comment">   * Time stamps, order numbers, and other info at the times when the different attempts (including</span></div>
-<div class="line"><a id="l02202" name="l02202"></a><span class="lineno"> 2202</span><span class="comment">   * original sending and retransmissions) to send the packet were given to the UDP net-stack. These are</span></div>
-<div class="line"><a id="l02203" name="l02203"></a><span class="lineno"> 2203</span><span class="comment">   * arranged in the order they were sent (0 = original transmission, 1 = first retransmission, 2 = second</span></div>
-<div class="line"><a id="l02204" name="l02204"></a><span class="lineno"> 2204</span><span class="comment">   * retransmission, ...).  If retransmission is off, this only ever has 1 element (set via</span></div>
-<div class="line"><a id="l02205" name="l02205"></a><span class="lineno"> 2205</span><span class="comment">   * constructor).</span></div>
-<div class="line"><a id="l02206" name="l02206"></a><span class="lineno"> 2206</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02207" name="l02207"></a><span class="lineno"> 2207</span><span class="comment">   * Along with each time stamp, we also store an order number.  It is much like a sequence</span></div>
-<div class="line"><a id="l02208" name="l02208"></a><span class="lineno"> 2208</span><span class="comment">   * number, except (a) we never send it anywhere (internal bookkeeping only), (b) it specifies</span></div>
-<div class="line"><a id="l02209" name="l02209"></a><span class="lineno"> 2209</span><span class="comment">   * the order in which the packets were sent off.  Why use that and not a `m_sent_time` timestamp?  Because</span></div>
-<div class="line"><a id="l02210" name="l02210"></a><span class="lineno"> 2210</span><span class="comment">   * `m_sent_time` can, in theory, have ties (i.e., it&#39;s kind of possible for 2 packets to be sent</span></div>
-<div class="line"><a id="l02211" name="l02211"></a><span class="lineno"> 2211</span><span class="comment">   * within the same high-resolution clock tick).  This gives us a solid way to order packets by send time</span></div>
-<div class="line"><a id="l02212" name="l02212"></a><span class="lineno"> 2212</span><span class="comment">   * in certain key algorithms.</span></div>
-<div class="line"><a id="l02213" name="l02213"></a><span class="lineno"> 2213</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02214" name="l02214"></a><span class="lineno"> 2214</span><span class="comment">   * Note: for reasons explained in the pacing module this should be the time stamp when we</span></div>
-<div class="line"><a id="l02215" name="l02215"></a><span class="lineno"> 2215</span><span class="comment">   * actually send it off to boost.asio UDP net-stack, not when we queue it into the pacing module (which can be</span></div>
-<div class="line"><a id="l02216" name="l02216"></a><span class="lineno"> 2216</span><span class="comment">   * quite a bit earlier, if pacing is enabled).  Subtlety: Note that &quot;time stamp when we actually send it off</span></div>
-<div class="line"><a id="l02217" name="l02217"></a><span class="lineno"> 2217</span><span class="comment">   * to boost.asio UDP net-stack&quot; IS the same as &quot;time stamp when boost.asio UDP net-stack actually performs the</span></div>
-<div class="line"><a id="l02218" name="l02218"></a><span class="lineno"> 2218</span><span class="comment">   * `sendto()` call&quot; in practice -- a good thing for accurate RTT measurements.</span></div>
-<div class="line"><a id="l02219" name="l02219"></a><span class="lineno"> 2219</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02220" name="l02220"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e"> 2220</a></span>  std::vector&lt;Sent_when&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">m_sent_when</a>;</div>
-<div class="line"><a id="l02221" name="l02221"></a><span class="lineno"> 2221</span><span class="comment"></span> </div>
-<div class="line"><a id="l02222" name="l02222"></a><span class="lineno"> 2222</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02223" name="l02223"></a><span class="lineno"> 2223</span><span class="comment">   * The number of times any packet with `m_sent_when.back().m_order_num &gt; this-&gt;m_sent_when.back().m_order_num`</span></div>
-<div class="line"><a id="l02224" name="l02224"></a><span class="lineno"> 2224</span><span class="comment">   * has been acknowledged.  Reworded slightly: start at 0; *IF* a packet, other than this one, is In-flight and then</span></div>
-<div class="line"><a id="l02225" name="l02225"></a><span class="lineno"> 2225</span><span class="comment">   * acknowledged, and that packet was sent out (or, equivalently, scheduled to be sent out -- packets do not</span></div>
-<div class="line"><a id="l02226" name="l02226"></a><span class="lineno"> 2226</span><span class="comment">   * change order once marked for sending -- a/k/a became In-flight) chronologically AFTER same happened to</span></div>
-<div class="line"><a id="l02227" name="l02227"></a><span class="lineno"> 2227</span><span class="comment">   * `*this` packet *THEN* add 1.  After adding up all such acks, the resulting value = this member.</span></div>
-<div class="line"><a id="l02228" name="l02228"></a><span class="lineno"> 2228</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02229" name="l02229"></a><span class="lineno"> 2229</span><span class="comment">   * This is used to determine when `*this` packet should be considered Dropped,</span></div>
-<div class="line"><a id="l02230" name="l02230"></a><span class="lineno"> 2230</span><span class="comment">   * as in TCP&#39;s Fast Retransmit heuristic (but better, since time-when-sent -- not sequence number, which has</span></div>
-<div class="line"><a id="l02231" name="l02231"></a><span class="lineno"> 2231</span><span class="comment">   * retransmission ambiguities -- is used to order packets).</span></div>
-<div class="line"><a id="l02232" name="l02232"></a><span class="lineno"> 2232</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02233" name="l02233"></a><span class="lineno"> 2233</span><span class="comment">   * Note, again, that &quot;after&quot; has little to do with *sequence* number but rather with send time, as ordered via</span></div>
-<div class="line"><a id="l02234" name="l02234"></a><span class="lineno"> 2234</span><span class="comment">   * the *order* number.  E.g., due to retransmission, `*this` may have sequence number greater than another</span></div>
-<div class="line"><a id="l02235" name="l02235"></a><span class="lineno"> 2235</span><span class="comment">   * packet yet have the lesser order number.  (This dichotomy is mentioned a lot, everywhere, and if I&#39;m overdoing</span></div>
-<div class="line"><a id="l02236" name="l02236"></a><span class="lineno"> 2236</span><span class="comment">   * it, it&#39;s only because sometimes TCP cumulative-ack habits die hard, so I have to keep reminding myself.)</span></div>
-<div class="line"><a id="l02237" name="l02237"></a><span class="lineno"> 2237</span><span class="comment">   * (If retransmission is disabled, however, then sequence number order = order number order.)</span></div>
-<div class="line"><a id="l02238" name="l02238"></a><span class="lineno"> 2238</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02239" name="l02239"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa"> 2239</a></span>  <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2">ack_count_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa">m_acks_after_me</a>;</div>
-<div class="line"><a id="l02240" name="l02240"></a><span class="lineno"> 2240</span><span class="comment"></span> </div>
-<div class="line"><a id="l02241" name="l02241"></a><span class="lineno"> 2241</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02242" name="l02242"></a><span class="lineno"> 2242</span><span class="comment">   * If retransmission is on, this is the DATA packet itself that was sent; otherwise null.  It is</span></div>
-<div class="line"><a id="l02243" name="l02243"></a><span class="lineno"> 2243</span><span class="comment">   * stored in case we need to retransmit it.  If we don&#39;t (it is acknowledged), the entire</span></div>
-<div class="line"><a id="l02244" name="l02244"></a><span class="lineno"> 2244</span><span class="comment">   * Sent_packet is erased and goes away, so #m_packet&#39;s ref-count decreases to zero, and it</span></div>
-<div class="line"><a id="l02245" name="l02245"></a><span class="lineno"> 2245</span><span class="comment">   * disappears.  If we do, all we need to do to retransmit it is increment its Data_packet::m_rexmit_id and</span></div>
-<div class="line"><a id="l02246" name="l02246"></a><span class="lineno"> 2246</span><span class="comment">   * place it into the retransmission queue for sending, when CWND space is available.</span></div>
-<div class="line"><a id="l02247" name="l02247"></a><span class="lineno"> 2247</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02248" name="l02248"></a><span class="lineno"> 2248</span><span class="comment">   * Why store the entire packet and not just its Data_packet::m_data?  There&#39;s a small bit of memory overhead, but</span></div>
-<div class="line"><a id="l02249" name="l02249"></a><span class="lineno"> 2249</span><span class="comment">   * we get Data_packet::m_rexmit_id for free and don&#39;t have to spend time re-creating the packet to retransmit.</span></div>
-<div class="line"><a id="l02250" name="l02250"></a><span class="lineno"> 2250</span><span class="comment">   * So it&#39;s just convenient.</span></div>
-<div class="line"><a id="l02251" name="l02251"></a><span class="lineno"> 2251</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02252" name="l02252"></a><span class="lineno"> 2252</span><span class="comment">   * If retransmission is off, there is no need to store this, as it will not be re-sent.</span></div>
-<div class="line"><a id="l02253" name="l02253"></a><span class="lineno"> 2253</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02254" name="l02254"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf"> 2254</a></span>  <span class="keyword">const</span> boost::shared_ptr&lt;Data_packet&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf">m_packet</a>;</div>
-<div class="line"><a id="l02255" name="l02255"></a><span class="lineno"> 2255</span> </div>
-<div class="line"><a id="l02256" name="l02256"></a><span class="lineno"> 2256</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l02257" name="l02257"></a><span class="lineno"> 2257</span><span class="comment"></span> </div>
-<div class="line"><a id="l02258" name="l02258"></a><span class="lineno"> 2258</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02259" name="l02259"></a><span class="lineno"> 2259</span><span class="comment">   * Constructs object with the given values and #m_acks_after_me at zero.  If rexmit-on option enabled, the</span></div>
-<div class="line"><a id="l02260" name="l02260"></a><span class="lineno"> 2260</span><span class="comment">   * packet is stored in #m_packet; otherwise #m_packet is initialized to null.  Regardless, #m_size</span></div>
-<div class="line"><a id="l02261" name="l02261"></a><span class="lineno"> 2261</span><span class="comment">   * is set to `packet.m_data.size()`.</span></div>
-<div class="line"><a id="l02262" name="l02262"></a><span class="lineno"> 2262</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02263" name="l02263"></a><span class="lineno"> 2263</span><span class="comment">   * @param rexmit_on</span></div>
-<div class="line"><a id="l02264" name="l02264"></a><span class="lineno"> 2264</span><span class="comment">   *        True if and only if `sock-&gt;rexmit_on()` for the containing socket.</span></div>
-<div class="line"><a id="l02265" name="l02265"></a><span class="lineno"> 2265</span><span class="comment">   * @param packet</span></div>
-<div class="line"><a id="l02266" name="l02266"></a><span class="lineno"> 2266</span><span class="comment">   *        The packet that will be sent.  Used for #m_size and, if `sock-&gt;rexmit_on()`, saved in #m_packet.</span></div>
-<div class="line"><a id="l02267" name="l02267"></a><span class="lineno"> 2267</span><span class="comment">   * @param sent_when</span></div>
-<div class="line"><a id="l02268" name="l02268"></a><span class="lineno"> 2268</span><span class="comment">   *        #m_sent_when is set to contain one element equalling this argument.</span></div>
-<div class="line"><a id="l02269" name="l02269"></a><span class="lineno"> 2269</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02270" name="l02270"></a><span class="lineno"> 2270</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a28eb52fe9520497d02f6c0cd51a5fa9b">Sent_packet</a>(<span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>, boost::shared_ptr&lt;Data_packet&gt; packet, <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Sent_when</a>&amp; sent_when);</div>
-<div class="line"><a id="l02271" name="l02271"></a><span class="lineno"> 2271</span>}; <span class="comment">// struct Peer_socket::Sent_packet</span></div>
-<div class="line"><a id="l02272" name="l02272"></a><span class="lineno"> 2272</span><span class="comment"></span> </div>
-<div class="line"><a id="l02273" name="l02273"></a><span class="lineno"> 2273</span><span class="comment">/**</span></div>
-<div class="line"><a id="l02274" name="l02274"></a><span class="lineno"> 2274</span><span class="comment"> * @private</span></div>
-<div class="line"><a id="l02275" name="l02275"></a><span class="lineno"> 2275</span><span class="comment"> *</span></div>
-<div class="line"><a id="l02276" name="l02276"></a><span class="lineno"> 2276</span><span class="comment"> * Data store to keep timing related info when a packet is sent out.  Construct via direct member initialization.</span></div>
-<div class="line"><a id="l02277" name="l02277"></a><span class="lineno"> 2277</span><span class="comment"> * It is copy-constructible (for initially copying into containers and such) but not assignable to discourage</span></div>
-<div class="line"><a id="l02278" name="l02278"></a><span class="lineno"> 2278</span><span class="comment"> * unneeded copying (though it is not a heavy structure).  Update: A later version of clang does not like</span></div>
-<div class="line"><a id="l02279" name="l02279"></a><span class="lineno"> 2279</span><span class="comment"> * this technique and warns about it; to avoid any such trouble just forget the non-assignability stuff;</span></div>
-<div class="line"><a id="l02280" name="l02280"></a><span class="lineno"> 2280</span><span class="comment"> * it&#39;s internal code; we should be fine.</span></div>
-<div class="line"><a id="l02281" name="l02281"></a><span class="lineno"> 2281</span><span class="comment"> */</span></div>
-<div class="line"><a id="l02282" name="l02282"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html"> 2282</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Peer_socket::Sent_packet::Sent_when</a></div>
-<div class="line"><a id="l02283" name="l02283"></a><span class="lineno"> 2283</span>{</div>
-<div class="line"><a id="l02284" name="l02284"></a><span class="lineno"> 2284</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l02285" name="l02285"></a><span class="lineno"> 2285</span><span class="comment"></span> </div>
-<div class="line"><a id="l02286" name="l02286"></a><span class="lineno"> 2286</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02287" name="l02287"></a><span class="lineno"> 2287</span><span class="comment">   * Order number of the packet.  This can be used to compare two packets sent out; the one with the</span></div>
-<div class="line"><a id="l02288" name="l02288"></a><span class="lineno"> 2288</span><span class="comment">   * higher order number was sent out later.  See Peer_socket::m_snd_last_order_num.  The per-socket next-value</span></div>
-<div class="line"><a id="l02289" name="l02289"></a><span class="lineno"> 2289</span><span class="comment">   * for this is incremented each time another packet is sent out.</span></div>
-<div class="line"><a id="l02290" name="l02290"></a><span class="lineno"> 2290</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02291" name="l02291"></a><span class="lineno"> 2291</span><span class="comment">   * @see Peer_socket::Sent_packet::m_sent_when for more discussion.</span></div>
-<div class="line"><a id="l02292" name="l02292"></a><span class="lineno"> 2292</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02293" name="l02293"></a><span class="lineno"> 2293</span><span class="comment">   * @internal</span></div>
-<div class="line"><a id="l02294" name="l02294"></a><span class="lineno"> 2294</span><span class="comment">   * @todo Can we make Sent_when::m_order_num and some of its peers const?</span></div>
-<div class="line"><a id="l02295" name="l02295"></a><span class="lineno"> 2295</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02296" name="l02296"></a><span class="lineno"> 2296</span>  <span class="comment">// That @internal should not be necessary to hide the @todo in public generated docs -- Doxygen bug?</span></div>
-<div class="line"><a id="l02297" name="l02297"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6"> 2297</a></span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">order_num_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">m_order_num</a>;</div>
-<div class="line"><a id="l02298" name="l02298"></a><span class="lineno"> 2298</span><span class="comment"></span> </div>
-<div class="line"><a id="l02299" name="l02299"></a><span class="lineno"> 2299</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02300" name="l02300"></a><span class="lineno"> 2300</span><span class="comment">   * The timestamp when the packet is sent out.  This may be &quot;corrected&quot; when actually sent *after* pacing delay</span></div>
-<div class="line"><a id="l02301" name="l02301"></a><span class="lineno"> 2301</span><span class="comment">   * (hence not `const`).</span></div>
-<div class="line"><a id="l02302" name="l02302"></a><span class="lineno"> 2302</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02303" name="l02303"></a><span class="lineno"> 2303</span><span class="comment">   * @see Fine_clock.  Recall that, due to latter&#39;s properties, `Fine_clock::now()` results monotonically increase</span></div>
-<div class="line"><a id="l02304" name="l02304"></a><span class="lineno"> 2304</span><span class="comment">   *      over time -- a property on which we rely on, particularly since this data member is only assigned</span></div>
-<div class="line"><a id="l02305" name="l02305"></a><span class="lineno"> 2305</span><span class="comment">   *      `Fine_clock::now()` at various times.</span></div>
-<div class="line"><a id="l02306" name="l02306"></a><span class="lineno"> 2306</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02307" name="l02307"></a><span class="lineno"> 2307</span><span class="comment">   * @see Peer_socket::Sent_packet::m_sent_when for more discussion.</span></div>
-<div class="line"><a id="l02308" name="l02308"></a><span class="lineno"> 2308</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02309" name="l02309"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#ad513e58f4eb611c3a91d96df26f53f2c"> 2309</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#ad513e58f4eb611c3a91d96df26f53f2c">m_sent_time</a>;</div>
-<div class="line"><a id="l02310" name="l02310"></a><span class="lineno"> 2310</span><span class="comment"></span> </div>
-<div class="line"><a id="l02311" name="l02311"></a><span class="lineno"> 2311</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02312" name="l02312"></a><span class="lineno"> 2312</span><span class="comment">   * The congestion window size (in bytes) that is used when the packet is sent out.</span></div>
-<div class="line"><a id="l02313" name="l02313"></a><span class="lineno"> 2313</span><span class="comment">   * We store this to pass to the congestion control module when this packet is acked in the future.</span></div>
-<div class="line"><a id="l02314" name="l02314"></a><span class="lineno"> 2314</span><span class="comment">   * Some congestion control algorithms compute CWND based on an earlier CWND value.</span></div>
-<div class="line"><a id="l02315" name="l02315"></a><span class="lineno"> 2315</span><span class="comment">   * Not `const` for similar reason as #m_sent_time.</span></div>
-<div class="line"><a id="l02316" name="l02316"></a><span class="lineno"> 2316</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02317" name="l02317"></a><span class="lineno"> 2317</span><span class="comment">   * @internal</span></div>
-<div class="line"><a id="l02318" name="l02318"></a><span class="lineno"> 2318</span><span class="comment">   * @todo Why is #m_sent_cwnd_bytes in Sent_when `struct` and not directly in `Sent_packet`?  Or maybe it should</span></div>
-<div class="line"><a id="l02319" name="l02319"></a><span class="lineno"> 2319</span><span class="comment">   * stay here, but Sent_when should be renamed `Send_attempt` (or `Send_try` for brevity)?  Yeah, I think that&#39;s</span></div>
-<div class="line"><a id="l02320" name="l02320"></a><span class="lineno"> 2320</span><span class="comment">   * it.  Then Sent_packet::m_sent_when -- a container of Sent_when objects -- would become `m_send_tries`, a</span></div>
-<div class="line"><a id="l02321" name="l02321"></a><span class="lineno"> 2321</span><span class="comment">   * container of `Send_try` objects.  That makes more sense (sentce?!) than the status quo which involves the</span></div>
-<div class="line"><a id="l02322" name="l02322"></a><span class="lineno"> 2322</span><span class="comment">   * singular-means-plural strangeness.</span></div>
-<div class="line"><a id="l02323" name="l02323"></a><span class="lineno"> 2323</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02324" name="l02324"></a><span class="lineno"> 2324</span><span class="comment">   * @todo Can we make #m_sent_cwnd_bytes and some of its peers `const`?</span></div>
-<div class="line"><a id="l02325" name="l02325"></a><span class="lineno"> 2325</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02326" name="l02326"></a><span class="lineno"> 2326</span>  <span class="comment">// That @internal should not be necessary to hide the @todo in public generated docs -- Doxygen bug?</span></div>
-<div class="line"><a id="l02327" name="l02327"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#abc5bf2e627dad5d2dcfb0324853b37f7"> 2327</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#abc5bf2e627dad5d2dcfb0324853b37f7">m_sent_cwnd_bytes</a>;</div>
-<div class="line"><a id="l02328" name="l02328"></a><span class="lineno"> 2328</span>}; <span class="comment">// struct Peer_socket::Sent_packet::Sent_when</span></div>
-<div class="line"><a id="l02329" name="l02329"></a><span class="lineno"> 2329</span><span class="comment"></span> </div>
-<div class="line"><a id="l02330" name="l02330"></a><span class="lineno"> 2330</span><span class="comment">/**</span></div>
-<div class="line"><a id="l02331" name="l02331"></a><span class="lineno"> 2331</span><span class="comment"> * @private</span></div>
-<div class="line"><a id="l02332" name="l02332"></a><span class="lineno"> 2332</span><span class="comment"> *</span></div>
-<div class="line"><a id="l02333" name="l02333"></a><span class="lineno"> 2333</span><span class="comment"> * Metadata (and data, if retransmission is on) for a packet that has been received (and, if</span></div>
-<div class="line"><a id="l02334" name="l02334"></a><span class="lineno"> 2334</span><span class="comment"> * retransmission is off, copied to Receive buffer).  This is purely a data store, not a class.</span></div>
-<div class="line"><a id="l02335" name="l02335"></a><span class="lineno"> 2335</span><span class="comment"> * It is not copyable, and moving them around by smart Received_packet::Ptr is encouraged.</span></div>
-<div class="line"><a id="l02336" name="l02336"></a><span class="lineno"> 2336</span><span class="comment"> */</span></div>
-<div class="line"><a id="l02337" name="l02337"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html"> 2337</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html">Peer_socket::Received_packet</a> :</div>
-<div class="line"><a id="l02338" name="l02338"></a><span class="lineno"> 2338</span>  <span class="comment">// Endow us with shared_ptr&lt;&gt;s ::Ptr and ::Const_ptr (syntactic sugar).</span></div>
-<div class="line"><a id="l02339" name="l02339"></a><span class="lineno"> 2339</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html">util::Shared_ptr_alias_holder</a>&lt;boost::shared_ptr&lt;Peer_socket::Received_packet&gt;&gt;,</div>
-<div class="line"><a id="l02340" name="l02340"></a><span class="lineno"> 2340</span>  <span class="keyword">private</span> boost::noncopyable</div>
-<div class="line"><a id="l02341" name="l02341"></a><span class="lineno"> 2341</span>{</div>
-<div class="line"><a id="l02342" name="l02342"></a><span class="lineno"> 2342</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l02343" name="l02343"></a><span class="lineno"> 2343</span><span class="comment"></span> </div>
-<div class="line"><a id="l02344" name="l02344"></a><span class="lineno"> 2344</span><span class="comment">  /// Number of bytes in the Data_packet::m_data field of that packet.</span></div>
-<div class="line"><a id="l02345" name="l02345"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#a7d0760b1dead081bdcf775fbca7f708b"> 2345</a></span><span class="comment"></span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#a7d0760b1dead081bdcf775fbca7f708b">m_size</a>;</div>
-<div class="line"><a id="l02346" name="l02346"></a><span class="lineno"> 2346</span><span class="comment"></span> </div>
-<div class="line"><a id="l02347" name="l02347"></a><span class="lineno"> 2347</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02348" name="l02348"></a><span class="lineno"> 2348</span><span class="comment">   * Byte sequence equal to that of Data_packet::m_data of the packet.  Kept `empty()` if retransmission is off,</span></div>
-<div class="line"><a id="l02349" name="l02349"></a><span class="lineno"> 2349</span><span class="comment">   * since in that mode any received packet&#39;s `m_data` is immediately moved to Receive buffer.  With</span></div>
-<div class="line"><a id="l02350" name="l02350"></a><span class="lineno"> 2350</span><span class="comment">   * retransmission on, it is stored until all gaps before the packet are filled (a/k/a</span></div>
-<div class="line"><a id="l02351" name="l02351"></a><span class="lineno"> 2351</span><span class="comment">   * reassembly).</span></div>
-<div class="line"><a id="l02352" name="l02352"></a><span class="lineno"> 2352</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02353" name="l02353"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#ac3e88e37e53d2572f89c599e520e3e2a"> 2353</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#ac3e88e37e53d2572f89c599e520e3e2a">m_data</a>;</div>
-<div class="line"><a id="l02354" name="l02354"></a><span class="lineno"> 2354</span> </div>
-<div class="line"><a id="l02355" name="l02355"></a><span class="lineno"> 2355</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l02356" name="l02356"></a><span class="lineno"> 2356</span><span class="comment"></span> </div>
-<div class="line"><a id="l02357" name="l02357"></a><span class="lineno"> 2357</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02358" name="l02358"></a><span class="lineno"> 2358</span><span class="comment">   * Constructs object by storing size of data and, if so instructed, the data themselves.</span></div>
-<div class="line"><a id="l02359" name="l02359"></a><span class="lineno"> 2359</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02360" name="l02360"></a><span class="lineno"> 2360</span><span class="comment">   * @param logger_ptr</span></div>
-<div class="line"><a id="l02361" name="l02361"></a><span class="lineno"> 2361</span><span class="comment">   *        The Logger implementation to use subsequently.</span></div>
-<div class="line"><a id="l02362" name="l02362"></a><span class="lineno"> 2362</span><span class="comment">   * @param size</span></div>
-<div class="line"><a id="l02363" name="l02363"></a><span class="lineno"> 2363</span><span class="comment">   *        #m_size.</span></div>
-<div class="line"><a id="l02364" name="l02364"></a><span class="lineno"> 2364</span><span class="comment">   * @param src_data</span></div>
-<div class="line"><a id="l02365" name="l02365"></a><span class="lineno"> 2365</span><span class="comment">   *        Pointer to the packet data to be moved into #m_data; or null if we shouldn&#39;t store it.</span></div>
-<div class="line"><a id="l02366" name="l02366"></a><span class="lineno"> 2366</span><span class="comment">   *        This should be null if and only if retransmission is off.  If not null, for</span></div>
-<div class="line"><a id="l02367" name="l02367"></a><span class="lineno"> 2367</span><span class="comment">   *        performance, `*src_data` is CLEARED by this constructor (its data moved, in constant</span></div>
-<div class="line"><a id="l02368" name="l02368"></a><span class="lineno"> 2368</span><span class="comment">   *        time, into #m_data).  In that case, `src_data.size() == size` must be true at entrance to</span></div>
-<div class="line"><a id="l02369" name="l02369"></a><span class="lineno"> 2369</span><span class="comment">   *        constructor, or behavior is undefined.</span></div>
-<div class="line"><a id="l02370" name="l02370"></a><span class="lineno"> 2370</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02371" name="l02371"></a><span class="lineno"> 2371</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#a9f0809d5dd7272e31f4111ee2be97330">Received_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr, <span class="keywordtype">size_t</span> size, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* src_data);</div>
-<div class="line"><a id="l02372" name="l02372"></a><span class="lineno"> 2372</span>};</div>
-<div class="line"><a id="l02373" name="l02373"></a><span class="lineno"> 2373</span><span class="comment"></span> </div>
-<div class="line"><a id="l02374" name="l02374"></a><span class="lineno"> 2374</span><span class="comment">/**</span></div>
-<div class="line"><a id="l02375" name="l02375"></a><span class="lineno"> 2375</span><span class="comment"> * @private</span></div>
-<div class="line"><a id="l02376" name="l02376"></a><span class="lineno"> 2376</span><span class="comment"> *</span></div>
-<div class="line"><a id="l02377" name="l02377"></a><span class="lineno"> 2377</span><span class="comment"> * Metadata describing the data sent in the acknowledgment of an individual received packet.  (A</span></div>
-<div class="line"><a id="l02378" name="l02378"></a><span class="lineno"> 2378</span><span class="comment"> * low-level ACK packet may include several sets of such data.)  This is purely a data store, not</span></div>
-<div class="line"><a id="l02379" name="l02379"></a><span class="lineno"> 2379</span><span class="comment"> * a class.  It is not copyable, and moving them around by smart Individual_ack::Ptr is encouraged.</span></div>
-<div class="line"><a id="l02380" name="l02380"></a><span class="lineno"> 2380</span><span class="comment"> * Construct this by direct member initialization.</span></div>
-<div class="line"><a id="l02381" name="l02381"></a><span class="lineno"> 2381</span><span class="comment"> */</span></div>
-<div class="line"><a id="l02382" name="l02382"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html"> 2382</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">Peer_socket::Individual_ack</a></div>
-<div class="line"><a id="l02383" name="l02383"></a><span class="lineno"> 2383</span>  <span class="comment">// Cannot use boost::noncopyable or Shared_ptr_alias_holder, because that turns off direct initialization.</span></div>
-<div class="line"><a id="l02384" name="l02384"></a><span class="lineno"> 2384</span>{</div>
-<div class="line"><a id="l02385" name="l02385"></a><span class="lineno"> 2385</span>  <span class="comment">// Types.</span></div>
-<div class="line"><a id="l02386" name="l02386"></a><span class="lineno"> 2386</span><span class="comment"></span> </div>
-<div class="line"><a id="l02387" name="l02387"></a><span class="lineno"> 2387</span><span class="comment">  /// Short-hand for ref-counted pointer to mutable objects of this class.</span></div>
-<div class="line"><a id="l02388" name="l02388"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3"> 2388</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3">Ptr</a> = boost::shared_ptr&lt;Individual_ack&gt;;</div>
-<div class="line"><a id="l02389" name="l02389"></a><span class="lineno"> 2389</span><span class="comment"></span> </div>
-<div class="line"><a id="l02390" name="l02390"></a><span class="lineno"> 2390</span><span class="comment">  /// Short-hand for ref-counted pointer to immutable objects of this class.</span></div>
-<div class="line"><a id="l02391" name="l02391"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b"> 2391</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">Const_ptr</a> = boost::shared_ptr&lt;const Individual_ack&gt;;</div>
-<div class="line"><a id="l02392" name="l02392"></a><span class="lineno"> 2392</span> </div>
-<div class="line"><a id="l02393" name="l02393"></a><span class="lineno"> 2393</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l02394" name="l02394"></a><span class="lineno"> 2394</span><span class="comment"></span> </div>
-<div class="line"><a id="l02395" name="l02395"></a><span class="lineno"> 2395</span><span class="comment">  /// Sequence number of first datum in packet.</span></div>
-<div class="line"><a id="l02396" name="l02396"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a8a237605b83d8a0d1b175395a83ad768"> 2396</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a8a237605b83d8a0d1b175395a83ad768">m_seq_num</a>;</div>
-<div class="line"><a id="l02397" name="l02397"></a><span class="lineno"> 2397</span><span class="comment"></span> </div>
-<div class="line"><a id="l02398" name="l02398"></a><span class="lineno"> 2398</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l02399" name="l02399"></a><span class="lineno"> 2399</span><span class="comment">   * Retransmit counter of the packet (as reported by sender).  Identifies which attempt we are</span></div>
-<div class="line"><a id="l02400" name="l02400"></a><span class="lineno"> 2400</span><span class="comment">   * acknowledging (0 = initial, 1 = first retransmit, 2 = second retransmit, ...).  Always 0</span></div>
-<div class="line"><a id="l02401" name="l02401"></a><span class="lineno"> 2401</span><span class="comment">   * unless retransmission is on.</span></div>
-<div class="line"><a id="l02402" name="l02402"></a><span class="lineno"> 2402</span><span class="comment">   */</span></div>
-<div class="line"><a id="l02403" name="l02403"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a29080d01ac5bc0d51ad407587c6721ab"> 2403</a></span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a29080d01ac5bc0d51ad407587c6721ab">m_rexmit_id</a>;</div>
-<div class="line"><a id="l02404" name="l02404"></a><span class="lineno"> 2404</span><span class="comment"></span> </div>
-<div class="line"><a id="l02405" name="l02405"></a><span class="lineno"> 2405</span><span class="comment">  /// When was it received?  Used for supplying delay before acknowledging (for other side&#39;s RTT calculations).</span></div>
-<div class="line"><a id="l02406" name="l02406"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad6e1407a2a3fc95e568b00f31e423b25"> 2406</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad6e1407a2a3fc95e568b00f31e423b25">m_received_when</a>;</div>
-<div class="line"><a id="l02407" name="l02407"></a><span class="lineno"> 2407</span><span class="comment"></span> </div>
-<div class="line"><a id="l02408" name="l02408"></a><span class="lineno"> 2408</span><span class="comment">  /// Number of bytes in the packet&#39;s user data.</span></div>
-<div class="line"><a id="l02409" name="l02409"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a0af3081c75e1c552807ecc7af416efba"> 2409</a></span><span class="comment"></span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a0af3081c75e1c552807ecc7af416efba">m_data_size</a>;</div>
-<div class="line"><a id="l02410" name="l02410"></a><span class="lineno"> 2410</span> </div>
-<div class="line"><a id="l02411" name="l02411"></a><span class="lineno"> 2411</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l02412" name="l02412"></a><span class="lineno"> 2412</span><span class="comment"></span> </div>
-<div class="line"><a id="l02413" name="l02413"></a><span class="lineno"> 2413</span><span class="comment">  /// Force direct member initialization even if no member is `const`.</span></div>
-<div class="line"><a id="l02414" name="l02414"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ac31bcdf4026275cb6fa90947a68d562a"> 2414</a></span><span class="comment"></span>  <a class="code hl_function" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ac31bcdf4026275cb6fa90947a68d562a">Individual_ack</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">Individual_ack</a>&amp;) = <span class="keyword">delete</span>;</div>
-<div class="line"><a id="l02415" name="l02415"></a><span class="lineno"> 2415</span> </div>
-<div class="line"><a id="l02416" name="l02416"></a><span class="lineno"> 2416</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l02417" name="l02417"></a><span class="lineno"> 2417</span><span class="comment"></span> </div>
-<div class="line"><a id="l02418" name="l02418"></a><span class="lineno"> 2418</span><span class="comment">  /// Forbid copy assignment.</span></div>
-<div class="line"><a id="l02419" name="l02419"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad261f9c8073e31fe328734c97a9d384b"> 2419</a></span><span class="comment"></span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">Individual_ack</a>&amp; <a class="code hl_function" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad261f9c8073e31fe328734c97a9d384b">operator=</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">Individual_ack</a>&amp;) = <span class="keyword">delete</span>;</div>
-<div class="line"><a id="l02420" name="l02420"></a><span class="lineno"> 2420</span>}; <span class="comment">// struct Peer_socket::Individual_ack</span></div>
-<div class="line"><a id="l02421" name="l02421"></a><span class="lineno"> 2421</span> </div>
-<div class="line"><a id="l02422" name="l02422"></a><span class="lineno"> 2422</span><span class="comment">// Free functions: in *_fwd.hpp.</span></div>
-<div class="line"><a id="l02423" name="l02423"></a><span class="lineno"> 2423</span> </div>
-<div class="line"><a id="l02424" name="l02424"></a><span class="lineno"> 2424</span><span class="comment">// However the following refer to inner type(s) and hence must be declared here and not _fwd.hpp.</span></div>
-<div class="line"><a id="l02425" name="l02425"></a><span class="lineno"> 2425</span><span class="comment"></span> </div>
-<div class="line"><a id="l02426" name="l02426"></a><span class="lineno"> 2426</span><span class="comment">/**</span></div>
-<div class="line"><a id="l02427" name="l02427"></a><span class="lineno"> 2427</span><span class="comment"> * @internal</span></div>
+<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="preprocessor">#include &lt;type_traits&gt;</span></div>
+<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span> </div>
+<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div>
+<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span>{</div>
+<div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span><span class="comment">// Types.</span></div>
+<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="comment"></span> </div>
+<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span><span class="comment"> * A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes and</span></div>
+<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="comment"> * reliability support.</span></div>
+<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span><span class="comment"> * Reliability is enabled or disabled via a socket option, Peer_socket_options::m_st_rexmit_on,</span></div>
+<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="comment"> * at socket creation.  Use unreliable mode with care -- see send() method doc header for details.</span></div>
+<div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="comment"> * ### Life cycle of a Peer_socket ###</span></div>
+<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="comment"> * A given Peer_socket can arise either by connecting to</span></div>
+<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span><span class="comment"> * Server_socket on a Node (Node::connect() or Node::sync_connect()), or by listening on a</span></div>
+<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span><span class="comment"> * Node&#39;s Server_socket and accepting such a connection (Server_socket::accept() or</span></div>
+<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="comment"> * Server_socket::sync_accept()).  In all cases, Node or Server_socket generates a new Peer_socket</span></div>
+<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span><span class="comment"> * and returns it (factory pattern).  Peer_socket is not instantiable otherwise.  A Peer_socket</span></div>
+<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span><span class="comment"> * cannot be deleted explicitly by the user and will only be returned via `boost::shared_ptr&lt;&gt;`; when</span></div>
+<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="comment"> * both the Node and all user code no longer refers to it, the Peer_socket will be destroyed.</span></div>
+<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span><span class="comment"> * Once a `net_flow` user has a Peer_socket object, that object represents a socket in one of the</span></div>
+<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span><span class="comment"> * following basic states:</span></div>
+<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span><span class="comment"> *   - Open.</span></div>
+<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span><span class="comment"> *     - Sub-states:</span></div>
+<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span><span class="comment"> *       - Connecting.  (Never Writable, never Readable.)</span></div>
+<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span><span class="comment"> *       - Connected.  (May be Writable, may be Readable.)</span></div>
+<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span><span class="comment"> *       - Disconnecting.  (May be Readable, never Writable.)</span></div>
+<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="comment"> *   - Closed.</span></div>
+<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span><span class="comment"> *     - Socket can neither read nor write.</span></div>
+<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span><span class="comment"> * Open.Connecting means means Node initiated a connect to the given server, and this is in</span></div>
+<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span><span class="comment"> * progress. Open.Connected means the connection to the other Node is fully functional.</span></div>
+<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="comment"> * Open.Disconnecting means either our side or the other side has initiated a clean or abrupt</span></div>
+<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="comment"> * disconnect, but it is not yet entirely finished (background handshaking is happening, you have</span></div>
+<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="comment"> * not read all available data or sent all queued data, etc.).</span></div>
+<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span><span class="comment"> * In either case, reading and writing may or may not be possible at a given time, depending on the</span></div>
+<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="comment"> * state of the internal buffers and the data having arrived on the logical connection.  Thus all</span></div>
+<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><span class="comment"> * Open sub-states can and often should be treated the same way in a typical Flow-protocol-using algorithm:</span></div>
+<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="comment"> * simply determine when the Peer_socket is Readable, and read; and similarly for Writable and</span></div>
+<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="comment"> * write.  Thus the sub-states are distinguished for informational/diagnostic purposes only, as user</span></div>
+<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="comment"> * reading/writing logic in these states should usually be identical.</span></div>
+<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span><span class="comment"> * @todo Closing connection considerations.  May implement closing only via timeouts at first (as</span></div>
+<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="comment"> * opposed to explicit closing).  Below text refers to `close_final()` and `close_start()`, but those</span></div>
+<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="comment"> * are just ideas and may be replaced with timeout, or nothing.  At this time, the only closing</span></div>
+<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment"> * supported is abrupt close due to error or abrupt close via close_abruptly().</span></div>
+<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment"> * Closed means that the Peer_socket has become disconnected, and no data can possibly be</span></div>
+<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="comment"> * received or sent, AND that Node has no more background internal operations to perform and has</span></div>
+<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="comment"> * disowned the Peer_socket.  In other words, a Closed Peer_socket is entirely dead.</span></div>
+<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span><span class="comment"> * Exactly the following state transitions are possible for a given Peer_socket returned by Node:</span></div>
+<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment"> *    - start =&gt; Closed</span></div>
+<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="comment"> *    - start =&gt; Open</span></div>
+<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="comment"> *    - Open =&gt; Closed</span></div>
+<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="comment"> * Note, in particular, that Closed is final; socket cannot move from Closed to</span></div>
+<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment"> * Open.  If after an error or valid disconnection you want to reestablish a</span></div>
+<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="comment"> * connection, obtain a new Peer_socket from Node&#39;s factories.  Rationale (subject to change):</span></div>
+<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span><span class="comment"> * this cuts down on state having to be tracked inside a Peer_socket, while the interface becomes</span></div>
+<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="comment"> * simpler without much impact on usability.  Anti-rationale: contradicts BSD socket and boost.asio</span></div>
+<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="comment"> * established practices; potentially more resource-intensive/slower in the event of errors and</span></div>
+<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="comment"> * disconnects.  Why IMO rationale &gt; anti-rationale: it&#39;s simpler, and the potential problems do not</span></div>
+<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="comment"> * appear immediately serious; added statefulness can be added later if found desirable.</span></div>
+<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment"> * Receving, sending, and buffers: Peer_socket, like a TCP socket, has a Receive buffer (a/k/a</span></div>
+<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="comment"> * FIFO queue of bytes) of some maximum size and a Send buffer (a/k/a FIFO queue of bytes) of some</span></div>
+<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="comment"> * maximum size. They are typically not directly exposed via the interface, but their existence</span></div>
+<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment"> * affects documented behavior.  I formally describe them here, but generally they work similarly to</span></div>
+<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment"> * TCP socket Send/Receive buffers.</span></div>
+<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment"> * The Receive buffer: Contains bytes asynchronously received on the connection that have not yet</span></div>
+<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment"> * been removed with a `*receive()` method.  Any bytes that asynchronously arrive on the connection are</span></div>
+<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment"> * asynchronously stored to the buffer on the other side of the buffer in a queued fashion.</span></div>
+<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment"> * The Send buffer: Contains bytes intended to be asynchronously sent on the connection that have</span></div>
+<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment"> * been placed there by a `*send()` method but not yet sent on the connection.  Any bytes that are</span></div>
+<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment"> * asynchronously sent on the connection are asynchronously removed from the buffer on the other</span></div>
+<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span><span class="comment"> * side of the buffer in a queued fashion.</span></div>
+<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment"> * With that in mind, here are the definitions of Readable and Writable while state is Open:</span></div>
+<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="comment"> *   - Readable &lt;=&gt; Data available in internal Receive buffer, and user has not explicitly announced</span></div>
+<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment"> *                  via `close_final()` they&#39;re not interested in reading further.</span></div>
+<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment"> *   - Writable &lt;=&gt; Space for data available in internal Send buffer, and the state is Open.Connected.</span></div>
+<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment"> * Note that neither definition really cares about the state of the network connection (e.g., could</span></div>
+<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment"> * bytes actually be sent over the network at the moment?).  There is one caveat: A</span></div>
+<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment"> * socket is not Writable until Open.Connecting state is transitioned away from; this prevents user</span></div>
+<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment"> * from buffering up send data before the connection is ready.  (Allowing that would not necessarily</span></div>
+<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="comment"> * be wrong, but I&#39;m taking a cue from BSD socket semantics on this, as they seem to be convenient.)</span></div>
+<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment"> * In Open, the following archetypal operations are provided.  (In Closed all</span></div>
+<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment"> * immediately fail; in Open.Disconnecting some immediately fail if `close*()` has been called.)  Let</span></div>
+<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="comment"> * R be the current size of data in the Receive buffer, and S be the available space for data in the</span></div>
+<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment"> * Send buffer.</span></div>
+<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="comment"> *   - `receive(N)`.  If Readable, return to caller `min(N, R)` oldest data to have been received from</span></div>
+<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span><span class="comment"> *     the other side, and remove them from Receive buffer.  Otherwise do nothing.</span></div>
+<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="comment"> *   - `send(N)`.  If Writable, take from caller `min(N, S)` data to be appended to the Send</span></div>
+<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="comment"> *     buffer and, when possible, sent to the other side.  Otherwise do nothing.</span></div>
+<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="comment"> *   - `sync_receive(N)`.  If Readable, `receive(N)`.  Otherwise sleep until Readable, then `receive(N)`.</span></div>
+<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="comment"> *   - `sync_send(N)`.  If Writable, `send(N)`.  Otherwise sleep until Writable, then `send(N)`.</span></div>
+<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="comment"> * These are similar to TCP Receive and Send APIs in non-blocking mode, and TCP Receive and Send APIs in</span></div>
+<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span><span class="comment"> * blocking mode, respectively.  There may be other similarly themed methods, but all use these as</span></div>
+<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span><span class="comment"> * semantic building blocks.</span></div>
+<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span><span class="comment"> * To understand the order of events, one can think of a disconnect-causing event (like a graceful</span></div>
+<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span><span class="comment"> * close initiation from the remote socket) as a piece of data itself.  Thus, for example, if 5</span></div>
+<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment"> * bytes are received and placed into the Receive buffer without being read by the user, and then a</span></div>
+<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment"> * connection close is detected, the socket will be Readable until the 5 bytes have been</span></div>
+<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="comment"> * receive()ed, and the next receive() (or send()) would yield the error, since that&#39;s the order</span></div>
+<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span><span class="comment"> * things happened.  Similarly, suppose you&#39;ve sent 5 bytes, but they haven&#39;t been yet</span></div>
+<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="comment"> * sent over the wire and are sitting in the Send buffer.  Then you trigger a graceful connection close.</span></div>
+<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span><span class="comment"> * First the 5 bytes will be sent if possible, and then the closing procedure will actually begin.</span></div>
+<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span><span class="comment"> * Abrupt closes such as connection resets may force both buffers to be immediately emptied without</span></div>
+<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment"> * giving to the user or writing to the other side, so that the above rule does not have to apply.</span></div>
+<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="comment"> * Typically a connection reset means the socket is immediately unusable no matter what was in the</span></div>
+<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span><span class="comment"> * buffers at the time, per BSD socket semantics.</span></div>
+<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span><span class="comment"> * ### Efficiently reading/writing ###</span></div>
+<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span><span class="comment"> * The `sync_*`() methods are efficient, in that they use no processor</span></div>
+<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span><span class="comment"> * cycles until Readable or Writable is achieved (i.e., they sleep until that point).  The</span></div>
+<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span><span class="comment"> * non-blocking versions don&#39;t sleep/block, however.  For a program using them to be efficient it</span></div>
+<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span><span class="comment"> * should sleep until Readable or Writable and only then call receive()/send(), when data are</span></div>
+<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span><span class="comment"> * certainly available for immediate reading or writing.  Moreover, a complex program is likely to</span></div>
+<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span><span class="comment"> * want to perform this sleep-and-conditional-wake on a set of several Peer_socket objects simultaneously</span></div>
+<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span><span class="comment"> * (similarly to `select()`, `epoll*()`, etc.).  Use class Event_set for this purpose.</span></div>
+<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span><span class="comment"> * ### Thread safety ###</span></div>
+<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span><span class="comment"> * Same as for Node.  (Briefly: all operations safe for simultaneous execution on</span></div>
+<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span><span class="comment"> * separate or the same object.)</span></div>
+<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span><span class="comment"> * @internal</span></div>
+<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span><span class="comment"> * Implementation notes</span></div>
+<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span><span class="comment"> * --------------------</span></div>
+<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span><span class="comment"> * While to a user a Peer_socket appears as a nearly self-sufficient object (i.e., you can do things</span></div>
+<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span><span class="comment"> * like `s-&gt;send()`, which means &#39;socket `s`, send some data!&#39;&#39;), the most reasonable way to internally</span></div>
+<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span><span class="comment"> * implement this is to have Node contain the logic behind a Peer_socket (and how it works together</span></div>
+<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span><span class="comment"> * with other Peer_socket objects and other internal infrastructure).  Thus Node is the class with all of</span></div>
+<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span><span class="comment"> * the logic behind (for example) `s-&gt;send()`.  Peer_socket then, privately, is not too much more than a</span></div>
+<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span><span class="comment"> * collection of data (like a `struct` almost) to help Node.</span></div>
+<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="comment"> * Therefore Peer_socket provides a clean object-oriented public interface to the user but, on the</span></div>
+<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span><span class="comment"> * implementation side, is basically a data store (with Node as `friend`) and forwards the logic to</span></div>
+<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment"> * the originating Node.  One idea to make this dichotomy more cleanly expressed (e.g., without</span></div>
+<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment"> * `friend`) was to make Peer_socket a pure interface and have Node produce `Peer_socket_impl`</span></div>
+<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span><span class="comment"> * objects, where `Peer_socket_impl` implements Peer_socket and is itself private to the user (a</span></div>
+<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment"> * classic factory pattern).  Unfortunately defining function templates such as `send&lt;Buffers&gt;()`</span></div>
+<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment"> * (where `Buffers` is an arbitrary `Buffers` concept model) as pure `virtual` functions is not really</span></div>
+<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span><span class="comment"> * possible in C++.  Since such a templated interface can be highly convenient (see boost.asio with</span></div>
+<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="comment"> * its seamless support for buffers and buffer sequences of most types, including scatter-gather),</span></div>
+<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span><span class="comment"> * the usefulness of the interface trumps implementation beauty.</span></div>
+<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span><span class="comment"> * To prevent node.cpp from being unmanageably large (and also because it makes sense),</span></div>
+<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span><span class="comment"> * implementations for Node methods that deal only with an individual Peer_socket reside in</span></div>
+<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span><span class="comment"> * peer_socket.cpp (even though they are members of Node, since, again, the logic is all forwarded to Node).</span></div>
+<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span><span class="comment"> * @todo Rename `State` and `Open_sub_state` to `Phase` and `Open_sub_phase` respectively; and</span></div>
+<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span><span class="comment"> * `Int_state` to `State`.  Explain difference between phases (application-layer, user-visible and used</span></div>
+<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span><span class="comment"> * close to application layer) and states (transport layer, internal).</span></div>
+<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span><span class="comment"> * @todo Look into a way to defeat the need for boiler-plate trickery -- with low but non-zero perf cost --</span></div>
+<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span><span class="comment"> * involving `*_socket`-vs-`Node` circular references in method templates, such as the way</span></div>
+<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span><span class="comment"> * Peer_socket::send() and Peer_socket::receive() internally make `Function&lt;&gt;`s before forwarding to the core</span></div>
+<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span><span class="comment"> * in Node.  Can this be done with `.inl` files?  Look into how Boost internally uses `.inl` files; this could</span></div>
+<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span><span class="comment"> * inspire a solution... or not.</span></div>
+<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html">  216</a></span><span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket.html">Peer_socket</a> :</div>
+<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1util_1_1Null__interface.html">util::Null_interface</a>,</div>
+<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span>  <span class="comment">// Endow us with shared_ptr&lt;&gt;s ::Ptr and ::Const_ptr (syntactic sugar).</span></div>
+<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html">util::Shared_ptr_alias_holder</a>&lt;boost::shared_ptr&lt;Peer_socket&gt;&gt;,</div>
+<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span>  <span class="comment">// Allow access to Ptr(this) from inside Peer_socket methods.  Just call shared_from_this().</span></div>
+<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span>  <span class="keyword">public</span> boost::enable_shared_from_this&lt;Peer_socket&gt;,</div>
+<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1log_1_1Log__context.html">log::Log_context</a>,</div>
+<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span>  <span class="keyword">private</span> boost::noncopyable</div>
+<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span>{</div>
+<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span><span class="keyword">public</span>:</div>
+<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span>  <span class="comment">// Types.</span></div>
+<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span><span class="comment"></span> </div>
+<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span><span class="comment">  /// State of a Peer_socket.</span></div>
+<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">  229</a></span><span class="comment"></span>  <span class="keyword">enum class</span> <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">State</a></div>
+<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span>  {<span class="comment"></span></div>
+<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span><span class="comment">    /// Future reads or writes may be possible.  A socket in this state may be Writable or Readable.</span></div>
+<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span><span class="comment"></span>    S_OPEN,<span class="comment"></span></div>
+<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span><span class="comment">    /// Neither future reads nor writes are possible, AND Node has disowned the Peer_socket.</span></div>
+<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span><span class="comment"></span>    S_CLOSED</div>
+<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span>  };</div>
+<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span><span class="comment"></span> </div>
+<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span><span class="comment">  /// The sub-state of a Peer_socket when state is State::S_OPEN.</span></div>
+<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">  238</a></span><span class="comment"></span>  <span class="keyword">enum class</span> <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">Open_sub_state</a></div>
+<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span>  {<span class="comment"></span></div>
+<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span><span class="comment">    /**</span></div>
+<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span><span class="comment">     * This Peer_socket was created through an active connect (Node::connect() and the like), and</span></div>
+<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="comment">     * the connection to the remote Node is currently being negotiated by this socket&#39;s Node.</span></div>
+<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span><span class="comment">     * A socket in this state may be Writable but cannot be Readable.  However, except for</span></div>
+<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="comment">     * diagnostic purposes, this state should generally be treated the same as S_CONNECTED.</span></div>
+<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span><span class="comment">     */</span></div>
+<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span>    S_CONNECTING,</div>
+<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span><span class="comment"></span> </div>
+<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span><span class="comment">    /**</span></div>
+<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span><span class="comment">     * This Peer_socket was created through a passive connect (Node::accept() and the like) or an</span></div>
+<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span><span class="comment">     * active connect (Node::connect() and the like), and the connection is (as far this socket&#39;s</span></div>
+<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span><span class="comment">     * Node knows) set up and functioning.  A socket in this state may be Writable or Readable.</span></div>
+<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span><span class="comment">     */</span></div>
+<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span>    S_CONNECTED,</div>
+<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span><span class="comment"></span> </div>
+<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span><span class="comment">    /**</span></div>
+<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span><span class="comment">     * This Peer_socket was created through a passive connect (Node::accept() and the like) or an</span></div>
+<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><span class="comment">     * active connect (Node::connect() and the like), but since then either an active close,</span></div>
+<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span><span class="comment">     * passive close, or an error has begun to close the connection, but data may still possibly</span></div>
+<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span><span class="comment">     * arrive and be Readable; also data may have been &quot;sent&quot; but still sitting in the Send buffer</span></div>
+<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span><span class="comment">     * and needs to be sent over the network.  A socket in this state may be Readable but cannot</span></div>
+<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span><span class="comment">     * be Writable.</span></div>
+<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span><span class="comment">     *</span></div>
+<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span><span class="comment">     * This implies that a non-S_CLOSED socket may be, at a lower level, disconnected.  For</span></div>
+<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span><span class="comment">     * example, say there are 5 bytes in the Receive buffer, and the other side sends a graceful</span></div>
+<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span><span class="comment">     * disconnect packet to this socket.  This means the connection is finished, but the user can</span></div>
+<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span><span class="comment">     * still receive() the 5 bytes (without blocking).  Then state will remain</span></div>
+<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span><span class="comment">     * S_OPEN.S_DISCONNECTING until the last of the 5 bytes is received (gone from the buffer); at</span></div>
+<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span><span class="comment">     * this point state may change to S_CLOSED (pending any other work Node must do to be able to</span></div>
+<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span><span class="comment">     * disown the socket).</span></div>
+<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span><span class="comment">     */</span></div>
+<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span>    S_DISCONNECTING</div>
+<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span>  }; <span class="comment">// enum class Open_sub_state</span></div>
+<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span> </div>
+<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span><span class="comment"></span> </div>
+<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span><span class="comment">  /// Boring `virtual` destructor.  Note that deletion is to be handled exclusively via `shared_ptr`, never explicitly.</span></div>
+<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span><span class="comment"></span>  <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a729af2cb3465b67b811d8e9438b5af5d">~Peer_socket</a>() <span class="keyword">override</span>;</div>
+<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span> </div>
+<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span><span class="comment"></span> </div>
+<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span><span class="comment">   * Current State of the socket.</span></div>
+<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span><span class="comment">   * @param open_sub_state</span></div>
+<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span><span class="comment">   *        Ignored if null.  Otherwise, if and only if State::S_OPEN is returned, `*open_sub_state` is set to</span></div>
+<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span><span class="comment">   *        the current sub-state of `S_OPEN`.</span></div>
+<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span><span class="comment">   * @return Current main state of the socket.</span></div>
+<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span>  <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">State</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#af982953b5136c1df488066eacc293a78">state</a>(<a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">Open_sub_state</a>* open_sub_state = 0) <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span><span class="comment"></span> </div>
+<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span><span class="comment">   * Node that produced this Peer_socket.</span></div>
+<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span><span class="comment">   * @return Pointer to (guaranteed valid) Node; null if state is State::S_CLOSED.</span></div>
+<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Node.html">Node</a>* <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#aa9e7e1be830c901bc7348742e79ba2e7">node</a>() <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span><span class="comment"></span> </div>
+<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span><span class="comment">   * Intended other side of the connection (regardless of success, failure, or current State).</span></div>
+<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span><span class="comment">   * For a given Peer_socket, this will always return the same value, even if state is</span></div>
+<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span><span class="comment">   * State::S_CLOSED.</span></div>
+<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span><span class="comment">   * @return See above.</span></div>
+<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span>  <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a>&amp; <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a5e423a9fd18a45cc7cc5fc34af29161e">remote_endpoint</a>() <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span><span class="comment"></span> </div>
+<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span><span class="comment">   * The local Flow-protocol port chosen by the Node (if active or passive open) or user (if passive open) for</span></div>
+<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span><span class="comment">   * this side of the connection.  For a given Peer_socket, this will always return the same value,</span></div>
+<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span><span class="comment">   * even if state is State::S_CLOSED.  However, when state is State::S_CLOSED, the port may be unused or</span></div>
+<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span><span class="comment">   * taken by another socket.</span></div>
+<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span><span class="comment">   * @return See above.</span></div>
+<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span>  <a class="code hl_typedef" href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow_port_t</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a7af387476aa0bdc6b3906c153d824acb">local_port</a>() <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span><span class="comment"></span> </div>
+<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span><span class="comment">   * Obtains the serialized connect metadata, as supplied by the user during the connection handshake.</span></div>
+<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span><span class="comment">   * If this side initiated the connection (Node::connect() and friends), then this will equal what</span></div>
+<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span><span class="comment">   * was passed to the connect_with_metadata() (or similar) method.  More likely, if this side</span></div>
+<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span><span class="comment">   * accepted the connection (Server_socket::accept() and friends), then this will equal what the</span></div>
+<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span><span class="comment">   * user on the OTHER side passed to connect_with_metadata() or similar.</span></div>
+<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span><span class="comment">   * @note It is up to the user to deserialize the metadata portably.  One recommended convention is to</span></div>
+<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span><span class="comment">   *       use `boost::endian::native_to_little()` (and similar) before connecting; and</span></div>
+<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span><span class="comment">   *       on the other side use the reverse (`boost::endian::little_to_native()`) before using the value.</span></div>
+<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span><span class="comment">   *       Packet dumps will show a flipped (little-endian) representation, while with most platforms the conversion</span></div>
+<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span><span class="comment">   *       will be a no-op at compile time.  Alternatively use `native_to_big()` and vice-versa.</span></div>
+<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span><span class="comment">   * @note If a connect() variant without `_with_metadata` in the name was used, then the metadata are</span></div>
+<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span><span class="comment">   *       composed of a single byte with the zero value.</span></div>
+<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span><span class="comment">   * @param buffer</span></div>
+<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span><span class="comment">   *        A buffer to copy the metadata into.</span></div>
+<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
+<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span><span class="comment">   * @return The size of the copied metadata.</span></div>
+<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a0c99637726b3c2b2ff1dbf14c6c92752">get_connect_metadata</a>(<span class="keyword">const</span> boost::asio::mutable_buffer&amp; buffer,</div>
+<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span>                              <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0) <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span><span class="comment"></span> </div>
+<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span><span class="comment">   * Sends (adds to the Send buffer) the given bytes of data up to a maximum internal buffer size;</span></div>
+<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span><span class="comment">   * and asynchronously sends them to the other side.  The data given is copied into `*this`, in the order</span></div>
+<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span><span class="comment">   * given.  Only as many bytes as possible without the Send buffer size exceeding a certain max are</span></div>
+<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span><span class="comment">   * copied.</span></div>
+<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span><span class="comment">   * The method does not block.  Data are then sent asynchronously (in the background).</span></div>
+<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span><span class="comment">   * Method does nothing except possibly logging if there are no bytes in data.</span></div>
+<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span><span class="comment">   * ### Error handling ###</span></div>
+<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span><span class="comment">   * These are the possible outcomes.</span></div>
+<div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span><span class="comment">   *   1. There is no space in the Send buffer (usually due to network congestion).  Socket not</span></div>
+<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span><span class="comment">   *      Writable.  0 is returned; `*err_code` is set to success unless null; no data buffered.</span></div>
+<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span><span class="comment">   *   2. The socket is not yet fully connected (`S_OPEN+S_CONNECTING` state).  Socket not</span></div>
+<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span><span class="comment">   *      Writable.  0 is returned; `*err_code` is set to success unless null; no data buffered.</span></div>
+<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span><span class="comment">   *   3. There is space in the Send buffer, and socket connection is open (`S_OPEN+S_CONNECTED`).</span></div>
+<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span><span class="comment">   *      Socket Writable.  &gt;= 1 is returned; `*err_code` is set to success; data buffered.</span></div>
+<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span><span class="comment">   *   4. The operation cannot proceed due to an error.  0 is returned; `*err_code` is set to the</span></div>
+<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span><span class="comment">   *      specific error unless null; no data buffered.  (If `err_code` null, Runtime_error thrown.)</span></div>
+<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span><span class="comment">   * The semantics of -3- (the success case) are as follows.  N bytes will be copied into Send</span></div>
+<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span><span class="comment">   * buffer from the start of the Const_buffer_sequence data.  These N bytes may be spread across 1</span></div>
+<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span><span class="comment">   * or more buffers in that sequence; the subdivision structure of the sequence of bytes into</span></div>
+<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span><span class="comment">   * buffers has no effect on what will be buffered in Send buffer (e.g., &quot;data&quot; could be N+ 1-byte</span></div>
+<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span><span class="comment">   * buffers, or one N+-byte buffer -- the result would be the same).  N equals the smaller of: the</span></div>
+<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span><span class="comment">   * available space in the Send buffer; and `buffer_size(data)`.  We return N.</span></div>
+<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span><span class="comment">   * ### Reliability and ordering guarantees: if the socket option rexmit-on is enabled ###</span></div>
+<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span><span class="comment">   * Reliability and ordering are guaranteed, and there is no notion of message boundaries.  There is no possibility</span></div>
+<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span><span class="comment">   * of data duplication.  In other words full stream-of-bytes functionality is provided, as in TCP.</span></div>
+<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span><span class="comment">   * ### Reliability and ordering guarantees: if the socket option rexmit-on is NOT enabled ###</span></div>
+<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span><span class="comment">   * NO reliability guarantees are given, UNLESS *ALL* calls to send() (and other `*send`() methods)</span></div>
+<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span><span class="comment">   * satisfy the condition: &#39;`buffer_size(data)` is a multiple of `sock-&gt;max_block_size()`&#39;; AND all</span></div>
+<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span><span class="comment">   * calls to receive() (and other `*receive()` methods) on the OTHER side satisfy the condition:</span></div>
+<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span><span class="comment">   * &#39;`buffer_size(target)` is a multiple of `sock-&gt;max_block_size()`.&#39;  If and only if these guidelines</span></div>
+<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span><span class="comment">   * are followed, and there is no connection closure, the following reliability guarantee is made:</span></div>
+<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span><span class="comment">   * Let a &quot;block&quot; be a contiguous chunk of bytes in a &quot;data&quot; buffer sequence immediately following</span></div>
+<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span><span class="comment">   * another &quot;block,&quot; except the first &quot;block&quot; in a connection, which begins with the first byte of</span></div>
+<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span><span class="comment">   * the &quot;data&quot; buffer sequence passed to the first `*send()` call on that connection.  Then: Each</span></div>
+<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span><span class="comment">   * given block will either be available to `*receive()` on the other side exactly once and without</span></div>
+<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span><span class="comment">   * corruption; or not available to `*receive()` at all.  Blocks may arrive in a different order than</span></div>
+<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span><span class="comment">   * specified here, including with respect to other `*send()` calls performed before or after this</span></div>
+<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span><span class="comment">   * one.  In other words, these are guaranteed: block boundary preservation, protection against</span></div>
+<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span><span class="comment">   * corruption, protection again duplication.  These are not guaranteed: order preservation,</span></div>
+<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span><span class="comment">   * delivery.  Informally, the latter factors are more likely to be present on higher quality</span></div>
+<div class="line"><a id="l00388" name="l00388"></a><span class="lineno">  388</span><span class="comment">   * network paths.</span></div>
+<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span><span class="comment">   * @tparam Const_buffer_sequence</span></div>
+<div class="line"><a id="l00391" name="l00391"></a><span class="lineno">  391</span><span class="comment">   *         Type that models the boost.asio `ConstBufferSequence` concept (see Boost docs).</span></div>
+<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span><span class="comment">   *         Basically, it&#39;s any container with elements convertible to `boost::asio::const_buffer`;</span></div>
+<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span><span class="comment">   *         and bidirectional iterator support.  Examples: `vector&lt;const_buffer&gt;`, `list&lt;const_buffer&gt;`.</span></div>
+<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span><span class="comment">   *         Why allow `const_buffer` instead of, say, `Sequence` of bytes?  Same reason as boost.asio&#39;s</span></div>
+<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span><span class="comment">   *         send functions: it allows a great amount of flexibility without sacrificing performance,</span></div>
+<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span><span class="comment">   *         since `boost::asio::buffer()` function can adapt lots of different objects (arrays,</span></div>
+<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span><span class="comment">   *         `vector`s, `string`s, and more -- composed of bytes, integers, and more).</span></div>
+<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span><span class="comment">   * @param data</span></div>
+<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span><span class="comment">   *        Buffer sequence from which a stream of bytes to add to Send buffer will be obtained.</span></div>
+<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
+<div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span><span class="comment">   *        Error implies that neither this send() nor any subsequent `*send()` on this socket</span></div>
+<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span><span class="comment">   *        will succeeed.  (In particular a clean disconnect is an error.)</span></div>
+<div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span><span class="comment">   * @return Number of bytes (possibly zero) added to buffer.  Always 0 if `bool(*err_code) == true` when</span></div>
+<div class="line"><a id="l00405" name="l00405"></a><span class="lineno">  405</span><span class="comment">   *         send() returns.</span></div>
+<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
+<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#af90b656d7e0b7e746b8beb4e24717cec">send</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
+<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span><span class="comment"></span> </div>
+<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span><span class="comment">   * Blocking (synchronous) version of send().  Acts just like send(), except that if Socket is not</span></div>
+<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span><span class="comment">   * immediately Writable (i.e., send() would return 0 and no error), waits until it is Writable</span></div>
+<div class="line"><a id="l00413" name="l00413"></a><span class="lineno">  413</span><span class="comment">   * (send() would return either &gt;0, or 0 and an error) and returns `send(data, err_code)`.  If a</span></div>
+<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span><span class="comment">   * timeout is specified, and this timeout expires before socket is Writable, acts like send()</span></div>
+<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span><span class="comment">   * executed on an un-Writable socket.</span></div>
+<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span><span class="comment">   * ### Error handling ###</span></div>
+<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span><span class="comment">   * These are the possible outcomes (assuming there are data in the argument `data`).</span></div>
+<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span><span class="comment">   *   1. There is space in the Send buffer, and socket connection</span></div>
+<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span><span class="comment">   *      is open (`S_OPEN+S_CONNECTED`).  Socket Writable.  &gt;= 1 is returned; `*err_code` is set to</span></div>
+<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span><span class="comment">   *      success unless null; data buffered.</span></div>
+<div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span><span class="comment">   *   2. The operation cannot proceed due to an error.  0 is returned; `*err_code` is set to the</span></div>
+<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span><span class="comment">   *      specific error unless null; no data buffered.  (If `err_code` null, Runtime_error thrown.)</span></div>
+<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span><span class="comment">   *      The code error::Code::S_WAIT_INTERRUPTED means the wait was interrupted</span></div>
+<div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span><span class="comment">   *      (similarly to POSIX&#39;s `EINTR`).</span></div>
+<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span><span class="comment">   *   3. Neither condition above is detected before the timeout expires (if provided).</span></div>
+<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span><span class="comment">   *      Output semantics are the same as in 2, with the specific code error::Code::S_WAIT_USER_TIMEOUT.</span></div>
+<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span><span class="comment">   * The semantics of -1- (the success case) equal those of send().</span></div>
+<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span><span class="comment">   * Note that it is NOT possible to return 0 and no error.</span></div>
+<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span><span class="comment">   * Tip: Typical types you might use for `max_wait`: `boost::chrono::milliseconds`,</span></div>
+<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span><span class="comment">   * `boost::chrono::seconds`, `boost::chrono::high_resolution_clock::duration`.</span></div>
+<div class="line"><a id="l00435" name="l00435"></a><span class="lineno">  435</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span><span class="comment">   * @see The version of sync_send() with no timeout.</span></div>
+<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span><span class="comment">   * @tparam Rep</span></div>
+<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span><span class="comment">   *         See boost::chrono::duration documentation (and see above tip).</span></div>
+<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span><span class="comment">   * @tparam Period</span></div>
+<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span><span class="comment">   *         See boost::chrono::duration documentation (and see above tip).</span></div>
+<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span><span class="comment">   * @tparam Const_buffer_sequence</span></div>
+<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span><span class="comment">   *         See send().</span></div>
+<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span><span class="comment">   * @param data</span></div>
+<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span><span class="comment">   *        See send().</span></div>
+<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span><span class="comment">   * @param max_wait</span></div>
+<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span><span class="comment">   *        The maximum amount of time from now to wait before giving up on the wait and returning.</span></div>
+<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span><span class="comment">   *        `&quot;duration&lt;Rep, Period&gt;::max()&quot;` will eliminate the time limit and cause indefinite wait</span></div>
+<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span><span class="comment">   *        (i.e., no timeout).</span></div>
+<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
+<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span><span class="comment">   *        Error, except `WAIT_INTERRUPTED` or `WAIT_USER_TIMEOUT`, implies that</span></div>
+<div class="line"><a id="l00452" name="l00452"></a><span class="lineno">  452</span><span class="comment">   *        neither this send() nor any subsequent send() on this socket</span></div>
+<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span><span class="comment">   *        will succeeed.  (In particular a clean disconnect is an error.)</span></div>
+<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span><span class="comment">   * @return Number of bytes (possibly zero) added to Send buffer.  Always 0 if `bool(*err_code) == true`</span></div>
+<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span><span class="comment">   *         when sync_send() returns.</span></div>
+<div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period, <span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
+<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">sync_send</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data,</div>
+<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span>                   <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
+<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span><span class="comment"></span> </div>
+<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span><span class="comment">   * `sync_send()` operating in `null_buffers` mode, wherein -- if Writable state is reached -- the actual data</span></div>
+<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span><span class="comment">   * are not moved out of any buffer, leaving that to the caller to do if desired.  Hence, this is a way of waiting</span></div>
+<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span><span class="comment">   * for Writable state that could be more concise in some situations than Event_set::sync_wait().</span></div>
+<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span><span class="comment">   * ### Error handling ###</span></div>
+<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span><span class="comment">   * These are the possible outcomes:</span></div>
+<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span><span class="comment">   *   1. There is space in the Send buffer; and socket is fully connected</span></div>
+<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span><span class="comment">   *      (`S_OPEN+S_CONNECTED`).  Socket</span></div>
+<div class="line"><a id="l00470" name="l00470"></a><span class="lineno">  470</span><span class="comment">   *      Writable.  `true` is returned; `*err_code` is set to success unless null.</span></div>
+<div class="line"><a id="l00471" name="l00471"></a><span class="lineno">  471</span><span class="comment">   *   2. The operation cannot proceed due to an error.  `false` is returned; `*err_code` is set to the</span></div>
+<div class="line"><a id="l00472" name="l00472"></a><span class="lineno">  472</span><span class="comment">   *      specific error unless null.  `*err_code == S_WAIT_INTERRUPTED` means the wait was</span></div>
+<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span><span class="comment">   *      interrupted (similarly to POSIX&#39;s `EINTR`).  (If `err_code` null, Runtime_error thrown.)</span></div>
+<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span><span class="comment">   *   3. Neither condition above is detected before the timeout expires (if provided).</span></div>
+<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span><span class="comment">   *      Output semantics are the same as in 2, with the specific code error::Code::S_WAIT_USER_TIMEOUT.</span></div>
+<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span><span class="comment">   * Note that it is NOT possible to return `false` and no error.</span></div>
+<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span><span class="comment">   * Tip: Typical types you might use for `max_wait`: `boost::chrono::milliseconds`,</span></div>
+<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span><span class="comment">   * `boost::chrono::seconds`, `boost::chrono::high_resolution_clock::duration`.</span></div>
+<div class="line"><a id="l00481" name="l00481"></a><span class="lineno">  481</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span><span class="comment">   * @tparam Rep</span></div>
+<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span><span class="comment">   *         See other sync_send().</span></div>
+<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span><span class="comment">   * @tparam Period</span></div>
+<div class="line"><a id="l00485" name="l00485"></a><span class="lineno">  485</span><span class="comment">   *         See other sync_send().</span></div>
+<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span><span class="comment">   * @param max_wait</span></div>
+<div class="line"><a id="l00487" name="l00487"></a><span class="lineno">  487</span><span class="comment">   *        See other sync_receive().</span></div>
+<div class="line"><a id="l00488" name="l00488"></a><span class="lineno">  488</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
+<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span><span class="comment">   *        Error, except `WAIT_INTERRUPTED` or `WAIT_USER_TIMEOUT`, implies that</span></div>
+<div class="line"><a id="l00491" name="l00491"></a><span class="lineno">  491</span><span class="comment">   *        neither this nor any subsequent send() on this socket</span></div>
+<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span><span class="comment">   *        will succeeed.  (In particular a clean disconnect is an error.)</span></div>
+<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span><span class="comment">   * @return `true` if 1+ bytes are possible to add to Send buffer; `false` if either a timeout has occurred (bytes</span></div>
+<div class="line"><a id="l00494" name="l00494"></a><span class="lineno">  494</span><span class="comment">   *         not writable), or another error has occurred.</span></div>
+<div class="line"><a id="l00495" name="l00495"></a><span class="lineno">  495</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period&gt;</div>
+<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">sync_send</a>(<span class="keyword">const</span> boost::asio::null_buffers&amp;,</div>
+<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span>                 <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
+<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span><span class="comment"></span> </div>
+<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00501" name="l00501"></a><span class="lineno">  501</span><span class="comment">   * Equivalent to `sync_send(data, duration::max(), err_code)`; i.e., sync_send() with no timeout.</span></div>
+<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00503" name="l00503"></a><span class="lineno">  503</span><span class="comment">   * @tparam Const_buffer_sequence</span></div>
+<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span><span class="comment">   *         See other sync_send().</span></div>
+<div class="line"><a id="l00505" name="l00505"></a><span class="lineno">  505</span><span class="comment">   * @param data</span></div>
+<div class="line"><a id="l00506" name="l00506"></a><span class="lineno">  506</span><span class="comment">   *        See other sync_send().</span></div>
+<div class="line"><a id="l00507" name="l00507"></a><span class="lineno">  507</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00508" name="l00508"></a><span class="lineno">  508</span><span class="comment">   *        See other sync_send().</span></div>
+<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span><span class="comment">   * @return See other sync_send().</span></div>
+<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00511" name="l00511"></a><span class="lineno">  511</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
+<div class="line"><a id="l00512" name="l00512"></a><span class="lineno">  512</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">sync_send</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
+<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span><span class="comment"></span> </div>
+<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span><span class="comment">   * Equivalent to `sync_send(null_buffers(), duration::max(), err_code)`; i.e., `sync_send(null_buffers)`</span></div>
+<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span><span class="comment">   * with no timeout.</span></div>
+<div class="line"><a id="l00517" name="l00517"></a><span class="lineno">  517</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00518" name="l00518"></a><span class="lineno">  518</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span><span class="comment">   *        See other sync_receive().</span></div>
+<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span><span class="comment">   * @param tag</span></div>
+<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span><span class="comment">   *        Tag argument.</span></div>
+<div class="line"><a id="l00522" name="l00522"></a><span class="lineno">  522</span><span class="comment">   * @return See other sync_receive().</span></div>
+<div class="line"><a id="l00523" name="l00523"></a><span class="lineno">  523</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">sync_send</a>(<span class="keyword">const</span> boost::asio::null_buffers&amp;, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
+<div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span><span class="comment"></span> </div>
+<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00527" name="l00527"></a><span class="lineno">  527</span><span class="comment">   * Receives (consumes from the Receive buffer) bytes of data, up to a given maximum</span></div>
+<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span><span class="comment">   * cumulative number of bytes as inferred from size of provided target buffer sequence.  The data</span></div>
+<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span><span class="comment">   * are copied into the user&#39;s structure and then removed from the Receive buffer.</span></div>
+<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00531" name="l00531"></a><span class="lineno">  531</span><span class="comment">   * The method does not block.  In particular if there are no data already received from the other</span></div>
+<div class="line"><a id="l00532" name="l00532"></a><span class="lineno">  532</span><span class="comment">   * side, we return no data.</span></div>
+<div class="line"><a id="l00533" name="l00533"></a><span class="lineno">  533</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span><span class="comment">   * If the provided buffer has size zero, the method is a NOOP other than possibly logging.</span></div>
+<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span><span class="comment">   * ### Error handling ###</span></div>
+<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span><span class="comment">   * These are the possible outcomes.</span></div>
+<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span><span class="comment">   *   1. There are no data in the Receive buffer.  Socket not Readable.  0 is returned;</span></div>
+<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span><span class="comment">   *      `*err_code` is set to success unless null; no data returned.</span></div>
+<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span><span class="comment">   *   2. The socket is not yet fully connected (`S_OPEN+S_CONNECTING`).  Socket not</span></div>
+<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span><span class="comment">   *      Readable.  0 is returned; `*err_code` is set to success unless null; no data returned.</span></div>
+<div class="line"><a id="l00542" name="l00542"></a><span class="lineno">  542</span><span class="comment">   *   3. There are data in the Receive buffer; and socket is fully connected (`S_OPEN+S_CONNECTED`)</span></div>
+<div class="line"><a id="l00543" name="l00543"></a><span class="lineno">  543</span><span class="comment">   *      or gracefully shutting down (`S_OPEN+S_DISCONNECTING`).  Socket Readable.  &gt;= 1 is returned;</span></div>
+<div class="line"><a id="l00544" name="l00544"></a><span class="lineno">  544</span><span class="comment">   *      *err_code is set to success; data returned.</span></div>
+<div class="line"><a id="l00545" name="l00545"></a><span class="lineno">  545</span><span class="comment">   *   4. The operation cannot proceed due to an error.  0 is returned; `*err_code` is set to the</span></div>
+<div class="line"><a id="l00546" name="l00546"></a><span class="lineno">  546</span><span class="comment">   *      specific error; no data buffered.  (If `err_code` null, Runtime_error thrown.)</span></div>
+<div class="line"><a id="l00547" name="l00547"></a><span class="lineno">  547</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00548" name="l00548"></a><span class="lineno">  548</span><span class="comment">   * The semantics of -3- (the success case) are as follows.  N bytes will be copied from Receive</span></div>
+<div class="line"><a id="l00549" name="l00549"></a><span class="lineno">  549</span><span class="comment">   * buffer beginning at the start of the `Mutable_buffer_sequence target`.  These N bytes may be</span></div>
+<div class="line"><a id="l00550" name="l00550"></a><span class="lineno">  550</span><span class="comment">   * spread across 1 or more buffers in that sequence; the subdivision structure of the sequence of</span></div>
+<div class="line"><a id="l00551" name="l00551"></a><span class="lineno">  551</span><span class="comment">   * bytes into buffers has no effect on the bytes, or order thereof, that will be moved from the</span></div>
+<div class="line"><a id="l00552" name="l00552"></a><span class="lineno">  552</span><span class="comment">   * Receive buffer (e.g., `target` could be N+ 1-byte buffers, or one N+-byte buffer</span></div>
+<div class="line"><a id="l00553" name="l00553"></a><span class="lineno">  553</span><span class="comment">   * -- the popped Receive buffer would be the same, as would be the extracted bytes).  N equals the</span></div>
+<div class="line"><a id="l00554" name="l00554"></a><span class="lineno">  554</span><span class="comment">   * smaller of: the available bytes in the Receive buffer; and `buffer_size(target)`.  We return N.</span></div>
+<div class="line"><a id="l00555" name="l00555"></a><span class="lineno">  555</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00556" name="l00556"></a><span class="lineno">  556</span><span class="comment">   * ### Reliability and ordering guarantees ###</span></div>
+<div class="line"><a id="l00557" name="l00557"></a><span class="lineno">  557</span><span class="comment">   * See the send() doc header.</span></div>
+<div class="line"><a id="l00558" name="l00558"></a><span class="lineno">  558</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00559" name="l00559"></a><span class="lineno">  559</span><span class="comment">   * @tparam Mutable_buffer_sequence</span></div>
+<div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span><span class="comment">   *         Type that models the boost.asio `MutableBufferSequence` concept (see Boost docs).</span></div>
+<div class="line"><a id="l00561" name="l00561"></a><span class="lineno">  561</span><span class="comment">   *         Basically, it&#39;s any container with elements convertible to `boost::asio::mutable_buffer`;</span></div>
+<div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span><span class="comment">   *         and bidirectional iterator support.  Examples: `vector&lt;mutable_buffer&gt;`,</span></div>
+<div class="line"><a id="l00563" name="l00563"></a><span class="lineno">  563</span><span class="comment">   *         `list&lt;mutable_buffer&gt;`.  Why allow `mutable_buffer` instead of, say, `Sequence` of bytes?</span></div>
+<div class="line"><a id="l00564" name="l00564"></a><span class="lineno">  564</span><span class="comment">   *         Same reason as boost.asio&#39;s receive functions: it allows a great amount of flexibility</span></div>
+<div class="line"><a id="l00565" name="l00565"></a><span class="lineno">  565</span><span class="comment">   *         without sacrificing performance, since `boost::asio::buffer()` function can adapt lots of</span></div>
+<div class="line"><a id="l00566" name="l00566"></a><span class="lineno">  566</span><span class="comment">   *         different objects (arrays, `vector`s, `string`s, and more of bytes, integers, and more).</span></div>
+<div class="line"><a id="l00567" name="l00567"></a><span class="lineno">  567</span><span class="comment">   * @param target</span></div>
+<div class="line"><a id="l00568" name="l00568"></a><span class="lineno">  568</span><span class="comment">   *        Buffer sequence to which a stream of bytes to consume from Receive buffer will be</span></div>
+<div class="line"><a id="l00569" name="l00569"></a><span class="lineno">  569</span><span class="comment">   *        written.</span></div>
+<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00571" name="l00571"></a><span class="lineno">  571</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
+<div class="line"><a id="l00572" name="l00572"></a><span class="lineno">  572</span><span class="comment">   *        Error implies that neither this receive() nor any subsequent receive() on this socket</span></div>
+<div class="line"><a id="l00573" name="l00573"></a><span class="lineno">  573</span><span class="comment">   *        will succeeed.  (In particular a clean disconnect is an error.)</span></div>
+<div class="line"><a id="l00574" name="l00574"></a><span class="lineno">  574</span><span class="comment">   * @return The number of bytes consumed (placed into `target`).  Always 0 if `bool(*err_code) == true`</span></div>
+<div class="line"><a id="l00575" name="l00575"></a><span class="lineno">  575</span><span class="comment">   *         when receive() returns.</span></div>
+<div class="line"><a id="l00576" name="l00576"></a><span class="lineno">  576</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00577" name="l00577"></a><span class="lineno">  577</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
+<div class="line"><a id="l00578" name="l00578"></a><span class="lineno">  578</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0">receive</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
+<div class="line"><a id="l00579" name="l00579"></a><span class="lineno">  579</span><span class="comment"></span> </div>
+<div class="line"><a id="l00580" name="l00580"></a><span class="lineno">  580</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00581" name="l00581"></a><span class="lineno">  581</span><span class="comment">   * Blocking (synchronous) version of receive().  Acts just like receive(), except that if socket</span></div>
+<div class="line"><a id="l00582" name="l00582"></a><span class="lineno">  582</span><span class="comment">   * is not immediately Readable (i.e., receive() would return 0 and no error), waits until it is</span></div>
+<div class="line"><a id="l00583" name="l00583"></a><span class="lineno">  583</span><span class="comment">   * Readable (receive() would return either &gt;0, or 0 and an error) and returns</span></div>
+<div class="line"><a id="l00584" name="l00584"></a><span class="lineno">  584</span><span class="comment">   * `receive(target, err_code)`.  If a timeout is specified, and this timeout expires before socket is</span></div>
+<div class="line"><a id="l00585" name="l00585"></a><span class="lineno">  585</span><span class="comment">   * Readable, it acts as if receive() produced error::Code::S_WAIT_USER_TIMEOUT.</span></div>
+<div class="line"><a id="l00586" name="l00586"></a><span class="lineno">  586</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00587" name="l00587"></a><span class="lineno">  587</span><span class="comment">   * ### Error handling ###</span></div>
+<div class="line"><a id="l00588" name="l00588"></a><span class="lineno">  588</span><span class="comment">   * These are the possible outcomes:</span></div>
+<div class="line"><a id="l00589" name="l00589"></a><span class="lineno">  589</span><span class="comment">   *   1. There are data in the Receive buffer; and socket is fully connected</span></div>
+<div class="line"><a id="l00590" name="l00590"></a><span class="lineno">  590</span><span class="comment">   *      (`S_OPEN+S_CONNECTED`) or gracefully shutting down (`S_OPEN+S_DISCONNECTING`).  Socket</span></div>
+<div class="line"><a id="l00591" name="l00591"></a><span class="lineno">  591</span><span class="comment">   *      Readable.  &gt;= 1 is returned; `*err_code` is set to success unless null; data returned.</span></div>
+<div class="line"><a id="l00592" name="l00592"></a><span class="lineno">  592</span><span class="comment">   *   2. The operation cannot proceed due to an error.  0 is returned; `*err_code` is set to the</span></div>
+<div class="line"><a id="l00593" name="l00593"></a><span class="lineno">  593</span><span class="comment">   *      specific error unless null; no data buffered.  `*err_code == S_WAIT_INTERRUPTED` means the wait was</span></div>
+<div class="line"><a id="l00594" name="l00594"></a><span class="lineno">  594</span><span class="comment">   *      interrupted (similarly to POSIX&#39;s `EINTR`).  (If `err_code` null, Runtime_error thrown.)</span></div>
+<div class="line"><a id="l00595" name="l00595"></a><span class="lineno">  595</span><span class="comment">   *   3. Neither condition above is detected before the timeout expires (if provided).</span></div>
+<div class="line"><a id="l00596" name="l00596"></a><span class="lineno">  596</span><span class="comment">   *      Output semantics are the same as in 2, with the specific code error::Code::S_WAIT_USER_TIMEOUT.</span></div>
+<div class="line"><a id="l00597" name="l00597"></a><span class="lineno">  597</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00598" name="l00598"></a><span class="lineno">  598</span><span class="comment">   * The semantics of -1- (the success case) equal those of receive().</span></div>
+<div class="line"><a id="l00599" name="l00599"></a><span class="lineno">  599</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00600" name="l00600"></a><span class="lineno">  600</span><span class="comment">   * Note that it is NOT possible to return 0 and no error.</span></div>
+<div class="line"><a id="l00601" name="l00601"></a><span class="lineno">  601</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00602" name="l00602"></a><span class="lineno">  602</span><span class="comment">   * Tip: Typical types you might use for `max_wait`: `boost::chrono::milliseconds`,</span></div>
+<div class="line"><a id="l00603" name="l00603"></a><span class="lineno">  603</span><span class="comment">   * `boost::chrono::seconds`, `boost::chrono::high_resolution_clock::duration`.</span></div>
+<div class="line"><a id="l00604" name="l00604"></a><span class="lineno">  604</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00605" name="l00605"></a><span class="lineno">  605</span><span class="comment">   * @see The version of sync_receive() with no timeout.</span></div>
+<div class="line"><a id="l00606" name="l00606"></a><span class="lineno">  606</span><span class="comment">   * @tparam Rep</span></div>
+<div class="line"><a id="l00607" name="l00607"></a><span class="lineno">  607</span><span class="comment">   *         See `boost::chrono::duration` documentation (and see above tip).</span></div>
+<div class="line"><a id="l00608" name="l00608"></a><span class="lineno">  608</span><span class="comment">   * @tparam Period</span></div>
+<div class="line"><a id="l00609" name="l00609"></a><span class="lineno">  609</span><span class="comment">   *         See `boost::chrono::duration` documentation (and see above tip).</span></div>
+<div class="line"><a id="l00610" name="l00610"></a><span class="lineno">  610</span><span class="comment">   * @tparam Mutable_buffer_sequence</span></div>
+<div class="line"><a id="l00611" name="l00611"></a><span class="lineno">  611</span><span class="comment">   *         See receive().</span></div>
+<div class="line"><a id="l00612" name="l00612"></a><span class="lineno">  612</span><span class="comment">   * @param target</span></div>
+<div class="line"><a id="l00613" name="l00613"></a><span class="lineno">  613</span><span class="comment">   *        See receive().</span></div>
+<div class="line"><a id="l00614" name="l00614"></a><span class="lineno">  614</span><span class="comment">   * @param max_wait</span></div>
+<div class="line"><a id="l00615" name="l00615"></a><span class="lineno">  615</span><span class="comment">   *        The maximum amount of time from now to wait before giving up on the wait and returning.</span></div>
+<div class="line"><a id="l00616" name="l00616"></a><span class="lineno">  616</span><span class="comment">   *        `&quot;duration&lt;Rep, Period&gt;::max()&quot;` will eliminate the time limit and cause indefinite wait</span></div>
+<div class="line"><a id="l00617" name="l00617"></a><span class="lineno">  617</span><span class="comment">   *        (i.e., no timeout).</span></div>
+<div class="line"><a id="l00618" name="l00618"></a><span class="lineno">  618</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00619" name="l00619"></a><span class="lineno">  619</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
+<div class="line"><a id="l00620" name="l00620"></a><span class="lineno">  620</span><span class="comment">   *        Error, except `WAIT_INTERRUPTED` or `WAIT_USER_TIMEOUT`, implies that</span></div>
+<div class="line"><a id="l00621" name="l00621"></a><span class="lineno">  621</span><span class="comment">   *        neither this receive() nor any subsequent receive() on this socket</span></div>
+<div class="line"><a id="l00622" name="l00622"></a><span class="lineno">  622</span><span class="comment">   *        will succeeed.  (In particular a clean disconnect is an error.)</span></div>
+<div class="line"><a id="l00623" name="l00623"></a><span class="lineno">  623</span><span class="comment">   * @return Number of bytes (possibly zero) added to target.  Always 0 if `bool(*err_code) == true` when</span></div>
+<div class="line"><a id="l00624" name="l00624"></a><span class="lineno">  624</span><span class="comment">   *         sync_receive() returns.</span></div>
+<div class="line"><a id="l00625" name="l00625"></a><span class="lineno">  625</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00626" name="l00626"></a><span class="lineno">  626</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period, <span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
+<div class="line"><a id="l00627" name="l00627"></a><span class="lineno">  627</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">sync_receive</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target,</div>
+<div class="line"><a id="l00628" name="l00628"></a><span class="lineno">  628</span>                      <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
+<div class="line"><a id="l00629" name="l00629"></a><span class="lineno">  629</span><span class="comment"></span> </div>
+<div class="line"><a id="l00630" name="l00630"></a><span class="lineno">  630</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00631" name="l00631"></a><span class="lineno">  631</span><span class="comment">   * `sync_receive()` operating in `null_buffers` mode, wherein -- if Readable state is reached -- the actual data</span></div>
+<div class="line"><a id="l00632" name="l00632"></a><span class="lineno">  632</span><span class="comment">   * are not moved into any buffer, leaving that to the caller to do if desired.  Hence, this is a way of waiting</span></div>
+<div class="line"><a id="l00633" name="l00633"></a><span class="lineno">  633</span><span class="comment">   * for Readable state that could be more concise in some situations than Event_set::sync_wait().</span></div>
+<div class="line"><a id="l00634" name="l00634"></a><span class="lineno">  634</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00635" name="l00635"></a><span class="lineno">  635</span><span class="comment">   * ### Error handling ###</span></div>
+<div class="line"><a id="l00636" name="l00636"></a><span class="lineno">  636</span><span class="comment">   * These are the possible outcomes:</span></div>
+<div class="line"><a id="l00637" name="l00637"></a><span class="lineno">  637</span><span class="comment">   *   1. There are data in the Receive buffer; and socket is fully connected</span></div>
+<div class="line"><a id="l00638" name="l00638"></a><span class="lineno">  638</span><span class="comment">   *      (`S_OPEN+S_CONNECTED`) or gracefully shutting down (`S_OPEN+S_DISCONNECTING`).  Socket</span></div>
+<div class="line"><a id="l00639" name="l00639"></a><span class="lineno">  639</span><span class="comment">   *      Readable.  `true` is returned; `*err_code` is set to success unless null.</span></div>
+<div class="line"><a id="l00640" name="l00640"></a><span class="lineno">  640</span><span class="comment">   *   2. The operation cannot proceed due to an error.  `false` is returned; `*err_code` is set to the</span></div>
+<div class="line"><a id="l00641" name="l00641"></a><span class="lineno">  641</span><span class="comment">   *      specific error unless null.  `*err_code == S_WAIT_INTERRUPTED` means the wait was</span></div>
+<div class="line"><a id="l00642" name="l00642"></a><span class="lineno">  642</span><span class="comment">   *      interrupted (similarly to POSIX&#39;s `EINTR`).  (If `err_code` null, Runtime_error thrown.)</span></div>
+<div class="line"><a id="l00643" name="l00643"></a><span class="lineno">  643</span><span class="comment">   *   3. Neither condition above is detected before the timeout expires (if provided).</span></div>
+<div class="line"><a id="l00644" name="l00644"></a><span class="lineno">  644</span><span class="comment">   *      Output semantics are the same as in 2, with the specific code error::Code::S_WAIT_USER_TIMEOUT.</span></div>
+<div class="line"><a id="l00645" name="l00645"></a><span class="lineno">  645</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00646" name="l00646"></a><span class="lineno">  646</span><span class="comment">   * Note that it is NOT possible to return `false` and no error.</span></div>
+<div class="line"><a id="l00647" name="l00647"></a><span class="lineno">  647</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00648" name="l00648"></a><span class="lineno">  648</span><span class="comment">   * Tip: Typical types you might use for `max_wait`: `boost::chrono::milliseconds`,</span></div>
+<div class="line"><a id="l00649" name="l00649"></a><span class="lineno">  649</span><span class="comment">   * `boost::chrono::seconds`, `boost::chrono::high_resolution_clock::duration`.</span></div>
+<div class="line"><a id="l00650" name="l00650"></a><span class="lineno">  650</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00651" name="l00651"></a><span class="lineno">  651</span><span class="comment">   * @tparam Rep</span></div>
+<div class="line"><a id="l00652" name="l00652"></a><span class="lineno">  652</span><span class="comment">   *         See other sync_receive().</span></div>
+<div class="line"><a id="l00653" name="l00653"></a><span class="lineno">  653</span><span class="comment">   * @tparam Period</span></div>
+<div class="line"><a id="l00654" name="l00654"></a><span class="lineno">  654</span><span class="comment">   *         See other sync_receive().</span></div>
+<div class="line"><a id="l00655" name="l00655"></a><span class="lineno">  655</span><span class="comment">   * @param max_wait</span></div>
+<div class="line"><a id="l00656" name="l00656"></a><span class="lineno">  656</span><span class="comment">   *        See other sync_receive().</span></div>
+<div class="line"><a id="l00657" name="l00657"></a><span class="lineno">  657</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00658" name="l00658"></a><span class="lineno">  658</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.</span></div>
+<div class="line"><a id="l00659" name="l00659"></a><span class="lineno">  659</span><span class="comment">   *        Error, except `WAIT_INTERRUPTED` or `WAIT_USER_TIMEOUT`, implies that</span></div>
+<div class="line"><a id="l00660" name="l00660"></a><span class="lineno">  660</span><span class="comment">   *        neither this nor any subsequent receive() on this socket</span></div>
+<div class="line"><a id="l00661" name="l00661"></a><span class="lineno">  661</span><span class="comment">   *        will succeeed.  (In particular a clean disconnect is an error.)</span></div>
+<div class="line"><a id="l00662" name="l00662"></a><span class="lineno">  662</span><span class="comment">   * @return `true` if there are 1+ bytes ready to read; `false` if either a timeout has occurred (no bytes ready), or</span></div>
+<div class="line"><a id="l00663" name="l00663"></a><span class="lineno">  663</span><span class="comment">   *         another error has occurred.</span></div>
+<div class="line"><a id="l00664" name="l00664"></a><span class="lineno">  664</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00665" name="l00665"></a><span class="lineno">  665</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period&gt;</div>
+<div class="line"><a id="l00666" name="l00666"></a><span class="lineno">  666</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">sync_receive</a>(<span class="keyword">const</span> boost::asio::null_buffers&amp;,</div>
+<div class="line"><a id="l00667" name="l00667"></a><span class="lineno">  667</span>                    <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
+<div class="line"><a id="l00668" name="l00668"></a><span class="lineno">  668</span><span class="comment"></span> </div>
+<div class="line"><a id="l00669" name="l00669"></a><span class="lineno">  669</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00670" name="l00670"></a><span class="lineno">  670</span><span class="comment">   * Equivalent to `sync_receive(target, duration::max(), err_code)`; i.e., sync_receive()</span></div>
+<div class="line"><a id="l00671" name="l00671"></a><span class="lineno">  671</span><span class="comment">   * with no timeout.</span></div>
+<div class="line"><a id="l00672" name="l00672"></a><span class="lineno">  672</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00673" name="l00673"></a><span class="lineno">  673</span><span class="comment">   * @tparam Mutable_buffer_sequence</span></div>
+<div class="line"><a id="l00674" name="l00674"></a><span class="lineno">  674</span><span class="comment">   *         See other sync_receive().</span></div>
+<div class="line"><a id="l00675" name="l00675"></a><span class="lineno">  675</span><span class="comment">   * @param target</span></div>
+<div class="line"><a id="l00676" name="l00676"></a><span class="lineno">  676</span><span class="comment">   *        See other sync_receive().</span></div>
+<div class="line"><a id="l00677" name="l00677"></a><span class="lineno">  677</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00678" name="l00678"></a><span class="lineno">  678</span><span class="comment">   *        See other sync_receive().</span></div>
+<div class="line"><a id="l00679" name="l00679"></a><span class="lineno">  679</span><span class="comment">   * @return See other sync_receive().</span></div>
+<div class="line"><a id="l00680" name="l00680"></a><span class="lineno">  680</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00681" name="l00681"></a><span class="lineno">  681</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
+<div class="line"><a id="l00682" name="l00682"></a><span class="lineno">  682</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">sync_receive</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
+<div class="line"><a id="l00683" name="l00683"></a><span class="lineno">  683</span><span class="comment"></span> </div>
+<div class="line"><a id="l00684" name="l00684"></a><span class="lineno">  684</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00685" name="l00685"></a><span class="lineno">  685</span><span class="comment">   * Equivalent to `sync_receive(null_buffers(), duration::max(), err_code)`; i.e., `sync_receive(null_buffers)`</span></div>
+<div class="line"><a id="l00686" name="l00686"></a><span class="lineno">  686</span><span class="comment">   * with no timeout.</span></div>
+<div class="line"><a id="l00687" name="l00687"></a><span class="lineno">  687</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00688" name="l00688"></a><span class="lineno">  688</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00689" name="l00689"></a><span class="lineno">  689</span><span class="comment">   *        See other sync_receive().</span></div>
+<div class="line"><a id="l00690" name="l00690"></a><span class="lineno">  690</span><span class="comment">   * @param tag</span></div>
+<div class="line"><a id="l00691" name="l00691"></a><span class="lineno">  691</span><span class="comment">   *        Tag argument.</span></div>
+<div class="line"><a id="l00692" name="l00692"></a><span class="lineno">  692</span><span class="comment">   * @return See other sync_receive().</span></div>
+<div class="line"><a id="l00693" name="l00693"></a><span class="lineno">  693</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00694" name="l00694"></a><span class="lineno">  694</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">sync_receive</a>(<span class="keyword">const</span> boost::asio::null_buffers&amp;, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
+<div class="line"><a id="l00695" name="l00695"></a><span class="lineno">  695</span><span class="comment"></span> </div>
+<div class="line"><a id="l00696" name="l00696"></a><span class="lineno">  696</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00697" name="l00697"></a><span class="lineno">  697</span><span class="comment">   * Acts as if fatal error error::Code::S_USER_CLOSED_ABRUPTLY has been discovered on the</span></div>
+<div class="line"><a id="l00698" name="l00698"></a><span class="lineno">  698</span><span class="comment">   * connection.  Does not block.</span></div>
+<div class="line"><a id="l00699" name="l00699"></a><span class="lineno">  699</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00700" name="l00700"></a><span class="lineno">  700</span><span class="comment">   * Post-condition: `state() == State::S_CLOSED`.  Additionally, assuming no loss on the</span></div>
+<div class="line"><a id="l00701" name="l00701"></a><span class="lineno">  701</span><span class="comment">   * network, the other side will close the connection with error</span></div>
+<div class="line"><a id="l00702" name="l00702"></a><span class="lineno">  702</span><span class="comment">   * error::Code::S_CONN_RESET_BY_OTHER_SIDE.</span></div>
+<div class="line"><a id="l00703" name="l00703"></a><span class="lineno">  703</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00704" name="l00704"></a><span class="lineno">  704</span><span class="comment">   * Note: Discovering a fatal error on the connection would trigger all event waits on this socket</span></div>
+<div class="line"><a id="l00705" name="l00705"></a><span class="lineno">  705</span><span class="comment">   * (sync_send(), sync_receive(), Event_set::sync_wait(), Event_set::async_wait()) to execute on-event</span></div>
+<div class="line"><a id="l00706" name="l00706"></a><span class="lineno">  706</span><span class="comment">   * behavior (return, return, return, invoke handler, respectively).  Therefore this method will cause</span></div>
+<div class="line"><a id="l00707" name="l00707"></a><span class="lineno">  707</span><span class="comment">   * just that, if applicable.</span></div>
+<div class="line"><a id="l00708" name="l00708"></a><span class="lineno">  708</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00709" name="l00709"></a><span class="lineno">  709</span><span class="comment">   * Note: As a corollary, a socket closing this way (or any other way) does NOT cause that socket&#39;s</span></div>
+<div class="line"><a id="l00710" name="l00710"></a><span class="lineno">  710</span><span class="comment">   * events (if any) to be removed from any Event_set objects.  Clearing an Event_set of all or some</span></div>
+<div class="line"><a id="l00711" name="l00711"></a><span class="lineno">  711</span><span class="comment">   * sockets is the Event_set user&#39;s responsibility (the classic way being Event_set::close()).</span></div>
+<div class="line"><a id="l00712" name="l00712"></a><span class="lineno">  712</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00713" name="l00713"></a><span class="lineno">  713</span><span class="comment">   * @warning The moment the other side is informed we have abruptly closed the connection, they</span></div>
+<div class="line"><a id="l00714" name="l00714"></a><span class="lineno">  714</span><span class="comment">   * will no longer be able to receive() any of it (even if data had been queued up in</span></div>
+<div class="line"><a id="l00715" name="l00715"></a><span class="lineno">  715</span><span class="comment">   * their Receive buffer).</span></div>
+<div class="line"><a id="l00716" name="l00716"></a><span class="lineno">  716</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00717" name="l00717"></a><span class="lineno">  717</span><span class="comment">   * @todo Currently this close_abruptly() is the only way for the user to explicitly close one specified socket.</span></div>
+<div class="line"><a id="l00718" name="l00718"></a><span class="lineno">  718</span><span class="comment">   * All other ways are due to error (or other side starting graceful shutdown, once we</span></div>
+<div class="line"><a id="l00719" name="l00719"></a><span class="lineno">  719</span><span class="comment">   * implement that).  Once we implement graceful close, via `close_start()` and `close_final()`,</span></div>
+<div class="line"><a id="l00720" name="l00720"></a><span class="lineno">  720</span><span class="comment">   * use of close_abruptly() should be discouraged, or it may even be deprecated (e.g.,</span></div>
+<div class="line"><a id="l00721" name="l00721"></a><span class="lineno">  721</span><span class="comment">   * `Node`s lack a way to initiate an abrupt close for a specific socket).</span></div>
+<div class="line"><a id="l00722" name="l00722"></a><span class="lineno">  722</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00723" name="l00723"></a><span class="lineno">  723</span><span class="comment">   * @todo close_abruptly() return `bool` (`false` on failure)?</span></div>
+<div class="line"><a id="l00724" name="l00724"></a><span class="lineno">  724</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00725" name="l00725"></a><span class="lineno">  725</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00726" name="l00726"></a><span class="lineno">  726</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.  Generated codes:</span></div>
+<div class="line"><a id="l00727" name="l00727"></a><span class="lineno">  727</span><span class="comment">   *        error::Code::S_NODE_NOT_RUNNING, or -- if socket already closed (`state() == State::S_CLOSED`) --</span></div>
+<div class="line"><a id="l00728" name="l00728"></a><span class="lineno">  728</span><span class="comment">   *        then the error that caused the closure.</span></div>
+<div class="line"><a id="l00729" name="l00729"></a><span class="lineno">  729</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00730" name="l00730"></a><span class="lineno">  730</span>  <span class="keywordtype">void</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a9ab710704237f912eb219f9b8d574afc">close_abruptly</a>(<a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
+<div class="line"><a id="l00731" name="l00731"></a><span class="lineno">  731</span><span class="comment"></span> </div>
+<div class="line"><a id="l00732" name="l00732"></a><span class="lineno">  732</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00733" name="l00733"></a><span class="lineno">  733</span><span class="comment">   * Dynamically replaces the current options set (options()) with the given options set.</span></div>
+<div class="line"><a id="l00734" name="l00734"></a><span class="lineno">  734</span><span class="comment">   * Only those members of `opts` designated as dynamic (as opposed to static) may be different</span></div>
+<div class="line"><a id="l00735" name="l00735"></a><span class="lineno">  735</span><span class="comment">   * between options() and `opts`.  If this is violated, it is an error, and no options are changed.</span></div>
+<div class="line"><a id="l00736" name="l00736"></a><span class="lineno">  736</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00737" name="l00737"></a><span class="lineno">  737</span><span class="comment">   * Typically one would acquire a copy of the existing options set via options(), modify the</span></div>
+<div class="line"><a id="l00738" name="l00738"></a><span class="lineno">  738</span><span class="comment">   * desired dynamic data members of that copy, and then apply that copy back by calling</span></div>
+<div class="line"><a id="l00739" name="l00739"></a><span class="lineno">  739</span><span class="comment">   * set_options().</span></div>
+<div class="line"><a id="l00740" name="l00740"></a><span class="lineno">  740</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00741" name="l00741"></a><span class="lineno">  741</span><span class="comment">   * @param opts</span></div>
+<div class="line"><a id="l00742" name="l00742"></a><span class="lineno">  742</span><span class="comment">   *        The new options to apply to this socket.  It is copied; no reference is saved.</span></div>
+<div class="line"><a id="l00743" name="l00743"></a><span class="lineno">  743</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00744" name="l00744"></a><span class="lineno">  744</span><span class="comment">   *        See flow::Error_code docs for error reporting semantics.  Generated codes:</span></div>
+<div class="line"><a id="l00745" name="l00745"></a><span class="lineno">  745</span><span class="comment">   *        error::Code::S_STATIC_OPTION_CHANGED, error::Code::S_OPTION_CHECK_FAILED,</span></div>
+<div class="line"><a id="l00746" name="l00746"></a><span class="lineno">  746</span><span class="comment">   *        error::Code::S_NODE_NOT_RUNNING.</span></div>
+<div class="line"><a id="l00747" name="l00747"></a><span class="lineno">  747</span><span class="comment">   * @return `true` on success, `false` on error.</span></div>
+<div class="line"><a id="l00748" name="l00748"></a><span class="lineno">  748</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00749" name="l00749"></a><span class="lineno">  749</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a7d31cf18a3c075873de1c46c0176e41f">set_options</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>&amp; opts, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code = 0);</div>
+<div class="line"><a id="l00750" name="l00750"></a><span class="lineno">  750</span><span class="comment"></span> </div>
+<div class="line"><a id="l00751" name="l00751"></a><span class="lineno">  751</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00752" name="l00752"></a><span class="lineno">  752</span><span class="comment">   * Copies this socket&#39;s option set and returns that copy.  If you intend to use set_options() to</span></div>
+<div class="line"><a id="l00753" name="l00753"></a><span class="lineno">  753</span><span class="comment">   * modify a socket&#39;s options, we recommend you make the modifications on the copy returned by</span></div>
+<div class="line"><a id="l00754" name="l00754"></a><span class="lineno">  754</span><span class="comment">   * options().</span></div>
+<div class="line"><a id="l00755" name="l00755"></a><span class="lineno">  755</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00756" name="l00756"></a><span class="lineno">  756</span><span class="comment">   * @todo Provide a similar options() method that loads an existing structure (for structure</span></div>
+<div class="line"><a id="l00757" name="l00757"></a><span class="lineno">  757</span><span class="comment">   * reuse).</span></div>
+<div class="line"><a id="l00758" name="l00758"></a><span class="lineno">  758</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00759" name="l00759"></a><span class="lineno">  759</span><span class="comment">   * @return See above.</span></div>
+<div class="line"><a id="l00760" name="l00760"></a><span class="lineno">  760</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00761" name="l00761"></a><span class="lineno">  761</span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#ad94e37c8cca01f801f13e9e0e0bc857d">options</a>() <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00762" name="l00762"></a><span class="lineno">  762</span><span class="comment"></span> </div>
+<div class="line"><a id="l00763" name="l00763"></a><span class="lineno">  763</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00764" name="l00764"></a><span class="lineno">  764</span><span class="comment">   * Returns a structure containing the most up-to-date stats about this connection.</span></div>
+<div class="line"><a id="l00765" name="l00765"></a><span class="lineno">  765</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00766" name="l00766"></a><span class="lineno">  766</span><span class="comment">   * @note At the cost of reducing locking overhead in 99.999999% of the Peer_socket&#39;s operation,</span></div>
+<div class="line"><a id="l00767" name="l00767"></a><span class="lineno">  767</span><span class="comment">   *       this method may take a bit of time to run.  It&#39;s still probably only 10 times or so slower than</span></div>
+<div class="line"><a id="l00768" name="l00768"></a><span class="lineno">  768</span><span class="comment">   *       a simple lock, work, unlock -- there is a condition variable and stuff involved -- but this may</span></div>
+<div class="line"><a id="l00769" name="l00769"></a><span class="lineno">  769</span><span class="comment">   *       matter if done very frequently.  So you probably should not.  (Hmmm... where did I get these estimates,</span></div>
+<div class="line"><a id="l00770" name="l00770"></a><span class="lineno">  770</span><span class="comment">   *       namely &quot;10 times or so&quot;?)</span></div>
+<div class="line"><a id="l00771" name="l00771"></a><span class="lineno">  771</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00772" name="l00772"></a><span class="lineno">  772</span><span class="comment">   * @todo Provide a similar info() method that loads an existing structure (for structure</span></div>
+<div class="line"><a id="l00773" name="l00773"></a><span class="lineno">  773</span><span class="comment">   * reuse).</span></div>
+<div class="line"><a id="l00774" name="l00774"></a><span class="lineno">  774</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00775" name="l00775"></a><span class="lineno">  775</span><span class="comment">   * @return See above.</span></div>
+<div class="line"><a id="l00776" name="l00776"></a><span class="lineno">  776</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00777" name="l00777"></a><span class="lineno">  777</span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__info.html">Peer_socket_info</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#aad81cc16fc6f0d353fdc1379e1dd4712">info</a>() <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00778" name="l00778"></a><span class="lineno">  778</span><span class="comment"></span> </div>
+<div class="line"><a id="l00779" name="l00779"></a><span class="lineno">  779</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00780" name="l00780"></a><span class="lineno">  780</span><span class="comment">   * The maximum number of bytes of user data per received or sent packet on this connection.  See</span></div>
+<div class="line"><a id="l00781" name="l00781"></a><span class="lineno">  781</span><span class="comment">   * Peer_socket_options::m_st_max_block_size.  Note that this method is ESSENTIAL when using the</span></div>
+<div class="line"><a id="l00782" name="l00782"></a><span class="lineno">  782</span><span class="comment">   * socket in unreliable mode (assuming you want to implement reliability outside of `net_flow`).</span></div>
+<div class="line"><a id="l00783" name="l00783"></a><span class="lineno">  783</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00784" name="l00784"></a><span class="lineno">  784</span><span class="comment">   * @return Ditto.</span></div>
+<div class="line"><a id="l00785" name="l00785"></a><span class="lineno">  785</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00786" name="l00786"></a><span class="lineno">  786</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#aa1f821dde38a7aa572651730744edbd8">max_block_size</a>() <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00787" name="l00787"></a><span class="lineno">  787</span><span class="comment"></span> </div>
+<div class="line"><a id="l00788" name="l00788"></a><span class="lineno">  788</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00789" name="l00789"></a><span class="lineno">  789</span><span class="comment">   * The error code that perviously caused state() to become State::S_CLOSED, or success code if state</span></div>
+<div class="line"><a id="l00790" name="l00790"></a><span class="lineno">  790</span><span class="comment">   * is not CLOSED.  For example, error::code::S_CONN_RESET_BY_OTHER_SIDE (if was connected) or</span></div>
+<div class="line"><a id="l00791" name="l00791"></a><span class="lineno">  791</span><span class="comment">   * error::Code::S_CONN_TIMEOUT (if was connecting)</span></div>
+<div class="line"><a id="l00792" name="l00792"></a><span class="lineno">  792</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00793" name="l00793"></a><span class="lineno">  793</span><span class="comment">   * @return Ditto.</span></div>
+<div class="line"><a id="l00794" name="l00794"></a><span class="lineno">  794</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00795" name="l00795"></a><span class="lineno">  795</span>  <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a74f6fd527766fdeb05a96c5c03729a00">disconnect_cause</a>() <span class="keyword">const</span>;</div>
+<div class="line"><a id="l00796" name="l00796"></a><span class="lineno">  796</span> </div>
+<div class="line"><a id="l00797" name="l00797"></a><span class="lineno">  797</span><span class="keyword">protected</span>:</div>
+<div class="line"><a id="l00798" name="l00798"></a><span class="lineno">  798</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l00799" name="l00799"></a><span class="lineno">  799</span><span class="comment"></span> </div>
+<div class="line"><a id="l00800" name="l00800"></a><span class="lineno">  800</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00801" name="l00801"></a><span class="lineno">  801</span><span class="comment">   * Constructs object; initializes most values to well-defined (0, empty, etc.) but not necessarily</span></div>
+<div class="line"><a id="l00802" name="l00802"></a><span class="lineno">  802</span><span class="comment">   * meaningful values.</span></div>
+<div class="line"><a id="l00803" name="l00803"></a><span class="lineno">  803</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00804" name="l00804"></a><span class="lineno">  804</span><span class="comment">   * @param logger_ptr</span></div>
+<div class="line"><a id="l00805" name="l00805"></a><span class="lineno">  805</span><span class="comment">   *        The Logger implementation to use subsequently.</span></div>
+<div class="line"><a id="l00806" name="l00806"></a><span class="lineno">  806</span><span class="comment">   * @param task_engine</span></div>
+<div class="line"><a id="l00807" name="l00807"></a><span class="lineno">  807</span><span class="comment">   *        IO service for the timer(s) stored as data member(s).</span></div>
+<div class="line"><a id="l00808" name="l00808"></a><span class="lineno">  808</span><span class="comment">   * @param opts</span></div>
+<div class="line"><a id="l00809" name="l00809"></a><span class="lineno">  809</span><span class="comment">   *        The options set to copy into this Peer_socket and use subsequently.</span></div>
+<div class="line"><a id="l00810" name="l00810"></a><span class="lineno">  810</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00811" name="l00811"></a><span class="lineno">  811</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a5003c554807f5b5b58989ad58be48d42">Peer_socket</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr,</div>
+<div class="line"><a id="l00812" name="l00812"></a><span class="lineno">  812</span>                       <a class="code hl_typedef" href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">util::Task_engine</a>* task_engine,</div>
+<div class="line"><a id="l00813" name="l00813"></a><span class="lineno">  813</span>                       <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a>&amp; opts);</div>
+<div class="line"><a id="l00814" name="l00814"></a><span class="lineno">  814</span> </div>
+<div class="line"><a id="l00815" name="l00815"></a><span class="lineno">  815</span><span class="keyword">private</span>:</div>
+<div class="line"><a id="l00816" name="l00816"></a><span class="lineno">  816</span>  <span class="comment">// Friends.</span></div>
+<div class="line"><a id="l00817" name="l00817"></a><span class="lineno">  817</span><span class="comment"></span> </div>
+<div class="line"><a id="l00818" name="l00818"></a><span class="lineno">  818</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00819" name="l00819"></a><span class="lineno">  819</span><span class="comment">   * See rationale for `friend`ing Node in class Peer_socket documentation header.</span></div>
+<div class="line"><a id="l00820" name="l00820"></a><span class="lineno">  820</span><span class="comment">   * @see Node.</span></div>
+<div class="line"><a id="l00821" name="l00821"></a><span class="lineno">  821</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00822" name="l00822"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a6db9d28bd448a131448276ee03de1e6d">  822</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Node.html">Node</a>;<span class="comment"></span></div>
+<div class="line"><a id="l00823" name="l00823"></a><span class="lineno">  823</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00824" name="l00824"></a><span class="lineno">  824</span><span class="comment">   * See rationale for `friend`ing Server_socket in class Peer_socket documentation header.</span></div>
+<div class="line"><a id="l00825" name="l00825"></a><span class="lineno">  825</span><span class="comment">   * @see Server_socket.</span></div>
+<div class="line"><a id="l00826" name="l00826"></a><span class="lineno">  826</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00827" name="l00827"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a2165381af6166d76afba06862c762367">  827</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Server__socket.html">Server_socket</a>;<span class="comment"></span></div>
+<div class="line"><a id="l00828" name="l00828"></a><span class="lineno">  828</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00829" name="l00829"></a><span class="lineno">  829</span><span class="comment">   * For access to `Sent_pkt_by_sent_when_map` and Sent_packet types, at least.</span></div>
+<div class="line"><a id="l00830" name="l00830"></a><span class="lineno">  830</span><span class="comment">   * (Drop_timer has no actual Peer_socket instance to mess with.)</span></div>
+<div class="line"><a id="l00831" name="l00831"></a><span class="lineno">  831</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00832" name="l00832"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad1259416e25ed2bd94bce3192c682e5d">  832</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Drop__timer.html">Drop_timer</a>;<span class="comment"></span></div>
+<div class="line"><a id="l00833" name="l00833"></a><span class="lineno">  833</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00834" name="l00834"></a><span class="lineno">  834</span><span class="comment">   * Stats modules have const access to all socket internals.</span></div>
+<div class="line"><a id="l00835" name="l00835"></a><span class="lineno">  835</span><span class="comment">   * @see Send_bandwidth_estimator.</span></div>
+<div class="line"><a id="l00836" name="l00836"></a><span class="lineno">  836</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00837" name="l00837"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a7c0f36768414ae35afeb525636a41290">  837</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Send__bandwidth__estimator.html">Send_bandwidth_estimator</a>;<span class="comment"></span></div>
+<div class="line"><a id="l00838" name="l00838"></a><span class="lineno">  838</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00839" name="l00839"></a><span class="lineno">  839</span><span class="comment">   * Congestion control modules have const access to all socket internals.</span></div>
+<div class="line"><a id="l00840" name="l00840"></a><span class="lineno">  840</span><span class="comment">   * @see Congestion_control_classic_data.</span></div>
+<div class="line"><a id="l00841" name="l00841"></a><span class="lineno">  841</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00842" name="l00842"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a73cd234409fb43c27e1f46f2303ca55d">  842</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Congestion__control__classic__data.html">Congestion_control_classic_data</a>;<span class="comment"></span></div>
+<div class="line"><a id="l00843" name="l00843"></a><span class="lineno">  843</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00844" name="l00844"></a><span class="lineno">  844</span><span class="comment">   * Congestion control modules have const access to all socket internals.</span></div>
+<div class="line"><a id="l00845" name="l00845"></a><span class="lineno">  845</span><span class="comment">   * @see Congestion_control_classic.</span></div>
+<div class="line"><a id="l00846" name="l00846"></a><span class="lineno">  846</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00847" name="l00847"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad1b055f28b89531ad98368286babfdb1">  847</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Congestion__control__classic.html">Congestion_control_classic</a>;<span class="comment"></span></div>
+<div class="line"><a id="l00848" name="l00848"></a><span class="lineno">  848</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00849" name="l00849"></a><span class="lineno">  849</span><span class="comment">   * Congestion control modules have const access to all socket internals.</span></div>
+<div class="line"><a id="l00850" name="l00850"></a><span class="lineno">  850</span><span class="comment">   * @see Congestion_control_classic_with_bandwidth_est.</span></div>
+<div class="line"><a id="l00851" name="l00851"></a><span class="lineno">  851</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00852" name="l00852"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a7020b02ef7daffcfd9004e41240f51b8">  852</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code hl_class" href="classflow_1_1net__flow_1_1Congestion__control__classic__with__bandwidth__est.html">Congestion_control_classic_with_bandwidth_est</a>;</div>
+<div class="line"><a id="l00853" name="l00853"></a><span class="lineno">  853</span> </div>
+<div class="line"><a id="l00854" name="l00854"></a><span class="lineno">  854</span>  <span class="comment">// Types.</span></div>
+<div class="line"><a id="l00855" name="l00855"></a><span class="lineno">  855</span><span class="comment"></span> </div>
+<div class="line"><a id="l00856" name="l00856"></a><span class="lineno">  856</span><span class="comment">  /// Short-hand for `shared_ptr` to immutable Drop_timer (can&#39;t use Drop_timer::Ptr due to C++ and circular reference).</span></div>
+<div class="line"><a id="l00857" name="l00857"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ae804be57cf09b9bf76eafa8ffff73de6">  857</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ae804be57cf09b9bf76eafa8ffff73de6">Drop_timer_ptr</a> = boost::shared_ptr&lt;Drop_timer&gt;;</div>
+<div class="line"><a id="l00858" name="l00858"></a><span class="lineno">  858</span><span class="comment"></span> </div>
+<div class="line"><a id="l00859" name="l00859"></a><span class="lineno">  859</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00860" name="l00860"></a><span class="lineno">  860</span><span class="comment">   * Short-hand for high-performance, non-reentrant, exclusive mutex used to lock #m_opts.</span></div>
+<div class="line"><a id="l00861" name="l00861"></a><span class="lineno">  861</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00862" name="l00862"></a><span class="lineno">  862</span><span class="comment">   * ### Rationale ###</span></div>
+<div class="line"><a id="l00863" name="l00863"></a><span class="lineno">  863</span><span class="comment">   * You might notice this seems tailor-made for shared/exclusive (a/k/a multiple-readers-single-writer) mutex.</span></div>
+<div class="line"><a id="l00864" name="l00864"></a><span class="lineno">  864</span><span class="comment">   * Why a 2-level mutex instead of a normal exclusive mutex?  Because options can be accessed by</span></div>
+<div class="line"><a id="l00865" name="l00865"></a><span class="lineno">  865</span><span class="comment">   * thread W and various user threads, in the vast majority of the time to read option values.  On</span></div>
+<div class="line"><a id="l00866" name="l00866"></a><span class="lineno">  866</span><span class="comment">   * the other hand, rarely, #m_opts may be modified via set_options().  To avoid thread contention</span></div>
+<div class="line"><a id="l00867" name="l00867"></a><span class="lineno">  867</span><span class="comment">   * when no one is writing (which is usual), we could use that 2-level type of mutex and apply the appropriate</span></div>
+<div class="line"><a id="l00868" name="l00868"></a><span class="lineno">  868</span><span class="comment">   * (shared or unique) lock depending on the situation.  So why not?  Answer:</span></div>
+<div class="line"><a id="l00869" name="l00869"></a><span class="lineno">  869</span><span class="comment">   * While a shared/exclusive mutex sounds lovely in theory -- and perhaps</span></div>
+<div class="line"><a id="l00870" name="l00870"></a><span class="lineno">  870</span><span class="comment">   * if its implementation were closer to the hardware it would be lovely indeed -- in practice it seems its</span></div>
+<div class="line"><a id="l00871" name="l00871"></a><span class="lineno">  871</span><span class="comment">   * implementation just causes performance problems rather than solving them.  Apparently that&#39;s why</span></div>
+<div class="line"><a id="l00872" name="l00872"></a><span class="lineno">  872</span><span class="comment">   * it was rejected by C++11 standards people w/r/t inclusion in that standard.  The people involved</span></div>
+<div class="line"><a id="l00873" name="l00873"></a><span class="lineno">  873</span><span class="comment">   * explained their decision here: http://permalink.gmane.org/gmane.comp.lib.boost.devel/211180.</span></div>
+<div class="line"><a id="l00874" name="l00874"></a><span class="lineno">  874</span><span class="comment">   * So until that is improved, just do this.  I&#39;m not even adding a to-do for fixing this, as that seems</span></div>
+<div class="line"><a id="l00875" name="l00875"></a><span class="lineno">  875</span><span class="comment">   * unlikely anytime soon.  Update: C++17 added `std::shared_mutex`, and C++14 added a similar thing named</span></div>
+<div class="line"><a id="l00876" name="l00876"></a><span class="lineno">  876</span><span class="comment">   * something else.  Seems like a good time to revisit this -- if not to materially improve #Options_mutex</span></div>
+<div class="line"><a id="l00877" name="l00877"></a><span class="lineno">  877</span><span class="comment">   * performance then to gain up-to-date knowledge on the topic, specifically whether `shared_mutex` is fast now.</span></div>
+<div class="line"><a id="l00878" name="l00878"></a><span class="lineno">  878</span><span class="comment">   * Update: Apparently as of Boost-1.80 the Boost.thread impl of `shared_mutex` is lacking in perf, and there</span></div>
+<div class="line"><a id="l00879" name="l00879"></a><span class="lineno">  879</span><span class="comment">   * is a ticket filed for many years for this.  Perhaps gcc `std::shared_mutex` is fine.  However research</span></div>
+<div class="line"><a id="l00880" name="l00880"></a><span class="lineno">  880</span><span class="comment">   * suggests it&#39;s less about this nitty-gritty of various impls and more the following bottom line:</span></div>
+<div class="line"><a id="l00881" name="l00881"></a><span class="lineno">  881</span><span class="comment">   * A simple mutex is *very* fast to lock/unlock, and perf problems occur only if one must wait for a lock.</span></div>
+<div class="line"><a id="l00882" name="l00882"></a><span class="lineno">  882</span><span class="comment">   * Experts say that it is possible but quite rare that there is enough lock contention to make it &quot;worth it&quot;:</span></div>
+<div class="line"><a id="l00883" name="l00883"></a><span class="lineno">  883</span><span class="comment">   * a shared mutex is *much* slower to lock/unlock sans contention.  Only when the read critical sections are</span></div>
+<div class="line"><a id="l00884" name="l00884"></a><span class="lineno">  884</span><span class="comment">   * long and very frequently accessed does it become &quot;worth it.&quot;</span></div>
+<div class="line"><a id="l00885" name="l00885"></a><span class="lineno">  885</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00886" name="l00886"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a1e1379f9a0269d6990f26bf1da045657">  886</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1e1379f9a0269d6990f26bf1da045657">Options_mutex</a> = <a class="code hl_typedef" href="namespaceflow_1_1util.html#add6ade273326f27eaf9bfd170a909626">util::Mutex_non_recursive</a>;</div>
+<div class="line"><a id="l00887" name="l00887"></a><span class="lineno">  887</span><span class="comment"></span> </div>
+<div class="line"><a id="l00888" name="l00888"></a><span class="lineno">  888</span><span class="comment">  /// Short-hand for lock that acquires exclusive access to an #Options_mutex.</span></div>
+<div class="line"><a id="l00889" name="l00889"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">  889</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">Options_lock</a> = <a class="code hl_typedef" href="namespaceflow_1_1util.html#a5d2247b715da63e4b960909561b90ae7">util::Lock_guard&lt;Options_mutex&gt;</a>;</div>
+<div class="line"><a id="l00890" name="l00890"></a><span class="lineno">  890</span><span class="comment"></span> </div>
+<div class="line"><a id="l00891" name="l00891"></a><span class="lineno">  891</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00892" name="l00892"></a><span class="lineno">  892</span><span class="comment">   * Short-hand for reentrant mutex type.  We explicitly rely on reentrant behavior, so this isn&#39;t &quot;just in case.&quot;</span></div>
+<div class="line"><a id="l00893" name="l00893"></a><span class="lineno">  893</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00894" name="l00894"></a><span class="lineno">  894</span><span class="comment">   * @todo This doc header for Peer_socket::Mutex should specify what specific behavior requires mutex reentrance, so</span></div>
+<div class="line"><a id="l00895" name="l00895"></a><span class="lineno">  895</span><span class="comment">   * that for example one could reevaluate whether there&#39;s a sleeker code pattern that would avoid it.</span></div>
+<div class="line"><a id="l00896" name="l00896"></a><span class="lineno">  896</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00897" name="l00897"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad1e36619c78b15f46576a18678a4ee67">  897</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ad1e36619c78b15f46576a18678a4ee67">Mutex</a> = <a class="code hl_typedef" href="namespaceflow_1_1util.html#a9c7a5df07c2e86c788de9e6bbaee77d5">util::Mutex_recursive</a>;</div>
+<div class="line"><a id="l00898" name="l00898"></a><span class="lineno">  898</span><span class="comment"></span> </div>
+<div class="line"><a id="l00899" name="l00899"></a><span class="lineno">  899</span><span class="comment">  /// Short-hand for RAII lock guard of #Mutex.</span></div>
+<div class="line"><a id="l00900" name="l00900"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">  900</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Lock_guard</a> = <a class="code hl_typedef" href="namespaceflow_1_1util.html#a5d2247b715da63e4b960909561b90ae7">util::Lock_guard&lt;Mutex&gt;</a>;</div>
+<div class="line"><a id="l00901" name="l00901"></a><span class="lineno">  901</span><span class="comment"></span> </div>
+<div class="line"><a id="l00902" name="l00902"></a><span class="lineno">  902</span><span class="comment">  /// Type used for #m_security_token.</span></div>
+<div class="line"><a id="l00903" name="l00903"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a59db68ed0c77a9f6e1a7aeeb3df2a6b9">  903</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a59db68ed0c77a9f6e1a7aeeb3df2a6b9">security_token_t</a> = uint64_t;</div>
+<div class="line"><a id="l00904" name="l00904"></a><span class="lineno">  904</span><span class="comment"></span> </div>
+<div class="line"><a id="l00905" name="l00905"></a><span class="lineno">  905</span><span class="comment">  /// Short-hand for order number type.  0 is reserved.  Caution: Keep in sync with Drop_timer::packet_id_t.</span></div>
+<div class="line"><a id="l00906" name="l00906"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">  906</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">order_num_t</a> = <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">Sequence_number::seq_num_t</a>;</div>
+<div class="line"><a id="l00907" name="l00907"></a><span class="lineno">  907</span><span class="comment"></span> </div>
+<div class="line"><a id="l00908" name="l00908"></a><span class="lineno">  908</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00909" name="l00909"></a><span class="lineno">  909</span><span class="comment">   * The state of the socket (and the connection from this end&#39;s point of view) for the internal state</span></div>
+<div class="line"><a id="l00910" name="l00910"></a><span class="lineno">  910</span><span class="comment">   * machine governing the operation of the socket.</span></div>
+<div class="line"><a id="l00911" name="l00911"></a><span class="lineno">  911</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00912" name="l00912"></a><span class="lineno">  912</span><span class="comment">   * @todo Peer_socket::Int_state will also include various states on way to a graceful close, once we implement that.</span></div>
+<div class="line"><a id="l00913" name="l00913"></a><span class="lineno">  913</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00914" name="l00914"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">  914</a></span>  <span class="keyword">enum class</span> <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">Int_state</a></div>
+<div class="line"><a id="l00915" name="l00915"></a><span class="lineno">  915</span>  {<span class="comment"></span></div>
+<div class="line"><a id="l00916" name="l00916"></a><span class="lineno">  916</span><span class="comment">    /// Closed (dead or new) socket.</span></div>
+<div class="line"><a id="l00917" name="l00917"></a><span class="lineno">  917</span><span class="comment"></span>    S_CLOSED,</div>
+<div class="line"><a id="l00918" name="l00918"></a><span class="lineno">  918</span><span class="comment"></span> </div>
+<div class="line"><a id="l00919" name="l00919"></a><span class="lineno">  919</span><span class="comment">    /**</span></div>
+<div class="line"><a id="l00920" name="l00920"></a><span class="lineno">  920</span><span class="comment">     * Public state is OPEN+CONNECTING; user requested active connect; we sent SYN and are</span></div>
+<div class="line"><a id="l00921" name="l00921"></a><span class="lineno">  921</span><span class="comment">     * awaiting response.</span></div>
+<div class="line"><a id="l00922" name="l00922"></a><span class="lineno">  922</span><span class="comment">     */</span></div>
+<div class="line"><a id="l00923" name="l00923"></a><span class="lineno">  923</span>    S_SYN_SENT,</div>
+<div class="line"><a id="l00924" name="l00924"></a><span class="lineno">  924</span><span class="comment"></span> </div>
+<div class="line"><a id="l00925" name="l00925"></a><span class="lineno">  925</span><span class="comment">    /**</span></div>
+<div class="line"><a id="l00926" name="l00926"></a><span class="lineno">  926</span><span class="comment">     * Public state is OPEN+CONNECTING; other side requested passive connect via SYN; we sent</span></div>
+<div class="line"><a id="l00927" name="l00927"></a><span class="lineno">  927</span><span class="comment">     * SYN_ACK and are awaiting response.</span></div>
+<div class="line"><a id="l00928" name="l00928"></a><span class="lineno">  928</span><span class="comment">     */</span></div>
+<div class="line"><a id="l00929" name="l00929"></a><span class="lineno">  929</span>    S_SYN_RCVD,</div>
+<div class="line"><a id="l00930" name="l00930"></a><span class="lineno">  930</span><span class="comment"></span> </div>
+<div class="line"><a id="l00931" name="l00931"></a><span class="lineno">  931</span><span class="comment">    /// Public state is OPEN+CONNECTED; in our opinion the connection is established.</span></div>
+<div class="line"><a id="l00932" name="l00932"></a><span class="lineno">  932</span><span class="comment"></span>    S_ESTABLISHED</div>
+<div class="line"><a id="l00933" name="l00933"></a><span class="lineno">  933</span>  }; <span class="comment">// enum class Int_state</span></div>
+<div class="line"><a id="l00934" name="l00934"></a><span class="lineno">  934</span> </div>
+<div class="line"><a id="l00935" name="l00935"></a><span class="lineno">  935</span>  <span class="comment">// Friend of Peer_socket: For access to private alias Int_state.</span></div>
+<div class="line"><a id="l00936" name="l00936"></a><span class="lineno">  936</span>  <span class="keyword">friend</span> std::ostream&amp; <a class="code hl_friend" href="classflow_1_1net__flow_1_1Peer__socket.html#a03ea7069aa4779abaf274989bd4c2fb6">operator&lt;&lt;</a>(std::ostream&amp; os, <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">Int_state</a> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#af982953b5136c1df488066eacc293a78">state</a>);</div>
+<div class="line"><a id="l00937" name="l00937"></a><span class="lineno">  937</span> </div>
+<div class="line"><a id="l00938" name="l00938"></a><span class="lineno">  938</span>  <span class="keyword">struct </span>Sent_packet;</div>
+<div class="line"><a id="l00939" name="l00939"></a><span class="lineno">  939</span><span class="comment"></span> </div>
+<div class="line"><a id="l00940" name="l00940"></a><span class="lineno">  940</span><span class="comment">  /// Short-hand for #m_snd_flying_pkts_by_sent_when type; see that data member.</span></div>
+<div class="line"><a id="l00941" name="l00941"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad10b3cd1d32b48cab8146ba4d07cb814">  941</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_class" href="classflow_1_1util_1_1Linked__hash__map.html">Sent_pkt_by_sent_when_map</a> = <a class="code hl_class" href="classflow_1_1util_1_1Linked__hash__map.html">util::Linked_hash_map&lt;Sequence_number, boost::shared_ptr&lt;Sent_packet&gt;</a>&gt;;</div>
+<div class="line"><a id="l00942" name="l00942"></a><span class="lineno">  942</span><span class="comment"></span> </div>
+<div class="line"><a id="l00943" name="l00943"></a><span class="lineno">  943</span><span class="comment">  /// Short-hand for #m_snd_flying_pkts_by_sent_when `const` iterator type.</span></div>
+<div class="line"><a id="l00944" name="l00944"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">  944</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">Sent_pkt_ordered_by_when_const_iter</a> = <a class="code hl_typedef" href="classflow_1_1util_1_1Linked__hash__map.html#a2b5383264c89ac63cc8827b18063f2ca">Sent_pkt_by_sent_when_map::const_iterator</a>;</div>
+<div class="line"><a id="l00945" name="l00945"></a><span class="lineno">  945</span><span class="comment"></span> </div>
+<div class="line"><a id="l00946" name="l00946"></a><span class="lineno">  946</span><span class="comment">  /// Short-hand for #m_snd_flying_pkts_by_sent_when iterator type.</span></div>
+<div class="line"><a id="l00947" name="l00947"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">  947</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">Sent_pkt_ordered_by_when_iter</a> = <a class="code hl_typedef" href="classflow_1_1util_1_1Linked__hash__map.html#a1f09f98b4089a8c3ffd0b7f732923b44">Sent_pkt_by_sent_when_map::iterator</a>;</div>
+<div class="line"><a id="l00948" name="l00948"></a><span class="lineno">  948</span><span class="comment"></span> </div>
+<div class="line"><a id="l00949" name="l00949"></a><span class="lineno">  949</span><span class="comment">  /// Short-hand for #m_snd_flying_pkts_by_seq_num type; see that data member.</span></div>
+<div class="line"><a id="l00950" name="l00950"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a1958264af0c40f3c9c5769ddff4c9ade">  950</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1958264af0c40f3c9c5769ddff4c9ade">Sent_pkt_by_seq_num_map</a> = std::map&lt;Sequence_number, Sent_pkt_ordered_by_when_iter&gt;;</div>
+<div class="line"><a id="l00951" name="l00951"></a><span class="lineno">  951</span><span class="comment"></span> </div>
+<div class="line"><a id="l00952" name="l00952"></a><span class="lineno">  952</span><span class="comment">  /// Short-hand for #m_snd_flying_pkts_by_seq_num `const` iterator type.</span></div>
+<div class="line"><a id="l00953" name="l00953"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#abd6f3174914c3ec559954b4125f2f9dd">  953</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#abd6f3174914c3ec559954b4125f2f9dd">Sent_pkt_ordered_by_seq_const_iter</a> = Sent_pkt_by_seq_num_map::const_iterator;</div>
+<div class="line"><a id="l00954" name="l00954"></a><span class="lineno">  954</span><span class="comment"></span> </div>
+<div class="line"><a id="l00955" name="l00955"></a><span class="lineno">  955</span><span class="comment">  /// Short-hand for #m_snd_flying_pkts_by_seq_num iterator type.</span></div>
+<div class="line"><a id="l00956" name="l00956"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a9320421e96ab89e6528da6a28b008709">  956</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a9320421e96ab89e6528da6a28b008709">Sent_pkt_ordered_by_seq_iter</a> = Sent_pkt_by_seq_num_map::iterator;</div>
+<div class="line"><a id="l00957" name="l00957"></a><span class="lineno">  957</span> </div>
+<div class="line"><a id="l00958" name="l00958"></a><span class="lineno">  958</span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html">Received_packet</a>;</div>
+<div class="line"><a id="l00959" name="l00959"></a><span class="lineno">  959</span><span class="comment"></span> </div>
+<div class="line"><a id="l00960" name="l00960"></a><span class="lineno">  960</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00961" name="l00961"></a><span class="lineno">  961</span><span class="comment">   * Short-hand for #m_rcv_packets_with_gaps type; see that data member.  `struct`s are stored via</span></div>
+<div class="line"><a id="l00962" name="l00962"></a><span class="lineno">  962</span><span class="comment">   * shared pointers instead of as direct objects to minimize copying of potentially heavy-weight</span></div>
+<div class="line"><a id="l00963" name="l00963"></a><span class="lineno">  963</span><span class="comment">   * data.  They are stored as shared pointers instead of as raw pointers to avoid having to</span></div>
+<div class="line"><a id="l00964" name="l00964"></a><span class="lineno">  964</span><span class="comment">   * worry about `delete`.</span></div>
+<div class="line"><a id="l00965" name="l00965"></a><span class="lineno">  965</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00966" name="l00966"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#addfc181f4d43ab816b2ede9216bf9331">  966</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#addfc181f4d43ab816b2ede9216bf9331">Recvd_pkt_map</a> = std::map&lt;Sequence_number, boost::shared_ptr&lt;Received_packet&gt;&gt;;</div>
+<div class="line"><a id="l00967" name="l00967"></a><span class="lineno">  967</span><span class="comment"></span> </div>
+<div class="line"><a id="l00968" name="l00968"></a><span class="lineno">  968</span><span class="comment">  /// Short-hand for #m_rcv_packets_with_gaps `const` iterator type.</span></div>
+<div class="line"><a id="l00969" name="l00969"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ade41e13eb5176d833c7b1ea144612353">  969</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ade41e13eb5176d833c7b1ea144612353">Recvd_pkt_const_iter</a> = Recvd_pkt_map::const_iterator;</div>
+<div class="line"><a id="l00970" name="l00970"></a><span class="lineno">  970</span><span class="comment"></span> </div>
+<div class="line"><a id="l00971" name="l00971"></a><span class="lineno">  971</span><span class="comment">  /// Short-hand for #m_rcv_packets_with_gaps iterator type.</span></div>
+<div class="line"><a id="l00972" name="l00972"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aaec992a7a14368623cc03c4382d71107">  972</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#aaec992a7a14368623cc03c4382d71107">Recvd_pkt_iter</a> = Recvd_pkt_map::iterator;</div>
+<div class="line"><a id="l00973" name="l00973"></a><span class="lineno">  973</span> </div>
+<div class="line"><a id="l00974" name="l00974"></a><span class="lineno">  974</span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">Individual_ack</a>;</div>
+<div class="line"><a id="l00975" name="l00975"></a><span class="lineno">  975</span><span class="comment"></span> </div>
+<div class="line"><a id="l00976" name="l00976"></a><span class="lineno">  976</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00977" name="l00977"></a><span class="lineno">  977</span><span class="comment">   * Type used for #m_rcv_syn_rcvd_data_q.  Using `vector` because we only need `push_back()` and</span></div>
+<div class="line"><a id="l00978" name="l00978"></a><span class="lineno">  978</span><span class="comment">   * iteration at the moment.  Using pointer to non-`const` instead of `const` because when we actually handle the</span></div>
+<div class="line"><a id="l00979" name="l00979"></a><span class="lineno">  979</span><span class="comment">   * packet as received we will need to be able to modify the packet for performance (see</span></div>
+<div class="line"><a id="l00980" name="l00980"></a><span class="lineno">  980</span><span class="comment">   * Node::handle_data_to_established(), when it transfers data to Receive buffer).</span></div>
+<div class="line"><a id="l00981" name="l00981"></a><span class="lineno">  981</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00982" name="l00982"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a1869760d5cfc5c0d22665e5db88710e4">  982</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1869760d5cfc5c0d22665e5db88710e4">Rcv_syn_rcvd_data_q</a> = std::vector&lt;boost::shared_ptr&lt;Data_packet&gt;&gt;;</div>
+<div class="line"><a id="l00983" name="l00983"></a><span class="lineno">  983</span> </div>
+<div class="line"><a id="l00984" name="l00984"></a><span class="lineno">  984</span>  <span class="comment">/* Methods: as few as possible.  Logic should reside in class Node as discussed (though</span></div>
+<div class="line"><a id="l00985" name="l00985"></a><span class="lineno">  985</span><span class="comment">   * implementation may be in peer_socket.cpp).  See rationale in class Peer_socket</span></div>
+<div class="line"><a id="l00986" name="l00986"></a><span class="lineno">  986</span><span class="comment">   * documentation header. */</span></div>
+<div class="line"><a id="l00987" name="l00987"></a><span class="lineno">  987</span><span class="comment"></span> </div>
+<div class="line"><a id="l00988" name="l00988"></a><span class="lineno">  988</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00989" name="l00989"></a><span class="lineno">  989</span><span class="comment">   * Non-template helper for template send() that forwards the send() logic to Node::send().  Would</span></div>
+<div class="line"><a id="l00990" name="l00990"></a><span class="lineno">  990</span><span class="comment">   * be pointless to try to explain more here; see code and how it&#39;s used.  Anyway, this has to be</span></div>
+<div class="line"><a id="l00991" name="l00991"></a><span class="lineno">  991</span><span class="comment">   * in this class.</span></div>
+<div class="line"><a id="l00992" name="l00992"></a><span class="lineno">  992</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00993" name="l00993"></a><span class="lineno">  993</span><span class="comment">   * @param snd_buf_feed_func</span></div>
+<div class="line"><a id="l00994" name="l00994"></a><span class="lineno">  994</span><span class="comment">   *        Function that will perform and return `m_snd_buf-&gt;feed(...)`.  See send().</span></div>
+<div class="line"><a id="l00995" name="l00995"></a><span class="lineno">  995</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l00996" name="l00996"></a><span class="lineno">  996</span><span class="comment">   *        See send().</span></div>
+<div class="line"><a id="l00997" name="l00997"></a><span class="lineno">  997</span><span class="comment">   * @return Value to be returned by calling Node::send().</span></div>
+<div class="line"><a id="l00998" name="l00998"></a><span class="lineno">  998</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00999" name="l00999"></a><span class="lineno">  999</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a83ba2b4c39555afad67932ea6ed39bbe">node_send</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keywordtype">size_t</span> (<span class="keywordtype">size_t</span> max_data_size)&gt;&amp; snd_buf_feed_func,</div>
+<div class="line"><a id="l01000" name="l01000"></a><span class="lineno"> 1000</span>                   <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
+<div class="line"><a id="l01001" name="l01001"></a><span class="lineno"> 1001</span><span class="comment"></span> </div>
+<div class="line"><a id="l01002" name="l01002"></a><span class="lineno"> 1002</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01003" name="l01003"></a><span class="lineno"> 1003</span><span class="comment">   * Same as sync_send() but uses a #Fine_clock-based #Fine_duration non-template type for</span></div>
+<div class="line"><a id="l01004" name="l01004"></a><span class="lineno"> 1004</span><span class="comment">   * implementation convenience and to avoid code bloat to specify timeout.</span></div>
+<div class="line"><a id="l01005" name="l01005"></a><span class="lineno"> 1005</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01006" name="l01006"></a><span class="lineno"> 1006</span><span class="comment">   * @tparam Const_buffer_sequence</span></div>
+<div class="line"><a id="l01007" name="l01007"></a><span class="lineno"> 1007</span><span class="comment">   *         See sync_send().</span></div>
+<div class="line"><a id="l01008" name="l01008"></a><span class="lineno"> 1008</span><span class="comment">   * @param data</span></div>
+<div class="line"><a id="l01009" name="l01009"></a><span class="lineno"> 1009</span><span class="comment">   *        See sync_send().</span></div>
+<div class="line"><a id="l01010" name="l01010"></a><span class="lineno"> 1010</span><span class="comment">   * @param wait_until</span></div>
+<div class="line"><a id="l01011" name="l01011"></a><span class="lineno"> 1011</span><span class="comment">   *        See `sync_send(timeout)`.  This is the absolute time point corresponding to that.</span></div>
+<div class="line"><a id="l01012" name="l01012"></a><span class="lineno"> 1012</span><span class="comment">   *        `&quot;duration&lt;Rep, Period&gt;::max()&quot;` maps to the value `Fine_time_pt()` (Epoch) for this argument.</span></div>
+<div class="line"><a id="l01013" name="l01013"></a><span class="lineno"> 1013</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l01014" name="l01014"></a><span class="lineno"> 1014</span><span class="comment">   *        See sync_send().</span></div>
+<div class="line"><a id="l01015" name="l01015"></a><span class="lineno"> 1015</span><span class="comment">   * @return See sync_send().</span></div>
+<div class="line"><a id="l01016" name="l01016"></a><span class="lineno"> 1016</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01017" name="l01017"></a><span class="lineno"> 1017</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
+<div class="line"><a id="l01018" name="l01018"></a><span class="lineno"> 1018</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a3f1a802024549a59978a53343b09a86d">sync_send_impl</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until,</div>
+<div class="line"><a id="l01019" name="l01019"></a><span class="lineno"> 1019</span>                        <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
+<div class="line"><a id="l01020" name="l01020"></a><span class="lineno"> 1020</span><span class="comment"></span> </div>
+<div class="line"><a id="l01021" name="l01021"></a><span class="lineno"> 1021</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01022" name="l01022"></a><span class="lineno"> 1022</span><span class="comment">   * Helper similar to sync_send_impl() but for the `null_buffers` versions of `sync_send()`.</span></div>
+<div class="line"><a id="l01023" name="l01023"></a><span class="lineno"> 1023</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01024" name="l01024"></a><span class="lineno"> 1024</span><span class="comment">   * @param wait_until</span></div>
+<div class="line"><a id="l01025" name="l01025"></a><span class="lineno"> 1025</span><span class="comment">   *        See sync_send_impl().</span></div>
+<div class="line"><a id="l01026" name="l01026"></a><span class="lineno"> 1026</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l01027" name="l01027"></a><span class="lineno"> 1027</span><span class="comment">   *        See sync_send_impl().</span></div>
+<div class="line"><a id="l01028" name="l01028"></a><span class="lineno"> 1028</span><span class="comment">   * @return See `sync_send(null_buffers)`.  `true` if and only if Writable status successfuly reached in time.</span></div>
+<div class="line"><a id="l01029" name="l01029"></a><span class="lineno"> 1029</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01030" name="l01030"></a><span class="lineno"> 1030</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a15ba1d4af6d4e3fcab9534a307c00595">sync_send_reactor_pattern_impl</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
+<div class="line"><a id="l01031" name="l01031"></a><span class="lineno"> 1031</span><span class="comment"></span> </div>
+<div class="line"><a id="l01032" name="l01032"></a><span class="lineno"> 1032</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01033" name="l01033"></a><span class="lineno"> 1033</span><span class="comment">   * This is to sync_send() as node_send() is to send().</span></div>
+<div class="line"><a id="l01034" name="l01034"></a><span class="lineno"> 1034</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01035" name="l01035"></a><span class="lineno"> 1035</span><span class="comment">   * @param snd_buf_feed_func_or_empty</span></div>
+<div class="line"><a id="l01036" name="l01036"></a><span class="lineno"> 1036</span><span class="comment">   *        See node_send().  Additionally, if this is `.empty()` then `null_buffers` a/k/a &quot;reactor pattern&quot; mode is</span></div>
+<div class="line"><a id="l01037" name="l01037"></a><span class="lineno"> 1037</span><span class="comment">   *        engaged.</span></div>
+<div class="line"><a id="l01038" name="l01038"></a><span class="lineno"> 1038</span><span class="comment">   * @param wait_until</span></div>
+<div class="line"><a id="l01039" name="l01039"></a><span class="lineno"> 1039</span><span class="comment">   *        See sync_send_impl().</span></div>
+<div class="line"><a id="l01040" name="l01040"></a><span class="lineno"> 1040</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l01041" name="l01041"></a><span class="lineno"> 1041</span><span class="comment">   *        See sync_send().</span></div>
+<div class="line"><a id="l01042" name="l01042"></a><span class="lineno"> 1042</span><span class="comment">   * @return See sync_send().</span></div>
+<div class="line"><a id="l01043" name="l01043"></a><span class="lineno"> 1043</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01044" name="l01044"></a><span class="lineno"> 1044</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a34e2c7dfb5596269a6f86a716015f1a6">node_sync_send</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keywordtype">size_t</span> (<span class="keywordtype">size_t</span> max_data_size)&gt;&amp; snd_buf_feed_func_or_empty,</div>
+<div class="line"><a id="l01045" name="l01045"></a><span class="lineno"> 1045</span>                        <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until,</div>
+<div class="line"><a id="l01046" name="l01046"></a><span class="lineno"> 1046</span>                        <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
+<div class="line"><a id="l01047" name="l01047"></a><span class="lineno"> 1047</span><span class="comment"></span> </div>
+<div class="line"><a id="l01048" name="l01048"></a><span class="lineno"> 1048</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01049" name="l01049"></a><span class="lineno"> 1049</span><span class="comment">   * Non-template helper for template receive() that forwards the receive() logic to</span></div>
+<div class="line"><a id="l01050" name="l01050"></a><span class="lineno"> 1050</span><span class="comment">   * Node::receive().  Would be pointless to try to explain more here; see code and how it&#39;s used.</span></div>
+<div class="line"><a id="l01051" name="l01051"></a><span class="lineno"> 1051</span><span class="comment">   * Anyway, this has to be in this class.</span></div>
+<div class="line"><a id="l01052" name="l01052"></a><span class="lineno"> 1052</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01053" name="l01053"></a><span class="lineno"> 1053</span><span class="comment">   * @param rcv_buf_consume_func</span></div>
+<div class="line"><a id="l01054" name="l01054"></a><span class="lineno"> 1054</span><span class="comment">   *        Function that will perform and return `m_rcv_buf-&gt;consume(...)`.  See receive().</span></div>
+<div class="line"><a id="l01055" name="l01055"></a><span class="lineno"> 1055</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l01056" name="l01056"></a><span class="lineno"> 1056</span><span class="comment">   *        See receive().</span></div>
+<div class="line"><a id="l01057" name="l01057"></a><span class="lineno"> 1057</span><span class="comment">   * @return Value to be returned by calling Node::receive().</span></div>
+<div class="line"><a id="l01058" name="l01058"></a><span class="lineno"> 1058</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01059" name="l01059"></a><span class="lineno"> 1059</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#af3ac1b0b3c9b1c3a5ec246148595c657">node_receive</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keywordtype">size_t</span> ()&gt;&amp; rcv_buf_consume_func,</div>
+<div class="line"><a id="l01060" name="l01060"></a><span class="lineno"> 1060</span>                      <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
+<div class="line"><a id="l01061" name="l01061"></a><span class="lineno"> 1061</span><span class="comment"></span> </div>
+<div class="line"><a id="l01062" name="l01062"></a><span class="lineno"> 1062</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01063" name="l01063"></a><span class="lineno"> 1063</span><span class="comment">   * Same as sync_receive() but uses a #Fine_clock-based #Fine_duration non-template type</span></div>
+<div class="line"><a id="l01064" name="l01064"></a><span class="lineno"> 1064</span><span class="comment">   * for implementation convenience and to avoid code bloat to specify timeout.</span></div>
+<div class="line"><a id="l01065" name="l01065"></a><span class="lineno"> 1065</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01066" name="l01066"></a><span class="lineno"> 1066</span><span class="comment">   * @tparam Block_sequence</span></div>
+<div class="line"><a id="l01067" name="l01067"></a><span class="lineno"> 1067</span><span class="comment">   *         See sync_receive().</span></div>
+<div class="line"><a id="l01068" name="l01068"></a><span class="lineno"> 1068</span><span class="comment">   * @param target</span></div>
+<div class="line"><a id="l01069" name="l01069"></a><span class="lineno"> 1069</span><span class="comment">   *        See sync_receive().</span></div>
+<div class="line"><a id="l01070" name="l01070"></a><span class="lineno"> 1070</span><span class="comment">   * @param wait_until</span></div>
+<div class="line"><a id="l01071" name="l01071"></a><span class="lineno"> 1071</span><span class="comment">   *        See `sync_receive(timeout)`.  This is the absolute time point corresponding to that.</span></div>
+<div class="line"><a id="l01072" name="l01072"></a><span class="lineno"> 1072</span><span class="comment">   *        `&quot;duration&lt;Rep, Period&gt;::max()&quot;` maps to the value `Fine_time_pt()` (Epoch) for this argument.</span></div>
+<div class="line"><a id="l01073" name="l01073"></a><span class="lineno"> 1073</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l01074" name="l01074"></a><span class="lineno"> 1074</span><span class="comment">   *        See sync_receive().</span></div>
+<div class="line"><a id="l01075" name="l01075"></a><span class="lineno"> 1075</span><span class="comment">   * @return See sync_receive().</span></div>
+<div class="line"><a id="l01076" name="l01076"></a><span class="lineno"> 1076</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01077" name="l01077"></a><span class="lineno"> 1077</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
+<div class="line"><a id="l01078" name="l01078"></a><span class="lineno"> 1078</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#ad29f61b9885b10ddc3846cdae0560518">sync_receive_impl</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target,</div>
+<div class="line"><a id="l01079" name="l01079"></a><span class="lineno"> 1079</span>                           <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
+<div class="line"><a id="l01080" name="l01080"></a><span class="lineno"> 1080</span><span class="comment"></span> </div>
+<div class="line"><a id="l01081" name="l01081"></a><span class="lineno"> 1081</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01082" name="l01082"></a><span class="lineno"> 1082</span><span class="comment">   * Helper similar to sync_receive_impl() but for the `null_buffers` versions of `sync_receive()`.</span></div>
+<div class="line"><a id="l01083" name="l01083"></a><span class="lineno"> 1083</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01084" name="l01084"></a><span class="lineno"> 1084</span><span class="comment">   * @param wait_until</span></div>
+<div class="line"><a id="l01085" name="l01085"></a><span class="lineno"> 1085</span><span class="comment">   *        See sync_receive_impl().</span></div>
+<div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l01087" name="l01087"></a><span class="lineno"> 1087</span><span class="comment">   *        See sync_receive_impl().</span></div>
+<div class="line"><a id="l01088" name="l01088"></a><span class="lineno"> 1088</span><span class="comment">   * @return See `sync_receive(null_buffers)`.  `true` if and only if Readable status successfuly reached in time.</span></div>
+<div class="line"><a id="l01089" name="l01089"></a><span class="lineno"> 1089</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01090" name="l01090"></a><span class="lineno"> 1090</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a1a2eccfa314a397c12259f414ef6798c">sync_receive_reactor_pattern_impl</a>(<span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
+<div class="line"><a id="l01091" name="l01091"></a><span class="lineno"> 1091</span><span class="comment"></span> </div>
+<div class="line"><a id="l01092" name="l01092"></a><span class="lineno"> 1092</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01093" name="l01093"></a><span class="lineno"> 1093</span><span class="comment">   * This is to sync_receive() as node_receive() is to receive().</span></div>
+<div class="line"><a id="l01094" name="l01094"></a><span class="lineno"> 1094</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01095" name="l01095"></a><span class="lineno"> 1095</span><span class="comment">   * @param rcv_buf_consume_func_or_empty</span></div>
+<div class="line"><a id="l01096" name="l01096"></a><span class="lineno"> 1096</span><span class="comment">   *        See node_receive().  Additionally, if this is `.empty()` then `null_buffers` a/k/a &quot;reactor pattern&quot; mode is</span></div>
+<div class="line"><a id="l01097" name="l01097"></a><span class="lineno"> 1097</span><span class="comment">   *        engaged.</span></div>
+<div class="line"><a id="l01098" name="l01098"></a><span class="lineno"> 1098</span><span class="comment">   * @param wait_until</span></div>
+<div class="line"><a id="l01099" name="l01099"></a><span class="lineno"> 1099</span><span class="comment">   *        See sync_receive_impl().</span></div>
+<div class="line"><a id="l01100" name="l01100"></a><span class="lineno"> 1100</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l01101" name="l01101"></a><span class="lineno"> 1101</span><span class="comment">   *        See sync_receive().</span></div>
+<div class="line"><a id="l01102" name="l01102"></a><span class="lineno"> 1102</span><span class="comment">   * @return See sync_receive().</span></div>
+<div class="line"><a id="l01103" name="l01103"></a><span class="lineno"> 1103</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01104" name="l01104"></a><span class="lineno"> 1104</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a8abde92d5189bf2a058fe8741789f814">node_sync_receive</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keywordtype">size_t</span> ()&gt;&amp; rcv_buf_consume_func_or_empty,</div>
+<div class="line"><a id="l01105" name="l01105"></a><span class="lineno"> 1105</span>                           <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until,</div>
+<div class="line"><a id="l01106" name="l01106"></a><span class="lineno"> 1106</span>                           <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code);</div>
+<div class="line"><a id="l01107" name="l01107"></a><span class="lineno"> 1107</span><span class="comment"></span> </div>
+<div class="line"><a id="l01108" name="l01108"></a><span class="lineno"> 1108</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01109" name="l01109"></a><span class="lineno"> 1109</span><span class="comment">   * Analogous to Node::opt() but for per-socket options.  See that method.</span></div>
+<div class="line"><a id="l01110" name="l01110"></a><span class="lineno"> 1110</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01111" name="l01111"></a><span class="lineno"> 1111</span><span class="comment">   * Do NOT read option values without opt().</span></div>
+<div class="line"><a id="l01112" name="l01112"></a><span class="lineno"> 1112</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01113" name="l01113"></a><span class="lineno"> 1113</span><span class="comment">   * @tparam Opt_type</span></div>
+<div class="line"><a id="l01114" name="l01114"></a><span class="lineno"> 1114</span><span class="comment">   *         The type of the option data member.</span></div>
+<div class="line"><a id="l01115" name="l01115"></a><span class="lineno"> 1115</span><span class="comment">   * @param opt_val_ref</span></div>
+<div class="line"><a id="l01116" name="l01116"></a><span class="lineno"> 1116</span><span class="comment">   *        A reference (important!) to the value you want; this may be either a data member of</span></div>
+<div class="line"><a id="l01117" name="l01117"></a><span class="lineno"> 1117</span><span class="comment">   *        this-&gt;m_opts or the entire this-&gt;m_opts itself.</span></div>
+<div class="line"><a id="l01118" name="l01118"></a><span class="lineno"> 1118</span><span class="comment">   * @return A copy of the value at the given reference.</span></div>
+<div class="line"><a id="l01119" name="l01119"></a><span class="lineno"> 1119</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01120" name="l01120"></a><span class="lineno"> 1120</span>  <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Opt_type&gt;</div>
+<div class="line"><a id="l01121" name="l01121"></a><span class="lineno"> 1121</span>  Opt_type <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#accf6d724ed1f145716ae3d4567f582f3">opt</a>(<span class="keyword">const</span> Opt_type&amp; opt_val_ref) <span class="keyword">const</span>;</div>
+<div class="line"><a id="l01122" name="l01122"></a><span class="lineno"> 1122</span><span class="comment"></span> </div>
+<div class="line"><a id="l01123" name="l01123"></a><span class="lineno"> 1123</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01124" name="l01124"></a><span class="lineno"> 1124</span><span class="comment">   * Returns the smallest multiple of max_block_size() that is &gt;= the given option value, optionally</span></div>
+<div class="line"><a id="l01125" name="l01125"></a><span class="lineno"> 1125</span><span class="comment">   * first inflated by a certain %.  The intended use case is to obtain a Send of Receive buffer max</span></div>
+<div class="line"><a id="l01126" name="l01126"></a><span class="lineno"> 1126</span><span class="comment">   * size that is about equal to the user-specified (or otherwise obtained) value, in bytes, but is</span></div>
+<div class="line"><a id="l01127" name="l01127"></a><span class="lineno"> 1127</span><span class="comment">   * a multiple of max-block-size -- to prevent fragmenting max-block-size-sized chunks of data unnecessarily -- and</span></div>
+<div class="line"><a id="l01128" name="l01128"></a><span class="lineno"> 1128</span><span class="comment">   * to possibly inflate that value by a certain percentage for subtle flow control reasons.</span></div>
+<div class="line"><a id="l01129" name="l01129"></a><span class="lineno"> 1129</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01130" name="l01130"></a><span class="lineno"> 1130</span><span class="comment">   * @param opt_val_ref</span></div>
+<div class="line"><a id="l01131" name="l01131"></a><span class="lineno"> 1131</span><span class="comment">   *        A reference to a `size_t`-sized socket option, as would be passed to opt().  See opt().</span></div>
+<div class="line"><a id="l01132" name="l01132"></a><span class="lineno"> 1132</span><span class="comment">   *        This is the starting value.</span></div>
+<div class="line"><a id="l01133" name="l01133"></a><span class="lineno"> 1133</span><span class="comment">   * @param inflate_pct_val_ptr</span></div>
+<div class="line"><a id="l01134" name="l01134"></a><span class="lineno"> 1134</span><span class="comment">   *        A pointer to an `unsigned int`-sized socket option, as would be passed to opt().  See</span></div>
+<div class="line"><a id="l01135" name="l01135"></a><span class="lineno"> 1135</span><span class="comment">   *        opt().  This is the % by which to inflate opt_val_ref before rounding up to nearest</span></div>
+<div class="line"><a id="l01136" name="l01136"></a><span class="lineno"> 1136</span><span class="comment">   *        max_block_size() multiple.  If null, the % is assumed to be 0.</span></div>
+<div class="line"><a id="l01137" name="l01137"></a><span class="lineno"> 1137</span><span class="comment">   * @return See above.</span></div>
+<div class="line"><a id="l01138" name="l01138"></a><span class="lineno"> 1138</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01139" name="l01139"></a><span class="lineno"> 1139</span>  <span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a102b78eaac9c8add512238ec5f26fcfc">max_block_size_multiple</a>(<span class="keyword">const</span> <span class="keywordtype">size_t</span>&amp; opt_val_ref,</div>
+<div class="line"><a id="l01140" name="l01140"></a><span class="lineno"> 1140</span>                                 <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>* inflate_pct_val_ptr = 0) <span class="keyword">const</span>;</div>
+<div class="line"><a id="l01141" name="l01141"></a><span class="lineno"> 1141</span><span class="comment"></span> </div>
+<div class="line"><a id="l01142" name="l01142"></a><span class="lineno"> 1142</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01143" name="l01143"></a><span class="lineno"> 1143</span><span class="comment">   * Whether retransmission is enabled on this connection.  Short-hand for appropriate opt() call.</span></div>
+<div class="line"><a id="l01144" name="l01144"></a><span class="lineno"> 1144</span><span class="comment">   * Note this always returns the same value for a given object.</span></div>
+<div class="line"><a id="l01145" name="l01145"></a><span class="lineno"> 1145</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01146" name="l01146"></a><span class="lineno"> 1146</span><span class="comment">   * @return Ditto.</span></div>
+<div class="line"><a id="l01147" name="l01147"></a><span class="lineno"> 1147</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01148" name="l01148"></a><span class="lineno"> 1148</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>() <span class="keyword">const</span>;</div>
+<div class="line"><a id="l01149" name="l01149"></a><span class="lineno"> 1149</span><span class="comment"></span> </div>
+<div class="line"><a id="l01150" name="l01150"></a><span class="lineno"> 1150</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01151" name="l01151"></a><span class="lineno"> 1151</span><span class="comment">   * Helper that is equivalent to Node::ensure_sock_open(this, err_code).  Used by templated</span></div>
+<div class="line"><a id="l01152" name="l01152"></a><span class="lineno"> 1152</span><span class="comment">   * methods which must be defined in this header file, which means they cannot access Node members</span></div>
+<div class="line"><a id="l01153" name="l01153"></a><span class="lineno"> 1153</span><span class="comment">   * directly, as Node is an incomplete type.</span></div>
+<div class="line"><a id="l01154" name="l01154"></a><span class="lineno"> 1154</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01155" name="l01155"></a><span class="lineno"> 1155</span><span class="comment">   * @param err_code</span></div>
+<div class="line"><a id="l01156" name="l01156"></a><span class="lineno"> 1156</span><span class="comment">   *        See Node::ensure_sock_open().</span></div>
+<div class="line"><a id="l01157" name="l01157"></a><span class="lineno"> 1157</span><span class="comment">   * @return See Node::ensure_sock_open().</span></div>
+<div class="line"><a id="l01158" name="l01158"></a><span class="lineno"> 1158</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01159" name="l01159"></a><span class="lineno"> 1159</span>  <span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#ac7cbefb99ae173bd5f355f5d082564ce">ensure_open</a>(<a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code) <span class="keyword">const</span>;</div>
+<div class="line"><a id="l01160" name="l01160"></a><span class="lineno"> 1160</span><span class="comment"></span> </div>
+<div class="line"><a id="l01161" name="l01161"></a><span class="lineno"> 1161</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01162" name="l01162"></a><span class="lineno"> 1162</span><span class="comment">   * Helper that, given a byte count, returns a string with that byte count and the number of</span></div>
+<div class="line"><a id="l01163" name="l01163"></a><span class="lineno"> 1163</span><span class="comment">   * max_block_size()-size blocks that can fit within it (rounded down).</span></div>
+<div class="line"><a id="l01164" name="l01164"></a><span class="lineno"> 1164</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01165" name="l01165"></a><span class="lineno"> 1165</span><span class="comment">   * @param bytes</span></div>
+<div class="line"><a id="l01166" name="l01166"></a><span class="lineno"> 1166</span><span class="comment">   * @return See above.</span></div>
+<div class="line"><a id="l01167" name="l01167"></a><span class="lineno"> 1167</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01168" name="l01168"></a><span class="lineno"> 1168</span>  std::string <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#acd100a3c02fad5d9e00fcbc1f645f116">bytes_blocks_str</a>(<span class="keywordtype">size_t</span> bytes) <span class="keyword">const</span>;</div>
+<div class="line"><a id="l01169" name="l01169"></a><span class="lineno"> 1169</span> </div>
+<div class="line"><a id="l01170" name="l01170"></a><span class="lineno"> 1170</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l01171" name="l01171"></a><span class="lineno"> 1171</span><span class="comment"></span> </div>
+<div class="line"><a id="l01172" name="l01172"></a><span class="lineno"> 1172</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01173" name="l01173"></a><span class="lineno"> 1173</span><span class="comment">   * This socket&#39;s per-socket set of options.  Initialized at construction; can be subsequently</span></div>
+<div class="line"><a id="l01174" name="l01174"></a><span class="lineno"> 1174</span><span class="comment">   * modified by set_options(), although only the dynamic members of this may be modified.</span></div>
+<div class="line"><a id="l01175" name="l01175"></a><span class="lineno"> 1175</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01176" name="l01176"></a><span class="lineno"> 1176</span><span class="comment">   * Accessed from thread W and user thread U != W.  Protected by #m_opts_mutex.  When reading, do</span></div>
+<div class="line"><a id="l01177" name="l01177"></a><span class="lineno"> 1177</span><span class="comment">   * NOT access without locking (which is encapsulated in opt()).</span></div>
+<div class="line"><a id="l01178" name="l01178"></a><span class="lineno"> 1178</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01179" name="l01179"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad59c09f34003873a3c207cc590236773"> 1179</a></span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__options.html">Peer_socket_options</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ad59c09f34003873a3c207cc590236773">m_opts</a>;</div>
+<div class="line"><a id="l01180" name="l01180"></a><span class="lineno"> 1180</span><span class="comment"></span> </div>
+<div class="line"><a id="l01181" name="l01181"></a><span class="lineno"> 1181</span><span class="comment">  /// The mutex protecting #m_opts.</span></div>
+<div class="line"><a id="l01182" name="l01182"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a"> 1182</a></span><span class="comment"></span>  <span class="keyword">mutable</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1e1379f9a0269d6990f26bf1da045657">Options_mutex</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a">m_opts_mutex</a>;</div>
+<div class="line"><a id="l01183" name="l01183"></a><span class="lineno"> 1183</span><span class="comment"></span> </div>
+<div class="line"><a id="l01184" name="l01184"></a><span class="lineno"> 1184</span><span class="comment">  /// `true` if we connect() to server; `false` if we are to be/are `accept()`ed.  Should be set once and not modified.</span></div>
+<div class="line"><a id="l01185" name="l01185"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a288ccfc742d6982c4059d82500397874"> 1185</a></span><span class="comment"></span>  <span class="keywordtype">bool</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a288ccfc742d6982c4059d82500397874">m_active_connect</a>;</div>
+<div class="line"><a id="l01186" name="l01186"></a><span class="lineno"> 1186</span><span class="comment"></span> </div>
+<div class="line"><a id="l01187" name="l01187"></a><span class="lineno"> 1187</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01188" name="l01188"></a><span class="lineno"> 1188</span><span class="comment">   * See state().  Should be set before user gets access to `*this`.  Must not be modified by non-W threads after that.</span></div>
+<div class="line"><a id="l01189" name="l01189"></a><span class="lineno"> 1189</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01190" name="l01190"></a><span class="lineno"> 1190</span><span class="comment">   * Accessed from thread W and user threads U != W (in state() and others).  Must be protected</span></div>
+<div class="line"><a id="l01191" name="l01191"></a><span class="lineno"> 1191</span><span class="comment">   * by mutex.</span></div>
+<div class="line"><a id="l01192" name="l01192"></a><span class="lineno"> 1192</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01193" name="l01193"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a05a765055fd54412c63e57e43697f1bc"> 1193</a></span>  <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">State</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a05a765055fd54412c63e57e43697f1bc">m_state</a>;</div>
+<div class="line"><a id="l01194" name="l01194"></a><span class="lineno"> 1194</span><span class="comment"></span> </div>
+<div class="line"><a id="l01195" name="l01195"></a><span class="lineno"> 1195</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01196" name="l01196"></a><span class="lineno"> 1196</span><span class="comment">   * See state().  Should be set before user gets access to `*this`.  Must not be modified by non-W</span></div>
+<div class="line"><a id="l01197" name="l01197"></a><span class="lineno"> 1197</span><span class="comment">   * threads after that.</span></div>
+<div class="line"><a id="l01198" name="l01198"></a><span class="lineno"> 1198</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01199" name="l01199"></a><span class="lineno"> 1199</span><span class="comment">   * Accessed from thread W and user threads U != W (in state() and others).  Must be protected by</span></div>
+<div class="line"><a id="l01200" name="l01200"></a><span class="lineno"> 1200</span><span class="comment">   * mutex.</span></div>
+<div class="line"><a id="l01201" name="l01201"></a><span class="lineno"> 1201</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01202" name="l01202"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ae5d47460784cc20c9e44237edffaac95"> 1202</a></span>  <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">Open_sub_state</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ae5d47460784cc20c9e44237edffaac95">m_open_sub_state</a>;</div>
+<div class="line"><a id="l01203" name="l01203"></a><span class="lineno"> 1203</span><span class="comment"></span> </div>
+<div class="line"><a id="l01204" name="l01204"></a><span class="lineno"> 1204</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01205" name="l01205"></a><span class="lineno"> 1205</span><span class="comment">   * See node().  Should be set before user gets access to `*this` and not changed, except to null when</span></div>
+<div class="line"><a id="l01206" name="l01206"></a><span class="lineno"> 1206</span><span class="comment">   * state is State::S_CLOSED.  Must not be modified by non-W threads.</span></div>
+<div class="line"><a id="l01207" name="l01207"></a><span class="lineno"> 1207</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01208" name="l01208"></a><span class="lineno"> 1208</span><span class="comment">   * Invariant: `x-&gt;node() == y` if and only if `y-&gt;m_socks` contains `x`; otherwise `!x-&gt;node()`.</span></div>
+<div class="line"><a id="l01209" name="l01209"></a><span class="lineno"> 1209</span><span class="comment">   * The invariant must hold by the end of the execution of any thread W boost.asio handler (but</span></div>
+<div class="line"><a id="l01210" name="l01210"></a><span class="lineno"> 1210</span><span class="comment">   * not necessarily at all points within that handler, or generally).</span></div>
+<div class="line"><a id="l01211" name="l01211"></a><span class="lineno"> 1211</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01212" name="l01212"></a><span class="lineno"> 1212</span><span class="comment">   * Accessed from thread W and user threads U != W (in node() and others).  Must be protected by</span></div>
+<div class="line"><a id="l01213" name="l01213"></a><span class="lineno"> 1213</span><span class="comment">   * mutex.</span></div>
+<div class="line"><a id="l01214" name="l01214"></a><span class="lineno"> 1214</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01215" name="l01215"></a><span class="lineno"> 1215</span><span class="comment">   * @todo `boost::weak_ptr&lt;Node&gt;` would be ideal for this, but of course then Node would have to</span></div>
+<div class="line"><a id="l01216" name="l01216"></a><span class="lineno"> 1216</span><span class="comment">   * (only?) be available via shared_ptr&lt;&gt;.</span></div>
+<div class="line"><a id="l01217" name="l01217"></a><span class="lineno"> 1217</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01218" name="l01218"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a36ab27af6886c7699f9965a5eb296cd6"> 1218</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Node.html">Node</a>* <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a36ab27af6886c7699f9965a5eb296cd6">m_node</a>;</div>
+<div class="line"><a id="l01219" name="l01219"></a><span class="lineno"> 1219</span><span class="comment"></span> </div>
+<div class="line"><a id="l01220" name="l01220"></a><span class="lineno"> 1220</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01221" name="l01221"></a><span class="lineno"> 1221</span><span class="comment">   * For sockets that come a Server_socket, this is the inverse of Server_socket::m_connecting_socks: it is</span></div>
+<div class="line"><a id="l01222" name="l01222"></a><span class="lineno"> 1222</span><span class="comment">   * the Server_socket from which this Peer_socket will be Server_socket::accept()ed (if that succeeds); or null if</span></div>
+<div class="line"><a id="l01223" name="l01223"></a><span class="lineno"> 1223</span><span class="comment">   * this is an actively-connecting Peer_socket or has already been `accept()`ed.</span></div>
+<div class="line"><a id="l01224" name="l01224"></a><span class="lineno"> 1224</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01225" name="l01225"></a><span class="lineno"> 1225</span><span class="comment">   * More formally, this is null if #m_active_connect; null if not the case but already accept()ed; and otherwise:</span></div>
+<div class="line"><a id="l01226" name="l01226"></a><span class="lineno"> 1226</span><span class="comment">   * `((y-&gt;m_connecting_socks contains x) || (y-&gt;m_unaccepted_socks contains x))` if and only if</span></div>
+<div class="line"><a id="l01227" name="l01227"></a><span class="lineno"> 1227</span><span class="comment">   * `x-&gt;m_originating_serv == y`.  That is, for a socket in state Int_state::S_SYN_RCVD, or in state</span></div>
+<div class="line"><a id="l01228" name="l01228"></a><span class="lineno"> 1228</span><span class="comment">   * Int_state::S_ESTABLISHED, but before being accept()ed by the user, this is the server socket that spawned this</span></div>
+<div class="line"><a id="l01229" name="l01229"></a><span class="lineno"> 1229</span><span class="comment">   * peer socket.</span></div>
+<div class="line"><a id="l01230" name="l01230"></a><span class="lineno"> 1230</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01231" name="l01231"></a><span class="lineno"> 1231</span><span class="comment">   * ### Thread safety ###</span></div>
+<div class="line"><a id="l01232" name="l01232"></a><span class="lineno"> 1232</span><span class="comment">   * This can be write-accessed simultaneously by thread W (e.g., when closing a</span></div>
+<div class="line"><a id="l01233" name="l01233"></a><span class="lineno"> 1233</span><span class="comment">   * socket before it is accepted) and a user thread U != W (in Server_socket::accept()).  It is</span></div>
+<div class="line"><a id="l01234" name="l01234"></a><span class="lineno"> 1234</span><span class="comment">   * thus protected by a mutex -- but it&#39;s Server_socket::m_mutex, not Peer_socket::m_mutex.  I</span></div>
+<div class="line"><a id="l01235" name="l01235"></a><span class="lineno"> 1235</span><span class="comment">   * know it&#39;s weird, but it makes sense.  Basically Server_socket::m_unaccepted_socks and</span></div>
+<div class="line"><a id="l01236" name="l01236"></a><span class="lineno"> 1236</span><span class="comment">   * Server_socket::m_originating_serv -- for each element of `m_unaccepted_socks` -- are modified together</span></div>
+<div class="line"><a id="l01237" name="l01237"></a><span class="lineno"> 1237</span><span class="comment">   * in a synchronized way.</span></div>
+<div class="line"><a id="l01238" name="l01238"></a><span class="lineno"> 1238</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01239" name="l01239"></a><span class="lineno"> 1239</span><span class="comment">   * @see Server_socket::m_connecting_socks and Server_socket::m_unaccepted_socks for the closely</span></div>
+<div class="line"><a id="l01240" name="l01240"></a><span class="lineno"> 1240</span><span class="comment">   *      related inverse.</span></div>
+<div class="line"><a id="l01241" name="l01241"></a><span class="lineno"> 1241</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01242" name="l01242"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a5629d810d2c7252eaa2243e076dde83f"> 1242</a></span>  <a class="code hl_typedef" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc">Server_socket::Ptr</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a5629d810d2c7252eaa2243e076dde83f">m_originating_serv</a>;</div>
+<div class="line"><a id="l01243" name="l01243"></a><span class="lineno"> 1243</span><span class="comment"></span> </div>
+<div class="line"><a id="l01244" name="l01244"></a><span class="lineno"> 1244</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01245" name="l01245"></a><span class="lineno"> 1245</span><span class="comment">   * The Receive buffer; Node feeds data at the back; user consumes data at the front.  Contains</span></div>
+<div class="line"><a id="l01246" name="l01246"></a><span class="lineno"> 1246</span><span class="comment">   * application-layer data received from the other side, to be read by user via receive() and</span></div>
+<div class="line"><a id="l01247" name="l01247"></a><span class="lineno"> 1247</span><span class="comment">   * similar.</span></div>
+<div class="line"><a id="l01248" name="l01248"></a><span class="lineno"> 1248</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01249" name="l01249"></a><span class="lineno"> 1249</span><span class="comment">   * A maximum cumulative byte count is maintained.  If data are received that would exceed this max</span></div>
+<div class="line"><a id="l01250" name="l01250"></a><span class="lineno"> 1250</span><span class="comment">   * (i.e., the user is not retrieving the data fast enough to keep up), these data are dropped (and</span></div>
+<div class="line"><a id="l01251" name="l01251"></a><span class="lineno"> 1251</span><span class="comment">   * if we use ACKs would be eventually treated as dropped by the other side).</span></div>
+<div class="line"><a id="l01252" name="l01252"></a><span class="lineno"> 1252</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01253" name="l01253"></a><span class="lineno"> 1253</span><span class="comment">   * Note that this is a high-level structure, near the application layer.  This does not store any</span></div>
+<div class="line"><a id="l01254" name="l01254"></a><span class="lineno"> 1254</span><span class="comment">   * metadata, like sequence numbers, or data not ready to be consumed by the user (such as</span></div>
+<div class="line"><a id="l01255" name="l01255"></a><span class="lineno"> 1255</span><span class="comment">   * out-of-order packets, if we implement that).  Such packets and data should be stored elsewhere.</span></div>
+<div class="line"><a id="l01256" name="l01256"></a><span class="lineno"> 1256</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01257" name="l01257"></a><span class="lineno"> 1257</span><span class="comment">   * ### Thread safety ###</span></div>
+<div class="line"><a id="l01258" name="l01258"></a><span class="lineno"> 1258</span><span class="comment">   * This can be write-accessed simultaneously by thread W (when receiving by Node)</span></div>
+<div class="line"><a id="l01259" name="l01259"></a><span class="lineno"> 1259</span><span class="comment">   * and a user thread U != W (in receive(), etc.).  It is thus protected by a mutex.</span></div>
+<div class="line"><a id="l01260" name="l01260"></a><span class="lineno"> 1260</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01261" name="l01261"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3"> 1261</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Socket__buffer.html">Socket_buffer</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3">m_rcv_buf</a>;</div>
+<div class="line"><a id="l01262" name="l01262"></a><span class="lineno"> 1262</span><span class="comment"></span> </div>
+<div class="line"><a id="l01263" name="l01263"></a><span class="lineno"> 1263</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01264" name="l01264"></a><span class="lineno"> 1264</span><span class="comment">   * The Send buffer; user feeds data at the back; Node consumes data at the front.  Contains</span></div>
+<div class="line"><a id="l01265" name="l01265"></a><span class="lineno"> 1265</span><span class="comment">   * application-layer data to be sent to the other side as supplied by user via send() and friends.</span></div>
+<div class="line"><a id="l01266" name="l01266"></a><span class="lineno"> 1266</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01267" name="l01267"></a><span class="lineno"> 1267</span><span class="comment">   * A maximum cumulative byte count is maintained.  If data are supplied that would exceed</span></div>
+<div class="line"><a id="l01268" name="l01268"></a><span class="lineno"> 1268</span><span class="comment">   * this max (i.e., the Node is not sending the data fast enough to keep up), send() will</span></div>
+<div class="line"><a id="l01269" name="l01269"></a><span class="lineno"> 1269</span><span class="comment">   * inform the caller that fewer bytes than intended have been buffered.  Typically this happens if</span></div>
+<div class="line"><a id="l01270" name="l01270"></a><span class="lineno"> 1270</span><span class="comment">   * the congestion control window is full, so data are getting buffered in #m_snd_buf instead of</span></div>
+<div class="line"><a id="l01271" name="l01271"></a><span class="lineno"> 1271</span><span class="comment">   * being immediately consumed and sent.</span></div>
+<div class="line"><a id="l01272" name="l01272"></a><span class="lineno"> 1272</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01273" name="l01273"></a><span class="lineno"> 1273</span><span class="comment">   * Note that this is a high-level structure, near the application layer.  This does not store any</span></div>
+<div class="line"><a id="l01274" name="l01274"></a><span class="lineno"> 1274</span><span class="comment">   * metadata, like sequence numbers, or data not ready to be consumed by the user (such as</span></div>
+<div class="line"><a id="l01275" name="l01275"></a><span class="lineno"> 1275</span><span class="comment">   * out-of-order packets, if we implement that).  Such packets and data should be stored elsewhere.</span></div>
+<div class="line"><a id="l01276" name="l01276"></a><span class="lineno"> 1276</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01277" name="l01277"></a><span class="lineno"> 1277</span><span class="comment">   * Thread safety: Analogous to #m_rcv_buf.</span></div>
+<div class="line"><a id="l01278" name="l01278"></a><span class="lineno"> 1278</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01279" name="l01279"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a993edf95f6bce2e57e7111e42533dc74"> 1279</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Socket__buffer.html">Socket_buffer</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a993edf95f6bce2e57e7111e42533dc74">m_snd_buf</a>;</div>
+<div class="line"><a id="l01280" name="l01280"></a><span class="lineno"> 1280</span><span class="comment"></span> </div>
+<div class="line"><a id="l01281" name="l01281"></a><span class="lineno"> 1281</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01282" name="l01282"></a><span class="lineno"> 1282</span><span class="comment">   * The #Error_code causing disconnection (if one has occurred or is occurring)</span></div>
+<div class="line"><a id="l01283" name="l01283"></a><span class="lineno"> 1283</span><span class="comment">   * on this socket; otherwise a clear (success) #Error_code.  This starts as success</span></div>
+<div class="line"><a id="l01284" name="l01284"></a><span class="lineno"> 1284</span><span class="comment">   * and may move to one non-success value and then never change after that.  Graceful connection</span></div>
+<div class="line"><a id="l01285" name="l01285"></a><span class="lineno"> 1285</span><span class="comment">   * termination is (unlike in BSD sockets, where this is indicated with receive() returning 0, not an</span></div>
+<div class="line"><a id="l01286" name="l01286"></a><span class="lineno"> 1286</span><span class="comment">   * error) indeed counted as a non-success value for #m_disconnect_cause.</span></div>
+<div class="line"><a id="l01287" name="l01287"></a><span class="lineno"> 1287</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01288" name="l01288"></a><span class="lineno"> 1288</span><span class="comment">   * Exception: if, during graceful close, the connection must be closed abruptly (due to error,</span></div>
+<div class="line"><a id="l01289" name="l01289"></a><span class="lineno"> 1289</span><span class="comment">   * including error::Code::S_USER_CLOSED_ABRUPTLY), #m_disconnect_cause may change a second time (from &quot;graceful close&quot;</span></div>
+<div class="line"><a id="l01290" name="l01290"></a><span class="lineno"> 1290</span><span class="comment">   * to &quot;abrupt closure&quot;).</span></div>
+<div class="line"><a id="l01291" name="l01291"></a><span class="lineno"> 1291</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01292" name="l01292"></a><span class="lineno"> 1292</span><span class="comment">   * As in TCP net-stacks, one cannot recover from a transmission error or termination on the socket</span></div>
+<div class="line"><a id="l01293" name="l01293"></a><span class="lineno"> 1293</span><span class="comment">   * (fake &quot;error&quot; `EWOULDBLOCK`/`EAGAIN` excepted), which is why this can only go success -&gt;</span></div>
+<div class="line"><a id="l01294" name="l01294"></a><span class="lineno"> 1294</span><span class="comment">   * non-success and never change after that.</span></div>
+<div class="line"><a id="l01295" name="l01295"></a><span class="lineno"> 1295</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01296" name="l01296"></a><span class="lineno"> 1296</span><span class="comment">   * How to report this to the user: attempting to `*receive()` when not Readable while</span></div>
+<div class="line"><a id="l01297" name="l01297"></a><span class="lineno"> 1297</span><span class="comment">   * #m_disconnect_cause is not success =&gt; `*receive()` returns this #Error_code to the user; and</span></div>
+<div class="line"><a id="l01298" name="l01298"></a><span class="lineno"> 1298</span><span class="comment">   * similarly for `*send()` and Writable.</span></div>
+<div class="line"><a id="l01299" name="l01299"></a><span class="lineno"> 1299</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01300" name="l01300"></a><span class="lineno"> 1300</span><span class="comment">   * I emphasize that this should happen only after Receive buffer has been emptied; otherwise user</span></div>
+<div class="line"><a id="l01301" name="l01301"></a><span class="lineno"> 1301</span><span class="comment">   * will not be able to read queued up received data after the Node internally detects connection</span></div>
+<div class="line"><a id="l01302" name="l01302"></a><span class="lineno"> 1302</span><span class="comment">   * termination.  By the same token, if the Node can still reasonably send data to the other side,</span></div>
+<div class="line"><a id="l01303" name="l01303"></a><span class="lineno"> 1303</span><span class="comment">   * and Send buffer is not empty, and #m_disconnect_cause is not success, the Node should only halt</span></div>
+<div class="line"><a id="l01304" name="l01304"></a><span class="lineno"> 1304</span><span class="comment">   * the packet sending once Send buffer has been emptied.</span></div>
+<div class="line"><a id="l01305" name="l01305"></a><span class="lineno"> 1305</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01306" name="l01306"></a><span class="lineno"> 1306</span><span class="comment">   * This should be success in all states except State::S_CLOSED and</span></div>
+<div class="line"><a id="l01307" name="l01307"></a><span class="lineno"> 1307</span><span class="comment">   * State::S_OPEN + Open_sub_state::S_DISCONNECTING.</span></div>
+<div class="line"><a id="l01308" name="l01308"></a><span class="lineno"> 1308</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01309" name="l01309"></a><span class="lineno"> 1309</span><span class="comment">   * ### Thread safety ###</span></div>
+<div class="line"><a id="l01310" name="l01310"></a><span class="lineno"> 1310</span><span class="comment">   * Since user threads will access this at least via receive() and send(), while</span></div>
+<div class="line"><a id="l01311" name="l01311"></a><span class="lineno"> 1311</span><span class="comment">   * thread W may set it having detected disconnection, this must be protected by a mutex.</span></div>
+<div class="line"><a id="l01312" name="l01312"></a><span class="lineno"> 1312</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01313" name="l01313"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a4fb8e8df98efa023e8bd4bd825475a18"> 1313</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a4fb8e8df98efa023e8bd4bd825475a18">m_disconnect_cause</a>;</div>
+<div class="line"><a id="l01314" name="l01314"></a><span class="lineno"> 1314</span><span class="comment"></span> </div>
+<div class="line"><a id="l01315" name="l01315"></a><span class="lineno"> 1315</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01316" name="l01316"></a><span class="lineno"> 1316</span><span class="comment">   * If `!m_active_connect`, this contains the serialized metadata that the user supplied on</span></div>
+<div class="line"><a id="l01317" name="l01317"></a><span class="lineno"> 1317</span><span class="comment">   * the other side when initiating the connect; otherwise this is the serialized metadata that the user</span></div>
+<div class="line"><a id="l01318" name="l01318"></a><span class="lineno"> 1318</span><span class="comment">   * supplied on this side when initiating the connect.  In either case (though obviously more</span></div>
+<div class="line"><a id="l01319" name="l01319"></a><span class="lineno"> 1319</span><span class="comment">   * useful in the `!m_active_connect` case) it can be obtained via get_connect_metadata().</span></div>
+<div class="line"><a id="l01320" name="l01320"></a><span class="lineno"> 1320</span><span class="comment">   * In the `m_active_connect` case, this is also needed if we must re-send the original SYN</span></div>
+<div class="line"><a id="l01321" name="l01321"></a><span class="lineno"> 1321</span><span class="comment">   * (retransmission).</span></div>
+<div class="line"><a id="l01322" name="l01322"></a><span class="lineno"> 1322</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01323" name="l01323"></a><span class="lineno"> 1323</span><span class="comment">   * ### Thread safety ###</span></div>
+<div class="line"><a id="l01324" name="l01324"></a><span class="lineno"> 1324</span><span class="comment">   * Same as #m_snd_buf and #m_rcv_buf (protected by #m_mutex).  This would not be</span></div>
+<div class="line"><a id="l01325" name="l01325"></a><span class="lineno"> 1325</span><span class="comment">   * necessary, since this value is immutable once user gets access to `*this`, and threads other than</span></div>
+<div class="line"><a id="l01326" name="l01326"></a><span class="lineno"> 1326</span><span class="comment">   * W can access it, but sock_free_memory() does clear it while the user may be accessing it.  Due</span></div>
+<div class="line"><a id="l01327" name="l01327"></a><span class="lineno"> 1327</span><span class="comment">   * to that caveat, we have to lock it.</span></div>
+<div class="line"><a id="l01328" name="l01328"></a><span class="lineno"> 1328</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01329" name="l01329"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a322dddf34a06bb199dab02c993bad686"> 1329</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a322dddf34a06bb199dab02c993bad686">m_serialized_metadata</a>;</div>
+<div class="line"><a id="l01330" name="l01330"></a><span class="lineno"> 1330</span><span class="comment"></span> </div>
+<div class="line"><a id="l01331" name="l01331"></a><span class="lineno"> 1331</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01332" name="l01332"></a><span class="lineno"> 1332</span><span class="comment">   * This object&#39;s mutex.  The protected items are #m_state, #m_open_sub_state, #m_disconnect_cause,</span></div>
+<div class="line"><a id="l01333" name="l01333"></a><span class="lineno"> 1333</span><span class="comment">   * #m_node, #m_rcv_buf, #m_snd_buf, #m_serialized_metadata.</span></div>
+<div class="line"><a id="l01334" name="l01334"></a><span class="lineno"> 1334</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01335" name="l01335"></a><span class="lineno"> 1335</span><span class="comment">   * Generally speaking, if 2 or more of the protected variables must be changed in the same</span></div>
+<div class="line"><a id="l01336" name="l01336"></a><span class="lineno"> 1336</span><span class="comment">   * non-blocking &quot;operation&quot; (for some reasonable definition of &quot;operation&quot;), they should probably</span></div>
+<div class="line"><a id="l01337" name="l01337"></a><span class="lineno"> 1337</span><span class="comment">   * be changed within the same #m_mutex-locking critical section.  For example, if closing the</span></div>
+<div class="line"><a id="l01338" name="l01338"></a><span class="lineno"> 1338</span><span class="comment">   * socket in thread W due to an incoming RST, one should lock #m_mutex, clear both buffers, set</span></div>
+<div class="line"><a id="l01339" name="l01339"></a><span class="lineno"> 1339</span><span class="comment">   * #m_disconnect_cause, change `m_state = State::S_CLOSED`, and then unlock #m_mutex.  Then thread U != W</span></div>
+<div class="line"><a id="l01340" name="l01340"></a><span class="lineno"> 1340</span><span class="comment">   * will observe all this state changed at the &quot;same time,&quot; which is desirable.</span></div>
+<div class="line"><a id="l01341" name="l01341"></a><span class="lineno"> 1341</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01342" name="l01342"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41"> 1342</a></span>  <span class="keyword">mutable</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ad1e36619c78b15f46576a18678a4ee67">Mutex</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">m_mutex</a>;</div>
+<div class="line"><a id="l01343" name="l01343"></a><span class="lineno"> 1343</span><span class="comment"></span> </div>
+<div class="line"><a id="l01344" name="l01344"></a><span class="lineno"> 1344</span><span class="comment">  /// See remote_endpoint().  Should be set before user gets access to `*this` and not changed afterwards.</span></div>
+<div class="line"><a id="l01345" name="l01345"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a218ec098984b754b43940001f59ab787"> 1345</a></span><span class="comment"></span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Remote__endpoint.html">Remote_endpoint</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a218ec098984b754b43940001f59ab787">m_remote_endpoint</a>;</div>
+<div class="line"><a id="l01346" name="l01346"></a><span class="lineno"> 1346</span><span class="comment"></span> </div>
+<div class="line"><a id="l01347" name="l01347"></a><span class="lineno"> 1347</span><span class="comment">  /// See local_port().  Should be set before user gets access to `*this` and not changed afterwards.</span></div>
+<div class="line"><a id="l01348" name="l01348"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a7b65c1b26e38a2ae614d9a12edfa57dd"> 1348</a></span><span class="comment"></span>  <a class="code hl_typedef" href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow_port_t</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a7b65c1b26e38a2ae614d9a12edfa57dd">m_local_port</a>;</div>
+<div class="line"><a id="l01349" name="l01349"></a><span class="lineno"> 1349</span><span class="comment"></span> </div>
+<div class="line"><a id="l01350" name="l01350"></a><span class="lineno"> 1350</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01351" name="l01351"></a><span class="lineno"> 1351</span><span class="comment">   * Current internal state of the socket.  Note this is a very central piece of information and is analogous</span></div>
+<div class="line"><a id="l01352" name="l01352"></a><span class="lineno"> 1352</span><span class="comment">   * to TCP&#39;s &quot;state&quot; (ESTABLISHED, etc. etc.).</span></div>
+<div class="line"><a id="l01353" name="l01353"></a><span class="lineno"> 1353</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01354" name="l01354"></a><span class="lineno"> 1354</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be</span></div>
+<div class="line"><a id="l01355" name="l01355"></a><span class="lineno"> 1355</span><span class="comment">   * accessed outside of thread W and is not protected by a mutex.</span></div>
+<div class="line"><a id="l01356" name="l01356"></a><span class="lineno"> 1356</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01357" name="l01357"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a2c5de5df50268168cbbad82eaf90fa93"> 1357</a></span>  <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">Int_state</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a2c5de5df50268168cbbad82eaf90fa93">m_int_state</a>;</div>
+<div class="line"><a id="l01358" name="l01358"></a><span class="lineno"> 1358</span><span class="comment"></span> </div>
+<div class="line"><a id="l01359" name="l01359"></a><span class="lineno"> 1359</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01360" name="l01360"></a><span class="lineno"> 1360</span><span class="comment">   * The queue of DATA packets received while in Int_state::S_SYN_RCVD state before the</span></div>
+<div class="line"><a id="l01361" name="l01361"></a><span class="lineno"> 1361</span><span class="comment">   * Syn_ack_ack_packet arrives to move us to Int_state::S_ESTABLISHED</span></div>
+<div class="line"><a id="l01362" name="l01362"></a><span class="lineno"> 1362</span><span class="comment">   * state, at which point these packets can be processed normally.  Such</span></div>
+<div class="line"><a id="l01363" name="l01363"></a><span class="lineno"> 1363</span><span class="comment">   * DATA packets would not normally exist, but they can exist if the SYN_ACK_ACK is lost or DATA</span></div>
+<div class="line"><a id="l01364" name="l01364"></a><span class="lineno"> 1364</span><span class="comment">   * packets are re-ordered to go ahead of it.  See Node::handle_data_to_syn_rcvd() for more</span></div>
+<div class="line"><a id="l01365" name="l01365"></a><span class="lineno"> 1365</span><span class="comment">   * detail.</span></div>
+<div class="line"><a id="l01366" name="l01366"></a><span class="lineno"> 1366</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01367" name="l01367"></a><span class="lineno"> 1367</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W</span></div>
+<div class="line"><a id="l01368" name="l01368"></a><span class="lineno"> 1368</span><span class="comment">   * and is not protected by a mutex.</span></div>
+<div class="line"><a id="l01369" name="l01369"></a><span class="lineno"> 1369</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01370" name="l01370"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a48320d96118a37626f1852626965e6ed"> 1370</a></span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1869760d5cfc5c0d22665e5db88710e4">Rcv_syn_rcvd_data_q</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a48320d96118a37626f1852626965e6ed">m_rcv_syn_rcvd_data_q</a>;</div>
+<div class="line"><a id="l01371" name="l01371"></a><span class="lineno"> 1371</span><span class="comment"></span> </div>
+<div class="line"><a id="l01372" name="l01372"></a><span class="lineno"> 1372</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01373" name="l01373"></a><span class="lineno"> 1373</span><span class="comment">   * The running total count of bytes in the `m_data` fields of #m_rcv_syn_rcvd_data_q.  Undefined</span></div>
+<div class="line"><a id="l01374" name="l01374"></a><span class="lineno"> 1374</span><span class="comment">   * when the latter is empty.  Used to limit its size.  This gains meaning only in thread W.  This</span></div>
+<div class="line"><a id="l01375" name="l01375"></a><span class="lineno"> 1375</span><span class="comment">   * should NOT be accessed outside of thread W and is not protected by a mutex.</span></div>
+<div class="line"><a id="l01376" name="l01376"></a><span class="lineno"> 1376</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01377" name="l01377"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a1553bbefc3407cf84eaa8e256c6cffff"> 1377</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a1553bbefc3407cf84eaa8e256c6cffff">m_rcv_syn_rcvd_data_cumulative_size</a>;</div>
+<div class="line"><a id="l01378" name="l01378"></a><span class="lineno"> 1378</span><span class="comment"></span> </div>
+<div class="line"><a id="l01379" name="l01379"></a><span class="lineno"> 1379</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01380" name="l01380"></a><span class="lineno"> 1380</span><span class="comment">   * The Initial Sequence Number (ISN) contained in the original Syn_packet or</span></div>
+<div class="line"><a id="l01381" name="l01381"></a><span class="lineno"> 1381</span><span class="comment">   * Syn_ack_packet we received.</span></div>
+<div class="line"><a id="l01382" name="l01382"></a><span class="lineno"> 1382</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01383" name="l01383"></a><span class="lineno"> 1383</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01384" name="l01384"></a><span class="lineno"> 1384</span><span class="comment">   * not protected by a mutex.  Useful at least in verifying the validity of duplicate SYNs and</span></div>
+<div class="line"><a id="l01385" name="l01385"></a><span class="lineno"> 1385</span><span class="comment">   * SYN_ACKs.</span></div>
+<div class="line"><a id="l01386" name="l01386"></a><span class="lineno"> 1386</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01387" name="l01387"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a5dc05d1f5deb71e1259c5d5aad1fcf84"> 1387</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a5dc05d1f5deb71e1259c5d5aad1fcf84">m_rcv_init_seq_num</a>;</div>
+<div class="line"><a id="l01388" name="l01388"></a><span class="lineno"> 1388</span><span class="comment"></span> </div>
+<div class="line"><a id="l01389" name="l01389"></a><span class="lineno"> 1389</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01390" name="l01390"></a><span class="lineno"> 1390</span><span class="comment">   * The maximal sequence number R from the remote side such that all data with sequence numbers</span></div>
+<div class="line"><a id="l01391" name="l01391"></a><span class="lineno"> 1391</span><span class="comment">   * strictly less than R in this connection have been received by us and placed into the Receive</span></div>
+<div class="line"><a id="l01392" name="l01392"></a><span class="lineno"> 1392</span><span class="comment">   * buffer.  This first gains meaning upon receiving SYN and is the sequence number of that SYN,</span></div>
+<div class="line"><a id="l01393" name="l01393"></a><span class="lineno"> 1393</span><span class="comment">   * plus one (as in TCP); or upon receiving SYN_ACK (similarly).  Note that received packets past</span></div>
+<div class="line"><a id="l01394" name="l01394"></a><span class="lineno"> 1394</span><span class="comment">   * this sequence number may exist, but if so there is at least one missing packet (the one at</span></div>
+<div class="line"><a id="l01395" name="l01395"></a><span class="lineno"> 1395</span><span class="comment">   * #m_rcv_next_seq_num) preceding all of them.</span></div>
+<div class="line"><a id="l01396" name="l01396"></a><span class="lineno"> 1396</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01397" name="l01397"></a><span class="lineno"> 1397</span><span class="comment">   * @see #m_rcv_packets_with_gaps.</span></div>
+<div class="line"><a id="l01398" name="l01398"></a><span class="lineno"> 1398</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01399" name="l01399"></a><span class="lineno"> 1399</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01400" name="l01400"></a><span class="lineno"> 1400</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01401" name="l01401"></a><span class="lineno"> 1401</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01402" name="l01402"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a13c640ebd14a75df3894e7d885d16f5f"> 1402</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a13c640ebd14a75df3894e7d885d16f5f">m_rcv_next_seq_num</a>;</div>
+<div class="line"><a id="l01403" name="l01403"></a><span class="lineno"> 1403</span><span class="comment"></span> </div>
+<div class="line"><a id="l01404" name="l01404"></a><span class="lineno"> 1404</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01405" name="l01405"></a><span class="lineno"> 1405</span><span class="comment">   * The sequence-number-ordered collection of all</span></div>
+<div class="line"><a id="l01406" name="l01406"></a><span class="lineno"> 1406</span><span class="comment">   * received-and-not-dropped-due-to-buffer-overflow packets such that at least</span></div>
+<div class="line"><a id="l01407" name="l01407"></a><span class="lineno"> 1407</span><span class="comment">   * one unreceived-or-otherwise-unknown datum precedes all sequence numbers in this collection;</span></div>
+<div class="line"><a id="l01408" name="l01408"></a><span class="lineno"> 1408</span><span class="comment">   * a/k/a the reassembly queue if retransmission is enabled.</span></div>
+<div class="line"><a id="l01409" name="l01409"></a><span class="lineno"> 1409</span><span class="comment">   * With retransmission off, the only purpose of keeping this structure at all is to detect any</span></div>
+<div class="line"><a id="l01410" name="l01410"></a><span class="lineno"> 1410</span><span class="comment">   * already-received-and-given-to-Receive-buffer packet coming in again; such a packet should be</span></div>
+<div class="line"><a id="l01411" name="l01411"></a><span class="lineno"> 1411</span><span class="comment">   * ACKed but NOT given to the Receive buffer again (avoid data duplication).  With retransmission</span></div>
+<div class="line"><a id="l01412" name="l01412"></a><span class="lineno"> 1412</span><span class="comment">   * on, this is additionally used as the reassembly queue (storing the non-contiguous data until</span></div>
+<div class="line"><a id="l01413" name="l01413"></a><span class="lineno"> 1413</span><span class="comment">   * the gaps are filled in).</span></div>
+<div class="line"><a id="l01414" name="l01414"></a><span class="lineno"> 1414</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01415" name="l01415"></a><span class="lineno"> 1415</span><span class="comment">   * The structure is best explained by breaking down the sequence number space.  I list the</span></div>
+<div class="line"><a id="l01416" name="l01416"></a><span class="lineno"> 1416</span><span class="comment">   * sequence number ranges in increasing order starting with the ISN.  Let `last_rcv_seq_num` be the</span></div>
+<div class="line"><a id="l01417" name="l01417"></a><span class="lineno"> 1417</span><span class="comment">   * sequence number of the last datum to have been received (and not dropped due to insufficient</span></div>
+<div class="line"><a id="l01418" name="l01418"></a><span class="lineno"> 1418</span><span class="comment">   * Receive buffer space), for exposition purposes.</span></div>
+<div class="line"><a id="l01419" name="l01419"></a><span class="lineno"> 1419</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01420" name="l01420"></a><span class="lineno"> 1420</span><span class="comment">   *   - #m_rcv_init_seq_num =</span></div>
+<div class="line"><a id="l01421" name="l01421"></a><span class="lineno"> 1421</span><span class="comment">   *     - SYN or SYN_ACK</span></div>
+<div class="line"><a id="l01422" name="l01422"></a><span class="lineno"> 1422</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01423" name="l01423"></a><span class="lineno"> 1423</span><span class="comment">   *   - [`m_rcv_init_seq_num + 1`, `m_rcv_next_seq_num - 1`] =</span></div>
+<div class="line"><a id="l01424" name="l01424"></a><span class="lineno"> 1424</span><span class="comment">   *     - Largest possible range of sequence numbers such that each datum represented by this range</span></div>
+<div class="line"><a id="l01425" name="l01425"></a><span class="lineno"> 1425</span><span class="comment">   *       has been received (and not dropped due to insufficient Receive buffer space) and copied to</span></div>
+<div class="line"><a id="l01426" name="l01426"></a><span class="lineno"> 1426</span><span class="comment">   *       the Receive buffer for user retrieval.</span></div>
+<div class="line"><a id="l01427" name="l01427"></a><span class="lineno"> 1427</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01428" name="l01428"></a><span class="lineno"> 1428</span><span class="comment">   *   - [#m_rcv_next_seq_num, `m_rcv_next_seq_num + N - 1`] =</span></div>
+<div class="line"><a id="l01429" name="l01429"></a><span class="lineno"> 1429</span><span class="comment">   *     - The first packet after the ISN that has not yet been received (or has been received but has</span></div>
+<div class="line"><a id="l01430" name="l01430"></a><span class="lineno"> 1430</span><span class="comment">   *       been dropped due to insufficient Receive buffer space).  `N` is the (unknown to us) length of</span></div>
+<div class="line"><a id="l01431" name="l01431"></a><span class="lineno"> 1431</span><span class="comment">   *       that packet.  `N` &gt; 0.  This can be seen as the first &quot;gap&quot; in the received sequence number</span></div>
+<div class="line"><a id="l01432" name="l01432"></a><span class="lineno"> 1432</span><span class="comment">   *       space.</span></div>
+<div class="line"><a id="l01433" name="l01433"></a><span class="lineno"> 1433</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01434" name="l01434"></a><span class="lineno"> 1434</span><span class="comment">   *   - [`m_rcv_next_seq_num + N`, `last_rcv_seq_num`] =</span></div>
+<div class="line"><a id="l01435" name="l01435"></a><span class="lineno"> 1435</span><span class="comment">   *     - The remaining packets up to and including the last byte that has been received (and not</span></div>
+<div class="line"><a id="l01436" name="l01436"></a><span class="lineno"> 1436</span><span class="comment">   *       dropped due to insufficient Receive buffer space).  Each packet in this range is one of the</span></div>
+<div class="line"><a id="l01437" name="l01437"></a><span class="lineno"> 1437</span><span class="comment">   *       following:</span></div>
+<div class="line"><a id="l01438" name="l01438"></a><span class="lineno"> 1438</span><span class="comment">   *       - received (and not dropped due to insufficient Receive buffer space);</span></div>
+<div class="line"><a id="l01439" name="l01439"></a><span class="lineno"> 1439</span><span class="comment">   *       - not received (or received and dropped due to insufficient Receive buffer space).</span></div>
+<div class="line"><a id="l01440" name="l01440"></a><span class="lineno"> 1440</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01441" name="l01441"></a><span class="lineno"> 1441</span><span class="comment">   *   - [`last_rcv_seq_num + 1`, ...] =</span></div>
+<div class="line"><a id="l01442" name="l01442"></a><span class="lineno"> 1442</span><span class="comment">   *     - All remaining not-yet-received (or received but dropped due to insufficient Receive buffer</span></div>
+<div class="line"><a id="l01443" name="l01443"></a><span class="lineno"> 1443</span><span class="comment">   *       space) packets.</span></div>
+<div class="line"><a id="l01444" name="l01444"></a><span class="lineno"> 1444</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01445" name="l01445"></a><span class="lineno"> 1445</span><span class="comment">   * #m_rcv_packets_with_gaps contains all Received_packets in the range [`m_rcv_next_seq_num + N`,</span></div>
+<div class="line"><a id="l01446" name="l01446"></a><span class="lineno"> 1446</span><span class="comment">   * `last_rcv_seq_num`], with each particular Received_packet&#39;s first sequence number as its key.  If</span></div>
+<div class="line"><a id="l01447" name="l01447"></a><span class="lineno"> 1447</span><span class="comment">   * there are no gaps -- all received sequence numbers are followed by unreceived sequence numbers</span></div>
+<div class="line"><a id="l01448" name="l01448"></a><span class="lineno"> 1448</span><span class="comment">   * -- then that range is empty and so is #m_rcv_packets_with_gaps.  All the other ranges can be</span></div>
+<div class="line"><a id="l01449" name="l01449"></a><span class="lineno"> 1449</span><span class="comment">   * null (empty) as well.  If there are no received-and-undropped packets, then `m_rcv_init_seq_num</span></div>
+<div class="line"><a id="l01450" name="l01450"></a><span class="lineno"> 1450</span><span class="comment">   * == m_rcv_next_seq_num`, which is the initial situation.</span></div>
+<div class="line"><a id="l01451" name="l01451"></a><span class="lineno"> 1451</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01452" name="l01452"></a><span class="lineno"> 1452</span><span class="comment">   * The above is an invariant, to be true at the end of each boost.asio handler in thread W, at</span></div>
+<div class="line"><a id="l01453" name="l01453"></a><span class="lineno"> 1453</span><span class="comment">   * least.</span></div>
+<div class="line"><a id="l01454" name="l01454"></a><span class="lineno"> 1454</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01455" name="l01455"></a><span class="lineno"> 1455</span><span class="comment">   * Each received-and-undropped packet therefore is placed into #m_rcv_packets_with_gaps, anywhere</span></div>
+<div class="line"><a id="l01456" name="l01456"></a><span class="lineno"> 1456</span><span class="comment">   * in the middle.  If retransmission is off, the data in the packet is added to Receive buffer.</span></div>
+<div class="line"><a id="l01457" name="l01457"></a><span class="lineno"> 1457</span><span class="comment">   * If retransmission is on, the data in the packet is NOT added to Receive buffer but instead</span></div>
+<div class="line"><a id="l01458" name="l01458"></a><span class="lineno"> 1458</span><span class="comment">   * saved within the structure for later reassembly (see next paragraph).</span></div>
+<div class="line"><a id="l01459" name="l01459"></a><span class="lineno"> 1459</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01460" name="l01460"></a><span class="lineno"> 1460</span><span class="comment">   * If the [#m_rcv_next_seq_num, ...] (first gap) packet is received-and-not-dropped, then</span></div>
+<div class="line"><a id="l01461" name="l01461"></a><span class="lineno"> 1461</span><span class="comment">   * #m_rcv_next_seq_num is incremented by N (the length of that packet), filling the gap.  Moreover,</span></div>
+<div class="line"><a id="l01462" name="l01462"></a><span class="lineno"> 1462</span><span class="comment">   * any contiguous packets at the front of #m_rcv_packets_with_gaps, assuming the first packet&#39;s</span></div>
+<div class="line"><a id="l01463" name="l01463"></a><span class="lineno"> 1463</span><span class="comment">   * sequence number equals #m_rcv_next_seq_num, must be removed from #m_rcv_packets_with_gaps, and</span></div>
+<div class="line"><a id="l01464" name="l01464"></a><span class="lineno"> 1464</span><span class="comment">   * #m_rcv_next_seq_num should be incremented accordingly.  All of this maintains the invariant.  If</span></div>
+<div class="line"><a id="l01465" name="l01465"></a><span class="lineno"> 1465</span><span class="comment">   * retransmission is on, the data in the byte sequence formed by this operation is to be placed</span></div>
+<div class="line"><a id="l01466" name="l01466"></a><span class="lineno"> 1466</span><span class="comment">   * (in sequence number order) into the Receive buffer (a/k/a reassembly).</span></div>
+<div class="line"><a id="l01467" name="l01467"></a><span class="lineno"> 1467</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01468" name="l01468"></a><span class="lineno"> 1468</span><span class="comment">   * Conceptually, this is the action of receiving a gap packet which links up following</span></div>
+<div class="line"><a id="l01469" name="l01469"></a><span class="lineno"> 1469</span><span class="comment">   * already-received packets to previous already-received packets, which means all of these can go</span></div>
+<div class="line"><a id="l01470" name="l01470"></a><span class="lineno"> 1470</span><span class="comment">   * away, as the window slides forward beyond them.</span></div>
+<div class="line"><a id="l01471" name="l01471"></a><span class="lineno"> 1471</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01472" name="l01472"></a><span class="lineno"> 1472</span><span class="comment">   * If a packet arrives and is already in #m_rcv_packets_with_gaps, then it is a duplicate and is</span></div>
+<div class="line"><a id="l01473" name="l01473"></a><span class="lineno"> 1473</span><span class="comment">   * NOT placed on the Receive buffer.  The same holds for any packet with sequence numbers</span></div>
+<div class="line"><a id="l01474" name="l01474"></a><span class="lineno"> 1474</span><span class="comment">   * preceding #m_rcv_next_seq_num.</span></div>
+<div class="line"><a id="l01475" name="l01475"></a><span class="lineno"> 1475</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01476" name="l01476"></a><span class="lineno"> 1476</span><span class="comment">   * The type used is a map sorted by starting sequence number of each packet.  Why?  We need pretty</span></div>
+<div class="line"><a id="l01477" name="l01477"></a><span class="lineno"> 1477</span><span class="comment">   * fast middle operations, inserting and checking for existence of arriving packet.  We need fast</span></div>
+<div class="line"><a id="l01478" name="l01478"></a><span class="lineno"> 1478</span><span class="comment">   * access to the earliest (smallest sequence number) packet, for when the first gap is filled.</span></div>
+<div class="line"><a id="l01479" name="l01479"></a><span class="lineno"> 1479</span><span class="comment">   * `std::map` satisfies these needs: `insert()` and `lower_bound()` are &lt;em&gt;O(log n)&lt;/em&gt;; `begin()` gives the</span></div>
+<div class="line"><a id="l01480" name="l01480"></a><span class="lineno"> 1480</span><span class="comment">   * smallest element and is @em O(1).  Iteration is @em O(1) as well.  (All amortized.)</span></div>
+<div class="line"><a id="l01481" name="l01481"></a><span class="lineno"> 1481</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01482" name="l01482"></a><span class="lineno"> 1482</span><span class="comment">   * ### Memory use ###</span></div>
+<div class="line"><a id="l01483" name="l01483"></a><span class="lineno"> 1483</span><span class="comment">   * The above scheme allows for unbounded memory use given certain behavior from the</span></div>
+<div class="line"><a id="l01484" name="l01484"></a><span class="lineno"> 1484</span><span class="comment">   * other side, when retransmission is off.  Suppose packets 1, 2, 3 are received; then packets 5,</span></div>
+<div class="line"><a id="l01485" name="l01485"></a><span class="lineno"> 1485</span><span class="comment">   * 6, ..., 1000 are received.  Retransmission is off, so eventually the sender</span></div>
+<div class="line"><a id="l01486" name="l01486"></a><span class="lineno"> 1486</span><span class="comment">   * may give up on packet 4 and consider it Dropped.  So the gap will forever exist; hence</span></div>
+<div class="line"><a id="l01487" name="l01487"></a><span class="lineno"> 1487</span><span class="comment">   * #m_rcv_packets_with_gaps will always hold per-packet data for 5, 6, ..., 1000 (and any</span></div>
+<div class="line"><a id="l01488" name="l01488"></a><span class="lineno"> 1488</span><span class="comment">   * subsequent packets).  With retransmission, packet 4 would eventually arrive, or the connection</span></div>
+<div class="line"><a id="l01489" name="l01489"></a><span class="lineno"> 1489</span><span class="comment">   * would get RSTed, but without retransmission that doesn&#39;t happen.  Thus memory use will just</span></div>
+<div class="line"><a id="l01490" name="l01490"></a><span class="lineno"> 1490</span><span class="comment">   * grow and grow.  Solution: come up with some heuristic that would quite conservatively declare</span></div>
+<div class="line"><a id="l01491" name="l01491"></a><span class="lineno"> 1491</span><span class="comment">   * that packet 4 has been &quot;received,&quot; even though it hasn&#39;t. This will plug the hole (packet 4)</span></div>
+<div class="line"><a id="l01492" name="l01492"></a><span class="lineno"> 1492</span><span class="comment">   * and clear #m_rcv_packets_with_gaps in this example.  Then if packet 4 does somehow come in, it</span></div>
+<div class="line"><a id="l01493" name="l01493"></a><span class="lineno"> 1493</span><span class="comment">   * will get ACKed (like any valid received packet) but will NOT be saved into the Receive buffer,</span></div>
+<div class="line"><a id="l01494" name="l01494"></a><span class="lineno"> 1494</span><span class="comment">   * since it will be considered &quot;duplicate&quot; due to already being &quot;received.&quot;  Of course, the</span></div>
+<div class="line"><a id="l01495" name="l01495"></a><span class="lineno"> 1495</span><span class="comment">   * heuristic must be such that few if any packets considered &quot;received&quot; this way will actually get</span></div>
+<div class="line"><a id="l01496" name="l01496"></a><span class="lineno"> 1496</span><span class="comment">   * delivered eventually, otherwise we may lose a lot of data.  Here is one such heuristic, that is</span></div>
+<div class="line"><a id="l01497" name="l01497"></a><span class="lineno"> 1497</span><span class="comment">   * both simple and conservative: let N be some constant (e.g., N = 100).  If</span></div>
+<div class="line"><a id="l01498" name="l01498"></a><span class="lineno"> 1498</span><span class="comment">   * `m_rcv_packets_with_gaps.size()` exceeds N (i.e., equals (N + 1)), consider all gap packets</span></div>
+<div class="line"><a id="l01499" name="l01499"></a><span class="lineno"> 1499</span><span class="comment">   * preceding #m_rcv_packets_with_gaps&#39;s first sequence number as &quot;received.&quot;  This will, through</span></div>
+<div class="line"><a id="l01500" name="l01500"></a><span class="lineno"> 1500</span><span class="comment">   * gap filling logic described above, reduce `m_rcv_packets_with_gaps.size()` to N or less.  Thus it</span></div>
+<div class="line"><a id="l01501" name="l01501"></a><span class="lineno"> 1501</span><span class="comment">   * puts a simple upper bound on #m_rcv_packets_with_gaps&#39;s memory; if N = 100 the memory used by</span></div>
+<div class="line"><a id="l01502" name="l01502"></a><span class="lineno"> 1502</span><span class="comment">   * the structure is not much (since we don&#39;t store the actual packet data there [but this can get</span></div>
+<div class="line"><a id="l01503" name="l01503"></a><span class="lineno"> 1503</span><span class="comment">   * non-trivial with 100,000 sockets all filled up]).  Is it conservative?  Yes.  100 packets</span></div>
+<div class="line"><a id="l01504" name="l01504"></a><span class="lineno"> 1504</span><span class="comment">   * arriving after a gap are a near-guarantee those gap packets will never arrive (especially</span></div>
+<div class="line"><a id="l01505" name="l01505"></a><span class="lineno"> 1505</span><span class="comment">   * without retransmission, which is the predicate for this entire problem).  Besides, the Drop</span></div>
+<div class="line"><a id="l01506" name="l01506"></a><span class="lineno"> 1506</span><span class="comment">   * heuristics on the Sender side almost certainly will consider gap packets with 100 or near 100</span></div>
+<div class="line"><a id="l01507" name="l01507"></a><span class="lineno"> 1507</span><span class="comment">   * Acknowledged packets after them as Dropped a long time ago; if the receiving side&#39;s heuristics</span></div>
+<div class="line"><a id="l01508" name="l01508"></a><span class="lineno"> 1508</span><span class="comment">   * are far more conservative, then that is good enough.</span></div>
+<div class="line"><a id="l01509" name="l01509"></a><span class="lineno"> 1509</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01510" name="l01510"></a><span class="lineno"> 1510</span><span class="comment">   * If retransmission is on, then (as noted) the sender&#39;s CWND and retransmission logic will ensure</span></div>
+<div class="line"><a id="l01511" name="l01511"></a><span class="lineno"> 1511</span><span class="comment">   * that gaps are filled before more future data are sent, so the above situation will not occur.</span></div>
+<div class="line"><a id="l01512" name="l01512"></a><span class="lineno"> 1512</span><span class="comment">   * However if the sender is a bad boy and for some reason sends new data and ignores gaps</span></div>
+<div class="line"><a id="l01513" name="l01513"></a><span class="lineno"> 1513</span><span class="comment">   * (possibly malicious behavior), then it would still be a problem.  Since in retransmission mode</span></div>
+<div class="line"><a id="l01514" name="l01514"></a><span class="lineno"> 1514</span><span class="comment">   * it&#39;s not OK to just ignore lost packets, we have no choice but to drop received packets when</span></div>
+<div class="line"><a id="l01515" name="l01515"></a><span class="lineno"> 1515</span><span class="comment">   * the above situation occurs (similarly to when Receive buffer is exceeded).  This is basically a</span></div>
+<div class="line"><a id="l01516" name="l01516"></a><span class="lineno"> 1516</span><span class="comment">   * security measure and should not matter assuming well-behaved operation from the other side.</span></div>
+<div class="line"><a id="l01517" name="l01517"></a><span class="lineno"> 1517</span><span class="comment">   * Update: With retransmission on, this structure is now subject to overflow protection with a tighter</span></div>
+<div class="line"><a id="l01518" name="l01518"></a><span class="lineno"> 1518</span><span class="comment">   * limit than with rexmit-off; namely, the limit controlling #m_rcv_buf overflow actually applies to</span></div>
+<div class="line"><a id="l01519" name="l01519"></a><span class="lineno"> 1519</span><span class="comment">   * the sum of data being stored in #m_rcv_buf and this structure, together.  I.e., a packet is dropped</span></div>
+<div class="line"><a id="l01520" name="l01520"></a><span class="lineno"> 1520</span><span class="comment">   * if the total data stored in #m_rcv_buf and #m_rcv_packets_with_gaps equal or exceed the configured</span></div>
+<div class="line"><a id="l01521" name="l01521"></a><span class="lineno"> 1521</span><span class="comment">   * limit.  Accordingly, rcv-wnd advertised to other side is based on this sum also.</span></div>
+<div class="line"><a id="l01522" name="l01522"></a><span class="lineno"> 1522</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01523" name="l01523"></a><span class="lineno"> 1523</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01524" name="l01524"></a><span class="lineno"> 1524</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01525" name="l01525"></a><span class="lineno"> 1525</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01526" name="l01526"></a><span class="lineno"> 1526</span><span class="comment">   * @see #m_rcv_reassembly_q_data_size.</span></div>
+<div class="line"><a id="l01527" name="l01527"></a><span class="lineno"> 1527</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01528" name="l01528"></a><span class="lineno"> 1528</span><span class="comment">   * @todo The memory use of this structure could be greatly optimized if, instead of storing each</span></div>
+<div class="line"><a id="l01529" name="l01529"></a><span class="lineno"> 1529</span><span class="comment">   * individual received packet&#39;s metadata separately, we always merged contiguous sequence number</span></div>
+<div class="line"><a id="l01530" name="l01530"></a><span class="lineno"> 1530</span><span class="comment">   * ranges.  So for example if packet P1, P2, P3 (contiguous) all arrived in sequence, after</span></div>
+<div class="line"><a id="l01531" name="l01531"></a><span class="lineno"> 1531</span><span class="comment">   * missing packet P0, then we&#39;d store P1&#39;s first sequence number and the total data size of</span></div>
+<div class="line"><a id="l01532" name="l01532"></a><span class="lineno"> 1532</span><span class="comment">   * P1+P2+P3, in a single `struct` instance.  Since a typical pattern might include 1 lost packet</span></div>
+<div class="line"><a id="l01533" name="l01533"></a><span class="lineno"> 1533</span><span class="comment">   * followed by 100 received packets, we&#39;d be able to cut down memory use by a factor of about 100</span></div>
+<div class="line"><a id="l01534" name="l01534"></a><span class="lineno"> 1534</span><span class="comment">   * in that case (and thus worry much less about the limit).  Of course the code would get more</span></div>
+<div class="line"><a id="l01535" name="l01535"></a><span class="lineno"> 1535</span><span class="comment">   * complex and potentially slower (but not necessarily significantly).</span></div>
+<div class="line"><a id="l01536" name="l01536"></a><span class="lineno"> 1536</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01537" name="l01537"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ae82958ed6d71be46b96eceaca6214143"> 1537</a></span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#addfc181f4d43ab816b2ede9216bf9331">Recvd_pkt_map</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ae82958ed6d71be46b96eceaca6214143">m_rcv_packets_with_gaps</a>;</div>
+<div class="line"><a id="l01538" name="l01538"></a><span class="lineno"> 1538</span><span class="comment"></span> </div>
+<div class="line"><a id="l01539" name="l01539"></a><span class="lineno"> 1539</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01540" name="l01540"></a><span class="lineno"> 1540</span><span class="comment">   * With retransmission enabled, the sum of Received_packet::m_size over all packets stored in the</span></div>
+<div class="line"><a id="l01541" name="l01541"></a><span class="lineno"> 1541</span><span class="comment">   * reassembly queue, #m_rcv_packets_with_gaps.  Stored for performance.</span></div>
+<div class="line"><a id="l01542" name="l01542"></a><span class="lineno"> 1542</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01543" name="l01543"></a><span class="lineno"> 1543</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01544" name="l01544"></a><span class="lineno"> 1544</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01545" name="l01545"></a><span class="lineno"> 1545</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01546" name="l01546"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aa7398394052c8e634365fb979c294644"> 1546</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aa7398394052c8e634365fb979c294644">m_rcv_reassembly_q_data_size</a>;</div>
+<div class="line"><a id="l01547" name="l01547"></a><span class="lineno"> 1547</span><span class="comment"></span> </div>
+<div class="line"><a id="l01548" name="l01548"></a><span class="lineno"> 1548</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01549" name="l01549"></a><span class="lineno"> 1549</span><span class="comment">   * The received packets to be acknowledged in the next low-level ACK packet to be sent to the</span></div>
+<div class="line"><a id="l01550" name="l01550"></a><span class="lineno"> 1550</span><span class="comment">   * other side, ordered in the chronological order they were received.  They are accumulated in a</span></div>
+<div class="line"><a id="l01551" name="l01551"></a><span class="lineno"> 1551</span><span class="comment">   * data structure because we may not send each desired acknowledgment right away, combining</span></div>
+<div class="line"><a id="l01552" name="l01552"></a><span class="lineno"> 1552</span><span class="comment">   * several together, thus reducing overhead at the cost of short delays (or even nearly</span></div>
+<div class="line"><a id="l01553" name="l01553"></a><span class="lineno"> 1553</span><span class="comment">   * non-existent delays, as in the case of several DATA packets handled in one</span></div>
+<div class="line"><a id="l01554" name="l01554"></a><span class="lineno"> 1554</span><span class="comment">   * NodeLLlow_lvl_recv_and_handle() invocation, i.e., having arrived at nearly at the same time).</span></div>
+<div class="line"><a id="l01555" name="l01555"></a><span class="lineno"> 1555</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01556" name="l01556"></a><span class="lineno"> 1556</span><span class="comment">   * Any two packets represented by these Individual_ack objects may be duplicates of each other (same</span></div>
+<div class="line"><a id="l01557" name="l01557"></a><span class="lineno"> 1557</span><span class="comment">   * Sequence_number, possibly different Individual_ack::m_received_when values).  It&#39;s up to the sender (receiver</span></div>
+<div class="line"><a id="l01558" name="l01558"></a><span class="lineno"> 1558</span><span class="comment">   * of ACK) to sort it out.  However, again, they MUST be ordered chronologicaly based on the time</span></div>
+<div class="line"><a id="l01559" name="l01559"></a><span class="lineno"> 1559</span><span class="comment">   * when they were received; from earliest to latest.</span></div>
+<div class="line"><a id="l01560" name="l01560"></a><span class="lineno"> 1560</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01561" name="l01561"></a><span class="lineno"> 1561</span><span class="comment">   * Storing shared pointers to avoid copying of structs (however small) during internal</span></div>
+<div class="line"><a id="l01562" name="l01562"></a><span class="lineno"> 1562</span><span class="comment">   * reshuffling; shared instead of raw pointers to not worry about delete.</span></div>
+<div class="line"><a id="l01563" name="l01563"></a><span class="lineno"> 1563</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01564" name="l01564"></a><span class="lineno"> 1564</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01565" name="l01565"></a><span class="lineno"> 1565</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01566" name="l01566"></a><span class="lineno"> 1566</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01567" name="l01567"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad46ed439a3d118eb2b540e9f99a7b0ca"> 1567</a></span>  std::vector&lt;boost::shared_ptr&lt;Individual_ack&gt;&gt; <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ad46ed439a3d118eb2b540e9f99a7b0ca">m_rcv_pending_acks</a>;</div>
+<div class="line"><a id="l01568" name="l01568"></a><span class="lineno"> 1568</span><span class="comment"></span> </div>
+<div class="line"><a id="l01569" name="l01569"></a><span class="lineno"> 1569</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01570" name="l01570"></a><span class="lineno"> 1570</span><span class="comment">   * Helper state, to be used while inside either Node::low_lvl_recv_and_handle() or</span></div>
+<div class="line"><a id="l01571" name="l01571"></a><span class="lineno"> 1571</span><span class="comment">   * async part of Node::async_wait_latency_then_handle_incoming(), set only at the beginning of either and equal to</span></div>
+<div class="line"><a id="l01572" name="l01572"></a><span class="lineno"> 1572</span><span class="comment">   * `m_rcv_pending_acks.size()` at that time.  Because, for efficiency, individual acknowledgements are</span></div>
+<div class="line"><a id="l01573" name="l01573"></a><span class="lineno"> 1573</span><span class="comment">   * accumulated over the course of those two methods, and an ACK with those acknowledgments is</span></div>
+<div class="line"><a id="l01574" name="l01574"></a><span class="lineno"> 1574</span><span class="comment">   * sent at the end of that method (in perform_accumulated_on_recv_tasks()) at the earliest, this</span></div>
+<div class="line"><a id="l01575" name="l01575"></a><span class="lineno"> 1575</span><span class="comment">   * member is used to determine whether we should start a delayed ACK timer at that point.</span></div>
+<div class="line"><a id="l01576" name="l01576"></a><span class="lineno"> 1576</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01577" name="l01577"></a><span class="lineno"> 1577</span><span class="comment">   * This gains meaning only in thread W and only within Node::low_lvl_recv_and_handle()/etc.</span></div>
+<div class="line"><a id="l01578" name="l01578"></a><span class="lineno"> 1578</span><span class="comment">   * and loses meaning after either method exits.  This should NOT</span></div>
+<div class="line"><a id="l01579" name="l01579"></a><span class="lineno"> 1579</span><span class="comment">   * be accessed outside of thread W and is not protected by a mutex.</span></div>
+<div class="line"><a id="l01580" name="l01580"></a><span class="lineno"> 1580</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01581" name="l01581"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a780f86759f861a3a84de8c5c768736b7"> 1581</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a780f86759f861a3a84de8c5c768736b7">m_rcv_pending_acks_size_at_recv_handler_start</a>;</div>
+<div class="line"><a id="l01582" name="l01582"></a><span class="lineno"> 1582</span><span class="comment"></span> </div>
+<div class="line"><a id="l01583" name="l01583"></a><span class="lineno"> 1583</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01584" name="l01584"></a><span class="lineno"> 1584</span><span class="comment">   * While Node::low_lvl_recv_and_handle() or async part of Node::async_wait_latency_then_handle_incoming() is running,</span></div>
+<div class="line"><a id="l01585" name="l01585"></a><span class="lineno"> 1585</span><span class="comment">   * accumulates the individual acknowledgments contained in all incoming ACK low-level packets</span></div>
+<div class="line"><a id="l01586" name="l01586"></a><span class="lineno"> 1586</span><span class="comment">   * received in those methods.  More precisely, this accumulates the elements of</span></div>
+<div class="line"><a id="l01587" name="l01587"></a><span class="lineno"> 1587</span><span class="comment">   * `packet.m_rcv_acked_packets` for all packets such that `packet` is an Ack_packet.  They are accumulated</span></div>
+<div class="line"><a id="l01588" name="l01588"></a><span class="lineno"> 1588</span><span class="comment">   * in this data structure for a similar reason that outgoing acknowledgments are accumulated in</span></div>
+<div class="line"><a id="l01589" name="l01589"></a><span class="lineno"> 1589</span><span class="comment">   * `Peer_socket::m_rcv_pending_acks`.  The situation here is simpler, however, since the present</span></div>
+<div class="line"><a id="l01590" name="l01590"></a><span class="lineno"> 1590</span><span class="comment">   * structure is always scanned and cleared at the end of the current handler and never carried</span></div>
+<div class="line"><a id="l01591" name="l01591"></a><span class="lineno"> 1591</span><span class="comment">   * over to the next, as we always want to scan all individual acks received within a non-blocking</span></div>
+<div class="line"><a id="l01592" name="l01592"></a><span class="lineno"> 1592</span><span class="comment">   * amount of time from receipt.  See Node::handle_ack_to_established() for details.</span></div>
+<div class="line"><a id="l01593" name="l01593"></a><span class="lineno"> 1593</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01594" name="l01594"></a><span class="lineno"> 1594</span><span class="comment">   * This structure is empty, accumulated over the course of those methods, is used to finally scan</span></div>
+<div class="line"><a id="l01595" name="l01595"></a><span class="lineno"> 1595</span><span class="comment">   * all individual acknowledgments (in the exact order received), and then cleared for the next</span></div>
+<div class="line"><a id="l01596" name="l01596"></a><span class="lineno"> 1596</span><span class="comment">   * run.</span></div>
+<div class="line"><a id="l01597" name="l01597"></a><span class="lineno"> 1597</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01598" name="l01598"></a><span class="lineno"> 1598</span><span class="comment">   * Storing shared pointers to avoid copying of structs (however small) during internal</span></div>
+<div class="line"><a id="l01599" name="l01599"></a><span class="lineno"> 1599</span><span class="comment">   * reshuffling; shared instead of raw pointers to not worry about delete.</span></div>
+<div class="line"><a id="l01600" name="l01600"></a><span class="lineno"> 1600</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01601" name="l01601"></a><span class="lineno"> 1601</span><span class="comment">   * This gains meaning only in thread W and only within Node::low_lvl_recv_and_handle()/etc.</span></div>
+<div class="line"><a id="l01602" name="l01602"></a><span class="lineno"> 1602</span><span class="comment">   * and loses meaning after either method exits.  This should NOT</span></div>
+<div class="line"><a id="l01603" name="l01603"></a><span class="lineno"> 1603</span><span class="comment">   * be accessed outside of thread W and is not protected by a mutex.</span></div>
+<div class="line"><a id="l01604" name="l01604"></a><span class="lineno"> 1604</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01605" name="l01605"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a8229396adfd306d15e8a05dac3fe8c29"> 1605</a></span>  std::vector&lt;Ack_packet::Individual_ack::Ptr&gt; <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a8229396adfd306d15e8a05dac3fe8c29">m_rcv_acked_packets</a>;</div>
+<div class="line"><a id="l01606" name="l01606"></a><span class="lineno"> 1606</span><span class="comment"></span> </div>
+<div class="line"><a id="l01607" name="l01607"></a><span class="lineno"> 1607</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01608" name="l01608"></a><span class="lineno"> 1608</span><span class="comment">   * While Node::low_lvl_recv_and_handle() or async part of Node::async_wait_latency_then_handle_incoming() is running,</span></div>
+<div class="line"><a id="l01609" name="l01609"></a><span class="lineno"> 1609</span><span class="comment">   * contains the rcv_wnd (eventual #m_snd_remote_rcv_wnd) value in the last observed ACK low-level</span></div>
+<div class="line"><a id="l01610" name="l01610"></a><span class="lineno"> 1610</span><span class="comment">   * packet received in those methods.  The reasoning is similar to #m_rcv_acked_packets.  See</span></div>
+<div class="line"><a id="l01611" name="l01611"></a><span class="lineno"> 1611</span><span class="comment">   * Node::handle_ack_to_established() for details.</span></div>
+<div class="line"><a id="l01612" name="l01612"></a><span class="lineno"> 1612</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01613" name="l01613"></a><span class="lineno"> 1613</span><span class="comment">   * This gains meaning only in thread W and only within Node::low_lvl_recv_and_handle()/etc.</span></div>
+<div class="line"><a id="l01614" name="l01614"></a><span class="lineno"> 1614</span><span class="comment">   * and loses meaning after either method exits.  This should NOT</span></div>
+<div class="line"><a id="l01615" name="l01615"></a><span class="lineno"> 1615</span><span class="comment">   * be accessed outside of thread W and is not protected by a mutex.</span></div>
+<div class="line"><a id="l01616" name="l01616"></a><span class="lineno"> 1616</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01617" name="l01617"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a07d885e5c8ec85e7ef8718dc0468ffe9"> 1617</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a07d885e5c8ec85e7ef8718dc0468ffe9">m_snd_pending_rcv_wnd</a>;</div>
+<div class="line"><a id="l01618" name="l01618"></a><span class="lineno"> 1618</span><span class="comment"></span> </div>
+<div class="line"><a id="l01619" name="l01619"></a><span class="lineno"> 1619</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01620" name="l01620"></a><span class="lineno"> 1620</span><span class="comment">   * The last rcv_wnd value sent to the other side (in an ACK).  This is used to gauge how much the</span></div>
+<div class="line"><a id="l01621" name="l01621"></a><span class="lineno"> 1621</span><span class="comment">   * true rcv_wnd has increased since the value that the sender probably (assuming ACK was not lost)</span></div>
+<div class="line"><a id="l01622" name="l01622"></a><span class="lineno"> 1622</span><span class="comment">   * knows.</span></div>
+<div class="line"><a id="l01623" name="l01623"></a><span class="lineno"> 1623</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01624" name="l01624"></a><span class="lineno"> 1624</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01625" name="l01625"></a><span class="lineno"> 1625</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01626" name="l01626"></a><span class="lineno"> 1626</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01627" name="l01627"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a7fa76b609ef0aa5962d8de77338cf9ee"> 1627</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a7fa76b609ef0aa5962d8de77338cf9ee">m_rcv_last_sent_rcv_wnd</a>;</div>
+<div class="line"><a id="l01628" name="l01628"></a><span class="lineno"> 1628</span><span class="comment"></span> </div>
+<div class="line"><a id="l01629" name="l01629"></a><span class="lineno"> 1629</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01630" name="l01630"></a><span class="lineno"> 1630</span><span class="comment">   * `true` indicates we are in a state where we&#39;ve decided other side needs to be informed that</span></div>
+<div class="line"><a id="l01631" name="l01631"></a><span class="lineno"> 1631</span><span class="comment">   * our receive window has increased substantially, so that it can resume sending data (probably</span></div>
+<div class="line"><a id="l01632" name="l01632"></a><span class="lineno"> 1632</span><span class="comment">   * after a zero window being advertised).</span></div>
+<div class="line"><a id="l01633" name="l01633"></a><span class="lineno"> 1633</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01634" name="l01634"></a><span class="lineno"> 1634</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01635" name="l01635"></a><span class="lineno"> 1635</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01636" name="l01636"></a><span class="lineno"> 1636</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01637" name="l01637"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad7414dfca4b869dd3a4e0de39195c69e"> 1637</a></span>  <span class="keywordtype">bool</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ad7414dfca4b869dd3a4e0de39195c69e">m_rcv_in_rcv_wnd_recovery</a>;</div>
+<div class="line"><a id="l01638" name="l01638"></a><span class="lineno"> 1638</span><span class="comment"></span> </div>
+<div class="line"><a id="l01639" name="l01639"></a><span class="lineno"> 1639</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01640" name="l01640"></a><span class="lineno"> 1640</span><span class="comment">   * Time point at which #m_rcv_in_rcv_wnd_recovery was last set to true.  It is only used when the</span></div>
+<div class="line"><a id="l01641" name="l01641"></a><span class="lineno"> 1641</span><span class="comment">   * latter is indeed true.</span></div>
+<div class="line"><a id="l01642" name="l01642"></a><span class="lineno"> 1642</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01643" name="l01643"></a><span class="lineno"> 1643</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01644" name="l01644"></a><span class="lineno"> 1644</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01645" name="l01645"></a><span class="lineno"> 1645</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01646" name="l01646"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a5476d9206f997fc9119b2a80b078ee87"> 1646</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a5476d9206f997fc9119b2a80b078ee87">m_rcv_wnd_recovery_start_time</a>;</div>
+<div class="line"><a id="l01647" name="l01647"></a><span class="lineno"> 1647</span><span class="comment"></span> </div>
+<div class="line"><a id="l01648" name="l01648"></a><span class="lineno"> 1648</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01649" name="l01649"></a><span class="lineno"> 1649</span><span class="comment">   * When #m_rcv_in_rcv_wnd_recovery is `true`, this is the scheduled task to possibly</span></div>
+<div class="line"><a id="l01650" name="l01650"></a><span class="lineno"> 1650</span><span class="comment">   * send another unsolicited rcv_wnd-advertising ACK to the other side.</span></div>
+<div class="line"><a id="l01651" name="l01651"></a><span class="lineno"> 1651</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01652" name="l01652"></a><span class="lineno"> 1652</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01653" name="l01653"></a><span class="lineno"> 1653</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01654" name="l01654"></a><span class="lineno"> 1654</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01655" name="l01655"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#afd590cc70d06b8e903027e4924fd095a"> 1655</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">util::Scheduled_task_handle</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#afd590cc70d06b8e903027e4924fd095a">m_rcv_wnd_recovery_scheduled_task</a>;</div>
+<div class="line"><a id="l01656" name="l01656"></a><span class="lineno"> 1656</span><span class="comment"></span> </div>
+<div class="line"><a id="l01657" name="l01657"></a><span class="lineno"> 1657</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01658" name="l01658"></a><span class="lineno"> 1658</span><span class="comment">   * Timer started, assuming delayed ACKs are enabled, when the first Individual_ack is placed onto</span></div>
+<div class="line"><a id="l01659" name="l01659"></a><span class="lineno"> 1659</span><span class="comment">   * an empty #m_rcv_pending_acks; when it triggers, the pending individual acknowledgments are packed</span></div>
+<div class="line"><a id="l01660" name="l01660"></a><span class="lineno"> 1660</span><span class="comment">   * into as few as possible ACKs and sent to the other side.  After the handler exits</span></div>
+<div class="line"><a id="l01661" name="l01661"></a><span class="lineno"> 1661</span><span class="comment">   * #m_rcv_pending_acks is again empty and the process can repeat starting with the next received valid</span></div>
+<div class="line"><a id="l01662" name="l01662"></a><span class="lineno"> 1662</span><span class="comment">   * packet.</span></div>
+<div class="line"><a id="l01663" name="l01663"></a><span class="lineno"> 1663</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01664" name="l01664"></a><span class="lineno"> 1664</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01665" name="l01665"></a><span class="lineno"> 1665</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01666" name="l01666"></a><span class="lineno"> 1666</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01667" name="l01667"></a><span class="lineno"> 1667</span><span class="comment">   * ### Implementation notes ###</span></div>
+<div class="line"><a id="l01668" name="l01668"></a><span class="lineno"> 1668</span><span class="comment">   * In other places we have tended to replace a `Timer` with the far simpler util::schedule_task_from_now() (etc.)</span></div>
+<div class="line"><a id="l01669" name="l01669"></a><span class="lineno"> 1669</span><span class="comment">   * facility (which internally uses a `Timer` but hides its various annoyances and caveats).  Why not here?</span></div>
+<div class="line"><a id="l01670" name="l01670"></a><span class="lineno"> 1670</span><span class="comment">   * Answer: This timer is scheduled and fires often (could be on the order of every 1-500 milliseconds) and throughout</span></div>
+<div class="line"><a id="l01671" name="l01671"></a><span class="lineno"> 1671</span><span class="comment">   * a given socket&#39;s existence; hence the potential performance effects aren&#39;t worth the risk (or at least mental</span></div>
+<div class="line"><a id="l01672" name="l01672"></a><span class="lineno"> 1672</span><span class="comment">   * energy spent on evaluating that risk, originally and over time).  The conservative thing to do is reuse a single</span></div>
+<div class="line"><a id="l01673" name="l01673"></a><span class="lineno"> 1673</span><span class="comment">   * `Timer` repeatedly, as we do here.</span></div>
+<div class="line"><a id="l01674" name="l01674"></a><span class="lineno"> 1674</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01675" name="l01675"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a88f967e74f8618c94088113e918ab52f"> 1675</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#ae7416d64d2989051104bb396e28e15e6">util::Timer</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a88f967e74f8618c94088113e918ab52f">m_rcv_delayed_ack_timer</a>;</div>
+<div class="line"><a id="l01676" name="l01676"></a><span class="lineno"> 1676</span><span class="comment"></span> </div>
+<div class="line"><a id="l01677" name="l01677"></a><span class="lineno"> 1677</span><span class="comment">  /// Stats regarding incoming traffic (and resulting outgoing ACKs) for this connection so far.</span></div>
+<div class="line"><a id="l01678" name="l01678"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a7d1f1d381749473f7a2471b8be20d6a8"> 1678</a></span><span class="comment"></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator.html">Peer_socket_receive_stats_accumulator</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a7d1f1d381749473f7a2471b8be20d6a8">m_rcv_stats</a>;</div>
+<div class="line"><a id="l01679" name="l01679"></a><span class="lineno"> 1679</span><span class="comment"></span> </div>
+<div class="line"><a id="l01680" name="l01680"></a><span class="lineno"> 1680</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01681" name="l01681"></a><span class="lineno"> 1681</span><span class="comment">   * The Initial Sequence Number (ISN) used in our original SYN or SYN_ACK.  Useful at least in re-sending the</span></div>
+<div class="line"><a id="l01682" name="l01682"></a><span class="lineno"> 1682</span><span class="comment">   * original SYN or SYN_ACK if unacknowledged for too long.</span></div>
+<div class="line"><a id="l01683" name="l01683"></a><span class="lineno"> 1683</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01684" name="l01684"></a><span class="lineno"> 1684</span><span class="comment">   * @see #m_snd_flying_pkts_by_seq_num and #m_snd_flying_pkts_by_sent_when.</span></div>
+<div class="line"><a id="l01685" name="l01685"></a><span class="lineno"> 1685</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01686" name="l01686"></a><span class="lineno"> 1686</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01687" name="l01687"></a><span class="lineno"> 1687</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01688" name="l01688"></a><span class="lineno"> 1688</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01689" name="l01689"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aca66d1cb582ca027745d1ef847266cc4"> 1689</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aca66d1cb582ca027745d1ef847266cc4">m_snd_init_seq_num</a>;</div>
+<div class="line"><a id="l01690" name="l01690"></a><span class="lineno"> 1690</span><span class="comment"></span> </div>
+<div class="line"><a id="l01691" name="l01691"></a><span class="lineno"> 1691</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01692" name="l01692"></a><span class="lineno"> 1692</span><span class="comment">   * The sequence number for the start of the data in the next new DATA packet to be sent out.  By</span></div>
+<div class="line"><a id="l01693" name="l01693"></a><span class="lineno"> 1693</span><span class="comment">   * &quot;new&quot; I mean not-retransmitted (assuming retransmission is even enabled).</span></div>
+<div class="line"><a id="l01694" name="l01694"></a><span class="lineno"> 1694</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01695" name="l01695"></a><span class="lineno"> 1695</span><span class="comment">   * @todo Possibly #m_snd_next_seq_num will apply to other packet types than DATA, probably anything to do with</span></div>
+<div class="line"><a id="l01696" name="l01696"></a><span class="lineno"> 1696</span><span class="comment">   * connection termination.</span></div>
+<div class="line"><a id="l01697" name="l01697"></a><span class="lineno"> 1697</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01698" name="l01698"></a><span class="lineno"> 1698</span><span class="comment">   * @see #m_snd_flying_pkts_by_seq_num and #m_snd_flying_pkts_by_sent_when.</span></div>
+<div class="line"><a id="l01699" name="l01699"></a><span class="lineno"> 1699</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01700" name="l01700"></a><span class="lineno"> 1700</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01701" name="l01701"></a><span class="lineno"> 1701</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01702" name="l01702"></a><span class="lineno"> 1702</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01703" name="l01703"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a1f8bebf649551131e6ed6e75c6f98d54"> 1703</a></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a1f8bebf649551131e6ed6e75c6f98d54">m_snd_next_seq_num</a>;</div>
+<div class="line"><a id="l01704" name="l01704"></a><span class="lineno"> 1704</span><span class="comment"></span> </div>
+<div class="line"><a id="l01705" name="l01705"></a><span class="lineno"> 1705</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01706" name="l01706"></a><span class="lineno"> 1706</span><span class="comment">   * The collection of all In-flight packets, indexed by sequence number and ordered from most to</span></div>
+<div class="line"><a id="l01707" name="l01707"></a><span class="lineno"> 1707</span><span class="comment">   * least recently sent (including those queued up to wire-send in pacing module).  See also</span></div>
+<div class="line"><a id="l01708" name="l01708"></a><span class="lineno"> 1708</span><span class="comment">   * #m_snd_flying_pkts_by_seq_num which is a similar map but in order of sequence number.</span></div>
+<div class="line"><a id="l01709" name="l01709"></a><span class="lineno"> 1709</span><span class="comment">   * That map&#39;s keys are again sequence numbers, but its values are iterators into the present map</span></div>
+<div class="line"><a id="l01710" name="l01710"></a><span class="lineno"> 1710</span><span class="comment">   * to save memory and avoid having to sync up data between the two (the only thing we must sync between them</span></div>
+<div class="line"><a id="l01711" name="l01711"></a><span class="lineno"> 1711</span><span class="comment">   * are their key sets). The two maps together can be considered to be the sender-side &quot;scoreboard.&quot;</span></div>
+<div class="line"><a id="l01712" name="l01712"></a><span class="lineno"> 1712</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01713" name="l01713"></a><span class="lineno"> 1713</span><span class="comment">   * These are all the packets that have been sent but not Acknowledged that we have not yet considered</span></div>
+<div class="line"><a id="l01714" name="l01714"></a><span class="lineno"> 1714</span><span class="comment">   * Dropped.  (With retransmission on, packets are never considered</span></div>
+<div class="line"><a id="l01715" name="l01715"></a><span class="lineno"> 1715</span><span class="comment">   * permanently Dropped, but they are considered Dropped until retransmitted.)  With retransmission</span></div>
+<div class="line"><a id="l01716" name="l01716"></a><span class="lineno"> 1716</span><span class="comment">   * off, the ultimate goal of having this structure at all is to handle ACKs, the ultimate goal of</span></div>
+<div class="line"><a id="l01717" name="l01717"></a><span class="lineno"> 1717</span><span class="comment">   * which is, in turn, for the In-flight vs. Congestion Window comparison for congestion control.</span></div>
+<div class="line"><a id="l01718" name="l01718"></a><span class="lineno"> 1718</span><span class="comment">   * With retransmission on, the structure additionally stores the data in the In-flight packets, so</span></div>
+<div class="line"><a id="l01719" name="l01719"></a><span class="lineno"> 1719</span><span class="comment">   * that they can be retransmitted if we determine they were probably dropped.</span></div>
+<div class="line"><a id="l01720" name="l01720"></a><span class="lineno"> 1720</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01721" name="l01721"></a><span class="lineno"> 1721</span><span class="comment">   * With retransmission on, this is NOT the retransmission queue itself -- i.e., this does NOT</span></div>
+<div class="line"><a id="l01722" name="l01722"></a><span class="lineno"> 1722</span><span class="comment">   * store packet data that we know should be retransmitted when possible but rather only the data</span></div>
+<div class="line"><a id="l01723" name="l01723"></a><span class="lineno"> 1723</span><span class="comment">   * already In-flight (whether from first attempt or from retransmission).</span></div>
+<div class="line"><a id="l01724" name="l01724"></a><span class="lineno"> 1724</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01725" name="l01725"></a><span class="lineno"> 1725</span><span class="comment">   * Please see #m_snd_flying_pkts_by_seq_num for a breakdown of the sequence number space.</span></div>
+<div class="line"><a id="l01726" name="l01726"></a><span class="lineno"> 1726</span><span class="comment">   * Since that structure contains iterators to exactly the values in the present map, that comment will</span></div>
+<div class="line"><a id="l01727" name="l01727"></a><span class="lineno"> 1727</span><span class="comment">   * explain which packets are in the present map.</span></div>
+<div class="line"><a id="l01728" name="l01728"></a><span class="lineno"> 1728</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01729" name="l01729"></a><span class="lineno"> 1729</span><span class="comment">   * #m_snd_flying_pkts_by_sent_when contains In-flight Sent_packet objects as values, with each particular</span></div>
+<div class="line"><a id="l01730" name="l01730"></a><span class="lineno"> 1730</span><span class="comment">   * Sent_packet&#39;s first sequence number as its key.  If there are no In-flight Sent_packet objects, then</span></div>
+<div class="line"><a id="l01731" name="l01731"></a><span class="lineno"> 1731</span><span class="comment">   * `m_snd_flying_pkts_by_sent_when.empty()`.</span></div>
+<div class="line"><a id="l01732" name="l01732"></a><span class="lineno"> 1732</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01733" name="l01733"></a><span class="lineno"> 1733</span><span class="comment">   * The above is an invariant, to be true at the end of each boost.asio handler in thread W, at</span></div>
+<div class="line"><a id="l01734" name="l01734"></a><span class="lineno"> 1734</span><span class="comment">   * least.</span></div>
+<div class="line"><a id="l01735" name="l01735"></a><span class="lineno"> 1735</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01736" name="l01736"></a><span class="lineno"> 1736</span><span class="comment">   * Each sent packet therefore is placed into #m_snd_flying_pkts_by_sent_when, at the front (as is standard</span></div>
+<div class="line"><a id="l01737" name="l01737"></a><span class="lineno"> 1737</span><span class="comment">   * for a Linked_hash_map, and as is expected, since they are ordered by send time).  (Note, however,</span></div>
+<div class="line"><a id="l01738" name="l01738"></a><span class="lineno"> 1738</span><span class="comment">   * that being in this map does not mean it has been sent; it may only be queued up to be sent and</span></div>
+<div class="line"><a id="l01739" name="l01739"></a><span class="lineno"> 1739</span><span class="comment">   * waiting in the pacing module; however, pacing does not change the order of packets but merely</span></div>
+<div class="line"><a id="l01740" name="l01740"></a><span class="lineno"> 1740</span><span class="comment">   * the exact send moment, which cannot change the position in this queue.)</span></div>
+<div class="line"><a id="l01741" name="l01741"></a><span class="lineno"> 1741</span><span class="comment">   * When a packet is Acknowledged, it is removed from #m_snd_flying_pkts_by_sent_when -- could be from anywhere</span></div>
+<div class="line"><a id="l01742" name="l01742"></a><span class="lineno"> 1742</span><span class="comment">   * in the ordering.   Similarly to Acknowledged packets, Dropped ones are also removed.</span></div>
+<div class="line"><a id="l01743" name="l01743"></a><span class="lineno"> 1743</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01744" name="l01744"></a><span class="lineno"> 1744</span><span class="comment">   * The type used is a map indexed by starting sequence number of each packet but also in order of</span></div>
+<div class="line"><a id="l01745" name="l01745"></a><span class="lineno"> 1745</span><span class="comment">   * being sent out.  Lookup by sequence number is near constant time; insertion near the end is</span></div>
+<div class="line"><a id="l01746" name="l01746"></a><span class="lineno"> 1746</span><span class="comment">   * near constant time; and iteration by order of when it was sent out is easy/fast, with iterators</span></div>
+<div class="line"><a id="l01747" name="l01747"></a><span class="lineno"> 1747</span><span class="comment">   * remaining valid as long as the underlying elements are not erased.  Why use this particular</span></div>
+<div class="line"><a id="l01748" name="l01748"></a><span class="lineno"> 1748</span><span class="comment">   * structure?  Well, the lookup by sequence number occurs all the time, such as when matching up</span></div>
+<div class="line"><a id="l01749" name="l01749"></a><span class="lineno"> 1749</span><span class="comment">   * an arriving acknowledgment against a packet that we&#39;d sent out.  We&#39;d prefer it to not invalidate</span></div>
+<div class="line"><a id="l01750" name="l01750"></a><span class="lineno"> 1750</span><span class="comment">   * iterators when something is erased, so Linked_hash_map is good in that way</span></div>
+<div class="line"><a id="l01751" name="l01751"></a><span class="lineno"> 1751</span><span class="comment">   * also.  So finally, why order by time it was queued up for sending (as opposed to by sequence</span></div>
+<div class="line"><a id="l01752" name="l01752"></a><span class="lineno"> 1752</span><span class="comment">   * number, as would be the case if this were an std::map)?  In truth, both are needed, which is why</span></div>
+<div class="line"><a id="l01753" name="l01753"></a><span class="lineno"> 1753</span><span class="comment">   * #m_snd_flying_pkts_by_seq_num exists.  This ordering is needed particularly for the</span></div>
+<div class="line"><a id="l01754" name="l01754"></a><span class="lineno"> 1754</span><span class="comment">   * `m_acks_after_me` logic, wherein we count how many times packets that were sent after a given packet</span></div>
+<div class="line"><a id="l01755" name="l01755"></a><span class="lineno"> 1755</span><span class="comment">   * have been acknowledged so far; by arranging the packets in that same order, that value can be</span></div>
+<div class="line"><a id="l01756" name="l01756"></a><span class="lineno"> 1756</span><span class="comment">   * easily and quickly accumulated by walking back from the most recently sent packet.  On the other</span></div>
+<div class="line"><a id="l01757" name="l01757"></a><span class="lineno"> 1757</span><span class="comment">   * hand, some operations need sequence number ordering, which is why we have #m_snd_flying_pkts_by_seq_num;</span></div>
+<div class="line"><a id="l01758" name="l01758"></a><span class="lineno"> 1758</span><span class="comment">   * note (again) that the two maps have the same key set, with one&#39;s values being iterators pointing into</span></div>
+<div class="line"><a id="l01759" name="l01759"></a><span class="lineno"> 1759</span><span class="comment">   * the other.</span></div>
+<div class="line"><a id="l01760" name="l01760"></a><span class="lineno"> 1760</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01761" name="l01761"></a><span class="lineno"> 1761</span><span class="comment">   * Whenever a packet with `m_sent_when.back().m_sent_time == T` is acknowledged, we need to (by definition of</span></div>
+<div class="line"><a id="l01762" name="l01762"></a><span class="lineno"> 1762</span><span class="comment">   * Sent_packet::m_acks_after_me) increment `m_acks_after_me` for each packet with</span></div>
+<div class="line"><a id="l01763" name="l01763"></a><span class="lineno"> 1763</span><span class="comment">   * `m_sent_when.back().m_sent_time &lt; T`.  So, if we</span></div>
+<div class="line"><a id="l01764" name="l01764"></a><span class="lineno"> 1764</span><span class="comment">   * find the latest-sent element that satisfies that, then all packets appearing to the right</span></div>
+<div class="line"><a id="l01765" name="l01765"></a><span class="lineno"> 1765</span><span class="comment">   * (i.e., &quot;sent less recently than&quot;) and including that one, in this ordering, should have `m_acks_after_me`</span></div>
+<div class="line"><a id="l01766" name="l01766"></a><span class="lineno"> 1766</span><span class="comment">   * incremented.  Using a certain priority queue-using algorithm (see Node::handle_accumulated_acks())</span></div>
+<div class="line"><a id="l01767" name="l01767"></a><span class="lineno"> 1767</span><span class="comment">   * we can do this quite efficiently.</span></div>
+<div class="line"><a id="l01768" name="l01768"></a><span class="lineno"> 1768</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01769" name="l01769"></a><span class="lineno"> 1769</span><span class="comment">   * Note that this means Sent_packet::m_acks_after_me is strictly increasing as one walks this map.</span></div>
+<div class="line"><a id="l01770" name="l01770"></a><span class="lineno"> 1770</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01771" name="l01771"></a><span class="lineno"> 1771</span><span class="comment">   * Since any packet with `m_acks_after_me &gt;= C`, where `C` is some constant, is considered Dropped and</span></div>
+<div class="line"><a id="l01772" name="l01772"></a><span class="lineno"> 1772</span><span class="comment">   * removed from #m_snd_flying_pkts_by_seq_num and therefore this map also, we also get the property that</span></div>
+<div class="line"><a id="l01773" name="l01773"></a><span class="lineno"> 1773</span><span class="comment">   * if we find a packet in this map for which that is true, then it is also true for all packets</span></div>
+<div class="line"><a id="l01774" name="l01774"></a><span class="lineno"> 1774</span><span class="comment">   * following it (&quot;sent less recently&quot; than it) in this map.  This allows us to more quickly determine which</span></div>
+<div class="line"><a id="l01775" name="l01775"></a><span class="lineno"> 1775</span><span class="comment">   * packets should be removed from #m_snd_flying_pkts_by_sent_when, without having to walk the entire structure(s).</span></div>
+<div class="line"><a id="l01776" name="l01776"></a><span class="lineno"> 1776</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01777" name="l01777"></a><span class="lineno"> 1777</span><span class="comment">   * ### Memory use ###</span></div>
+<div class="line"><a id="l01778" name="l01778"></a><span class="lineno"> 1778</span><span class="comment">   * This structure&#39;s memory use is naturally bounded by the Congestion Window.</span></div>
+<div class="line"><a id="l01779" name="l01779"></a><span class="lineno"> 1779</span><span class="comment">   * Congestion control will not let it grow beyond that many packets (bytes really, but you get the point).</span></div>
+<div class="line"><a id="l01780" name="l01780"></a><span class="lineno"> 1780</span><span class="comment">   * At that point blocks will stay on the Send buffer, until that fills up too.  Then send() will refuse to enqueue</span></div>
+<div class="line"><a id="l01781" name="l01781"></a><span class="lineno"> 1781</span><span class="comment">   * any more packets (telling the user as much).</span></div>
+<div class="line"><a id="l01782" name="l01782"></a><span class="lineno"> 1782</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01783" name="l01783"></a><span class="lineno"> 1783</span><span class="comment">   * ### Thread safety ###</span></div>
+<div class="line"><a id="l01784" name="l01784"></a><span class="lineno"> 1784</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01785" name="l01785"></a><span class="lineno"> 1785</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01786" name="l01786"></a><span class="lineno"> 1786</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01787" name="l01787"></a><span class="lineno"> 1787</span><span class="comment">   * @see Sent_when and Sent_packet::m_sent_when, where if `X` is the the last element of the latter sequence, then</span></div>
+<div class="line"><a id="l01788" name="l01788"></a><span class="lineno"> 1788</span><span class="comment">   *      `X.m_sent_time` is the value by which elements in the present map are ordered.  However, this only</span></div>
+<div class="line"><a id="l01789" name="l01789"></a><span class="lineno"> 1789</span><span class="comment">   *      happens to be the case, because by definition an element</span></div>
+<div class="line"><a id="l01790" name="l01790"></a><span class="lineno"> 1790</span><span class="comment">   *      is always placed at the front of the present map (Linked_hash_map), and this order is inductively maintained;</span></div>
+<div class="line"><a id="l01791" name="l01791"></a><span class="lineno"> 1791</span><span class="comment">   *      AND MEANWHILE A Sent_when::m_sent_time&#39;s constructed value can only increase over time (which is a guaranteed</span></div>
+<div class="line"><a id="l01792" name="l01792"></a><span class="lineno"> 1792</span><span class="comment">   *      property of the clock we use (::Fine_clock)).</span></div>
+<div class="line"><a id="l01793" name="l01793"></a><span class="lineno"> 1793</span><span class="comment">   * @see #m_snd_flying_bytes, which must always be updated to be accurate w/r/t</span></div>
+<div class="line"><a id="l01794" name="l01794"></a><span class="lineno"> 1794</span><span class="comment">   *      #m_snd_flying_pkts_by_sent_when.  Use Node::snd_flying_pkts_updated() whenever</span></div>
+<div class="line"><a id="l01795" name="l01795"></a><span class="lineno"> 1795</span><span class="comment">   *      #m_snd_flying_pkts_by_sent_when is changed.</span></div>
+<div class="line"><a id="l01796" name="l01796"></a><span class="lineno"> 1796</span><span class="comment">   * @see #m_snd_flying_pkts_by_seq_num, which provides an ordering of the elements of</span></div>
+<div class="line"><a id="l01797" name="l01797"></a><span class="lineno"> 1797</span><span class="comment">   *      #m_snd_flying_pkts_by_sent_when by sequence number.  Whereas the present structure is used to</span></div>
+<div class="line"><a id="l01798" name="l01798"></a><span class="lineno"> 1798</span><span class="comment">   *      determine `m_acks_after_me` (since logically &quot;after&quot; means &quot;sent after&quot;), `..._by_seq_num`</span></div>
+<div class="line"><a id="l01799" name="l01799"></a><span class="lineno"> 1799</span><span class="comment">   *      is akin to the more classic TCP scoreboard, which is used to subdivide the sequence number</span></div>
+<div class="line"><a id="l01800" name="l01800"></a><span class="lineno"> 1800</span><span class="comment">   *      space (closely related to #m_snd_next_seq_num and such).  With</span></div>
+<div class="line"><a id="l01801" name="l01801"></a><span class="lineno"> 1801</span><span class="comment">   *      retransmission off, &quot;after&quot; would simply mean &quot;having higher sequence number,&quot; so</span></div>
+<div class="line"><a id="l01802" name="l01802"></a><span class="lineno"> 1802</span><span class="comment">   *      #m_snd_flying_pkts_by_sent_when would already provide this ordering, but with retransmission on</span></div>
+<div class="line"><a id="l01803" name="l01803"></a><span class="lineno"> 1803</span><span class="comment">   *      a retransmitted packet with a lower number could be sent after one with a higher number.</span></div>
+<div class="line"><a id="l01804" name="l01804"></a><span class="lineno"> 1804</span><span class="comment">   *      To make the code simpler, we therefore rely on a separate structure in either situation.</span></div>
+<div class="line"><a id="l01805" name="l01805"></a><span class="lineno"> 1805</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01806" name="l01806"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad"> 1806</a></span>  <a class="code hl_class" href="classflow_1_1util_1_1Linked__hash__map.html">Sent_pkt_by_sent_when_map</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad">m_snd_flying_pkts_by_sent_when</a>;</div>
+<div class="line"><a id="l01807" name="l01807"></a><span class="lineno"> 1807</span><span class="comment"></span> </div>
+<div class="line"><a id="l01808" name="l01808"></a><span class="lineno"> 1808</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01809" name="l01809"></a><span class="lineno"> 1809</span><span class="comment">   * The collection of all In-flight packets (including those queued up to send in pacing module),</span></div>
+<div class="line"><a id="l01810" name="l01810"></a><span class="lineno"> 1810</span><span class="comment">   * indexed AND ordered by sequence number.  See also #m_snd_flying_pkts_by_sent_when which is a similar map</span></div>
+<div class="line"><a id="l01811" name="l01811"></a><span class="lineno"> 1811</span><span class="comment">   * but in order of time sent.  Our map&#39;s keys are sequence numbers again, but its values are iterators</span></div>
+<div class="line"><a id="l01812" name="l01812"></a><span class="lineno"> 1812</span><span class="comment">   * into #m_snd_flying_pkts_by_sent_when to save memory and avoid having to sync up data between the two</span></div>
+<div class="line"><a id="l01813" name="l01813"></a><span class="lineno"> 1813</span><span class="comment">   * (only keys are in sync).  The two maps together can be considered to be the &quot;scoreboard,&quot; though in fact</span></div>
+<div class="line"><a id="l01814" name="l01814"></a><span class="lineno"> 1814</span><span class="comment">   * the present structure alone is closer to a classic TCP scoreboard.</span></div>
+<div class="line"><a id="l01815" name="l01815"></a><span class="lineno"> 1815</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01816" name="l01816"></a><span class="lineno"> 1816</span><span class="comment">   * The key sets of the two maps are identical.  The values in this map are iterators to exactly all</span></div>
+<div class="line"><a id="l01817" name="l01817"></a><span class="lineno"> 1817</span><span class="comment">   * elements of #m_snd_flying_pkts_by_sent_when.  One can think of the present map as essentially achieving an</span></div>
+<div class="line"><a id="l01818" name="l01818"></a><span class="lineno"> 1818</span><span class="comment">   * alternate ordering of the values in the other map.</span></div>
+<div class="line"><a id="l01819" name="l01819"></a><span class="lineno"> 1819</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01820" name="l01820"></a><span class="lineno"> 1820</span><span class="comment">   * That said, the structure&#39;s contents and ordering are closely related to a breakdown of the sequence</span></div>
+<div class="line"><a id="l01821" name="l01821"></a><span class="lineno"> 1821</span><span class="comment">   * number space.  I provide this breakdown here.  I list the</span></div>
+<div class="line"><a id="l01822" name="l01822"></a><span class="lineno"> 1822</span><span class="comment">   * sequence number ranges in increasing order starting with the ISN.  Let `first_flying_seq_num</span></div>
+<div class="line"><a id="l01823" name="l01823"></a><span class="lineno"> 1823</span><span class="comment">   * = m_snd_flying_pkts_by_seq_num.begin()-&gt;first` (i.e., the first key Sequence_number in</span></div>
+<div class="line"><a id="l01824" name="l01824"></a><span class="lineno"> 1824</span><span class="comment">   * #m_snd_flying_pkts_by_seq_num) for exposition purposes.</span></div>
+<div class="line"><a id="l01825" name="l01825"></a><span class="lineno"> 1825</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01826" name="l01826"></a><span class="lineno"> 1826</span><span class="comment">   *   - #m_snd_init_seq_num =</span></div>
+<div class="line"><a id="l01827" name="l01827"></a><span class="lineno"> 1827</span><span class="comment">   *     - SYN or SYN_ACK</span></div>
+<div class="line"><a id="l01828" name="l01828"></a><span class="lineno"> 1828</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01829" name="l01829"></a><span class="lineno"> 1829</span><span class="comment">   *   - [`m_snd_init_seq_num + 1`, `first_flying_seq_num - 1`] =</span></div>
+<div class="line"><a id="l01830" name="l01830"></a><span class="lineno"> 1830</span><span class="comment">   *     - Largest possible range of sequence numbers such that each datum represented by this range</span></div>
+<div class="line"><a id="l01831" name="l01831"></a><span class="lineno"> 1831</span><span class="comment">   *       has been sent and either:</span></div>
+<div class="line"><a id="l01832" name="l01832"></a><span class="lineno"> 1832</span><span class="comment">   *       - Acknowledged (ACK received for it); or</span></div>
+<div class="line"><a id="l01833" name="l01833"></a><span class="lineno"> 1833</span><span class="comment">   *       - Dropped (ACK not received; we consider it dropped due to some factor like timeout or</span></div>
+<div class="line"><a id="l01834" name="l01834"></a><span class="lineno"> 1834</span><span class="comment">   *         duplicate ACKs);</span></div>
+<div class="line"><a id="l01835" name="l01835"></a><span class="lineno"> 1835</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01836" name="l01836"></a><span class="lineno"> 1836</span><span class="comment">   *   - [`first_flying_seq_num`, `first_flying_seq_num + N - 1`] =</span></div>
+<div class="line"><a id="l01837" name="l01837"></a><span class="lineno"> 1837</span><span class="comment">   *     - The first packet that has been sent that is neither Acknowledged nor Dropped.  `N` is length</span></div>
+<div class="line"><a id="l01838" name="l01838"></a><span class="lineno"> 1838</span><span class="comment">   *       of that packet.  This is always the first packet, if any, to be considered Dropped in the</span></div>
+<div class="line"><a id="l01839" name="l01839"></a><span class="lineno"> 1839</span><span class="comment">   *       future.  This packet is categorized In-flight.</span></div>
+<div class="line"><a id="l01840" name="l01840"></a><span class="lineno"> 1840</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01841" name="l01841"></a><span class="lineno"> 1841</span><span class="comment">   *   - [`first_flying_seq_num + N`, `m_snd_next_seq_num - 1`] =</span></div>
+<div class="line"><a id="l01842" name="l01842"></a><span class="lineno"> 1842</span><span class="comment">   *       - All remaining sent packets.  Each packet in this range is one of the following:</span></div>
+<div class="line"><a id="l01843" name="l01843"></a><span class="lineno"> 1843</span><span class="comment">   *         - Acknowledged;</span></div>
+<div class="line"><a id="l01844" name="l01844"></a><span class="lineno"> 1844</span><span class="comment">   *         - not Acknowledged and not Dropped = categorized In-flight.</span></div>
+<div class="line"><a id="l01845" name="l01845"></a><span class="lineno"> 1845</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01846" name="l01846"></a><span class="lineno"> 1846</span><span class="comment">   *   - [#m_snd_next_seq_num, ...] =</span></div>
+<div class="line"><a id="l01847" name="l01847"></a><span class="lineno"> 1847</span><span class="comment">   *     - Unsent packets, if any.</span></div>
+<div class="line"><a id="l01848" name="l01848"></a><span class="lineno"> 1848</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01849" name="l01849"></a><span class="lineno"> 1849</span><span class="comment">   * #m_snd_flying_pkts_by_sent_when and #m_snd_flying_pkts_by_seq_num contain In-flight Sent_packet objects as values</span></div>
+<div class="line"><a id="l01850" name="l01850"></a><span class="lineno"> 1850</span><span class="comment">   * (though the latter indirectly via iterator into the former) with each particular Sent_packet&#39;s first sequence</span></div>
+<div class="line"><a id="l01851" name="l01851"></a><span class="lineno"> 1851</span><span class="comment">   * number as its key in either structure.  If there are no In-flight Sent_packet objects, then</span></div>
+<div class="line"><a id="l01852" name="l01852"></a><span class="lineno"> 1852</span><span class="comment">   * `m_snd_flying_pkts_by_{sent_when|seq_num}.empty()` and hence `first_flying_seq_num` above does not</span></div>
+<div class="line"><a id="l01853" name="l01853"></a><span class="lineno"> 1853</span><span class="comment">   * exist. Each of the [ranges] above can be null (empty).</span></div>
+<div class="line"><a id="l01854" name="l01854"></a><span class="lineno"> 1854</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01855" name="l01855"></a><span class="lineno"> 1855</span><span class="comment">   * Each sent packet therefore is placed into #m_snd_flying_pkts_by_seq_num, at the back (if it&#39;s a new packet) or</span></div>
+<div class="line"><a id="l01856" name="l01856"></a><span class="lineno"> 1856</span><span class="comment">   * possibly elsewhere (if it&#39;s retransmitted) -- while it is also placed into #m_snd_flying_pkts_by_sent_when but</span></div>
+<div class="line"><a id="l01857" name="l01857"></a><span class="lineno"> 1857</span><span class="comment">   * always at the front (as, regardless of retransmission or anything else, it is the latest packet to be SENT).  When</span></div>
+<div class="line"><a id="l01858" name="l01858"></a><span class="lineno"> 1858</span><span class="comment">   * packet is Acknowledged, it is removed from `m_snd_flying_pkts_by_*` -- could be from anywhere in</span></div>
+<div class="line"><a id="l01859" name="l01859"></a><span class="lineno"> 1859</span><span class="comment">   * the ordering.  Similarly to Acknowledged packets, Dropped ones are also removed.</span></div>
+<div class="line"><a id="l01860" name="l01860"></a><span class="lineno"> 1860</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01861" name="l01861"></a><span class="lineno"> 1861</span><span class="comment">   * Why do we need this map type in addition to `Linked_hash_map m_snd_flying_pkts_by_sent_when`?  Answer: Essentially,</span></div>
+<div class="line"><a id="l01862" name="l01862"></a><span class="lineno"> 1862</span><span class="comment">   * when an acknowledgment comes in, we need to be able to determine where in the sequence number space this is.</span></div>
+<div class="line"><a id="l01863" name="l01863"></a><span class="lineno"> 1863</span><span class="comment">   * If packets are ordered by send time -- not sequence number -- and the sequence number does not match</span></div>
+<div class="line"><a id="l01864" name="l01864"></a><span class="lineno"> 1864</span><span class="comment">   * exactly one of the elements here (e.g., it erroneously straddles one, or it is a duplicate acknowledgement,</span></div>
+<div class="line"><a id="l01865" name="l01865"></a><span class="lineno"> 1865</span><span class="comment">   * which means that element isn&#39;t in the map any longer), then a tree-sorted-by-key map is invaluable</span></div>
+<div class="line"><a id="l01866" name="l01866"></a><span class="lineno"> 1866</span><span class="comment">   * (in particular: to get `upper_bound()`, and also to travel to the previous-by-sequence-number packet</span></div>
+<div class="line"><a id="l01867" name="l01867"></a><span class="lineno"> 1867</span><span class="comment">   * from the latter).  So logarithmic-time upper-bound searches and iteration by sequence number are what we want and</span></div>
+<div class="line"><a id="l01868" name="l01868"></a><span class="lineno"> 1868</span><span class="comment">   * get with this added ordering on top of #m_snd_flying_pkts_by_sent_when.</span></div>
+<div class="line"><a id="l01869" name="l01869"></a><span class="lineno"> 1869</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01870" name="l01870"></a><span class="lineno"> 1870</span><span class="comment">   * ### Memory use ###</span></div>
+<div class="line"><a id="l01871" name="l01871"></a><span class="lineno"> 1871</span><span class="comment">   * This structure&#39;s memory use is naturally bounded the same as #m_snd_flying_pkts_by_sent_when.</span></div>
+<div class="line"><a id="l01872" name="l01872"></a><span class="lineno"> 1872</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01873" name="l01873"></a><span class="lineno"> 1873</span><span class="comment">   * ### Thread safety ###</span></div>
+<div class="line"><a id="l01874" name="l01874"></a><span class="lineno"> 1874</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01875" name="l01875"></a><span class="lineno"> 1875</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01876" name="l01876"></a><span class="lineno"> 1876</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01877" name="l01877"></a><span class="lineno"> 1877</span><span class="comment">   * @see #m_snd_flying_pkts_by_sent_when. There&#39;s a &quot;see also&quot; comment there that contrasts these two</span></div>
+<div class="line"><a id="l01878" name="l01878"></a><span class="lineno"> 1878</span><span class="comment">   *      important structures.</span></div>
+<div class="line"><a id="l01879" name="l01879"></a><span class="lineno"> 1879</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01880" name="l01880"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a2db7d11ece920d4adcacd00eaa2253fd"> 1880</a></span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a1958264af0c40f3c9c5769ddff4c9ade">Sent_pkt_by_seq_num_map</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a2db7d11ece920d4adcacd00eaa2253fd">m_snd_flying_pkts_by_seq_num</a>;</div>
+<div class="line"><a id="l01881" name="l01881"></a><span class="lineno"> 1881</span><span class="comment"></span> </div>
+<div class="line"><a id="l01882" name="l01882"></a><span class="lineno"> 1882</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01883" name="l01883"></a><span class="lineno"> 1883</span><span class="comment">   * The number of bytes contained in all In-flight packets, used at least for comparison against</span></div>
+<div class="line"><a id="l01884" name="l01884"></a><span class="lineno"> 1884</span><span class="comment">   * the congestion window (CWND).  More formally, this is the sum of all Sent_packet::m_size values</span></div>
+<div class="line"><a id="l01885" name="l01885"></a><span class="lineno"> 1885</span><span class="comment">   * in #m_snd_flying_pkts_by_sent_when.  We keep this, instead of computing it whenever needed, for</span></div>
+<div class="line"><a id="l01886" name="l01886"></a><span class="lineno"> 1886</span><span class="comment">   * performance.  In various TCP and related RFCs this value (or something spiritually similar, if</span></div>
+<div class="line"><a id="l01887" name="l01887"></a><span class="lineno"> 1887</span><span class="comment">   * only cumulative ACKs are used) is called &quot;pipe&quot; or &quot;FlightSize.&quot;</span></div>
+<div class="line"><a id="l01888" name="l01888"></a><span class="lineno"> 1888</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01889" name="l01889"></a><span class="lineno"> 1889</span><span class="comment">   * Though in protocols like DCCP, where CWND is stored in packets, instead of bytes, &quot;pipe&quot; is</span></div>
+<div class="line"><a id="l01890" name="l01890"></a><span class="lineno"> 1890</span><span class="comment">   * actually just `m_snd_flying_pkts_by_sent_when.size()`.  Not for us though.</span></div>
+<div class="line"><a id="l01891" name="l01891"></a><span class="lineno"> 1891</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01892" name="l01892"></a><span class="lineno"> 1892</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01893" name="l01893"></a><span class="lineno"> 1893</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01894" name="l01894"></a><span class="lineno"> 1894</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01895" name="l01895"></a><span class="lineno"> 1895</span><span class="comment">   * @see #m_snd_flying_pkts_by_sent_when, which must always be updated to be accurate w/r/t</span></div>
+<div class="line"><a id="l01896" name="l01896"></a><span class="lineno"> 1896</span><span class="comment">   *      #m_snd_flying_bytes.  Use Node::snd_flying_pkts_updated() whenever #m_snd_flying_pkts_by_sent_when</span></div>
+<div class="line"><a id="l01897" name="l01897"></a><span class="lineno"> 1897</span><span class="comment">   *      is changed.</span></div>
+<div class="line"><a id="l01898" name="l01898"></a><span class="lineno"> 1898</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01899" name="l01899"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ae870847f024fca7109c15557bb165480"> 1899</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ae870847f024fca7109c15557bb165480">m_snd_flying_bytes</a>;</div>
+<div class="line"><a id="l01900" name="l01900"></a><span class="lineno"> 1900</span><span class="comment"></span> </div>
+<div class="line"><a id="l01901" name="l01901"></a><span class="lineno"> 1901</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01902" name="l01902"></a><span class="lineno"> 1902</span><span class="comment">   * Helper data structure to store the packet IDs of packets that are marked Dropped during a single run</span></div>
+<div class="line"><a id="l01903" name="l01903"></a><span class="lineno"> 1903</span><span class="comment">   * through accumulated ACKs; it is a data member instead of local variable for performance only.  The pattern is</span></div>
+<div class="line"><a id="l01904" name="l01904"></a><span class="lineno"> 1904</span><span class="comment">   * to simply `clear()` it just before use, then load it up with stuff in that same round of ACK handling;</span></div>
+<div class="line"><a id="l01905" name="l01905"></a><span class="lineno"> 1905</span><span class="comment">   * and the same thing each time we need to handle accumulated ACKs.  Normally one would just create one</span></div>
+<div class="line"><a id="l01906" name="l01906"></a><span class="lineno"> 1906</span><span class="comment">   * of these locally within the code `{` block `}` each time instead.</span></div>
+<div class="line"><a id="l01907" name="l01907"></a><span class="lineno"> 1907</span><span class="comment">   * Not doing so avoids unnecessary various internal-to-`vector` buffer</span></div>
+<div class="line"><a id="l01908" name="l01908"></a><span class="lineno"> 1908</span><span class="comment">   * allocations.  Instead the internal buffer will grow as large as it needs to and not go down from there, so</span></div>
+<div class="line"><a id="l01909" name="l01909"></a><span class="lineno"> 1909</span><span class="comment">   * that it can be reused in subsequent operations.  (Even `clear()` does not internally shrink the buffer.)</span></div>
+<div class="line"><a id="l01910" name="l01910"></a><span class="lineno"> 1910</span><span class="comment">   * Of course some memory is held unnecessarily, but it&#39;s a small amount; on the other hand the performance</span></div>
+<div class="line"><a id="l01911" name="l01911"></a><span class="lineno"> 1911</span><span class="comment">   * gain may be non-trivial due to the frequency of the ACK-handling code being invoked.</span></div>
+<div class="line"><a id="l01912" name="l01912"></a><span class="lineno"> 1912</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01913" name="l01913"></a><span class="lineno"> 1913</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01914" name="l01914"></a><span class="lineno"> 1914</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01915" name="l01915"></a><span class="lineno"> 1915</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01916" name="l01916"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aea98297d775f2085c21daf41c6582200"> 1916</a></span>  std::vector&lt;order_num_t&gt; <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aea98297d775f2085c21daf41c6582200">m_snd_temp_pkts_marked_to_drop</a>;</div>
+<div class="line"><a id="l01917" name="l01917"></a><span class="lineno"> 1917</span><span class="comment"></span> </div>
+<div class="line"><a id="l01918" name="l01918"></a><span class="lineno"> 1918</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01919" name="l01919"></a><span class="lineno"> 1919</span><span class="comment">   * For the Sent_packet representing the next packet to be sent, this is the value to assign to</span></div>
+<div class="line"><a id="l01920" name="l01920"></a><span class="lineno"> 1920</span><span class="comment">   * `m_sent_when.back().first`.  In other words it&#39;s an ever-increasing number that is sort of like</span></div>
+<div class="line"><a id="l01921" name="l01921"></a><span class="lineno"> 1921</span><span class="comment">   * a sequence number but one per packet and represents time at which sent, not order in the byte stream.</span></div>
+<div class="line"><a id="l01922" name="l01922"></a><span class="lineno"> 1922</span><span class="comment">   * In particular the same packet retransmitted will have the same sequence number the 2nd time but</span></div>
+<div class="line"><a id="l01923" name="l01923"></a><span class="lineno"> 1923</span><span class="comment">   * an increased order number.  Starts at 0.</span></div>
+<div class="line"><a id="l01924" name="l01924"></a><span class="lineno"> 1924</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01925" name="l01925"></a><span class="lineno"> 1925</span><span class="comment">   * This is only used for book-keeping locally and never transmitted over network.</span></div>
+<div class="line"><a id="l01926" name="l01926"></a><span class="lineno"> 1926</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01927" name="l01927"></a><span class="lineno"> 1927</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01928" name="l01928"></a><span class="lineno"> 1928</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01929" name="l01929"></a><span class="lineno"> 1929</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01930" name="l01930"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a1ec79951579d595bb790be87189d6e6c"> 1930</a></span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">order_num_t</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a1ec79951579d595bb790be87189d6e6c">m_snd_last_order_num</a>;</div>
+<div class="line"><a id="l01931" name="l01931"></a><span class="lineno"> 1931</span><span class="comment"></span> </div>
+<div class="line"><a id="l01932" name="l01932"></a><span class="lineno"> 1932</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01933" name="l01933"></a><span class="lineno"> 1933</span><span class="comment">   * If retransmission is on, this is the retransmission queue.  It&#39;s the queue of packets determined to have</span></div>
+<div class="line"><a id="l01934" name="l01934"></a><span class="lineno"> 1934</span><span class="comment">   * been dropped and thus to be retransmitted, when Congestion Window allows this.  Packet in Sent_packet::m_packet</span></div>
+<div class="line"><a id="l01935" name="l01935"></a><span class="lineno"> 1935</span><span class="comment">   * field of element at top of the queue is to be retransmitted next; and the element itself is to be inserted into</span></div>
+<div class="line"><a id="l01936" name="l01936"></a><span class="lineno"> 1936</span><span class="comment">   * #m_snd_flying_pkts_by_sent_when while popped from the present structure.  The packet&#39;s Data_packet::m_rexmit_id</span></div>
+<div class="line"><a id="l01937" name="l01937"></a><span class="lineno"> 1937</span><span class="comment">   * should be incremented before sending; and the Sent_packet::m_sent_when `vector` should be appended with the</span></div>
+<div class="line"><a id="l01938" name="l01938"></a><span class="lineno"> 1938</span><span class="comment">   * then-current time (for future RTT calculation).</span></div>
+<div class="line"><a id="l01939" name="l01939"></a><span class="lineno"> 1939</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01940" name="l01940"></a><span class="lineno"> 1940</span><span class="comment">   * If retransmission is off, this is empty.</span></div>
+<div class="line"><a id="l01941" name="l01941"></a><span class="lineno"> 1941</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01942" name="l01942"></a><span class="lineno"> 1942</span><span class="comment">   * Why use `list&lt;&gt;` and not `queue&lt;&gt;` or `deque&lt;&gt;`?  Answer: I&#39;d like to use `list::splice()`.</span></div>
+<div class="line"><a id="l01943" name="l01943"></a><span class="lineno"> 1943</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01944" name="l01944"></a><span class="lineno"> 1944</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01945" name="l01945"></a><span class="lineno"> 1945</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01946" name="l01946"></a><span class="lineno"> 1946</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01947" name="l01947"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a845f21b754ef641b65b1fe44727fb429"> 1947</a></span>  std::list&lt;boost::shared_ptr&lt;Sent_packet&gt;&gt; <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a845f21b754ef641b65b1fe44727fb429">m_snd_rexmit_q</a>;</div>
+<div class="line"><a id="l01948" name="l01948"></a><span class="lineno"> 1948</span><span class="comment"></span> </div>
+<div class="line"><a id="l01949" name="l01949"></a><span class="lineno"> 1949</span><span class="comment">  /// Equals `m_snd_rexmit_q.size().`  Kept since `m_snd_rexmit_q.size()` may be @em O(n) depending on implementation.</span></div>
+<div class="line"><a id="l01950" name="l01950"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a9f5063c85a2070822cf69a530f0af1f5"> 1950</a></span><span class="comment"></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a9f5063c85a2070822cf69a530f0af1f5">m_snd_rexmit_q_size</a>;</div>
+<div class="line"><a id="l01951" name="l01951"></a><span class="lineno"> 1951</span><span class="comment"></span> </div>
+<div class="line"><a id="l01952" name="l01952"></a><span class="lineno"> 1952</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01953" name="l01953"></a><span class="lineno"> 1953</span><span class="comment">   * The congestion control strategy in use for this connection on this side.  Node informs</span></div>
+<div class="line"><a id="l01954" name="l01954"></a><span class="lineno"> 1954</span><span class="comment">   * this object of events, such as acknowedgments and loss events; conversely this object informs</span></div>
+<div class="line"><a id="l01955" name="l01955"></a><span class="lineno"> 1955</span><span class="comment">   * (or can inform if asked) the Node whether or not DATA packets can be sent, by means of</span></div>
+<div class="line"><a id="l01956" name="l01956"></a><span class="lineno"> 1956</span><span class="comment">   * providing the Node with the socket&#39;s current Congestion Window (CWND) computed based on the</span></div>
+<div class="line"><a id="l01957" name="l01957"></a><span class="lineno"> 1957</span><span class="comment">   * particular Congestion_control_strategy implementation&#39;s algorithm (e.g., Reno or Westwood+).</span></div>
+<div class="line"><a id="l01958" name="l01958"></a><span class="lineno"> 1958</span><span class="comment">   * Node then determines whether data can be sent by comparing #m_snd_flying_bytes (# of bytes we think</span></div>
+<div class="line"><a id="l01959" name="l01959"></a><span class="lineno"> 1959</span><span class="comment">   * are currently In-flight) to CWND (# of bytes the strategy allows to be In-flight currently).</span></div>
+<div class="line"><a id="l01960" name="l01960"></a><span class="lineno"> 1960</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01961" name="l01961"></a><span class="lineno"> 1961</span><span class="comment">   * ### Life cycle ###</span></div>
+<div class="line"><a id="l01962" name="l01962"></a><span class="lineno"> 1962</span><span class="comment">   * #m_snd_cong_ctl must be initialized to an instance before user gains access to this</span></div>
+<div class="line"><a id="l01963" name="l01963"></a><span class="lineno"> 1963</span><span class="comment">   * socket; the pointer must never change subsequently except back to null (permanently).  The</span></div>
+<div class="line"><a id="l01964" name="l01964"></a><span class="lineno"> 1964</span><span class="comment">   * Peer_socket destructor, at the latest, will delete the underlying object, as #m_snd_cong_ctl</span></div>
+<div class="line"><a id="l01965" name="l01965"></a><span class="lineno"> 1965</span><span class="comment">   * will be destructed.  (Note `unique_ptr` has no copy operator or</span></div>
+<div class="line"><a id="l01966" name="l01966"></a><span class="lineno"> 1966</span><span class="comment">   * constructor.)  There is a 1-to-1 relationship between `*this` and #m_snd_cong_ctl.</span></div>
+<div class="line"><a id="l01967" name="l01967"></a><span class="lineno"> 1967</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01968" name="l01968"></a><span class="lineno"> 1968</span><span class="comment">   * ### Visibility between Congestion_control_strategy and Peer_socket ###</span></div>
+<div class="line"><a id="l01969" name="l01969"></a><span class="lineno"> 1969</span><span class="comment">   * #m_snd_cong_ctl gets read-only (`const`!) but otherwise complete</span></div>
+<div class="line"><a id="l01970" name="l01970"></a><span class="lineno"> 1970</span><span class="comment">   * private access (via `friend`) to the contents of `*this` Peer_socket.  For example, it can</span></div>
+<div class="line"><a id="l01971" name="l01971"></a><span class="lineno"> 1971</span><span class="comment">   * read `this-&gt;m_snd_smoothed_round_trip_time` (the SRTT) and use it</span></div>
+<div class="line"><a id="l01972" name="l01972"></a><span class="lineno"> 1972</span><span class="comment">   * for computations if needed.  Node and Peer_socket get only strict public API access to</span></div>
+<div class="line"><a id="l01973" name="l01973"></a><span class="lineno"> 1973</span><span class="comment">   * #m_snd_cong_ctl, which is a black box to it.</span></div>
+<div class="line"><a id="l01974" name="l01974"></a><span class="lineno"> 1974</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01975" name="l01975"></a><span class="lineno"> 1975</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01976" name="l01976"></a><span class="lineno"> 1976</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01977" name="l01977"></a><span class="lineno"> 1977</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01978" name="l01978"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a35eb43f2b5d7dd46a941def4523f673c"> 1978</a></span>  boost::movelib::unique_ptr&lt;Congestion_control_strategy&gt; <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a35eb43f2b5d7dd46a941def4523f673c">m_snd_cong_ctl</a>;</div>
+<div class="line"><a id="l01979" name="l01979"></a><span class="lineno"> 1979</span><span class="comment"></span> </div>
+<div class="line"><a id="l01980" name="l01980"></a><span class="lineno"> 1980</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01981" name="l01981"></a><span class="lineno"> 1981</span><span class="comment">   * The receive window: the maximum number of bytes the other side has advertised it would be</span></div>
+<div class="line"><a id="l01982" name="l01982"></a><span class="lineno"> 1982</span><span class="comment">   * willing to accept into its Receive buffer if they&#39;d arrived at the moment that advertisement</span></div>
+<div class="line"><a id="l01983" name="l01983"></a><span class="lineno"> 1983</span><span class="comment">   * was generated by the other side.  This starts as 0 (undefined) and is originally set at SYN_ACK</span></div>
+<div class="line"><a id="l01984" name="l01984"></a><span class="lineno"> 1984</span><span class="comment">   * or SYN_ACK_ACK receipt and then subsequently updated upon each ACK received.  Each such update</span></div>
+<div class="line"><a id="l01985" name="l01985"></a><span class="lineno"> 1985</span><span class="comment">   * is called a &quot;rcv_wnd update&quot; or &quot;window update.&quot;</span></div>
+<div class="line"><a id="l01986" name="l01986"></a><span class="lineno"> 1986</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01987" name="l01987"></a><span class="lineno"> 1987</span><span class="comment">   * #m_snd_cong_ctl provides congestion control; this value provides flow control.  The socket&#39;s</span></div>
+<div class="line"><a id="l01988" name="l01988"></a><span class="lineno"> 1988</span><span class="comment">   * state machine must be extremely careful whenever either this value or</span></div>
+<div class="line"><a id="l01989" name="l01989"></a><span class="lineno"> 1989</span><span class="comment">   * `m_snd_cong_ctl-&gt;congestion_window_bytes()` may increase, as when that occurs it should call</span></div>
+<div class="line"><a id="l01990" name="l01990"></a><span class="lineno"> 1990</span><span class="comment">   * Node::send_worker() in order to possibly send data over the network.</span></div>
+<div class="line"><a id="l01991" name="l01991"></a><span class="lineno"> 1991</span><span class="comment">   *</span></div>
+<div class="line"><a id="l01992" name="l01992"></a><span class="lineno"> 1992</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l01993" name="l01993"></a><span class="lineno"> 1993</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l01994" name="l01994"></a><span class="lineno"> 1994</span><span class="comment">   */</span></div>
+<div class="line"><a id="l01995" name="l01995"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a12611e0ac9e8b86b8304b855050a8c8c"> 1995</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a12611e0ac9e8b86b8304b855050a8c8c">m_snd_remote_rcv_wnd</a>;</div>
+<div class="line"><a id="l01996" name="l01996"></a><span class="lineno"> 1996</span><span class="comment"></span> </div>
+<div class="line"><a id="l01997" name="l01997"></a><span class="lineno"> 1997</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l01998" name="l01998"></a><span class="lineno"> 1998</span><span class="comment">   * The outgoing available bandwidth estimator for this connection on this side.  Node informs</span></div>
+<div class="line"><a id="l01999" name="l01999"></a><span class="lineno"> 1999</span><span class="comment">   * this object of events, namely as acknowedgments; conversely this object informs</span></div>
+<div class="line"><a id="l02000" name="l02000"></a><span class="lineno"> 2000</span><span class="comment">   * (or can inform if asked) the Node what it thinks is the current available bandwidth for</span></div>
+<div class="line"><a id="l02001" name="l02001"></a><span class="lineno"> 2001</span><span class="comment">   * user data in DATA packets.  This can be useful at least for some forms of congestion control</span></div>
+<div class="line"><a id="l02002" name="l02002"></a><span class="lineno"> 2002</span><span class="comment">   * but possibly as information for the user, which is why it&#39;s an independent object and not</span></div>
+<div class="line"><a id="l02003" name="l02003"></a><span class="lineno"> 2003</span><span class="comment">   * part of a specific congestion control strategy (I only mention this because the mechanics of such</span></div>
+<div class="line"><a id="l02004" name="l02004"></a><span class="lineno"> 2004</span><span class="comment">   * a bandwidth estimator typically originate in service of a congestion control algorithm like Westwood+).</span></div>
+<div class="line"><a id="l02005" name="l02005"></a><span class="lineno"> 2005</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02006" name="l02006"></a><span class="lineno"> 2006</span><span class="comment">   * ### Life cycle ###</span></div>
+<div class="line"><a id="l02007" name="l02007"></a><span class="lineno"> 2007</span><span class="comment">   * It must be initialized to an instance before user gains access to this</span></div>
+<div class="line"><a id="l02008" name="l02008"></a><span class="lineno"> 2008</span><span class="comment">   * socket; the pointer must never change subsequently except back to null (permanently).  The</span></div>
+<div class="line"><a id="l02009" name="l02009"></a><span class="lineno"> 2009</span><span class="comment">   * Peer_socket destructor, at the latest, will delete the underlying object, as #m_snd_bandwidth_estimator</span></div>
+<div class="line"><a id="l02010" name="l02010"></a><span class="lineno"> 2010</span><span class="comment">   * is destroyed along with `*this`.  The only reason it&#39;s a pointer is that it takes a Const_ptr in the constructor,</span></div>
+<div class="line"><a id="l02011" name="l02011"></a><span class="lineno"> 2011</span><span class="comment">   * and that&#39;s not available during Peer_socket construction yet.  (Note `unique_ptr` has no copy operator or</span></div>
+<div class="line"><a id="l02012" name="l02012"></a><span class="lineno"> 2012</span><span class="comment">   * constructor.)  There is a 1-to-1 relationship between `*this` and #m_snd_bandwidth_estimator.</span></div>
+<div class="line"><a id="l02013" name="l02013"></a><span class="lineno"> 2013</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02014" name="l02014"></a><span class="lineno"> 2014</span><span class="comment">   * ### Visibility between Send_bandwidth_estimator and Peer_socket ###</span></div>
+<div class="line"><a id="l02015" name="l02015"></a><span class="lineno"> 2015</span><span class="comment">   * The former gets read-only (`const`!) but otherwise complete private access (via `friend`) to the contents of</span></div>
+<div class="line"><a id="l02016" name="l02016"></a><span class="lineno"> 2016</span><span class="comment">   * `*this` Peer_socket.  For example, it can read #m_snd_smoothed_round_trip_time (the SRTT) and use it</span></div>
+<div class="line"><a id="l02017" name="l02017"></a><span class="lineno"> 2017</span><span class="comment">   * for computations if needed.  Node and Peer_socket get only strict public API access to</span></div>
+<div class="line"><a id="l02018" name="l02018"></a><span class="lineno"> 2018</span><span class="comment">   * #m_snd_bandwidth_estimator, which is a black box to it.</span></div>
+<div class="line"><a id="l02019" name="l02019"></a><span class="lineno"> 2019</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02020" name="l02020"></a><span class="lineno"> 2020</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l02021" name="l02021"></a><span class="lineno"> 2021</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l02022" name="l02022"></a><span class="lineno"> 2022</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02023" name="l02023"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a2dd08c5fed4d179e4fde3a632c084751"> 2023</a></span>  boost::movelib::unique_ptr&lt;Send_bandwidth_estimator&gt; <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a2dd08c5fed4d179e4fde3a632c084751">m_snd_bandwidth_estimator</a>;</div>
+<div class="line"><a id="l02024" name="l02024"></a><span class="lineno"> 2024</span><span class="comment"></span> </div>
+<div class="line"><a id="l02025" name="l02025"></a><span class="lineno"> 2025</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02026" name="l02026"></a><span class="lineno"> 2026</span><span class="comment">   * Estimated current round trip time of packets, computed as a smooth value over the</span></div>
+<div class="line"><a id="l02027" name="l02027"></a><span class="lineno"> 2027</span><span class="comment">   * past individual RTT measurements.  This is updated each time we make an RTT measurement (i.e.,</span></div>
+<div class="line"><a id="l02028" name="l02028"></a><span class="lineno"> 2028</span><span class="comment">   * receive a valid, non-duplicate acknowledgment of a packet we&#39;d sent).  The algorithm to compute</span></div>
+<div class="line"><a id="l02029" name="l02029"></a><span class="lineno"> 2029</span><span class="comment">   * it is taken from RFC 6298.  The value is 0 (not a legal value otherwise) until the first RTT</span></div>
+<div class="line"><a id="l02030" name="l02030"></a><span class="lineno"> 2030</span><span class="comment">   * measurement is made.</span></div>
+<div class="line"><a id="l02031" name="l02031"></a><span class="lineno"> 2031</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02032" name="l02032"></a><span class="lineno"> 2032</span><span class="comment">   * We use #Fine_duration (the high fine-grainedness and large bit width corresponding to #Fine_clock) to</span></div>
+<div class="line"><a id="l02033" name="l02033"></a><span class="lineno"> 2033</span><span class="comment">   * store this, and the algorithm we use to compute it avoids losing digits via unnecessary</span></div>
+<div class="line"><a id="l02034" name="l02034"></a><span class="lineno"> 2034</span><span class="comment">   * conversions between units (e.g., nanoseconds -&gt; milliseconds).</span></div>
+<div class="line"><a id="l02035" name="l02035"></a><span class="lineno"> 2035</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02036" name="l02036"></a><span class="lineno"> 2036</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l02037" name="l02037"></a><span class="lineno"> 2037</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l02038" name="l02038"></a><span class="lineno"> 2038</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02039" name="l02039"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad08b53052e7eedfa7a925258f5ef1cba"> 2039</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ad08b53052e7eedfa7a925258f5ef1cba">m_snd_smoothed_round_trip_time</a>;</div>
+<div class="line"><a id="l02040" name="l02040"></a><span class="lineno"> 2040</span><span class="comment"></span> </div>
+<div class="line"><a id="l02041" name="l02041"></a><span class="lineno"> 2041</span><span class="comment">  /// RTTVAR used for #m_snd_smoothed_round_trip_time calculation.  @see #m_snd_smoothed_round_trip_time.</span></div>
+<div class="line"><a id="l02042" name="l02042"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a27ce5b19ab4abcf61aa07153c46b2be3"> 2042</a></span><span class="comment"></span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a27ce5b19ab4abcf61aa07153c46b2be3">m_round_trip_time_variance</a>;</div>
+<div class="line"><a id="l02043" name="l02043"></a><span class="lineno"> 2043</span><span class="comment"></span> </div>
+<div class="line"><a id="l02044" name="l02044"></a><span class="lineno"> 2044</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02045" name="l02045"></a><span class="lineno"> 2045</span><span class="comment">   * The Drop Timer engine, which controls how In-flight (#m_snd_flying_pkts_by_sent_when) packets are</span></div>
+<div class="line"><a id="l02046" name="l02046"></a><span class="lineno"> 2046</span><span class="comment">   * considered Dropped due to being unacknowledged for too long.  Used while #m_int_state is</span></div>
+<div class="line"><a id="l02047" name="l02047"></a><span class="lineno"> 2047</span><span class="comment">   * Int_state::S_ESTABLISHED.</span></div>
+<div class="line"><a id="l02048" name="l02048"></a><span class="lineno"> 2048</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02049" name="l02049"></a><span class="lineno"> 2049</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l02050" name="l02050"></a><span class="lineno"> 2050</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l02051" name="l02051"></a><span class="lineno"> 2051</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02052" name="l02052"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a037459e6f1345cedf45e490d544c8567"> 2052</a></span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#ae804be57cf09b9bf76eafa8ffff73de6">Drop_timer_ptr</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a037459e6f1345cedf45e490d544c8567">m_snd_drop_timer</a>;</div>
+<div class="line"><a id="l02053" name="l02053"></a><span class="lineno"> 2053</span><span class="comment"></span> </div>
+<div class="line"><a id="l02054" name="l02054"></a><span class="lineno"> 2054</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02055" name="l02055"></a><span class="lineno"> 2055</span><span class="comment">   * The Drop Timeout: Time period between the next time #m_snd_drop_timer schedules a Drop Timer and that timer</span></div>
+<div class="line"><a id="l02056" name="l02056"></a><span class="lineno"> 2056</span><span class="comment">   * expiring.  This is updated each time #m_snd_smoothed_round_trip_time is updated, and the Drop_timer</span></div>
+<div class="line"><a id="l02057" name="l02057"></a><span class="lineno"> 2057</span><span class="comment">   * itself may change it under certain circumstances.</span></div>
+<div class="line"><a id="l02058" name="l02058"></a><span class="lineno"> 2058</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02059" name="l02059"></a><span class="lineno"> 2059</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l02060" name="l02060"></a><span class="lineno"> 2060</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l02061" name="l02061"></a><span class="lineno"> 2061</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02062" name="l02062"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a2d8aded3761028967fd3abb464e64936"> 2062</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">Fine_duration</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a2d8aded3761028967fd3abb464e64936">m_snd_drop_timeout</a>;</div>
+<div class="line"><a id="l02063" name="l02063"></a><span class="lineno"> 2063</span><span class="comment"></span> </div>
+<div class="line"><a id="l02064" name="l02064"></a><span class="lineno"> 2064</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02065" name="l02065"></a><span class="lineno"> 2065</span><span class="comment">   * The state of outgoing packet pacing for this socket; segregated into a simple `struct` to keep</span></div>
+<div class="line"><a id="l02066" name="l02066"></a><span class="lineno"> 2066</span><span class="comment">   * Peer_socket shorter and easier to understand.  Packet pacing tries to combat the burstiness of</span></div>
+<div class="line"><a id="l02067" name="l02067"></a><span class="lineno"> 2067</span><span class="comment">   * outgoing low-level packet stream.</span></div>
+<div class="line"><a id="l02068" name="l02068"></a><span class="lineno"> 2068</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02069" name="l02069"></a><span class="lineno"> 2069</span><span class="comment">   * @see `struct Send_pacing_data` doc header for much detail.</span></div>
+<div class="line"><a id="l02070" name="l02070"></a><span class="lineno"> 2070</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02071" name="l02071"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a55b44104a2c305b9679434ba623a7357"> 2071</a></span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Send__pacing__data.html">Send_pacing_data</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a55b44104a2c305b9679434ba623a7357">m_snd_pacing_data</a>;</div>
+<div class="line"><a id="l02072" name="l02072"></a><span class="lineno"> 2072</span><span class="comment"></span> </div>
+<div class="line"><a id="l02073" name="l02073"></a><span class="lineno"> 2073</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02074" name="l02074"></a><span class="lineno"> 2074</span><span class="comment">   * The last time that Node has detected a packet loss event and so informed #m_snd_cong_ctl by calling</span></div>
+<div class="line"><a id="l02075" name="l02075"></a><span class="lineno"> 2075</span><span class="comment">   * the appropriate method of class Congestion_control_strategy.  Roughly speaking, this is used to</span></div>
+<div class="line"><a id="l02076" name="l02076"></a><span class="lineno"> 2076</span><span class="comment">   * determine whether the detection of a given dropped packet is part of the same loss event as the</span></div>
+<div class="line"><a id="l02077" name="l02077"></a><span class="lineno"> 2077</span><span class="comment">   * previous one; if so then #m_snd_cong_ctl is not informed again (presumably to avoid dropping CWND</span></div>
+<div class="line"><a id="l02078" name="l02078"></a><span class="lineno"> 2078</span><span class="comment">   * too fast); if not it is informed of the new loss event.  Even more roughly speaking, if the new</span></div>
+<div class="line"><a id="l02079" name="l02079"></a><span class="lineno"> 2079</span><span class="comment">   * event is within a certain time frame of #m_snd_last_loss_event_when, then they&#39;re considered in the</span></div>
+<div class="line"><a id="l02080" name="l02080"></a><span class="lineno"> 2080</span><span class="comment">   * same loss event.  You can find detailed discussion in a giant comment in</span></div>
+<div class="line"><a id="l02081" name="l02081"></a><span class="lineno"> 2081</span><span class="comment">   * Node::handle_accumulated_acks().</span></div>
+<div class="line"><a id="l02082" name="l02082"></a><span class="lineno"> 2082</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02083" name="l02083"></a><span class="lineno"> 2083</span><span class="comment">   * Before any loss events, this is set to its default value (zero time since epoch).</span></div>
+<div class="line"><a id="l02084" name="l02084"></a><span class="lineno"> 2084</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02085" name="l02085"></a><span class="lineno"> 2085</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l02086" name="l02086"></a><span class="lineno"> 2086</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l02087" name="l02087"></a><span class="lineno"> 2087</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02088" name="l02088"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aa9f77167af54cfe2921fab5fd143eff4"> 2088</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aa9f77167af54cfe2921fab5fd143eff4">m_snd_last_loss_event_when</a>;</div>
+<div class="line"><a id="l02089" name="l02089"></a><span class="lineno"> 2089</span><span class="comment"></span> </div>
+<div class="line"><a id="l02090" name="l02090"></a><span class="lineno"> 2090</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02091" name="l02091"></a><span class="lineno"> 2091</span><span class="comment">   * Time at which the last Data_packet low-level packet for this connection was sent.  We</span></div>
+<div class="line"><a id="l02092" name="l02092"></a><span class="lineno"> 2092</span><span class="comment">   * use this when determining whether the connection is in Idle Timeout (i.e., has sent no traffic</span></div>
+<div class="line"><a id="l02093" name="l02093"></a><span class="lineno"> 2093</span><span class="comment">   * for a while, which means there has been no data to send).  It&#39;s used for congestion control.</span></div>
+<div class="line"><a id="l02094" name="l02094"></a><span class="lineno"> 2094</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02095" name="l02095"></a><span class="lineno"> 2095</span><span class="comment">   * Before any packets are sent, this is set to its default value (zero time since epoch).</span></div>
+<div class="line"><a id="l02096" name="l02096"></a><span class="lineno"> 2096</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02097" name="l02097"></a><span class="lineno"> 2097</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l02098" name="l02098"></a><span class="lineno"> 2098</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l02099" name="l02099"></a><span class="lineno"> 2099</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02100" name="l02100"></a><span class="lineno"> 2100</span><span class="comment">   * ### Pacing ###</span></div>
+<div class="line"><a id="l02101" name="l02101"></a><span class="lineno"> 2101</span><span class="comment">   * See Send_packet_pacing #m_snd_pacing_data.  See pacing-relevant note on Sent_packet::m_sent_when</span></div>
+<div class="line"><a id="l02102" name="l02102"></a><span class="lineno"> 2102</span><span class="comment">   * which applies equally to this data member.</span></div>
+<div class="line"><a id="l02103" name="l02103"></a><span class="lineno"> 2103</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02104" name="l02104"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#af392484f79ffcead4f74ca351672d8d4"> 2104</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#af392484f79ffcead4f74ca351672d8d4">m_snd_last_data_sent_when</a>;</div>
+<div class="line"><a id="l02105" name="l02105"></a><span class="lineno"> 2105</span><span class="comment"></span> </div>
+<div class="line"><a id="l02106" name="l02106"></a><span class="lineno"> 2106</span><span class="comment">  /// Stats regarding outgoing traffic (and resulting incoming ACKs) for this connection so far.</span></div>
+<div class="line"><a id="l02107" name="l02107"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ab4aff3e65ef9551b6c5ab890173b741e"> 2107</a></span><span class="comment"></span>  <a class="code hl_class" href="classflow_1_1net__flow_1_1Peer__socket__send__stats__accumulator.html">Peer_socket_send_stats_accumulator</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ab4aff3e65ef9551b6c5ab890173b741e">m_snd_stats</a>;</div>
+<div class="line"><a id="l02108" name="l02108"></a><span class="lineno"> 2108</span><span class="comment"></span> </div>
+<div class="line"><a id="l02109" name="l02109"></a><span class="lineno"> 2109</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02110" name="l02110"></a><span class="lineno"> 2110</span><span class="comment">   * Random security token used during SYN_ACK-SYN_ACK_ACK.  For a given connection handshake, the</span></div>
+<div class="line"><a id="l02111" name="l02111"></a><span class="lineno"> 2111</span><span class="comment">   * SYN_ACK_ACK receiver ensures that #m_security_token it received is equal to the original one it</span></div>
+<div class="line"><a id="l02112" name="l02112"></a><span class="lineno"> 2112</span><span class="comment">   * had sent in SYN_ACK.  This first gains meaning upong sending SYN_ACK and it does not change afterwards.</span></div>
+<div class="line"><a id="l02113" name="l02113"></a><span class="lineno"> 2113</span><span class="comment">   * It is not used unless `!m_active_connect`.  See #m_active_connect.</span></div>
+<div class="line"><a id="l02114" name="l02114"></a><span class="lineno"> 2114</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02115" name="l02115"></a><span class="lineno"> 2115</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l02116" name="l02116"></a><span class="lineno"> 2116</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l02117" name="l02117"></a><span class="lineno"> 2117</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02118" name="l02118"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a33a90b123612cc2e6a119cfa95ba4f6d"> 2118</a></span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a59db68ed0c77a9f6e1a7aeeb3df2a6b9">security_token_t</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a33a90b123612cc2e6a119cfa95ba4f6d">m_security_token</a>;</div>
+<div class="line"><a id="l02119" name="l02119"></a><span class="lineno"> 2119</span><span class="comment"></span> </div>
+<div class="line"><a id="l02120" name="l02120"></a><span class="lineno"> 2120</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02121" name="l02121"></a><span class="lineno"> 2121</span><span class="comment">   * Connection attempt scheduled task; fires if an individual connection request packet is not answered with a reply</span></div>
+<div class="line"><a id="l02122" name="l02122"></a><span class="lineno"> 2122</span><span class="comment">   * packet in time.  It is readied when *any* SYN or SYN_ACK packet is sent, and fired if that packet has gone</span></div>
+<div class="line"><a id="l02123" name="l02123"></a><span class="lineno"> 2123</span><span class="comment">   * unacknowledged with a SYN_ACK or SYN_ACK_ACK (respectively), long enough to be retransmitted.</span></div>
+<div class="line"><a id="l02124" name="l02124"></a><span class="lineno"> 2124</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02125" name="l02125"></a><span class="lineno"> 2125</span><span class="comment">   * Connection establishment is aborted if it fires too many times, but #m_connection_timeout_scheduled_task is how</span></div>
+<div class="line"><a id="l02126" name="l02126"></a><span class="lineno"> 2126</span><span class="comment">   * &quot;too many times&quot; is determined.</span></div>
+<div class="line"><a id="l02127" name="l02127"></a><span class="lineno"> 2127</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02128" name="l02128"></a><span class="lineno"> 2128</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l02129" name="l02129"></a><span class="lineno"> 2129</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l02130" name="l02130"></a><span class="lineno"> 2130</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02131" name="l02131"></a><span class="lineno"> 2131</span><span class="comment">   * @see #m_connection_timeout_scheduled_task which keeps track of the entire process timing out, as opposed to the</span></div>
+<div class="line"><a id="l02132" name="l02132"></a><span class="lineno"> 2132</span><span class="comment">   *      individual attempts.</span></div>
+<div class="line"><a id="l02133" name="l02133"></a><span class="lineno"> 2133</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02134" name="l02134"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a85b3d271527dbaa04b1d9f751631fd71"> 2134</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">util::Scheduled_task_handle</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a85b3d271527dbaa04b1d9f751631fd71">m_init_rexmit_scheduled_task</a>;</div>
+<div class="line"><a id="l02135" name="l02135"></a><span class="lineno"> 2135</span><span class="comment"></span> </div>
+<div class="line"><a id="l02136" name="l02136"></a><span class="lineno"> 2136</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02137" name="l02137"></a><span class="lineno"> 2137</span><span class="comment">   * If currently using #m_init_rexmit_scheduled_task, this is the number of times the timer has already fired</span></div>
+<div class="line"><a id="l02138" name="l02138"></a><span class="lineno"> 2138</span><span class="comment">   * in this session.  So when the timer is readied the first time it&#39;s zero; if it fires and is</span></div>
+<div class="line"><a id="l02139" name="l02139"></a><span class="lineno"> 2139</span><span class="comment">   * thus readied again it&#39;s one; again =&gt; two; etc., until timer is canceled or connection is</span></div>
+<div class="line"><a id="l02140" name="l02140"></a><span class="lineno"> 2140</span><span class="comment">   * aborted due to too many retries.</span></div>
+<div class="line"><a id="l02141" name="l02141"></a><span class="lineno"> 2141</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02142" name="l02142"></a><span class="lineno"> 2142</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l02143" name="l02143"></a><span class="lineno"> 2143</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l02144" name="l02144"></a><span class="lineno"> 2144</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02145" name="l02145"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a0d1eecb59c62912b5630359df774dc62"> 2145</a></span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a0d1eecb59c62912b5630359df774dc62">m_init_rexmit_count</a>;</div>
+<div class="line"><a id="l02146" name="l02146"></a><span class="lineno"> 2146</span><span class="comment"></span> </div>
+<div class="line"><a id="l02147" name="l02147"></a><span class="lineno"> 2147</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02148" name="l02148"></a><span class="lineno"> 2148</span><span class="comment">   * Connection timeout scheduled task; fires if the entire initial connection process does not complete within a</span></div>
+<div class="line"><a id="l02149" name="l02149"></a><span class="lineno"> 2149</span><span class="comment">   * certain amount of time.  It is started when the SYN or SYN_ACK is sent the very first time (NOT counting</span></div>
+<div class="line"><a id="l02150" name="l02150"></a><span class="lineno"> 2150</span><span class="comment">   * resends), canceled when SYN_ACK or SYN_ACK_ACK (respectively) is received in response to ANY SYN or</span></div>
+<div class="line"><a id="l02151" name="l02151"></a><span class="lineno"> 2151</span><span class="comment">   * SYN_ACK (respevtively), and fired if the the latter does not occur in time.</span></div>
+<div class="line"><a id="l02152" name="l02152"></a><span class="lineno"> 2152</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02153" name="l02153"></a><span class="lineno"> 2153</span><span class="comment">   * This gains meaning only in thread W.  This should NOT be accessed outside of thread W and is</span></div>
+<div class="line"><a id="l02154" name="l02154"></a><span class="lineno"> 2154</span><span class="comment">   * not protected by a mutex.</span></div>
+<div class="line"><a id="l02155" name="l02155"></a><span class="lineno"> 2155</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02156" name="l02156"></a><span class="lineno"> 2156</span><span class="comment">   * @see #m_init_rexmit_scheduled_task which keeps track of *individual* attempts timing out, as opposed to the</span></div>
+<div class="line"><a id="l02157" name="l02157"></a><span class="lineno"> 2157</span><span class="comment">   *      entire process.</span></div>
+<div class="line"><a id="l02158" name="l02158"></a><span class="lineno"> 2158</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02159" name="l02159"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad772e56de286567c4b7a681907b5f285"> 2159</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">util::Scheduled_task_handle</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ad772e56de286567c4b7a681907b5f285">m_connection_timeout_scheduled_task</a>;</div>
+<div class="line"><a id="l02160" name="l02160"></a><span class="lineno"> 2160</span><span class="comment"></span> </div>
+<div class="line"><a id="l02161" name="l02161"></a><span class="lineno"> 2161</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02162" name="l02162"></a><span class="lineno"> 2162</span><span class="comment">   * This is the final set of stats collected at the time the socket was moved to S_CLOSED #m_state.</span></div>
+<div class="line"><a id="l02163" name="l02163"></a><span class="lineno"> 2163</span><span class="comment">   * If it has not yet moved to that state, this is not applicable (but equals Peer_socket_info()).</span></div>
+<div class="line"><a id="l02164" name="l02164"></a><span class="lineno"> 2164</span><span class="comment">   * It&#39;s used by info() to get at the final set of stats, before the source info is purged by the</span></div>
+<div class="line"><a id="l02165" name="l02165"></a><span class="lineno"> 2165</span><span class="comment">   * resource cleanup in sock_free_memory().</span></div>
+<div class="line"><a id="l02166" name="l02166"></a><span class="lineno"> 2166</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02167" name="l02167"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ac4c942e1bb6c4dc4b24251f294a2f92d"> 2167</a></span>  <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket__info.html">Peer_socket_info</a> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ac4c942e1bb6c4dc4b24251f294a2f92d">m_info_on_close</a>;</div>
+<div class="line"><a id="l02168" name="l02168"></a><span class="lineno"> 2168</span>}; <span class="comment">// class Peer_socket</span></div>
+<div class="line"><a id="l02169" name="l02169"></a><span class="lineno"> 2169</span> </div>
+<div class="line"><a id="l02170" name="l02170"></a><span class="lineno"> 2170</span><span class="comment"></span> </div>
+<div class="line"><a id="l02171" name="l02171"></a><span class="lineno"> 2171</span><span class="comment">/**</span></div>
+<div class="line"><a id="l02172" name="l02172"></a><span class="lineno"> 2172</span><span class="comment"> * @private</span></div>
+<div class="line"><a id="l02173" name="l02173"></a><span class="lineno"> 2173</span><span class="comment"> *</span></div>
+<div class="line"><a id="l02174" name="l02174"></a><span class="lineno"> 2174</span><span class="comment"> * Metadata (and data, if retransmission is on) for a packet that has been sent one (if</span></div>
+<div class="line"><a id="l02175" name="l02175"></a><span class="lineno"> 2175</span><span class="comment"> * retransmission is off) or possibly more (if on) times.  This is purely a data store, not a</span></div>
+<div class="line"><a id="l02176" name="l02176"></a><span class="lineno"> 2176</span><span class="comment"> * class.  It is not copyable, and moving them around by smart Sent_packet::Ptr is encouraged.</span></div>
+<div class="line"><a id="l02177" name="l02177"></a><span class="lineno"> 2177</span><span class="comment"> */</span></div>
+<div class="line"><a id="l02178" name="l02178"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html"> 2178</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">Peer_socket::Sent_packet</a> :</div>
+<div class="line"><a id="l02179" name="l02179"></a><span class="lineno"> 2179</span>  <span class="comment">// Endow us with shared_ptr&lt;&gt;s ::Ptr and ::Const_ptr (syntactic sugar).</span></div>
+<div class="line"><a id="l02180" name="l02180"></a><span class="lineno"> 2180</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html">util::Shared_ptr_alias_holder</a>&lt;boost::shared_ptr&lt;Peer_socket::Sent_packet&gt;&gt;,</div>
+<div class="line"><a id="l02181" name="l02181"></a><span class="lineno"> 2181</span>  <span class="keyword">private</span> boost::noncopyable</div>
+<div class="line"><a id="l02182" name="l02182"></a><span class="lineno"> 2182</span>{</div>
+<div class="line"><a id="l02183" name="l02183"></a><span class="lineno"> 2183</span>  <span class="comment">// Types.</span></div>
+<div class="line"><a id="l02184" name="l02184"></a><span class="lineno"> 2184</span> </div>
+<div class="line"><a id="l02185" name="l02185"></a><span class="lineno"> 2185</span>  <span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Sent_when</a>;</div>
+<div class="line"><a id="l02186" name="l02186"></a><span class="lineno"> 2186</span><span class="comment"></span> </div>
+<div class="line"><a id="l02187" name="l02187"></a><span class="lineno"> 2187</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02188" name="l02188"></a><span class="lineno"> 2188</span><span class="comment">   * Type used for #m_acks_after_me.  Use a small type to save memory; this is easily large enough,</span></div>
+<div class="line"><a id="l02189" name="l02189"></a><span class="lineno"> 2189</span><span class="comment">   * given that that we drop a packet after #m_acks_after_me exceeds a very small value (&lt; 10), and</span></div>
+<div class="line"><a id="l02190" name="l02190"></a><span class="lineno"> 2190</span><span class="comment">   * a given ACK can *conceivably* hold a few thousand individual acknowledgments (most likely many</span></div>
+<div class="line"><a id="l02191" name="l02191"></a><span class="lineno"> 2191</span><span class="comment">   * fewer).  In fact `uint8_t` is probably enough, but it seemed easier to not worry about</span></div>
+<div class="line"><a id="l02192" name="l02192"></a><span class="lineno"> 2192</span><span class="comment">   * overflows when doing arithmetic with these.</span></div>
+<div class="line"><a id="l02193" name="l02193"></a><span class="lineno"> 2193</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02194" name="l02194"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2"> 2194</a></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2">ack_count_t</a> = uint16_t;</div>
+<div class="line"><a id="l02195" name="l02195"></a><span class="lineno"> 2195</span> </div>
+<div class="line"><a id="l02196" name="l02196"></a><span class="lineno"> 2196</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l02197" name="l02197"></a><span class="lineno"> 2197</span><span class="comment"></span> </div>
+<div class="line"><a id="l02198" name="l02198"></a><span class="lineno"> 2198</span><span class="comment">  /// Number of bytes in the Data_packet::m_data field of the sent packet.</span></div>
+<div class="line"><a id="l02199" name="l02199"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a5b5762a1effba90f631c06ad76f9774b"> 2199</a></span><span class="comment"></span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a5b5762a1effba90f631c06ad76f9774b">m_size</a>;</div>
+<div class="line"><a id="l02200" name="l02200"></a><span class="lineno"> 2200</span><span class="comment"></span> </div>
+<div class="line"><a id="l02201" name="l02201"></a><span class="lineno"> 2201</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02202" name="l02202"></a><span class="lineno"> 2202</span><span class="comment">   * Time stamps, order numbers, and other info at the times when the different attempts (including</span></div>
+<div class="line"><a id="l02203" name="l02203"></a><span class="lineno"> 2203</span><span class="comment">   * original sending and retransmissions) to send the packet were given to the UDP net-stack. These are</span></div>
+<div class="line"><a id="l02204" name="l02204"></a><span class="lineno"> 2204</span><span class="comment">   * arranged in the order they were sent (0 = original transmission, 1 = first retransmission, 2 = second</span></div>
+<div class="line"><a id="l02205" name="l02205"></a><span class="lineno"> 2205</span><span class="comment">   * retransmission, ...).  If retransmission is off, this only ever has 1 element (set via</span></div>
+<div class="line"><a id="l02206" name="l02206"></a><span class="lineno"> 2206</span><span class="comment">   * constructor).</span></div>
+<div class="line"><a id="l02207" name="l02207"></a><span class="lineno"> 2207</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02208" name="l02208"></a><span class="lineno"> 2208</span><span class="comment">   * Along with each time stamp, we also store an order number.  It is much like a sequence</span></div>
+<div class="line"><a id="l02209" name="l02209"></a><span class="lineno"> 2209</span><span class="comment">   * number, except (a) we never send it anywhere (internal bookkeeping only), (b) it specifies</span></div>
+<div class="line"><a id="l02210" name="l02210"></a><span class="lineno"> 2210</span><span class="comment">   * the order in which the packets were sent off.  Why use that and not a `m_sent_time` timestamp?  Because</span></div>
+<div class="line"><a id="l02211" name="l02211"></a><span class="lineno"> 2211</span><span class="comment">   * `m_sent_time` can, in theory, have ties (i.e., it&#39;s kind of possible for 2 packets to be sent</span></div>
+<div class="line"><a id="l02212" name="l02212"></a><span class="lineno"> 2212</span><span class="comment">   * within the same high-resolution clock tick).  This gives us a solid way to order packets by send time</span></div>
+<div class="line"><a id="l02213" name="l02213"></a><span class="lineno"> 2213</span><span class="comment">   * in certain key algorithms.</span></div>
+<div class="line"><a id="l02214" name="l02214"></a><span class="lineno"> 2214</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02215" name="l02215"></a><span class="lineno"> 2215</span><span class="comment">   * Note: for reasons explained in the pacing module this should be the time stamp when we</span></div>
+<div class="line"><a id="l02216" name="l02216"></a><span class="lineno"> 2216</span><span class="comment">   * actually send it off to boost.asio UDP net-stack, not when we queue it into the pacing module (which can be</span></div>
+<div class="line"><a id="l02217" name="l02217"></a><span class="lineno"> 2217</span><span class="comment">   * quite a bit earlier, if pacing is enabled).  Subtlety: Note that &quot;time stamp when we actually send it off</span></div>
+<div class="line"><a id="l02218" name="l02218"></a><span class="lineno"> 2218</span><span class="comment">   * to boost.asio UDP net-stack&quot; IS the same as &quot;time stamp when boost.asio UDP net-stack actually performs the</span></div>
+<div class="line"><a id="l02219" name="l02219"></a><span class="lineno"> 2219</span><span class="comment">   * `sendto()` call&quot; in practice -- a good thing for accurate RTT measurements.</span></div>
+<div class="line"><a id="l02220" name="l02220"></a><span class="lineno"> 2220</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02221" name="l02221"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e"> 2221</a></span>  std::vector&lt;Sent_when&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">m_sent_when</a>;</div>
+<div class="line"><a id="l02222" name="l02222"></a><span class="lineno"> 2222</span><span class="comment"></span> </div>
+<div class="line"><a id="l02223" name="l02223"></a><span class="lineno"> 2223</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02224" name="l02224"></a><span class="lineno"> 2224</span><span class="comment">   * The number of times any packet with `m_sent_when.back().m_order_num &gt; this-&gt;m_sent_when.back().m_order_num`</span></div>
+<div class="line"><a id="l02225" name="l02225"></a><span class="lineno"> 2225</span><span class="comment">   * has been acknowledged.  Reworded slightly: start at 0; *IF* a packet, other than this one, is In-flight and then</span></div>
+<div class="line"><a id="l02226" name="l02226"></a><span class="lineno"> 2226</span><span class="comment">   * acknowledged, and that packet was sent out (or, equivalently, scheduled to be sent out -- packets do not</span></div>
+<div class="line"><a id="l02227" name="l02227"></a><span class="lineno"> 2227</span><span class="comment">   * change order once marked for sending -- a/k/a became In-flight) chronologically AFTER same happened to</span></div>
+<div class="line"><a id="l02228" name="l02228"></a><span class="lineno"> 2228</span><span class="comment">   * `*this` packet *THEN* add 1.  After adding up all such acks, the resulting value = this member.</span></div>
+<div class="line"><a id="l02229" name="l02229"></a><span class="lineno"> 2229</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02230" name="l02230"></a><span class="lineno"> 2230</span><span class="comment">   * This is used to determine when `*this` packet should be considered Dropped,</span></div>
+<div class="line"><a id="l02231" name="l02231"></a><span class="lineno"> 2231</span><span class="comment">   * as in TCP&#39;s Fast Retransmit heuristic (but better, since time-when-sent -- not sequence number, which has</span></div>
+<div class="line"><a id="l02232" name="l02232"></a><span class="lineno"> 2232</span><span class="comment">   * retransmission ambiguities -- is used to order packets).</span></div>
+<div class="line"><a id="l02233" name="l02233"></a><span class="lineno"> 2233</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02234" name="l02234"></a><span class="lineno"> 2234</span><span class="comment">   * Note, again, that &quot;after&quot; has little to do with *sequence* number but rather with send time, as ordered via</span></div>
+<div class="line"><a id="l02235" name="l02235"></a><span class="lineno"> 2235</span><span class="comment">   * the *order* number.  E.g., due to retransmission, `*this` may have sequence number greater than another</span></div>
+<div class="line"><a id="l02236" name="l02236"></a><span class="lineno"> 2236</span><span class="comment">   * packet yet have the lesser order number.  (This dichotomy is mentioned a lot, everywhere, and if I&#39;m overdoing</span></div>
+<div class="line"><a id="l02237" name="l02237"></a><span class="lineno"> 2237</span><span class="comment">   * it, it&#39;s only because sometimes TCP cumulative-ack habits die hard, so I have to keep reminding myself.)</span></div>
+<div class="line"><a id="l02238" name="l02238"></a><span class="lineno"> 2238</span><span class="comment">   * (If retransmission is disabled, however, then sequence number order = order number order.)</span></div>
+<div class="line"><a id="l02239" name="l02239"></a><span class="lineno"> 2239</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02240" name="l02240"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa"> 2240</a></span>  <a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2">ack_count_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa">m_acks_after_me</a>;</div>
+<div class="line"><a id="l02241" name="l02241"></a><span class="lineno"> 2241</span><span class="comment"></span> </div>
+<div class="line"><a id="l02242" name="l02242"></a><span class="lineno"> 2242</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02243" name="l02243"></a><span class="lineno"> 2243</span><span class="comment">   * If retransmission is on, this is the DATA packet itself that was sent; otherwise null.  It is</span></div>
+<div class="line"><a id="l02244" name="l02244"></a><span class="lineno"> 2244</span><span class="comment">   * stored in case we need to retransmit it.  If we don&#39;t (it is acknowledged), the entire</span></div>
+<div class="line"><a id="l02245" name="l02245"></a><span class="lineno"> 2245</span><span class="comment">   * Sent_packet is erased and goes away, so #m_packet&#39;s ref-count decreases to zero, and it</span></div>
+<div class="line"><a id="l02246" name="l02246"></a><span class="lineno"> 2246</span><span class="comment">   * disappears.  If we do, all we need to do to retransmit it is increment its Data_packet::m_rexmit_id and</span></div>
+<div class="line"><a id="l02247" name="l02247"></a><span class="lineno"> 2247</span><span class="comment">   * place it into the retransmission queue for sending, when CWND space is available.</span></div>
+<div class="line"><a id="l02248" name="l02248"></a><span class="lineno"> 2248</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02249" name="l02249"></a><span class="lineno"> 2249</span><span class="comment">   * Why store the entire packet and not just its Data_packet::m_data?  There&#39;s a small bit of memory overhead, but</span></div>
+<div class="line"><a id="l02250" name="l02250"></a><span class="lineno"> 2250</span><span class="comment">   * we get Data_packet::m_rexmit_id for free and don&#39;t have to spend time re-creating the packet to retransmit.</span></div>
+<div class="line"><a id="l02251" name="l02251"></a><span class="lineno"> 2251</span><span class="comment">   * So it&#39;s just convenient.</span></div>
+<div class="line"><a id="l02252" name="l02252"></a><span class="lineno"> 2252</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02253" name="l02253"></a><span class="lineno"> 2253</span><span class="comment">   * If retransmission is off, there is no need to store this, as it will not be re-sent.</span></div>
+<div class="line"><a id="l02254" name="l02254"></a><span class="lineno"> 2254</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02255" name="l02255"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf"> 2255</a></span>  <span class="keyword">const</span> boost::shared_ptr&lt;Data_packet&gt; <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf">m_packet</a>;</div>
+<div class="line"><a id="l02256" name="l02256"></a><span class="lineno"> 2256</span> </div>
+<div class="line"><a id="l02257" name="l02257"></a><span class="lineno"> 2257</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l02258" name="l02258"></a><span class="lineno"> 2258</span><span class="comment"></span> </div>
+<div class="line"><a id="l02259" name="l02259"></a><span class="lineno"> 2259</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02260" name="l02260"></a><span class="lineno"> 2260</span><span class="comment">   * Constructs object with the given values and #m_acks_after_me at zero.  If rexmit-on option enabled, the</span></div>
+<div class="line"><a id="l02261" name="l02261"></a><span class="lineno"> 2261</span><span class="comment">   * packet is stored in #m_packet; otherwise #m_packet is initialized to null.  Regardless, #m_size</span></div>
+<div class="line"><a id="l02262" name="l02262"></a><span class="lineno"> 2262</span><span class="comment">   * is set to `packet.m_data.size()`.</span></div>
+<div class="line"><a id="l02263" name="l02263"></a><span class="lineno"> 2263</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02264" name="l02264"></a><span class="lineno"> 2264</span><span class="comment">   * @param rexmit_on</span></div>
+<div class="line"><a id="l02265" name="l02265"></a><span class="lineno"> 2265</span><span class="comment">   *        True if and only if `sock-&gt;rexmit_on()` for the containing socket.</span></div>
+<div class="line"><a id="l02266" name="l02266"></a><span class="lineno"> 2266</span><span class="comment">   * @param packet</span></div>
+<div class="line"><a id="l02267" name="l02267"></a><span class="lineno"> 2267</span><span class="comment">   *        The packet that will be sent.  Used for #m_size and, if `sock-&gt;rexmit_on()`, saved in #m_packet.</span></div>
+<div class="line"><a id="l02268" name="l02268"></a><span class="lineno"> 2268</span><span class="comment">   * @param sent_when</span></div>
+<div class="line"><a id="l02269" name="l02269"></a><span class="lineno"> 2269</span><span class="comment">   *        #m_sent_when is set to contain one element equalling this argument.</span></div>
+<div class="line"><a id="l02270" name="l02270"></a><span class="lineno"> 2270</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02271" name="l02271"></a><span class="lineno"> 2271</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a28eb52fe9520497d02f6c0cd51a5fa9b">Sent_packet</a>(<span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">rexmit_on</a>, boost::shared_ptr&lt;Data_packet&gt; packet, <span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Sent_when</a>&amp; sent_when);</div>
+<div class="line"><a id="l02272" name="l02272"></a><span class="lineno"> 2272</span>}; <span class="comment">// struct Peer_socket::Sent_packet</span></div>
+<div class="line"><a id="l02273" name="l02273"></a><span class="lineno"> 2273</span><span class="comment"></span> </div>
+<div class="line"><a id="l02274" name="l02274"></a><span class="lineno"> 2274</span><span class="comment">/**</span></div>
+<div class="line"><a id="l02275" name="l02275"></a><span class="lineno"> 2275</span><span class="comment"> * @private</span></div>
+<div class="line"><a id="l02276" name="l02276"></a><span class="lineno"> 2276</span><span class="comment"> *</span></div>
+<div class="line"><a id="l02277" name="l02277"></a><span class="lineno"> 2277</span><span class="comment"> * Data store to keep timing related info when a packet is sent out.  Construct via direct member initialization.</span></div>
+<div class="line"><a id="l02278" name="l02278"></a><span class="lineno"> 2278</span><span class="comment"> * It is copy-constructible (for initially copying into containers and such) but not assignable to discourage</span></div>
+<div class="line"><a id="l02279" name="l02279"></a><span class="lineno"> 2279</span><span class="comment"> * unneeded copying (though it is not a heavy structure).  Update: A later version of clang does not like</span></div>
+<div class="line"><a id="l02280" name="l02280"></a><span class="lineno"> 2280</span><span class="comment"> * this technique and warns about it; to avoid any such trouble just forget the non-assignability stuff;</span></div>
+<div class="line"><a id="l02281" name="l02281"></a><span class="lineno"> 2281</span><span class="comment"> * it&#39;s internal code; we should be fine.</span></div>
+<div class="line"><a id="l02282" name="l02282"></a><span class="lineno"> 2282</span><span class="comment"> */</span></div>
+<div class="line"><a id="l02283" name="l02283"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html"> 2283</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">Peer_socket::Sent_packet::Sent_when</a></div>
+<div class="line"><a id="l02284" name="l02284"></a><span class="lineno"> 2284</span>{</div>
+<div class="line"><a id="l02285" name="l02285"></a><span class="lineno"> 2285</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l02286" name="l02286"></a><span class="lineno"> 2286</span><span class="comment"></span> </div>
+<div class="line"><a id="l02287" name="l02287"></a><span class="lineno"> 2287</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02288" name="l02288"></a><span class="lineno"> 2288</span><span class="comment">   * Order number of the packet.  This can be used to compare two packets sent out; the one with the</span></div>
+<div class="line"><a id="l02289" name="l02289"></a><span class="lineno"> 2289</span><span class="comment">   * higher order number was sent out later.  See Peer_socket::m_snd_last_order_num.  The per-socket next-value</span></div>
+<div class="line"><a id="l02290" name="l02290"></a><span class="lineno"> 2290</span><span class="comment">   * for this is incremented each time another packet is sent out.</span></div>
+<div class="line"><a id="l02291" name="l02291"></a><span class="lineno"> 2291</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02292" name="l02292"></a><span class="lineno"> 2292</span><span class="comment">   * @see Peer_socket::Sent_packet::m_sent_when for more discussion.</span></div>
+<div class="line"><a id="l02293" name="l02293"></a><span class="lineno"> 2293</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02294" name="l02294"></a><span class="lineno"> 2294</span><span class="comment">   * @internal</span></div>
+<div class="line"><a id="l02295" name="l02295"></a><span class="lineno"> 2295</span><span class="comment">   * @todo Can we make Sent_when::m_order_num and some of its peers const?</span></div>
+<div class="line"><a id="l02296" name="l02296"></a><span class="lineno"> 2296</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02297" name="l02297"></a><span class="lineno"> 2297</span>  <span class="comment">// That @internal should not be necessary to hide the @todo in public generated docs -- Doxygen bug?</span></div>
+<div class="line"><a id="l02298" name="l02298"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6"> 2298</a></span>  <span class="keyword">const</span> <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">order_num_t</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">m_order_num</a>;</div>
+<div class="line"><a id="l02299" name="l02299"></a><span class="lineno"> 2299</span><span class="comment"></span> </div>
+<div class="line"><a id="l02300" name="l02300"></a><span class="lineno"> 2300</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02301" name="l02301"></a><span class="lineno"> 2301</span><span class="comment">   * The timestamp when the packet is sent out.  This may be &quot;corrected&quot; when actually sent *after* pacing delay</span></div>
+<div class="line"><a id="l02302" name="l02302"></a><span class="lineno"> 2302</span><span class="comment">   * (hence not `const`).</span></div>
+<div class="line"><a id="l02303" name="l02303"></a><span class="lineno"> 2303</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02304" name="l02304"></a><span class="lineno"> 2304</span><span class="comment">   * @see Fine_clock.  Recall that, due to latter&#39;s properties, `Fine_clock::now()` results monotonically increase</span></div>
+<div class="line"><a id="l02305" name="l02305"></a><span class="lineno"> 2305</span><span class="comment">   *      over time -- a property on which we rely on, particularly since this data member is only assigned</span></div>
+<div class="line"><a id="l02306" name="l02306"></a><span class="lineno"> 2306</span><span class="comment">   *      `Fine_clock::now()` at various times.</span></div>
+<div class="line"><a id="l02307" name="l02307"></a><span class="lineno"> 2307</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02308" name="l02308"></a><span class="lineno"> 2308</span><span class="comment">   * @see Peer_socket::Sent_packet::m_sent_when for more discussion.</span></div>
+<div class="line"><a id="l02309" name="l02309"></a><span class="lineno"> 2309</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02310" name="l02310"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#ad513e58f4eb611c3a91d96df26f53f2c"> 2310</a></span>  <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#ad513e58f4eb611c3a91d96df26f53f2c">m_sent_time</a>;</div>
+<div class="line"><a id="l02311" name="l02311"></a><span class="lineno"> 2311</span><span class="comment"></span> </div>
+<div class="line"><a id="l02312" name="l02312"></a><span class="lineno"> 2312</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02313" name="l02313"></a><span class="lineno"> 2313</span><span class="comment">   * The congestion window size (in bytes) that is used when the packet is sent out.</span></div>
+<div class="line"><a id="l02314" name="l02314"></a><span class="lineno"> 2314</span><span class="comment">   * We store this to pass to the congestion control module when this packet is acked in the future.</span></div>
+<div class="line"><a id="l02315" name="l02315"></a><span class="lineno"> 2315</span><span class="comment">   * Some congestion control algorithms compute CWND based on an earlier CWND value.</span></div>
+<div class="line"><a id="l02316" name="l02316"></a><span class="lineno"> 2316</span><span class="comment">   * Not `const` for similar reason as #m_sent_time.</span></div>
+<div class="line"><a id="l02317" name="l02317"></a><span class="lineno"> 2317</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02318" name="l02318"></a><span class="lineno"> 2318</span><span class="comment">   * @internal</span></div>
+<div class="line"><a id="l02319" name="l02319"></a><span class="lineno"> 2319</span><span class="comment">   * @todo Why is #m_sent_cwnd_bytes in Sent_when `struct` and not directly in `Sent_packet`?  Or maybe it should</span></div>
+<div class="line"><a id="l02320" name="l02320"></a><span class="lineno"> 2320</span><span class="comment">   * stay here, but Sent_when should be renamed `Send_attempt` (or `Send_try` for brevity)?  Yeah, I think that&#39;s</span></div>
+<div class="line"><a id="l02321" name="l02321"></a><span class="lineno"> 2321</span><span class="comment">   * it.  Then Sent_packet::m_sent_when -- a container of Sent_when objects -- would become `m_send_tries`, a</span></div>
+<div class="line"><a id="l02322" name="l02322"></a><span class="lineno"> 2322</span><span class="comment">   * container of `Send_try` objects.  That makes more sense (sentce?!) than the status quo which involves the</span></div>
+<div class="line"><a id="l02323" name="l02323"></a><span class="lineno"> 2323</span><span class="comment">   * singular-means-plural strangeness.</span></div>
+<div class="line"><a id="l02324" name="l02324"></a><span class="lineno"> 2324</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02325" name="l02325"></a><span class="lineno"> 2325</span><span class="comment">   * @todo Can we make #m_sent_cwnd_bytes and some of its peers `const`?</span></div>
+<div class="line"><a id="l02326" name="l02326"></a><span class="lineno"> 2326</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02327" name="l02327"></a><span class="lineno"> 2327</span>  <span class="comment">// That @internal should not be necessary to hide the @todo in public generated docs -- Doxygen bug?</span></div>
+<div class="line"><a id="l02328" name="l02328"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#abc5bf2e627dad5d2dcfb0324853b37f7"> 2328</a></span>  <span class="keywordtype">size_t</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#abc5bf2e627dad5d2dcfb0324853b37f7">m_sent_cwnd_bytes</a>;</div>
+<div class="line"><a id="l02329" name="l02329"></a><span class="lineno"> 2329</span>}; <span class="comment">// struct Peer_socket::Sent_packet::Sent_when</span></div>
+<div class="line"><a id="l02330" name="l02330"></a><span class="lineno"> 2330</span><span class="comment"></span> </div>
+<div class="line"><a id="l02331" name="l02331"></a><span class="lineno"> 2331</span><span class="comment">/**</span></div>
+<div class="line"><a id="l02332" name="l02332"></a><span class="lineno"> 2332</span><span class="comment"> * @private</span></div>
+<div class="line"><a id="l02333" name="l02333"></a><span class="lineno"> 2333</span><span class="comment"> *</span></div>
+<div class="line"><a id="l02334" name="l02334"></a><span class="lineno"> 2334</span><span class="comment"> * Metadata (and data, if retransmission is on) for a packet that has been received (and, if</span></div>
+<div class="line"><a id="l02335" name="l02335"></a><span class="lineno"> 2335</span><span class="comment"> * retransmission is off, copied to Receive buffer).  This is purely a data store, not a class.</span></div>
+<div class="line"><a id="l02336" name="l02336"></a><span class="lineno"> 2336</span><span class="comment"> * It is not copyable, and moving them around by smart Received_packet::Ptr is encouraged.</span></div>
+<div class="line"><a id="l02337" name="l02337"></a><span class="lineno"> 2337</span><span class="comment"> */</span></div>
+<div class="line"><a id="l02338" name="l02338"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html"> 2338</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html">Peer_socket::Received_packet</a> :</div>
+<div class="line"><a id="l02339" name="l02339"></a><span class="lineno"> 2339</span>  <span class="comment">// Endow us with shared_ptr&lt;&gt;s ::Ptr and ::Const_ptr (syntactic sugar).</span></div>
+<div class="line"><a id="l02340" name="l02340"></a><span class="lineno"> 2340</span>  <span class="keyword">public</span> <a class="code hl_class" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html">util::Shared_ptr_alias_holder</a>&lt;boost::shared_ptr&lt;Peer_socket::Received_packet&gt;&gt;,</div>
+<div class="line"><a id="l02341" name="l02341"></a><span class="lineno"> 2341</span>  <span class="keyword">private</span> boost::noncopyable</div>
+<div class="line"><a id="l02342" name="l02342"></a><span class="lineno"> 2342</span>{</div>
+<div class="line"><a id="l02343" name="l02343"></a><span class="lineno"> 2343</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l02344" name="l02344"></a><span class="lineno"> 2344</span><span class="comment"></span> </div>
+<div class="line"><a id="l02345" name="l02345"></a><span class="lineno"> 2345</span><span class="comment">  /// Number of bytes in the Data_packet::m_data field of that packet.</span></div>
+<div class="line"><a id="l02346" name="l02346"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#a7d0760b1dead081bdcf775fbca7f708b"> 2346</a></span><span class="comment"></span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#a7d0760b1dead081bdcf775fbca7f708b">m_size</a>;</div>
+<div class="line"><a id="l02347" name="l02347"></a><span class="lineno"> 2347</span><span class="comment"></span> </div>
+<div class="line"><a id="l02348" name="l02348"></a><span class="lineno"> 2348</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02349" name="l02349"></a><span class="lineno"> 2349</span><span class="comment">   * Byte sequence equal to that of Data_packet::m_data of the packet.  Kept `empty()` if retransmission is off,</span></div>
+<div class="line"><a id="l02350" name="l02350"></a><span class="lineno"> 2350</span><span class="comment">   * since in that mode any received packet&#39;s `m_data` is immediately moved to Receive buffer.  With</span></div>
+<div class="line"><a id="l02351" name="l02351"></a><span class="lineno"> 2351</span><span class="comment">   * retransmission on, it is stored until all gaps before the packet are filled (a/k/a</span></div>
+<div class="line"><a id="l02352" name="l02352"></a><span class="lineno"> 2352</span><span class="comment">   * reassembly).</span></div>
+<div class="line"><a id="l02353" name="l02353"></a><span class="lineno"> 2353</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02354" name="l02354"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#ac3e88e37e53d2572f89c599e520e3e2a"> 2354</a></span>  <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#ac3e88e37e53d2572f89c599e520e3e2a">m_data</a>;</div>
+<div class="line"><a id="l02355" name="l02355"></a><span class="lineno"> 2355</span> </div>
+<div class="line"><a id="l02356" name="l02356"></a><span class="lineno"> 2356</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l02357" name="l02357"></a><span class="lineno"> 2357</span><span class="comment"></span> </div>
+<div class="line"><a id="l02358" name="l02358"></a><span class="lineno"> 2358</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02359" name="l02359"></a><span class="lineno"> 2359</span><span class="comment">   * Constructs object by storing size of data and, if so instructed, the data themselves.</span></div>
+<div class="line"><a id="l02360" name="l02360"></a><span class="lineno"> 2360</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02361" name="l02361"></a><span class="lineno"> 2361</span><span class="comment">   * @param logger_ptr</span></div>
+<div class="line"><a id="l02362" name="l02362"></a><span class="lineno"> 2362</span><span class="comment">   *        The Logger implementation to use subsequently.</span></div>
+<div class="line"><a id="l02363" name="l02363"></a><span class="lineno"> 2363</span><span class="comment">   * @param size</span></div>
+<div class="line"><a id="l02364" name="l02364"></a><span class="lineno"> 2364</span><span class="comment">   *        #m_size.</span></div>
+<div class="line"><a id="l02365" name="l02365"></a><span class="lineno"> 2365</span><span class="comment">   * @param src_data</span></div>
+<div class="line"><a id="l02366" name="l02366"></a><span class="lineno"> 2366</span><span class="comment">   *        Pointer to the packet data to be moved into #m_data; or null if we shouldn&#39;t store it.</span></div>
+<div class="line"><a id="l02367" name="l02367"></a><span class="lineno"> 2367</span><span class="comment">   *        This should be null if and only if retransmission is off.  If not null, for</span></div>
+<div class="line"><a id="l02368" name="l02368"></a><span class="lineno"> 2368</span><span class="comment">   *        performance, `*src_data` is CLEARED by this constructor (its data moved, in constant</span></div>
+<div class="line"><a id="l02369" name="l02369"></a><span class="lineno"> 2369</span><span class="comment">   *        time, into #m_data).  In that case, `src_data.size() == size` must be true at entrance to</span></div>
+<div class="line"><a id="l02370" name="l02370"></a><span class="lineno"> 2370</span><span class="comment">   *        constructor, or behavior is undefined.</span></div>
+<div class="line"><a id="l02371" name="l02371"></a><span class="lineno"> 2371</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02372" name="l02372"></a><span class="lineno"> 2372</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#a9f0809d5dd7272e31f4111ee2be97330">Received_packet</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr, <span class="keywordtype">size_t</span> size, <a class="code hl_typedef" href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">util::Blob</a>* src_data);</div>
+<div class="line"><a id="l02373" name="l02373"></a><span class="lineno"> 2373</span>};</div>
+<div class="line"><a id="l02374" name="l02374"></a><span class="lineno"> 2374</span><span class="comment"></span> </div>
+<div class="line"><a id="l02375" name="l02375"></a><span class="lineno"> 2375</span><span class="comment">/**</span></div>
+<div class="line"><a id="l02376" name="l02376"></a><span class="lineno"> 2376</span><span class="comment"> * @private</span></div>
+<div class="line"><a id="l02377" name="l02377"></a><span class="lineno"> 2377</span><span class="comment"> *</span></div>
+<div class="line"><a id="l02378" name="l02378"></a><span class="lineno"> 2378</span><span class="comment"> * Metadata describing the data sent in the acknowledgment of an individual received packet.  (A</span></div>
+<div class="line"><a id="l02379" name="l02379"></a><span class="lineno"> 2379</span><span class="comment"> * low-level ACK packet may include several sets of such data.)  This is purely a data store, not</span></div>
+<div class="line"><a id="l02380" name="l02380"></a><span class="lineno"> 2380</span><span class="comment"> * a class.  It is not copyable, and moving them around by smart Individual_ack::Ptr is encouraged.</span></div>
+<div class="line"><a id="l02381" name="l02381"></a><span class="lineno"> 2381</span><span class="comment"> * Construct this by direct member initialization.</span></div>
+<div class="line"><a id="l02382" name="l02382"></a><span class="lineno"> 2382</span><span class="comment"> */</span></div>
+<div class="line"><a id="l02383" name="l02383"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html"> 2383</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">Peer_socket::Individual_ack</a></div>
+<div class="line"><a id="l02384" name="l02384"></a><span class="lineno"> 2384</span>  <span class="comment">// Cannot use boost::noncopyable or Shared_ptr_alias_holder, because that turns off direct initialization.</span></div>
+<div class="line"><a id="l02385" name="l02385"></a><span class="lineno"> 2385</span>{</div>
+<div class="line"><a id="l02386" name="l02386"></a><span class="lineno"> 2386</span>  <span class="comment">// Types.</span></div>
+<div class="line"><a id="l02387" name="l02387"></a><span class="lineno"> 2387</span><span class="comment"></span> </div>
+<div class="line"><a id="l02388" name="l02388"></a><span class="lineno"> 2388</span><span class="comment">  /// Short-hand for ref-counted pointer to mutable objects of this class.</span></div>
+<div class="line"><a id="l02389" name="l02389"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3"> 2389</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3">Ptr</a> = boost::shared_ptr&lt;Individual_ack&gt;;</div>
+<div class="line"><a id="l02390" name="l02390"></a><span class="lineno"> 2390</span><span class="comment"></span> </div>
+<div class="line"><a id="l02391" name="l02391"></a><span class="lineno"> 2391</span><span class="comment">  /// Short-hand for ref-counted pointer to immutable objects of this class.</span></div>
+<div class="line"><a id="l02392" name="l02392"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b"> 2392</a></span><span class="comment"></span>  <span class="keyword">using </span><a class="code hl_typedef" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">Const_ptr</a> = boost::shared_ptr&lt;const Individual_ack&gt;;</div>
+<div class="line"><a id="l02393" name="l02393"></a><span class="lineno"> 2393</span> </div>
+<div class="line"><a id="l02394" name="l02394"></a><span class="lineno"> 2394</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l02395" name="l02395"></a><span class="lineno"> 2395</span><span class="comment"></span> </div>
+<div class="line"><a id="l02396" name="l02396"></a><span class="lineno"> 2396</span><span class="comment">  /// Sequence number of first datum in packet.</span></div>
+<div class="line"><a id="l02397" name="l02397"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a8a237605b83d8a0d1b175395a83ad768"> 2397</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a8a237605b83d8a0d1b175395a83ad768">m_seq_num</a>;</div>
+<div class="line"><a id="l02398" name="l02398"></a><span class="lineno"> 2398</span><span class="comment"></span> </div>
+<div class="line"><a id="l02399" name="l02399"></a><span class="lineno"> 2399</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l02400" name="l02400"></a><span class="lineno"> 2400</span><span class="comment">   * Retransmit counter of the packet (as reported by sender).  Identifies which attempt we are</span></div>
+<div class="line"><a id="l02401" name="l02401"></a><span class="lineno"> 2401</span><span class="comment">   * acknowledging (0 = initial, 1 = first retransmit, 2 = second retransmit, ...).  Always 0</span></div>
+<div class="line"><a id="l02402" name="l02402"></a><span class="lineno"> 2402</span><span class="comment">   * unless retransmission is on.</span></div>
+<div class="line"><a id="l02403" name="l02403"></a><span class="lineno"> 2403</span><span class="comment">   */</span></div>
+<div class="line"><a id="l02404" name="l02404"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a29080d01ac5bc0d51ad407587c6721ab"> 2404</a></span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a29080d01ac5bc0d51ad407587c6721ab">m_rexmit_id</a>;</div>
+<div class="line"><a id="l02405" name="l02405"></a><span class="lineno"> 2405</span><span class="comment"></span> </div>
+<div class="line"><a id="l02406" name="l02406"></a><span class="lineno"> 2406</span><span class="comment">  /// When was it received?  Used for supplying delay before acknowledging (for other side&#39;s RTT calculations).</span></div>
+<div class="line"><a id="l02407" name="l02407"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad6e1407a2a3fc95e568b00f31e423b25"> 2407</a></span><span class="comment"></span>  <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad6e1407a2a3fc95e568b00f31e423b25">m_received_when</a>;</div>
+<div class="line"><a id="l02408" name="l02408"></a><span class="lineno"> 2408</span><span class="comment"></span> </div>
+<div class="line"><a id="l02409" name="l02409"></a><span class="lineno"> 2409</span><span class="comment">  /// Number of bytes in the packet&#39;s user data.</span></div>
+<div class="line"><a id="l02410" name="l02410"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a0af3081c75e1c552807ecc7af416efba"> 2410</a></span><span class="comment"></span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a0af3081c75e1c552807ecc7af416efba">m_data_size</a>;</div>
+<div class="line"><a id="l02411" name="l02411"></a><span class="lineno"> 2411</span><span class="comment"></span> </div>
+<div class="line"><a id="l02412" name="l02412"></a><span class="lineno"> 2412</span><span class="comment">  /// Make us noncopyable without breaking aggregateness (direct-init).</span></div>
+<div class="line"><a id="l02413" name="l02413"></a><span class="lineno"><a class="line" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#af6ffacd3b12b70bf06b70bc8645315c5"> 2413</a></span><span class="comment"></span>  [[no_unique_address]] <a class="code hl_struct" href="structflow_1_1util_1_1Noncopyable.html">util::Noncopyable</a> <a class="code hl_variable" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#af6ffacd3b12b70bf06b70bc8645315c5">m_nc</a>{};</div>
+<div class="line"><a id="l02414" name="l02414"></a><span class="lineno"> 2414</span>}; <span class="comment">// struct Peer_socket::Individual_ack</span></div>
+<div class="line"><a id="l02415" name="l02415"></a><span class="lineno"> 2415</span><span class="comment">// Note: Some static_assert()s about it currently in peer_socket.cpp in a function {} (for boring reasons).</span></div>
+<div class="line"><a id="l02416" name="l02416"></a><span class="lineno"> 2416</span> </div>
+<div class="line"><a id="l02417" name="l02417"></a><span class="lineno"> 2417</span><span class="comment">// Free functions: in *_fwd.hpp.</span></div>
+<div class="line"><a id="l02418" name="l02418"></a><span class="lineno"> 2418</span> </div>
+<div class="line"><a id="l02419" name="l02419"></a><span class="lineno"> 2419</span><span class="comment">// However the following refer to inner type(s) and hence must be declared here and not _fwd.hpp.</span></div>
+<div class="line"><a id="l02420" name="l02420"></a><span class="lineno"> 2420</span><span class="comment"></span> </div>
+<div class="line"><a id="l02421" name="l02421"></a><span class="lineno"> 2421</span><span class="comment">/**</span></div>
+<div class="line"><a id="l02422" name="l02422"></a><span class="lineno"> 2422</span><span class="comment"> * @internal</span></div>
+<div class="line"><a id="l02423" name="l02423"></a><span class="lineno"> 2423</span><span class="comment"> *</span></div>
+<div class="line"><a id="l02424" name="l02424"></a><span class="lineno"> 2424</span><span class="comment"> * @todo There are a few guys like this which are marked `@internal` (Doxygen command) to hide from generated</span></div>
+<div class="line"><a id="l02425" name="l02425"></a><span class="lineno"> 2425</span><span class="comment"> * public documentation, and that works, but really they should not be visible in the publicly-exported</span></div>
+<div class="line"><a id="l02426" name="l02426"></a><span class="lineno"> 2426</span><span class="comment"> * (not in detail/) header source code; so this should be reorganized for cleanliness.  The prototypes like this one</span></div>
+<div class="line"><a id="l02427" name="l02427"></a><span class="lineno"> 2427</span><span class="comment"> * can be moved to a detail/ header or maybe directly into .cpp that uses them (for those where it&#39;s only one).</span></div>
 <div class="line"><a id="l02428" name="l02428"></a><span class="lineno"> 2428</span><span class="comment"> *</span></div>
-<div class="line"><a id="l02429" name="l02429"></a><span class="lineno"> 2429</span><span class="comment"> * @todo There are a few guys like this which are marked `@internal` (Doxygen command) to hide from generated</span></div>
-<div class="line"><a id="l02430" name="l02430"></a><span class="lineno"> 2430</span><span class="comment"> * public documentation, and that works, but really they should not be visible in the publicly-exported</span></div>
-<div class="line"><a id="l02431" name="l02431"></a><span class="lineno"> 2431</span><span class="comment"> * (not in detail/) header source code; so this should be reorganized for cleanliness.  The prototypes like this one</span></div>
-<div class="line"><a id="l02432" name="l02432"></a><span class="lineno"> 2432</span><span class="comment"> * can be moved to a detail/ header or maybe directly into .cpp that uses them (for those where it&#39;s only one).</span></div>
-<div class="line"><a id="l02433" name="l02433"></a><span class="lineno"> 2433</span><span class="comment"> *</span></div>
-<div class="line"><a id="l02434" name="l02434"></a><span class="lineno"> 2434</span><span class="comment"> * Prints string representation of given socket state to given standard `ostream` and returns the</span></div>
-<div class="line"><a id="l02435" name="l02435"></a><span class="lineno"> 2435</span><span class="comment"> * latter.</span></div>
-<div class="line"><a id="l02436" name="l02436"></a><span class="lineno"> 2436</span><span class="comment"> *</span></div>
-<div class="line"><a id="l02437" name="l02437"></a><span class="lineno"> 2437</span><span class="comment"> * @param os</span></div>
-<div class="line"><a id="l02438" name="l02438"></a><span class="lineno"> 2438</span><span class="comment"> *        Stream to print to.</span></div>
-<div class="line"><a id="l02439" name="l02439"></a><span class="lineno"> 2439</span><span class="comment"> * @param state</span></div>
-<div class="line"><a id="l02440" name="l02440"></a><span class="lineno"> 2440</span><span class="comment"> *        Value to serialize.</span></div>
-<div class="line"><a id="l02441" name="l02441"></a><span class="lineno"> 2441</span><span class="comment"> * @return `os`.</span></div>
-<div class="line"><a id="l02442" name="l02442"></a><span class="lineno"> 2442</span><span class="comment"> */</span></div>
-<div class="line"><a id="l02443" name="l02443"></a><span class="lineno"> 2443</span>std::ostream&amp; <a class="code hl_function" href="namespaceflow_1_1net__flow.html#ab9f537c84f77e9b8fa742fc5dc6d5693">operator&lt;&lt;</a>(std::ostream&amp; os, <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">Peer_socket::Int_state</a> state);</div>
-<div class="line"><a id="l02444" name="l02444"></a><span class="lineno"> 2444</span> </div>
-<div class="line"><a id="l02445" name="l02445"></a><span class="lineno"> 2445</span><span class="comment">// Template implementations.</span></div>
-<div class="line"><a id="l02446" name="l02446"></a><span class="lineno"> 2446</span> </div>
-<div class="line"><a id="l02447" name="l02447"></a><span class="lineno"> 2447</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
-<div class="line"><a id="l02448" name="l02448"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#af90b656d7e0b7e746b8beb4e24717cec"> 2448</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#af90b656d7e0b7e746b8beb4e24717cec">Peer_socket::send</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l02449" name="l02449"></a><span class="lineno"> 2449</span>{</div>
-<div class="line"><a id="l02450" name="l02450"></a><span class="lineno"> 2450</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
-<div class="line"><a id="l02451" name="l02451"></a><span class="lineno"> 2451</span>  <span class="keyword">using </span>bind_ns::bind;</div>
+<div class="line"><a id="l02429" name="l02429"></a><span class="lineno"> 2429</span><span class="comment"> * Prints string representation of given socket state to given standard `ostream` and returns the</span></div>
+<div class="line"><a id="l02430" name="l02430"></a><span class="lineno"> 2430</span><span class="comment"> * latter.</span></div>
+<div class="line"><a id="l02431" name="l02431"></a><span class="lineno"> 2431</span><span class="comment"> *</span></div>
+<div class="line"><a id="l02432" name="l02432"></a><span class="lineno"> 2432</span><span class="comment"> * @param os</span></div>
+<div class="line"><a id="l02433" name="l02433"></a><span class="lineno"> 2433</span><span class="comment"> *        Stream to print to.</span></div>
+<div class="line"><a id="l02434" name="l02434"></a><span class="lineno"> 2434</span><span class="comment"> * @param state</span></div>
+<div class="line"><a id="l02435" name="l02435"></a><span class="lineno"> 2435</span><span class="comment"> *        Value to serialize.</span></div>
+<div class="line"><a id="l02436" name="l02436"></a><span class="lineno"> 2436</span><span class="comment"> * @return `os`.</span></div>
+<div class="line"><a id="l02437" name="l02437"></a><span class="lineno"> 2437</span><span class="comment"> */</span></div>
+<div class="line"><a id="l02438" name="l02438"></a><span class="lineno"> 2438</span>std::ostream&amp; <a class="code hl_function" href="namespaceflow_1_1net__flow.html#ab9f537c84f77e9b8fa742fc5dc6d5693">operator&lt;&lt;</a>(std::ostream&amp; os, <a class="code hl_enumeration" href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">Peer_socket::Int_state</a> state);</div>
+<div class="line"><a id="l02439" name="l02439"></a><span class="lineno"> 2439</span> </div>
+<div class="line"><a id="l02440" name="l02440"></a><span class="lineno"> 2440</span><span class="comment">// Template implementations.</span></div>
+<div class="line"><a id="l02441" name="l02441"></a><span class="lineno"> 2441</span> </div>
+<div class="line"><a id="l02442" name="l02442"></a><span class="lineno"> 2442</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
+<div class="line"><a id="l02443" name="l02443"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#af90b656d7e0b7e746b8beb4e24717cec"> 2443</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#af90b656d7e0b7e746b8beb4e24717cec">Peer_socket::send</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l02444" name="l02444"></a><span class="lineno"> 2444</span>{</div>
+<div class="line"><a id="l02445" name="l02445"></a><span class="lineno"> 2445</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
+<div class="line"><a id="l02446" name="l02446"></a><span class="lineno"> 2446</span>  <span class="keyword">using </span>bind_ns::bind;</div>
+<div class="line"><a id="l02447" name="l02447"></a><span class="lineno"> 2447</span> </div>
+<div class="line"><a id="l02448" name="l02448"></a><span class="lineno"> 2448</span>  <a class="code hl_define" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>(<span class="keywordtype">size_t</span>, Peer_socket::send&lt;Const_buffer_sequence&gt;, bind_ns::cref(data), _1);</div>
+<div class="line"><a id="l02449" name="l02449"></a><span class="lineno"> 2449</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
+<div class="line"><a id="l02450" name="l02450"></a><span class="lineno"> 2450</span> </div>
+<div class="line"><a id="l02451" name="l02451"></a><span class="lineno"> 2451</span>  <span class="comment">// We are in user thread U != W.</span></div>
 <div class="line"><a id="l02452" name="l02452"></a><span class="lineno"> 2452</span> </div>
-<div class="line"><a id="l02453" name="l02453"></a><span class="lineno"> 2453</span>  <a class="code hl_define" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>(<span class="keywordtype">size_t</span>, Peer_socket::send&lt;Const_buffer_sequence&gt;, bind_ns::cref(data), _1);</div>
-<div class="line"><a id="l02454" name="l02454"></a><span class="lineno"> 2454</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
-<div class="line"><a id="l02455" name="l02455"></a><span class="lineno"> 2455</span> </div>
-<div class="line"><a id="l02456" name="l02456"></a><span class="lineno"> 2456</span>  <span class="comment">// We are in user thread U != W.</span></div>
-<div class="line"><a id="l02457" name="l02457"></a><span class="lineno"> 2457</span> </div>
-<div class="line"><a id="l02458" name="l02458"></a><span class="lineno"> 2458</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Lock_guard</a> lock(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">m_mutex</a>); <span class="comment">// Lock m_node; also it&#39;s a pre-condition for Node::send().</span></div>
-<div class="line"><a id="l02459" name="l02459"></a><span class="lineno"> 2459</span> </div>
-<div class="line"><a id="l02460" name="l02460"></a><span class="lineno"> 2460</span>  <span class="comment">/* Forward the rest of the logic to Node.</span></div>
-<div class="line"><a id="l02461" name="l02461"></a><span class="lineno"> 2461</span><span class="comment">   * Now, what I really want to do here is simply:</span></div>
-<div class="line"><a id="l02462" name="l02462"></a><span class="lineno"> 2462</span><span class="comment">   *     m_node-&gt;send(this, data, err_code);</span></div>
-<div class="line"><a id="l02463" name="l02463"></a><span class="lineno"> 2463</span><span class="comment">   * I cannot, however, due to C++&#39;s circular reference BS (Node needs Peer_socket, Peer_socket needs Node,</span></div>
-<div class="line"><a id="l02464" name="l02464"></a><span class="lineno"> 2464</span><span class="comment">   * and both send()s are templates so cannot be implemented in .cpp).  So I perform the following</span></div>
-<div class="line"><a id="l02465" name="l02465"></a><span class="lineno"> 2465</span><span class="comment">   * voodoo.  The only part that must be defined in .hpp is the part that actually uses template</span></div>
-<div class="line"><a id="l02466" name="l02466"></a><span class="lineno"> 2466</span><span class="comment">   * parameters.  The only part that uses template parameters is m_snd_buf-&gt;feed_bufs_copy().</span></div>
-<div class="line"><a id="l02467" name="l02467"></a><span class="lineno"> 2467</span><span class="comment">   * Therefore I prepare a canned call to m_snd_buf-&gt;feed_bufs_copy(data, ...) and save it in a</span></div>
-<div class="line"><a id="l02468" name="l02468"></a><span class="lineno"> 2468</span><span class="comment">   * function pointer (Function) to an untemplated, regular function that makes this canned</span></div>
-<div class="line"><a id="l02469" name="l02469"></a><span class="lineno"> 2469</span><span class="comment">   * call.  Finally, I call an untemplated function in .cpp, which has full understanding of Node,</span></div>
-<div class="line"><a id="l02470" name="l02470"></a><span class="lineno"> 2470</span><span class="comment">   * and pass the pre-canned thingie into that.  That guy finally calls Node::send(), passing along</span></div>
-<div class="line"><a id="l02471" name="l02471"></a><span class="lineno"> 2471</span><span class="comment">   * the precanned thingie.  Node::send() can then call the latter when it needs to feed() to the</span></div>
-<div class="line"><a id="l02472" name="l02472"></a><span class="lineno"> 2472</span><span class="comment">   * buffer.  Therefore Node::send() does not need to be templated.</span></div>
-<div class="line"><a id="l02473" name="l02473"></a><span class="lineno"> 2473</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02474" name="l02474"></a><span class="lineno"> 2474</span><span class="comment">   * Yeah, I know.  I had to do it though.  Logic should be in Node, not in Peer_socket.</span></div>
-<div class="line"><a id="l02475" name="l02475"></a><span class="lineno"> 2475</span><span class="comment">   *</span></div>
-<div class="line"><a id="l02476" name="l02476"></a><span class="lineno"> 2476</span><span class="comment">   * Update: As of this writing I&#39;ve added a formal @todo into Node doc header.  .inl tricks a-la-Boost might</span></div>
-<div class="line"><a id="l02477" name="l02477"></a><span class="lineno"> 2477</span><span class="comment">   * help avoid this issue. */</span></div>
-<div class="line"><a id="l02478" name="l02478"></a><span class="lineno"> 2478</span>  <span class="keyword">const</span> <span class="keyword">auto</span> snd_buf_feed_func = [<span class="keyword">this</span>, &amp;data](<span class="keywordtype">size_t</span> max_data_size)</div>
-<div class="line"><a id="l02479" name="l02479"></a><span class="lineno"> 2479</span>  {</div>
-<div class="line"><a id="l02480" name="l02480"></a><span class="lineno"> 2480</span>    <span class="keywordflow">return</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a993edf95f6bce2e57e7111e42533dc74">m_snd_buf</a>.<a class="code hl_function" href="classflow_1_1net__flow_1_1Socket__buffer.html#a69a0c514df820c36e7109fb1fcf78522">feed_bufs_copy</a>(data, max_data_size);</div>
-<div class="line"><a id="l02481" name="l02481"></a><span class="lineno"> 2481</span>  };</div>
-<div class="line"><a id="l02482" name="l02482"></a><span class="lineno"> 2482</span>  <span class="comment">// ^-- Important to capture `&amp;data`, not `data`; else `data` (albeit not actual payload) will be copied!</span></div>
-<div class="line"><a id="l02483" name="l02483"></a><span class="lineno"> 2483</span> </div>
-<div class="line"><a id="l02484" name="l02484"></a><span class="lineno"> 2484</span>  <span class="comment">/* Let this untemplated function, in .cpp, deal with Node (since .cpp knows what *m_node really is).</span></div>
-<div class="line"><a id="l02485" name="l02485"></a><span class="lineno"> 2485</span><span class="comment">   * Note: whatever contraption lambda generated above will be converted to a Function&lt;...&gt; with ... being</span></div>
-<div class="line"><a id="l02486" name="l02486"></a><span class="lineno"> 2486</span><span class="comment">   * an appropriate signature that node_send() expects, seen in the above explanatory comment. */</span></div>
-<div class="line"><a id="l02487" name="l02487"></a><span class="lineno"> 2487</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a83ba2b4c39555afad67932ea6ed39bbe">node_send</a>(snd_buf_feed_func, err_code);</div>
-<div class="line"><a id="l02488" name="l02488"></a><span class="lineno"> 2488</span>} <span class="comment">// Peer_socket::send()</span></div>
-<div class="line"><a id="l02489" name="l02489"></a><span class="lineno"> 2489</span> </div>
-<div class="line"><a id="l02490" name="l02490"></a><span class="lineno"> 2490</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
-<div class="line"><a id="l02491" name="l02491"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a6b9fa02a7c41b52fde9e05e862a9d20f"> 2491</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">Peer_socket::sync_send</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l02492" name="l02492"></a><span class="lineno"> 2492</span>{</div>
-<div class="line"><a id="l02493" name="l02493"></a><span class="lineno"> 2493</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a3f1a802024549a59978a53343b09a86d">sync_send_impl</a>(data, <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>(), err_code); <span class="comment">// sync_send() with infinite timeout.</span></div>
-<div class="line"><a id="l02494" name="l02494"></a><span class="lineno"> 2494</span>}</div>
-<div class="line"><a id="l02495" name="l02495"></a><span class="lineno"> 2495</span> </div>
-<div class="line"><a id="l02496" name="l02496"></a><span class="lineno"> 2496</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period, <span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
-<div class="line"><a id="l02497" name="l02497"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2"> 2497</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">Peer_socket::sync_send</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data,</div>
-<div class="line"><a id="l02498" name="l02498"></a><span class="lineno"> 2498</span>                              <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait,</div>
-<div class="line"><a id="l02499" name="l02499"></a><span class="lineno"> 2499</span>                              <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l02500" name="l02500"></a><span class="lineno"> 2500</span>{</div>
-<div class="line"><a id="l02501" name="l02501"></a><span class="lineno"> 2501</span>  assert(max_wait.count() &gt; 0);</div>
-<div class="line"><a id="l02502" name="l02502"></a><span class="lineno"> 2502</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a3f1a802024549a59978a53343b09a86d">sync_send_impl</a>(data,</div>
-<div class="line"><a id="l02503" name="l02503"></a><span class="lineno"> 2503</span>                        <a class="code hl_function" href="namespaceflow_1_1util.html#a5488415feb5570a6551892a7bdfeeec4">util::chrono_duration_from_now_to_fine_time_pt</a>(max_wait),</div>
-<div class="line"><a id="l02504" name="l02504"></a><span class="lineno"> 2504</span>                        err_code);</div>
-<div class="line"><a id="l02505" name="l02505"></a><span class="lineno"> 2505</span>}</div>
-<div class="line"><a id="l02506" name="l02506"></a><span class="lineno"> 2506</span> </div>
-<div class="line"><a id="l02507" name="l02507"></a><span class="lineno"> 2507</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period&gt;</div>
-<div class="line"><a id="l02508" name="l02508"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a28cb6fc51585c9fa2bf2f152675615a1"> 2508</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">Peer_socket::sync_send</a>(<span class="keyword">const</span> boost::asio::null_buffers&amp;,</div>
-<div class="line"><a id="l02509" name="l02509"></a><span class="lineno"> 2509</span>                            <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait,</div>
-<div class="line"><a id="l02510" name="l02510"></a><span class="lineno"> 2510</span>                            <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l02511" name="l02511"></a><span class="lineno"> 2511</span>{</div>
-<div class="line"><a id="l02512" name="l02512"></a><span class="lineno"> 2512</span>  assert(max_wait.count() &gt; 0);</div>
-<div class="line"><a id="l02513" name="l02513"></a><span class="lineno"> 2513</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a15ba1d4af6d4e3fcab9534a307c00595">sync_send_reactor_pattern_impl</a>(<a class="code hl_function" href="namespaceflow_1_1util.html#a5488415feb5570a6551892a7bdfeeec4">util::chrono_duration_from_now_to_fine_time_pt</a>(max_wait),</div>
-<div class="line"><a id="l02514" name="l02514"></a><span class="lineno"> 2514</span>                                        err_code);</div>
-<div class="line"><a id="l02515" name="l02515"></a><span class="lineno"> 2515</span>}</div>
-<div class="line"><a id="l02516" name="l02516"></a><span class="lineno"> 2516</span> </div>
-<div class="line"><a id="l02517" name="l02517"></a><span class="lineno"> 2517</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
-<div class="line"><a id="l02518" name="l02518"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a3f1a802024549a59978a53343b09a86d"> 2518</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a3f1a802024549a59978a53343b09a86d">Peer_socket::sync_send_impl</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until,</div>
-<div class="line"><a id="l02519" name="l02519"></a><span class="lineno"> 2519</span>                                   <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l02520" name="l02520"></a><span class="lineno"> 2520</span>{</div>
-<div class="line"><a id="l02521" name="l02521"></a><span class="lineno"> 2521</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
-<div class="line"><a id="l02522" name="l02522"></a><span class="lineno"> 2522</span>  <span class="keyword">using </span>bind_ns::bind;</div>
-<div class="line"><a id="l02523" name="l02523"></a><span class="lineno"> 2523</span> </div>
-<div class="line"><a id="l02524" name="l02524"></a><span class="lineno"> 2524</span>  <a class="code hl_define" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>(<span class="keywordtype">size_t</span>, Peer_socket::sync_send_impl&lt;Const_buffer_sequence&gt;,</div>
-<div class="line"><a id="l02525" name="l02525"></a><span class="lineno"> 2525</span>                                     bind_ns::cref(data), bind_ns::cref(wait_until), _1);</div>
-<div class="line"><a id="l02526" name="l02526"></a><span class="lineno"> 2526</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
-<div class="line"><a id="l02527" name="l02527"></a><span class="lineno"> 2527</span> </div>
-<div class="line"><a id="l02528" name="l02528"></a><span class="lineno"> 2528</span>  <span class="comment">// We are in user thread U != W.</span></div>
-<div class="line"><a id="l02529" name="l02529"></a><span class="lineno"> 2529</span> </div>
-<div class="line"><a id="l02530" name="l02530"></a><span class="lineno"> 2530</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Lock_guard</a> lock(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">m_mutex</a>); <span class="comment">// Lock m_node; also it&#39;s a pre-condition for Node::send().</span></div>
-<div class="line"><a id="l02531" name="l02531"></a><span class="lineno"> 2531</span> </div>
-<div class="line"><a id="l02532" name="l02532"></a><span class="lineno"> 2532</span>  <span class="comment">/* Forward the rest of the logic to Node.</span></div>
-<div class="line"><a id="l02533" name="l02533"></a><span class="lineno"> 2533</span><span class="comment">   * Now, what I really want to do here is simply:</span></div>
-<div class="line"><a id="l02534" name="l02534"></a><span class="lineno"> 2534</span><span class="comment">   *     m_node-&gt;sync_send(...args...);</span></div>
-<div class="line"><a id="l02535" name="l02535"></a><span class="lineno"> 2535</span><span class="comment">   * I cannot, however, due to &lt;see same situation explained in Peer_socket::send()&gt;.</span></div>
-<div class="line"><a id="l02536" name="l02536"></a><span class="lineno"> 2536</span><span class="comment">   * Therefore I do the following (&lt;see Peer_socket::send() for more comments&gt;). */</span></div>
-<div class="line"><a id="l02537" name="l02537"></a><span class="lineno"> 2537</span> </div>
-<div class="line"><a id="l02538" name="l02538"></a><span class="lineno"> 2538</span>  <span class="keyword">const</span> <span class="keyword">auto</span> snd_buf_feed_func = [<span class="keyword">this</span>, &amp;data](<span class="keywordtype">size_t</span> max_data_size)</div>
-<div class="line"><a id="l02539" name="l02539"></a><span class="lineno"> 2539</span>  {</div>
-<div class="line"><a id="l02540" name="l02540"></a><span class="lineno"> 2540</span>    <span class="keywordflow">return</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a993edf95f6bce2e57e7111e42533dc74">m_snd_buf</a>.<a class="code hl_function" href="classflow_1_1net__flow_1_1Socket__buffer.html#a69a0c514df820c36e7109fb1fcf78522">feed_bufs_copy</a>(data, max_data_size);</div>
-<div class="line"><a id="l02541" name="l02541"></a><span class="lineno"> 2541</span>  };</div>
-<div class="line"><a id="l02542" name="l02542"></a><span class="lineno"> 2542</span>  <span class="comment">// ^-- Important to capture `&amp;data`, not `data`; else `data` (albeit not actual payload) will be copied!</span></div>
-<div class="line"><a id="l02543" name="l02543"></a><span class="lineno"> 2543</span> </div>
-<div class="line"><a id="l02544" name="l02544"></a><span class="lineno"> 2544</span>  lock.release(); <span class="comment">// Let go of the mutex (mutex is still LOCKED).</span></div>
-<div class="line"><a id="l02545" name="l02545"></a><span class="lineno"> 2545</span>  <span class="comment">/* Let this untemplated function, in .cpp, deal with Node (since .cpp knows what *m_node really is).</span></div>
-<div class="line"><a id="l02546" name="l02546"></a><span class="lineno"> 2546</span><span class="comment">   * Note: whatever contraption lambda generated above will be converted to a Function&lt;...&gt; with ... being</span></div>
-<div class="line"><a id="l02547" name="l02547"></a><span class="lineno"> 2547</span><span class="comment">   * an appropriate signature that node_sync_send() expects, seen in the above explanatory comment. */</span></div>
-<div class="line"><a id="l02548" name="l02548"></a><span class="lineno"> 2548</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a34e2c7dfb5596269a6f86a716015f1a6">node_sync_send</a>(snd_buf_feed_func, wait_until, err_code);</div>
-<div class="line"><a id="l02549" name="l02549"></a><span class="lineno"> 2549</span>} <span class="comment">// Peer_socket::sync_send_impl()</span></div>
-<div class="line"><a id="l02550" name="l02550"></a><span class="lineno"> 2550</span> </div>
-<div class="line"><a id="l02551" name="l02551"></a><span class="lineno"> 2551</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
-<div class="line"><a id="l02552" name="l02552"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0"> 2552</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0">Peer_socket::receive</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l02553" name="l02553"></a><span class="lineno"> 2553</span>{</div>
-<div class="line"><a id="l02554" name="l02554"></a><span class="lineno"> 2554</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
-<div class="line"><a id="l02555" name="l02555"></a><span class="lineno"> 2555</span>  <span class="keyword">using </span>bind_ns::bind;</div>
+<div class="line"><a id="l02453" name="l02453"></a><span class="lineno"> 2453</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Lock_guard</a> lock(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">m_mutex</a>); <span class="comment">// Lock m_node; also it&#39;s a pre-condition for Node::send().</span></div>
+<div class="line"><a id="l02454" name="l02454"></a><span class="lineno"> 2454</span> </div>
+<div class="line"><a id="l02455" name="l02455"></a><span class="lineno"> 2455</span>  <span class="comment">/* Forward the rest of the logic to Node.</span></div>
+<div class="line"><a id="l02456" name="l02456"></a><span class="lineno"> 2456</span><span class="comment">   * Now, what I really want to do here is simply:</span></div>
+<div class="line"><a id="l02457" name="l02457"></a><span class="lineno"> 2457</span><span class="comment">   *     m_node-&gt;send(this, data, err_code);</span></div>
+<div class="line"><a id="l02458" name="l02458"></a><span class="lineno"> 2458</span><span class="comment">   * I cannot, however, due to C++&#39;s circular reference BS (Node needs Peer_socket, Peer_socket needs Node,</span></div>
+<div class="line"><a id="l02459" name="l02459"></a><span class="lineno"> 2459</span><span class="comment">   * and both send()s are templates so cannot be implemented in .cpp).  So I perform the following</span></div>
+<div class="line"><a id="l02460" name="l02460"></a><span class="lineno"> 2460</span><span class="comment">   * voodoo.  The only part that must be defined in .hpp is the part that actually uses template</span></div>
+<div class="line"><a id="l02461" name="l02461"></a><span class="lineno"> 2461</span><span class="comment">   * parameters.  The only part that uses template parameters is m_snd_buf-&gt;feed_bufs_copy().</span></div>
+<div class="line"><a id="l02462" name="l02462"></a><span class="lineno"> 2462</span><span class="comment">   * Therefore I prepare a canned call to m_snd_buf-&gt;feed_bufs_copy(data, ...) and save it in a</span></div>
+<div class="line"><a id="l02463" name="l02463"></a><span class="lineno"> 2463</span><span class="comment">   * function pointer (Function) to an untemplated, regular function that makes this canned</span></div>
+<div class="line"><a id="l02464" name="l02464"></a><span class="lineno"> 2464</span><span class="comment">   * call.  Finally, I call an untemplated function in .cpp, which has full understanding of Node,</span></div>
+<div class="line"><a id="l02465" name="l02465"></a><span class="lineno"> 2465</span><span class="comment">   * and pass the pre-canned thingie into that.  That guy finally calls Node::send(), passing along</span></div>
+<div class="line"><a id="l02466" name="l02466"></a><span class="lineno"> 2466</span><span class="comment">   * the precanned thingie.  Node::send() can then call the latter when it needs to feed() to the</span></div>
+<div class="line"><a id="l02467" name="l02467"></a><span class="lineno"> 2467</span><span class="comment">   * buffer.  Therefore Node::send() does not need to be templated.</span></div>
+<div class="line"><a id="l02468" name="l02468"></a><span class="lineno"> 2468</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02469" name="l02469"></a><span class="lineno"> 2469</span><span class="comment">   * Yeah, I know.  I had to do it though.  Logic should be in Node, not in Peer_socket.</span></div>
+<div class="line"><a id="l02470" name="l02470"></a><span class="lineno"> 2470</span><span class="comment">   *</span></div>
+<div class="line"><a id="l02471" name="l02471"></a><span class="lineno"> 2471</span><span class="comment">   * Update: As of this writing I&#39;ve added a formal @todo into Node doc header.  .inl tricks a-la-Boost might</span></div>
+<div class="line"><a id="l02472" name="l02472"></a><span class="lineno"> 2472</span><span class="comment">   * help avoid this issue. */</span></div>
+<div class="line"><a id="l02473" name="l02473"></a><span class="lineno"> 2473</span>  <span class="keyword">const</span> <span class="keyword">auto</span> snd_buf_feed_func = [<span class="keyword">this</span>, &amp;data](<span class="keywordtype">size_t</span> max_data_size)</div>
+<div class="line"><a id="l02474" name="l02474"></a><span class="lineno"> 2474</span>  {</div>
+<div class="line"><a id="l02475" name="l02475"></a><span class="lineno"> 2475</span>    <span class="keywordflow">return</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a993edf95f6bce2e57e7111e42533dc74">m_snd_buf</a>.<a class="code hl_function" href="classflow_1_1net__flow_1_1Socket__buffer.html#a69a0c514df820c36e7109fb1fcf78522">feed_bufs_copy</a>(data, max_data_size);</div>
+<div class="line"><a id="l02476" name="l02476"></a><span class="lineno"> 2476</span>  };</div>
+<div class="line"><a id="l02477" name="l02477"></a><span class="lineno"> 2477</span>  <span class="comment">// ^-- Important to capture `&amp;data`, not `data`; else `data` (albeit not actual payload) will be copied!</span></div>
+<div class="line"><a id="l02478" name="l02478"></a><span class="lineno"> 2478</span> </div>
+<div class="line"><a id="l02479" name="l02479"></a><span class="lineno"> 2479</span>  <span class="comment">/* Let this untemplated function, in .cpp, deal with Node (since .cpp knows what *m_node really is).</span></div>
+<div class="line"><a id="l02480" name="l02480"></a><span class="lineno"> 2480</span><span class="comment">   * Note: whatever contraption lambda generated above will be converted to a Function&lt;...&gt; with ... being</span></div>
+<div class="line"><a id="l02481" name="l02481"></a><span class="lineno"> 2481</span><span class="comment">   * an appropriate signature that node_send() expects, seen in the above explanatory comment. */</span></div>
+<div class="line"><a id="l02482" name="l02482"></a><span class="lineno"> 2482</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a83ba2b4c39555afad67932ea6ed39bbe">node_send</a>(snd_buf_feed_func, err_code);</div>
+<div class="line"><a id="l02483" name="l02483"></a><span class="lineno"> 2483</span>} <span class="comment">// Peer_socket::send()</span></div>
+<div class="line"><a id="l02484" name="l02484"></a><span class="lineno"> 2484</span> </div>
+<div class="line"><a id="l02485" name="l02485"></a><span class="lineno"> 2485</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
+<div class="line"><a id="l02486" name="l02486"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a6b9fa02a7c41b52fde9e05e862a9d20f"> 2486</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">Peer_socket::sync_send</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l02487" name="l02487"></a><span class="lineno"> 2487</span>{</div>
+<div class="line"><a id="l02488" name="l02488"></a><span class="lineno"> 2488</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a3f1a802024549a59978a53343b09a86d">sync_send_impl</a>(data, <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>(), err_code); <span class="comment">// sync_send() with infinite timeout.</span></div>
+<div class="line"><a id="l02489" name="l02489"></a><span class="lineno"> 2489</span>}</div>
+<div class="line"><a id="l02490" name="l02490"></a><span class="lineno"> 2490</span> </div>
+<div class="line"><a id="l02491" name="l02491"></a><span class="lineno"> 2491</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period, <span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
+<div class="line"><a id="l02492" name="l02492"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2"> 2492</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">Peer_socket::sync_send</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data,</div>
+<div class="line"><a id="l02493" name="l02493"></a><span class="lineno"> 2493</span>                              <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait,</div>
+<div class="line"><a id="l02494" name="l02494"></a><span class="lineno"> 2494</span>                              <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l02495" name="l02495"></a><span class="lineno"> 2495</span>{</div>
+<div class="line"><a id="l02496" name="l02496"></a><span class="lineno"> 2496</span>  assert(max_wait.count() &gt; 0);</div>
+<div class="line"><a id="l02497" name="l02497"></a><span class="lineno"> 2497</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a3f1a802024549a59978a53343b09a86d">sync_send_impl</a>(data,</div>
+<div class="line"><a id="l02498" name="l02498"></a><span class="lineno"> 2498</span>                        <a class="code hl_function" href="namespaceflow_1_1util.html#a5488415feb5570a6551892a7bdfeeec4">util::chrono_duration_from_now_to_fine_time_pt</a>(max_wait),</div>
+<div class="line"><a id="l02499" name="l02499"></a><span class="lineno"> 2499</span>                        err_code);</div>
+<div class="line"><a id="l02500" name="l02500"></a><span class="lineno"> 2500</span>}</div>
+<div class="line"><a id="l02501" name="l02501"></a><span class="lineno"> 2501</span> </div>
+<div class="line"><a id="l02502" name="l02502"></a><span class="lineno"> 2502</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period&gt;</div>
+<div class="line"><a id="l02503" name="l02503"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a28cb6fc51585c9fa2bf2f152675615a1"> 2503</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">Peer_socket::sync_send</a>(<span class="keyword">const</span> boost::asio::null_buffers&amp;,</div>
+<div class="line"><a id="l02504" name="l02504"></a><span class="lineno"> 2504</span>                            <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait,</div>
+<div class="line"><a id="l02505" name="l02505"></a><span class="lineno"> 2505</span>                            <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l02506" name="l02506"></a><span class="lineno"> 2506</span>{</div>
+<div class="line"><a id="l02507" name="l02507"></a><span class="lineno"> 2507</span>  assert(max_wait.count() &gt; 0);</div>
+<div class="line"><a id="l02508" name="l02508"></a><span class="lineno"> 2508</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a15ba1d4af6d4e3fcab9534a307c00595">sync_send_reactor_pattern_impl</a>(<a class="code hl_function" href="namespaceflow_1_1util.html#a5488415feb5570a6551892a7bdfeeec4">util::chrono_duration_from_now_to_fine_time_pt</a>(max_wait),</div>
+<div class="line"><a id="l02509" name="l02509"></a><span class="lineno"> 2509</span>                                        err_code);</div>
+<div class="line"><a id="l02510" name="l02510"></a><span class="lineno"> 2510</span>}</div>
+<div class="line"><a id="l02511" name="l02511"></a><span class="lineno"> 2511</span> </div>
+<div class="line"><a id="l02512" name="l02512"></a><span class="lineno"> 2512</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
+<div class="line"><a id="l02513" name="l02513"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a3f1a802024549a59978a53343b09a86d"> 2513</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a3f1a802024549a59978a53343b09a86d">Peer_socket::sync_send_impl</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until,</div>
+<div class="line"><a id="l02514" name="l02514"></a><span class="lineno"> 2514</span>                                   <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l02515" name="l02515"></a><span class="lineno"> 2515</span>{</div>
+<div class="line"><a id="l02516" name="l02516"></a><span class="lineno"> 2516</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
+<div class="line"><a id="l02517" name="l02517"></a><span class="lineno"> 2517</span>  <span class="keyword">using </span>bind_ns::bind;</div>
+<div class="line"><a id="l02518" name="l02518"></a><span class="lineno"> 2518</span> </div>
+<div class="line"><a id="l02519" name="l02519"></a><span class="lineno"> 2519</span>  <a class="code hl_define" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>(<span class="keywordtype">size_t</span>, Peer_socket::sync_send_impl&lt;Const_buffer_sequence&gt;,</div>
+<div class="line"><a id="l02520" name="l02520"></a><span class="lineno"> 2520</span>                                     bind_ns::cref(data), bind_ns::cref(wait_until), _1);</div>
+<div class="line"><a id="l02521" name="l02521"></a><span class="lineno"> 2521</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
+<div class="line"><a id="l02522" name="l02522"></a><span class="lineno"> 2522</span> </div>
+<div class="line"><a id="l02523" name="l02523"></a><span class="lineno"> 2523</span>  <span class="comment">// We are in user thread U != W.</span></div>
+<div class="line"><a id="l02524" name="l02524"></a><span class="lineno"> 2524</span> </div>
+<div class="line"><a id="l02525" name="l02525"></a><span class="lineno"> 2525</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Lock_guard</a> lock(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">m_mutex</a>); <span class="comment">// Lock m_node; also it&#39;s a pre-condition for Node::send().</span></div>
+<div class="line"><a id="l02526" name="l02526"></a><span class="lineno"> 2526</span> </div>
+<div class="line"><a id="l02527" name="l02527"></a><span class="lineno"> 2527</span>  <span class="comment">/* Forward the rest of the logic to Node.</span></div>
+<div class="line"><a id="l02528" name="l02528"></a><span class="lineno"> 2528</span><span class="comment">   * Now, what I really want to do here is simply:</span></div>
+<div class="line"><a id="l02529" name="l02529"></a><span class="lineno"> 2529</span><span class="comment">   *     m_node-&gt;sync_send(...args...);</span></div>
+<div class="line"><a id="l02530" name="l02530"></a><span class="lineno"> 2530</span><span class="comment">   * I cannot, however, due to &lt;see same situation explained in Peer_socket::send()&gt;.</span></div>
+<div class="line"><a id="l02531" name="l02531"></a><span class="lineno"> 2531</span><span class="comment">   * Therefore I do the following (&lt;see Peer_socket::send() for more comments&gt;). */</span></div>
+<div class="line"><a id="l02532" name="l02532"></a><span class="lineno"> 2532</span> </div>
+<div class="line"><a id="l02533" name="l02533"></a><span class="lineno"> 2533</span>  <span class="keyword">const</span> <span class="keyword">auto</span> snd_buf_feed_func = [<span class="keyword">this</span>, &amp;data](<span class="keywordtype">size_t</span> max_data_size)</div>
+<div class="line"><a id="l02534" name="l02534"></a><span class="lineno"> 2534</span>  {</div>
+<div class="line"><a id="l02535" name="l02535"></a><span class="lineno"> 2535</span>    <span class="keywordflow">return</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#a993edf95f6bce2e57e7111e42533dc74">m_snd_buf</a>.<a class="code hl_function" href="classflow_1_1net__flow_1_1Socket__buffer.html#a69a0c514df820c36e7109fb1fcf78522">feed_bufs_copy</a>(data, max_data_size);</div>
+<div class="line"><a id="l02536" name="l02536"></a><span class="lineno"> 2536</span>  };</div>
+<div class="line"><a id="l02537" name="l02537"></a><span class="lineno"> 2537</span>  <span class="comment">// ^-- Important to capture `&amp;data`, not `data`; else `data` (albeit not actual payload) will be copied!</span></div>
+<div class="line"><a id="l02538" name="l02538"></a><span class="lineno"> 2538</span> </div>
+<div class="line"><a id="l02539" name="l02539"></a><span class="lineno"> 2539</span>  lock.release(); <span class="comment">// Let go of the mutex (mutex is still LOCKED).</span></div>
+<div class="line"><a id="l02540" name="l02540"></a><span class="lineno"> 2540</span>  <span class="comment">/* Let this untemplated function, in .cpp, deal with Node (since .cpp knows what *m_node really is).</span></div>
+<div class="line"><a id="l02541" name="l02541"></a><span class="lineno"> 2541</span><span class="comment">   * Note: whatever contraption lambda generated above will be converted to a Function&lt;...&gt; with ... being</span></div>
+<div class="line"><a id="l02542" name="l02542"></a><span class="lineno"> 2542</span><span class="comment">   * an appropriate signature that node_sync_send() expects, seen in the above explanatory comment. */</span></div>
+<div class="line"><a id="l02543" name="l02543"></a><span class="lineno"> 2543</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a34e2c7dfb5596269a6f86a716015f1a6">node_sync_send</a>(snd_buf_feed_func, wait_until, err_code);</div>
+<div class="line"><a id="l02544" name="l02544"></a><span class="lineno"> 2544</span>} <span class="comment">// Peer_socket::sync_send_impl()</span></div>
+<div class="line"><a id="l02545" name="l02545"></a><span class="lineno"> 2545</span> </div>
+<div class="line"><a id="l02546" name="l02546"></a><span class="lineno"> 2546</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
+<div class="line"><a id="l02547" name="l02547"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0"> 2547</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0">Peer_socket::receive</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l02548" name="l02548"></a><span class="lineno"> 2548</span>{</div>
+<div class="line"><a id="l02549" name="l02549"></a><span class="lineno"> 2549</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
+<div class="line"><a id="l02550" name="l02550"></a><span class="lineno"> 2550</span>  <span class="keyword">using </span>bind_ns::bind;</div>
+<div class="line"><a id="l02551" name="l02551"></a><span class="lineno"> 2551</span> </div>
+<div class="line"><a id="l02552" name="l02552"></a><span class="lineno"> 2552</span>  <a class="code hl_define" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>(<span class="keywordtype">size_t</span>, Peer_socket::receive&lt;Mutable_buffer_sequence&gt;, bind_ns::cref(target), _1);</div>
+<div class="line"><a id="l02553" name="l02553"></a><span class="lineno"> 2553</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
+<div class="line"><a id="l02554" name="l02554"></a><span class="lineno"> 2554</span> </div>
+<div class="line"><a id="l02555" name="l02555"></a><span class="lineno"> 2555</span>  <span class="comment">// We are in user thread U != W.</span></div>
 <div class="line"><a id="l02556" name="l02556"></a><span class="lineno"> 2556</span> </div>
-<div class="line"><a id="l02557" name="l02557"></a><span class="lineno"> 2557</span>  <a class="code hl_define" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>(<span class="keywordtype">size_t</span>, Peer_socket::receive&lt;Mutable_buffer_sequence&gt;, bind_ns::cref(target), _1);</div>
-<div class="line"><a id="l02558" name="l02558"></a><span class="lineno"> 2558</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
-<div class="line"><a id="l02559" name="l02559"></a><span class="lineno"> 2559</span> </div>
-<div class="line"><a id="l02560" name="l02560"></a><span class="lineno"> 2560</span>  <span class="comment">// We are in user thread U != W.</span></div>
-<div class="line"><a id="l02561" name="l02561"></a><span class="lineno"> 2561</span> </div>
-<div class="line"><a id="l02562" name="l02562"></a><span class="lineno"> 2562</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Lock_guard</a> lock(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">m_mutex</a>);  <span class="comment">// Lock m_node/m_state; also it&#39;s a pre-condition for Node::receive().</span></div>
-<div class="line"><a id="l02563" name="l02563"></a><span class="lineno"> 2563</span> </div>
-<div class="line"><a id="l02564" name="l02564"></a><span class="lineno"> 2564</span>  <span class="comment">/* Forward the rest of the logic to Node.</span></div>
-<div class="line"><a id="l02565" name="l02565"></a><span class="lineno"> 2565</span><span class="comment">   * Now, what I really want to do here is simply:</span></div>
-<div class="line"><a id="l02566" name="l02566"></a><span class="lineno"> 2566</span><span class="comment">   *     m_node-&gt;receive(this, target), err_code);</span></div>
-<div class="line"><a id="l02567" name="l02567"></a><span class="lineno"> 2567</span><span class="comment">   * I cannot, however, due to &lt;see same situation explained in Peer_socket::send()&gt;.</span></div>
-<div class="line"><a id="l02568" name="l02568"></a><span class="lineno"> 2568</span><span class="comment">   * Therefore I do the following (&lt;see Peer_socket::send() for more comments&gt;). */</span></div>
-<div class="line"><a id="l02569" name="l02569"></a><span class="lineno"> 2569</span> </div>
-<div class="line"><a id="l02570" name="l02570"></a><span class="lineno"> 2570</span>  <span class="keyword">const</span> <span class="keyword">auto</span> rcv_buf_consume_func = [<span class="keyword">this</span>, &amp;target]()</div>
-<div class="line"><a id="l02571" name="l02571"></a><span class="lineno"> 2571</span>  {</div>
-<div class="line"><a id="l02572" name="l02572"></a><span class="lineno"> 2572</span>    <span class="comment">// Ensure that if there are data in Receive buffer, we will return at least 1 block as</span></div>
-<div class="line"><a id="l02573" name="l02573"></a><span class="lineno"> 2573</span>    <span class="comment">// advertised.  @todo: I don&#39;t understand this comment now.  What does it mean?  Explain.</span></div>
-<div class="line"><a id="l02574" name="l02574"></a><span class="lineno"> 2574</span>    <span class="keywordflow">return</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3">m_rcv_buf</a>.<a class="code hl_function" href="classflow_1_1net__flow_1_1Socket__buffer.html#af60133c1d6825246b54f10f26810cd88">consume_bufs_copy</a>(target);</div>
-<div class="line"><a id="l02575" name="l02575"></a><span class="lineno"> 2575</span>  };</div>
-<div class="line"><a id="l02576" name="l02576"></a><span class="lineno"> 2576</span>  <span class="comment">// ^-- Important to capture `&amp;target`, not `target`; else `target` (albeit no actual buffers) will be copied!</span></div>
-<div class="line"><a id="l02577" name="l02577"></a><span class="lineno"> 2577</span> </div>
-<div class="line"><a id="l02578" name="l02578"></a><span class="lineno"> 2578</span>  <span class="comment">/* Let this untemplated function, in .cpp, deal with Node (since .cpp knows what *m_node really is).</span></div>
-<div class="line"><a id="l02579" name="l02579"></a><span class="lineno"> 2579</span><span class="comment">   * Note: whatever contraption lambda generated above will be converted to a Function&lt;...&gt; with ... being</span></div>
-<div class="line"><a id="l02580" name="l02580"></a><span class="lineno"> 2580</span><span class="comment">   * an appropriate signature that node_receive() expects, seen in the above explanatory comment. */</span></div>
-<div class="line"><a id="l02581" name="l02581"></a><span class="lineno"> 2581</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#af3ac1b0b3c9b1c3a5ec246148595c657">node_receive</a>(rcv_buf_consume_func, err_code);</div>
-<div class="line"><a id="l02582" name="l02582"></a><span class="lineno"> 2582</span>}</div>
-<div class="line"><a id="l02583" name="l02583"></a><span class="lineno"> 2583</span> </div>
-<div class="line"><a id="l02584" name="l02584"></a><span class="lineno"> 2584</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
-<div class="line"><a id="l02585" name="l02585"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#af5143886b33b4f16e4fbfbe3a4e91e44"> 2585</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">Peer_socket::sync_receive</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l02586" name="l02586"></a><span class="lineno"> 2586</span>{</div>
-<div class="line"><a id="l02587" name="l02587"></a><span class="lineno"> 2587</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#ad29f61b9885b10ddc3846cdae0560518">sync_receive_impl</a>(target, <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>(), err_code); <span class="comment">// sync_receive() with infinite timeout.</span></div>
-<div class="line"><a id="l02588" name="l02588"></a><span class="lineno"> 2588</span>}</div>
-<div class="line"><a id="l02589" name="l02589"></a><span class="lineno"> 2589</span> </div>
-<div class="line"><a id="l02590" name="l02590"></a><span class="lineno"> 2590</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period, <span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
-<div class="line"><a id="l02591" name="l02591"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b"> 2591</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">Peer_socket::sync_receive</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target,</div>
-<div class="line"><a id="l02592" name="l02592"></a><span class="lineno"> 2592</span>                                 <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l02593" name="l02593"></a><span class="lineno"> 2593</span>{</div>
-<div class="line"><a id="l02594" name="l02594"></a><span class="lineno"> 2594</span>  assert(max_wait.count() &gt; 0);</div>
-<div class="line"><a id="l02595" name="l02595"></a><span class="lineno"> 2595</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#ad29f61b9885b10ddc3846cdae0560518">sync_receive_impl</a>(target,</div>
-<div class="line"><a id="l02596" name="l02596"></a><span class="lineno"> 2596</span>                           <a class="code hl_function" href="namespaceflow_1_1util.html#a5488415feb5570a6551892a7bdfeeec4">util::chrono_duration_from_now_to_fine_time_pt</a>(max_wait),</div>
-<div class="line"><a id="l02597" name="l02597"></a><span class="lineno"> 2597</span>                           err_code);</div>
-<div class="line"><a id="l02598" name="l02598"></a><span class="lineno"> 2598</span>}</div>
-<div class="line"><a id="l02599" name="l02599"></a><span class="lineno"> 2599</span> </div>
-<div class="line"><a id="l02600" name="l02600"></a><span class="lineno"> 2600</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period&gt;</div>
-<div class="line"><a id="l02601" name="l02601"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a45d796625339aa1aae09326091509d18"> 2601</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">Peer_socket::sync_receive</a>(<span class="keyword">const</span> boost::asio::null_buffers&amp;,</div>
-<div class="line"><a id="l02602" name="l02602"></a><span class="lineno"> 2602</span>                               <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait,</div>
-<div class="line"><a id="l02603" name="l02603"></a><span class="lineno"> 2603</span>                               <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l02604" name="l02604"></a><span class="lineno"> 2604</span>{</div>
-<div class="line"><a id="l02605" name="l02605"></a><span class="lineno"> 2605</span>  assert(max_wait.count() &gt; 0);</div>
-<div class="line"><a id="l02606" name="l02606"></a><span class="lineno"> 2606</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a1a2eccfa314a397c12259f414ef6798c">sync_receive_reactor_pattern_impl</a>(<a class="code hl_function" href="namespaceflow_1_1util.html#a5488415feb5570a6551892a7bdfeeec4">util::chrono_duration_from_now_to_fine_time_pt</a>(max_wait), err_code);</div>
-<div class="line"><a id="l02607" name="l02607"></a><span class="lineno"> 2607</span>}</div>
-<div class="line"><a id="l02608" name="l02608"></a><span class="lineno"> 2608</span> </div>
-<div class="line"><a id="l02609" name="l02609"></a><span class="lineno"> 2609</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
-<div class="line"><a id="l02610" name="l02610"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad29f61b9885b10ddc3846cdae0560518"> 2610</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#ad29f61b9885b10ddc3846cdae0560518">Peer_socket::sync_receive_impl</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target,</div>
-<div class="line"><a id="l02611" name="l02611"></a><span class="lineno"> 2611</span>                                      <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
-<div class="line"><a id="l02612" name="l02612"></a><span class="lineno"> 2612</span>{</div>
-<div class="line"><a id="l02613" name="l02613"></a><span class="lineno"> 2613</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
-<div class="line"><a id="l02614" name="l02614"></a><span class="lineno"> 2614</span>  <span class="keyword">using </span>bind_ns::bind;</div>
-<div class="line"><a id="l02615" name="l02615"></a><span class="lineno"> 2615</span> </div>
-<div class="line"><a id="l02616" name="l02616"></a><span class="lineno"> 2616</span>  <a class="code hl_define" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>(<span class="keywordtype">size_t</span>, Peer_socket::sync_receive_impl&lt;Mutable_buffer_sequence&gt;,</div>
-<div class="line"><a id="l02617" name="l02617"></a><span class="lineno"> 2617</span>                                     bind_ns::cref(target), bind_ns::cref(wait_until), _1);</div>
-<div class="line"><a id="l02618" name="l02618"></a><span class="lineno"> 2618</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
-<div class="line"><a id="l02619" name="l02619"></a><span class="lineno"> 2619</span> </div>
-<div class="line"><a id="l02620" name="l02620"></a><span class="lineno"> 2620</span>  <span class="comment">// We are in user thread U != W.</span></div>
-<div class="line"><a id="l02621" name="l02621"></a><span class="lineno"> 2621</span> </div>
-<div class="line"><a id="l02622" name="l02622"></a><span class="lineno"> 2622</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Lock_guard</a> lock(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">m_mutex</a>); <span class="comment">// Lock m_node; also it&#39;s a pre-condition for Node::send().</span></div>
-<div class="line"><a id="l02623" name="l02623"></a><span class="lineno"> 2623</span> </div>
-<div class="line"><a id="l02624" name="l02624"></a><span class="lineno"> 2624</span>  <span class="comment">/* Forward the rest of the logic to Node.</span></div>
-<div class="line"><a id="l02625" name="l02625"></a><span class="lineno"> 2625</span><span class="comment">   * Now, what I really want to do here is simply:</span></div>
-<div class="line"><a id="l02626" name="l02626"></a><span class="lineno"> 2626</span><span class="comment">   *     m_node-&gt;sync_receive(...args...);</span></div>
-<div class="line"><a id="l02627" name="l02627"></a><span class="lineno"> 2627</span><span class="comment">   * I cannot, however, due to &lt;see same situation explained in Peer_socket::send()&gt;.</span></div>
-<div class="line"><a id="l02628" name="l02628"></a><span class="lineno"> 2628</span><span class="comment">   * Therefore I do the following (&lt;see Peer_socket::send() for more comments&gt;). */</span></div>
-<div class="line"><a id="l02629" name="l02629"></a><span class="lineno"> 2629</span> </div>
-<div class="line"><a id="l02630" name="l02630"></a><span class="lineno"> 2630</span>  <span class="keyword">const</span> <span class="keyword">auto</span> rcv_buf_consume_func = [<span class="keyword">this</span>, &amp;target]()</div>
-<div class="line"><a id="l02631" name="l02631"></a><span class="lineno"> 2631</span>  {</div>
-<div class="line"><a id="l02632" name="l02632"></a><span class="lineno"> 2632</span>    <span class="keywordflow">return</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3">m_rcv_buf</a>.<a class="code hl_function" href="classflow_1_1net__flow_1_1Socket__buffer.html#af60133c1d6825246b54f10f26810cd88">consume_bufs_copy</a>(target);</div>
-<div class="line"><a id="l02633" name="l02633"></a><span class="lineno"> 2633</span>  };</div>
-<div class="line"><a id="l02634" name="l02634"></a><span class="lineno"> 2634</span>  <span class="comment">// ^-- Important to capture `&amp;target`, not `target`; else `target` (albeit no actual buffers) will be copied!</span></div>
-<div class="line"><a id="l02635" name="l02635"></a><span class="lineno"> 2635</span> </div>
-<div class="line"><a id="l02636" name="l02636"></a><span class="lineno"> 2636</span>  lock.release(); <span class="comment">// Let go of the mutex (mutex is still LOCKED).</span></div>
-<div class="line"><a id="l02637" name="l02637"></a><span class="lineno"> 2637</span>  <span class="comment">/* Let this untemplated function, in .cpp, deal with Node (since .cpp knows what *m_node really is).</span></div>
-<div class="line"><a id="l02638" name="l02638"></a><span class="lineno"> 2638</span><span class="comment">   * Note: whatever contraption lambda generated above will be converted to a Function&lt;...&gt; with ... being</span></div>
-<div class="line"><a id="l02639" name="l02639"></a><span class="lineno"> 2639</span><span class="comment">   * an appropriate signature that node_sync_receive() expects, seen in the above explanatory comment. */</span></div>
-<div class="line"><a id="l02640" name="l02640"></a><span class="lineno"> 2640</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a8abde92d5189bf2a058fe8741789f814">node_sync_receive</a>(rcv_buf_consume_func, wait_until, err_code);</div>
-<div class="line"><a id="l02641" name="l02641"></a><span class="lineno"> 2641</span>} <span class="comment">// Peer_socket::sync_receive()</span></div>
-<div class="line"><a id="l02642" name="l02642"></a><span class="lineno"> 2642</span> </div>
-<div class="line"><a id="l02643" name="l02643"></a><span class="lineno"> 2643</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Opt_type&gt;</div>
-<div class="line"><a id="l02644" name="l02644"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#accf6d724ed1f145716ae3d4567f582f3"> 2644</a></span>Opt_type <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#accf6d724ed1f145716ae3d4567f582f3">Peer_socket::opt</a>(<span class="keyword">const</span> Opt_type&amp; opt_val_ref)<span class="keyword"> const</span></div>
-<div class="line"><a id="l02645" name="l02645"></a><span class="lineno"> 2645</span><span class="keyword"></span>{</div>
-<div class="line"><a id="l02646" name="l02646"></a><span class="lineno"> 2646</span>  <span class="comment">// Similar to Node::opt().</span></div>
-<div class="line"><a id="l02647" name="l02647"></a><span class="lineno"> 2647</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">Options_lock</a> lock(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a">m_opts_mutex</a>);</div>
-<div class="line"><a id="l02648" name="l02648"></a><span class="lineno"> 2648</span>  <span class="keywordflow">return</span> opt_val_ref;</div>
-<div class="line"><a id="l02649" name="l02649"></a><span class="lineno"> 2649</span>}</div>
-<div class="line"><a id="l02650" name="l02650"></a><span class="lineno"> 2650</span> </div>
-<div class="line"><a id="l02651" name="l02651"></a><span class="lineno"> 2651</span>} <span class="comment">// namespace flow::net_flow</span></div>
-<div class="line"><a id="l02652" name="l02652"></a><span class="lineno"> 2652</span> </div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="line"><a id="l02557" name="l02557"></a><span class="lineno"> 2557</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Lock_guard</a> lock(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">m_mutex</a>);  <span class="comment">// Lock m_node/m_state; also it&#39;s a pre-condition for Node::receive().</span></div>
+<div class="line"><a id="l02558" name="l02558"></a><span class="lineno"> 2558</span> </div>
+<div class="line"><a id="l02559" name="l02559"></a><span class="lineno"> 2559</span>  <span class="comment">/* Forward the rest of the logic to Node.</span></div>
+<div class="line"><a id="l02560" name="l02560"></a><span class="lineno"> 2560</span><span class="comment">   * Now, what I really want to do here is simply:</span></div>
+<div class="line"><a id="l02561" name="l02561"></a><span class="lineno"> 2561</span><span class="comment">   *     m_node-&gt;receive(this, target), err_code);</span></div>
+<div class="line"><a id="l02562" name="l02562"></a><span class="lineno"> 2562</span><span class="comment">   * I cannot, however, due to &lt;see same situation explained in Peer_socket::send()&gt;.</span></div>
+<div class="line"><a id="l02563" name="l02563"></a><span class="lineno"> 2563</span><span class="comment">   * Therefore I do the following (&lt;see Peer_socket::send() for more comments&gt;). */</span></div>
+<div class="line"><a id="l02564" name="l02564"></a><span class="lineno"> 2564</span> </div>
+<div class="line"><a id="l02565" name="l02565"></a><span class="lineno"> 2565</span>  <span class="keyword">const</span> <span class="keyword">auto</span> rcv_buf_consume_func = [<span class="keyword">this</span>, &amp;target]()</div>
+<div class="line"><a id="l02566" name="l02566"></a><span class="lineno"> 2566</span>  {</div>
+<div class="line"><a id="l02567" name="l02567"></a><span class="lineno"> 2567</span>    <span class="comment">// Ensure that if there are data in Receive buffer, we will return at least 1 block as</span></div>
+<div class="line"><a id="l02568" name="l02568"></a><span class="lineno"> 2568</span>    <span class="comment">// advertised.  @todo: I don&#39;t understand this comment now.  What does it mean?  Explain.</span></div>
+<div class="line"><a id="l02569" name="l02569"></a><span class="lineno"> 2569</span>    <span class="keywordflow">return</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3">m_rcv_buf</a>.<a class="code hl_function" href="classflow_1_1net__flow_1_1Socket__buffer.html#af60133c1d6825246b54f10f26810cd88">consume_bufs_copy</a>(target);</div>
+<div class="line"><a id="l02570" name="l02570"></a><span class="lineno"> 2570</span>  };</div>
+<div class="line"><a id="l02571" name="l02571"></a><span class="lineno"> 2571</span>  <span class="comment">// ^-- Important to capture `&amp;target`, not `target`; else `target` (albeit no actual buffers) will be copied!</span></div>
+<div class="line"><a id="l02572" name="l02572"></a><span class="lineno"> 2572</span> </div>
+<div class="line"><a id="l02573" name="l02573"></a><span class="lineno"> 2573</span>  <span class="comment">/* Let this untemplated function, in .cpp, deal with Node (since .cpp knows what *m_node really is).</span></div>
+<div class="line"><a id="l02574" name="l02574"></a><span class="lineno"> 2574</span><span class="comment">   * Note: whatever contraption lambda generated above will be converted to a Function&lt;...&gt; with ... being</span></div>
+<div class="line"><a id="l02575" name="l02575"></a><span class="lineno"> 2575</span><span class="comment">   * an appropriate signature that node_receive() expects, seen in the above explanatory comment. */</span></div>
+<div class="line"><a id="l02576" name="l02576"></a><span class="lineno"> 2576</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#af3ac1b0b3c9b1c3a5ec246148595c657">node_receive</a>(rcv_buf_consume_func, err_code);</div>
+<div class="line"><a id="l02577" name="l02577"></a><span class="lineno"> 2577</span>}</div>
+<div class="line"><a id="l02578" name="l02578"></a><span class="lineno"> 2578</span> </div>
+<div class="line"><a id="l02579" name="l02579"></a><span class="lineno"> 2579</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
+<div class="line"><a id="l02580" name="l02580"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#af5143886b33b4f16e4fbfbe3a4e91e44"> 2580</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">Peer_socket::sync_receive</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l02581" name="l02581"></a><span class="lineno"> 2581</span>{</div>
+<div class="line"><a id="l02582" name="l02582"></a><span class="lineno"> 2582</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#ad29f61b9885b10ddc3846cdae0560518">sync_receive_impl</a>(target, <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>(), err_code); <span class="comment">// sync_receive() with infinite timeout.</span></div>
+<div class="line"><a id="l02583" name="l02583"></a><span class="lineno"> 2583</span>}</div>
+<div class="line"><a id="l02584" name="l02584"></a><span class="lineno"> 2584</span> </div>
+<div class="line"><a id="l02585" name="l02585"></a><span class="lineno"> 2585</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period, <span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
+<div class="line"><a id="l02586" name="l02586"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b"> 2586</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">Peer_socket::sync_receive</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target,</div>
+<div class="line"><a id="l02587" name="l02587"></a><span class="lineno"> 2587</span>                                 <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l02588" name="l02588"></a><span class="lineno"> 2588</span>{</div>
+<div class="line"><a id="l02589" name="l02589"></a><span class="lineno"> 2589</span>  assert(max_wait.count() &gt; 0);</div>
+<div class="line"><a id="l02590" name="l02590"></a><span class="lineno"> 2590</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#ad29f61b9885b10ddc3846cdae0560518">sync_receive_impl</a>(target,</div>
+<div class="line"><a id="l02591" name="l02591"></a><span class="lineno"> 2591</span>                           <a class="code hl_function" href="namespaceflow_1_1util.html#a5488415feb5570a6551892a7bdfeeec4">util::chrono_duration_from_now_to_fine_time_pt</a>(max_wait),</div>
+<div class="line"><a id="l02592" name="l02592"></a><span class="lineno"> 2592</span>                           err_code);</div>
+<div class="line"><a id="l02593" name="l02593"></a><span class="lineno"> 2593</span>}</div>
+<div class="line"><a id="l02594" name="l02594"></a><span class="lineno"> 2594</span> </div>
+<div class="line"><a id="l02595" name="l02595"></a><span class="lineno"> 2595</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Rep, <span class="keyword">typename</span> Period&gt;</div>
+<div class="line"><a id="l02596" name="l02596"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#a45d796625339aa1aae09326091509d18"> 2596</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">Peer_socket::sync_receive</a>(<span class="keyword">const</span> boost::asio::null_buffers&amp;,</div>
+<div class="line"><a id="l02597" name="l02597"></a><span class="lineno"> 2597</span>                               <span class="keyword">const</span> boost::chrono::duration&lt;Rep, Period&gt;&amp; max_wait,</div>
+<div class="line"><a id="l02598" name="l02598"></a><span class="lineno"> 2598</span>                               <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l02599" name="l02599"></a><span class="lineno"> 2599</span>{</div>
+<div class="line"><a id="l02600" name="l02600"></a><span class="lineno"> 2600</span>  assert(max_wait.count() &gt; 0);</div>
+<div class="line"><a id="l02601" name="l02601"></a><span class="lineno"> 2601</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a1a2eccfa314a397c12259f414ef6798c">sync_receive_reactor_pattern_impl</a>(<a class="code hl_function" href="namespaceflow_1_1util.html#a5488415feb5570a6551892a7bdfeeec4">util::chrono_duration_from_now_to_fine_time_pt</a>(max_wait), err_code);</div>
+<div class="line"><a id="l02602" name="l02602"></a><span class="lineno"> 2602</span>}</div>
+<div class="line"><a id="l02603" name="l02603"></a><span class="lineno"> 2603</span> </div>
+<div class="line"><a id="l02604" name="l02604"></a><span class="lineno"> 2604</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Mutable_buffer_sequence&gt;</div>
+<div class="line"><a id="l02605" name="l02605"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#ad29f61b9885b10ddc3846cdae0560518"> 2605</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#ad29f61b9885b10ddc3846cdae0560518">Peer_socket::sync_receive_impl</a>(<span class="keyword">const</span> Mutable_buffer_sequence&amp; target,</div>
+<div class="line"><a id="l02606" name="l02606"></a><span class="lineno"> 2606</span>                                      <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">Fine_time_pt</a>&amp; wait_until, <a class="code hl_typedef" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">Error_code</a>* err_code)</div>
+<div class="line"><a id="l02607" name="l02607"></a><span class="lineno"> 2607</span>{</div>
+<div class="line"><a id="l02608" name="l02608"></a><span class="lineno"> 2608</span>  <span class="keyword">namespace </span>bind_ns = util::bind_ns;</div>
+<div class="line"><a id="l02609" name="l02609"></a><span class="lineno"> 2609</span>  <span class="keyword">using </span>bind_ns::bind;</div>
+<div class="line"><a id="l02610" name="l02610"></a><span class="lineno"> 2610</span> </div>
+<div class="line"><a id="l02611" name="l02611"></a><span class="lineno"> 2611</span>  <a class="code hl_define" href="error_2error_8hpp.html#a224db72c60a916b968e65706641bd279">FLOW_ERROR_EXEC_AND_THROW_ON_ERROR</a>(<span class="keywordtype">size_t</span>, Peer_socket::sync_receive_impl&lt;Mutable_buffer_sequence&gt;,</div>
+<div class="line"><a id="l02612" name="l02612"></a><span class="lineno"> 2612</span>                                     bind_ns::cref(target), bind_ns::cref(wait_until), _1);</div>
+<div class="line"><a id="l02613" name="l02613"></a><span class="lineno"> 2613</span>  <span class="comment">// ^-- Call ourselves and return if err_code is null.  If got to present line, err_code is not null.</span></div>
+<div class="line"><a id="l02614" name="l02614"></a><span class="lineno"> 2614</span> </div>
+<div class="line"><a id="l02615" name="l02615"></a><span class="lineno"> 2615</span>  <span class="comment">// We are in user thread U != W.</span></div>
+<div class="line"><a id="l02616" name="l02616"></a><span class="lineno"> 2616</span> </div>
+<div class="line"><a id="l02617" name="l02617"></a><span class="lineno"> 2617</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">Lock_guard</a> lock(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">m_mutex</a>); <span class="comment">// Lock m_node; also it&#39;s a pre-condition for Node::send().</span></div>
+<div class="line"><a id="l02618" name="l02618"></a><span class="lineno"> 2618</span> </div>
+<div class="line"><a id="l02619" name="l02619"></a><span class="lineno"> 2619</span>  <span class="comment">/* Forward the rest of the logic to Node.</span></div>
+<div class="line"><a id="l02620" name="l02620"></a><span class="lineno"> 2620</span><span class="comment">   * Now, what I really want to do here is simply:</span></div>
+<div class="line"><a id="l02621" name="l02621"></a><span class="lineno"> 2621</span><span class="comment">   *     m_node-&gt;sync_receive(...args...);</span></div>
+<div class="line"><a id="l02622" name="l02622"></a><span class="lineno"> 2622</span><span class="comment">   * I cannot, however, due to &lt;see same situation explained in Peer_socket::send()&gt;.</span></div>
+<div class="line"><a id="l02623" name="l02623"></a><span class="lineno"> 2623</span><span class="comment">   * Therefore I do the following (&lt;see Peer_socket::send() for more comments&gt;). */</span></div>
+<div class="line"><a id="l02624" name="l02624"></a><span class="lineno"> 2624</span> </div>
+<div class="line"><a id="l02625" name="l02625"></a><span class="lineno"> 2625</span>  <span class="keyword">const</span> <span class="keyword">auto</span> rcv_buf_consume_func = [<span class="keyword">this</span>, &amp;target]()</div>
+<div class="line"><a id="l02626" name="l02626"></a><span class="lineno"> 2626</span>  {</div>
+<div class="line"><a id="l02627" name="l02627"></a><span class="lineno"> 2627</span>    <span class="keywordflow">return</span> <a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3">m_rcv_buf</a>.<a class="code hl_function" href="classflow_1_1net__flow_1_1Socket__buffer.html#af60133c1d6825246b54f10f26810cd88">consume_bufs_copy</a>(target);</div>
+<div class="line"><a id="l02628" name="l02628"></a><span class="lineno"> 2628</span>  };</div>
+<div class="line"><a id="l02629" name="l02629"></a><span class="lineno"> 2629</span>  <span class="comment">// ^-- Important to capture `&amp;target`, not `target`; else `target` (albeit no actual buffers) will be copied!</span></div>
+<div class="line"><a id="l02630" name="l02630"></a><span class="lineno"> 2630</span> </div>
+<div class="line"><a id="l02631" name="l02631"></a><span class="lineno"> 2631</span>  lock.release(); <span class="comment">// Let go of the mutex (mutex is still LOCKED).</span></div>
+<div class="line"><a id="l02632" name="l02632"></a><span class="lineno"> 2632</span>  <span class="comment">/* Let this untemplated function, in .cpp, deal with Node (since .cpp knows what *m_node really is).</span></div>
+<div class="line"><a id="l02633" name="l02633"></a><span class="lineno"> 2633</span><span class="comment">   * Note: whatever contraption lambda generated above will be converted to a Function&lt;...&gt; with ... being</span></div>
+<div class="line"><a id="l02634" name="l02634"></a><span class="lineno"> 2634</span><span class="comment">   * an appropriate signature that node_sync_receive() expects, seen in the above explanatory comment. */</span></div>
+<div class="line"><a id="l02635" name="l02635"></a><span class="lineno"> 2635</span>  <span class="keywordflow">return</span> <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#a8abde92d5189bf2a058fe8741789f814">node_sync_receive</a>(rcv_buf_consume_func, wait_until, err_code);</div>
+<div class="line"><a id="l02636" name="l02636"></a><span class="lineno"> 2636</span>} <span class="comment">// Peer_socket::sync_receive()</span></div>
+<div class="line"><a id="l02637" name="l02637"></a><span class="lineno"> 2637</span> </div>
+<div class="line"><a id="l02638" name="l02638"></a><span class="lineno"> 2638</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Opt_type&gt;</div>
+<div class="line"><a id="l02639" name="l02639"></a><span class="lineno"><a class="line" href="classflow_1_1net__flow_1_1Peer__socket.html#accf6d724ed1f145716ae3d4567f582f3"> 2639</a></span>Opt_type <a class="code hl_function" href="classflow_1_1net__flow_1_1Peer__socket.html#accf6d724ed1f145716ae3d4567f582f3">Peer_socket::opt</a>(<span class="keyword">const</span> Opt_type&amp; opt_val_ref)<span class="keyword"> const</span></div>
+<div class="line"><a id="l02640" name="l02640"></a><span class="lineno"> 2640</span><span class="keyword"></span>{</div>
+<div class="line"><a id="l02641" name="l02641"></a><span class="lineno"> 2641</span>  <span class="comment">// Similar to Node::opt().</span></div>
+<div class="line"><a id="l02642" name="l02642"></a><span class="lineno"> 2642</span>  <a class="code hl_typedef" href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">Options_lock</a> lock(<a class="code hl_variable" href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a">m_opts_mutex</a>);</div>
+<div class="line"><a id="l02643" name="l02643"></a><span class="lineno"> 2643</span>  <span class="keywordflow">return</span> opt_val_ref;</div>
+<div class="line"><a id="l02644" name="l02644"></a><span class="lineno"> 2644</span>}</div>
+<div class="line"><a id="l02645" name="l02645"></a><span class="lineno"> 2645</span> </div>
+<div class="line"><a id="l02646" name="l02646"></a><span class="lineno"> 2646</span>} <span class="comment">// namespace flow::net_flow</span></div>
+<div class="line"><a id="l02647" name="l02647"></a><span class="lineno"> 2647</span> </div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Log__context_html"><div class="ttname"><a href="classflow_1_1log_1_1Log__context.html">flow::log::Log_context</a></div><div class="ttdoc">Convenience class that simply stores a Logger and/or Component passed into a constructor; and returns...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01618">log.hpp:1619</a></div></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Logger_html"><div class="ttname"><a href="classflow_1_1log_1_1Logger.html">flow::log::Logger</a></div><div class="ttdoc">Interface that the user should implement, passing the implementing Logger into logging classes (Flow'...</div><div class="ttdef"><b>Definition:</b> <a href="log_8hpp_source.html#l01287">log.hpp:1291</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Congestion__control__classic__data_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Congestion__control__classic__data.html">flow::net_flow::Congestion_control_classic_data</a></div><div class="ttdoc">Utility class for use by Congestion_control_strategy implementations that implements congestion windo...</div><div class="ttdef"><b>Definition:</b> <a href="cong__ctl__util_8hpp_source.html#l00076">cong_ctl_util.hpp:79</a></div></div>
@@ -2732,113 +2727,113 @@
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html">flow::net_flow::Node</a></div><div class="ttdoc">An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l00933">node.hpp:937</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket__receive__stats__accumulator.html">flow::net_flow::Peer_socket_receive_stats_accumulator</a></div><div class="ttdoc">A class that keeps a Peer_socket_receive_stats data store, includes methods to conveniently accumulat...</div><div class="ttdef"><b>Definition:</b> <a href="socket__stats_8hpp_source.html#l00049">socket_stats.hpp:52</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket__send__stats__accumulator_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket__send__stats__accumulator.html">flow::net_flow::Peer_socket_send_stats_accumulator</a></div><div class="ttdoc">A class that keeps a Peer_socket_send_stats data store, includes methods to conveniently accumulate d...</div><div class="ttdef"><b>Definition:</b> <a href="socket__stats_8hpp_source.html#l00268">socket_stats.hpp:271</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00215">peer_socket.hpp:223</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a037459e6f1345cedf45e490d544c8567"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a037459e6f1345cedf45e490d544c8567">flow::net_flow::Peer_socket::m_snd_drop_timer</a></div><div class="ttdeci">Drop_timer_ptr m_snd_drop_timer</div><div class="ttdoc">The Drop Timer engine, which controls how In-flight (m_snd_flying_pkts_by_sent_when) packets are cons...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02051">peer_socket.hpp:2051</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a03ea7069aa4779abaf274989bd4c2fb6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a03ea7069aa4779abaf274989bd4c2fb6">flow::net_flow::Peer_socket::operator&lt;&lt;</a></div><div class="ttdeci">friend std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, Int_state state)</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06531">peer_socket.cpp:6531</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a05a765055fd54412c63e57e43697f1bc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a05a765055fd54412c63e57e43697f1bc">flow::net_flow::Peer_socket::m_state</a></div><div class="ttdeci">State m_state</div><div class="ttdoc">See state().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01192">peer_socket.hpp:1192</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a07d885e5c8ec85e7ef8718dc0468ffe9"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a07d885e5c8ec85e7ef8718dc0468ffe9">flow::net_flow::Peer_socket::m_snd_pending_rcv_wnd</a></div><div class="ttdeci">size_t m_snd_pending_rcv_wnd</div><div class="ttdoc">While Node::low_lvl_recv_and_handle() or async part of Node::async_wait_latency_then_handle_incoming(...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01616">peer_socket.hpp:1616</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html">flow::net_flow::Peer_socket</a></div><div class="ttdoc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00216">peer_socket.hpp:224</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a037459e6f1345cedf45e490d544c8567"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a037459e6f1345cedf45e490d544c8567">flow::net_flow::Peer_socket::m_snd_drop_timer</a></div><div class="ttdeci">Drop_timer_ptr m_snd_drop_timer</div><div class="ttdoc">The Drop Timer engine, which controls how In-flight (m_snd_flying_pkts_by_sent_when) packets are cons...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02052">peer_socket.hpp:2052</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a03ea7069aa4779abaf274989bd4c2fb6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a03ea7069aa4779abaf274989bd4c2fb6">flow::net_flow::Peer_socket::operator&lt;&lt;</a></div><div class="ttdeci">friend std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, Int_state state)</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06537">peer_socket.cpp:6537</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a05a765055fd54412c63e57e43697f1bc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a05a765055fd54412c63e57e43697f1bc">flow::net_flow::Peer_socket::m_state</a></div><div class="ttdeci">State m_state</div><div class="ttdoc">See state().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01193">peer_socket.hpp:1193</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a07d885e5c8ec85e7ef8718dc0468ffe9"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a07d885e5c8ec85e7ef8718dc0468ffe9">flow::net_flow::Peer_socket::m_snd_pending_rcv_wnd</a></div><div class="ttdeci">size_t m_snd_pending_rcv_wnd</div><div class="ttdoc">While Node::low_lvl_recv_and_handle() or async part of Node::async_wait_latency_then_handle_incoming(...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01617">peer_socket.hpp:1617</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a0c99637726b3c2b2ff1dbf14c6c92752"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a0c99637726b3c2b2ff1dbf14c6c92752">flow::net_flow::Peer_socket::get_connect_metadata</a></div><div class="ttdeci">size_t get_connect_metadata(const boost::asio::mutable_buffer &amp;buffer, Error_code *err_code=0) const</div><div class="ttdoc">Obtains the serialized connect metadata, as supplied by the user during the connection handshake.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00390">peer_socket.cpp:390</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a0d1eecb59c62912b5630359df774dc62"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a0d1eecb59c62912b5630359df774dc62">flow::net_flow::Peer_socket::m_init_rexmit_count</a></div><div class="ttdeci">unsigned int m_init_rexmit_count</div><div class="ttdoc">If currently using m_init_rexmit_scheduled_task, this is the number of times the timer has already fi...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02144">peer_socket.hpp:2144</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a0d1eecb59c62912b5630359df774dc62"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a0d1eecb59c62912b5630359df774dc62">flow::net_flow::Peer_socket::m_init_rexmit_count</a></div><div class="ttdeci">unsigned int m_init_rexmit_count</div><div class="ttdoc">If currently using m_init_rexmit_scheduled_task, this is the number of times the timer has already fi...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02145">peer_socket.hpp:2145</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a102b78eaac9c8add512238ec5f26fcfc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a102b78eaac9c8add512238ec5f26fcfc">flow::net_flow::Peer_socket::max_block_size_multiple</a></div><div class="ttdeci">size_t max_block_size_multiple(const size_t &amp;opt_val_ref, const unsigned int *inflate_pct_val_ptr=0) const</div><div class="ttdoc">Returns the smallest multiple of max_block_size() that is &gt;= the given option value,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00357">peer_socket.cpp:357</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a12611e0ac9e8b86b8304b855050a8c8c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a12611e0ac9e8b86b8304b855050a8c8c">flow::net_flow::Peer_socket::m_snd_remote_rcv_wnd</a></div><div class="ttdeci">size_t m_snd_remote_rcv_wnd</div><div class="ttdoc">The receive window: the maximum number of bytes the other side has advertised it would be willing to ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01994">peer_socket.hpp:1994</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a13c640ebd14a75df3894e7d885d16f5f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a13c640ebd14a75df3894e7d885d16f5f">flow::net_flow::Peer_socket::m_rcv_next_seq_num</a></div><div class="ttdeci">Sequence_number m_rcv_next_seq_num</div><div class="ttdoc">The maximal sequence number R from the remote side such that all data with sequence numbers strictly ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01401">peer_socket.hpp:1401</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1553bbefc3407cf84eaa8e256c6cffff"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1553bbefc3407cf84eaa8e256c6cffff">flow::net_flow::Peer_socket::m_rcv_syn_rcvd_data_cumulative_size</a></div><div class="ttdeci">size_t m_rcv_syn_rcvd_data_cumulative_size</div><div class="ttdoc">The running total count of bytes in the m_data fields of m_rcv_syn_rcvd_data_q.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01376">peer_socket.hpp:1376</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a12611e0ac9e8b86b8304b855050a8c8c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a12611e0ac9e8b86b8304b855050a8c8c">flow::net_flow::Peer_socket::m_snd_remote_rcv_wnd</a></div><div class="ttdeci">size_t m_snd_remote_rcv_wnd</div><div class="ttdoc">The receive window: the maximum number of bytes the other side has advertised it would be willing to ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01995">peer_socket.hpp:1995</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a13c640ebd14a75df3894e7d885d16f5f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a13c640ebd14a75df3894e7d885d16f5f">flow::net_flow::Peer_socket::m_rcv_next_seq_num</a></div><div class="ttdeci">Sequence_number m_rcv_next_seq_num</div><div class="ttdoc">The maximal sequence number R from the remote side such that all data with sequence numbers strictly ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01402">peer_socket.hpp:1402</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1553bbefc3407cf84eaa8e256c6cffff"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1553bbefc3407cf84eaa8e256c6cffff">flow::net_flow::Peer_socket::m_rcv_syn_rcvd_data_cumulative_size</a></div><div class="ttdeci">size_t m_rcv_syn_rcvd_data_cumulative_size</div><div class="ttdoc">The running total count of bytes in the m_data fields of m_rcv_syn_rcvd_data_q.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01377">peer_socket.hpp:1377</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a15ba1d4af6d4e3fcab9534a307c00595"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a15ba1d4af6d4e3fcab9534a307c00595">flow::net_flow::Peer_socket::sync_send_reactor_pattern_impl</a></div><div class="ttdeci">bool sync_send_reactor_pattern_impl(const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">Helper similar to sync_send_impl() but for the null_buffers versions of sync_send().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00112">peer_socket.cpp:112</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1869760d5cfc5c0d22665e5db88710e4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1869760d5cfc5c0d22665e5db88710e4">flow::net_flow::Peer_socket::Rcv_syn_rcvd_data_q</a></div><div class="ttdeci">std::vector&lt; boost::shared_ptr&lt; Data_packet &gt; &gt; Rcv_syn_rcvd_data_q</div><div class="ttdoc">Type used for m_rcv_syn_rcvd_data_q.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00981">peer_socket.hpp:981</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1958264af0c40f3c9c5769ddff4c9ade"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1958264af0c40f3c9c5769ddff4c9ade">flow::net_flow::Peer_socket::Sent_pkt_by_seq_num_map</a></div><div class="ttdeci">std::map&lt; Sequence_number, Sent_pkt_ordered_by_when_iter &gt; Sent_pkt_by_seq_num_map</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_seq_num type; see that data member.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00949">peer_socket.hpp:949</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1869760d5cfc5c0d22665e5db88710e4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1869760d5cfc5c0d22665e5db88710e4">flow::net_flow::Peer_socket::Rcv_syn_rcvd_data_q</a></div><div class="ttdeci">std::vector&lt; boost::shared_ptr&lt; Data_packet &gt; &gt; Rcv_syn_rcvd_data_q</div><div class="ttdoc">Type used for m_rcv_syn_rcvd_data_q.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00982">peer_socket.hpp:982</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1958264af0c40f3c9c5769ddff4c9ade"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1958264af0c40f3c9c5769ddff4c9ade">flow::net_flow::Peer_socket::Sent_pkt_by_seq_num_map</a></div><div class="ttdeci">std::map&lt; Sequence_number, Sent_pkt_ordered_by_when_iter &gt; Sent_pkt_by_seq_num_map</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_seq_num type; see that data member.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00950">peer_socket.hpp:950</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1a2eccfa314a397c12259f414ef6798c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1a2eccfa314a397c12259f414ef6798c">flow::net_flow::Peer_socket::sync_receive_reactor_pattern_impl</a></div><div class="ttdeci">bool sync_receive_reactor_pattern_impl(const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">Helper similar to sync_receive_impl() but for the null_buffers versions of sync_receive().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00197">peer_socket.cpp:197</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1e1379f9a0269d6990f26bf1da045657"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1e1379f9a0269d6990f26bf1da045657">flow::net_flow::Peer_socket::Options_mutex</a></div><div class="ttdeci">util::Mutex_non_recursive Options_mutex</div><div class="ttdoc">Short-hand for high-performance, non-reentrant, exclusive mutex used to lock m_opts.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00885">peer_socket.hpp:885</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1ec79951579d595bb790be87189d6e6c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1ec79951579d595bb790be87189d6e6c">flow::net_flow::Peer_socket::m_snd_last_order_num</a></div><div class="ttdeci">order_num_t m_snd_last_order_num</div><div class="ttdoc">For the Sent_packet representing the next packet to be sent, this is the value to assign to m_sent_wh...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01929">peer_socket.hpp:1929</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1f8bebf649551131e6ed6e75c6f98d54"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1f8bebf649551131e6ed6e75c6f98d54">flow::net_flow::Peer_socket::m_snd_next_seq_num</a></div><div class="ttdeci">Sequence_number m_snd_next_seq_num</div><div class="ttdoc">The sequence number for the start of the data in the next new DATA packet to be sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01702">peer_socket.hpp:1702</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a218ec098984b754b43940001f59ab787"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a218ec098984b754b43940001f59ab787">flow::net_flow::Peer_socket::m_remote_endpoint</a></div><div class="ttdeci">Remote_endpoint m_remote_endpoint</div><div class="ttdoc">See remote_endpoint(). Should be set before user gets access to *this and not changed afterwards.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01344">peer_socket.hpp:1344</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a256b77e546fff9394ef8d509e2ae771b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">flow::net_flow::Peer_socket::sync_receive</a></div><div class="ttdeci">size_t sync_receive(const Mutable_buffer_sequence &amp;target, const boost::chrono::duration&lt; Rep, Period &gt; &amp;max_wait, Error_code *err_code=0)</div><div class="ttdoc">Blocking (synchronous) version of receive().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02591">peer_socket.hpp:2591</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a27ce5b19ab4abcf61aa07153c46b2be3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a27ce5b19ab4abcf61aa07153c46b2be3">flow::net_flow::Peer_socket::m_round_trip_time_variance</a></div><div class="ttdeci">Fine_duration m_round_trip_time_variance</div><div class="ttdoc">RTTVAR used for m_snd_smoothed_round_trip_time calculation.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02041">peer_socket.hpp:2041</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a288ccfc742d6982c4059d82500397874"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a288ccfc742d6982c4059d82500397874">flow::net_flow::Peer_socket::m_active_connect</a></div><div class="ttdeci">bool m_active_connect</div><div class="ttdoc">true if we connect() to server; false if we are to be/are accept()ed. Should be set once and not modi...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01184">peer_socket.hpp:1184</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a2c5de5df50268168cbbad82eaf90fa93"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a2c5de5df50268168cbbad82eaf90fa93">flow::net_flow::Peer_socket::m_int_state</a></div><div class="ttdeci">Int_state m_int_state</div><div class="ttdoc">Current internal state of the socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01356">peer_socket.hpp:1356</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a2d8aded3761028967fd3abb464e64936"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a2d8aded3761028967fd3abb464e64936">flow::net_flow::Peer_socket::m_snd_drop_timeout</a></div><div class="ttdeci">Fine_duration m_snd_drop_timeout</div><div class="ttdoc">The Drop Timeout: Time period between the next time m_snd_drop_timer schedules a Drop Timer and that ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02061">peer_socket.hpp:2061</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a2db7d11ece920d4adcacd00eaa2253fd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a2db7d11ece920d4adcacd00eaa2253fd">flow::net_flow::Peer_socket::m_snd_flying_pkts_by_seq_num</a></div><div class="ttdeci">Sent_pkt_by_seq_num_map m_snd_flying_pkts_by_seq_num</div><div class="ttdoc">The collection of all In-flight packets (including those queued up to send in pacing module),...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01879">peer_socket.hpp:1879</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a2dd08c5fed4d179e4fde3a632c084751"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a2dd08c5fed4d179e4fde3a632c084751">flow::net_flow::Peer_socket::m_snd_bandwidth_estimator</a></div><div class="ttdeci">boost::movelib::unique_ptr&lt; Send_bandwidth_estimator &gt; m_snd_bandwidth_estimator</div><div class="ttdoc">The outgoing available bandwidth estimator for this connection on this side.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02022">peer_socket.hpp:2022</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a322dddf34a06bb199dab02c993bad686"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a322dddf34a06bb199dab02c993bad686">flow::net_flow::Peer_socket::m_serialized_metadata</a></div><div class="ttdeci">util::Blob m_serialized_metadata</div><div class="ttdoc">If !m_active_connect, this contains the serialized metadata that the user supplied on the other side ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01328">peer_socket.hpp:1328</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a33a90b123612cc2e6a119cfa95ba4f6d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a33a90b123612cc2e6a119cfa95ba4f6d">flow::net_flow::Peer_socket::m_security_token</a></div><div class="ttdeci">security_token_t m_security_token</div><div class="ttdoc">Random security token used during SYN_ACK-SYN_ACK_ACK.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02117">peer_socket.hpp:2117</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1e1379f9a0269d6990f26bf1da045657"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1e1379f9a0269d6990f26bf1da045657">flow::net_flow::Peer_socket::Options_mutex</a></div><div class="ttdeci">util::Mutex_non_recursive Options_mutex</div><div class="ttdoc">Short-hand for high-performance, non-reentrant, exclusive mutex used to lock m_opts.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00886">peer_socket.hpp:886</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1ec79951579d595bb790be87189d6e6c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1ec79951579d595bb790be87189d6e6c">flow::net_flow::Peer_socket::m_snd_last_order_num</a></div><div class="ttdeci">order_num_t m_snd_last_order_num</div><div class="ttdoc">For the Sent_packet representing the next packet to be sent, this is the value to assign to m_sent_wh...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01930">peer_socket.hpp:1930</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a1f8bebf649551131e6ed6e75c6f98d54"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a1f8bebf649551131e6ed6e75c6f98d54">flow::net_flow::Peer_socket::m_snd_next_seq_num</a></div><div class="ttdeci">Sequence_number m_snd_next_seq_num</div><div class="ttdoc">The sequence number for the start of the data in the next new DATA packet to be sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01703">peer_socket.hpp:1703</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a218ec098984b754b43940001f59ab787"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a218ec098984b754b43940001f59ab787">flow::net_flow::Peer_socket::m_remote_endpoint</a></div><div class="ttdeci">Remote_endpoint m_remote_endpoint</div><div class="ttdoc">See remote_endpoint(). Should be set before user gets access to *this and not changed afterwards.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01345">peer_socket.hpp:1345</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a256b77e546fff9394ef8d509e2ae771b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a256b77e546fff9394ef8d509e2ae771b">flow::net_flow::Peer_socket::sync_receive</a></div><div class="ttdeci">size_t sync_receive(const Mutable_buffer_sequence &amp;target, const boost::chrono::duration&lt; Rep, Period &gt; &amp;max_wait, Error_code *err_code=0)</div><div class="ttdoc">Blocking (synchronous) version of receive().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02586">peer_socket.hpp:2586</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a27ce5b19ab4abcf61aa07153c46b2be3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a27ce5b19ab4abcf61aa07153c46b2be3">flow::net_flow::Peer_socket::m_round_trip_time_variance</a></div><div class="ttdeci">Fine_duration m_round_trip_time_variance</div><div class="ttdoc">RTTVAR used for m_snd_smoothed_round_trip_time calculation.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02042">peer_socket.hpp:2042</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a288ccfc742d6982c4059d82500397874"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a288ccfc742d6982c4059d82500397874">flow::net_flow::Peer_socket::m_active_connect</a></div><div class="ttdeci">bool m_active_connect</div><div class="ttdoc">true if we connect() to server; false if we are to be/are accept()ed. Should be set once and not modi...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01185">peer_socket.hpp:1185</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a2c5de5df50268168cbbad82eaf90fa93"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a2c5de5df50268168cbbad82eaf90fa93">flow::net_flow::Peer_socket::m_int_state</a></div><div class="ttdeci">Int_state m_int_state</div><div class="ttdoc">Current internal state of the socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01357">peer_socket.hpp:1357</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a2d8aded3761028967fd3abb464e64936"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a2d8aded3761028967fd3abb464e64936">flow::net_flow::Peer_socket::m_snd_drop_timeout</a></div><div class="ttdeci">Fine_duration m_snd_drop_timeout</div><div class="ttdoc">The Drop Timeout: Time period between the next time m_snd_drop_timer schedules a Drop Timer and that ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02062">peer_socket.hpp:2062</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a2db7d11ece920d4adcacd00eaa2253fd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a2db7d11ece920d4adcacd00eaa2253fd">flow::net_flow::Peer_socket::m_snd_flying_pkts_by_seq_num</a></div><div class="ttdeci">Sent_pkt_by_seq_num_map m_snd_flying_pkts_by_seq_num</div><div class="ttdoc">The collection of all In-flight packets (including those queued up to send in pacing module),...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01880">peer_socket.hpp:1880</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a2dd08c5fed4d179e4fde3a632c084751"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a2dd08c5fed4d179e4fde3a632c084751">flow::net_flow::Peer_socket::m_snd_bandwidth_estimator</a></div><div class="ttdeci">boost::movelib::unique_ptr&lt; Send_bandwidth_estimator &gt; m_snd_bandwidth_estimator</div><div class="ttdoc">The outgoing available bandwidth estimator for this connection on this side.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02023">peer_socket.hpp:2023</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a322dddf34a06bb199dab02c993bad686"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a322dddf34a06bb199dab02c993bad686">flow::net_flow::Peer_socket::m_serialized_metadata</a></div><div class="ttdeci">util::Blob m_serialized_metadata</div><div class="ttdoc">If !m_active_connect, this contains the serialized metadata that the user supplied on the other side ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01329">peer_socket.hpp:1329</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a33a90b123612cc2e6a119cfa95ba4f6d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a33a90b123612cc2e6a119cfa95ba4f6d">flow::net_flow::Peer_socket::m_security_token</a></div><div class="ttdeci">security_token_t m_security_token</div><div class="ttdoc">Random security token used during SYN_ACK-SYN_ACK_ACK.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02118">peer_socket.hpp:2118</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a34e2c7dfb5596269a6f86a716015f1a6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a34e2c7dfb5596269a6f86a716015f1a6">flow::net_flow::Peer_socket::node_sync_send</a></div><div class="ttdeci">size_t node_sync_send(const Function&lt; size_t(size_t max_data_size)&gt; &amp;snd_buf_feed_func_or_empty, const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">This is to sync_send() as node_send() is to send().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00149">peer_socket.cpp:149</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a35eb43f2b5d7dd46a941def4523f673c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a35eb43f2b5d7dd46a941def4523f673c">flow::net_flow::Peer_socket::m_snd_cong_ctl</a></div><div class="ttdeci">boost::movelib::unique_ptr&lt; Congestion_control_strategy &gt; m_snd_cong_ctl</div><div class="ttdoc">The congestion control strategy in use for this connection on this side.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01977">peer_socket.hpp:1977</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a36ab27af6886c7699f9965a5eb296cd6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a36ab27af6886c7699f9965a5eb296cd6">flow::net_flow::Peer_socket::m_node</a></div><div class="ttdeci">Node * m_node</div><div class="ttdoc">See node().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01217">peer_socket.hpp:1217</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a3f1a802024549a59978a53343b09a86d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a3f1a802024549a59978a53343b09a86d">flow::net_flow::Peer_socket::sync_send_impl</a></div><div class="ttdeci">size_t sync_send_impl(const Const_buffer_sequence &amp;data, const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">Same as sync_send() but uses a Fine_clock-based Fine_duration non-template type for implementation co...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02518">peer_socket.hpp:2518</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a48320d96118a37626f1852626965e6ed"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a48320d96118a37626f1852626965e6ed">flow::net_flow::Peer_socket::m_rcv_syn_rcvd_data_q</a></div><div class="ttdeci">Rcv_syn_rcvd_data_q m_rcv_syn_rcvd_data_q</div><div class="ttdoc">The queue of DATA packets received while in Int_state::S_SYN_RCVD state before the Syn_ack_ack_packet...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01369">peer_socket.hpp:1369</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a4fb8e8df98efa023e8bd4bd825475a18"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a4fb8e8df98efa023e8bd4bd825475a18">flow::net_flow::Peer_socket::m_disconnect_cause</a></div><div class="ttdeci">Error_code m_disconnect_cause</div><div class="ttdoc">The Error_code causing disconnection (if one has occurred or is occurring) on this socket; otherwise ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01312">peer_socket.hpp:1312</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a35eb43f2b5d7dd46a941def4523f673c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a35eb43f2b5d7dd46a941def4523f673c">flow::net_flow::Peer_socket::m_snd_cong_ctl</a></div><div class="ttdeci">boost::movelib::unique_ptr&lt; Congestion_control_strategy &gt; m_snd_cong_ctl</div><div class="ttdoc">The congestion control strategy in use for this connection on this side.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01978">peer_socket.hpp:1978</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a36ab27af6886c7699f9965a5eb296cd6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a36ab27af6886c7699f9965a5eb296cd6">flow::net_flow::Peer_socket::m_node</a></div><div class="ttdeci">Node * m_node</div><div class="ttdoc">See node().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01218">peer_socket.hpp:1218</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a3f1a802024549a59978a53343b09a86d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a3f1a802024549a59978a53343b09a86d">flow::net_flow::Peer_socket::sync_send_impl</a></div><div class="ttdeci">size_t sync_send_impl(const Const_buffer_sequence &amp;data, const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">Same as sync_send() but uses a Fine_clock-based Fine_duration non-template type for implementation co...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02513">peer_socket.hpp:2513</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a48320d96118a37626f1852626965e6ed"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a48320d96118a37626f1852626965e6ed">flow::net_flow::Peer_socket::m_rcv_syn_rcvd_data_q</a></div><div class="ttdeci">Rcv_syn_rcvd_data_q m_rcv_syn_rcvd_data_q</div><div class="ttdoc">The queue of DATA packets received while in Int_state::S_SYN_RCVD state before the Syn_ack_ack_packet...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01370">peer_socket.hpp:1370</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a4fb8e8df98efa023e8bd4bd825475a18"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a4fb8e8df98efa023e8bd4bd825475a18">flow::net_flow::Peer_socket::m_disconnect_cause</a></div><div class="ttdeci">Error_code m_disconnect_cause</div><div class="ttdoc">The Error_code causing disconnection (if one has occurred or is occurring) on this socket; otherwise ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01313">peer_socket.hpp:1313</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5003c554807f5b5b58989ad58be48d42"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5003c554807f5b5b58989ad58be48d42">flow::net_flow::Peer_socket::Peer_socket</a></div><div class="ttdeci">Peer_socket(log::Logger *logger_ptr, util::Task_engine *task_engine, const Peer_socket_options &amp;opts)</div><div class="ttdoc">Constructs object; initializes most values to well-defined (0, empty, etc.) but not necessarily meani...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00037">peer_socket.cpp:37</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5476d9206f997fc9119b2a80b078ee87"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5476d9206f997fc9119b2a80b078ee87">flow::net_flow::Peer_socket::m_rcv_wnd_recovery_start_time</a></div><div class="ttdeci">Fine_time_pt m_rcv_wnd_recovery_start_time</div><div class="ttdoc">Time point at which m_rcv_in_rcv_wnd_recovery was last set to true.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01645">peer_socket.hpp:1645</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a55b44104a2c305b9679434ba623a7357"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a55b44104a2c305b9679434ba623a7357">flow::net_flow::Peer_socket::m_snd_pacing_data</a></div><div class="ttdeci">Send_pacing_data m_snd_pacing_data</div><div class="ttdoc">The state of outgoing packet pacing for this socket; segregated into a simple struct to keep Peer_soc...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02070">peer_socket.hpp:2070</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5629d810d2c7252eaa2243e076dde83f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5629d810d2c7252eaa2243e076dde83f">flow::net_flow::Peer_socket::m_originating_serv</a></div><div class="ttdeci">Server_socket::Ptr m_originating_serv</div><div class="ttdoc">For sockets that come a Server_socket, this is the inverse of Server_socket::m_connecting_socks: it i...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01241">peer_socket.hpp:1241</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a59db68ed0c77a9f6e1a7aeeb3df2a6b9"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a59db68ed0c77a9f6e1a7aeeb3df2a6b9">flow::net_flow::Peer_socket::security_token_t</a></div><div class="ttdeci">uint64_t security_token_t</div><div class="ttdoc">Type used for m_security_token.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00902">peer_socket.hpp:902</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5dc05d1f5deb71e1259c5d5aad1fcf84"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5dc05d1f5deb71e1259c5d5aad1fcf84">flow::net_flow::Peer_socket::m_rcv_init_seq_num</a></div><div class="ttdeci">Sequence_number m_rcv_init_seq_num</div><div class="ttdoc">The Initial Sequence Number (ISN) contained in the original Syn_packet or Syn_ack_packet we received.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01386">peer_socket.hpp:1386</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5476d9206f997fc9119b2a80b078ee87"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5476d9206f997fc9119b2a80b078ee87">flow::net_flow::Peer_socket::m_rcv_wnd_recovery_start_time</a></div><div class="ttdeci">Fine_time_pt m_rcv_wnd_recovery_start_time</div><div class="ttdoc">Time point at which m_rcv_in_rcv_wnd_recovery was last set to true.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01646">peer_socket.hpp:1646</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a55b44104a2c305b9679434ba623a7357"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a55b44104a2c305b9679434ba623a7357">flow::net_flow::Peer_socket::m_snd_pacing_data</a></div><div class="ttdeci">Send_pacing_data m_snd_pacing_data</div><div class="ttdoc">The state of outgoing packet pacing for this socket; segregated into a simple struct to keep Peer_soc...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02071">peer_socket.hpp:2071</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5629d810d2c7252eaa2243e076dde83f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5629d810d2c7252eaa2243e076dde83f">flow::net_flow::Peer_socket::m_originating_serv</a></div><div class="ttdeci">Server_socket::Ptr m_originating_serv</div><div class="ttdoc">For sockets that come a Server_socket, this is the inverse of Server_socket::m_connecting_socks: it i...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01242">peer_socket.hpp:1242</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a59db68ed0c77a9f6e1a7aeeb3df2a6b9"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a59db68ed0c77a9f6e1a7aeeb3df2a6b9">flow::net_flow::Peer_socket::security_token_t</a></div><div class="ttdeci">uint64_t security_token_t</div><div class="ttdoc">Type used for m_security_token.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00903">peer_socket.hpp:903</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5dc05d1f5deb71e1259c5d5aad1fcf84"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5dc05d1f5deb71e1259c5d5aad1fcf84">flow::net_flow::Peer_socket::m_rcv_init_seq_num</a></div><div class="ttdeci">Sequence_number m_rcv_init_seq_num</div><div class="ttdoc">The Initial Sequence Number (ISN) contained in the original Syn_packet or Syn_ack_packet we received.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01387">peer_socket.hpp:1387</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5e423a9fd18a45cc7cc5fc34af29161e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5e423a9fd18a45cc7cc5fc34af29161e">flow::net_flow::Peer_socket::remote_endpoint</a></div><div class="ttdeci">const Remote_endpoint &amp; remote_endpoint() const</div><div class="ttdoc">Intended other side of the connection (regardless of success, failure, or current State).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00378">peer_socket.cpp:378</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5ea56c54a98289211fef4a672432a2ad"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad">flow::net_flow::Peer_socket::m_snd_flying_pkts_by_sent_when</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map m_snd_flying_pkts_by_sent_when</div><div class="ttdoc">The collection of all In-flight packets, indexed by sequence number and ordered from most to least re...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01805">peer_socket.hpp:1805</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6a9bb727c8982f24bcf978c10c2c7345"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">flow::net_flow::Peer_socket::State</a></div><div class="ttdeci">State</div><div class="ttdoc">State of a Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00228">peer_socket.hpp:229</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6f48d01d1269c9d4260d972baa40e548"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">flow::net_flow::Peer_socket::Open_sub_state</a></div><div class="ttdeci">Open_sub_state</div><div class="ttdoc">The sub-state of a Peer_socket when state is State::S_OPEN.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00237">peer_socket.hpp:238</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a70629642551f18e474b87c128d2d77e2"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">flow::net_flow::Peer_socket::sync_send</a></div><div class="ttdeci">size_t sync_send(const Const_buffer_sequence &amp;data, const boost::chrono::duration&lt; Rep, Period &gt; &amp;max_wait, Error_code *err_code=0)</div><div class="ttdoc">Blocking (synchronous) version of send().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02497">peer_socket.hpp:2497</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a5ea56c54a98289211fef4a672432a2ad"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a5ea56c54a98289211fef4a672432a2ad">flow::net_flow::Peer_socket::m_snd_flying_pkts_by_sent_when</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map m_snd_flying_pkts_by_sent_when</div><div class="ttdoc">The collection of all In-flight packets, indexed by sequence number and ordered from most to least re...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01806">peer_socket.hpp:1806</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6a9bb727c8982f24bcf978c10c2c7345"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345">flow::net_flow::Peer_socket::State</a></div><div class="ttdeci">State</div><div class="ttdoc">State of a Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00229">peer_socket.hpp:230</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6f48d01d1269c9d4260d972baa40e548"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548">flow::net_flow::Peer_socket::Open_sub_state</a></div><div class="ttdeci">Open_sub_state</div><div class="ttdoc">The sub-state of a Peer_socket when state is State::S_OPEN.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00238">peer_socket.hpp:239</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a70629642551f18e474b87c128d2d77e2"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a70629642551f18e474b87c128d2d77e2">flow::net_flow::Peer_socket::sync_send</a></div><div class="ttdeci">size_t sync_send(const Const_buffer_sequence &amp;data, const boost::chrono::duration&lt; Rep, Period &gt; &amp;max_wait, Error_code *err_code=0)</div><div class="ttdoc">Blocking (synchronous) version of send().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02492">peer_socket.hpp:2492</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a729af2cb3465b67b811d8e9438b5af5d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a729af2cb3465b67b811d8e9438b5af5d">flow::net_flow::Peer_socket::~Peer_socket</a></div><div class="ttdeci">~Peer_socket() override</div><div class="ttdoc">Boring virtual destructor. Note that deletion is to be handled exclusively via shared_ptr,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00077">peer_socket.cpp:77</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a74f6fd527766fdeb05a96c5c03729a00"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a74f6fd527766fdeb05a96c5c03729a00">flow::net_flow::Peer_socket::disconnect_cause</a></div><div class="ttdeci">Error_code disconnect_cause() const</div><div class="ttdoc">The error code that perviously caused state() to become State::S_CLOSED, or success code if state is ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00101">peer_socket.cpp:101</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a780f86759f861a3a84de8c5c768736b7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a780f86759f861a3a84de8c5c768736b7">flow::net_flow::Peer_socket::m_rcv_pending_acks_size_at_recv_handler_start</a></div><div class="ttdeci">size_t m_rcv_pending_acks_size_at_recv_handler_start</div><div class="ttdoc">Helper state, to be used while inside either Node::low_lvl_recv_and_handle() or async part of Node::a...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01580">peer_socket.hpp:1580</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a797a524b73e2626fcfefe1be64f4d481"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">flow::net_flow::Peer_socket::order_num_t</a></div><div class="ttdeci">Sequence_number::seq_num_t order_num_t</div><div class="ttdoc">Short-hand for order number type. 0 is reserved. Caution: Keep in sync with Drop_timer::packet_id_t.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00905">peer_socket.hpp:905</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a780f86759f861a3a84de8c5c768736b7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a780f86759f861a3a84de8c5c768736b7">flow::net_flow::Peer_socket::m_rcv_pending_acks_size_at_recv_handler_start</a></div><div class="ttdeci">size_t m_rcv_pending_acks_size_at_recv_handler_start</div><div class="ttdoc">Helper state, to be used while inside either Node::low_lvl_recv_and_handle() or async part of Node::a...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01581">peer_socket.hpp:1581</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a797a524b73e2626fcfefe1be64f4d481"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a797a524b73e2626fcfefe1be64f4d481">flow::net_flow::Peer_socket::order_num_t</a></div><div class="ttdeci">Sequence_number::seq_num_t order_num_t</div><div class="ttdoc">Short-hand for order number type. 0 is reserved. Caution: Keep in sync with Drop_timer::packet_id_t.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00906">peer_socket.hpp:906</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7af387476aa0bdc6b3906c153d824acb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7af387476aa0bdc6b3906c153d824acb">flow::net_flow::Peer_socket::local_port</a></div><div class="ttdeci">flow_port_t local_port() const</div><div class="ttdoc">The local Flow-protocol port chosen by the Node (if active or passive open) or user (if passive open)...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00384">peer_socket.cpp:384</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7b65c1b26e38a2ae614d9a12edfa57dd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7b65c1b26e38a2ae614d9a12edfa57dd">flow::net_flow::Peer_socket::m_local_port</a></div><div class="ttdeci">flow_port_t m_local_port</div><div class="ttdoc">See local_port(). Should be set before user gets access to *this and not changed afterwards.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01347">peer_socket.hpp:1347</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7d1f1d381749473f7a2471b8be20d6a8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7d1f1d381749473f7a2471b8be20d6a8">flow::net_flow::Peer_socket::m_rcv_stats</a></div><div class="ttdeci">Peer_socket_receive_stats_accumulator m_rcv_stats</div><div class="ttdoc">Stats regarding incoming traffic (and resulting outgoing ACKs) for this connection so far.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01677">peer_socket.hpp:1677</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7b65c1b26e38a2ae614d9a12edfa57dd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7b65c1b26e38a2ae614d9a12edfa57dd">flow::net_flow::Peer_socket::m_local_port</a></div><div class="ttdeci">flow_port_t m_local_port</div><div class="ttdoc">See local_port(). Should be set before user gets access to *this and not changed afterwards.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01348">peer_socket.hpp:1348</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7d1f1d381749473f7a2471b8be20d6a8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7d1f1d381749473f7a2471b8be20d6a8">flow::net_flow::Peer_socket::m_rcv_stats</a></div><div class="ttdeci">Peer_socket_receive_stats_accumulator m_rcv_stats</div><div class="ttdoc">Stats regarding incoming traffic (and resulting outgoing ACKs) for this connection so far.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01678">peer_socket.hpp:1678</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7d31cf18a3c075873de1c46c0176e41f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7d31cf18a3c075873de1c46c0176e41f">flow::net_flow::Peer_socket::set_options</a></div><div class="ttdeci">bool set_options(const Peer_socket_options &amp;opts, Error_code *err_code=0)</div><div class="ttdoc">Dynamically replaces the current options set (options()) with the given options set.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00297">peer_socket.cpp:297</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7fa76b609ef0aa5962d8de77338cf9ee"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7fa76b609ef0aa5962d8de77338cf9ee">flow::net_flow::Peer_socket::m_rcv_last_sent_rcv_wnd</a></div><div class="ttdeci">size_t m_rcv_last_sent_rcv_wnd</div><div class="ttdoc">The last rcv_wnd value sent to the other side (in an ACK).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01626">peer_socket.hpp:1626</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a8229396adfd306d15e8a05dac3fe8c29"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a8229396adfd306d15e8a05dac3fe8c29">flow::net_flow::Peer_socket::m_rcv_acked_packets</a></div><div class="ttdeci">std::vector&lt; Ack_packet::Individual_ack::Ptr &gt; m_rcv_acked_packets</div><div class="ttdoc">While Node::low_lvl_recv_and_handle() or async part of Node::async_wait_latency_then_handle_incoming(...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01604">peer_socket.hpp:1604</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a7fa76b609ef0aa5962d8de77338cf9ee"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a7fa76b609ef0aa5962d8de77338cf9ee">flow::net_flow::Peer_socket::m_rcv_last_sent_rcv_wnd</a></div><div class="ttdeci">size_t m_rcv_last_sent_rcv_wnd</div><div class="ttdoc">The last rcv_wnd value sent to the other side (in an ACK).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01627">peer_socket.hpp:1627</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a8229396adfd306d15e8a05dac3fe8c29"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a8229396adfd306d15e8a05dac3fe8c29">flow::net_flow::Peer_socket::m_rcv_acked_packets</a></div><div class="ttdeci">std::vector&lt; Ack_packet::Individual_ack::Ptr &gt; m_rcv_acked_packets</div><div class="ttdoc">While Node::low_lvl_recv_and_handle() or async part of Node::async_wait_latency_then_handle_incoming(...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01605">peer_socket.hpp:1605</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a83ba2b4c39555afad67932ea6ed39bbe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a83ba2b4c39555afad67932ea6ed39bbe">flow::net_flow::Peer_socket::node_send</a></div><div class="ttdeci">size_t node_send(const Function&lt; size_t(size_t max_data_size)&gt; &amp;snd_buf_feed_func, Error_code *err_code)</div><div class="ttdoc">Non-template helper for template send() that forwards the send() logic to Node::send().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00134">peer_socket.cpp:134</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a845f21b754ef641b65b1fe44727fb429"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a845f21b754ef641b65b1fe44727fb429">flow::net_flow::Peer_socket::m_snd_rexmit_q</a></div><div class="ttdeci">std::list&lt; boost::shared_ptr&lt; Sent_packet &gt; &gt; m_snd_rexmit_q</div><div class="ttdoc">If retransmission is on, this is the retransmission queue.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01946">peer_socket.hpp:1946</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a85b3d271527dbaa04b1d9f751631fd71"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a85b3d271527dbaa04b1d9f751631fd71">flow::net_flow::Peer_socket::m_init_rexmit_scheduled_task</a></div><div class="ttdeci">util::Scheduled_task_handle m_init_rexmit_scheduled_task</div><div class="ttdoc">Connection attempt scheduled task; fires if an individual connection request packet is not answered w...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02133">peer_socket.hpp:2133</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a88f967e74f8618c94088113e918ab52f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a88f967e74f8618c94088113e918ab52f">flow::net_flow::Peer_socket::m_rcv_delayed_ack_timer</a></div><div class="ttdeci">util::Timer m_rcv_delayed_ack_timer</div><div class="ttdoc">Timer started, assuming delayed ACKs are enabled, when the first Individual_ack is placed onto an emp...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01674">peer_socket.hpp:1674</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a845f21b754ef641b65b1fe44727fb429"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a845f21b754ef641b65b1fe44727fb429">flow::net_flow::Peer_socket::m_snd_rexmit_q</a></div><div class="ttdeci">std::list&lt; boost::shared_ptr&lt; Sent_packet &gt; &gt; m_snd_rexmit_q</div><div class="ttdoc">If retransmission is on, this is the retransmission queue.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01947">peer_socket.hpp:1947</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a85b3d271527dbaa04b1d9f751631fd71"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a85b3d271527dbaa04b1d9f751631fd71">flow::net_flow::Peer_socket::m_init_rexmit_scheduled_task</a></div><div class="ttdeci">util::Scheduled_task_handle m_init_rexmit_scheduled_task</div><div class="ttdoc">Connection attempt scheduled task; fires if an individual connection request packet is not answered w...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02134">peer_socket.hpp:2134</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a88f967e74f8618c94088113e918ab52f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a88f967e74f8618c94088113e918ab52f">flow::net_flow::Peer_socket::m_rcv_delayed_ack_timer</a></div><div class="ttdeci">util::Timer m_rcv_delayed_ack_timer</div><div class="ttdoc">Timer started, assuming delayed ACKs are enabled, when the first Individual_ack is placed onto an emp...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01675">peer_socket.hpp:1675</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a89d852e3722532d75006b024714a5cef"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a89d852e3722532d75006b024714a5cef">flow::net_flow::Peer_socket::rexmit_on</a></div><div class="ttdeci">bool rexmit_on() const</div><div class="ttdoc">Whether retransmission is enabled on this connection.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00373">peer_socket.cpp:373</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a8abde92d5189bf2a058fe8741789f814"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a8abde92d5189bf2a058fe8741789f814">flow::net_flow::Peer_socket::node_sync_receive</a></div><div class="ttdeci">size_t node_sync_receive(const Function&lt; size_t()&gt; &amp;rcv_buf_consume_func_or_empty, const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">This is to sync_receive() as node_receive() is to receive().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00234">peer_socket.cpp:234</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a90abde8badaf451ba6ca615e9936d5df"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">flow::net_flow::Peer_socket::Lock_guard</a></div><div class="ttdeci">util::Lock_guard&lt; Mutex &gt; Lock_guard</div><div class="ttdoc">Short-hand for RAII lock guard of Mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00899">peer_socket.hpp:899</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9320421e96ab89e6528da6a28b008709"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9320421e96ab89e6528da6a28b008709">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_seq_iter</a></div><div class="ttdeci">Sent_pkt_by_seq_num_map::iterator Sent_pkt_ordered_by_seq_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_seq_num iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00955">peer_socket.hpp:955</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">flow::net_flow::Peer_socket::Int_state</a></div><div class="ttdeci">Int_state</div><div class="ttdoc">The state of the socket (and the connection from this end's point of view) for the internal state mac...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00913">peer_socket.hpp:914</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a98c6729b318f28b61e144f8a9b1f4dfc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">flow::net_flow::Peer_socket::Options_lock</a></div><div class="ttdeci">util::Lock_guard&lt; Options_mutex &gt; Options_lock</div><div class="ttdoc">Short-hand for lock that acquires exclusive access to an Options_mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00888">peer_socket.hpp:888</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a993edf95f6bce2e57e7111e42533dc74"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a993edf95f6bce2e57e7111e42533dc74">flow::net_flow::Peer_socket::m_snd_buf</a></div><div class="ttdeci">Socket_buffer m_snd_buf</div><div class="ttdoc">The Send buffer; user feeds data at the back; Node consumes data at the front.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01278">peer_socket.hpp:1278</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a90abde8badaf451ba6ca615e9936d5df"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">flow::net_flow::Peer_socket::Lock_guard</a></div><div class="ttdeci">util::Lock_guard&lt; Mutex &gt; Lock_guard</div><div class="ttdoc">Short-hand for RAII lock guard of Mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00900">peer_socket.hpp:900</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9320421e96ab89e6528da6a28b008709"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9320421e96ab89e6528da6a28b008709">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_seq_iter</a></div><div class="ttdeci">Sent_pkt_by_seq_num_map::iterator Sent_pkt_ordered_by_seq_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_seq_num iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00956">peer_socket.hpp:956</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880f"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880f">flow::net_flow::Peer_socket::Int_state</a></div><div class="ttdeci">Int_state</div><div class="ttdoc">The state of the socket (and the connection from this end's point of view) for the internal state mac...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00914">peer_socket.hpp:915</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a98c6729b318f28b61e144f8a9b1f4dfc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a98c6729b318f28b61e144f8a9b1f4dfc">flow::net_flow::Peer_socket::Options_lock</a></div><div class="ttdeci">util::Lock_guard&lt; Options_mutex &gt; Options_lock</div><div class="ttdoc">Short-hand for lock that acquires exclusive access to an Options_mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00889">peer_socket.hpp:889</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a993edf95f6bce2e57e7111e42533dc74"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a993edf95f6bce2e57e7111e42533dc74">flow::net_flow::Peer_socket::m_snd_buf</a></div><div class="ttdeci">Socket_buffer m_snd_buf</div><div class="ttdoc">The Send buffer; user feeds data at the back; Node consumes data at the front.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01279">peer_socket.hpp:1279</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9ab710704237f912eb219f9b8d574afc"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9ab710704237f912eb219f9b8d574afc">flow::net_flow::Peer_socket::close_abruptly</a></div><div class="ttdeci">void close_abruptly(Error_code *err_code=0)</div><div class="ttdoc">Acts as if fatal error error::Code::S_USER_CLOSED_ABRUPTLY has been discovered on the connection.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00269">peer_socket.cpp:269</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9f5063c85a2070822cf69a530f0af1f5"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9f5063c85a2070822cf69a530f0af1f5">flow::net_flow::Peer_socket::m_snd_rexmit_q_size</a></div><div class="ttdeci">size_t m_snd_rexmit_q_size</div><div class="ttdoc">Equals m_snd_rexmit_q.size(). Kept since m_snd_rexmit_q.size() may be O(n) depending on implementatio...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01949">peer_socket.hpp:1949</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9f5063c85a2070822cf69a530f0af1f5"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9f5063c85a2070822cf69a530f0af1f5">flow::net_flow::Peer_socket::m_snd_rexmit_q_size</a></div><div class="ttdeci">size_t m_snd_rexmit_q_size</div><div class="ttdoc">Equals m_snd_rexmit_q.size(). Kept since m_snd_rexmit_q.size() may be O(n) depending on implementatio...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01950">peer_socket.hpp:1950</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aa1f821dde38a7aa572651730744edbd8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aa1f821dde38a7aa572651730744edbd8">flow::net_flow::Peer_socket::max_block_size</a></div><div class="ttdeci">size_t max_block_size() const</div><div class="ttdoc">The maximum number of bytes of user data per received or sent packet on this connection.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00352">peer_socket.cpp:352</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aa7398394052c8e634365fb979c294644"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aa7398394052c8e634365fb979c294644">flow::net_flow::Peer_socket::m_rcv_reassembly_q_data_size</a></div><div class="ttdeci">size_t m_rcv_reassembly_q_data_size</div><div class="ttdoc">With retransmission enabled, the sum of Received_packet::m_size over all packets stored in the reasse...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01545">peer_socket.hpp:1545</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aa7398394052c8e634365fb979c294644"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aa7398394052c8e634365fb979c294644">flow::net_flow::Peer_socket::m_rcv_reassembly_q_data_size</a></div><div class="ttdeci">size_t m_rcv_reassembly_q_data_size</div><div class="ttdoc">With retransmission enabled, the sum of Received_packet::m_size over all packets stored in the reasse...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01546">peer_socket.hpp:1546</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aa9e7e1be830c901bc7348742e79ba2e7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aa9e7e1be830c901bc7348742e79ba2e7">flow::net_flow::Peer_socket::node</a></div><div class="ttdeci">Node * node() const</div><div class="ttdoc">Node that produced this Peer_socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00095">peer_socket.cpp:95</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aa9f77167af54cfe2921fab5fd143eff4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aa9f77167af54cfe2921fab5fd143eff4">flow::net_flow::Peer_socket::m_snd_last_loss_event_when</a></div><div class="ttdeci">Fine_time_pt m_snd_last_loss_event_when</div><div class="ttdoc">The last time that Node has detected a packet loss event and so informed m_snd_cong_ctl by calling th...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02087">peer_socket.hpp:2087</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aa9f77167af54cfe2921fab5fd143eff4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aa9f77167af54cfe2921fab5fd143eff4">flow::net_flow::Peer_socket::m_snd_last_loss_event_when</a></div><div class="ttdeci">Fine_time_pt m_snd_last_loss_event_when</div><div class="ttdoc">The last time that Node has detected a packet loss event and so informed m_snd_cong_ctl by calling th...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02088">peer_socket.hpp:2088</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aad81cc16fc6f0d353fdc1379e1dd4712"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aad81cc16fc6f0d353fdc1379e1dd4712">flow::net_flow::Peer_socket::info</a></div><div class="ttdeci">Peer_socket_info info() const</div><div class="ttdoc">Returns a structure containing the most up-to-date stats about this connection.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00323">peer_socket.cpp:323</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aae9cb8f2dbd50ddaa0265d940b149ef3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3">flow::net_flow::Peer_socket::m_rcv_buf</a></div><div class="ttdeci">Socket_buffer m_rcv_buf</div><div class="ttdoc">The Receive buffer; Node feeds data at the back; user consumes data at the front.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01260">peer_socket.hpp:1260</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aaec992a7a14368623cc03c4382d71107"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aaec992a7a14368623cc03c4382d71107">flow::net_flow::Peer_socket::Recvd_pkt_iter</a></div><div class="ttdeci">Recvd_pkt_map::iterator Recvd_pkt_iter</div><div class="ttdoc">Short-hand for m_rcv_packets_with_gaps iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00971">peer_socket.hpp:971</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab41b19ed4e62cb14fcd7dac81e4a8f41"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">flow::net_flow::Peer_socket::m_mutex</a></div><div class="ttdeci">Mutex m_mutex</div><div class="ttdoc">This object's mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01341">peer_socket.hpp:1341</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab4aff3e65ef9551b6c5ab890173b741e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab4aff3e65ef9551b6c5ab890173b741e">flow::net_flow::Peer_socket::m_snd_stats</a></div><div class="ttdeci">Peer_socket_send_stats_accumulator m_snd_stats</div><div class="ttdoc">Stats regarding outgoing traffic (and resulting incoming ACKs) for this connection so far.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02106">peer_socket.hpp:2106</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab7dc3b752b67295c82919c2f87aed60b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::iterator Sent_pkt_ordered_by_when_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00946">peer_socket.hpp:946</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_abd6f3174914c3ec559954b4125f2f9dd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#abd6f3174914c3ec559954b4125f2f9dd">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_seq_const_iter</a></div><div class="ttdeci">Sent_pkt_by_seq_num_map::const_iterator Sent_pkt_ordered_by_seq_const_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_seq_num const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00952">peer_socket.hpp:952</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ac4c942e1bb6c4dc4b24251f294a2f92d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ac4c942e1bb6c4dc4b24251f294a2f92d">flow::net_flow::Peer_socket::m_info_on_close</a></div><div class="ttdeci">Peer_socket_info m_info_on_close</div><div class="ttdoc">This is the final set of stats collected at the time the socket was moved to S_CLOSED m_state.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02166">peer_socket.hpp:2166</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aae9cb8f2dbd50ddaa0265d940b149ef3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aae9cb8f2dbd50ddaa0265d940b149ef3">flow::net_flow::Peer_socket::m_rcv_buf</a></div><div class="ttdeci">Socket_buffer m_rcv_buf</div><div class="ttdoc">The Receive buffer; Node feeds data at the back; user consumes data at the front.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01261">peer_socket.hpp:1261</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aaec992a7a14368623cc03c4382d71107"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aaec992a7a14368623cc03c4382d71107">flow::net_flow::Peer_socket::Recvd_pkt_iter</a></div><div class="ttdeci">Recvd_pkt_map::iterator Recvd_pkt_iter</div><div class="ttdoc">Short-hand for m_rcv_packets_with_gaps iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00972">peer_socket.hpp:972</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab41b19ed4e62cb14fcd7dac81e4a8f41"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab41b19ed4e62cb14fcd7dac81e4a8f41">flow::net_flow::Peer_socket::m_mutex</a></div><div class="ttdeci">Mutex m_mutex</div><div class="ttdoc">This object's mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01342">peer_socket.hpp:1342</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab4aff3e65ef9551b6c5ab890173b741e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab4aff3e65ef9551b6c5ab890173b741e">flow::net_flow::Peer_socket::m_snd_stats</a></div><div class="ttdeci">Peer_socket_send_stats_accumulator m_snd_stats</div><div class="ttdoc">Stats regarding outgoing traffic (and resulting incoming ACKs) for this connection so far.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02107">peer_socket.hpp:2107</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ab7dc3b752b67295c82919c2f87aed60b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ab7dc3b752b67295c82919c2f87aed60b">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::iterator Sent_pkt_ordered_by_when_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00947">peer_socket.hpp:947</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_abd6f3174914c3ec559954b4125f2f9dd"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#abd6f3174914c3ec559954b4125f2f9dd">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_seq_const_iter</a></div><div class="ttdeci">Sent_pkt_by_seq_num_map::const_iterator Sent_pkt_ordered_by_seq_const_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_seq_num const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00953">peer_socket.hpp:953</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ac4c942e1bb6c4dc4b24251f294a2f92d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ac4c942e1bb6c4dc4b24251f294a2f92d">flow::net_flow::Peer_socket::m_info_on_close</a></div><div class="ttdeci">Peer_socket_info m_info_on_close</div><div class="ttdoc">This is the final set of stats collected at the time the socket was moved to S_CLOSED m_state.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02167">peer_socket.hpp:2167</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ac7cbefb99ae173bd5f355f5d082564ce"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ac7cbefb99ae173bd5f355f5d082564ce">flow::net_flow::Peer_socket::ensure_open</a></div><div class="ttdeci">bool ensure_open(Error_code *err_code) const</div><div class="ttdoc">Helper that is equivalent to Node::ensure_sock_open(this, err_code).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00419">peer_socket.cpp:419</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ac974bdce3d2035d2af69078837f59482"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_const_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::const_iterator Sent_pkt_ordered_by_when_const_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00943">peer_socket.hpp:943</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aca66d1cb582ca027745d1ef847266cc4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aca66d1cb582ca027745d1ef847266cc4">flow::net_flow::Peer_socket::m_snd_init_seq_num</a></div><div class="ttdeci">Sequence_number m_snd_init_seq_num</div><div class="ttdoc">The Initial Sequence Number (ISN) used in our original SYN or SYN_ACK.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01688">peer_socket.hpp:1688</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_accf6d724ed1f145716ae3d4567f582f3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#accf6d724ed1f145716ae3d4567f582f3">flow::net_flow::Peer_socket::opt</a></div><div class="ttdeci">Opt_type opt(const Opt_type &amp;opt_val_ref) const</div><div class="ttdoc">Analogous to Node::opt() but for per-socket options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02644">peer_socket.hpp:2644</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ac974bdce3d2035d2af69078837f59482"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ac974bdce3d2035d2af69078837f59482">flow::net_flow::Peer_socket::Sent_pkt_ordered_by_when_const_iter</a></div><div class="ttdeci">Sent_pkt_by_sent_when_map::const_iterator Sent_pkt_ordered_by_when_const_iter</div><div class="ttdoc">Short-hand for m_snd_flying_pkts_by_sent_when const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00944">peer_socket.hpp:944</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aca66d1cb582ca027745d1ef847266cc4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aca66d1cb582ca027745d1ef847266cc4">flow::net_flow::Peer_socket::m_snd_init_seq_num</a></div><div class="ttdeci">Sequence_number m_snd_init_seq_num</div><div class="ttdoc">The Initial Sequence Number (ISN) used in our original SYN or SYN_ACK.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01689">peer_socket.hpp:1689</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_accf6d724ed1f145716ae3d4567f582f3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#accf6d724ed1f145716ae3d4567f582f3">flow::net_flow::Peer_socket::opt</a></div><div class="ttdeci">Opt_type opt(const Opt_type &amp;opt_val_ref) const</div><div class="ttdoc">Analogous to Node::opt() but for per-socket options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02639">peer_socket.hpp:2639</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_acd100a3c02fad5d9e00fcbc1f645f116"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#acd100a3c02fad5d9e00fcbc1f645f116">flow::net_flow::Peer_socket::bytes_blocks_str</a></div><div class="ttdeci">std::string bytes_blocks_str(size_t bytes) const</div><div class="ttdoc">Helper that, given a byte count, returns a string with that byte count and the number of max_block_si...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00424">peer_socket.cpp:424</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad08b53052e7eedfa7a925258f5ef1cba"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad08b53052e7eedfa7a925258f5ef1cba">flow::net_flow::Peer_socket::m_snd_smoothed_round_trip_time</a></div><div class="ttdeci">Fine_duration m_snd_smoothed_round_trip_time</div><div class="ttdoc">Estimated current round trip time of packets, computed as a smooth value over the past individual RTT...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02038">peer_socket.hpp:2038</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad1e36619c78b15f46576a18678a4ee67"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad1e36619c78b15f46576a18678a4ee67">flow::net_flow::Peer_socket::Mutex</a></div><div class="ttdeci">util::Mutex_recursive Mutex</div><div class="ttdoc">Short-hand for reentrant mutex type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00896">peer_socket.hpp:896</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad29f61b9885b10ddc3846cdae0560518"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad29f61b9885b10ddc3846cdae0560518">flow::net_flow::Peer_socket::sync_receive_impl</a></div><div class="ttdeci">size_t sync_receive_impl(const Mutable_buffer_sequence &amp;target, const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">Same as sync_receive() but uses a Fine_clock-based Fine_duration non-template type for implementation...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02610">peer_socket.hpp:2610</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad46ed439a3d118eb2b540e9f99a7b0ca"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad46ed439a3d118eb2b540e9f99a7b0ca">flow::net_flow::Peer_socket::m_rcv_pending_acks</a></div><div class="ttdeci">std::vector&lt; boost::shared_ptr&lt; Individual_ack &gt; &gt; m_rcv_pending_acks</div><div class="ttdoc">The received packets to be acknowledged in the next low-level ACK packet to be sent to the other side...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01566">peer_socket.hpp:1566</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad59c09f34003873a3c207cc590236773"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad59c09f34003873a3c207cc590236773">flow::net_flow::Peer_socket::m_opts</a></div><div class="ttdeci">Peer_socket_options m_opts</div><div class="ttdoc">This socket's per-socket set of options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01178">peer_socket.hpp:1178</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad7414dfca4b869dd3a4e0de39195c69e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad7414dfca4b869dd3a4e0de39195c69e">flow::net_flow::Peer_socket::m_rcv_in_rcv_wnd_recovery</a></div><div class="ttdeci">bool m_rcv_in_rcv_wnd_recovery</div><div class="ttdoc">true indicates we are in a state where we've decided other side needs to be informed that our receive...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01636">peer_socket.hpp:1636</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad772e56de286567c4b7a681907b5f285"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad772e56de286567c4b7a681907b5f285">flow::net_flow::Peer_socket::m_connection_timeout_scheduled_task</a></div><div class="ttdeci">util::Scheduled_task_handle m_connection_timeout_scheduled_task</div><div class="ttdoc">Connection timeout scheduled task; fires if the entire initial connection process does not complete w...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02158">peer_socket.hpp:2158</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad08b53052e7eedfa7a925258f5ef1cba"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad08b53052e7eedfa7a925258f5ef1cba">flow::net_flow::Peer_socket::m_snd_smoothed_round_trip_time</a></div><div class="ttdeci">Fine_duration m_snd_smoothed_round_trip_time</div><div class="ttdoc">Estimated current round trip time of packets, computed as a smooth value over the past individual RTT...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02039">peer_socket.hpp:2039</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad1e36619c78b15f46576a18678a4ee67"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad1e36619c78b15f46576a18678a4ee67">flow::net_flow::Peer_socket::Mutex</a></div><div class="ttdeci">util::Mutex_recursive Mutex</div><div class="ttdoc">Short-hand for reentrant mutex type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00897">peer_socket.hpp:897</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad29f61b9885b10ddc3846cdae0560518"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad29f61b9885b10ddc3846cdae0560518">flow::net_flow::Peer_socket::sync_receive_impl</a></div><div class="ttdeci">size_t sync_receive_impl(const Mutable_buffer_sequence &amp;target, const Fine_time_pt &amp;wait_until, Error_code *err_code)</div><div class="ttdoc">Same as sync_receive() but uses a Fine_clock-based Fine_duration non-template type for implementation...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02605">peer_socket.hpp:2605</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad46ed439a3d118eb2b540e9f99a7b0ca"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad46ed439a3d118eb2b540e9f99a7b0ca">flow::net_flow::Peer_socket::m_rcv_pending_acks</a></div><div class="ttdeci">std::vector&lt; boost::shared_ptr&lt; Individual_ack &gt; &gt; m_rcv_pending_acks</div><div class="ttdoc">The received packets to be acknowledged in the next low-level ACK packet to be sent to the other side...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01567">peer_socket.hpp:1567</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad59c09f34003873a3c207cc590236773"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad59c09f34003873a3c207cc590236773">flow::net_flow::Peer_socket::m_opts</a></div><div class="ttdeci">Peer_socket_options m_opts</div><div class="ttdoc">This socket's per-socket set of options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01179">peer_socket.hpp:1179</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad7414dfca4b869dd3a4e0de39195c69e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad7414dfca4b869dd3a4e0de39195c69e">flow::net_flow::Peer_socket::m_rcv_in_rcv_wnd_recovery</a></div><div class="ttdeci">bool m_rcv_in_rcv_wnd_recovery</div><div class="ttdoc">true indicates we are in a state where we've decided other side needs to be informed that our receive...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01637">peer_socket.hpp:1637</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad772e56de286567c4b7a681907b5f285"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad772e56de286567c4b7a681907b5f285">flow::net_flow::Peer_socket::m_connection_timeout_scheduled_task</a></div><div class="ttdeci">util::Scheduled_task_handle m_connection_timeout_scheduled_task</div><div class="ttdoc">Connection timeout scheduled task; fires if the entire initial connection process does not complete w...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02159">peer_socket.hpp:2159</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ad94e37c8cca01f801f13e9e0e0bc857d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ad94e37c8cca01f801f13e9e0e0bc857d">flow::net_flow::Peer_socket::options</a></div><div class="ttdeci">Peer_socket_options options() const</div><div class="ttdoc">Copies this socket's option set and returns that copy.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00318">peer_socket.cpp:318</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_addfbe1487c621d4a9c464aec61bc108a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a">flow::net_flow::Peer_socket::m_opts_mutex</a></div><div class="ttdeci">Options_mutex m_opts_mutex</div><div class="ttdoc">The mutex protecting m_opts.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01181">peer_socket.hpp:1181</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_addfc181f4d43ab816b2ede9216bf9331"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#addfc181f4d43ab816b2ede9216bf9331">flow::net_flow::Peer_socket::Recvd_pkt_map</a></div><div class="ttdeci">std::map&lt; Sequence_number, boost::shared_ptr&lt; Received_packet &gt; &gt; Recvd_pkt_map</div><div class="ttdoc">Short-hand for m_rcv_packets_with_gaps type; see that data member.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00965">peer_socket.hpp:965</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ade41e13eb5176d833c7b1ea144612353"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ade41e13eb5176d833c7b1ea144612353">flow::net_flow::Peer_socket::Recvd_pkt_const_iter</a></div><div class="ttdeci">Recvd_pkt_map::const_iterator Recvd_pkt_const_iter</div><div class="ttdoc">Short-hand for m_rcv_packets_with_gaps const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00968">peer_socket.hpp:968</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ae5d47460784cc20c9e44237edffaac95"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ae5d47460784cc20c9e44237edffaac95">flow::net_flow::Peer_socket::m_open_sub_state</a></div><div class="ttdeci">Open_sub_state m_open_sub_state</div><div class="ttdoc">See state().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01201">peer_socket.hpp:1201</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ae804be57cf09b9bf76eafa8ffff73de6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ae804be57cf09b9bf76eafa8ffff73de6">flow::net_flow::Peer_socket::Drop_timer_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Drop_timer &gt; Drop_timer_ptr</div><div class="ttdoc">Short-hand for shared_ptr to immutable Drop_timer (can't use Drop_timer::Ptr due to C++ and circular ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00856">peer_socket.hpp:856</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ae82958ed6d71be46b96eceaca6214143"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ae82958ed6d71be46b96eceaca6214143">flow::net_flow::Peer_socket::m_rcv_packets_with_gaps</a></div><div class="ttdeci">Recvd_pkt_map m_rcv_packets_with_gaps</div><div class="ttdoc">The sequence-number-ordered collection of all received-and-not-dropped-due-to-buffer-overflow packets...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01536">peer_socket.hpp:1536</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ae870847f024fca7109c15557bb165480"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ae870847f024fca7109c15557bb165480">flow::net_flow::Peer_socket::m_snd_flying_bytes</a></div><div class="ttdeci">size_t m_snd_flying_bytes</div><div class="ttdoc">The number of bytes contained in all In-flight packets, used at least for comparison against the cong...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01898">peer_socket.hpp:1898</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aea98297d775f2085c21daf41c6582200"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aea98297d775f2085c21daf41c6582200">flow::net_flow::Peer_socket::m_snd_temp_pkts_marked_to_drop</a></div><div class="ttdeci">std::vector&lt; order_num_t &gt; m_snd_temp_pkts_marked_to_drop</div><div class="ttdoc">Helper data structure to store the packet IDs of packets that are marked Dropped during a single run ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01915">peer_socket.hpp:1915</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aeb88e9253cc3f52269cb762c8e57e6d0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0">flow::net_flow::Peer_socket::receive</a></div><div class="ttdeci">size_t receive(const Mutable_buffer_sequence &amp;target, Error_code *err_code=0)</div><div class="ttdoc">Receives (consumes from the Receive buffer) bytes of data, up to a given maximum cumulative number of...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02552">peer_socket.hpp:2552</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_af392484f79ffcead4f74ca351672d8d4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#af392484f79ffcead4f74ca351672d8d4">flow::net_flow::Peer_socket::m_snd_last_data_sent_when</a></div><div class="ttdeci">Fine_time_pt m_snd_last_data_sent_when</div><div class="ttdoc">Time at which the last Data_packet low-level packet for this connection was sent.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02103">peer_socket.hpp:2103</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_addfbe1487c621d4a9c464aec61bc108a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#addfbe1487c621d4a9c464aec61bc108a">flow::net_flow::Peer_socket::m_opts_mutex</a></div><div class="ttdeci">Options_mutex m_opts_mutex</div><div class="ttdoc">The mutex protecting m_opts.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01182">peer_socket.hpp:1182</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_addfc181f4d43ab816b2ede9216bf9331"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#addfc181f4d43ab816b2ede9216bf9331">flow::net_flow::Peer_socket::Recvd_pkt_map</a></div><div class="ttdeci">std::map&lt; Sequence_number, boost::shared_ptr&lt; Received_packet &gt; &gt; Recvd_pkt_map</div><div class="ttdoc">Short-hand for m_rcv_packets_with_gaps type; see that data member.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00966">peer_socket.hpp:966</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ade41e13eb5176d833c7b1ea144612353"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ade41e13eb5176d833c7b1ea144612353">flow::net_flow::Peer_socket::Recvd_pkt_const_iter</a></div><div class="ttdeci">Recvd_pkt_map::const_iterator Recvd_pkt_const_iter</div><div class="ttdoc">Short-hand for m_rcv_packets_with_gaps const iterator type.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00969">peer_socket.hpp:969</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ae5d47460784cc20c9e44237edffaac95"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ae5d47460784cc20c9e44237edffaac95">flow::net_flow::Peer_socket::m_open_sub_state</a></div><div class="ttdeci">Open_sub_state m_open_sub_state</div><div class="ttdoc">See state().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01202">peer_socket.hpp:1202</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ae804be57cf09b9bf76eafa8ffff73de6"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ae804be57cf09b9bf76eafa8ffff73de6">flow::net_flow::Peer_socket::Drop_timer_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Drop_timer &gt; Drop_timer_ptr</div><div class="ttdoc">Short-hand for shared_ptr to immutable Drop_timer (can't use Drop_timer::Ptr due to C++ and circular ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00857">peer_socket.hpp:857</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ae82958ed6d71be46b96eceaca6214143"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ae82958ed6d71be46b96eceaca6214143">flow::net_flow::Peer_socket::m_rcv_packets_with_gaps</a></div><div class="ttdeci">Recvd_pkt_map m_rcv_packets_with_gaps</div><div class="ttdoc">The sequence-number-ordered collection of all received-and-not-dropped-due-to-buffer-overflow packets...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01537">peer_socket.hpp:1537</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_ae870847f024fca7109c15557bb165480"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#ae870847f024fca7109c15557bb165480">flow::net_flow::Peer_socket::m_snd_flying_bytes</a></div><div class="ttdeci">size_t m_snd_flying_bytes</div><div class="ttdoc">The number of bytes contained in all In-flight packets, used at least for comparison against the cong...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01899">peer_socket.hpp:1899</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aea98297d775f2085c21daf41c6582200"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aea98297d775f2085c21daf41c6582200">flow::net_flow::Peer_socket::m_snd_temp_pkts_marked_to_drop</a></div><div class="ttdeci">std::vector&lt; order_num_t &gt; m_snd_temp_pkts_marked_to_drop</div><div class="ttdoc">Helper data structure to store the packet IDs of packets that are marked Dropped during a single run ...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01916">peer_socket.hpp:1916</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_aeb88e9253cc3f52269cb762c8e57e6d0"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#aeb88e9253cc3f52269cb762c8e57e6d0">flow::net_flow::Peer_socket::receive</a></div><div class="ttdeci">size_t receive(const Mutable_buffer_sequence &amp;target, Error_code *err_code=0)</div><div class="ttdoc">Receives (consumes from the Receive buffer) bytes of data, up to a given maximum cumulative number of...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02547">peer_socket.hpp:2547</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_af392484f79ffcead4f74ca351672d8d4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#af392484f79ffcead4f74ca351672d8d4">flow::net_flow::Peer_socket::m_snd_last_data_sent_when</a></div><div class="ttdeci">Fine_time_pt m_snd_last_data_sent_when</div><div class="ttdoc">Time at which the last Data_packet low-level packet for this connection was sent.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02104">peer_socket.hpp:2104</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_af3ac1b0b3c9b1c3a5ec246148595c657"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#af3ac1b0b3c9b1c3a5ec246148595c657">flow::net_flow::Peer_socket::node_receive</a></div><div class="ttdeci">size_t node_receive(const Function&lt; size_t()&gt; &amp;rcv_buf_consume_func, Error_code *err_code)</div><div class="ttdoc">Non-template helper for template receive() that forwards the receive() logic to Node::receive().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00219">peer_socket.cpp:219</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_af90b656d7e0b7e746b8beb4e24717cec"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#af90b656d7e0b7e746b8beb4e24717cec">flow::net_flow::Peer_socket::send</a></div><div class="ttdeci">size_t send(const Const_buffer_sequence &amp;data, Error_code *err_code=0)</div><div class="ttdoc">Sends (adds to the Send buffer) the given bytes of data up to a maximum internal buffer size; and asy...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02448">peer_socket.hpp:2448</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_af90b656d7e0b7e746b8beb4e24717cec"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#af90b656d7e0b7e746b8beb4e24717cec">flow::net_flow::Peer_socket::send</a></div><div class="ttdeci">size_t send(const Const_buffer_sequence &amp;data, Error_code *err_code=0)</div><div class="ttdoc">Sends (adds to the Send buffer) the given bytes of data up to a maximum internal buffer size; and asy...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02443">peer_socket.hpp:2443</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_af982953b5136c1df488066eacc293a78"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#af982953b5136c1df488066eacc293a78">flow::net_flow::Peer_socket::state</a></div><div class="ttdeci">State state(Open_sub_state *open_sub_state=0) const</div><div class="ttdoc">Current State of the socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00085">peer_socket.cpp:85</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_afd590cc70d06b8e903027e4924fd095a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#afd590cc70d06b8e903027e4924fd095a">flow::net_flow::Peer_socket::m_rcv_wnd_recovery_scheduled_task</a></div><div class="ttdeci">util::Scheduled_task_handle m_rcv_wnd_recovery_scheduled_task</div><div class="ttdoc">When m_rcv_in_rcv_wnd_recovery is true, this is the scheduled task to possibly send another unsolicit...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01654">peer_socket.hpp:1654</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_afd590cc70d06b8e903027e4924fd095a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#afd590cc70d06b8e903027e4924fd095a">flow::net_flow::Peer_socket::m_rcv_wnd_recovery_scheduled_task</a></div><div class="ttdeci">util::Scheduled_task_handle m_rcv_wnd_recovery_scheduled_task</div><div class="ttdoc">When m_rcv_in_rcv_wnd_recovery is true, this is the scheduled task to possibly send another unsolicit...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l01655">peer_socket.hpp:1655</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Send__bandwidth__estimator_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Send__bandwidth__estimator.html">flow::net_flow::Send_bandwidth_estimator</a></div><div class="ttdoc">A per-Peer_socket module that tries to estimate the bandwidth available to the outgoing flow.</div><div class="ttdef"><b>Definition:</b> <a href="bandwidth_8hpp_source.html#l00122">bandwidth.hpp:125</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html">flow::net_flow::Sequence_number</a></div><div class="ttdoc">An internal net_flow sequence number identifying a piece of data.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00125">seq_num.hpp:126</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Sequence__number_html_ab307e12c0cf8cefbe7fb1ec8588af2a8"><div class="ttname"><a href="classflow_1_1net__flow_1_1Sequence__number.html#ab307e12c0cf8cefbe7fb1ec8588af2a8">flow::net_flow::Sequence_number::seq_num_t</a></div><div class="ttdeci">uint64_t seq_num_t</div><div class="ttdoc">Raw sequence number type.</div><div class="ttdef"><b>Definition:</b> <a href="seq__num_8hpp_source.html#l00138">seq_num.hpp:138</a></div></div>
@@ -2868,9 +2863,9 @@
 <div class="ttc" id="anamespaceflow_1_1util_html_adf23368210219716b6fd22d15b765cb6"><div class="ttname"><a href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">flow::util::Task_engine</a></div><div class="ttdeci">boost::asio::io_service Task_engine</div><div class="ttdoc">Short-hand for boost.asio event service, the central class of boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00135">util_fwd.hpp:135</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_ae7416d64d2989051104bb396e28e15e6"><div class="ttname"><a href="namespaceflow_1_1util.html#ae7416d64d2989051104bb396e28e15e6">flow::util::Timer</a></div><div class="ttdeci">boost::asio::basic_waitable_timer&lt; Fine_clock &gt; Timer</div><div class="ttdoc">boost.asio timer.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00202">util_fwd.hpp:202</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af09888b3a8feaff209b6625e493bc338"><div class="ttname"><a href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">flow::util::Blob</a></div><div class="ttdeci">Blob_with_log_context&lt;&gt; Blob</div><div class="ttdoc">A concrete Blob_with_log_context that compile-time-disables Basic_blob::share() and the sharing API d...</div><div class="ttdef"><b>Definition:</b> <a href="blob__fwd_8hpp_source.html#l00060">blob_fwd.hpp:60</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
 <div class="ttc" id="anet__flow_2error_2error_8hpp_html"><div class="ttname"><a href="net__flow_2error_2error_8hpp.html">error.hpp</a></div></div>
 <div class="ttc" id="anet__flow__fwd_8hpp_html"><div class="ttname"><a href="net__flow__fwd_8hpp.html">net_flow_fwd.hpp</a></div></div>
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@@ -2879,39 +2874,39 @@
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 <div class="ttc" id="asocket__buffer_8hpp_html"><div class="ttname"><a href="socket__buffer_8hpp.html">socket_buffer.hpp</a></div></div>
 <div class="ttc" id="asocket__stats_8hpp_html"><div class="ttname"><a href="socket__stats_8hpp.html">socket_stats.hpp</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></div><div class="ttdoc">Metadata describing the data sent in the acknowledgment of an individual received packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02382">peer_socket.hpp:2384</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_a0af3081c75e1c552807ecc7af416efba"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a0af3081c75e1c552807ecc7af416efba">flow::net_flow::Peer_socket::Individual_ack::m_data_size</a></div><div class="ttdeci">const size_t m_data_size</div><div class="ttdoc">Number of bytes in the packet's user data.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02409">peer_socket.hpp:2409</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_a209d79e058d103c84fc10be84d492a8b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">flow::net_flow::Peer_socket::Individual_ack::Const_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; const Individual_ack &gt; Const_ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to immutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02391">peer_socket.hpp:2391</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_a29080d01ac5bc0d51ad407587c6721ab"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a29080d01ac5bc0d51ad407587c6721ab">flow::net_flow::Peer_socket::Individual_ack::m_rexmit_id</a></div><div class="ttdeci">const unsigned int m_rexmit_id</div><div class="ttdoc">Retransmit counter of the packet (as reported by sender).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02403">peer_socket.hpp:2403</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_a8a237605b83d8a0d1b175395a83ad768"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a8a237605b83d8a0d1b175395a83ad768">flow::net_flow::Peer_socket::Individual_ack::m_seq_num</a></div><div class="ttdeci">const Sequence_number m_seq_num</div><div class="ttdoc">Sequence number of first datum in packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02396">peer_socket.hpp:2396</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_ac31bcdf4026275cb6fa90947a68d562a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ac31bcdf4026275cb6fa90947a68d562a">flow::net_flow::Peer_socket::Individual_ack::Individual_ack</a></div><div class="ttdeci">Individual_ack(const Individual_ack &amp;)=delete</div><div class="ttdoc">Force direct member initialization even if no member is const.</div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_ad261f9c8073e31fe328734c97a9d384b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad261f9c8073e31fe328734c97a9d384b">flow::net_flow::Peer_socket::Individual_ack::operator=</a></div><div class="ttdeci">Individual_ack &amp; operator=(const Individual_ack &amp;)=delete</div><div class="ttdoc">Forbid copy assignment.</div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_ad32d17739f7965eeeedfbeae5bfbc1a3"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3">flow::net_flow::Peer_socket::Individual_ack::Ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Individual_ack &gt; Ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to mutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02388">peer_socket.hpp:2388</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_ad6e1407a2a3fc95e568b00f31e423b25"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad6e1407a2a3fc95e568b00f31e423b25">flow::net_flow::Peer_socket::Individual_ack::m_received_when</a></div><div class="ttdeci">const Fine_time_pt m_received_when</div><div class="ttdoc">When was it received? Used for supplying delay before acknowledging (for other side's RTT calculation...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02406">peer_socket.hpp:2406</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html">flow::net_flow::Peer_socket::Received_packet</a></div><div class="ttdoc">Metadata (and data, if retransmission is on) for a packet that has been received (and,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02337">peer_socket.hpp:2341</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html_a7d0760b1dead081bdcf775fbca7f708b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#a7d0760b1dead081bdcf775fbca7f708b">flow::net_flow::Peer_socket::Received_packet::m_size</a></div><div class="ttdeci">const size_t m_size</div><div class="ttdoc">Number of bytes in the Data_packet::m_data field of that packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02345">peer_socket.hpp:2345</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></div><div class="ttdoc">Metadata describing the data sent in the acknowledgment of an individual received packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02383">peer_socket.hpp:2385</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_a0af3081c75e1c552807ecc7af416efba"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a0af3081c75e1c552807ecc7af416efba">flow::net_flow::Peer_socket::Individual_ack::m_data_size</a></div><div class="ttdeci">const size_t m_data_size</div><div class="ttdoc">Number of bytes in the packet's user data.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02410">peer_socket.hpp:2410</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_a209d79e058d103c84fc10be84d492a8b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">flow::net_flow::Peer_socket::Individual_ack::Const_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; const Individual_ack &gt; Const_ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to immutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02392">peer_socket.hpp:2392</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_a29080d01ac5bc0d51ad407587c6721ab"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a29080d01ac5bc0d51ad407587c6721ab">flow::net_flow::Peer_socket::Individual_ack::m_rexmit_id</a></div><div class="ttdeci">const unsigned int m_rexmit_id</div><div class="ttdoc">Retransmit counter of the packet (as reported by sender).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02404">peer_socket.hpp:2404</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_a8a237605b83d8a0d1b175395a83ad768"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a8a237605b83d8a0d1b175395a83ad768">flow::net_flow::Peer_socket::Individual_ack::m_seq_num</a></div><div class="ttdeci">const Sequence_number m_seq_num</div><div class="ttdoc">Sequence number of first datum in packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02397">peer_socket.hpp:2397</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_ad32d17739f7965eeeedfbeae5bfbc1a3"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3">flow::net_flow::Peer_socket::Individual_ack::Ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; Individual_ack &gt; Ptr</div><div class="ttdoc">Short-hand for ref-counted pointer to mutable objects of this class.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02389">peer_socket.hpp:2389</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_ad6e1407a2a3fc95e568b00f31e423b25"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad6e1407a2a3fc95e568b00f31e423b25">flow::net_flow::Peer_socket::Individual_ack::m_received_when</a></div><div class="ttdeci">const Fine_time_pt m_received_when</div><div class="ttdoc">When was it received? Used for supplying delay before acknowledging (for other side's RTT calculation...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02407">peer_socket.hpp:2407</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack_html_af6ffacd3b12b70bf06b70bc8645315c5"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#af6ffacd3b12b70bf06b70bc8645315c5">flow::net_flow::Peer_socket::Individual_ack::m_nc</a></div><div class="ttdeci">util::Noncopyable m_nc</div><div class="ttdoc">Make us noncopyable without breaking aggregateness (direct-init).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02413">peer_socket.hpp:2413</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html">flow::net_flow::Peer_socket::Received_packet</a></div><div class="ttdoc">Metadata (and data, if retransmission is on) for a packet that has been received (and,...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02338">peer_socket.hpp:2342</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html_a7d0760b1dead081bdcf775fbca7f708b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#a7d0760b1dead081bdcf775fbca7f708b">flow::net_flow::Peer_socket::Received_packet::m_size</a></div><div class="ttdeci">const size_t m_size</div><div class="ttdoc">Number of bytes in the Data_packet::m_data field of that packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02346">peer_socket.hpp:2346</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html_a9f0809d5dd7272e31f4111ee2be97330"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#a9f0809d5dd7272e31f4111ee2be97330">flow::net_flow::Peer_socket::Received_packet::Received_packet</a></div><div class="ttdeci">Received_packet(log::Logger *logger_ptr, size_t size, util::Blob *src_data)</div><div class="ttdoc">Constructs object by storing size of data and, if so instructed, the data themselves.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00451">peer_socket.cpp:451</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html_ac3e88e37e53d2572f89c599e520e3e2a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#ac3e88e37e53d2572f89c599e520e3e2a">flow::net_flow::Peer_socket::Received_packet::m_data</a></div><div class="ttdeci">util::Blob m_data</div><div class="ttdoc">Byte sequence equal to that of Data_packet::m_data of the packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02353">peer_socket.hpp:2353</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">flow::net_flow::Peer_socket::Sent_packet::Sent_when</a></div><div class="ttdoc">Data store to keep timing related info when a packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02282">peer_socket.hpp:2283</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html_a5265c3824ad25d1de4f888fa811dd4e6"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_order_num</a></div><div class="ttdeci">const order_num_t m_order_num</div><div class="ttdoc">Order number of the packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02297">peer_socket.hpp:2297</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html_abc5bf2e627dad5d2dcfb0324853b37f7"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#abc5bf2e627dad5d2dcfb0324853b37f7">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_sent_cwnd_bytes</a></div><div class="ttdeci">size_t m_sent_cwnd_bytes</div><div class="ttdoc">The congestion window size (in bytes) that is used when the packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02327">peer_socket.hpp:2327</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html_ad513e58f4eb611c3a91d96df26f53f2c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#ad513e58f4eb611c3a91d96df26f53f2c">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_sent_time</a></div><div class="ttdeci">Fine_time_pt m_sent_time</div><div class="ttdoc">The timestamp when the packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02309">peer_socket.hpp:2309</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">flow::net_flow::Peer_socket::Sent_packet</a></div><div class="ttdoc">Metadata (and data, if retransmission is on) for a packet that has been sent one (if retransmission i...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02177">peer_socket.hpp:2181</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Received__packet_html_ac3e88e37e53d2572f89c599e520e3e2a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html#ac3e88e37e53d2572f89c599e520e3e2a">flow::net_flow::Peer_socket::Received_packet::m_data</a></div><div class="ttdeci">util::Blob m_data</div><div class="ttdoc">Byte sequence equal to that of Data_packet::m_data of the packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02354">peer_socket.hpp:2354</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html">flow::net_flow::Peer_socket::Sent_packet::Sent_when</a></div><div class="ttdoc">Data store to keep timing related info when a packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02283">peer_socket.hpp:2284</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html_a5265c3824ad25d1de4f888fa811dd4e6"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_order_num</a></div><div class="ttdeci">const order_num_t m_order_num</div><div class="ttdoc">Order number of the packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02298">peer_socket.hpp:2298</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html_abc5bf2e627dad5d2dcfb0324853b37f7"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#abc5bf2e627dad5d2dcfb0324853b37f7">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_sent_cwnd_bytes</a></div><div class="ttdeci">size_t m_sent_cwnd_bytes</div><div class="ttdoc">The congestion window size (in bytes) that is used when the packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02328">peer_socket.hpp:2328</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when_html_ad513e58f4eb611c3a91d96df26f53f2c"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#ad513e58f4eb611c3a91d96df26f53f2c">flow::net_flow::Peer_socket::Sent_packet::Sent_when::m_sent_time</a></div><div class="ttdeci">Fine_time_pt m_sent_time</div><div class="ttdoc">The timestamp when the packet is sent out.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02310">peer_socket.hpp:2310</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html">flow::net_flow::Peer_socket::Sent_packet</a></div><div class="ttdoc">Metadata (and data, if retransmission is on) for a packet that has been sent one (if retransmission i...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02178">peer_socket.hpp:2182</a></div></div>
 <div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a28eb52fe9520497d02f6c0cd51a5fa9b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a28eb52fe9520497d02f6c0cd51a5fa9b">flow::net_flow::Peer_socket::Sent_packet::Sent_packet</a></div><div class="ttdeci">Sent_packet(bool rexmit_on, boost::shared_ptr&lt; Data_packet &gt; packet, const Sent_when &amp;sent_when)</div><div class="ttdoc">Constructs object with the given values and m_acks_after_me at zero.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l00440">peer_socket.cpp:440</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e">flow::net_flow::Peer_socket::Sent_packet::m_sent_when</a></div><div class="ttdeci">std::vector&lt; Sent_when &gt; m_sent_when</div><div class="ttdoc">Time stamps, order numbers, and other info at the times when the different attempts (including origin...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02220">peer_socket.hpp:2220</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a5b5762a1effba90f631c06ad76f9774b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a5b5762a1effba90f631c06ad76f9774b">flow::net_flow::Peer_socket::Sent_packet::m_size</a></div><div class="ttdeci">const size_t m_size</div><div class="ttdoc">Number of bytes in the Data_packet::m_data field of the sent packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02198">peer_socket.hpp:2198</a></div></div>
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+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a5b5762a1effba90f631c06ad76f9774b"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a5b5762a1effba90f631c06ad76f9774b">flow::net_flow::Peer_socket::Sent_packet::m_size</a></div><div class="ttdeci">const size_t m_size</div><div class="ttdoc">Number of bytes in the Data_packet::m_data field of the sent packet.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02199">peer_socket.hpp:2199</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a704afa0007b8354ad78acad64d029ecf"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a704afa0007b8354ad78acad64d029ecf">flow::net_flow::Peer_socket::Sent_packet::m_packet</a></div><div class="ttdeci">const boost::shared_ptr&lt; Data_packet &gt; m_packet</div><div class="ttdoc">If retransmission is on, this is the DATA packet itself that was sent; otherwise null.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02255">peer_socket.hpp:2255</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_a7913f73b4e2f164ca51ebb505b63c1f2"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a7913f73b4e2f164ca51ebb505b63c1f2">flow::net_flow::Peer_socket::Sent_packet::ack_count_t</a></div><div class="ttdeci">uint16_t ack_count_t</div><div class="ttdoc">Type used for m_acks_after_me.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02194">peer_socket.hpp:2194</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_html_affeb974bc03966744adfcda0366a50aa"><div class="ttname"><a href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa">flow::net_flow::Peer_socket::Sent_packet::m_acks_after_me</a></div><div class="ttdeci">ack_count_t m_acks_after_me</div><div class="ttdoc">The number of times any packet with m_sent_when.back().m_order_num &gt; this-&gt;m_sent_when....</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l02240">peer_socket.hpp:2240</a></div></div>
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+<div class="ttc" id="astructflow_1_1util_1_1Noncopyable_html"><div class="ttname"><a href="structflow_1_1util_1_1Noncopyable.html">flow::util::Noncopyable</a></div><div class="ttdoc">Useful as a no-unique-address private member to make a type noncopyable while keeping that type an ag...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00073">util.hpp:74</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/random_8hpp.html b/doc/flow_doc/generated/html_full/random_8hpp.html
index 1a2739c4e..23f131678 100644
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/random_8hpp_source.html b/doc/flow_doc/generated/html_full/random_8hpp_source.html
index 10f0cb50f..d3f19a132 100644
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 <!-- start footer part -->
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/sched__task_8cpp.html b/doc/flow_doc/generated/html_full/sched__task_8cpp.html
index bff88aa79..696aa8c3b 100644
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@@ -107,7 +107,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/sched__task_8cpp_source.html b/doc/flow_doc/generated/html_full/sched__task_8cpp_source.html
index 51be20c49..b99f65b31 100644
--- a/doc/flow_doc/generated/html_full/sched__task_8cpp_source.html
+++ b/doc/flow_doc/generated/html_full/sched__task_8cpp_source.html
@@ -364,13 +364,13 @@
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 <div class="ttc" id="anamespaceflow_1_1util_html_ad92e68a1b22556f2625292098c0036a2"><div class="ttname"><a href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">flow::util::scheduled_task_cancel</a></div><div class="ttdeci">bool scheduled_task_cancel(log::Logger *logger_ptr, Scheduled_task_handle task)</div><div class="ttdoc">Attempts to prevent the execution of a previously scheduled (by schedule_task_from_now() or similar) ...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task_8cpp_source.html#l00026">sched_task.cpp:26</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_add471ec4a0f0b76793c9c84adb4916d5"><div class="ttname"><a href="namespaceflow_1_1util.html#add471ec4a0f0b76793c9c84adb4916d5">flow::util::Scheduled_task_const_handle</a></div><div class="ttdeci">boost::shared_ptr&lt; const Scheduled_task_handle_state &gt; Scheduled_task_const_handle</div><div class="ttdoc">Equivalent to Scheduled_task_handle but refers to immutable version of a task.</div><div class="ttdef"><b>Definition:</b> <a href="sched__task__fwd_8hpp_source.html#l00052">sched_task_fwd.hpp:52</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
 <div class="ttc" id="asched__task_8hpp_html"><div class="ttname"><a href="sched__task_8hpp.html">sched_task.hpp</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/sched__task_8hpp.html b/doc/flow_doc/generated/html_full/sched__task_8hpp.html
index aa2f4b914..8e01d3c51 100644
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/sched__task_8hpp_source.html b/doc/flow_doc/generated/html_full/sched__task_8hpp_source.html
index 9edc5d36f..0d5ff725e 100644
--- a/doc/flow_doc/generated/html_full/sched__task_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/sched__task_8hpp_source.html
@@ -346,15 +346,15 @@
 <div class="ttc" id="anamespaceflow_1_1util_html_aa0d10f5a906b3229f48979aa43e9ff7e"><div class="ttname"><a href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">flow::util::Scheduled_task_handle</a></div><div class="ttdeci">boost::shared_ptr&lt; Scheduled_task_handle_state &gt; Scheduled_task_handle</div><div class="ttdoc">Black-box type that represents a handle to a scheduled task as scheduled by schedule_task_at() or sch...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task__fwd_8hpp_source.html#l00045">sched_task_fwd.hpp:45</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_aad8c8f7335eb892350dc386cb4be397e"><div class="ttname"><a href="namespaceflow_1_1util.html#aad8c8f7335eb892350dc386cb4be397e">flow::util::schedule_task_at</a></div><div class="ttdeci">Scheduled_task_handle schedule_task_at(log::Logger *logger_ptr, const Fine_time_pt &amp;at, bool single_threaded, Task_engine *task_engine, Scheduled_task_handler &amp;&amp;task_body_moved)</div><div class="ttdoc">Identical to schedule_task_from_now() except the time is specified in absolute terms.</div><div class="ttdef"><b>Definition:</b> <a href="sched__task_8hpp_source.html#l00245">sched_task.hpp:245</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_adf23368210219716b6fd22d15b765cb6"><div class="ttname"><a href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">flow::util::Task_engine</a></div><div class="ttdeci">boost::asio::io_service Task_engine</div><div class="ttdoc">Short-hand for boost.asio event service, the central class of boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00135">util_fwd.hpp:135</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
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 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/sched__task__fwd_8hpp.html b/doc/flow_doc/generated/html_full/sched__task__fwd_8hpp.html
index 5e6c07264..904e7f930 100644
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+++ b/doc/flow_doc/generated/html_full/sched__task__fwd_8hpp.html
@@ -130,7 +130,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/sched__task__fwd_8hpp_source.html b/doc/flow_doc/generated/html_full/sched__task__fwd_8hpp_source.html
index b1a83dc68..ad4f04919 100644
--- a/doc/flow_doc/generated/html_full/sched__task__fwd_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/sched__task__fwd_8hpp_source.html
@@ -374,7 +374,7 @@
 <div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#ad339cf2543e0ad692203817b19e4e8ed">scheduled_task_canceled</a>(<a class="code hl_class" href="classflow_1_1log_1_1Logger.html">log::Logger</a>* logger_ptr, <a class="code hl_typedef" href="namespaceflow_1_1util.html#add471ec4a0f0b76793c9c84adb4916d5">Scheduled_task_const_handle</a> task);</div>
 <div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span> </div>
 <div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span>} <span class="comment">// namespace flow::util</span></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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@@ -388,13 +388,13 @@
 <div class="ttc" id="anamespaceflow_1_1util_html_ad92e68a1b22556f2625292098c0036a2"><div class="ttname"><a href="namespaceflow_1_1util.html#ad92e68a1b22556f2625292098c0036a2">flow::util::scheduled_task_cancel</a></div><div class="ttdeci">bool scheduled_task_cancel(log::Logger *logger_ptr, Scheduled_task_handle task)</div><div class="ttdoc">Attempts to prevent the execution of a previously scheduled (by schedule_task_from_now() or similar) ...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task_8cpp_source.html#l00026">sched_task.cpp:26</a></div></div>
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 <div class="ttc" id="anamespaceflow_1_1util_html_adf23368210219716b6fd22d15b765cb6"><div class="ttname"><a href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">flow::util::Task_engine</a></div><div class="ttdeci">boost::asio::io_service Task_engine</div><div class="ttdoc">Short-hand for boost.asio event service, the central class of boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00135">util_fwd.hpp:135</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/segregated__thread__task__loop_8cpp_source.html b/doc/flow_doc/generated/html_full/segregated__thread__task__loop_8cpp_source.html
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 <div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span> </div>
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+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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 <div class="ttc" id="anamespaceflow_1_1async_html_ad70c594985b402d9024b80370611fc1c"><div class="ttname"><a href="namespaceflow_1_1async.html#ad70c594985b402d9024b80370611fc1c">flow::async::op_to_exec_ctx&lt; Task_engine_ptr &gt;</a></div><div class="ttdeci">Task_engine_ptr op_to_exec_ctx&lt; Task_engine_ptr &gt;(Concurrent_task_loop *loop, const Op &amp;op)</div><div class="ttdoc">Template specialization for operation that obtains the underlying execution context,...</div><div class="ttdef"><b>Definition:</b> <a href="segregated__thread__task__loop_8cpp_source.html#l00419">segregated_thread_task_loop.cpp:419</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1log_html_a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b"><div class="ttname"><a href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::Sev::S_TRACE</a></div><div class="ttdeci">@ S_TRACE</div><div class="ttdoc">Message indicates any condition that may occur with great frequency (thus verbose if logged).</div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a685b86585da2fa5186f51854e7ae1561"><div class="ttname"><a href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">flow::util::ostream_op_string</a></div><div class="ttdeci">std::string ostream_op_string(T const &amp;... ostream_args)</div><div class="ttdoc">Equivalent to ostream_op_to_string() but returns a new string by value instead of writing to the call...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00356">util.hpp:356</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a685b86585da2fa5186f51854e7ae1561"><div class="ttname"><a href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">flow::util::ostream_op_string</a></div><div class="ttdeci">std::string ostream_op_string(T const &amp;... ostream_args)</div><div class="ttdoc">Equivalent to ostream_op_to_string() but returns a new string by value instead of writing to the call...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00381">util.hpp:381</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a74d4a66fb00055be4e1bd6ee98e04667"><div class="ttname"><a href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667">flow::util::schedule_task_from_now</a></div><div class="ttdeci">Scheduled_task_handle schedule_task_from_now(log::Logger *logger_ptr, const Fine_duration &amp;from_now, bool single_threaded, Task_engine *task_engine, Scheduled_task_handler &amp;&amp;task_body_moved)</div><div class="ttdoc">Schedule the given function to execute in a certain amount of time: A handy wrapper around Timer (asi...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task_8hpp_source.html#l00034">sched_task.hpp:34</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_aa0d10f5a906b3229f48979aa43e9ff7e"><div class="ttname"><a href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">flow::util::Scheduled_task_handle</a></div><div class="ttdeci">boost::shared_ptr&lt; Scheduled_task_handle_state &gt; Scheduled_task_handle</div><div class="ttdoc">Black-box type that represents a handle to a scheduled task as scheduled by schedule_task_at() or sch...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task__fwd_8hpp_source.html#l00045">sched_task_fwd.hpp:45</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_adf23368210219716b6fd22d15b765cb6"><div class="ttname"><a href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">flow::util::Task_engine</a></div><div class="ttdeci">boost::asio::io_service Task_engine</div><div class="ttdoc">Short-hand for boost.asio event service, the central class of boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00135">util_fwd.hpp:135</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_ae4dc52186797094b3040379ff19124c9"><div class="ttname"><a href="namespaceflow_1_1util.html#ae4dc52186797094b3040379ff19124c9">flow::util::String_view</a></div><div class="ttdeci">Basic_string_view&lt; char &gt; String_view</div><div class="ttdoc">Commonly used char-based Basic_string_view. See its doc header.</div><div class="ttdef"><b>Definition:</b> <a href="string__view_8hpp_source.html#l00191">string_view.hpp:191</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af030c3119f060a9630afca31098a78a5"><div class="ttname"><a href="namespaceflow_1_1util.html#af030c3119f060a9630afca31098a78a5">flow::util::Thread</a></div><div class="ttdeci">boost::thread Thread</div><div class="ttdoc">Short-hand for standard thread class.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00078">util_fwd.hpp:78</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
 <div class="ttc" id="asched__task_8hpp_html"><div class="ttname"><a href="sched__task_8hpp.html">sched_task.hpp</a></div></div>
 <div class="ttc" id="asegregated__thread__task__loop_8hpp_html"><div class="ttname"><a href="segregated__thread__task__loop_8hpp.html">segregated_thread_task_loop.hpp</a></div></div>
 <div class="ttc" id="atask__qing__thread_8hpp_html"><div class="ttname"><a href="task__qing__thread_8hpp.html">task_qing_thread.hpp</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/segregated__thread__task__loop_8hpp.html b/doc/flow_doc/generated/html_full/segregated__thread__task__loop_8hpp.html
index 6b975ba7d..3a4d7b98e 100644
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+++ b/doc/flow_doc/generated/html_full/segregated__thread__task__loop_8hpp.html
@@ -101,7 +101,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/segregated__thread__task__loop_8hpp_source.html b/doc/flow_doc/generated/html_full/segregated__thread__task__loop_8hpp_source.html
index b2b413981..29b0e5c06 100644
--- a/doc/flow_doc/generated/html_full/segregated__thread__task__loop_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/segregated__thread__task__loop_8hpp_source.html
@@ -383,7 +383,7 @@
 <div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span> </div>
 <div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span>} <span class="comment">// namespace flow::async</span></div>
 <div class="ttc" id="aasync__fwd_8hpp_html"><div class="ttname"><a href="async__fwd_8hpp.html">async_fwd.hpp</a></div></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1async_1_1Concurrent__task__loop_html"><div class="ttname"><a href="classflow_1_1async_1_1Concurrent__task__loop.html">flow::async::Concurrent_task_loop</a></div><div class="ttdoc">The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...</div><div class="ttdef"><b>Definition:</b> <a href="concurrent__task__loop_8hpp_source.html#l00322">concurrent_task_loop.hpp:324</a></div></div>
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 <div class="ttc" id="aclassflow_1_1async_1_1Op__list_html"><div class="ttname"><a href="classflow_1_1async_1_1Op__list.html">flow::async::Op_list</a></div><div class="ttdoc">Simple, immutable vector-like sequence of N opaque async::Op objects, usually corresponding to N work...</div><div class="ttdef"><b>Definition:</b> <a href="op_8hpp_source.html#l00056">op.hpp:58</a></div></div>
@@ -423,12 +423,12 @@
 <div class="ttc" id="anamespaceflow_1_1async_html_af35fb65bdea1a3a92929ec2c4a6a6b72"><div class="ttname"><a href="namespaceflow_1_1async.html#af35fb65bdea1a3a92929ec2c4a6a6b72">flow::async::Task</a></div><div class="ttdeci">Function&lt; void()&gt; Task</div><div class="ttdoc">Short-hand for a task that can be posted for execution by a Concurrent_task_loop or flow::util::Task_...</div><div class="ttdef"><b>Definition:</b> <a href="async__fwd_8hpp_source.html#l00096">async_fwd.hpp:96</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_aa0d10f5a906b3229f48979aa43e9ff7e"><div class="ttname"><a href="namespaceflow_1_1util.html#aa0d10f5a906b3229f48979aa43e9ff7e">flow::util::Scheduled_task_handle</a></div><div class="ttdeci">boost::shared_ptr&lt; Scheduled_task_handle_state &gt; Scheduled_task_handle</div><div class="ttdoc">Black-box type that represents a handle to a scheduled task as scheduled by schedule_task_at() or sch...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task__fwd_8hpp_source.html#l00045">sched_task_fwd.hpp:45</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_ae4dc52186797094b3040379ff19124c9"><div class="ttname"><a href="namespaceflow_1_1util.html#ae4dc52186797094b3040379ff19124c9">flow::util::String_view</a></div><div class="ttdeci">Basic_string_view&lt; char &gt; String_view</div><div class="ttdoc">Commonly used char-based Basic_string_view. See its doc header.</div><div class="ttdef"><b>Definition:</b> <a href="string__view_8hpp_source.html#l00191">string_view.hpp:191</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/seq__num_8cpp.html b/doc/flow_doc/generated/html_full/seq__num_8cpp.html
index ddf9bfa6b..c7a2487b3 100644
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 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/seq__num_8cpp_source.html b/doc/flow_doc/generated/html_full/seq__num_8cpp_source.html
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@@ -386,15 +386,15 @@
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-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/seq__num_8hpp_source.html b/doc/flow_doc/generated/html_full/seq__num_8hpp_source.html
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 <div class="ttc" id="anamespaceflow_1_1net__flow_html"><div class="ttname"><a href="namespaceflow_1_1net__flow.html">flow::net_flow</a></div><div class="ttdoc">Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...</div><div class="ttdef"><b>Definition:</b> <a href="asio_2node_8cpp_source.html#l00024">node.cpp:25</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/serial__file__logger_8cpp.html b/doc/flow_doc/generated/html_full/serial__file__logger_8cpp.html
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/serial__file__logger_8cpp_source.html b/doc/flow_doc/generated/html_full/serial__file__logger_8cpp_source.html
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--- a/doc/flow_doc/generated/html_full/serial__file__logger_8cpp_source.html
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 <div class="ttc" id="anamespaceflow_1_1log_html"><div class="ttname"><a href="namespaceflow_1_1log.html">flow::log</a></div><div class="ttdoc">Flow module providing logging functionality.</div><div class="ttdef"><b>Definition:</b> <a href="async__file__logger_8cpp_source.html#l00027">async_file_logger.cpp:28</a></div></div>
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-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
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 </div><!-- fragment --></div><!-- contents -->
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/serial__file__logger_8hpp.html b/doc/flow_doc/generated/html_full/serial__file__logger_8hpp.html
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/serial__file__logger_8hpp_source.html b/doc/flow_doc/generated/html_full/serial__file__logger_8hpp_source.html
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/server__socket_8cpp.html b/doc/flow_doc/generated/html_full/server__socket_8cpp.html
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@@ -102,7 +102,7 @@
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 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/server__socket_8cpp_source.html b/doc/flow_doc/generated/html_full/server__socket_8cpp_source.html
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+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a446ee7115c70cbcd48e3897d32fc0276"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276">flow::net_flow::Node::sock_validate_options</a></div><div class="ttdeci">bool sock_validate_options(const Peer_socket_options &amp;opts, const Peer_socket_options *prev_opts, Error_code *err_code) const</div><div class="ttdoc">Analogous to validate_options() but checks per-socket options instead of per-Node options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06239">peer_socket.cpp:6239</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a3f9cf4d7160b3e27b3b0131fc4507ce7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a3f9cf4d7160b3e27b3b0131fc4507ce7">flow::net_flow::Node::cancel_timers</a></div><div class="ttdeci">void cancel_timers(Peer_socket::Ptr sock)</div><div class="ttdoc">Cancel any timers and scheduled tasks active in the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04453">peer_socket.cpp:4453</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a446ee7115c70cbcd48e3897d32fc0276"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a446ee7115c70cbcd48e3897d32fc0276">flow::net_flow::Node::sock_validate_options</a></div><div class="ttdeci">bool sock_validate_options(const Peer_socket_options &amp;opts, const Peer_socket_options *prev_opts, Error_code *err_code) const</div><div class="ttdoc">Analogous to validate_options() but checks per-socket options instead of per-Node options.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06245">peer_socket.cpp:6245</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a449ef757abee4c5d12f8fc62a5ca66b4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a449ef757abee4c5d12f8fc62a5ca66b4">flow::net_flow::Node::m_opts_mutex</a></div><div class="ttdeci">Options_mutex m_opts_mutex</div><div class="ttdoc">The mutex protecting m_opts.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03707">node.hpp:3707</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a51b26bff4cdf545f22d8edec7185c5c4"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a51b26bff4cdf545f22d8edec7185c5c4">flow::net_flow::Node::serv_is_acceptable</a></div><div class="ttdeci">bool serv_is_acceptable(const boost::any &amp;serv_as_any) const</div><div class="ttdoc">Returns true if and only if calling serv-&gt;accept() with at least some arguments would return either n...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00342">server_socket.cpp:342</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6bcd840049c57150cdaa5c59d22c488b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6bcd840049c57150cdaa5c59d22c488b">flow::net_flow::Node::create_syn_ack</a></div><div class="ttdeci">Syn_ack_packet::Ptr create_syn_ack(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Like create_syn() but for SYN_ACK.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05826">peer_socket.cpp:5826</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6daaa6a5a7d0b7e5a2266dd9db400c01"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6daaa6a5a7d0b7e5a2266dd9db400c01">flow::net_flow::Node::sock_create</a></div><div class="ttdeci">virtual Peer_socket * sock_create(const Peer_socket_options &amp;opts)</div><div class="ttdoc">Internal factory used for ALL Peer_socket objects created by this Node (including subclasses).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06500">peer_socket.cpp:6500</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6bcd840049c57150cdaa5c59d22c488b"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6bcd840049c57150cdaa5c59d22c488b">flow::net_flow::Node::create_syn_ack</a></div><div class="ttdeci">Syn_ack_packet::Ptr create_syn_ack(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Like create_syn() but for SYN_ACK.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05832">peer_socket.cpp:5832</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a6daaa6a5a7d0b7e5a2266dd9db400c01"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a6daaa6a5a7d0b7e5a2266dd9db400c01">flow::net_flow::Node::sock_create</a></div><div class="ttdeci">virtual Peer_socket * sock_create(const Peer_socket_options &amp;opts)</div><div class="ttdoc">Internal factory used for ALL Peer_socket objects created by this Node (including subclasses).</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06506">peer_socket.cpp:6506</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a74a6a82a1390a76e985593969fb47184"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a74a6a82a1390a76e985593969fb47184">flow::net_flow::Node::async_no_sock_low_lvl_rst_send</a></div><div class="ttdeci">void async_no_sock_low_lvl_rst_send(Low_lvl_packet::Const_ptr causing_packet, const util::Udp_endpoint &amp;low_lvl_remote_endpoint)</div><div class="ttdoc">Sends an RST to the given UDP endpoint in response to the given incoming low-level packet that came f...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__io_8cpp_source.html#l00586">low_lvl_io.cpp:586</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8938c4a091edf1c1c77e2cc8f505f0ff"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8938c4a091edf1c1c77e2cc8f505f0ff">flow::net_flow::Node::m_seq_num_generator</a></div><div class="ttdeci">Sequence_number::Generator m_seq_num_generator</div><div class="ttdoc">Sequence number generator (at least to generate ISNs). Only thread W can access this.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03780">node.hpp:3780</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8a4ddf81ddbeab1f740940c4cc0d3625"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8a4ddf81ddbeab1f740940c4cc0d3625">flow::net_flow::Node::event_set_all_check_delta</a></div><div class="ttdeci">void event_set_all_check_delta(bool defer_delta_check)</div><div class="ttdoc">For each WAITING Event_set within the Node: checks for any events that hold, and if any do hold,...</div><div class="ttdef"><b>Definition:</b> <a href="event__set_8cpp_source.html#l01129">event_set.cpp:1129</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a8a6c02bf520a16df4028bd3c88732a8d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a8a6c02bf520a16df4028bd3c88732a8d">flow::net_flow::Node::serv_peer_socket_closed</a></div><div class="ttdeci">void serv_peer_socket_closed(Server_socket::Ptr serv, Peer_socket::Ptr sock)</div><div class="ttdoc">Records that a Server_socket-contained (i.e., currently un-established, or established but not yet ac...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00786">server_socket.cpp:786</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a90244d69d550370158bbe843ab595a7a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a90244d69d550370158bbe843ab595a7a">flow::net_flow::Node::m_socks</a></div><div class="ttdeci">Socket_id_to_socket_map m_socks</div><div class="ttdoc">The peer-to-peer connections this Node is currently tracking.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03792">node.hpp:3792</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a97c8679c70ac9c7dda394fdf335aaed7"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a97c8679c70ac9c7dda394fdf335aaed7">flow::net_flow::Node::Options_lock</a></div><div class="ttdeci">Peer_socket::Options_lock Options_lock</div><div class="ttdoc">Short-hand for lock that acquires exclusive access to an Options_mutex.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l01439">node.hpp:1439</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a99836ffb51eaefa4d2cc21770461cd97"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">flow::net_flow::Node::socket_id</a></div><div class="ttdeci">static Socket_id socket_id(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Constructs the socket pair (connection ID) for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06068">peer_socket.cpp:6068</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa1d9656e9e1480021c87530ec6dbebbe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa1d9656e9e1480021c87530ec6dbebbe">flow::net_flow::Node::sock_set_int_state</a></div><div class="ttdeci">void sock_set_int_state(Peer_socket::Ptr sock, Peer_socket::Int_state new_state)</div><div class="ttdoc">Sets internal state of given socket to the given state and logs a TRACE message about it.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06103">peer_socket.cpp:6103</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_a99836ffb51eaefa4d2cc21770461cd97"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#a99836ffb51eaefa4d2cc21770461cd97">flow::net_flow::Node::socket_id</a></div><div class="ttdeci">static Socket_id socket_id(Peer_socket::Const_ptr sock)</div><div class="ttdoc">Constructs the socket pair (connection ID) for the given socket.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06074">peer_socket.cpp:6074</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aa1d9656e9e1480021c87530ec6dbebbe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aa1d9656e9e1480021c87530ec6dbebbe">flow::net_flow::Node::sock_set_int_state</a></div><div class="ttdeci">void sock_set_int_state(Peer_socket::Ptr sock, Peer_socket::Int_state new_state)</div><div class="ttdoc">Sets internal state of given socket to the given state and logs a TRACE message about it.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06109">peer_socket.cpp:6109</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aaaf5c3b5e6b9f9f1658b60907b36a498"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aaaf5c3b5e6b9f9f1658b60907b36a498">flow::net_flow::Node::handle_syn_to_listening_server</a></div><div class="ttdeci">Peer_socket::Ptr handle_syn_to_listening_server(Server_socket::Ptr serv, boost::shared_ptr&lt; const Syn_packet &gt; syn, const util::Udp_endpoint &amp;low_lvl_remote_endpoint)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed low-level SYN packet delivered to the given server so...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00433">server_socket.cpp:433</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aae148cec361b59237996a4b30c6624b5"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aae148cec361b59237996a4b30c6624b5">flow::net_flow::Node::running</a></div><div class="ttdeci">bool running() const</div><div class="ttdoc">Returns true if and only if the Node is operating.</div><div class="ttdef"><b>Definition:</b> <a href="node_8cpp_source.html#l00420">node.cpp:420</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aae28990628a86a07327f49973f2390df"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aae28990628a86a07327f49973f2390df">flow::net_flow::Node::m_servs</a></div><div class="ttdeci">Port_to_server_map m_servs</div><div class="ttdoc">The server sockets this Node is currently tracking.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03798">node.hpp:3798</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab0026feecdb74eda904d00d2c7016bab"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab0026feecdb74eda904d00d2c7016bab">flow::net_flow::Node::m_sock_events</a></div><div class="ttdeci">Event_set::Ev_type_to_socks_map m_sock_events</div><div class="ttdoc">All sockets that have been detected to be &quot;ready&quot; (by the Event_set doc header definition) at any poi...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03830">node.hpp:3830</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab427ebc124a6233ae48a7562662a6e81"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab427ebc124a6233ae48a7562662a6e81">flow::net_flow::Node::setup_drop_timer</a></div><div class="ttdeci">void setup_drop_timer(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Creates a new Drop Timer and saves it to sock-&gt;m_snd_drop_timer.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04498">peer_socket.cpp:4498</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ab427ebc124a6233ae48a7562662a6e81"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ab427ebc124a6233ae48a7562662a6e81">flow::net_flow::Node::setup_drop_timer</a></div><div class="ttdeci">void setup_drop_timer(const Socket_id &amp;socket_id, Peer_socket::Ptr sock)</div><div class="ttdoc">Creates a new Drop Timer and saves it to sock-&gt;m_snd_drop_timer.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04504">peer_socket.cpp:4504</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_aba411df8746d5fd4db2d28df3a016f5e"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#aba411df8746d5fd4db2d28df3a016f5e">flow::net_flow::Node::listen_worker</a></div><div class="ttdeci">void listen_worker(flow_port_t local_port, const Peer_socket_options *child_sock_opts, Server_socket::Ptr *serv)</div><div class="ttdoc">Thread W implementation of listen().</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00218">server_socket.cpp:218</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_abf0204e999b5dc28ee9b5db6eae9aa1a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#abf0204e999b5dc28ee9b5db6eae9aa1a">flow::net_flow::Node::serv_peer_socket_acceptable</a></div><div class="ttdeci">void serv_peer_socket_acceptable(Server_socket::Ptr serv, Peer_socket::Ptr sock)</div><div class="ttdoc">Records that an unestablished socket sock (Peer_socket::Int_state::S_SYN_RCVD) has just become establ...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00838">server_socket.cpp:838</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_abf80b7de1398e93d1d4289ef5bf2ae2c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#abf80b7de1398e93d1d4289ef5bf2ae2c">flow::net_flow::Node::handle_data_to_syn_rcvd</a></div><div class="ttdeci">void handle_data_to_syn_rcvd(Peer_socket::Ptr sock, boost::shared_ptr&lt; Data_packet &gt; packet)</div><div class="ttdoc">Handles a just-deserialized, just-demultiplexed, low-level DATA packet delivered to the given peer so...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00701">server_socket.cpp:701</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac1485c07049d4bee70ad4ef2fc07bf12"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac1485c07049d4bee70ad4ef2fc07bf12">flow::net_flow::Node::setup_connection_timers</a></div><div class="ttdeci">void setup_connection_timers(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, bool initial)</div><div class="ttdoc">Assuming we've just sent SYN or SYN_ACK, sets up an asynchronous scheduled task to fire within some a...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04323">peer_socket.cpp:4323</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac397d3fd163f1456b7bb370a3cff951c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">flow::net_flow::Node::sock_rcv_wnd</a></div><div class="ttdeci">size_t sock_rcv_wnd(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Computes and returns the currently correct rcv_wnd value; that is the amount of space free in Receive...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05518">peer_socket.cpp:5518</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac1485c07049d4bee70ad4ef2fc07bf12"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac1485c07049d4bee70ad4ef2fc07bf12">flow::net_flow::Node::setup_connection_timers</a></div><div class="ttdeci">void setup_connection_timers(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, bool initial)</div><div class="ttdoc">Assuming we've just sent SYN or SYN_ACK, sets up an asynchronous scheduled task to fire within some a...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l04329">peer_socket.cpp:4329</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac397d3fd163f1456b7bb370a3cff951c"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac397d3fd163f1456b7bb370a3cff951c">flow::net_flow::Node::sock_rcv_wnd</a></div><div class="ttdeci">size_t sock_rcv_wnd(Peer_socket::Const_ptr sock) const</div><div class="ttdoc">Computes and returns the currently correct rcv_wnd value; that is the amount of space free in Receive...</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05524">peer_socket.cpp:5524</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ac3c67514c259404de3f27a8cae8b0567"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ac3c67514c259404de3f27a8cae8b0567">flow::net_flow::Node::accept</a></div><div class="ttdeci">Peer_socket::Ptr accept(Server_socket::Ptr serv, Error_code *err_code)</div><div class="ttdoc">Implementation of non-blocking serv-&gt;accept() for server socket serv in all cases except when serv-&gt;s...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00300">server_socket.cpp:300</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad502e0a992a79b71af42a9cdc20a4280"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">flow::net_flow::Node::sock_set_state</a></div><div class="ttdeci">void sock_set_state(Peer_socket::Ptr sock, Peer_socket::State state, Peer_socket::Open_sub_state open_sub_state=Peer_socket::Open_sub_state::S_CONNECTED)</div><div class="ttdoc">Sets Peer_socket::m_state and Peer_socket::m_open_sub_state.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06112">peer_socket.cpp:6112</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ad502e0a992a79b71af42a9cdc20a4280"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ad502e0a992a79b71af42a9cdc20a4280">flow::net_flow::Node::sock_set_state</a></div><div class="ttdeci">void sock_set_state(Peer_socket::Ptr sock, Peer_socket::State state, Peer_socket::Open_sub_state open_sub_state=Peer_socket::Open_sub_state::S_CONNECTED)</div><div class="ttdoc">Sets Peer_socket::m_state and Peer_socket::m_open_sub_state.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l06118">peer_socket.cpp:6118</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ade08f0457943f803c23b55649139c0d3"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ade08f0457943f803c23b55649139c0d3">flow::net_flow::Node::m_opts</a></div><div class="ttdeci">Node_options m_opts</div><div class="ttdoc">This Node's global set of options.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03704">node.hpp:3704</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_adf6d71af81def2d030f0fef159c1b06d"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#adf6d71af81def2d030f0fef159c1b06d">flow::net_flow::Node::close_empty_server_immediately</a></div><div class="ttdeci">void close_empty_server_immediately(const flow_port_t local_port, Server_socket::Ptr serv, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">Handles the transition of the given server socket from S_LISTENING/S_CLOSING to S_CLOSED (including e...</div><div class="ttdef"><b>Definition:</b> <a href="server__socket_8cpp_source.html#l00364">server_socket.cpp:364</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_ae536f016607677a945ad42034a21e82a"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#ae536f016607677a945ad42034a21e82a">flow::net_flow::Node::m_rnd_security_tokens</a></div><div class="ttdeci">util::Rnd_gen_uniform_range&lt; Peer_socket::security_token_t &gt; m_rnd_security_tokens</div><div class="ttdoc">Random number generator for picking security tokens; seeded on time at Node construction and generate...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03786">node.hpp:3786</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_af5597a417d03e2bed87cd772ef5cef29"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#af5597a417d03e2bed87cd772ef5cef29">flow::net_flow::Node::m_task_engine</a></div><div class="ttdeci">util::Task_engine m_task_engine</div><div class="ttdoc">The main loop engine, functioning in the single-threaded-but-asynchronous callback-based &quot;reactor&quot; st...</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03739">node.hpp:3739</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afd6388a362531ada956a864fefff6011"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afd6388a362531ada956a864fefff6011">flow::net_flow::Node::m_ports</a></div><div class="ttdeci">Port_space m_ports</div><div class="ttdoc">Flow port space for both client and server sockets. All threads may access this.</div><div class="ttdef"><b>Definition:</b> <a href="node_8hpp_source.html#l03777">node.hpp:3777</a></div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afe70a0c32695e417e7a09e0ba773f151"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">flow::net_flow::Node::rst_and_close_connection_immediately</a></div><div class="ttdeci">void rst_and_close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">Asynchronously send RST to the other side of the given socket and close_connection_immediately().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05803">peer_socket.cpp:5803</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html_afe70a0c32695e417e7a09e0ba773f151"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html#afe70a0c32695e417e7a09e0ba773f151">flow::net_flow::Node::rst_and_close_connection_immediately</a></div><div class="ttdeci">void rst_and_close_connection_immediately(const Socket_id &amp;socket_id, Peer_socket::Ptr sock, const Error_code &amp;err_code, bool defer_delta_check)</div><div class="ttdoc">Asynchronously send RST to the other side of the given socket and close_connection_immediately().</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8cpp_source.html#l05809">peer_socket.cpp:5809</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6a9bb727c8982f24bcf978c10c2c7345a02dcbe46a8dfde95b9776744dacae189">flow::net_flow::Peer_socket::State::S_OPEN</a></div><div class="ttdeci">@ S_OPEN</div><div class="ttdoc">Future reads or writes may be possible. A socket in this state may be Writable or Readable.</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548a357459237df4b1f8f34e81ce43e2d8fe">flow::net_flow::Peer_socket::Open_sub_state::S_CONNECTED</a></div><div class="ttdeci">@ S_CONNECTED</div><div class="ttdoc">This Peer_socket was created through a passive connect (Node::accept() and the like) or an active con...</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a6f48d01d1269c9d4260d972baa40e548aae585d03fce4ac2011967830bf0ffbfb">flow::net_flow::Peer_socket::Open_sub_state::S_CONNECTING</a></div><div class="ttdeci">@ S_CONNECTING</div><div class="ttdoc">This Peer_socket was created through an active connect (Node::connect() and the like),...</div></div>
-<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a90abde8badaf451ba6ca615e9936d5df"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">flow::net_flow::Peer_socket::Lock_guard</a></div><div class="ttdeci">util::Lock_guard&lt; Mutex &gt; Lock_guard</div><div class="ttdoc">Short-hand for RAII lock guard of Mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00899">peer_socket.hpp:899</a></div></div>
+<div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a90abde8badaf451ba6ca615e9936d5df"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a90abde8badaf451ba6ca615e9936d5df">flow::net_flow::Peer_socket::Lock_guard</a></div><div class="ttdeci">util::Lock_guard&lt; Mutex &gt; Lock_guard</div><div class="ttdoc">Short-hand for RAII lock guard of Mutex.</div><div class="ttdef"><b>Definition:</b> <a href="peer__socket_8hpp_source.html#l00900">peer_socket.hpp:900</a></div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Peer__socket_html_a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202"><div class="ttname"><a href="classflow_1_1net__flow_1_1Peer__socket.html#a9537860c2c2a7380a45a525e5121880fa16fdfce85d7bca9386378acd29eb7202">flow::net_flow::Peer_socket::Int_state::S_ESTABLISHED</a></div><div class="ttdeci">@ S_ESTABLISHED</div><div class="ttdoc">Public state is OPEN+CONNECTED; in our opinion the connection is established.</div></div>
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@@ -1096,12 +1096,12 @@
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_a079d8cd87a68d1c5f04c6bce71f0061d"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#a079d8cd87a68d1c5f04c6bce71f0061d">flow::net_flow::flow_port_t</a></div><div class="ttdeci">uint16_t flow_port_t</div><div class="ttdoc">Logical Flow port type (analogous to a UDP/TCP port in spirit but in no way relevant to UDP/TCP).</div><div class="ttdef"><b>Definition:</b> <a href="net__flow__fwd_8hpp_source.html#l00054">net_flow_fwd.hpp:54</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_a9dd0c9d8de00fab78d8b0a3f50dad2a9"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#a9dd0c9d8de00fab78d8b0a3f50dad2a9">flow::net_flow::S_PORT_ANY</a></div><div class="ttdeci">const flow_port_t S_PORT_ANY</div><div class="ttdoc">Special Flow port value used to indicate &quot;invalid port&quot; or &quot;please pick a random available ephemeral ...</div><div class="ttdef"><b>Definition:</b> <a href="port__space_8cpp_source.html#l00033">port_space.cpp:33</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1net__flow_html_ab9f537c84f77e9b8fa742fc5dc6d5693"><div class="ttname"><a href="namespaceflow_1_1net__flow.html#ab9f537c84f77e9b8fa742fc5dc6d5693">flow::net_flow::operator&lt;&lt;</a></div><div class="ttdeci">std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const Congestion_control_selector::Strategy_choice &amp;strategy_choice)</div><div class="ttdoc">Serializes a Peer_socket_options::Congestion_control_strategy_choice enum to a standard ostream – the...</div><div class="ttdef"><b>Definition:</b> <a href="cong__ctl_8cpp_source.html#l00146">cong_ctl.cpp:146</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a03984e29450abf9cf287c501d6c8f866"><div class="ttname"><a href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">flow::util::key_exists</a></div><div class="ttdeci">bool key_exists(const Container &amp;container, const typename Container::key_type &amp;key)</div><div class="ttdoc">Returns true if and only if the given key is present at least once in the given associative container...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00276">util.hpp:276</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a03984e29450abf9cf287c501d6c8f866"><div class="ttname"><a href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">flow::util::key_exists</a></div><div class="ttdeci">bool key_exists(const Container &amp;container, const typename Container::key_type &amp;key)</div><div class="ttdoc">Returns true if and only if the given key is present at least once in the given associative container...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00301">util.hpp:301</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af09888b3a8feaff209b6625e493bc338"><div class="ttname"><a href="namespaceflow_1_1util.html#af09888b3a8feaff209b6625e493bc338">flow::util::Blob</a></div><div class="ttdeci">Blob_with_log_context&lt;&gt; Blob</div><div class="ttdoc">A concrete Blob_with_log_context that compile-time-disables Basic_blob::share() and the sharing API d...</div><div class="ttdef"><b>Definition:</b> <a href="blob__fwd_8hpp_source.html#l00060">blob_fwd.hpp:60</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af1b28edb7bad743c1c77f6b982cc3196"><div class="ttname"><a href="namespaceflow_1_1util.html#af1b28edb7bad743c1c77f6b982cc3196">flow::util::Udp_endpoint</a></div><div class="ttdeci">boost::asio::ip::udp::endpoint Udp_endpoint</div><div class="ttdoc">Short-hand for the UDP endpoint (IP/port) type.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00208">util_fwd.hpp:208</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00503">common.hpp:503</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00508">common.hpp:508</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/server__socket_8hpp_source.html b/doc/flow_doc/generated/html_full/server__socket_8hpp_source.html
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 <div class="ttc" id="anamespaceflow_1_1util_html_a5488415feb5570a6551892a7bdfeeec4"><div class="ttname"><a href="namespaceflow_1_1util.html#a5488415feb5570a6551892a7bdfeeec4">flow::util::chrono_duration_from_now_to_fine_time_pt</a></div><div class="ttdeci">Fine_time_pt chrono_duration_from_now_to_fine_time_pt(const boost::chrono::duration&lt; Rep, Period &gt; &amp;dur)</div><div class="ttdoc">Helper that takes a non-negative duration of arbitrary precision/period and converts it to Fine_durat...</div><div class="ttdef"><b>Definition:</b> <a href="util_2detail_2util_8hpp_source.html#l00042">util.hpp:42</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a5d2247b715da63e4b960909561b90ae7"><div class="ttname"><a href="namespaceflow_1_1util.html#a5d2247b715da63e4b960909561b90ae7">flow::util::Lock_guard</a></div><div class="ttdeci">boost::unique_lock&lt; Mutex &gt; Lock_guard</div><div class="ttdoc">Short-hand for advanced-capability RAII lock guard for any mutex, ensuring exclusive ownership of tha...</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00265">util_fwd.hpp:265</a></div></div>
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/shared__ptr__alias__holder_8hpp.html b/doc/flow_doc/generated/html_full/shared__ptr__alias__holder_8hpp.html
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+++ b/doc/flow_doc/generated/html_full/shared__ptr__alias__holder_8hpp.html
@@ -95,7 +95,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/shared__ptr__alias__holder_8hpp_source.html b/doc/flow_doc/generated/html_full/shared__ptr__alias__holder_8hpp_source.html
index 42a391962..7a6bda706 100644
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@@ -301,7 +301,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/simple__ostream__logger_8cpp.html b/doc/flow_doc/generated/html_full/simple__ostream__logger_8cpp.html
index 6884817ce..deac79f3d 100644
--- a/doc/flow_doc/generated/html_full/simple__ostream__logger_8cpp.html
+++ b/doc/flow_doc/generated/html_full/simple__ostream__logger_8cpp.html
@@ -89,7 +89,7 @@
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 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/simple__ostream__logger_8cpp_source.html b/doc/flow_doc/generated/html_full/simple__ostream__logger_8cpp_source.html
index 69fc90c65..2bf1178e0 100644
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@@ -170,7 +170,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/simple__ostream__logger_8hpp.html b/doc/flow_doc/generated/html_full/simple__ostream__logger_8hpp.html
index 239f169c3..a5001d0c7 100644
--- a/doc/flow_doc/generated/html_full/simple__ostream__logger_8hpp.html
+++ b/doc/flow_doc/generated/html_full/simple__ostream__logger_8hpp.html
@@ -99,7 +99,7 @@
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 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/simple__ostream__logger_8hpp_source.html b/doc/flow_doc/generated/html_full/simple__ostream__logger_8hpp_source.html
index b60274d6a..a3abf46f2 100644
--- a/doc/flow_doc/generated/html_full/simple__ostream__logger_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/simple__ostream__logger_8hpp_source.html
@@ -271,7 +271,7 @@
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/single__thread__task__loop_8cpp.html b/doc/flow_doc/generated/html_full/single__thread__task__loop_8cpp.html
index b94087ea9..843657f9e 100644
--- a/doc/flow_doc/generated/html_full/single__thread__task__loop_8cpp.html
+++ b/doc/flow_doc/generated/html_full/single__thread__task__loop_8cpp.html
@@ -88,7 +88,7 @@
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/single__thread__task__loop_8cpp_source.html b/doc/flow_doc/generated/html_full/single__thread__task__loop_8cpp_source.html
index 00c26ef22..b8e2501c2 100644
--- a/doc/flow_doc/generated/html_full/single__thread__task__loop_8cpp_source.html
+++ b/doc/flow_doc/generated/html_full/single__thread__task__loop_8cpp_source.html
@@ -192,7 +192,7 @@
 <div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>}</div>
 <div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span> </div>
 <div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>} <span class="comment">// namespace flow::async</span></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1async_1_1Concurrent__task__loop_html"><div class="ttname"><a href="classflow_1_1async_1_1Concurrent__task__loop.html">flow::async::Concurrent_task_loop</a></div><div class="ttdoc">The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...</div><div class="ttdef"><b>Definition:</b> <a href="concurrent__task__loop_8hpp_source.html#l00322">concurrent_task_loop.hpp:324</a></div></div>
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@@ -234,14 +234,14 @@
 <div class="ttc" id="anamespaceflow_1_1perf_html_ad61fb186191e4bb824d14601d11a2eb0"><div class="ttname"><a href="namespaceflow_1_1perf.html#ad61fb186191e4bb824d14601d11a2eb0">flow::perf::Clock_type</a></div><div class="ttdeci">Clock_type</div><div class="ttdoc">Clock types supported by flow::perf module facilities, perf::Checkpointing_timer in particular.</div><div class="ttdef"><b>Definition:</b> <a href="clock__type__fwd_8hpp_source.html#l00066">clock_type_fwd.hpp:67</a></div></div>
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-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
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 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/single__thread__task__loop_8hpp.html b/doc/flow_doc/generated/html_full/single__thread__task__loop_8hpp.html
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@@ -102,7 +102,7 @@
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/single__thread__task__loop_8hpp_source.html b/doc/flow_doc/generated/html_full/single__thread__task__loop_8hpp_source.html
index 62bd33d89..81203e39e 100644
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 <div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span> </div>
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-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
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 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 </html>
diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet.html
index 44f5da396..678928e6d 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet.html
@@ -306,7 +306,7 @@
 <p >The mechanics of individual acks are further explored in the doc header for <a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html" title="Specifies the incoming (post-deserialization) acknowledgment of a single received Data_packet.">Ack_packet::Individual_ack</a> nested <code>struct</code>.</p>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000067">Todo:</a></b></dt><dd>Conceivably, since <a class="el" href="structflow_1_1net__flow_1_1Ack__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.">Ack_packet</a> actually stores 1+ acknowledgments, it should become Acks_packet, of type ACKS (not ACK). Many comments and log messages would become clearer, as no one would assume an individual packet's acknowledgment when reading "an ACK" or similar phrase. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01019">1019</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01020">1020</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 </div><h2 class="groupheader">Member Typedef Documentation</h2>
 <a id="a374da5eef60c7d8a4085b41cf7b2adfe" name="a374da5eef60c7d8a4085b41cf7b2adfe"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#a374da5eef60c7d8a4085b41cf7b2adfe">&#9670;&nbsp;</a></span>ack_delay_t</h2>
@@ -325,7 +325,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a374da5eef60c7d8a4085b41c
 <p >An earlier version of <code><a class="el" href="namespaceflow_1_1net__flow.html" title="Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...">net_flow</a></code> used the unit milliseconds and the encoding type uint16_t. The reasoning was that this allowed a maximum ACK delay of ~65 sec which should be plenty; and that the 1-millisecond finegrainedness was acceptable. However when implementing queue delay-based congestion control (like FAST or Vegas) we realized it is important for RTTs (which use the ACK delay value) to be quite precise (microsecond level or so). Therefore, to be totally safe, we choose to use the same units as <a class="el" href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79" title="A high-res time duration as computed from two Fine_time_pts.">Fine_duration</a>, which is how we compute all time periods. As for the the encoding width, we use 64 bits just in case.</p>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000071">Todo:</a></b></dt><dd>Reconsider the encoding width. If <code>Ack_delay_time_unit(1)</code> is a nanosecond, then 32 bits would support a maximum delay of ~4.1 seconds which is likely fine for most real-world scenarios. This would reduce the size of ACK packets quite a bit. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01039">1039</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01040">1040</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
 </div>
@@ -343,7 +343,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#abd3bc7f9e9195bf1b4aca2ca
 
 <p><code>Ack_delay_time_unit(1)</code> is the duration corresponding to the <a class="el" href="structflow_1_1net__flow_1_1Ack__packet.html#a374da5eef60c7d8a4085b41cf7b2adfe" title="Type used to store the ACK delay for a given individual acknowledged packet.">ack_delay_t</a> value 1; and proportionally further. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01042">1042</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01043">1043</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
 </div>
@@ -441,7 +441,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a5af95ad4de8253b613d55a99
 
 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00785">785</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00222">flow::net_flow::Low_lvl_packet::m_opt_rexmit_on</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l01115">m_rcv_acked_packets</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l01062">m_rcv_acked_packets_rexmit_out_size</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l01051">m_rcv_wnd</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00245">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a>, <a class="el" href="seq__num_8cpp_source.html#l00268">flow::net_flow::Sequence_number::set_metadata()</a>, and <a class="el" href="seq__num_8cpp_source.html#l00263">flow::net_flow::Sequence_number::set_raw_num()</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00223">flow::net_flow::Low_lvl_packet::m_opt_rexmit_on</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l01116">m_rcv_acked_packets</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l01063">m_rcv_acked_packets_rexmit_out_size</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l01052">m_rcv_wnd</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00246">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a>, <a class="el" href="seq__num_8cpp_source.html#l00268">flow::net_flow::Sequence_number::set_metadata()</a>, and <a class="el" href="seq__num_8cpp_source.html#l00263">flow::net_flow::Sequence_number::set_raw_num()</a>.</p>
 <div class="dynheader">
 Here is the call graph for this function:</div>
 <div class="dyncontent">
@@ -573,7 +573,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a232e22e04614ead19fa4531a
 <p >Any two packets represented by these <code><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html" title="Specifies the incoming (post-deserialization) acknowledgment of a single received Data_packet.">Individual_ack</a></code>s may be duplicates of each other (same <a class="el" href="classflow_1_1net__flow_1_1Sequence__number.html" title="An internal net_flow sequence number identifying a piece of data.">Sequence_number</a>, possibly different delay values). It's up to the sender (receiver of ACK) to sort it out. However, again, they MUST be ordered chronologicaly based on the time when they were received; from earliest to latest.</p>
 <p >Storing shared pointers to avoid copying of <code>struct</code>s (however small) during internal reshuffling; shared instead of raw pointers to not worry about <code>delete</code>. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01115">1115</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01116">1116</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00785">deserialize_type_specific_data_from_raw_data_packet()</a>.</p>
 
@@ -595,7 +595,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aebad844e9061da02db8f1683
 <p >See notes in <a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html" title="Specifies the outgoing (pre-serialization) acknowledgment of a single received Data_packet,...">Individual_ack_rexmit_off</a> doc header about how this is used for efficient serialization of <a class="el" href="structflow_1_1net__flow_1_1Ack__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.">Ack_packet</a>.</p>
 <p >This is used if and only if <a class="el" href="structflow_1_1net__flow_1_1Ack__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.">Ack_packet</a> is outgoing, and retransmission is disabled. See <a class="el" href="structflow_1_1net__flow_1_1Ack__packet.html#a232e22e04614ead19fa4531a89838015" title="List of incoming (post-deserialization of ACK) acknowledgments of DATA packets, each identified by it...">m_rcv_acked_packets</a> for the incoming scenario. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01125">1125</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01126">1126</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
 </div>
@@ -613,7 +613,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#abfcb97c4f3f8552c619b6aba
 
 <p>Equivalent of <a class="el" href="structflow_1_1net__flow_1_1Ack__packet.html#aebad844e9061da02db8f168374869f9e" title="Equivalent of m_rcv_acked_packets but used for outgoing (pre-serialization of ACK) acknowledgments an...">m_rcv_acked_packets_rexmit_off_out</a> but for retransmission enabled. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01128">1128</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01129">1129</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
 </div>
@@ -640,7 +640,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aae3806ebf76e628494fd6f76
 <p>This is the serialized version of <code>m_rcv_acked_packets_rexmit_{on|off}_out.size()</code> and <code>m_rcv_acked_packets.size()</code> (whichever is applicable in context). </p>
 <p >We send this value, even though it could be figured out from the overall serialized size, to ensure integrity (see the deserialization logic for details). This here is set to <code>size()</code>, when <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76" title="Serializes the current logical packet data from *this into the given Const_buffer_sequence,...">Low_lvl_packet::serialize_to_raw_data()</a> needs to serialize that value. Outside serialization <code>size()</code> is used directly, and this value is meaningless. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01062">1062</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01063">1063</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00785">deserialize_type_specific_data_from_raw_data_packet()</a>.</p>
 
@@ -660,7 +660,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a56b2560b87540a3cf5c7bba9
 
 <p>Current receive window (remaining Receive buffer size) of the ACK sender. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01051">1051</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01052">1052</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00785">deserialize_type_specific_data_from_raw_data_packet()</a>.</p>
 
@@ -688,7 +688,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aa57707612db973cb99a12ef8
 
 <p>In serialized packet, the type ID byte identifying this as an ACK packet. Must not equal any other packet type's. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01131">1131</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01132">1132</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
 </div>
@@ -699,7 +699,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aa57707612db973cb99a12ef8
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
 </body>
 </html>
diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack-members.html
index 448cb02c1..6c36fa00b 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack-members.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack-members.html
@@ -74,17 +74,15 @@
 <p>This is the complete list of members for <a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a>, including all inherited members.</p>
 <table class="directory">
   <tr class="even"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a55bebcb04b4cc192e38023e58bfd761c">Const_ptr</a> typedef</td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></td><td class="entry"></td></tr>
-  <tr class="odd"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1cfc30a36e8b572f3cedaf045b05f448">Individual_ack</a>()=delete</td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></td><td class="entry"></td></tr>
-  <tr class="even"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae557559e4c611fafc3d43a19fb161316">Individual_ack</a>(const Individual_ack &amp;)=delete</td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></td><td class="entry"></td></tr>
   <tr class="odd"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a6027b17d0ef0aa619c4dedb42d74e1a6">m_delay</a></td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></td><td class="entry"></td></tr>
-  <tr class="even"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae17b658ee88e60bdb6606af607b00de2">m_rexmit_id</a></td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></td><td class="entry"></td></tr>
-  <tr class="odd"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1d027f817b86cc377d76bc38434229a4">m_seq_num</a></td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></td><td class="entry"></td></tr>
-  <tr class="even"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a3fc4ecbc56e28b299a4bd70325d313a0">operator=</a>(const Individual_ack &amp;)=delete</td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a589654d5b07e021e82fa80455863f548">m_nc</a></td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae17b658ee88e60bdb6606af607b00de2">m_rexmit_id</a></td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1d027f817b86cc377d76bc38434229a4">m_seq_num</a></td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></td><td class="entry"></td></tr>
   <tr class="odd"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#abbd41e30089125f67667b39f5756c275">Ptr</a> typedef</td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html">flow::net_flow::Ack_packet::Individual_ack</a></td><td class="entry"></td></tr>
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
 </body>
 </html>
diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html
index 8b8e1fe29..a1109b37c 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html
@@ -69,7 +69,6 @@
 <div class="header">
   <div class="summary">
 <a href="#pub-types">Public Types</a> &#124;
-<a href="#pub-methods">Public Member Functions</a> &#124;
 <a href="#pub-attribs">Public Attributes</a> &#124;
 <a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack-members.html">List of all members</a>  </div>
   <div class="headertitle"><div class="title">flow::net_flow::Ack_packet::Individual_ack Struct Reference</div></div>
@@ -83,7 +82,7 @@
 <div class="dynheader">
 Collaboration diagram for flow::net_flow::Ack_packet::Individual_ack:</div>
 <div class="dyncontent">
-<div class="center"><iframe scrolling="no" frameborder="0" src="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__coll__graph.svg" width="555" height="239"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe>
+<div class="center"><iframe scrolling="no" frameborder="0" src="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__coll__graph.svg" width="652" height="235"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe>
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 <center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
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@@ -96,21 +95,6 @@
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+<tr class="memdesc:a589654d5b07e021e82fa80455863f548"><td class="mdescLeft">&#160;</td><td class="mdescRight">Make us noncopyable without breaking aggregateness (direct-init).  <a href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a589654d5b07e021e82fa80455863f548">More...</a><br /></td></tr>
+<tr class="separator:a589654d5b07e021e82fa80455863f548"><td class="memSeparator" colspan="2">&#160;</td></tr>
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 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
 <div class="textblock"><p >Specifies the <em>incoming</em> (post-deserialization) acknowledgment of a single received <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level DATA packet.">Data_packet</a>. </p>
 <p >It is not copyable, and moving them around by smart <a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#abbd41e30089125f67667b39f5756c275" title="Short-hand for ref-counted pointer to mutable objects of this class.">Individual_ack::Ptr</a> is encouraged. Construct this by direct member initialization. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01194">1194</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01195">1195</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
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-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01203">1203</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01204">1204</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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 <p>Short-hand for ref-counted pointer to mutable objects of this class. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01200">1200</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01201">1201</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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 <p>The delay between when we received the acknowledged packet and when decided to send this ack. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01214">1214</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01215">1215</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+
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+<a id="a589654d5b07e021e82fa80455863f548" name="a589654d5b07e021e82fa80455863f548"></a>
+<h2 class="memtitle"><span class="permalink"><a href="#a589654d5b07e021e82fa80455863f548">&#9670;&nbsp;</a></span>m_nc</h2>
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+      <table class="memname">
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+          <td class="memname"><a class="el" href="structflow_1_1util_1_1Noncopyable.html">util::Noncopyable</a> flow::net_flow::Ack_packet::Individual_ack::m_nc {}</td>
+        </tr>
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+</div><div class="memdoc">
+
+<p>Make us noncopyable without breaking aggregateness (direct-init). </p>
+
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01225">1225</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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 <p >Identifies which attempt we are acknowledging (0 = initial, 1 = first retransmit, 2 = second retransmit, ...). Literally this equals the acked <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html#ac149f87b8915213857c707b0f3562ef0" title="Retransmit counter of the DATA packet being sent.">Data_packet::m_rexmit_id</a>. Always 0 if retransmission is disabled for the given socket. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01221">1221</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01222">1222</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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-<text text-anchor="middle" x="155" y="-124.1" font-family="Helvetica,sans-Serif" font-size="8.00"> m_num_line_id</text>
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+<polygon fill="#9a32cd" stroke="#9a32cd" points="52.63,-118.5 42.63,-122 52.63,-125.5 52.63,-118.5"/>
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-<text text-anchor="middle" x="233.5" y="-124.1" font-family="Helvetica,sans-Serif" font-size="8.00"> m_multiple_size</text>
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+<polygon fill="white" stroke="#bfbfbf" points="174,-72.5 174,-89.5 270,-89.5 270,-72.5 174,-72.5"/>
+<text text-anchor="middle" x="222" y="-79.1" font-family="Helvetica,sans-Serif" font-size="8.00">const Fine_duration</text>
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-<text text-anchor="middle" x="268.5" y="-47.6" font-family="Helvetica,sans-Serif" font-size="8.00"> m_delay</text>
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+<polygon fill="#9a32cd" stroke="#9a32cd" points="279.77,-72.4 270.13,-76.78 280.4,-79.37 279.77,-72.4"/>
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+<polygon fill="white" stroke="#bfbfbf" points="176,-36.5 176,-53.5 268,-53.5 268,-36.5 176,-36.5"/>
+<text text-anchor="middle" x="222" y="-43.1" font-family="Helvetica,sans-Serif" font-size="8.00">const unsigned int</text>
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-<text text-anchor="middle" x="337" y="-47.6" font-family="Helvetica,sans-Serif" font-size="8.00"> m_rexmit_id</text>
+<path fill="none" stroke="#9a32cd" stroke-dasharray="5,2" d="M278.18,-49.94C306.33,-52.46 340.48,-55.52 368.65,-58.04"/>
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+<text text-anchor="middle" x="325.5" y="-59.6" font-family="Helvetica,sans-Serif" font-size="8.00"> m_rexmit_id</text>
+</g>
+<!-- Node8 -->
+<g id="node8" class="node">
+<title>Node8</title>
+<g id="a_node8"><a xlink:href="structflow_1_1util_1_1Noncopyable.html" target="_top" xlink:title="Useful as a no&#45;unique&#45;address private member to make a type noncopyable while keeping that type an ag...">
+<polygon fill="white" stroke="black" points="166,-0.5 166,-17.5 278,-17.5 278,-0.5 166,-0.5"/>
+<text text-anchor="middle" x="222" y="-7.1" font-family="Helvetica,sans-Serif" font-size="8.00">flow::util::Noncopyable</text>
+</a>
+</g>
+</g>
+<!-- Node8&#45;&gt;Node1 -->
+<g id="edge7" class="edge">
+<title>Node8&#45;&gt;Node1</title>
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off-members.html
index 3dd98ec17..d72e585ea 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off-members.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off-members.html
@@ -79,7 +79,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
 </body>
 </html>
diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html
index 3cc65a1e9..59af29d2c 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html
@@ -106,7 +106,7 @@
 <p >Assuming network byte order equals native byte order, and given that tight <code>struct</code> field packing is enabled throughout this code, one can arrange a tight array of these <code>struct</code>s and transmit that entire array over the network with no need for scatter/gather or any additional transformation of data post-construction and pushing onto aforementioned array. These are copy-constructible, for pushing onto containers and such, but not assignable to avoid unnecessary copying. Update: A later version of clang does not like this technique and warns about it; to avoid any such trouble just forget the non-assignability stuff; it's internal code; we should be fine.</p>
 <dl class="section see"><dt>See also</dt><dd>Historical note in <a class="el" href="structflow_1_1net__flow_1_1Ack__packet.html#a878162c8ec16ab4ee1b3ea4bbe4b51c0" title="Implements Low_lvl_packet API.">Ack_packet::serialize_to_raw_data()</a> explains why this and <a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html" title="Equivalent of Individual_ack_rexmit_off but for sockets with retransmission enabled.">Individual_ack_rexmit_on</a> both exist, instead of simply using <a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html" title="Specifies the incoming (post-deserialization) acknowledgment of a single received Data_packet.">Individual_ack</a> in both directions. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01253">1253</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01250">1250</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
 <a id="ab8f16251d8bd583cf6ad114a56b10463" name="ab8f16251d8bd583cf6ad114a56b10463"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#ab8f16251d8bd583cf6ad114a56b10463">&#9670;&nbsp;</a></span>Individual_ack_rexmit_off()</h2>
@@ -170,7 +170,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a9e2f29fb25f50cfb98779eba
 
 <p>See <a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a6027b17d0ef0aa619c4dedb42d74e1a6" title="The delay between when we received the acknowledged packet and when decided to send this ack.">Individual_ack::m_delay</a>; this is in <code>Ack_delay_time_unit(1)</code> multiples. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01261">1261</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01258">1258</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
 </div>
@@ -188,7 +188,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a8952017a9b9267971a8d79ea
 
 <p>See <a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#a1d027f817b86cc377d76bc38434229a4" title="Sequence number of first datum in packet that we acknowledge.">Individual_ack::m_seq_num</a> and <a class="el" href="classflow_1_1net__flow_1_1Sequence__number.html#ac18fe030885b2ed3dfa290d8eec8c501" title="Provides the raw sequence number.">Sequence_number::raw_num_ref()</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01258">1258</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01255">1255</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
 </div>
@@ -199,7 +199,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a8952017a9b9267971a8d79ea
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
 </body>
 </html>
diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on-members.html
index fb217d369..f7370b2b4 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on-members.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on-members.html
@@ -79,7 +79,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
 </body>
 </html>
diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html
index 4a819098c..06977ea14 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html
@@ -104,7 +104,7 @@
 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
 <div class="textblock"><p >Equivalent of <code><a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html" title="Specifies the outgoing (pre-serialization) acknowledgment of a single received Data_packet,...">Individual_ack_rexmit_off</a></code> but for sockets with retransmission enabled. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01285">1285</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01282">1282</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
 <a id="ac75ea2d2954f67520dd4ed4c800c06c8" name="ac75ea2d2954f67520dd4ed4c800c06c8"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#ac75ea2d2954f67520dd4ed4c800c06c8">&#9670;&nbsp;</a></span>Individual_ack_rexmit_on()</h2>
@@ -175,7 +175,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ac0ea55d7d5847c4e892ef0e5
 
 <p>Stores the values applicable to both <a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__off.html" title="Specifies the outgoing (pre-serialization) acknowledgment of a single received Data_packet,...">Individual_ack_rexmit_off</a> and <a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack__rexmit__on.html" title="Equivalent of Individual_ack_rexmit_off but for sockets with retransmission enabled.">Individual_ack_rexmit_on</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01290">1290</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01287">1287</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
 </div>
@@ -193,7 +193,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a0324b8de1d20023e10507d52
 
 <p>See <a class="el" href="structflow_1_1net__flow_1_1Ack__packet_1_1Individual__ack.html#ae17b658ee88e60bdb6606af607b00de2" title="Retransmit counter of the acknowledged Data_packet.">Individual_ack::m_rexmit_id</a> but note the type difference. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01293">1293</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01290">1290</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
 </div>
@@ -204,7 +204,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a0324b8de1d20023e10507d52
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
 </body>
 </html>
diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Data__packet-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Data__packet-members.html
index 6be4ef4c1..fd69b9b6f 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Data__packet-members.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Data__packet-members.html
@@ -128,7 +128,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
 </body>
 </html>
diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Data__packet.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Data__packet.html
index 49fd87780..becbd0da3 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Data__packet.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Data__packet.html
@@ -285,7 +285,7 @@
 <p >See <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a> doc header for information common to all low-level packets including this one.</p>
 <p >Each DATA packet contains actual data payload packetized from the application-provided stream of bytes. It is identified by the sequence number (encoded in this object) of the first byte of that payload. An individual acknowledgment inside an <a class="el" href="structflow_1_1net__flow_1_1Ack__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level ACK packet.">Ack_packet</a> refers to the <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level DATA packet.">Data_packet</a> by that first sequence number. If <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#acc2a10d19e8e54c88518ad2e02a08b68" title="Option indicating whether this connection is using retransmission or not.">Low_lvl_packet::m_opt_rexmit_on</a> is <code>true</code>, then <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html#ac149f87b8915213857c707b0f3562ef0" title="Retransmit counter of the DATA packet being sent.">m_rexmit_id</a> identifies which attempt at sending the payload with this sequence number and payload this packet represents: 0 is 1st attempt, 1 is 1st retry, 2 is 2nd retry, etc. If that option is off, then a lost packet is never retransmitted; and therefore <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html#ac149f87b8915213857c707b0f3562ef0" title="Retransmit counter of the DATA packet being sent.">m_rexmit_id</a> is always 0. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00892">892</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00893">893</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 </div><h2 class="groupheader">Member Typedef Documentation</h2>
 <a id="abba220658ada68bae04c9c2ebd06f72c" name="abba220658ada68bae04c9c2ebd06f72c"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#abba220658ada68bae04c9c2ebd06f72c">&#9670;&nbsp;</a></span>rexmit_id_t</h2>
@@ -302,7 +302,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#abba220658ada68bae04c9c2e
 <p>Type used to store the retransmission count in DATA and ACK packets. </p>
 <p >Why 8 bits? This handles up 255 retransmissions, which is long after we'd kill the connection anyway. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00902">902</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00903">903</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
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@@ -400,7 +400,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ac2a390c4cb7abfeec7c658c8
 
 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00655">655</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00933">m_data</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00925">m_data_size_raw</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00222">flow::net_flow::Low_lvl_packet::m_opt_rexmit_on</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00916">m_rexmit_id</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00910">m_seq_num</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00245">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a>, <a class="el" href="seq__num_8cpp_source.html#l00268">flow::net_flow::Sequence_number::set_metadata()</a>, and <a class="el" href="seq__num_8cpp_source.html#l00263">flow::net_flow::Sequence_number::set_raw_num()</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00934">m_data</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00926">m_data_size_raw</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00223">flow::net_flow::Low_lvl_packet::m_opt_rexmit_on</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00917">m_rexmit_id</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00911">m_seq_num</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00246">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a>, <a class="el" href="seq__num_8cpp_source.html#l00268">flow::net_flow::Sequence_number::set_metadata()</a>, and <a class="el" href="seq__num_8cpp_source.html#l00263">flow::net_flow::Sequence_number::set_raw_num()</a>.</p>
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@@ -499,7 +499,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a0bfa19b23164c8189c05d3c2
 
 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00968">968</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00388">flow::util::buffers_to_ostream()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00912">flow::net_flow::Low_lvl_packet::to_ostream()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00413">flow::util::buffers_to_ostream()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00912">flow::net_flow::Low_lvl_packet::to_ostream()</a>.</p>
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@@ -526,7 +526,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad76ae289cd958d62bb5cd29b
 <p >Cannot be <code>empty()</code>.</p>
 <p >As of this writing there is an important (for performance) subtlety about how this is originally filled in when deserializing a wire-arrived packet. See <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html#ac2a390c4cb7abfeec7c658c866dbfc06" title="Implements Low_lvl_packet API.">Data_packet::deserialize_type_specific_data_from_raw_data_packet()</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00933">933</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00934">934</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00655">deserialize_type_specific_data_from_raw_data_packet()</a>.</p>
 
@@ -555,7 +555,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a07cf37a89d947f40354a79a8
 <p>This is the serialized version of <code>m_data.size()</code> (see <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d" title="The payload.">m_data</a>). </p>
 <p >We send this value, even though it could be figured out from the overall serialized size, to ensure integrity (see the deserialization logic for details). This here is set to <code>m_data.size()</code>, when <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76" title="Serializes the current logical packet data from *this into the given Const_buffer_sequence,...">Low_lvl_packet::serialize_to_raw_data()</a> needs to serialize that value. Outside serialization <code>m_data.size()</code> is used directly, and this value is meaningless. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00925">925</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00926">926</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00655">deserialize_type_specific_data_from_raw_data_packet()</a>.</p>
 
@@ -576,7 +576,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ac149f87b8915213857c707b0
 <p>Retransmit counter of the DATA packet being sent. </p>
 <p >Identifies which attempt we are acknowledging (0 = initial, 1 = first retransmit, 2 = second retransmit, ...). Always 0 if <code>!m_opt_rexmit_on</code>. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00916">916</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00917">917</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00655">deserialize_type_specific_data_from_raw_data_packet()</a>.</p>
 
@@ -597,7 +597,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a94d817529e94ac88ee2cea6f
 <p>The sequence number of the first byte in the payload; i.e., of <code>m_data.front()</code>, a/k/a <code>m_data[0]</code>. </p>
 <p >Note that <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d" title="The payload.">m_data</a> cannot be empty, so <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html#a94d817529e94ac88ee2cea6f3dd1badb" title="The sequence number of the first byte in the payload; i.e., of m_data.front(), a/k/a m_data[0].">m_seq_num</a> is always meaningful. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00910">910</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00911">911</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00655">deserialize_type_specific_data_from_raw_data_packet()</a>.</p>
 
@@ -625,7 +625,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a463336b35dde27c250b477ca
 
 <p>In serialized packet, the type ID byte identifying this as a DATA packet. Must not equal any other packet type's. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00944">944</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00945">945</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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@@ -636,7 +636,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a463336b35dde27c250b477ca
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet-members.html
index 95b006b8a..ad41e32e9 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet-members.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet-members.html
@@ -121,7 +121,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet.html
index 120ac239f..6ce735386 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet.html
@@ -318,7 +318,7 @@ <h3>Packed structures, stored integers, and alignment</h3>
 <p >Some effort is made to keep fields aligned along word edges when serializing. There is not too much of that as of this writing, but we should remain vigilant as packet formats become more complex over time.</p>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000066">Todo:</a></b></dt><dd>With C++11, some lines of code could be eliminated by using <code>using</code> for <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a> sub-types to inherit the constructor(s) of <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a>. (For some of the sub-types an explicit constructor would still be necessary, but it would just shadow the inherited one, which is fine and still saves lines in the other sub-types.) However, for now I've left it as-is, partially to be friendly to the Doxygen documentation generator, and partially to make the interface easy to read. Still, it may be better the other way. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00164">164</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00165">165</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 </div><h2 class="groupheader">Member Typedef Documentation</h2>
 <a id="ab735867345855ad43e5e3ff788cf5a9a" name="ab735867345855ad43e5e3ff788cf5a9a"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#ab735867345855ad43e5e3ff788cf5a9a">&#9670;&nbsp;</a></span>Const_buffer</h2>
@@ -335,7 +335,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ab735867345855ad43e5e3ff7
 <p>Short-hand for boost.asio immutable buffer, which essentially is a pointer to and length of a memory area. </p>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000068">Todo:</a></b></dt><dd>Consider moving alias <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#ab735867345855ad43e5e3ff788cf5a9a" title="Short-hand for boost.asio immutable buffer, which essentially is a pointer to and length of a memory ...">Low_lvl_packet::Const_buffer</a> to <code>util</code> namespace or even outside it, as it is used commonly (or <code>boost::asio::const_buffer</code> is used where <code>Const_buffer</code> could be used for readability). </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00179">179</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00180">180</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
 </div>
@@ -354,7 +354,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a6e16e9c355c6d5e2acff5f9b
 <p>Short-hand for sequence of immutable buffers; i.e., a sequence of 1 or more scattered areas in memory. </p>
 <p >This is a model of the <code>ConstBufferSequence</code> model in boost.asio, which means a <code>const</code> reference to this can be passed to boost.asio scatter-gathering send functions such as <code>Udp_socket::async_send_to()</code>; the scattered buffers represented by an instance of this type will be, at high performance, gathered into a single UDP datagram and sent over the wire if possible. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00188">188</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00189">189</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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@@ -372,7 +372,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a01ff17bec742d9e363aea2ec
 
 <p>Type used to store the size of <code>m_rcv_wnd</code> member in a couple of different packet types. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00202">202</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00203">203</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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@@ -391,7 +391,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a11e7750d22415a381e231120
 <p>Type used to store the retransmission count in DATA and ACK packets. </p>
 <p >Why 8 bits? This handles up 255 retransmissions, which is long after we'd kill the connection anyway. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00199">199</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00200">200</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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@@ -409,7 +409,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a872044469cfa05a3abf3f9ab
 
 <p>Type used for <code>m_security_token</code> member of a couple different packet types. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00191">191</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00192">192</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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@@ -517,7 +517,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a186d7dae0c4b4402aed22a25
 
 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00381">381</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00481">flow::util::buffers_dump_string()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00405">FLOW_LOG_SET_CONTEXT</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00532">FLOW_LOG_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00571">m_aux_raw_data</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00447">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_opt_rexmit_on_raw</a>, <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a3e7152648c0098491512da590b47b464">m_packed</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00454">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_reserved2</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">flow::log::S_DATA</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>, <a class="el" href="classflow_1_1log_1_1Logger.html#ac8a2e7a33fe3fbc0c29ead62ed98c022">flow::log::Logger::should_log()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00119">type_id_native_to_raw()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00506">flow::util::buffers_dump_string()</a>, <a class="el" href="log_8hpp_source.html#l00242">FLOW_LOG_DATA</a>, <a class="el" href="log_8hpp_source.html#l00405">FLOW_LOG_SET_CONTEXT</a>, <a class="el" href="log_8hpp_source.html#l00227">FLOW_LOG_TRACE</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="log_8hpp_source.html#l00532">FLOW_LOG_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00572">m_aux_raw_data</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00448">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_opt_rexmit_on_raw</a>, <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a3e7152648c0098491512da590b47b464">m_packed</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00455">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_reserved2</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">flow::log::S_DATA</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>, <a class="el" href="classflow_1_1log_1_1Logger.html#ac8a2e7a33fe3fbc0c29ead62ed98c022">flow::log::Logger::should_log()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00119">type_id_native_to_raw()</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="node_8cpp_source.html#l00426">flow::net_flow::Node::handle_incoming()</a>.</p>
 <div class="dynheader">
@@ -567,7 +567,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a09f0f187521ec2275885d68b
 <div class="fragment"><div class="line">shared_ptr&lt;Ack_packet&gt; = <a class="code hl_function" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a09f0f187521ec2275885d68b7f6e734a">create_uninit_packet</a>(<a class="code hl_function" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">get_logger</a>());</div>
 <div class="line"><span class="comment">// ^-- Low_lvl_packet_sub was inferred to be Ack_packet based on the left hand side of the assignment.</span></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Log__context_html_af4db395042b065b00398cd59845dcb4d"><div class="ttname"><a href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d">flow::log::Log_context::get_logger</a></div><div class="ttdeci">Logger * get_logger() const</div><div class="ttdoc">Returns the stored Logger pointer, particularly as many FLOW_LOG_*() macros expect.</div><div class="ttdef"><b>Definition:</b> <a href="log_8cpp_source.html#l00225">log.cpp:225</a></div></div>
-<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a09f0f187521ec2275885d68b7f6e734a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a09f0f187521ec2275885d68b7f6e734a">flow::net_flow::Low_lvl_packet::create_uninit_packet</a></div><div class="ttdeci">static boost::shared_ptr&lt; Low_lvl_packet_sub &gt; create_uninit_packet(log::Logger *logger_ptr)</div><div class="ttdoc">Constructs packet with uninitialized (essentially random) values, of the Low_lvl_packet sub-type spec...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01388">low_lvl_packet.hpp:1388</a></div></div>
+<div class="ttc" id="astructflow_1_1net__flow_1_1Low__lvl__packet_html_a09f0f187521ec2275885d68b7f6e734a"><div class="ttname"><a href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a09f0f187521ec2275885d68b7f6e734a">flow::net_flow::Low_lvl_packet::create_uninit_packet</a></div><div class="ttdeci">static boost::shared_ptr&lt; Low_lvl_packet_sub &gt; create_uninit_packet(log::Logger *logger_ptr)</div><div class="ttdoc">Constructs packet with uninitialized (essentially random) values, of the Low_lvl_packet sub-type spec...</div><div class="ttdef"><b>Definition:</b> <a href="low__lvl__packet_8hpp_source.html#l01385">low_lvl_packet.hpp:1385</a></div></div>
 </div><!-- fragment --><dl class="tparams"><dt>Template Parameters</dt><dd>
   <table class="tparams">
     <tr><td class="paramname">Low_lvl_packet_sub</td><td>Any type deriving from <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a>. </td></tr>
@@ -582,7 +582,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a09f0f187521ec2275885d68b
 </dl>
 <dl class="section return"><dt>Returns</dt><dd>Ref-counted pointer to newly created object of the specified type. If you need an up-cast pointer, use <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a64981689c6d162131889bd90ef003279" title="A simple convenience method that casts the result of create_uninit_packet() from shared_ptr&lt;T&gt;,...">create_uninit_packet_base()</a>. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01388">1388</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01385">1385</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
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@@ -621,7 +621,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a64981689c6d162131889bd90
 </dl>
 <dl class="section return"><dt>Returns</dt><dd>See <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a09f0f187521ec2275885d68b7f6e734a" title="Constructs packet with uninitialized (essentially random) values, of the Low_lvl_packet sub-type spec...">create_uninit_packet()</a> (but cast to a type compatible with the polymorphic base type). </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01399">1399</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01396">1396</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">References <a class="el" href="shared__ptr__alias__holder_8hpp_source.html#l00180">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Low_lvl_packet &gt; &gt;::ptr_cast()</a>.</p>
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@@ -716,7 +716,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a57c06fd2d0b1c3ac058c13f9
 <p >Can be used in a compile-time check such as <code>static_assert()</code>.</p>
 <dl class="section return"><dt>Returns</dt><dd>See above. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01404">1404</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01401">1401</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
 </div>
@@ -755,7 +755,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ac7b199700e34d3cc17a7653d
 
 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00159">159</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="low__lvl__packet_8hpp_source.html#l00571">m_aux_raw_data</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00222">m_opt_rexmit_on</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00447">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_opt_rexmit_on_raw</a>, <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a3e7152648c0098491512da590b47b464">m_packed</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00454">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_reserved2</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00119">type_id_native_to_raw()</a>.</p>
+<p class="reference">References <a class="el" href="low__lvl__packet_8hpp_source.html#l00572">m_aux_raw_data</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00223">m_opt_rexmit_on</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00448">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_opt_rexmit_on_raw</a>, <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a3e7152648c0098491512da590b47b464">m_packed</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00455">flow::net_flow::Low_lvl_packet::Aux_raw_data::m_reserved2</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00119">type_id_native_to_raw()</a>.</p>
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 Here is the call graph for this function:</div>
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@@ -841,7 +841,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a5856c405aa18f4f54a355157
 
 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00130">130</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00481">flow::util::buffers_dump_string()</a>, <a class="el" href="log_8hpp_source.html#l00372">FLOW_LOG_DATA_WITHOUT_CHECKING</a>, <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00245">m_type_ostream_manip</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">flow::log::S_DATA</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>, and <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76">serialize_to_raw_data()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00506">flow::util::buffers_dump_string()</a>, <a class="el" href="log_8hpp_source.html#l00372">FLOW_LOG_DATA_WITHOUT_CHECKING</a>, <a class="el" href="log_8hpp_source.html#l00354">FLOW_LOG_TRACE_WITHOUT_CHECKING</a>, <a class="el" href="log_8cpp_source.html#l00230">flow::log::Log_context::get_log_component()</a>, <a class="el" href="log_8cpp_source.html#l00225">flow::log::Log_context::get_logger()</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00246">m_type_ostream_manip</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a138fe9b2eb78ab00c84b21c4a6b48fed">flow::log::S_DATA</a>, <a class="el" href="namespaceflow_1_1log.html#a5c602384e6fe9d7642740ac2fae4ad04a3ee808b04c34bf6c110e3754de277f7b">flow::log::S_TRACE</a>, and <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76">serialize_to_raw_data()</a>.</p>
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@@ -949,7 +949,7 @@ <h3>Implementation note</h3>
 
 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00119">119</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="low__lvl__packet_8hpp_source.html#l00558">S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</a>.</p>
+<p class="reference">References <a class="el" href="low__lvl__packet_8hpp_source.html#l00559">S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00381">create_from_raw_data_packet()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00159">serialize_common_header_to_raw_data()</a>.</p>
 <div class="dynheader">
@@ -996,7 +996,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a37c9c6b04502d73defb803c1
 
 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00108">108</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="low__lvl__packet_8hpp_source.html#l00558">S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</a>.</p>
+<p class="reference">References <a class="el" href="low__lvl__packet_8hpp_source.html#l00559">S_NATIVE_TYPE_ID_TO_PACKET_TYPE_INFO</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="info_8cpp_source.html#l00490">flow::net_flow::Peer_socket_info::output_pkt_count_key()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l01053">type_to_ostream()</a>.</p>
 <div class="dynheader">
@@ -1088,7 +1088,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a1295f44e5a4ebdece11ed6d0
 <p >This is explained in doc header for <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html" title="Helper data store type for storing binary data needed by serialize_to_raw_data(), when certains bits ...">Aux_raw_data</a>.</p>
 <p >It is declared <code>mutable</code>, because the conceptual state contained within a <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a> is expressed via its public non-<code>const</code> data members. <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a1295f44e5a4ebdece11ed6d0eea0fbaa" title="Auxilliary data area necessary for serialize_to_raw_data() to work.">m_aux_raw_data</a> is merely a helper data store for the <code>const</code> method <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76" title="Serializes the current logical packet data from *this into the given Const_buffer_sequence,...">serialize_to_raw_data()</a>. Since that method is <code>const</code>, this should be <code>mutable</code>, like a performance cache of sorts, only not exactly. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00571">571</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00572">572</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00381">create_from_raw_data_packet()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00159">serialize_common_header_to_raw_data()</a>.</p>
 
@@ -1108,7 +1108,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a89bbdc4968a82877de3d7bcb
 
 <p><code>ostream</code> manipulator (argument to <code>ostream &lt;&lt;</code>) that will output packet info suitable for TRACE log level. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00251">251</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00252">252</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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@@ -1126,7 +1126,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a786030d997a7602733a6a442
 
 <p>Flow-protocol port # of socket in receiving <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00233">233</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00234">234</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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@@ -1146,7 +1146,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#acc2a10d19e8e54c88518ad2e
 <p >This value must not change over the course of a connection and is provided in each packet for simpler deserialization (so that the latter can proceed completely without having to check the connection properties).</p>
 <p >For a given connection handshake, the SYN receiver should either disconnect/RST or respond with SYN_ACK. If it responds with SYN_ACK, it indicates agreement to abide by this option for the rest of the connection. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00222">222</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00223">223</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00655">flow::net_flow::Data_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00785">flow::net_flow::Ack_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00159">serialize_common_header_to_raw_data()</a>.</p>
 
@@ -1166,7 +1166,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ae5bd1ed0883b4827d8a81d70
 
 <p>Flow-protocol port # of socket in sending <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00231">231</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00232">232</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
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@@ -1184,7 +1184,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a7f4fd9ce69e293477e96fbad
 
 <p><code>ostream</code> manipulator (argument to <code>ostream &lt;&lt;</code>) that will output packet's type ("ACK", "RST", etc.). </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00245">245</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00246">246</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00513">flow::net_flow::Syn_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00565">flow::net_flow::Syn_ack_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00614">flow::net_flow::Syn_ack_ack_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00655">flow::net_flow::Data_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00785">flow::net_flow::Ack_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, <a class="el" href="low__lvl__packet_8cpp_source.html#l00893">flow::net_flow::Rst_packet::deserialize_type_specific_data_from_raw_data_packet()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00130">serialize_to_raw_data_and_log()</a>.</p>
 
@@ -1204,7 +1204,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ae3e64b049838a690384a8992
 
 <p><code>ostream</code> manipulator (argument to <code>ostream &lt;&lt;</code>) that will output packet info suitable for DATA log level. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00248">248</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00249">249</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 </div>
 </div>
@@ -1233,7 +1233,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a521afb86aaf334b871c9226c
 <h3>Implementation note</h3>
 <p >An alternative way to implement this mechanism (as of this writing, raw type IDs and brief string descriptions per packet type) is to use <code>virtual</code> liberally, combined with a <code>switch</code> if needed. (Note, also, that a way to index &ndash; such as in an <code>unordered</code> container &ndash; by packet type is necessary elsewhere. We use <code>type_index(typeid()))</code> now, but a [worse] alternative is to have <code>virtual</code> type IDs returned for each <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a> sub-type.) I could explain at length all the reasons why the chosen way is superior, but let me just give you the conclusion: I originally tried it the <code>virtual/switch</code> way. Instead of the raw type IDs and string descriptions being conveniently encapsulated in the present map (where there's little to no chance of conflicting values), they were distributed across <code>virtual</code> implementations. This was less maintainable; nor did it improve OO style, since the raw type ID values (at least) were still inter-dependent (were not allowed to conflict) in any case. The present solution does not pretend the actual contents of these values are of no interest to <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a> itself (as opposed to the sub-types), and in not having to pretend this, all related code is quite a bit more compact and a bit more maintainable as well. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00558">558</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00559">559</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00119">type_id_native_to_raw()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00108">type_id_to_str()</a>.</p>
 
@@ -1246,7 +1246,7 @@ <h3>Implementation note</h3>
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data-members.html
index 02c8182a3..f23b498f2 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data-members.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data-members.html
@@ -79,7 +79,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html
index 13a3e0a98..cd3f21345 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Aux__raw__data.html
@@ -109,7 +109,7 @@
 <div class="textblock"><p >Helper data store type for storing binary data needed by <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76" title="Serializes the current logical packet data from *this into the given Const_buffer_sequence,...">serialize_to_raw_data()</a>, when certains bits are not already represented by the public data members present in <code>struct</code> <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a>. </p>
 <p >The need for this is somewhat subtle and is explained fully inside <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76" title="Serializes the current logical packet data from *this into the given Const_buffer_sequence,...">Low_lvl_packet::serialize_to_raw_data()</a>, so I won't go into it here. Also see each data member's doc header. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00438">438</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00439">439</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
 <a id="a7ae37084e00d375a749c3730f77e6072" name="a7ae37084e00d375a749c3730f77e6072"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#a7ae37084e00d375a749c3730f77e6072">&#9670;&nbsp;</a></span>Aux_raw_data()</h2>
@@ -156,7 +156,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a22799fa7c7948cc2f35a4115
 <p>This is the serialized version of the multi-byte <code>bool</code> <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#acc2a10d19e8e54c88518ad2e02a08b68" title="Option indicating whether this connection is using retransmission or not.">Low_lvl_packet::m_opt_rexmit_on</a>. </p>
 <p >Since the latter is of a more civilized <code>bool</code> type, and we need a single byte version, this here is set to the obvious encoding of the <code>bool</code>, when <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76" title="Serializes the current logical packet data from *this into the given Const_buffer_sequence,...">Low_lvl_packet::serialize_to_raw_data()</a> needs to serialize said <code>bool</code>. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00447">447</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00448">448</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00381">flow::net_flow::Low_lvl_packet::create_from_raw_data_packet()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00159">flow::net_flow::Low_lvl_packet::serialize_common_header_to_raw_data()</a>.</p>
 
@@ -177,7 +177,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a244e09a3f5318c25a120e3d2
 <p>Unused space reserved for future use, ensuring correct alignment of other fields and headers. </p>
 <p >Currently it must be always set to zero. Since <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a> has no need of a public data member like this, we keep it in here, as needed for <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#aa2b4697824bd3ca88970c67d9a1f3e76" title="Serializes the current logical packet data from *this into the given Const_buffer_sequence,...">Low_lvl_packet::serialize_to_raw_data()</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00454">454</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00455">455</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00381">flow::net_flow::Low_lvl_packet::create_from_raw_data_packet()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00159">flow::net_flow::Low_lvl_packet::serialize_common_header_to_raw_data()</a>.</p>
 
@@ -190,7 +190,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a244e09a3f5318c25a120e3d2
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info-members.html
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--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info-members.html
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@@ -78,7 +78,7 @@
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html
index b7ab15feb..d32dcf789 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Low__lvl__packet_1_1Packet__type__info.html
@@ -95,7 +95,7 @@
 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
 <div class="textblock"><p >A simple, unmodifiable data store that contains the properties unique to each packet type a/k/a concrete sub-type of <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00468">468</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00469">469</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 </div><h2 class="groupheader">Member Data Documentation</h2>
 <a id="a167901d7c0f96f240dd789027ad99dc5" name="a167901d7c0f96f240dd789027ad99dc5"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#a167901d7c0f96f240dd789027ad99dc5">&#9670;&nbsp;</a></span>m_raw_type_id</h2>
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 <p>The type ID value, in serialized order, to be used in each serialization of all packets of this type. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00471">471</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00472">472</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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@@ -129,7 +129,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a8dc054626823cb59a1570214
 
 <p>The brief string representation of this packet type, suitable for <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html#a37c9c6b04502d73defb803c1efabdf63" title="Returns a brief (a few characters) string description of the given packet type given as type_index(ty...">Low_lvl_packet::type_id_to_str()</a>. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00474">474</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00475">475</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Node_1_1Socket__id-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Node_1_1Socket__id-members.html
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Node_1_1Socket__id.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Node_1_1Socket__id.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack-members.html
@@ -74,17 +74,16 @@
 <p>This is the complete list of members for <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a>, including all inherited members.</p>
 <table class="directory">
   <tr class="even"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">Const_ptr</a> typedef</td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></td><td class="entry"></td></tr>
-  <tr class="odd"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ac31bcdf4026275cb6fa90947a68d562a">Individual_ack</a>(const Individual_ack &amp;)=delete</td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></td><td class="entry"></td></tr>
-  <tr class="even"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a0af3081c75e1c552807ecc7af416efba">m_data_size</a></td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></td><td class="entry"></td></tr>
+  <tr class="odd"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a0af3081c75e1c552807ecc7af416efba">m_data_size</a></td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#af6ffacd3b12b70bf06b70bc8645315c5">m_nc</a></td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></td><td class="entry"></td></tr>
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   <tr class="even"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a29080d01ac5bc0d51ad407587c6721ab">m_rexmit_id</a></td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></td><td class="entry"></td></tr>
   <tr class="odd"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a8a237605b83d8a0d1b175395a83ad768">m_seq_num</a></td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></td><td class="entry"></td></tr>
-  <tr class="even"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad261f9c8073e31fe328734c97a9d384b">operator=</a>(const Individual_ack &amp;)=delete</td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></td><td class="entry"></td></tr>
-  <tr class="odd"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3">Ptr</a> typedef</td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></td><td class="entry"></td></tr>
+  <tr class="even"><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3">Ptr</a> typedef</td><td class="entry"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">flow::net_flow::Peer_socket::Individual_ack</a></td><td class="entry"></td></tr>
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html
index b4035eafa..15e387bec 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html
@@ -69,7 +69,6 @@
 <div class="header">
   <div class="summary">
 <a href="#pub-types">Public Types</a> &#124;
-<a href="#pub-methods">Public Member Functions</a> &#124;
 <a href="#pub-attribs">Public Attributes</a> &#124;
 <a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack-members.html">List of all members</a>  </div>
   <div class="headertitle"><div class="title">flow::net_flow::Peer_socket::Individual_ack Struct Reference</div></div>
@@ -81,7 +80,7 @@
 <div class="dynheader">
 Collaboration diagram for flow::net_flow::Peer_socket::Individual_ack:</div>
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 </div>
 <center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
 <table class="memberdecls">
@@ -94,17 +93,6 @@
 <tr class="memdesc:a209d79e058d103c84fc10be84d492a8b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Short-hand for ref-counted pointer to immutable objects of this class.  <a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a209d79e058d103c84fc10be84d492a8b">More...</a><br /></td></tr>
 <tr class="separator:a209d79e058d103c84fc10be84d492a8b"><td class="memSeparator" colspan="2">&#160;</td></tr>
 </table><table class="memberdecls">
-<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-methods" name="pub-methods"></a>
-Public Member Functions</h2></td></tr>
-<tr class="memitem:ac31bcdf4026275cb6fa90947a68d562a"><td class="memItemLeft" align="right" valign="top"><a id="ac31bcdf4026275cb6fa90947a68d562a" name="ac31bcdf4026275cb6fa90947a68d562a"></a>
-&#160;</td><td class="memItemRight" valign="bottom"><b>Individual_ack</b> (const <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">Individual_ack</a> &amp;)=delete</td></tr>
-<tr class="memdesc:ac31bcdf4026275cb6fa90947a68d562a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Force direct member initialization even if no member is <code>const</code>. <br /></td></tr>
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-<tr class="memitem:ad261f9c8073e31fe328734c97a9d384b"><td class="memItemLeft" align="right" valign="top"><a id="ad261f9c8073e31fe328734c97a9d384b" name="ad261f9c8073e31fe328734c97a9d384b"></a>
-<a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">Individual_ack</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html">Individual_ack</a> &amp;)=delete</td></tr>
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-<tr class="separator:ad261f9c8073e31fe328734c97a9d384b"><td class="memSeparator" colspan="2">&#160;</td></tr>
-</table><table class="memberdecls">
 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
 Public Attributes</h2></td></tr>
 <tr class="memitem:a8a237605b83d8a0d1b175395a83ad768"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classflow_1_1net__flow_1_1Sequence__number.html">Sequence_number</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a8a237605b83d8a0d1b175395a83ad768">m_seq_num</a></td></tr>
@@ -119,12 +107,15 @@
 <tr class="memitem:a0af3081c75e1c552807ecc7af416efba"><td class="memItemLeft" align="right" valign="top">const size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a0af3081c75e1c552807ecc7af416efba">m_data_size</a></td></tr>
 <tr class="memdesc:a0af3081c75e1c552807ecc7af416efba"><td class="mdescLeft">&#160;</td><td class="mdescRight">Number of bytes in the packet's user data.  <a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#a0af3081c75e1c552807ecc7af416efba">More...</a><br /></td></tr>
 <tr class="separator:a0af3081c75e1c552807ecc7af416efba"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:af6ffacd3b12b70bf06b70bc8645315c5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structflow_1_1util_1_1Noncopyable.html">util::Noncopyable</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#af6ffacd3b12b70bf06b70bc8645315c5">m_nc</a> {}</td></tr>
+<tr class="memdesc:af6ffacd3b12b70bf06b70bc8645315c5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Make us noncopyable without breaking aggregateness (direct-init).  <a href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#af6ffacd3b12b70bf06b70bc8645315c5">More...</a><br /></td></tr>
+<tr class="separator:af6ffacd3b12b70bf06b70bc8645315c5"><td class="memSeparator" colspan="2">&#160;</td></tr>
 </table>
 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
 <div class="textblock"><p >Metadata describing the data sent in the acknowledgment of an individual received packet. </p>
 <p >(A low-level ACK packet may include several sets of such data.) This is purely a data store, not a class. It is not copyable, and moving them around by smart <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Individual__ack.html#ad32d17739f7965eeeedfbeae5bfbc1a3" title="Short-hand for ref-counted pointer to mutable objects of this class.">Individual_ack::Ptr</a> is encouraged. Construct this by direct member initialization. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02382">2382</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02383">2383</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 </div><h2 class="groupheader">Member Typedef Documentation</h2>
 <a id="a209d79e058d103c84fc10be84d492a8b" name="a209d79e058d103c84fc10be84d492a8b"></a>
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 <p>Short-hand for ref-counted pointer to immutable objects of this class. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02391">2391</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02392">2392</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 </div>
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 <p>Short-hand for ref-counted pointer to mutable objects of this class. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02388">2388</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02389">2389</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 </div>
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@@ -177,7 +168,25 @@ <h2 class="memtitle"><span class="permalink"><a href="#a0af3081c75e1c552807ecc7a
 
 <p>Number of bytes in the packet's user data. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02409">2409</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02410">2410</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+
+</div>
+</div>
+<a id="af6ffacd3b12b70bf06b70bc8645315c5" name="af6ffacd3b12b70bf06b70bc8645315c5"></a>
+<h2 class="memtitle"><span class="permalink"><a href="#af6ffacd3b12b70bf06b70bc8645315c5">&#9670;&nbsp;</a></span>m_nc</h2>
+
+<div class="memitem">
+<div class="memproto">
+      <table class="memname">
+        <tr>
+          <td class="memname"><a class="el" href="structflow_1_1util_1_1Noncopyable.html">util::Noncopyable</a> flow::net_flow::Peer_socket::Individual_ack::m_nc {}</td>
+        </tr>
+      </table>
+</div><div class="memdoc">
+
+<p>Make us noncopyable without breaking aggregateness (direct-init). </p>
+
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02413">2413</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 </div>
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@@ -195,7 +204,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad6e1407a2a3fc95e568b00f3
 
 <p>When was it received? Used for supplying delay before acknowledging (for other side's RTT calculations). </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02406">2406</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02407">2407</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 </div>
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 <p>Retransmit counter of the packet (as reported by sender). </p>
 <p >Identifies which attempt we are acknowledging (0 = initial, 1 = first retransmit, 2 = second retransmit, ...). Always 0 unless retransmission is on. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02403">2403</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02404">2404</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 </div>
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 <p>Sequence number of first datum in packet. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02396">2396</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02397">2397</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet-members.html
index eceaf3f7f..f8fdfeb4e 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet-members.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet-members.html
@@ -85,7 +85,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html
index e8a8c8792..52fbfa11a 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Received__packet.html
@@ -132,7 +132,7 @@
 <div class="textblock"><p >Metadata (and data, if retransmission is on) for a packet that has been received (and, if retransmission is off, copied to Receive buffer). </p>
 <p >This is purely a data store, not a class. It is not copyable, and moving them around by smart <a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc" title="Short-hand for ref-counted pointer to mutable values of type Target_type::element_type (a-la T*).">Received_packet::Ptr</a> is encouraged. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02337">2337</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02338">2338</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
 <a id="a9f0809d5dd7272e31f4111ee2be97330" name="a9f0809d5dd7272e31f4111ee2be97330"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#a9f0809d5dd7272e31f4111ee2be97330">&#9670;&nbsp;</a></span>Received_packet()</h2>
@@ -186,7 +186,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a9f0809d5dd7272e31f4111ee
 
 <p class="definition">Definition at line <a class="el" href="peer__socket_8cpp_source.html#l00451">451</a> of file <a class="el" href="peer__socket_8cpp_source.html">peer_socket.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l02353">m_data</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02345">m_size</a>.</p>
+<p class="reference">References <a class="el" href="peer__socket_8hpp_source.html#l02354">m_data</a>, and <a class="el" href="peer__socket_8hpp_source.html#l02346">m_size</a>.</p>
 
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@@ -206,7 +206,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ac3e88e37e53d2572f89c599e
 <p>Byte sequence equal to that of <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d" title="The payload.">Data_packet::m_data</a> of the packet. </p>
 <p >Kept <code>empty()</code> if retransmission is off, since in that mode any received packet's <code>m_data</code> is immediately moved to Receive buffer. With retransmission on, it is stored until all gaps before the packet are filled (a/k/a reassembly). </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02353">2353</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02354">2354</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00451">Received_packet()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l01471">flow::net_flow::Node::sock_slide_rcv_next_seq_num()</a>.</p>
 
@@ -226,7 +226,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a7d0760b1dead081bdcf775fb
 
 <p>Number of bytes in the <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d" title="The payload.">Data_packet::m_data</a> field of that packet. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02345">2345</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02346">2346</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l00451">Received_packet()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l01471">flow::net_flow::Node::sock_slide_rcv_next_seq_num()</a>.</p>
 
@@ -239,7 +239,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a7d0760b1dead081bdcf775fb
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet-members.html
index 3f271ce84..e5b3f0d88 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet-members.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet-members.html
@@ -88,7 +88,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html
index 4e9faa549..a9322fc09 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html
@@ -152,7 +152,7 @@
 <div class="textblock"><p >Metadata (and data, if retransmission is on) for a packet that has been sent one (if retransmission is off) or possibly more (if on) times. </p>
 <p >This is purely a data store, not a class. It is not copyable, and moving them around by smart <a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html#aa4f1af88393042e60159a3a67f0accbc" title="Short-hand for ref-counted pointer to mutable values of type Target_type::element_type (a-la T*).">Sent_packet::Ptr</a> is encouraged. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02177">2177</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02178">2178</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 </div><h2 class="groupheader">Member Typedef Documentation</h2>
 <a id="a7913f73b4e2f164ca51ebb505b63c1f2" name="a7913f73b4e2f164ca51ebb505b63c1f2"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#a7913f73b4e2f164ca51ebb505b63c1f2">&#9670;&nbsp;</a></span>ack_count_t</h2>
@@ -169,7 +169,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a7913f73b4e2f164ca51ebb50
 <p>Type used for <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa" title="The number of times any packet with m_sent_when.back().m_order_num &gt; this-&gt;m_sent_when....">m_acks_after_me</a>. </p>
 <p >Use a small type to save memory; this is easily large enough, given that that we drop a packet after <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#affeb974bc03966744adfcda0366a50aa" title="The number of times any packet with m_sent_when.back().m_order_num &gt; this-&gt;m_sent_when....">m_acks_after_me</a> exceeds a very small value (&lt; 10), and a given ACK can <em>conceivably</em> hold a few thousand individual acknowledgments (most likely many fewer). In fact <code>uint8_t</code> is probably enough, but it seemed easier to not worry about overflows when doing arithmetic with these. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02193">2193</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02194">2194</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
 </div>
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@@ -247,9 +247,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#affeb974bc03966744adfcda0
 <p >This is used to determine when <code>*this</code> packet should be considered Dropped, as in TCP's Fast Retransmit heuristic (but better, since time-when-sent &ndash; not sequence number, which has retransmission ambiguities &ndash; is used to order packets).</p>
 <p >Note, again, that "after" has little to do with <em>sequence</em> number but rather with send time, as ordered via the <em>order</em> number. E.g., due to retransmission, <code>*this</code> may have sequence number greater than another packet yet have the lesser order number. (This dichotomy is mentioned a lot, everywhere, and if I'm overdoing it, it's only because sometimes TCP cumulative-ack habits die hard, so I have to keep reminding myself.) (If retransmission is disabled, however, then sequence number order = order number order.) </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02239">2239</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02240">2240</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02936">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02942">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks()</a>.</p>
 
 </div>
 </div>
@@ -270,9 +270,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a704afa0007b8354ad78acad6
 <p >Why store the entire packet and not just its <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d" title="The payload.">Data_packet::m_data</a>? There's a small bit of memory overhead, but we get <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html#ac149f87b8915213857c707b0f3562ef0" title="Retransmit counter of the DATA packet being sent.">Data_packet::m_rexmit_id</a> for free and don't have to spend time re-creating the packet to retransmit. So it's just convenient.</p>
 <p >If retransmission is off, there is no need to store this, as it will not be re-sent. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02254">2254</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02255">2255</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02545">flow::net_flow::Node::categorize_individual_ack()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03921">flow::net_flow::Node::ok_to_rexmit_or_close()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l03781">flow::net_flow::Node::snd_flying_pkts_erase_one()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02551">flow::net_flow::Node::categorize_individual_ack()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03927">flow::net_flow::Node::ok_to_rexmit_or_close()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l03787">flow::net_flow::Node::snd_flying_pkts_erase_one()</a>.</p>
 
 </div>
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@@ -295,9 +295,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a3acccd2fcd0f4a0c5f7f0c2d
 to boost.asio UDP net-stack" IS the same as "time stamp when boost.asio UDP net-stack actually performs the
 `sendto()` call" in practice &ndash; a good thing for accurate RTT measurements. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02220">2220</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02221">2221</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02545">flow::net_flow::Node::categorize_individual_ack()</a>, <a class="el" href="peer__socket_8cpp_source.html#l02936">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00422">flow::net_flow::Node::mark_data_packet_sent()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l03781">flow::net_flow::Node::snd_flying_pkts_erase_one()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02551">flow::net_flow::Node::categorize_individual_ack()</a>, <a class="el" href="peer__socket_8cpp_source.html#l02942">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks()</a>, <a class="el" href="low__lvl__io_8cpp_source.html#l00422">flow::net_flow::Node::mark_data_packet_sent()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l03787">flow::net_flow::Node::snd_flying_pkts_erase_one()</a>.</p>
 
 </div>
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@@ -315,9 +315,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a5b5762a1effba90f631c06ad
 
 <p>Number of bytes in the <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html#ad76ae289cd958d62bb5cd29b9f9e894d" title="The payload.">Data_packet::m_data</a> field of the sent packet. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02198">2198</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02199">2199</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02545">flow::net_flow::Node::categorize_individual_ack()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02551">flow::net_flow::Node::categorize_individual_ack()</a>.</p>
 
 </div>
 </div>
@@ -328,7 +328,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a5b5762a1effba90f631c06ad
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when-members.html
index 774c0bdba..f3332a3c2 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when-members.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when-members.html
@@ -79,7 +79,7 @@
 </table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html
index 7e07c749b..4df4ae81d 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html
@@ -99,7 +99,7 @@
 <div class="textblock"><p >Data store to keep timing related info when a packet is sent out. </p>
 <p >Construct via direct member initialization. It is copy-constructible (for initially copying into containers and such) but not assignable to discourage unneeded copying (though it is not a heavy structure). Update: A later version of clang does not like this technique and warns about it; to avoid any such trouble just forget the non-assignability stuff; it's internal code; we should be fine. </p>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02282">2282</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02283">2283</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 </div><h2 class="groupheader">Member Data Documentation</h2>
 <a id="a5265c3824ad25d1de4f888fa811dd4e6" name="a5265c3824ad25d1de4f888fa811dd4e6"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#a5265c3824ad25d1de4f888fa811dd4e6">&#9670;&nbsp;</a></span>m_order_num</h2>
@@ -118,9 +118,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#a5265c3824ad25d1de4f888fa
 <dl class="section see"><dt>See also</dt><dd><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e" title="Time stamps, order numbers, and other info at the times when the different attempts (including origin...">Peer_socket::Sent_packet::m_sent_when</a> for more discussion.</dd></dl>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000136">Todo:</a></b></dt><dd>Can we make <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#a5265c3824ad25d1de4f888fa811dd4e6" title="Order number of the packet.">Sent_when::m_order_num</a> and some of its peers const? </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02297">2297</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02298">2298</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02936">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l02870">flow::net_flow::Node::compute_rtt_on_ack()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03102">flow::net_flow::Node::drop_pkts_on_acks()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l02061">flow::net_flow::Node::handle_accumulated_acks()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02942">flow::net_flow::Node::categorize_pkts_as_dropped_on_acks()</a>, <a class="el" href="peer__socket_8cpp_source.html#l02876">flow::net_flow::Node::compute_rtt_on_ack()</a>, <a class="el" href="peer__socket_8cpp_source.html#l03108">flow::net_flow::Node::drop_pkts_on_acks()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l02067">flow::net_flow::Node::handle_accumulated_acks()</a>.</p>
 
 </div>
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@@ -141,9 +141,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#abc5bf2e627dad5d2dcfb0324
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000137">Todo:</a></b></dt><dd>Why is <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#abc5bf2e627dad5d2dcfb0324853b37f7" title="The congestion window size (in bytes) that is used when the packet is sent out.">m_sent_cwnd_bytes</a> in <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html" title="Data store to keep timing related info when a packet is sent out.">Sent_when</a> <code>struct</code> and not directly in <code><a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html" title="Metadata (and data, if retransmission is on) for a packet that has been sent one (if retransmission i...">Sent_packet</a></code>? Or maybe it should stay here, but <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html" title="Data store to keep timing related info when a packet is sent out.">Sent_when</a> should be renamed <code>Send_attempt</code> (or <code>Send_try</code> for brevity)? Yeah, I think that's it. Then <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e" title="Time stamps, order numbers, and other info at the times when the different attempts (including origin...">Sent_packet::m_sent_when</a> &ndash; a container of <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html" title="Data store to keep timing related info when a packet is sent out.">Sent_when</a> objects &ndash; would become <code>m_send_tries</code>, a container of <code>Send_try</code> objects. That makes more sense (sentce?!) than the status quo which involves the singular-means-plural strangeness.</dd></dl>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000138">Todo:</a></b></dt><dd>Can we make <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet_1_1Sent__when.html#abc5bf2e627dad5d2dcfb0324853b37f7" title="The congestion window size (in bytes) that is used when the packet is sent out.">m_sent_cwnd_bytes</a> and some of its peers <code>const</code>? </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02327">2327</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02328">2328</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02061">flow::net_flow::Node::handle_accumulated_acks()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l02067">flow::net_flow::Node::handle_accumulated_acks()</a>.</p>
 
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@@ -165,9 +165,9 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad513e58f4eb611c3a91d96df
 <dd>
 <a class="el" href="structflow_1_1net__flow_1_1Peer__socket_1_1Sent__packet.html#a3acccd2fcd0f4a0c5f7f0c2d6ad31c2e" title="Time stamps, order numbers, and other info at the times when the different attempts (including origin...">Peer_socket::Sent_packet::m_sent_when</a> for more discussion. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02309">2309</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="peer__socket_8hpp_source.html#l02310">2310</a> of file <a class="el" href="peer__socket_8hpp_source.html">peer_socket.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l03102">flow::net_flow::Node::drop_pkts_on_acks()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l03108">flow::net_flow::Node::drop_pkts_on_acks()</a>.</p>
 
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@@ -177,7 +177,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ad513e58f4eb611c3a91d96df
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket__info.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket__info.html
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+<p class="reference">Referenced by <a class="el" href="info_8cpp_source.html#l00322">output()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06388">flow::net_flow::Node::sock_load_info_struct()</a>.</p>
 
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-<p class="reference">Referenced by <a class="el" href="info_8cpp_source.html#l00322">output()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06382">flow::net_flow::Node::sock_load_info_struct()</a>.</p>
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-<p class="reference">Referenced by <a class="el" href="info_8cpp_source.html#l00322">output()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06382">flow::net_flow::Node::sock_load_info_struct()</a>.</p>
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+<p class="reference">Referenced by <a class="el" href="options_8cpp_source.html#l00271">setup_config_parsing_helper()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06245">flow::net_flow::Node::sock_validate_options()</a>.</p>
 
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@@ -1066,7 +1066,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a171480324f26432928738532
 
 <p class="definition">Definition at line <a class="el" href="options_8hpp_source.html#l00141">141</a> of file <a class="el" href="options_8hpp_source.html">options.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="options_8cpp_source.html#l00271">setup_config_parsing_helper()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06239">flow::net_flow::Node::sock_validate_options()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="options_8cpp_source.html#l00271">setup_config_parsing_helper()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06245">flow::net_flow::Node::sock_validate_options()</a>.</p>
 
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@@ -1108,7 +1108,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#af483d0292f363e7dbf14dc7a
 
 <p class="definition">Definition at line <a class="el" href="options_8hpp_source.html#l00171">171</a> of file <a class="el" href="options_8hpp_source.html">options.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="options_8cpp_source.html#l00271">setup_config_parsing_helper()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06239">flow::net_flow::Node::sock_validate_options()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="options_8cpp_source.html#l00271">setup_config_parsing_helper()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06245">flow::net_flow::Node::sock_validate_options()</a>.</p>
 
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@@ -1153,7 +1153,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#af78ca6cf3c6da3bc24cea40d
 
 <p class="definition">Definition at line <a class="el" href="options_8hpp_source.html#l00183">183</a> of file <a class="el" href="options_8hpp_source.html">options.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="options_8cpp_source.html#l00271">setup_config_parsing_helper()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06239">flow::net_flow::Node::sock_validate_options()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="options_8cpp_source.html#l00271">setup_config_parsing_helper()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06245">flow::net_flow::Node::sock_validate_options()</a>.</p>
 
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@@ -1196,7 +1196,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a2a3d420992e19e5addb7193d
 
 <p class="definition">Definition at line <a class="el" href="options_8hpp_source.html#l00267">267</a> of file <a class="el" href="options_8hpp_source.html">options.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="options_8cpp_source.html#l00271">setup_config_parsing_helper()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06239">flow::net_flow::Node::sock_validate_options()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="options_8cpp_source.html#l00271">setup_config_parsing_helper()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06245">flow::net_flow::Node::sock_validate_options()</a>.</p>
 
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@@ -1217,7 +1217,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a8ca6086022691700f5e5d2dc
 
 <p class="definition">Definition at line <a class="el" href="options_8hpp_source.html#l00134">134</a> of file <a class="el" href="options_8hpp_source.html">options.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="options_8cpp_source.html#l00271">setup_config_parsing_helper()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06239">flow::net_flow::Node::sock_validate_options()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="options_8cpp_source.html#l00271">setup_config_parsing_helper()</a>, and <a class="el" href="peer__socket_8cpp_source.html#l06245">flow::net_flow::Node::sock_validate_options()</a>.</p>
 
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket__receive__stats.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Peer__socket__receive__stats.html
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Remote__endpoint.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Remote__endpoint.html
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 <p class="definition">Definition at line <a class="el" href="endpoint_8hpp_source.html#l00097">97</a> of file <a class="el" href="endpoint_8hpp_source.html">endpoint.hpp</a>.</p>
 
-<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04005">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="endpoint_8cpp_source.html#l00024">hash()</a>, <a class="el" href="endpoint_8cpp_source.html#l00065">operator&lt;&lt;()</a>, and <a class="el" href="endpoint_8cpp_source.html#l00060">operator==()</a>.</p>
+<p class="reference">Referenced by <a class="el" href="peer__socket_8cpp_source.html#l04011">flow::net_flow::Node::connect_worker()</a>, <a class="el" href="endpoint_8cpp_source.html#l00024">hash()</a>, <a class="el" href="endpoint_8cpp_source.html#l00065">operator&lt;&lt;()</a>, and <a class="el" href="endpoint_8cpp_source.html#l00060">operator==()</a>.</p>
 
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Rst__packet-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Rst__packet-members.html
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Rst__packet.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Rst__packet.html
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@@ -261,7 +261,7 @@
 <h2>Implemementation notes </h2>
 <p >The one peculiar thing about <a class="el" href="structflow_1_1net__flow_1_1Rst__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level RST packet.">Rst_packet</a> is it contains no data beyond the super-<code>struct</code> <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a>, other than the fact it <em>is</em> an <a class="el" href="structflow_1_1net__flow_1_1Rst__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level RST packet.">Rst_packet</a> (i.e., its <code>typeid()</code> identifies it as such). Thus its various <code>virtual</code> methods are typically either simple or even don't exist and defer to the <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a> implementation. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01332">1332</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01329">1329</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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 <h2 class="memtitle"><span class="permalink"><a href="#a171bf247cad883b73b4b76957dfe4994">&#9670;&nbsp;</a></span>Rst_packet()</h2>
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 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00893">893</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, and <a class="el" href="low__lvl__packet_8hpp_source.html#l00245">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, and <a class="el" href="low__lvl__packet_8hpp_source.html#l00246">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a>.</p>
 
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 <p>In serialized packet, the type ID byte identifying this as an RST packet. Must not equal any other packet type's. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01349">1349</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l01346">1346</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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@@ -126,7 +126,7 @@
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__ack__ack__packet.html
@@ -277,7 +277,7 @@
 <p >See <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a> doc header for information common to all low-level packets including this one.</p>
 <p >A SYN_ACK_ACK packet is sent by the original SYN sender in response to a valid received SYN_ACK, completing the 3-way handshake and establishing a <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> to <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> connection. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00791">791</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00792">792</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
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 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00614">614</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a1a0bad5bc4e9c966709f7bc8a2469bf6">m_packed</a>, and <a class="el" href="low__lvl__packet_8hpp_source.html#l00245">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html#a1a0bad5bc4e9c966709f7bc8a2469bf6">m_packed</a>, and <a class="el" href="low__lvl__packet_8hpp_source.html#l00246">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a>.</p>
 
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@@ -490,7 +490,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a3a3a3d676ec71eee0d2daa56
 
 <p>Same meaning as in <code><a class="el" href="structflow_1_1net__flow_1_1Syn__ack__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK packet.">Syn_ack_packet</a></code> but applied to the essentially independent opposite traffic direction of the full-duplex connection being established. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00809">809</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00810">810</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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@@ -509,7 +509,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ab2537625fa282f302e586dee
 <p>This must equal <code><a class="el" href="structflow_1_1net__flow_1_1Syn__ack__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK packet.">Syn_ack_packet</a></code> <code>m_security_token</code> received in the packet to which <code>*this</code> is replying. </p>
 <p >The other side will only proceed with the connection if the two are equal. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00803">803</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00804">804</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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@@ -535,7 +535,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ade7cf2a204f400633f079bed
 
 <p>In serialized packet, the type ID byte identifying this as a SYN_ACK_ACK. Must not equal any other packet type's. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00822">822</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00823">823</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__ack__packet-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__ack__packet-members.html
index 8ed9325fd..5322eb078 100644
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@@ -127,7 +127,7 @@
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 <!-- start footer part -->
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__ack__packet.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__ack__packet.html
index 5f8fac080..112d253f4 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__ack__packet.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__ack__packet.html
@@ -280,7 +280,7 @@
 <p >See <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a> doc header for information common to all low-level packets including this one.</p>
 <p >A SYN_ACK packet is sent by the passively listening server socket in response to a valid received SYN. Thus a SYN_ACK arises from the <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> that performs <a class="el" href="classflow_1_1net__flow_1_1Node.html#a3c2cd6a6c328a2d5381308258d35d95d" title="Sets up a server on the given local Flow port and returns Server_socket which can be used to accept s...">Node::listen()</a> and receives SYN. In response, a <a class="el" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK_ACK packet.">Syn_ack_ack_packet</a> is expected to complete the 3-way handshake and establish a <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> to <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> connection. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00677">677</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00678">678</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
 <a id="a439f09a3ae4d1a5125781e220e29c39e" name="a439f09a3ae4d1a5125781e220e29c39e"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#a439f09a3ae4d1a5125781e220e29c39e">&#9670;&nbsp;</a></span>Syn_ack_packet()</h2>
@@ -375,7 +375,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a1ce651745da7f488ec0bcf3d
 
 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00565">565</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00685">m_init_seq_num</a>, <a class="el" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#aaf2fa9221da49c413441aa8fec93ce91">m_packed</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00245">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a>, <a class="el" href="seq__num_8cpp_source.html#l00268">flow::net_flow::Sequence_number::set_metadata()</a>, and <a class="el" href="seq__num_8cpp_source.html#l00263">flow::net_flow::Sequence_number::set_raw_num()</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00686">m_init_seq_num</a>, <a class="el" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#aaf2fa9221da49c413441aa8fec93ce91">m_packed</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00246">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a>, <a class="el" href="seq__num_8cpp_source.html#l00268">flow::net_flow::Sequence_number::set_metadata()</a>, and <a class="el" href="seq__num_8cpp_source.html#l00263">flow::net_flow::Sequence_number::set_raw_num()</a>.</p>
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@@ -499,7 +499,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a0535131057e39d7d9092156f
 
 <p>Same meaning as <a class="el" href="structflow_1_1net__flow_1_1Syn__packet.html#af235e53d05d025b0808b2ee677c0cba4" title="The Initial Sequence Number (ISN) of the sequence number line that the sender of this SYN will be usi...">Syn_packet::m_init_seq_num</a> but applied to the essentially independent opposite traffic direction of the full-duplex connection being established. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00685">685</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00686">686</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00565">deserialize_type_specific_data_from_raw_data_packet()</a>.</p>
 
@@ -521,7 +521,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a1ed3bdee2d19c2adaaf00fda
 <p >This information is piggybacked into ACK (and SYN_ACK/SYN_ACK_ACK) packets.</p>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000070">Todo:</a></b></dt><dd>We could be similar to TCP by opportunistically sending rcv_wnd in other packet types, namely <a class="el" href="structflow_1_1net__flow_1_1Data__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level DATA packet.">Data_packet</a>. However this would only help in connections with heavy 2-way traffic. Personally I would then prefer to create a new packet type instead, Rcv_wnd_packet, and also implement some generalized "packet combo" scheme which would allow to piggy-back arbitrary packet types together into a single packet; and then we'd dissociate ACK/SYN_ACK/SYN_ACK_ACK from rcv_wnd. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00710">710</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00711">711</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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@@ -540,7 +540,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a46bb776a13c77d7109469c0c
 <p>Random security token used during SYN_ACK-SYN_ACK_ACK. </p>
 <p >For a given connection handshake, the SYN_ACK_ACK receiver ensures that <code><a class="el" href="structflow_1_1net__flow_1_1Syn__ack__ack__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK_ACK packet.">Syn_ack_ack_packet</a></code> <code>m_security_token</code> it receives is equal to the original one it had sent (this <a class="el" href="structflow_1_1net__flow_1_1Syn__ack__packet.html#a46bb776a13c77d7109469c0c29565a30" title="Random security token used during SYN_ACK-SYN_ACK_ACK.">m_security_token</a> here). </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00696">696</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00697">697</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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@@ -566,7 +566,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#ab6db0fded81c7002f0bd00e9
 
 <p>In serialized packet, the type ID byte identifying this as a SYN_ACK. Must not equal any other packet type's. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00726">726</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00727">727</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__packet-members.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__packet-members.html
index 71b87c291..6fe8377f3 100644
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@@ -126,7 +126,7 @@
 </table></div><!-- contents -->
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__packet.html b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__packet.html
index c191d9121..10911812f 100644
--- a/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__packet.html
+++ b/doc/flow_doc/generated/html_full/structflow_1_1net__flow_1_1Syn__packet.html
@@ -272,7 +272,7 @@
 <p >See <a class="el" href="structflow_1_1net__flow_1_1Low__lvl__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level packet structure and serves as...">Low_lvl_packet</a> doc header for information common to all low-level packets including this one.</p>
 <p >A SYN packet is sent by the actively connecting peer to a passively listening server socket. Thus a SYN arises from the <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> that performs <code><a class="el" href="classflow_1_1net__flow_1_1Node.html#a893c8393930110e2aa0823583e37cabd" title="Initiates an active connect to the specified remote Flow server.">Node::connect</a>...()</code>. In response, a <a class="el" href="structflow_1_1net__flow_1_1Syn__ack__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level SYN_ACK packet.">Syn_ack_packet</a> is expected. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00582">582</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00583">583</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
 <a id="a943eb247f6c6a0de134e2d255feaf146" name="a943eb247f6c6a0de134e2d255feaf146"></a>
 <h2 class="memtitle"><span class="permalink"><a href="#a943eb247f6c6a0de134e2d255feaf146">&#9670;&nbsp;</a></span>Syn_packet()</h2>
@@ -367,7 +367,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#aee4a61d5e344959abc89ee83
 
 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00513">513</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00593">m_init_seq_num</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00602">m_serialized_metadata</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00245">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a>, <a class="el" href="seq__num_8cpp_source.html#l00268">flow::net_flow::Sequence_number::set_metadata()</a>, and <a class="el" href="seq__num_8cpp_source.html#l00263">flow::net_flow::Sequence_number::set_raw_num()</a>.</p>
+<p class="reference">References <a class="el" href="log_8hpp_source.html#l00197">FLOW_LOG_INFO</a>, <a class="el" href="log_8hpp_source.html#l00152">FLOW_LOG_WARNING</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00594">m_init_seq_num</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00603">m_serialized_metadata</a>, <a class="el" href="low__lvl__packet_8hpp_source.html#l00246">flow::net_flow::Low_lvl_packet::m_type_ostream_manip</a>, <a class="el" href="seq__num_8cpp_source.html#l00268">flow::net_flow::Sequence_number::set_metadata()</a>, and <a class="el" href="seq__num_8cpp_source.html#l00263">flow::net_flow::Sequence_number::set_raw_num()</a>.</p>
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@@ -466,7 +466,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a11ded0bc8596fb4adc815c53
 
 <p class="definition">Definition at line <a class="el" href="low__lvl__packet_8cpp_source.html#l00925">925</a> of file <a class="el" href="low__lvl__packet_8cpp_source.html">low_lvl_packet.cpp</a>.</p>
 
-<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00388">flow::util::buffers_to_ostream()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00912">flow::net_flow::Low_lvl_packet::to_ostream()</a>.</p>
+<p class="reference">References <a class="el" href="util_2util_8hpp_source.html#l00413">flow::util::buffers_to_ostream()</a>, and <a class="el" href="low__lvl__packet_8cpp_source.html#l00912">flow::net_flow::Low_lvl_packet::to_ostream()</a>.</p>
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@@ -492,7 +492,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#af235e53d05d025b0808b2ee6
 <p>The Initial Sequence Number (ISN) of the sequence number line that the sender of this SYN will be using in <code><a class="el" href="structflow_1_1net__flow_1_1Data__packet.html" title="Internal net_flow struct that encapsulates the Flow-protocol low-level DATA packet.">Data_packet</a></code>s over this connection, if it succeeds. </p>
 <p >All bytes actually sent by the SYN sender will start with this ISN + 1 and increment by 1 for each byte in the stream further. A retransmission of a given datum starting with sequence number S will still start with sequence number S. </p>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00593">593</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00594">594</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
 <p class="reference">Referenced by <a class="el" href="low__lvl__packet_8cpp_source.html#l00513">deserialize_type_specific_data_from_raw_data_packet()</a>.</p>
 
@@ -513,7 +513,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#abde26e74af2154fda517d612
 <p>Arbitrary serialized user-supplied metadata to send in SYN, where it can be deserialized by the user on the other side. </p>
 <dl class="todo"><dt><b><a class="el" href="todo.html#_todo000069">Todo:</a></b></dt><dd>Possibly eliminate this, since NetFlow is reliable; the metadata can just be sent explicitly by the user once the connection is established. However, for now reliability is optional. </dd></dl>
 
-<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00602">602</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00603">603</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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 <p>In serialized packet, the type ID byte identifying this as a SYN packet. Must not equal any other packet type's. </p>
 
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+<p class="definition">Definition at line <a class="el" href="low__lvl__packet_8hpp_source.html#l00611">611</a> of file <a class="el" href="low__lvl__packet_8hpp_source.html">low_lvl_packet.hpp</a>.</p>
 
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+<p class="reference">References <a class="el" href="clock__type__fwd_8hpp_source.html#l00188">m_values</a>, and <a class="el" href="util_2util_8hpp_source.html#l00367">flow::util::ostream_op_to_string()</a>.</p>
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+</div><!-- top -->
+<div class="header">
+  <div class="summary">
+<a href="#pub-methods">Public Member Functions</a> &#124;
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+  <div class="headertitle"><div class="title">flow::util::Noncopyable Struct Reference</div></div>
+</div><!--header-->
+<div class="contents">
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+<p>Useful as a no-unique-address private member to make a type noncopyable while keeping that type an aggregate (can be direct-initialized).  
+ <a href="structflow_1_1util_1_1Noncopyable.html#details">More...</a></p>
+
+<p><code>#include &lt;<a class="el" href="util_2util_8hpp_source.html">util.hpp</a>&gt;</code></p>
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+<tr class="memdesc:ac59627ad248129dd7b37d2d9286761cf"><td class="mdescLeft">&#160;</td><td class="mdescRight">Makes it possible to instantiate. <br /></td></tr>
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+<tr class="memitem:a14a71cd2314f39996c2609ab383145e8"><td class="memItemLeft" align="right" valign="top"><a id="a14a71cd2314f39996c2609ab383145e8" name="a14a71cd2314f39996c2609ab383145e8"></a>
+&#160;</td><td class="memItemRight" valign="bottom"><b>Noncopyable</b> (const <a class="el" href="structflow_1_1util_1_1Noncopyable.html">Noncopyable</a> &amp;)=delete</td></tr>
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+void&#160;</td><td class="memItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="structflow_1_1util_1_1Noncopyable.html">Noncopyable</a> &amp;)=delete</td></tr>
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+<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
+<div class="textblock"><p >Useful as a no-unique-address private member to make a type noncopyable while keeping that type an aggregate (can be direct-initialized). </p>
+<p >So you can do: <code>[[no_unique_address]] <a class="el" href="structflow_1_1util_1_1Noncopyable.html" title="Useful as a no-unique-address private member to make a type noncopyable while keeping that type an ag...">flow::util::Noncopyable</a> m_nc{};</code>.</p>
+<h3>Rationale</h3>
+<p >The usual technique of deriving from <code>boost::noncopyable</code> disables aggregateness. In C++20 declaring a <code>= delete</code> copy ctor also disables it. This trick still works though. </p>
+
+<p class="definition">Definition at line <a class="el" href="util_2util_8hpp_source.html#l00073">73</a> of file <a class="el" href="util_2util_8hpp_source.html">util.hpp</a>.</p>
+</div><hr/>The documentation for this struct was generated from the following file:<ul>
+<li>util/<a class="el" href="util_2util_8hpp_source.html">util.hpp</a></li>
+</ul>
+</div><!-- contents -->
+<!-- start footer part -->
+<hr class="footer"/><address class="footer"><small>
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1util_1_1Scheduled__task__handle__state-members.html b/doc/flow_doc/generated/html_full/structflow_1_1util_1_1Scheduled__task__handle__state-members.html
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-Generated on Wed Dec 11 2024 04:03:16 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/structflow_1_1util_1_1Scheduled__task__handle__state.html b/doc/flow_doc/generated/html_full/structflow_1_1util_1_1Scheduled__task__handle__state.html
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+Generated on Fri Jan 10 2025 20:12:45 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classflow_1_1util_1_1Null__interface.html">flow::util::Null_interface</a></td></tr>
 <tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">An empty interface, consisting of nothing but a default <code>virtual</code> destructor, intended as a boiler-plate-reducing base for any other (presumably <code>virtual</code>-method-having) class that would otherwise require a default <code>virtual</code> destructor.  <a href="classflow_1_1util_1_1Null__interface.html#details">More...</a><br /></td></tr>
 <tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
+<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structflow_1_1util_1_1Noncopyable.html">flow::util::Noncopyable</a></td></tr>
+<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Useful as a no-unique-address private member to make a type noncopyable while keeping that type an aggregate (can be direct-initialized).  <a href="structflow_1_1util_1_1Noncopyable.html#details">More...</a><br /></td></tr>
+<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
 <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classflow_1_1util_1_1Scoped__setter.html">flow::util::Scoped_setter&lt; Value &gt;</a></td></tr>
 <tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">A simple RAII-pattern class template that, at construction, sets the specified location in memory to a specified value, memorizing the previous contents; and at destruction restores the value.  <a href="classflow_1_1util_1_1Scoped__setter.html#details">More...</a><br /></td></tr>
 <tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
@@ -181,7 +184,7 @@
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/util_2util_8hpp_source.html b/doc/flow_doc/generated/html_full/util_2util_8hpp_source.html
index 6a97d52d7..412e22bf0 100644
--- a/doc/flow_doc/generated/html_full/util_2util_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/util_2util_8hpp_source.html
@@ -133,555 +133,584 @@
 <div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>};</div>
 <div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span><span class="comment"></span> </div>
 <div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span><span class="comment">/**</span></div>
-<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span><span class="comment"> * A simple RAII-pattern class template that, at construction, sets the specified location in memory to a specified</span></div>
-<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span><span class="comment"> * value, memorizing the previous contents; and at destruction restores the value.  E.g.:</span></div>
+<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span><span class="comment"> * Useful as a no-unique-address private member to make a type noncopyable while keeping that type an aggregate</span></div>
+<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span><span class="comment"> * (can be direct-initialized).</span></div>
 <div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span><span class="comment"> *   ~~~</span></div>
-<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span><span class="comment"> *   thread_local int s_this_thread_val;</span></div>
-<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="comment"> *   ...</span></div>
-<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span><span class="comment"> *   {</span></div>
-<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="comment"> *     Scoped_setter&lt;int&gt; setter(&amp;s_this_thread_val, 75); // Set it to 75 and memorize (whatever).</span></div>
-<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span><span class="comment"> *     ...</span></div>
-<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span><span class="comment"> *     {</span></div>
-<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="comment"> *       Scoped_setter&lt;int&gt; setter(&amp;s_this_thread_val, 125); // Set it to 125 and memorize 75.</span></div>
-<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span><span class="comment"> *       ...</span></div>
-<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="comment"> *     } // Restored from 125 to 75.</span></div>
-<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="comment"> *     ...</span></div>
-<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span><span class="comment"> *   } // Restored from (probably) 75 to (whatever).</span></div>
-<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="comment"> *   ~~~</span></div>
-<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="comment"> * The object is movable, not copyable (which is similar to `unique_ptr`) to prevent &quot;double-restore.&quot;  Related:</span></div>
-<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span><span class="comment"> * one can easily return customized auto-setter/restorers:</span></div>
-<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="comment"> *   ~~~</span></div>
-<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span><span class="comment"> *   thread_local Widget s_widget;</span></div>
-<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span><span class="comment"> *   auto widget_setter_auto(Widget&amp;&amp; widget_moved)</span></div>
-<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="comment"> *   {</span></div>
-<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment"> *     return flow::util::Scoped_setter&lt;Widget&gt;(&amp;s_widget, std::move(widget_moved));</span></div>
-<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment"> *   }</span></div>
-<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment"> *   ...</span></div>
-<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="comment"> *     { // Later, some block: Set s_widget.  Code here doesn&#39;t even know/care a Scoped_setter is involved.</span></div>
-<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="comment"> *       const auto setter_auto = widget_setter_auto({ ...widget-init... });</span></div>
-<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="comment"> *       ...</span></div>
-<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span><span class="comment"> *     } // Restore s_widget.</span></div>
-<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="comment"> *   ~~~</span></div>
-<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="comment"> * ### Thready safety ###</span></div>
-<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="comment"> * This is a simple object: it just performs a few assignments without any added</span></div>
-<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment"> * concurrency protection.  If the memory location can be accessed simultaneously by other threads, watch out.</span></div>
-<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment"> * In particular it&#39;s a good fit for thread-local locations: `&amp;X`, where `X` is declared `thread_local`, or</span></div>
-<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="comment"> * `X == *(P.get())` where `P` is a `boost::thread_specific_ptr`.</span></div>
-<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="comment"> * @tparam Value</span></div>
-<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="comment"> *         The stored type, which must be move-assignable and move-constructible.</span></div>
-<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="comment"> *         All `Value` writes are performed using exclusively these operations.</span></div>
-<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="comment"> *         Informally: For best performance when `Value` is a heavy-weight type, these operations should be</span></div>
-<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment"> *         be written to be light-weight, such as in terms of swapping a few scalars.</span></div>
-<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment"> *         In particular this is already the case for all STL-compliant container types.</span></div>
-<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="comment"> *</span></div>
-<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="comment"> * @internal</span></div>
-<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment"> * ### Implementation ###</span></div>
-<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment"> * An alternative implementation, which could even be reduced to just an alias, would have used `unique_ptr`.</span></div>
-<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment"> * However in this case I (ygoldfel) wanted maximum control for perf.  The use case originally driving this was</span></div>
-<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment"> * the thread-local verbosity override: log::Config::this_thread_verbosity_override_auto().  flow::log is fairly</span></div>
-<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment"> * paranoid about performance, in general, although admittedly this particular call isn&#39;t necessarily ubiquitous.</span></div>
-<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment"> */</span></div>
-<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Value&gt;</div>
-<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html">  119</a></span><span class="keyword">class </span><a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a></div>
-<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>{</div>
-<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="keyword">public</span>:</div>
-<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>  <span class="comment">// Constructors/destructor.</span></div>
-<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment"></span> </div>
-<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="comment">   * Post-condition: `*target` contains was `val_src_moved` contained at ctor entry; and the destructor invocation shall</span></div>
-<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="comment">   * reverse this, so that `*target` is restored to its value at entry.</span></div>
-<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment">   * `*this` cannot be copied, but it can be moved.  As a result, it is guaranteed that the aforementioned destructor</span></div>
-<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment">   * will execute exactly once; however it can be move-constructed-from-`*this` other Scope_setter&#39;s destructor,</span></div>
-<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment">   * while our own dtor therefore is a no-op.</span></div>
-<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment">   * @param target</span></div>
-<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment">   *        The target object that shall be set to `val_src_moved` now and restored in our, or moved-object&#39;s, dtor.</span></div>
-<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="comment">   *        The current value of `*target` is saved internally via assignment of `move(*target)`.</span></div>
-<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="comment">   *        Behavior undefined (assertion may trip) if null.</span></div>
-<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment">   * @param val_src_moved</span></div>
-<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment">   *        Value to save to `*target` immediately, via assignment of `move(val_src_moved)`.</span></div>
-<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#acd854f798e440e7f4a4c18c7b83443fc">Scoped_setter</a>(Value* target, Value&amp;&amp; val_src_moved);</div>
-<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment"></span> </div>
-<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span><span class="comment">   * Move constructor:  `*this` acts as `src_moved` would-have, while `src_moved` becomes a no-op object permanently.</span></div>
-<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span><span class="comment">   * @param src_moved</span></div>
-<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span><span class="comment">   *        Source object.  Its destructor shall do nothing after this returns.</span></div>
-<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>  <a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#acd854f798e440e7f4a4c18c7b83443fc">Scoped_setter</a>(<a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp;&amp; src_moved);</div>
+<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span><span class="comment"> * So you can do: `[[no_unique_address]] flow::util::Noncopyable m_nc{};`.</span></div>
+<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="comment"> * ### Rationale ###</span></div>
+<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span><span class="comment"> * The usual technique of deriving from `boost::noncopyable` disables aggregateness.  In C++20 declaring</span></div>
+<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span><span class="comment"> * a `= delete` copy ctor also disables it.  This trick still works though.</span></div>
+<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"><a class="line" href="structflow_1_1util_1_1Noncopyable.html">   73</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structflow_1_1util_1_1Noncopyable.html">Noncopyable</a></div>
+<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span>{</div>
+<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>  <span class="comment">// Constructors/destructor.</span></div>
+<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="comment"></span> </div>
+<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span><span class="comment">  /// Makes it possible to instantiate.</span></div>
+<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"><a class="line" href="structflow_1_1util_1_1Noncopyable.html#ac59627ad248129dd7b37d2d9286761cf">   78</a></span><span class="comment"></span>  <a class="code hl_function" href="structflow_1_1util_1_1Noncopyable.html#ac59627ad248129dd7b37d2d9286761cf">Noncopyable</a>() = <span class="keywordflow">default</span>;<span class="comment"></span></div>
+<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span><span class="comment">  /// Forbid copying.</span></div>
+<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"><a class="line" href="structflow_1_1util_1_1Noncopyable.html#a14a71cd2314f39996c2609ab383145e8">   80</a></span><span class="comment"></span>  <a class="code hl_function" href="structflow_1_1util_1_1Noncopyable.html#a14a71cd2314f39996c2609ab383145e8">Noncopyable</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1util_1_1Noncopyable.html">Noncopyable</a>&amp;) = <span class="keyword">delete</span>;</div>
+<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span> </div>
+<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span><span class="comment"></span> </div>
+<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="comment">  /// Forbid copying.</span></div>
+<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"><a class="line" href="structflow_1_1util_1_1Noncopyable.html#a50501b7b5fcc26f2bcb4503c7b32a360">   85</a></span><span class="comment"></span>  <span class="keywordtype">void</span> <a class="code hl_function" href="structflow_1_1util_1_1Noncopyable.html#a50501b7b5fcc26f2bcb4503c7b32a360">operator=</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structflow_1_1util_1_1Noncopyable.html">Noncopyable</a>&amp;) = <span class="keyword">delete</span>;</div>
+<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>};</div>
+<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span><span class="comment"></span> </div>
+<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="comment">/**</span></div>
+<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="comment"> * A simple RAII-pattern class template that, at construction, sets the specified location in memory to a specified</span></div>
+<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="comment"> * value, memorizing the previous contents; and at destruction restores the value.  E.g.:</span></div>
+<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="comment"> *   ~~~</span></div>
+<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span><span class="comment"> *   thread_local int s_this_thread_val;</span></div>
+<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span><span class="comment"> *   ...</span></div>
+<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span><span class="comment"> *   {</span></div>
+<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span><span class="comment"> *     Scoped_setter&lt;int&gt; setter(&amp;s_this_thread_val, 75); // Set it to 75 and memorize (whatever).</span></div>
+<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="comment"> *     ...</span></div>
+<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span><span class="comment"> *     {</span></div>
+<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span><span class="comment"> *       Scoped_setter&lt;int&gt; setter(&amp;s_this_thread_val, 125); // Set it to 125 and memorize 75.</span></div>
+<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span><span class="comment"> *       ...</span></div>
+<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span><span class="comment"> *     } // Restored from 125 to 75.</span></div>
+<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span><span class="comment"> *     ...</span></div>
+<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span><span class="comment"> *   } // Restored from (probably) 75 to (whatever).</span></div>
+<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="comment"> *   ~~~</span></div>
+<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span><span class="comment"> * The object is movable, not copyable (which is similar to `unique_ptr`) to prevent &quot;double-restore.&quot;  Related:</span></div>
+<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span><span class="comment"> * one can easily return customized auto-setter/restorers:</span></div>
+<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span><span class="comment"> *   ~~~</span></div>
+<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span><span class="comment"> *   thread_local Widget s_widget;</span></div>
+<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="comment"> *   auto widget_setter_auto(Widget&amp;&amp; widget_moved)</span></div>
+<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span><span class="comment"> *   {</span></div>
+<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span><span class="comment"> *     return flow::util::Scoped_setter&lt;Widget&gt;(&amp;s_widget, std::move(widget_moved));</span></div>
+<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span><span class="comment"> *   }</span></div>
+<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span><span class="comment"> *   ...</span></div>
+<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span><span class="comment"> *     { // Later, some block: Set s_widget.  Code here doesn&#39;t even know/care a Scoped_setter is involved.</span></div>
+<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span><span class="comment"> *       const auto setter_auto = widget_setter_auto({ ...widget-init... });</span></div>
+<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span><span class="comment"> *       ...</span></div>
+<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span><span class="comment"> *     } // Restore s_widget.</span></div>
+<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span><span class="comment"> *   ~~~</span></div>
+<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span><span class="comment"> * ### Thready safety ###</span></div>
+<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment"> * This is a simple object: it just performs a few assignments without any added</span></div>
+<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment"> * concurrency protection.  If the memory location can be accessed simultaneously by other threads, watch out.</span></div>
+<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span><span class="comment"> * In particular it&#39;s a good fit for thread-local locations: `&amp;X`, where `X` is declared `thread_local`, or</span></div>
+<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span><span class="comment"> * `X == *(P.get())` where `P` is a `boost::thread_specific_ptr`.</span></div>
+<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span><span class="comment"> * @tparam Value</span></div>
+<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span><span class="comment"> *         The stored type, which must be move-assignable and move-constructible.</span></div>
+<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span><span class="comment"> *         All `Value` writes are performed using exclusively these operations.</span></div>
+<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span><span class="comment"> *         Informally: For best performance when `Value` is a heavy-weight type, these operations should be</span></div>
+<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span><span class="comment"> *         be written to be light-weight, such as in terms of swapping a few scalars.</span></div>
+<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span><span class="comment"> *         In particular this is already the case for all STL-compliant container types.</span></div>
+<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span><span class="comment"> *</span></div>
+<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span><span class="comment"> * @internal</span></div>
+<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span><span class="comment"> * ### Implementation ###</span></div>
+<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span><span class="comment"> * An alternative implementation, which could even be reduced to just an alias, would have used `unique_ptr`.</span></div>
+<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span><span class="comment"> * However in this case I (ygoldfel) wanted maximum control for perf.  The use case originally driving this was</span></div>
+<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span><span class="comment"> * the thread-local verbosity override: log::Config::this_thread_verbosity_override_auto().  flow::log is fairly</span></div>
+<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="comment"> * paranoid about performance, in general, although admittedly this particular call isn&#39;t necessarily ubiquitous.</span></div>
+<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span><span class="comment"> */</span></div>
+<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Value&gt;</div>
+<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html">  144</a></span><span class="keyword">class </span><a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a></div>
+<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span>{</div>
+<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span><span class="keyword">public</span>:</div>
+<div class="line"><a id="l00147" name="l00147"></a><span class="lineno">  147</span>  <span class="comment">// Constructors/destructor.</span></div>
 <div class="line"><a id="l00148" name="l00148"></a><span class="lineno">  148</span><span class="comment"></span> </div>
-<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span><span class="comment">  /// Prohibit copying: for each `explicit` ctor invocation, there shall be exactly 1 non-no-op dtor invocation.</span></div>
-<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#a9f61f7f731e78c9760b925b577cdd503">  150</a></span><span class="comment"></span>  <a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#a9f61f7f731e78c9760b925b577cdd503">Scoped_setter</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp;) = <span class="keyword">delete</span>;</div>
-<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span><span class="comment"></span> </div>
-<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span><span class="comment">  /**</span></div>
-<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span><span class="comment">   * Restores `*target` (from main ctor) to its value at entry to said ctor; or does nothing if `*this` has been</span></div>
-<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment">   * moved-from via the move ctor.</span></div>
-<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment">   */</span></div>
-<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>  <a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#a12ca74f225f756458f872e6f0da60695">~Scoped_setter</a>();</div>
-<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span> </div>
-<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>  <span class="comment">// Methods.</span></div>
-<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span><span class="comment"></span> </div>
-<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="comment">  /// Prohibit copying (see `delete`d copy ctor).</span></div>
-<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#aa4464d1c39413033a0e457a494363bce">  161</a></span><span class="comment"></span>  <a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp; <a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#aa4464d1c39413033a0e457a494363bce">operator=</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp;) = <span class="keyword">delete</span>;</div>
-<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment"></span> </div>
-<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="comment">  /// Prohibit modifying existing `*this`; except that moving-from is enabled via the move ctor.</span></div>
-<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#ae0dcbc446c250933940ead3cb589c1eb">  164</a></span><span class="comment"></span>  <a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp; <a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#ae0dcbc446c250933940ead3cb589c1eb">operator=</a>(<a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp;&amp;) = <span class="keyword">delete</span>;</div>
-<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span> </div>
-<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span><span class="keyword">private</span>:</div>
-<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>  <span class="comment">// Data.</span></div>
-<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span><span class="comment"></span> </div>
-<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span><span class="comment">  /// Target object location; see ctors; if null then this is a moved-from Scoped_setter that intentionally no-ops.</span></div>
-<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#ab36f9981921da6540fc5c308e4c19a9c">  170</a></span><span class="comment"></span>  Value* <a class="code hl_variable" href="classflow_1_1util_1_1Scoped__setter.html#ab36f9981921da6540fc5c308e4c19a9c">m_target_or_null</a>;</div>
-<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span><span class="comment"></span> </div>
-<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span><span class="comment">  /// If and only if #m_target_or_null is non-null, this saves `*m_target_or_null`.  Otherwise meaningless.</span></div>
-<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#a8547c08154499e1694202da49afb7202">  173</a></span><span class="comment"></span>  Value <a class="code hl_variable" href="classflow_1_1util_1_1Scoped__setter.html#a8547c08154499e1694202da49afb7202">m_saved_value</a>;</div>
-<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span>}; <span class="comment">// class Scoped_setter</span></div>
-<div class="line"><a id="l00175" name="l00175"></a><span class="lineno">  175</span> </div>
-<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span><span class="comment">// Template implementations.</span></div>
-<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span> </div>
-<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span><span class="comment">// Scoped_setter template implementations.</span></div>
-<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span> </div>
-<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Value&gt;</div>
-<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#acd854f798e440e7f4a4c18c7b83443fc">  181</a></span><a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#acd854f798e440e7f4a4c18c7b83443fc">Scoped_setter&lt;Value&gt;::Scoped_setter</a>(Value* target, Value&amp;&amp; val_src_moved) :</div>
-<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span>  m_target_or_null(target),</div>
-<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span>  m_saved_value(std::move(*m_target_or_null))</div>
-<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>{</div>
-<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span>  *<a class="code hl_variable" href="classflow_1_1util_1_1Scoped__setter.html#ab36f9981921da6540fc5c308e4c19a9c">m_target_or_null</a> = std::move(val_src_moved);</div>
-<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span>}</div>
-<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span> </div>
-<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Value&gt;</div>
-<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#a2ac7e58548cfe7989835b11fdc97f02c">  189</a></span><a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#acd854f798e440e7f4a4c18c7b83443fc">Scoped_setter&lt;Value&gt;::Scoped_setter</a>(<a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp;&amp; src_moved) : <span class="comment">// =default might work fine but to be clear/certain:</span></div>
-<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span>  m_target_or_null(src_moved.m_target_or_null),</div>
-<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span>  m_saved_value(std::move(src_moved.m_saved_value))</div>
-<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span>{</div>
-<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span>  assert(<a class="code hl_variable" href="classflow_1_1util_1_1Scoped__setter.html#ab36f9981921da6540fc5c308e4c19a9c">m_target_or_null</a> &amp;&amp; <span class="stringliteral">&quot;Should not be moving-from a thing that has already been moved-from.&quot;</span>);</div>
-<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span> </div>
-<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span>  src_moved.m_target_or_null = <span class="keyword">nullptr</span>;</div>
-<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span>  <span class="comment">// As promised: Now src_moved&#39;s dtor will no-op.</span></div>
-<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span>}</div>
-<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span> </div>
-<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Value&gt;</div>
-<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#a12ca74f225f756458f872e6f0da60695">  200</a></span><a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#a12ca74f225f756458f872e6f0da60695">Scoped_setter&lt;Value&gt;::~Scoped_setter</a>()</div>
-<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span>{</div>
-<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span>  <span class="keywordflow">if</span> (m_target_or_null)</div>
-<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span>  {</div>
-<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>    *m_target_or_null = std::move(m_saved_value);</div>
-<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>  }</div>
-<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span>  <span class="comment">// else { `*this` must have been moved-from.  No-op. }</span></div>
-<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span>}</div>
-<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span> </div>
-<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span><span class="comment">// Free function template implementations.</span></div>
-<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span> </div>
-<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Time_unit, <span class="keyword">typename</span> N_items&gt;</div>
-<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a0f681afaf67a0f917cf43a7ae893a015">  212</a></span><span class="keywordtype">double</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a0f681afaf67a0f917cf43a7ae893a015">to_mbit_per_sec</a>(N_items items_per_time, <span class="keywordtype">size_t</span> bits_per_item)</div>
-<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span>{</div>
-<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span>  <span class="comment">/* Let there be U/W seconds per Time_unit.  Then the following holds:</span></div>
-<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span><span class="comment">   * items_per_time items/Time_units * W/U Time_units/second * bits_per_item bits/item</span></div>
-<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span><span class="comment">   *   * 1/(1000*1000) megabits/bits</span></div>
-<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span><span class="comment">   *   = items_per_time * W / U * bits_per_item / 1000 / 1000 megabits/second.</span></div>
-<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span><span class="comment">   * Notice the units work out.  W and U are conveniently available in Time_unit::period, which is a boost::ratio. */</span></div>
-<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span> </div>
-<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>  <span class="keywordflow">return</span></div>
-<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span>    <span class="comment">/* This zealously converts everything to double ASAP to avoid overflow.  Could probably speed things up a bit</span></div>
-<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span><span class="comment">     * by postponing some of those conversions until after some integer multiplications, but then overflows could</span></div>
-<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span><span class="comment">     * creep in.  It&#39;s best not to assume too much about the values of den and num, as this function is meant to</span></div>
-<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span><span class="comment">     * be rather adaptable to various situations.  I did try to avoid unnecessary divisions though in favor of</span></div>
-<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span><span class="comment">     * multiplications, sort of guessing the latter are faster.  Or not... *shrug*. */</span></div>
-<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>    double(items_per_time) * double(bits_per_item) * double(Time_unit::period::den)</div>
-<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>    / (double(Time_unit::period::num) * double(1000 * 1000));</div>
-<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span>}</div>
-<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span> </div>
-<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Integer&gt;</div>
-<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a6b7316b3ed6d89f54c91e17c2aab101e">  233</a></span>Integer <a class="code hl_function" href="namespaceflow_1_1util.html#a6b7316b3ed6d89f54c91e17c2aab101e">ceil_div</a>(Integer dividend, Integer divisor)</div>
-<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>{</div>
-<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span>  <span class="comment">// ceil(A : B) = (A + B - 1) / B, where : is floating point division, while / is integer division.</span></div>
-<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span>  <span class="keyword">static_assert</span>(std::is_integral_v&lt;Integer&gt;, <span class="stringliteral">&quot;ceil_div&lt;T&gt;: T must be an integer type.&quot;</span>);</div>
-<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span>  assert(dividend &gt;= 0);</div>
-<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span>  assert(divisor &gt; 0);</div>
-<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span> </div>
-<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>  <span class="keywordflow">return</span> (dividend + divisor - 1) / divisor;</div>
-<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span>  <span class="comment">/* (Could one do further bitwise trickery?  Perhaps but let optimizer do it.  Wouldn&#39;t optimizer also just</span></div>
-<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="comment">   * optimize a literal floating-point `ceil(a / b)`?  Well, no.  Probably not.  So we wrote this function.) */</span></div>
-<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span>}</div>
-<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span> </div>
-<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
-<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#ab10bc9e8bef148f875aa743fe0852743">  246</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#ab10bc9e8bef148f875aa743fe0852743">in_closed_range</a>(T <span class="keyword">const</span> &amp; min_val, T <span class="keyword">const</span> &amp; val, T <span class="keyword">const</span> &amp; max_val)</div>
-<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span>{</div>
-<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span>  <span class="comment">// This writes &quot;(min_val &lt;= val) &amp;&amp; (val &lt;= max_val)&quot; by using only &lt;, to support the greatest number of types.</span></div>
-<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span>  <span class="keywordflow">return</span> ((min_val &lt; val) || (!(val &lt; min_val))) &amp;&amp;</div>
-<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span>         ((val &lt; max_val) || (!(max_val &lt; val)));</div>
-<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span>}</div>
-<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span> </div>
-<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
-<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a8ae762ea4f743a98a73953d7f9ec2164">  254</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a8ae762ea4f743a98a73953d7f9ec2164">in_open_closed_range</a>(T <span class="keyword">const</span> &amp; min_val, T <span class="keyword">const</span> &amp; val, T <span class="keyword">const</span> &amp; max_val)</div>
-<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span>{</div>
-<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span>  <span class="comment">// This writes &quot;(min_val &lt; val) &amp;&amp; (val &lt;= max_val)&quot; by using only &lt;, to support the greatest number of types.</span></div>
-<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span>  <span class="keywordflow">return</span> (min_val &lt; val) &amp;&amp;</div>
-<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span>         ((val &lt; max_val) || (!(max_val &lt; val)));</div>
-<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span>}</div>
-<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span> </div>
-<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
-<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a024ddda9acb2b66f2a1b35cdb0c016aa">  262</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a024ddda9acb2b66f2a1b35cdb0c016aa">in_closed_open_range</a>(T <span class="keyword">const</span> &amp; min_val, T <span class="keyword">const</span> &amp; val, T <span class="keyword">const</span> &amp; max_val)</div>
-<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span>{</div>
-<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span>  <span class="comment">// This writes &quot;(val &lt; max_val) &amp;&amp; (min_val &lt;= val)&quot; by using only &lt;, to support the greatest number of types.</span></div>
-<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span>  <span class="keywordflow">return</span> (val &lt; max_val) &amp;&amp;</div>
-<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span>         ((min_val &lt; val) || (!(val &lt; min_val)));</div>
-<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span>}</div>
-<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span> </div>
-<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
-<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a733448fee07c2a77e343a3f1590ff82e">  270</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a733448fee07c2a77e343a3f1590ff82e">in_open_open_range</a>(T <span class="keyword">const</span> &amp; min_val, T <span class="keyword">const</span> &amp; val, T <span class="keyword">const</span> &amp; max_val)</div>
-<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span>{</div>
-<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span>  <span class="keywordflow">return</span> (min_val &lt; val) &amp;&amp; (val &lt; max_val);</div>
-<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span>}</div>
-<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span> </div>
-<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Container&gt;</div>
-<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">  276</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">key_exists</a>(<span class="keyword">const</span> Container&amp; container, <span class="keyword">const</span> <span class="keyword">typename</span> Container::key_type&amp; key)</div>
-<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span>{</div>
-<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span>  <span class="keywordflow">return</span> container.find(key) != container.end();</div>
-<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span>}</div>
-<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span> </div>
-<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Cleanup_func&gt;</div>
-<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">  282</a></span><a class="code hl_typedef" href="namespaceflow_1_1util.html#ab22fd89e165a9e6deaa174bc0dfdc8de">Auto_cleanup</a> <a class="code hl_function" href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">setup_auto_cleanup</a>(<span class="keyword">const</span> Cleanup_func&amp; func)</div>
-<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span>{</div>
-<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span>  <span class="comment">/* This trick, from shared_ptr or bind Boost docs (if I recall correctly), uses shared_ptr&#39;s deleter feature.  The</span></div>
-<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span><span class="comment">   * Auto_cleanup gains &quot;ownership&quot; of null pointer, purely for the purpose of running a deleter on it when the object</span></div>
-<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span><span class="comment">   * goes out of scope sometime later.  Deleting 0 itself would have been useless no-op, and instead we ignore the null</span></div>
-<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span><span class="comment">   * and simply call user&#39;s func(), which is what the goal is.</span></div>
-<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span><span class="comment">   * Subtlety: shared_ptr docs say the passed-in deleter is saved by copy, so we needn&#39;t worry about it disappearing</span></div>
-<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span><span class="comment">   * after we return.</span></div>
-<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span><span class="comment">   *</span></div>
-<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span><span class="comment">   * Subtlety: we need to make a copy (via capture) of func, as there&#39;s zero guarantee (and low likelihood in practice)</span></div>
-<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span><span class="comment">   * that func is a valid object at the time cleanup is actually needed (sometime after we return). */</span></div>
-<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span>  <span class="keywordflow">return</span> <a class="code hl_typedef" href="namespaceflow_1_1util.html#ab22fd89e165a9e6deaa174bc0dfdc8de">Auto_cleanup</a>(<span class="keyword">static_cast&lt;</span><span class="keywordtype">void</span>*<span class="keyword">&gt;</span>(0),</div>
-<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span>                      [func](<span class="keywordtype">void</span>*) { func(); });</div>
-<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span>}</div>
-<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span> </div>
-<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Minuend, <span class="keyword">typename</span> Subtrahend&gt;</div>
-<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">  299</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">subtract_with_floor</a>(Minuend* minuend, <span class="keyword">const</span> Subtrahend&amp; subtrahend, <span class="keyword">const</span> Minuend&amp; floor)</div>
-<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span>{</div>
-<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span>  assert(minuend);</div>
-<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span> </div>
-<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span>  <span class="comment">/* Basically just avoid implicit conversions and anything that mind overflow or underflow.</span></div>
-<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span><span class="comment">   * The one underflow we allow is the subtraction of `floor`: doc header says keep `floor` small.</span></div>
-<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span><span class="comment">   * So it&#39;s their problem if it&#39;s not. */</span></div>
-<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span> </div>
-<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span>  <span class="keyword">const</span> Minuend converted_subtrahend = Minuend(subtrahend);</div>
-<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span> </div>
-<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span>  <span class="comment">// min - sub &lt;= floor &lt;===&gt; min - floor &lt;= sub.</span></div>
-<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span>  <span class="keywordflow">if</span> ((*minuend - floor) &lt;= converted_subtrahend)</div>
-<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span>  {</div>
-<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span>    *minuend = floor;</div>
-<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
-<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span>  }</div>
-<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span>  <span class="comment">// else</span></div>
-<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span>  *minuend -= converted_subtrahend;</div>
-<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
-<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span>}</div>
-<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span> </div>
-<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> From, <span class="keyword">typename</span> To&gt;</div>
-<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a67eecb5096dabfaff3d02c419b304540">  321</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a67eecb5096dabfaff3d02c419b304540">size_unit_convert</a>(From num_froms)</div>
-<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span>{</div>
-<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span>  <span class="keywordflow">return</span> ((num_froms * <span class="keyword">sizeof</span>(From)) + <span class="keyword">sizeof</span>(To) - 1) / <span class="keyword">sizeof</span>(To);</div>
-<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span>}</div>
-<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span> </div>
-<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> T1, <span class="keyword">typename</span> ...T_rest&gt;</div>
-<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#af92e6183c2071f4166d4b5a91f50d70c">  327</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceflow_1_1util.html#af92e6183c2071f4166d4b5a91f50d70c">feed_args_to_ostream</a>(std::ostream* os, T1 <span class="keyword">const</span> &amp; ostream_arg1, T_rest <span class="keyword">const</span> &amp;... remaining_ostream_args)</div>
-<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span>{</div>
-<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span>  <span class="comment">// Induction step for variadic template.</span></div>
-<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#af92e6183c2071f4166d4b5a91f50d70c">feed_args_to_ostream</a>(os, ostream_arg1);</div>
-<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#af92e6183c2071f4166d4b5a91f50d70c">feed_args_to_ostream</a>(os, remaining_ostream_args...);</div>
-<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span>}</div>
+<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span><span class="comment">   * Post-condition: `*target` contains was `val_src_moved` contained at ctor entry; and the destructor invocation shall</span></div>
+<div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span><span class="comment">   * reverse this, so that `*target` is restored to its value at entry.</span></div>
+<div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span><span class="comment">   * `*this` cannot be copied, but it can be moved.  As a result, it is guaranteed that the aforementioned destructor</span></div>
+<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span><span class="comment">   * will execute exactly once; however it can be move-constructed-from-`*this` other Scope_setter&#39;s destructor,</span></div>
+<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span><span class="comment">   * while our own dtor therefore is a no-op.</span></div>
+<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span><span class="comment">   * @param target</span></div>
+<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span><span class="comment">   *        The target object that shall be set to `val_src_moved` now and restored in our, or moved-object&#39;s, dtor.</span></div>
+<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span><span class="comment">   *        The current value of `*target` is saved internally via assignment of `move(*target)`.</span></div>
+<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span><span class="comment">   *        Behavior undefined (assertion may trip) if null.</span></div>
+<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span><span class="comment">   * @param val_src_moved</span></div>
+<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span><span class="comment">   *        Value to save to `*target` immediately, via assignment of `move(val_src_moved)`.</span></div>
+<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span>  <span class="keyword">explicit</span> <a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#acd854f798e440e7f4a4c18c7b83443fc">Scoped_setter</a>(Value* target, Value&amp;&amp; val_src_moved);</div>
+<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span><span class="comment"></span> </div>
+<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span><span class="comment">   * Move constructor:  `*this` acts as `src_moved` would-have, while `src_moved` becomes a no-op object permanently.</span></div>
+<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span><span class="comment">   * @param src_moved</span></div>
+<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span><span class="comment">   *        Source object.  Its destructor shall do nothing after this returns.</span></div>
+<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>  <a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#acd854f798e440e7f4a4c18c7b83443fc">Scoped_setter</a>(<a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp;&amp; src_moved);</div>
+<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span><span class="comment"></span> </div>
+<div class="line"><a id="l00174" name="l00174"></a><span class="lineno">  174</span><span class="comment">  /// Prohibit copying: for each `explicit` ctor invocation, there shall be exactly 1 non-no-op dtor invocation.</span></div>
+<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#a9f61f7f731e78c9760b925b577cdd503">  175</a></span><span class="comment"></span>  <a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#a9f61f7f731e78c9760b925b577cdd503">Scoped_setter</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp;) = <span class="keyword">delete</span>;</div>
+<div class="line"><a id="l00176" name="l00176"></a><span class="lineno">  176</span><span class="comment"></span> </div>
+<div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span><span class="comment">  /**</span></div>
+<div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span><span class="comment">   * Restores `*target` (from main ctor) to its value at entry to said ctor; or does nothing if `*this` has been</span></div>
+<div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span><span class="comment">   * moved-from via the move ctor.</span></div>
+<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span><span class="comment">   */</span></div>
+<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span>  <a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#a12ca74f225f756458f872e6f0da60695">~Scoped_setter</a>();</div>
+<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span> </div>
+<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span>  <span class="comment">// Methods.</span></div>
+<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span><span class="comment"></span> </div>
+<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span><span class="comment">  /// Prohibit copying (see `delete`d copy ctor).</span></div>
+<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#aa4464d1c39413033a0e457a494363bce">  186</a></span><span class="comment"></span>  <a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp; <a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#aa4464d1c39413033a0e457a494363bce">operator=</a>(<span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp;) = <span class="keyword">delete</span>;</div>
+<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span><span class="comment"></span> </div>
+<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span><span class="comment">  /// Prohibit modifying existing `*this`; except that moving-from is enabled via the move ctor.</span></div>
+<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#ae0dcbc446c250933940ead3cb589c1eb">  189</a></span><span class="comment"></span>  <a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp; <a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#ae0dcbc446c250933940ead3cb589c1eb">operator=</a>(<a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp;&amp;) = <span class="keyword">delete</span>;</div>
+<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span> </div>
+<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="keyword">private</span>:</div>
+<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span>  <span class="comment">// Data.</span></div>
+<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span><span class="comment"></span> </div>
+<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span><span class="comment">  /// Target object location; see ctors; if null then this is a moved-from Scoped_setter that intentionally no-ops.</span></div>
+<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#ab36f9981921da6540fc5c308e4c19a9c">  195</a></span><span class="comment"></span>  Value* <a class="code hl_variable" href="classflow_1_1util_1_1Scoped__setter.html#ab36f9981921da6540fc5c308e4c19a9c">m_target_or_null</a>;</div>
+<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span><span class="comment"></span> </div>
+<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span><span class="comment">  /// If and only if #m_target_or_null is non-null, this saves `*m_target_or_null`.  Otherwise meaningless.</span></div>
+<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#a8547c08154499e1694202da49afb7202">  198</a></span><span class="comment"></span>  Value <a class="code hl_variable" href="classflow_1_1util_1_1Scoped__setter.html#a8547c08154499e1694202da49afb7202">m_saved_value</a>;</div>
+<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span>}; <span class="comment">// class Scoped_setter</span></div>
+<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span> </div>
+<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="comment">// Template implementations.</span></div>
+<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span> </div>
+<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span><span class="comment">// Scoped_setter template implementations.</span></div>
+<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span> </div>
+<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Value&gt;</div>
+<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#acd854f798e440e7f4a4c18c7b83443fc">  206</a></span><a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#acd854f798e440e7f4a4c18c7b83443fc">Scoped_setter&lt;Value&gt;::Scoped_setter</a>(Value* target, Value&amp;&amp; val_src_moved) :</div>
+<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span>  m_target_or_null(target),</div>
+<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span>  m_saved_value(std::move(*m_target_or_null))</div>
+<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span>{</div>
+<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span>  *<a class="code hl_variable" href="classflow_1_1util_1_1Scoped__setter.html#ab36f9981921da6540fc5c308e4c19a9c">m_target_or_null</a> = std::move(val_src_moved);</div>
+<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span>}</div>
+<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span> </div>
+<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Value&gt;</div>
+<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#a2ac7e58548cfe7989835b11fdc97f02c">  214</a></span><a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#acd854f798e440e7f4a4c18c7b83443fc">Scoped_setter&lt;Value&gt;::Scoped_setter</a>(<a class="code hl_class" href="classflow_1_1util_1_1Scoped__setter.html">Scoped_setter</a>&amp;&amp; src_moved) : <span class="comment">// =default might work fine but to be clear/certain:</span></div>
+<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>  m_target_or_null(src_moved.m_target_or_null),</div>
+<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span>  m_saved_value(std::move(src_moved.m_saved_value))</div>
+<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span>{</div>
+<div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span>  assert(<a class="code hl_variable" href="classflow_1_1util_1_1Scoped__setter.html#ab36f9981921da6540fc5c308e4c19a9c">m_target_or_null</a> &amp;&amp; <span class="stringliteral">&quot;Should not be moving-from a thing that has already been moved-from.&quot;</span>);</div>
+<div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span> </div>
+<div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span>  src_moved.m_target_or_null = <span class="keyword">nullptr</span>;</div>
+<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span>  <span class="comment">// As promised: Now src_moved&#39;s dtor will no-op.</span></div>
+<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>}</div>
+<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span> </div>
+<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Value&gt;</div>
+<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"><a class="line" href="classflow_1_1util_1_1Scoped__setter.html#a12ca74f225f756458f872e6f0da60695">  225</a></span><a class="code hl_function" href="classflow_1_1util_1_1Scoped__setter.html#a12ca74f225f756458f872e6f0da60695">Scoped_setter&lt;Value&gt;::~Scoped_setter</a>()</div>
+<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span>{</div>
+<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span>  <span class="keywordflow">if</span> (m_target_or_null)</div>
+<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>  {</div>
+<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>    *m_target_or_null = std::move(m_saved_value);</div>
+<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span>  }</div>
+<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span>  <span class="comment">// else { `*this` must have been moved-from.  No-op. }</span></div>
+<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span>}</div>
+<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span> </div>
+<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span><span class="comment">// Free function template implementations.</span></div>
+<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span> </div>
+<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Time_unit, <span class="keyword">typename</span> N_items&gt;</div>
+<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a0f681afaf67a0f917cf43a7ae893a015">  237</a></span><span class="keywordtype">double</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a0f681afaf67a0f917cf43a7ae893a015">to_mbit_per_sec</a>(N_items items_per_time, <span class="keywordtype">size_t</span> bits_per_item)</div>
+<div class="line"><a id="l00238" name="l00238"></a><span class="lineno">  238</span>{</div>
+<div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span>  <span class="comment">/* Let there be U/W seconds per Time_unit.  Then the following holds:</span></div>
+<div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span><span class="comment">   * items_per_time items/Time_units * W/U Time_units/second * bits_per_item bits/item</span></div>
+<div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span><span class="comment">   *   * 1/(1000*1000) megabits/bits</span></div>
+<div class="line"><a id="l00243" name="l00243"></a><span class="lineno">  243</span><span class="comment">   *   = items_per_time * W / U * bits_per_item / 1000 / 1000 megabits/second.</span></div>
+<div class="line"><a id="l00244" name="l00244"></a><span class="lineno">  244</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span><span class="comment">   * Notice the units work out.  W and U are conveniently available in Time_unit::period, which is a boost::ratio. */</span></div>
+<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span> </div>
+<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span>  <span class="keywordflow">return</span></div>
+<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span>    <span class="comment">/* This zealously converts everything to double ASAP to avoid overflow.  Could probably speed things up a bit</span></div>
+<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span><span class="comment">     * by postponing some of those conversions until after some integer multiplications, but then overflows could</span></div>
+<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span><span class="comment">     * creep in.  It&#39;s best not to assume too much about the values of den and num, as this function is meant to</span></div>
+<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span><span class="comment">     * be rather adaptable to various situations.  I did try to avoid unnecessary divisions though in favor of</span></div>
+<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span><span class="comment">     * multiplications, sort of guessing the latter are faster.  Or not... *shrug*. */</span></div>
+<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span>    double(items_per_time) * double(bits_per_item) * double(Time_unit::period::den)</div>
+<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span>    / (double(Time_unit::period::num) * double(1000 * 1000));</div>
+<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span>}</div>
+<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span> </div>
+<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Integer&gt;</div>
+<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a6b7316b3ed6d89f54c91e17c2aab101e">  258</a></span>Integer <a class="code hl_function" href="namespaceflow_1_1util.html#a6b7316b3ed6d89f54c91e17c2aab101e">ceil_div</a>(Integer dividend, Integer divisor)</div>
+<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span>{</div>
+<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span>  <span class="comment">// ceil(A : B) = (A + B - 1) / B, where : is floating point division, while / is integer division.</span></div>
+<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span>  <span class="keyword">static_assert</span>(std::is_integral_v&lt;Integer&gt;, <span class="stringliteral">&quot;ceil_div&lt;T&gt;: T must be an integer type.&quot;</span>);</div>
+<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span>  assert(dividend &gt;= 0);</div>
+<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span>  assert(divisor &gt; 0);</div>
+<div class="line"><a id="l00264" name="l00264"></a><span class="lineno">  264</span> </div>
+<div class="line"><a id="l00265" name="l00265"></a><span class="lineno">  265</span>  <span class="keywordflow">return</span> (dividend + divisor - 1) / divisor;</div>
+<div class="line"><a id="l00266" name="l00266"></a><span class="lineno">  266</span>  <span class="comment">/* (Could one do further bitwise trickery?  Perhaps but let optimizer do it.  Wouldn&#39;t optimizer also just</span></div>
+<div class="line"><a id="l00267" name="l00267"></a><span class="lineno">  267</span><span class="comment">   * optimize a literal floating-point `ceil(a / b)`?  Well, no.  Probably not.  So we wrote this function.) */</span></div>
+<div class="line"><a id="l00268" name="l00268"></a><span class="lineno">  268</span>}</div>
+<div class="line"><a id="l00269" name="l00269"></a><span class="lineno">  269</span> </div>
+<div class="line"><a id="l00270" name="l00270"></a><span class="lineno">  270</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
+<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#ab10bc9e8bef148f875aa743fe0852743">  271</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#ab10bc9e8bef148f875aa743fe0852743">in_closed_range</a>(T <span class="keyword">const</span> &amp; min_val, T <span class="keyword">const</span> &amp; val, T <span class="keyword">const</span> &amp; max_val)</div>
+<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span>{</div>
+<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span>  <span class="comment">// This writes &quot;(min_val &lt;= val) &amp;&amp; (val &lt;= max_val)&quot; by using only &lt;, to support the greatest number of types.</span></div>
+<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span>  <span class="keywordflow">return</span> ((min_val &lt; val) || (!(val &lt; min_val))) &amp;&amp;</div>
+<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span>         ((val &lt; max_val) || (!(max_val &lt; val)));</div>
+<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span>}</div>
+<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span> </div>
+<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
+<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a8ae762ea4f743a98a73953d7f9ec2164">  279</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a8ae762ea4f743a98a73953d7f9ec2164">in_open_closed_range</a>(T <span class="keyword">const</span> &amp; min_val, T <span class="keyword">const</span> &amp; val, T <span class="keyword">const</span> &amp; max_val)</div>
+<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span>{</div>
+<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span>  <span class="comment">// This writes &quot;(min_val &lt; val) &amp;&amp; (val &lt;= max_val)&quot; by using only &lt;, to support the greatest number of types.</span></div>
+<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span>  <span class="keywordflow">return</span> (min_val &lt; val) &amp;&amp;</div>
+<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span>         ((val &lt; max_val) || (!(max_val &lt; val)));</div>
+<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span>}</div>
+<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span> </div>
+<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
+<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a024ddda9acb2b66f2a1b35cdb0c016aa">  287</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a024ddda9acb2b66f2a1b35cdb0c016aa">in_closed_open_range</a>(T <span class="keyword">const</span> &amp; min_val, T <span class="keyword">const</span> &amp; val, T <span class="keyword">const</span> &amp; max_val)</div>
+<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span>{</div>
+<div class="line"><a id="l00289" name="l00289"></a><span class="lineno">  289</span>  <span class="comment">// This writes &quot;(val &lt; max_val) &amp;&amp; (min_val &lt;= val)&quot; by using only &lt;, to support the greatest number of types.</span></div>
+<div class="line"><a id="l00290" name="l00290"></a><span class="lineno">  290</span>  <span class="keywordflow">return</span> (val &lt; max_val) &amp;&amp;</div>
+<div class="line"><a id="l00291" name="l00291"></a><span class="lineno">  291</span>         ((min_val &lt; val) || (!(val &lt; min_val)));</div>
+<div class="line"><a id="l00292" name="l00292"></a><span class="lineno">  292</span>}</div>
+<div class="line"><a id="l00293" name="l00293"></a><span class="lineno">  293</span> </div>
+<div class="line"><a id="l00294" name="l00294"></a><span class="lineno">  294</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
+<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a733448fee07c2a77e343a3f1590ff82e">  295</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a733448fee07c2a77e343a3f1590ff82e">in_open_open_range</a>(T <span class="keyword">const</span> &amp; min_val, T <span class="keyword">const</span> &amp; val, T <span class="keyword">const</span> &amp; max_val)</div>
+<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span>{</div>
+<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span>  <span class="keywordflow">return</span> (min_val &lt; val) &amp;&amp; (val &lt; max_val);</div>
+<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span>}</div>
+<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span> </div>
+<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Container&gt;</div>
+<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">  301</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">key_exists</a>(<span class="keyword">const</span> Container&amp; container, <span class="keyword">const</span> <span class="keyword">typename</span> Container::key_type&amp; key)</div>
+<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span>{</div>
+<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span>  <span class="keywordflow">return</span> container.find(key) != container.end();</div>
+<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span>}</div>
+<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span> </div>
+<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Cleanup_func&gt;</div>
+<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">  307</a></span><a class="code hl_typedef" href="namespaceflow_1_1util.html#ab22fd89e165a9e6deaa174bc0dfdc8de">Auto_cleanup</a> <a class="code hl_function" href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">setup_auto_cleanup</a>(<span class="keyword">const</span> Cleanup_func&amp; func)</div>
+<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span>{</div>
+<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span>  <span class="comment">/* This trick, from shared_ptr or bind Boost docs (if I recall correctly), uses shared_ptr&#39;s deleter feature.  The</span></div>
+<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span><span class="comment">   * Auto_cleanup gains &quot;ownership&quot; of null pointer, purely for the purpose of running a deleter on it when the object</span></div>
+<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span><span class="comment">   * goes out of scope sometime later.  Deleting 0 itself would have been useless no-op, and instead we ignore the null</span></div>
+<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span><span class="comment">   * and simply call user&#39;s func(), which is what the goal is.</span></div>
+<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span><span class="comment">   * Subtlety: shared_ptr docs say the passed-in deleter is saved by copy, so we needn&#39;t worry about it disappearing</span></div>
+<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span><span class="comment">   * after we return.</span></div>
+<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span><span class="comment">   *</span></div>
+<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span><span class="comment">   * Subtlety: we need to make a copy (via capture) of func, as there&#39;s zero guarantee (and low likelihood in practice)</span></div>
+<div class="line"><a id="l00318" name="l00318"></a><span class="lineno">  318</span><span class="comment">   * that func is a valid object at the time cleanup is actually needed (sometime after we return). */</span></div>
+<div class="line"><a id="l00319" name="l00319"></a><span class="lineno">  319</span>  <span class="keywordflow">return</span> <a class="code hl_typedef" href="namespaceflow_1_1util.html#ab22fd89e165a9e6deaa174bc0dfdc8de">Auto_cleanup</a>(<span class="keyword">static_cast&lt;</span><span class="keywordtype">void</span>*<span class="keyword">&gt;</span>(0),</div>
+<div class="line"><a id="l00320" name="l00320"></a><span class="lineno">  320</span>                      [func](<span class="keywordtype">void</span>*) { func(); });</div>
+<div class="line"><a id="l00321" name="l00321"></a><span class="lineno">  321</span>}</div>
+<div class="line"><a id="l00322" name="l00322"></a><span class="lineno">  322</span> </div>
+<div class="line"><a id="l00323" name="l00323"></a><span class="lineno">  323</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Minuend, <span class="keyword">typename</span> Subtrahend&gt;</div>
+<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">  324</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">subtract_with_floor</a>(Minuend* minuend, <span class="keyword">const</span> Subtrahend&amp; subtrahend, <span class="keyword">const</span> Minuend&amp; floor)</div>
+<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span>{</div>
+<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span>  assert(minuend);</div>
+<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span> </div>
+<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span>  <span class="comment">/* Basically just avoid implicit conversions and anything that mind overflow or underflow.</span></div>
+<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span><span class="comment">   * The one underflow we allow is the subtraction of `floor`: doc header says keep `floor` small.</span></div>
+<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span><span class="comment">   * So it&#39;s their problem if it&#39;s not. */</span></div>
+<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span> </div>
+<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span>  <span class="keyword">const</span> Minuend converted_subtrahend = Minuend(subtrahend);</div>
 <div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span> </div>
-<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
-<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a3ce0e3794a3a84dd26b4aa7b013f6276">  335</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceflow_1_1util.html#af92e6183c2071f4166d4b5a91f50d70c">feed_args_to_ostream</a>(std::ostream* os, T <span class="keyword">const</span> &amp; only_ostream_arg)</div>
-<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span>{</div>
-<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span>  <span class="comment">// Induction base.</span></div>
-<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span>  *os &lt;&lt; only_ostream_arg;</div>
-<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span>}</div>
-<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span> </div>
-<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> ...T&gt;</div>
-<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">  342</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">ostream_op_to_string</a>(std::string* target_str, T <span class="keyword">const</span> &amp;... ostream_args)</div>
-<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span>{</div>
-<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span>  <span class="keyword">using </span>std::flush;</div>
-<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span> </div>
-<div class="line"><a id="l00346" name="l00346"></a><span class="lineno">  346</span>  <span class="comment">/* Pushes characters directly onto an `std::string`, instead of doing so into an `ostringstream` and then getting it</span></div>
-<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span><span class="comment">   * by copy via `ostringstream::copy()`.  This is for performance and may make a large difference</span></div>
-<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span><span class="comment">   * overall, if this is used in logging for example.  However, Thread_local_string_appender accomplishes</span></div>
-<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span><span class="comment">   * better performance still and some other features. */</span></div>
-<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span>  <a class="code hl_class" href="classflow_1_1util_1_1String__ostream.html">String_ostream</a> os(target_str);</div>
-<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#af92e6183c2071f4166d4b5a91f50d70c">feed_args_to_ostream</a>(&amp;(os.<a class="code hl_function" href="classflow_1_1util_1_1String__ostream.html#a7e64b069ae0e221952068c13fdc0f080">os</a>()), ostream_args...);</div>
-<div class="line"><a id="l00352" name="l00352"></a><span class="lineno">  352</span>  os.<a class="code hl_function" href="classflow_1_1util_1_1String__ostream.html#a7e64b069ae0e221952068c13fdc0f080">os</a>() &lt;&lt; flush;</div>
-<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span>}</div>
-<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span> </div>
-<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> ...T&gt;</div>
-<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">  356</a></span>std::string <a class="code hl_function" href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">ostream_op_string</a>(T <span class="keyword">const</span> &amp;... ostream_args)</div>
-<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span>{</div>
-<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span>  <span class="keyword">using </span>std::string;</div>
-<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span> </div>
-<div class="line"><a id="l00360" name="l00360"></a><span class="lineno">  360</span>  <span class="keywordtype">string</span> result;</div>
-<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">ostream_op_to_string</a>(&amp;result, ostream_args...);</div>
-<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span>  <span class="keywordflow">return</span> result;</div>
-<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span>}</div>
-<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span> </div>
-<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Map, <span class="keyword">typename</span> Sequence&gt;</div>
-<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a0a873d1abeac7a29822e940adf4f06c9">  366</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a0a873d1abeac7a29822e940adf4f06c9">sequence_to_inverted_lookup_map</a></div>
-<div class="line"><a id="l00367" name="l00367"></a><span class="lineno">  367</span>       (Sequence <span class="keyword">const</span> &amp; src_seq, Map* target_map,</div>
-<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span>        <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keyword">typename</span> Map::mapped_type (<span class="keywordtype">size_t</span>)&gt;&amp; idx_to_map_val_func)</div>
-<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span>{</div>
-<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span>  <span class="keywordtype">size_t</span> idx = 0;</div>
-<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>&amp; src_element : src_seq)</div>
-<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span>  {</div>
-<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span>    (*target_map)[src_element] = idx_to_map_val_func(idx);</div>
-<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span>    ++idx;</div>
-<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span>  }</div>
-<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span>}</div>
-<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span> </div>
-<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Map, <span class="keyword">typename</span> Sequence&gt;</div>
-<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a002c9a2f7629dfe3fdfa5632eda30dbd">  379</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a0a873d1abeac7a29822e940adf4f06c9">sequence_to_inverted_lookup_map</a>(Sequence <span class="keyword">const</span> &amp; src_seq, Map* target_map)</div>
-<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span>{</div>
-<div class="line"><a id="l00381" name="l00381"></a><span class="lineno">  381</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#a0a873d1abeac7a29822e940adf4f06c9">sequence_to_inverted_lookup_map</a>(src_seq, target_map, [](<span class="keywordtype">size_t</span> idx) -&gt; <span class="keywordtype">size_t</span></div>
-<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span>  {</div>
-<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span>    <span class="keywordflow">return</span> idx;</div>
-<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span>  });</div>
-<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span>}</div>
-<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span> </div>
-<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
-<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#aa132928b364caefca5c3821e019924bf">  388</a></span>std::ostream&amp; <a class="code hl_function" href="namespaceflow_1_1util.html#aa132928b364caefca5c3821e019924bf">buffers_to_ostream</a>(std::ostream&amp; os,</div>
-<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span>                                 <span class="keyword">const</span> Const_buffer_sequence&amp; data,</div>
-<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span>                                 <span class="keyword">const</span> std::string&amp; indentation,</div>
-<div class="line"><a id="l00391" name="l00391"></a><span class="lineno">  391</span>                                 <span class="keywordtype">size_t</span> bytes_per_line)</div>
-<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span>{</div>
-<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span>  <span class="keyword">using </span>boost::io::ios_fill_saver;</div>
-<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span>  <span class="keyword">using </span>boost::io::ios_flags_saver;</div>
-<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span>  <span class="keyword">using </span>boost::io::ios_width_saver;</div>
-<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span>  <span class="keyword">using </span>boost::asio::buffers_iterator;</div>
-<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span>  <span class="keyword">using </span>std::isprint;</div>
-<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span> </div>
-<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span>  <span class="comment">/* This sweet type will iterate over the buffer sequence (jumping between contained buffers, if ther are &gt; 1).</span></div>
-<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span><span class="comment">   * If `Bufs_iter it`, then *it is of type uint8_t. */</span></div>
-<div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span>  <span class="keyword">using </span>Bufs_iter = buffers_iterator&lt;Const_buffer_sequence, uint8_t&gt;;</div>
+<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span>  <span class="comment">// min - sub &lt;= floor &lt;===&gt; min - floor &lt;= sub.</span></div>
+<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span>  <span class="keywordflow">if</span> ((*minuend - floor) &lt;= converted_subtrahend)</div>
+<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span>  {</div>
+<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span>    *minuend = floor;</div>
+<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span>    <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
+<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span>  }</div>
+<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span>  <span class="comment">// else</span></div>
+<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span>  *minuend -= converted_subtrahend;</div>
+<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
+<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span>}</div>
+<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span> </div>
+<div class="line"><a id="l00345" name="l00345"></a><span class="lineno">  345</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> From, <span class="keyword">typename</span> To&gt;</div>
+<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a67eecb5096dabfaff3d02c419b304540">  346</a></span><span class="keywordtype">size_t</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a67eecb5096dabfaff3d02c419b304540">size_unit_convert</a>(From num_froms)</div>
+<div class="line"><a id="l00347" name="l00347"></a><span class="lineno">  347</span>{</div>
+<div class="line"><a id="l00348" name="l00348"></a><span class="lineno">  348</span>  <span class="keywordflow">return</span> ((num_froms * <span class="keyword">sizeof</span>(From)) + <span class="keyword">sizeof</span>(To) - 1) / <span class="keyword">sizeof</span>(To);</div>
+<div class="line"><a id="l00349" name="l00349"></a><span class="lineno">  349</span>}</div>
+<div class="line"><a id="l00350" name="l00350"></a><span class="lineno">  350</span> </div>
+<div class="line"><a id="l00351" name="l00351"></a><span class="lineno">  351</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> T1, <span class="keyword">typename</span> ...T_rest&gt;</div>
+<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#af92e6183c2071f4166d4b5a91f50d70c">  352</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceflow_1_1util.html#af92e6183c2071f4166d4b5a91f50d70c">feed_args_to_ostream</a>(std::ostream* os, T1 <span class="keyword">const</span> &amp; ostream_arg1, T_rest <span class="keyword">const</span> &amp;... remaining_ostream_args)</div>
+<div class="line"><a id="l00353" name="l00353"></a><span class="lineno">  353</span>{</div>
+<div class="line"><a id="l00354" name="l00354"></a><span class="lineno">  354</span>  <span class="comment">// Induction step for variadic template.</span></div>
+<div class="line"><a id="l00355" name="l00355"></a><span class="lineno">  355</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#af92e6183c2071f4166d4b5a91f50d70c">feed_args_to_ostream</a>(os, ostream_arg1);</div>
+<div class="line"><a id="l00356" name="l00356"></a><span class="lineno">  356</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#af92e6183c2071f4166d4b5a91f50d70c">feed_args_to_ostream</a>(os, remaining_ostream_args...);</div>
+<div class="line"><a id="l00357" name="l00357"></a><span class="lineno">  357</span>}</div>
+<div class="line"><a id="l00358" name="l00358"></a><span class="lineno">  358</span> </div>
+<div class="line"><a id="l00359" name="l00359"></a><span class="lineno">  359</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
+<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a3ce0e3794a3a84dd26b4aa7b013f6276">  360</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceflow_1_1util.html#af92e6183c2071f4166d4b5a91f50d70c">feed_args_to_ostream</a>(std::ostream* os, T <span class="keyword">const</span> &amp; only_ostream_arg)</div>
+<div class="line"><a id="l00361" name="l00361"></a><span class="lineno">  361</span>{</div>
+<div class="line"><a id="l00362" name="l00362"></a><span class="lineno">  362</span>  <span class="comment">// Induction base.</span></div>
+<div class="line"><a id="l00363" name="l00363"></a><span class="lineno">  363</span>  *os &lt;&lt; only_ostream_arg;</div>
+<div class="line"><a id="l00364" name="l00364"></a><span class="lineno">  364</span>}</div>
+<div class="line"><a id="l00365" name="l00365"></a><span class="lineno">  365</span> </div>
+<div class="line"><a id="l00366" name="l00366"></a><span class="lineno">  366</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> ...T&gt;</div>
+<div class="line"><a id="l00367" name="l00367"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">  367</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">ostream_op_to_string</a>(std::string* target_str, T <span class="keyword">const</span> &amp;... ostream_args)</div>
+<div class="line"><a id="l00368" name="l00368"></a><span class="lineno">  368</span>{</div>
+<div class="line"><a id="l00369" name="l00369"></a><span class="lineno">  369</span>  <span class="keyword">using </span>std::flush;</div>
+<div class="line"><a id="l00370" name="l00370"></a><span class="lineno">  370</span> </div>
+<div class="line"><a id="l00371" name="l00371"></a><span class="lineno">  371</span>  <span class="comment">/* Pushes characters directly onto an `std::string`, instead of doing so into an `ostringstream` and then getting it</span></div>
+<div class="line"><a id="l00372" name="l00372"></a><span class="lineno">  372</span><span class="comment">   * by copy via `ostringstream::copy()`.  This is for performance and may make a large difference</span></div>
+<div class="line"><a id="l00373" name="l00373"></a><span class="lineno">  373</span><span class="comment">   * overall, if this is used in logging for example.  However, Thread_local_string_appender accomplishes</span></div>
+<div class="line"><a id="l00374" name="l00374"></a><span class="lineno">  374</span><span class="comment">   * better performance still and some other features. */</span></div>
+<div class="line"><a id="l00375" name="l00375"></a><span class="lineno">  375</span>  <a class="code hl_class" href="classflow_1_1util_1_1String__ostream.html">String_ostream</a> os(target_str);</div>
+<div class="line"><a id="l00376" name="l00376"></a><span class="lineno">  376</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#af92e6183c2071f4166d4b5a91f50d70c">feed_args_to_ostream</a>(&amp;(os.<a class="code hl_function" href="classflow_1_1util_1_1String__ostream.html#a7e64b069ae0e221952068c13fdc0f080">os</a>()), ostream_args...);</div>
+<div class="line"><a id="l00377" name="l00377"></a><span class="lineno">  377</span>  os.<a class="code hl_function" href="classflow_1_1util_1_1String__ostream.html#a7e64b069ae0e221952068c13fdc0f080">os</a>() &lt;&lt; flush;</div>
+<div class="line"><a id="l00378" name="l00378"></a><span class="lineno">  378</span>}</div>
+<div class="line"><a id="l00379" name="l00379"></a><span class="lineno">  379</span> </div>
+<div class="line"><a id="l00380" name="l00380"></a><span class="lineno">  380</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> ...T&gt;</div>
+<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">  381</a></span>std::string <a class="code hl_function" href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">ostream_op_string</a>(T <span class="keyword">const</span> &amp;... ostream_args)</div>
+<div class="line"><a id="l00382" name="l00382"></a><span class="lineno">  382</span>{</div>
+<div class="line"><a id="l00383" name="l00383"></a><span class="lineno">  383</span>  <span class="keyword">using </span>std::string;</div>
+<div class="line"><a id="l00384" name="l00384"></a><span class="lineno">  384</span> </div>
+<div class="line"><a id="l00385" name="l00385"></a><span class="lineno">  385</span>  <span class="keywordtype">string</span> result;</div>
+<div class="line"><a id="l00386" name="l00386"></a><span class="lineno">  386</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#a8afd30c50bcd670d45442df49d1da484">ostream_op_to_string</a>(&amp;result, ostream_args...);</div>
+<div class="line"><a id="l00387" name="l00387"></a><span class="lineno">  387</span>  <span class="keywordflow">return</span> result;</div>
+<div class="line"><a id="l00388" name="l00388"></a><span class="lineno">  388</span>}</div>
+<div class="line"><a id="l00389" name="l00389"></a><span class="lineno">  389</span> </div>
+<div class="line"><a id="l00390" name="l00390"></a><span class="lineno">  390</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Map, <span class="keyword">typename</span> Sequence&gt;</div>
+<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a0a873d1abeac7a29822e940adf4f06c9">  391</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a0a873d1abeac7a29822e940adf4f06c9">sequence_to_inverted_lookup_map</a></div>
+<div class="line"><a id="l00392" name="l00392"></a><span class="lineno">  392</span>       (Sequence <span class="keyword">const</span> &amp; src_seq, Map* target_map,</div>
+<div class="line"><a id="l00393" name="l00393"></a><span class="lineno">  393</span>        <span class="keyword">const</span> <a class="code hl_class" href="classflow_1_1Function.html">Function</a>&lt;<span class="keyword">typename</span> Map::mapped_type (<span class="keywordtype">size_t</span>)&gt;&amp; idx_to_map_val_func)</div>
+<div class="line"><a id="l00394" name="l00394"></a><span class="lineno">  394</span>{</div>
+<div class="line"><a id="l00395" name="l00395"></a><span class="lineno">  395</span>  <span class="keywordtype">size_t</span> idx = 0;</div>
+<div class="line"><a id="l00396" name="l00396"></a><span class="lineno">  396</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span>&amp; src_element : src_seq)</div>
+<div class="line"><a id="l00397" name="l00397"></a><span class="lineno">  397</span>  {</div>
+<div class="line"><a id="l00398" name="l00398"></a><span class="lineno">  398</span>    (*target_map)[src_element] = idx_to_map_val_func(idx);</div>
+<div class="line"><a id="l00399" name="l00399"></a><span class="lineno">  399</span>    ++idx;</div>
+<div class="line"><a id="l00400" name="l00400"></a><span class="lineno">  400</span>  }</div>
+<div class="line"><a id="l00401" name="l00401"></a><span class="lineno">  401</span>}</div>
 <div class="line"><a id="l00402" name="l00402"></a><span class="lineno">  402</span> </div>
-<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span>  <span class="keyword">constexpr</span> <span class="keywordtype">size_t</span> BYTES_PER_LINE_DEFAULT = 16;</div>
-<div class="line"><a id="l00404" name="l00404"></a><span class="lineno">  404</span>  <span class="keywordtype">bool</span> single_line_mode = <span class="keyword">false</span>;</div>
-<div class="line"><a id="l00405" name="l00405"></a><span class="lineno">  405</span>  <span class="keywordflow">if</span> (bytes_per_line == 0)</div>
-<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span>  {</div>
-<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span>    bytes_per_line = BYTES_PER_LINE_DEFAULT;</div>
-<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span>  }</div>
-<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (bytes_per_line == <span class="keywordtype">size_t</span>(-1))</div>
-<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span>  {</div>
-<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span>    <span class="comment">/* Firstly just pretend exactly the bytes in the whole input = &quot;max&quot; bytes per line.</span></div>
-<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span><span class="comment">     * This accomplishes the bulk of what &quot;single-line mode&quot; means. */</span></div>
-<div class="line"><a id="l00413" name="l00413"></a><span class="lineno">  413</span>    bytes_per_line = buffer_size(data);</div>
-<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span>    <span class="comment">// A bit slow potentially to need to enumerate all scattered buffers.  Eh.  Contract said we should be assumed slow.</span></div>
-<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span> </div>
-<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span>    <span class="comment">// The rest of what it means is lacking a newline at the end in single-line mode.  So just remember that part.</span></div>
-<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span>    single_line_mode = <span class="keyword">true</span>;</div>
-<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span>  }</div>
-<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span> </div>
-<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span>  <span class="comment">// Ensure format settings return to their previous values subsequently.</span></div>
-<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span>  ios_flags_saver flags_saver(os);</div>
-<div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span>  ios_fill_saver fill_saver(os);</div>
-<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span>  ios_width_saver width_saver(os);</div>
-<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span> </div>
-<div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span>  <span class="comment">/* Set formatting and output numeric value (hex) of first byte.</span></div>
-<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span><span class="comment">   * @todo Is there a way to write this with manipulators too? */</span></div>
-<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span>  os.setf(std::ios::right | std::ios::hex, std::ios::adjustfield | std::ios::basefield);</div>
-<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span>  os &lt;&lt; std::setfill(<span class="charliteral">&#39;0&#39;</span>);</div>
-<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span> </div>
-<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span>  <span class="keyword">const</span> Bufs_iter end_byte_it = Bufs_iter::end(data);</div>
-<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span> </div>
-<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span>  <span class="keywordflow">for</span> (Bufs_iter cur_byte_it = Bufs_iter::begin(data);</div>
-<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span>       cur_byte_it != end_byte_it;</div>
-<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span>       <span class="comment">/* Advancing of cur_byte_it occurs within body of loop. */</span>)</div>
+<div class="line"><a id="l00403" name="l00403"></a><span class="lineno">  403</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Map, <span class="keyword">typename</span> Sequence&gt;</div>
+<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a002c9a2f7629dfe3fdfa5632eda30dbd">  404</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="namespaceflow_1_1util.html#a0a873d1abeac7a29822e940adf4f06c9">sequence_to_inverted_lookup_map</a>(Sequence <span class="keyword">const</span> &amp; src_seq, Map* target_map)</div>
+<div class="line"><a id="l00405" name="l00405"></a><span class="lineno">  405</span>{</div>
+<div class="line"><a id="l00406" name="l00406"></a><span class="lineno">  406</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#a0a873d1abeac7a29822e940adf4f06c9">sequence_to_inverted_lookup_map</a>(src_seq, target_map, [](<span class="keywordtype">size_t</span> idx) -&gt; <span class="keywordtype">size_t</span></div>
+<div class="line"><a id="l00407" name="l00407"></a><span class="lineno">  407</span>  {</div>
+<div class="line"><a id="l00408" name="l00408"></a><span class="lineno">  408</span>    <span class="keywordflow">return</span> idx;</div>
+<div class="line"><a id="l00409" name="l00409"></a><span class="lineno">  409</span>  });</div>
+<div class="line"><a id="l00410" name="l00410"></a><span class="lineno">  410</span>}</div>
+<div class="line"><a id="l00411" name="l00411"></a><span class="lineno">  411</span> </div>
+<div class="line"><a id="l00412" name="l00412"></a><span class="lineno">  412</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
+<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#aa132928b364caefca5c3821e019924bf">  413</a></span>std::ostream&amp; <a class="code hl_function" href="namespaceflow_1_1util.html#aa132928b364caefca5c3821e019924bf">buffers_to_ostream</a>(std::ostream&amp; os,</div>
+<div class="line"><a id="l00414" name="l00414"></a><span class="lineno">  414</span>                                 <span class="keyword">const</span> Const_buffer_sequence&amp; data,</div>
+<div class="line"><a id="l00415" name="l00415"></a><span class="lineno">  415</span>                                 <span class="keyword">const</span> std::string&amp; indentation,</div>
+<div class="line"><a id="l00416" name="l00416"></a><span class="lineno">  416</span>                                 <span class="keywordtype">size_t</span> bytes_per_line)</div>
+<div class="line"><a id="l00417" name="l00417"></a><span class="lineno">  417</span>{</div>
+<div class="line"><a id="l00418" name="l00418"></a><span class="lineno">  418</span>  <span class="keyword">using </span>boost::io::ios_fill_saver;</div>
+<div class="line"><a id="l00419" name="l00419"></a><span class="lineno">  419</span>  <span class="keyword">using </span>boost::io::ios_flags_saver;</div>
+<div class="line"><a id="l00420" name="l00420"></a><span class="lineno">  420</span>  <span class="keyword">using </span>boost::io::ios_width_saver;</div>
+<div class="line"><a id="l00421" name="l00421"></a><span class="lineno">  421</span>  <span class="keyword">using </span>boost::asio::buffers_iterator;</div>
+<div class="line"><a id="l00422" name="l00422"></a><span class="lineno">  422</span>  <span class="keyword">using </span>std::isprint;</div>
+<div class="line"><a id="l00423" name="l00423"></a><span class="lineno">  423</span> </div>
+<div class="line"><a id="l00424" name="l00424"></a><span class="lineno">  424</span>  <span class="comment">/* This sweet type will iterate over the buffer sequence (jumping between contained buffers, if ther are &gt; 1).</span></div>
+<div class="line"><a id="l00425" name="l00425"></a><span class="lineno">  425</span><span class="comment">   * If `Bufs_iter it`, then *it is of type uint8_t. */</span></div>
+<div class="line"><a id="l00426" name="l00426"></a><span class="lineno">  426</span>  <span class="keyword">using </span>Bufs_iter = buffers_iterator&lt;Const_buffer_sequence, uint8_t&gt;;</div>
+<div class="line"><a id="l00427" name="l00427"></a><span class="lineno">  427</span> </div>
+<div class="line"><a id="l00428" name="l00428"></a><span class="lineno">  428</span>  <span class="keyword">constexpr</span> <span class="keywordtype">size_t</span> BYTES_PER_LINE_DEFAULT = 16;</div>
+<div class="line"><a id="l00429" name="l00429"></a><span class="lineno">  429</span>  <span class="keywordtype">bool</span> single_line_mode = <span class="keyword">false</span>;</div>
+<div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span>  <span class="keywordflow">if</span> (bytes_per_line == 0)</div>
+<div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span>  {</div>
+<div class="line"><a id="l00432" name="l00432"></a><span class="lineno">  432</span>    bytes_per_line = BYTES_PER_LINE_DEFAULT;</div>
+<div class="line"><a id="l00433" name="l00433"></a><span class="lineno">  433</span>  }</div>
+<div class="line"><a id="l00434" name="l00434"></a><span class="lineno">  434</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (bytes_per_line == <span class="keywordtype">size_t</span>(-1))</div>
 <div class="line"><a id="l00435" name="l00435"></a><span class="lineno">  435</span>  {</div>
-<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span>    <span class="comment">// The for() loop around us guarantees there is at least this first byte.  Print the numeric value.</span></div>
-<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span>    os &lt;&lt; indentation &lt;&lt; <span class="charliteral">&#39;[&#39;</span></div>
-<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span>       &lt;&lt; std::setw(2) &lt;&lt; int(*cur_byte_it); <span class="comment">// Numeric value in hex.</span></div>
-<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span> </div>
-<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span>    <span class="comment">// Repeat for remaining bytes left in this line.  Stop at bytes/line limit, or if reached end of buffers.</span></div>
-<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span>    <span class="keywordtype">size_t</span> n_bytes_printed;</div>
-<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span>    <span class="keywordflow">for</span> ((n_bytes_printed = 1), ++cur_byte_it; <span class="comment">// Account for printing that first byte above.</span></div>
-<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span>         (n_bytes_printed != bytes_per_line) &amp;&amp; (cur_byte_it != end_byte_it);</div>
-<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span>         ++cur_byte_it, ++n_bytes_printed)</div>
-<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span>    {</div>
-<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span>      os &lt;&lt; <span class="charliteral">&#39; &#39;</span> &lt;&lt; std::setw(2) &lt;&lt; int(*cur_byte_it); <span class="comment">// Numeric value in hex.</span></div>
-<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span>    }</div>
-<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span> </div>
-<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span>    <span class="comment">// Spaces as if rest of line still had a few ghost values to print (space + 2 spaces for the hex digits).</span></div>
-<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> n_bytes_printed_including_padding = n_bytes_printed;</div>
-<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span>         n_bytes_printed_including_padding != bytes_per_line;</div>
-<div class="line"><a id="l00452" name="l00452"></a><span class="lineno">  452</span>         ++n_bytes_printed_including_padding)</div>
-<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span>    {</div>
-<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span>      os &lt;&lt; <span class="stringliteral">&quot;   &quot;</span>;</div>
-<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span>    }</div>
+<div class="line"><a id="l00436" name="l00436"></a><span class="lineno">  436</span>    <span class="comment">/* Firstly just pretend exactly the bytes in the whole input = &quot;max&quot; bytes per line.</span></div>
+<div class="line"><a id="l00437" name="l00437"></a><span class="lineno">  437</span><span class="comment">     * This accomplishes the bulk of what &quot;single-line mode&quot; means. */</span></div>
+<div class="line"><a id="l00438" name="l00438"></a><span class="lineno">  438</span>    bytes_per_line = buffer_size(data);</div>
+<div class="line"><a id="l00439" name="l00439"></a><span class="lineno">  439</span>    <span class="comment">// A bit slow potentially to need to enumerate all scattered buffers.  Eh.  Contract said we should be assumed slow.</span></div>
+<div class="line"><a id="l00440" name="l00440"></a><span class="lineno">  440</span> </div>
+<div class="line"><a id="l00441" name="l00441"></a><span class="lineno">  441</span>    <span class="comment">// The rest of what it means is lacking a newline at the end in single-line mode.  So just remember that part.</span></div>
+<div class="line"><a id="l00442" name="l00442"></a><span class="lineno">  442</span>    single_line_mode = <span class="keyword">true</span>;</div>
+<div class="line"><a id="l00443" name="l00443"></a><span class="lineno">  443</span>  }</div>
+<div class="line"><a id="l00444" name="l00444"></a><span class="lineno">  444</span> </div>
+<div class="line"><a id="l00445" name="l00445"></a><span class="lineno">  445</span>  <span class="comment">// Ensure format settings return to their previous values subsequently.</span></div>
+<div class="line"><a id="l00446" name="l00446"></a><span class="lineno">  446</span>  ios_flags_saver flags_saver(os);</div>
+<div class="line"><a id="l00447" name="l00447"></a><span class="lineno">  447</span>  ios_fill_saver fill_saver(os);</div>
+<div class="line"><a id="l00448" name="l00448"></a><span class="lineno">  448</span>  ios_width_saver width_saver(os);</div>
+<div class="line"><a id="l00449" name="l00449"></a><span class="lineno">  449</span> </div>
+<div class="line"><a id="l00450" name="l00450"></a><span class="lineno">  450</span>  <span class="comment">/* Set formatting and output numeric value (hex) of first byte.</span></div>
+<div class="line"><a id="l00451" name="l00451"></a><span class="lineno">  451</span><span class="comment">   * @todo Is there a way to write this with manipulators too? */</span></div>
+<div class="line"><a id="l00452" name="l00452"></a><span class="lineno">  452</span>  os.setf(std::ios::right | std::ios::hex, std::ios::adjustfield | std::ios::basefield);</div>
+<div class="line"><a id="l00453" name="l00453"></a><span class="lineno">  453</span>  os &lt;&lt; std::setfill(<span class="charliteral">&#39;0&#39;</span>);</div>
+<div class="line"><a id="l00454" name="l00454"></a><span class="lineno">  454</span> </div>
+<div class="line"><a id="l00455" name="l00455"></a><span class="lineno">  455</span>  <span class="keyword">const</span> Bufs_iter end_byte_it = Bufs_iter::end(data);</div>
 <div class="line"><a id="l00456" name="l00456"></a><span class="lineno">  456</span> </div>
-<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span>    <span class="comment">// Backtrack and print those same bytes -- this time as printable characters (when printable, else dots).</span></div>
-<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span>    cur_byte_it -= n_bytes_printed;</div>
-<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span> </div>
-<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span>    os &lt;&lt; <span class="charliteral">&#39;|&#39;</span>;</div>
-<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> n_chars_printed = 0;</div>
-<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span>         n_chars_printed != n_bytes_printed;</div>
-<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span>         ++cur_byte_it, ++n_chars_printed)</div>
-<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span>    {</div>
-<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span>      <span class="keywordtype">char</span> c = *cur_byte_it;</div>
-<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span>      os &lt;&lt; (isprint(c) ? c : <span class="charliteral">&#39;.&#39;</span>);</div>
-<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span>    }</div>
-<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span>    os &lt;&lt; <span class="charliteral">&#39;]&#39;</span>;</div>
-<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span>    <span class="keywordflow">if</span> (!single_line_mode)</div>
+<div class="line"><a id="l00457" name="l00457"></a><span class="lineno">  457</span>  <span class="keywordflow">for</span> (Bufs_iter cur_byte_it = Bufs_iter::begin(data);</div>
+<div class="line"><a id="l00458" name="l00458"></a><span class="lineno">  458</span>       cur_byte_it != end_byte_it;</div>
+<div class="line"><a id="l00459" name="l00459"></a><span class="lineno">  459</span>       <span class="comment">/* Advancing of cur_byte_it occurs within body of loop. */</span>)</div>
+<div class="line"><a id="l00460" name="l00460"></a><span class="lineno">  460</span>  {</div>
+<div class="line"><a id="l00461" name="l00461"></a><span class="lineno">  461</span>    <span class="comment">// The for() loop around us guarantees there is at least this first byte.  Print the numeric value.</span></div>
+<div class="line"><a id="l00462" name="l00462"></a><span class="lineno">  462</span>    os &lt;&lt; indentation &lt;&lt; <span class="charliteral">&#39;[&#39;</span></div>
+<div class="line"><a id="l00463" name="l00463"></a><span class="lineno">  463</span>       &lt;&lt; std::setw(2) &lt;&lt; int(*cur_byte_it); <span class="comment">// Numeric value in hex.</span></div>
+<div class="line"><a id="l00464" name="l00464"></a><span class="lineno">  464</span> </div>
+<div class="line"><a id="l00465" name="l00465"></a><span class="lineno">  465</span>    <span class="comment">// Repeat for remaining bytes left in this line.  Stop at bytes/line limit, or if reached end of buffers.</span></div>
+<div class="line"><a id="l00466" name="l00466"></a><span class="lineno">  466</span>    <span class="keywordtype">size_t</span> n_bytes_printed;</div>
+<div class="line"><a id="l00467" name="l00467"></a><span class="lineno">  467</span>    <span class="keywordflow">for</span> ((n_bytes_printed = 1), ++cur_byte_it; <span class="comment">// Account for printing that first byte above.</span></div>
+<div class="line"><a id="l00468" name="l00468"></a><span class="lineno">  468</span>         (n_bytes_printed != bytes_per_line) &amp;&amp; (cur_byte_it != end_byte_it);</div>
+<div class="line"><a id="l00469" name="l00469"></a><span class="lineno">  469</span>         ++cur_byte_it, ++n_bytes_printed)</div>
 <div class="line"><a id="l00470" name="l00470"></a><span class="lineno">  470</span>    {</div>
-<div class="line"><a id="l00471" name="l00471"></a><span class="lineno">  471</span>      os &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div>
+<div class="line"><a id="l00471" name="l00471"></a><span class="lineno">  471</span>      os &lt;&lt; <span class="charliteral">&#39; &#39;</span> &lt;&lt; std::setw(2) &lt;&lt; int(*cur_byte_it); <span class="comment">// Numeric value in hex.</span></div>
 <div class="line"><a id="l00472" name="l00472"></a><span class="lineno">  472</span>    }</div>
-<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span>  } <span class="comment">// for (cur_byte_it)</span></div>
-<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span> </div>
-<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span>  <span class="keywordflow">return</span> os;</div>
-<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span> </div>
-<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span>  <span class="comment">// The formatting changes will be restored here as the savers exit scope.</span></div>
-<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span>} <span class="comment">// buffers_to_ostream()</span></div>
-<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span> </div>
-<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
-<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">  481</a></span>std::string <a class="code hl_function" href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">buffers_dump_string</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <span class="keyword">const</span> std::string&amp; indentation,</div>
-<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span>                                <span class="keywordtype">size_t</span> bytes_per_line)</div>
-<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span>{</div>
-<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span>  <span class="keyword">using </span>std::flush;</div>
-<div class="line"><a id="l00485" name="l00485"></a><span class="lineno">  485</span>  <span class="keyword">using </span>std::string;</div>
-<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span> </div>
-<div class="line"><a id="l00487" name="l00487"></a><span class="lineno">  487</span>  <span class="comment">// See comment in ostream_op_to_string() which applies here too (re. perf).</span></div>
-<div class="line"><a id="l00488" name="l00488"></a><span class="lineno">  488</span> </div>
-<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span>  <span class="keywordtype">string</span> target_str;</div>
-<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span>  <a class="code hl_class" href="classflow_1_1util_1_1String__ostream.html">String_ostream</a> os(&amp;target_str);</div>
-<div class="line"><a id="l00491" name="l00491"></a><span class="lineno">  491</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#aa132928b364caefca5c3821e019924bf">buffers_to_ostream</a>(os.<a class="code hl_function" href="classflow_1_1util_1_1String__ostream.html#a7e64b069ae0e221952068c13fdc0f080">os</a>(), data, indentation, bytes_per_line);</div>
-<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span>  os.<a class="code hl_function" href="classflow_1_1util_1_1String__ostream.html#a7e64b069ae0e221952068c13fdc0f080">os</a>() &lt;&lt; flush;</div>
-<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span> </div>
-<div class="line"><a id="l00494" name="l00494"></a><span class="lineno">  494</span>  <span class="keywordflow">return</span> target_str;</div>
-<div class="line"><a id="l00495" name="l00495"></a><span class="lineno">  495</span>}</div>
-<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span> </div>
-<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Enum&gt;</div>
-<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a18a29d6a6e65c3b96c52b5cad5971266">  498</a></span>Enum <a class="code hl_function" href="namespaceflow_1_1util.html#a18a29d6a6e65c3b96c52b5cad5971266">istream_to_enum</a>(std::istream* is_ptr, Enum enum_default, Enum enum_sentinel,</div>
-<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span>                     <span class="keywordtype">bool</span> accept_num_encoding, <span class="keywordtype">bool</span> case_sensitive,</div>
-<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span>                     Enum enum_lowest)</div>
-<div class="line"><a id="l00501" name="l00501"></a><span class="lineno">  501</span>{</div>
-<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span>  <span class="keyword">using </span>boost::lexical_cast;</div>
-<div class="line"><a id="l00503" name="l00503"></a><span class="lineno">  503</span>  <span class="keyword">using </span>boost::bad_lexical_cast;</div>
-<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span>  <span class="keyword">using </span>boost::algorithm::equals;</div>
-<div class="line"><a id="l00505" name="l00505"></a><span class="lineno">  505</span>  <span class="keyword">using </span>boost::algorithm::is_iequal;</div>
-<div class="line"><a id="l00506" name="l00506"></a><span class="lineno">  506</span>  <span class="keyword">using </span>std::locale;</div>
-<div class="line"><a id="l00507" name="l00507"></a><span class="lineno">  507</span>  <span class="keyword">using </span>std::string;</div>
-<div class="line"><a id="l00508" name="l00508"></a><span class="lineno">  508</span>  <span class="keyword">using </span>std::isdigit;</div>
-<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span>  <span class="keyword">using </span>std::isalnum;</div>
-<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span>  <span class="keyword">using </span>Traits = std::char_traits&lt;char&gt;;</div>
-<div class="line"><a id="l00511" name="l00511"></a><span class="lineno">  511</span>  <span class="keyword">using </span>enum_t = std::underlying_type_t&lt;Enum&gt;;</div>
-<div class="line"><a id="l00512" name="l00512"></a><span class="lineno">  512</span> </div>
-<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span>  <span class="comment">// Reminder: There are various assumptions about Enum this takes for granted; behavior undefined otherwise.</span></div>
-<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span> </div>
-<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span>  assert(enum_t(enum_lowest) &gt;= 0); <span class="comment">// Otherwise we&#39;d have to allow &#39;-&#39; (minus sign), and we&#39;d... just rather not.</span></div>
-<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span>  <span class="keyword">auto</span>&amp; is = *is_ptr;</div>
-<div class="line"><a id="l00517" name="l00517"></a><span class="lineno">  517</span>  <span class="keyword">const</span> is_iequal i_equal_func(locale::classic());</div>
+<div class="line"><a id="l00473" name="l00473"></a><span class="lineno">  473</span> </div>
+<div class="line"><a id="l00474" name="l00474"></a><span class="lineno">  474</span>    <span class="comment">// Spaces as if rest of line still had a few ghost values to print (space + 2 spaces for the hex digits).</span></div>
+<div class="line"><a id="l00475" name="l00475"></a><span class="lineno">  475</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> n_bytes_printed_including_padding = n_bytes_printed;</div>
+<div class="line"><a id="l00476" name="l00476"></a><span class="lineno">  476</span>         n_bytes_printed_including_padding != bytes_per_line;</div>
+<div class="line"><a id="l00477" name="l00477"></a><span class="lineno">  477</span>         ++n_bytes_printed_including_padding)</div>
+<div class="line"><a id="l00478" name="l00478"></a><span class="lineno">  478</span>    {</div>
+<div class="line"><a id="l00479" name="l00479"></a><span class="lineno">  479</span>      os &lt;&lt; <span class="stringliteral">&quot;   &quot;</span>;</div>
+<div class="line"><a id="l00480" name="l00480"></a><span class="lineno">  480</span>    }</div>
+<div class="line"><a id="l00481" name="l00481"></a><span class="lineno">  481</span> </div>
+<div class="line"><a id="l00482" name="l00482"></a><span class="lineno">  482</span>    <span class="comment">// Backtrack and print those same bytes -- this time as printable characters (when printable, else dots).</span></div>
+<div class="line"><a id="l00483" name="l00483"></a><span class="lineno">  483</span>    cur_byte_it -= n_bytes_printed;</div>
+<div class="line"><a id="l00484" name="l00484"></a><span class="lineno">  484</span> </div>
+<div class="line"><a id="l00485" name="l00485"></a><span class="lineno">  485</span>    os &lt;&lt; <span class="charliteral">&#39;|&#39;</span>;</div>
+<div class="line"><a id="l00486" name="l00486"></a><span class="lineno">  486</span>    <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> n_chars_printed = 0;</div>
+<div class="line"><a id="l00487" name="l00487"></a><span class="lineno">  487</span>         n_chars_printed != n_bytes_printed;</div>
+<div class="line"><a id="l00488" name="l00488"></a><span class="lineno">  488</span>         ++cur_byte_it, ++n_chars_printed)</div>
+<div class="line"><a id="l00489" name="l00489"></a><span class="lineno">  489</span>    {</div>
+<div class="line"><a id="l00490" name="l00490"></a><span class="lineno">  490</span>      <span class="keywordtype">char</span> c = *cur_byte_it;</div>
+<div class="line"><a id="l00491" name="l00491"></a><span class="lineno">  491</span>      os &lt;&lt; (isprint(c) ? c : <span class="charliteral">&#39;.&#39;</span>);</div>
+<div class="line"><a id="l00492" name="l00492"></a><span class="lineno">  492</span>    }</div>
+<div class="line"><a id="l00493" name="l00493"></a><span class="lineno">  493</span>    os &lt;&lt; <span class="charliteral">&#39;]&#39;</span>;</div>
+<div class="line"><a id="l00494" name="l00494"></a><span class="lineno">  494</span>    <span class="keywordflow">if</span> (!single_line_mode)</div>
+<div class="line"><a id="l00495" name="l00495"></a><span class="lineno">  495</span>    {</div>
+<div class="line"><a id="l00496" name="l00496"></a><span class="lineno">  496</span>      os &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div>
+<div class="line"><a id="l00497" name="l00497"></a><span class="lineno">  497</span>    }</div>
+<div class="line"><a id="l00498" name="l00498"></a><span class="lineno">  498</span>  } <span class="comment">// for (cur_byte_it)</span></div>
+<div class="line"><a id="l00499" name="l00499"></a><span class="lineno">  499</span> </div>
+<div class="line"><a id="l00500" name="l00500"></a><span class="lineno">  500</span>  <span class="keywordflow">return</span> os;</div>
+<div class="line"><a id="l00501" name="l00501"></a><span class="lineno">  501</span> </div>
+<div class="line"><a id="l00502" name="l00502"></a><span class="lineno">  502</span>  <span class="comment">// The formatting changes will be restored here as the savers exit scope.</span></div>
+<div class="line"><a id="l00503" name="l00503"></a><span class="lineno">  503</span>} <span class="comment">// buffers_to_ostream()</span></div>
+<div class="line"><a id="l00504" name="l00504"></a><span class="lineno">  504</span> </div>
+<div class="line"><a id="l00505" name="l00505"></a><span class="lineno">  505</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Const_buffer_sequence&gt;</div>
+<div class="line"><a id="l00506" name="l00506"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">  506</a></span>std::string <a class="code hl_function" href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">buffers_dump_string</a>(<span class="keyword">const</span> Const_buffer_sequence&amp; data, <span class="keyword">const</span> std::string&amp; indentation,</div>
+<div class="line"><a id="l00507" name="l00507"></a><span class="lineno">  507</span>                                <span class="keywordtype">size_t</span> bytes_per_line)</div>
+<div class="line"><a id="l00508" name="l00508"></a><span class="lineno">  508</span>{</div>
+<div class="line"><a id="l00509" name="l00509"></a><span class="lineno">  509</span>  <span class="keyword">using </span>std::flush;</div>
+<div class="line"><a id="l00510" name="l00510"></a><span class="lineno">  510</span>  <span class="keyword">using </span>std::string;</div>
+<div class="line"><a id="l00511" name="l00511"></a><span class="lineno">  511</span> </div>
+<div class="line"><a id="l00512" name="l00512"></a><span class="lineno">  512</span>  <span class="comment">// See comment in ostream_op_to_string() which applies here too (re. perf).</span></div>
+<div class="line"><a id="l00513" name="l00513"></a><span class="lineno">  513</span> </div>
+<div class="line"><a id="l00514" name="l00514"></a><span class="lineno">  514</span>  <span class="keywordtype">string</span> target_str;</div>
+<div class="line"><a id="l00515" name="l00515"></a><span class="lineno">  515</span>  <a class="code hl_class" href="classflow_1_1util_1_1String__ostream.html">String_ostream</a> os(&amp;target_str);</div>
+<div class="line"><a id="l00516" name="l00516"></a><span class="lineno">  516</span>  <a class="code hl_function" href="namespaceflow_1_1util.html#aa132928b364caefca5c3821e019924bf">buffers_to_ostream</a>(os.<a class="code hl_function" href="classflow_1_1util_1_1String__ostream.html#a7e64b069ae0e221952068c13fdc0f080">os</a>(), data, indentation, bytes_per_line);</div>
+<div class="line"><a id="l00517" name="l00517"></a><span class="lineno">  517</span>  os.<a class="code hl_function" href="classflow_1_1util_1_1String__ostream.html#a7e64b069ae0e221952068c13fdc0f080">os</a>() &lt;&lt; flush;</div>
 <div class="line"><a id="l00518" name="l00518"></a><span class="lineno">  518</span> </div>
-<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span>  <span class="comment">// Read into `token` until (and not including) the first non-alphanumeric/underscore character or stream end.</span></div>
-<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span>  <span class="keywordtype">string</span> token;</div>
-<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span>  <span class="keywordtype">char</span> ch;</div>
-<div class="line"><a id="l00522" name="l00522"></a><span class="lineno">  522</span>  <span class="keywordflow">while</span> (((ch = is.peek()) != Traits::eof()) &amp;&amp; (isalnum(ch) || (ch == <span class="charliteral">&#39;_&#39;</span>)))</div>
-<div class="line"><a id="l00523" name="l00523"></a><span class="lineno">  523</span>  {</div>
-<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span>    token += ch;</div>
-<div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span>    is.get();</div>
-<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span>  }</div>
-<div class="line"><a id="l00527" name="l00527"></a><span class="lineno">  527</span> </div>
-<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span>  Enum val = enum_default;</div>
-<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span> </div>
-<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span>  <span class="keywordflow">if</span> (!token.empty())</div>
-<div class="line"><a id="l00531" name="l00531"></a><span class="lineno">  531</span>  {</div>
-<div class="line"><a id="l00532" name="l00532"></a><span class="lineno">  532</span>    <span class="keywordflow">if</span> (accept_num_encoding &amp;&amp; isdigit(token.front())) <span class="comment">// Hence ostream&lt;&lt; shouldn&#39;t serialize a digit-leading value.</span></div>
-<div class="line"><a id="l00533" name="l00533"></a><span class="lineno">  533</span>    {</div>
-<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span>      enum_t num_enum;</div>
-<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span>      <span class="keywordflow">try</span></div>
-<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span>      {</div>
-<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span>        num_enum = lexical_cast&lt;enum_t&gt;(token);</div>
-<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span>        <span class="comment">// This assumes a vanilla enum integer value ordering.</span></div>
-<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span>        <span class="keywordflow">if</span> ((num_enum &gt;= enum_t(enum_sentinel) || (num_enum &lt; enum_t(enum_lowest))))</div>
-<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span>        {</div>
-<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span>          num_enum = enum_t(enum_default);</div>
-<div class="line"><a id="l00542" name="l00542"></a><span class="lineno">  542</span>        }</div>
-<div class="line"><a id="l00543" name="l00543"></a><span class="lineno">  543</span>        val = Enum(num_enum);</div>
-<div class="line"><a id="l00544" name="l00544"></a><span class="lineno">  544</span>      }</div>
-<div class="line"><a id="l00545" name="l00545"></a><span class="lineno">  545</span>      <span class="keywordflow">catch</span> (<span class="keyword">const</span> bad_lexical_cast&amp; exc)</div>
-<div class="line"><a id="l00546" name="l00546"></a><span class="lineno">  546</span>      {</div>
-<div class="line"><a id="l00547" name="l00547"></a><span class="lineno">  547</span>        assert(val == enum_default);</div>
-<div class="line"><a id="l00548" name="l00548"></a><span class="lineno">  548</span>      }</div>
-<div class="line"><a id="l00549" name="l00549"></a><span class="lineno">  549</span>    } <span class="comment">// if (accept_num_encoding &amp;&amp; isdigit())</span></div>
-<div class="line"><a id="l00550" name="l00550"></a><span class="lineno">  550</span>    <span class="keywordflow">else</span> <span class="comment">// if (!(accept_num_encoding &amp;&amp; isdigit()))</span></div>
-<div class="line"><a id="l00551" name="l00551"></a><span class="lineno">  551</span>    {</div>
-<div class="line"><a id="l00552" name="l00552"></a><span class="lineno">  552</span>      enum_t idx;</div>
-<div class="line"><a id="l00553" name="l00553"></a><span class="lineno">  553</span>      <span class="comment">// This assumes a vanilla enum integer value ordering within this [closed range].</span></div>
-<div class="line"><a id="l00554" name="l00554"></a><span class="lineno">  554</span>      <span class="keywordflow">for</span> (idx = enum_t(enum_lowest); idx != enum_t(enum_sentinel); ++idx)</div>
-<div class="line"><a id="l00555" name="l00555"></a><span class="lineno">  555</span>      {</div>
-<div class="line"><a id="l00556" name="l00556"></a><span class="lineno">  556</span>        <span class="keyword">const</span> <span class="keyword">auto</span> candidate = Enum(idx);</div>
-<div class="line"><a id="l00557" name="l00557"></a><span class="lineno">  557</span>        <span class="comment">/* Note -- lexical_cast&lt;string&gt;(Enum) == (operator&lt;&lt;(ostringstream&amp;, Enum)).str() -- the symbolic</span></div>
-<div class="line"><a id="l00558" name="l00558"></a><span class="lineno">  558</span><span class="comment">         * encoding of Enum (as we promised to accept, case-[in]sensitively), not the numeric encoding.  The numeric</span></div>
-<div class="line"><a id="l00559" name="l00559"></a><span class="lineno">  559</span><span class="comment">         * encoding is checked-for in the `if (accept_num_encoding...)` branch above using a non-looping technique. */</span></div>
-<div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span>        <span class="keywordflow">if</span> (case_sensitive ? equals(token, lexical_cast&lt;string&gt;(candidate))</div>
-<div class="line"><a id="l00561" name="l00561"></a><span class="lineno">  561</span>                           : equals(token, lexical_cast&lt;string&gt;(candidate), i_equal_func))</div>
-<div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span>        {</div>
-<div class="line"><a id="l00563" name="l00563"></a><span class="lineno">  563</span>          val = candidate;</div>
-<div class="line"><a id="l00564" name="l00564"></a><span class="lineno">  564</span>          <span class="keywordflow">break</span>;</div>
-<div class="line"><a id="l00565" name="l00565"></a><span class="lineno">  565</span>        }</div>
-<div class="line"><a id="l00566" name="l00566"></a><span class="lineno">  566</span>      }</div>
-<div class="line"><a id="l00567" name="l00567"></a><span class="lineno">  567</span>      assert((idx != enum_t(enum_sentinel)) || (val == enum_default));</div>
-<div class="line"><a id="l00568" name="l00568"></a><span class="lineno">  568</span>    } <span class="comment">// else if (!(accept_num_encoding &amp;&amp; isdigit()))</span></div>
-<div class="line"><a id="l00569" name="l00569"></a><span class="lineno">  569</span>  } <span class="comment">// if (!token.empty())</span></div>
-<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span> </div>
-<div class="line"><a id="l00571" name="l00571"></a><span class="lineno">  571</span>  <span class="keywordflow">return</span> val;</div>
-<div class="line"><a id="l00572" name="l00572"></a><span class="lineno">  572</span>} <span class="comment">// istream_to_enum()</span></div>
-<div class="line"><a id="l00573" name="l00573"></a><span class="lineno">  573</span> </div>
-<div class="line"><a id="l00574" name="l00574"></a><span class="lineno">  574</span>} <span class="comment">// namespace flow::util</span></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="line"><a id="l00519" name="l00519"></a><span class="lineno">  519</span>  <span class="keywordflow">return</span> target_str;</div>
+<div class="line"><a id="l00520" name="l00520"></a><span class="lineno">  520</span>}</div>
+<div class="line"><a id="l00521" name="l00521"></a><span class="lineno">  521</span> </div>
+<div class="line"><a id="l00522" name="l00522"></a><span class="lineno">  522</span><span class="keyword">template</span>&lt;<span class="keyword">typename</span> Enum&gt;</div>
+<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"><a class="line" href="namespaceflow_1_1util.html#a18a29d6a6e65c3b96c52b5cad5971266">  523</a></span>Enum <a class="code hl_function" href="namespaceflow_1_1util.html#a18a29d6a6e65c3b96c52b5cad5971266">istream_to_enum</a>(std::istream* is_ptr, Enum enum_default, Enum enum_sentinel,</div>
+<div class="line"><a id="l00524" name="l00524"></a><span class="lineno">  524</span>                     <span class="keywordtype">bool</span> accept_num_encoding, <span class="keywordtype">bool</span> case_sensitive,</div>
+<div class="line"><a id="l00525" name="l00525"></a><span class="lineno">  525</span>                     Enum enum_lowest)</div>
+<div class="line"><a id="l00526" name="l00526"></a><span class="lineno">  526</span>{</div>
+<div class="line"><a id="l00527" name="l00527"></a><span class="lineno">  527</span>  <span class="keyword">using </span>boost::lexical_cast;</div>
+<div class="line"><a id="l00528" name="l00528"></a><span class="lineno">  528</span>  <span class="keyword">using </span>boost::bad_lexical_cast;</div>
+<div class="line"><a id="l00529" name="l00529"></a><span class="lineno">  529</span>  <span class="keyword">using </span>boost::algorithm::equals;</div>
+<div class="line"><a id="l00530" name="l00530"></a><span class="lineno">  530</span>  <span class="keyword">using </span>boost::algorithm::is_iequal;</div>
+<div class="line"><a id="l00531" name="l00531"></a><span class="lineno">  531</span>  <span class="keyword">using </span>std::locale;</div>
+<div class="line"><a id="l00532" name="l00532"></a><span class="lineno">  532</span>  <span class="keyword">using </span>std::string;</div>
+<div class="line"><a id="l00533" name="l00533"></a><span class="lineno">  533</span>  <span class="keyword">using </span>std::isdigit;</div>
+<div class="line"><a id="l00534" name="l00534"></a><span class="lineno">  534</span>  <span class="keyword">using </span>std::isalnum;</div>
+<div class="line"><a id="l00535" name="l00535"></a><span class="lineno">  535</span>  <span class="keyword">using </span>Traits = std::char_traits&lt;char&gt;;</div>
+<div class="line"><a id="l00536" name="l00536"></a><span class="lineno">  536</span>  <span class="keyword">using </span>enum_t = std::underlying_type_t&lt;Enum&gt;;</div>
+<div class="line"><a id="l00537" name="l00537"></a><span class="lineno">  537</span> </div>
+<div class="line"><a id="l00538" name="l00538"></a><span class="lineno">  538</span>  <span class="comment">// Reminder: There are various assumptions about Enum this takes for granted; behavior undefined otherwise.</span></div>
+<div class="line"><a id="l00539" name="l00539"></a><span class="lineno">  539</span> </div>
+<div class="line"><a id="l00540" name="l00540"></a><span class="lineno">  540</span>  assert(enum_t(enum_lowest) &gt;= 0); <span class="comment">// Otherwise we&#39;d have to allow &#39;-&#39; (minus sign), and we&#39;d... just rather not.</span></div>
+<div class="line"><a id="l00541" name="l00541"></a><span class="lineno">  541</span>  <span class="keyword">auto</span>&amp; is = *is_ptr;</div>
+<div class="line"><a id="l00542" name="l00542"></a><span class="lineno">  542</span>  <span class="keyword">const</span> is_iequal i_equal_func(locale::classic());</div>
+<div class="line"><a id="l00543" name="l00543"></a><span class="lineno">  543</span> </div>
+<div class="line"><a id="l00544" name="l00544"></a><span class="lineno">  544</span>  <span class="comment">// Read into `token` until (and not including) the first non-alphanumeric/underscore character or stream end.</span></div>
+<div class="line"><a id="l00545" name="l00545"></a><span class="lineno">  545</span>  <span class="keywordtype">string</span> token;</div>
+<div class="line"><a id="l00546" name="l00546"></a><span class="lineno">  546</span>  <span class="keywordtype">char</span> ch;</div>
+<div class="line"><a id="l00547" name="l00547"></a><span class="lineno">  547</span>  <span class="keywordflow">while</span> (((ch = is.peek()) != Traits::eof()) &amp;&amp; (isalnum(ch) || (ch == <span class="charliteral">&#39;_&#39;</span>)))</div>
+<div class="line"><a id="l00548" name="l00548"></a><span class="lineno">  548</span>  {</div>
+<div class="line"><a id="l00549" name="l00549"></a><span class="lineno">  549</span>    token += ch;</div>
+<div class="line"><a id="l00550" name="l00550"></a><span class="lineno">  550</span>    is.get();</div>
+<div class="line"><a id="l00551" name="l00551"></a><span class="lineno">  551</span>  }</div>
+<div class="line"><a id="l00552" name="l00552"></a><span class="lineno">  552</span> </div>
+<div class="line"><a id="l00553" name="l00553"></a><span class="lineno">  553</span>  Enum val = enum_default;</div>
+<div class="line"><a id="l00554" name="l00554"></a><span class="lineno">  554</span> </div>
+<div class="line"><a id="l00555" name="l00555"></a><span class="lineno">  555</span>  <span class="keywordflow">if</span> (!token.empty())</div>
+<div class="line"><a id="l00556" name="l00556"></a><span class="lineno">  556</span>  {</div>
+<div class="line"><a id="l00557" name="l00557"></a><span class="lineno">  557</span>    <span class="keywordflow">if</span> (accept_num_encoding &amp;&amp; isdigit(token.front())) <span class="comment">// Hence ostream&lt;&lt; shouldn&#39;t serialize a digit-leading value.</span></div>
+<div class="line"><a id="l00558" name="l00558"></a><span class="lineno">  558</span>    {</div>
+<div class="line"><a id="l00559" name="l00559"></a><span class="lineno">  559</span>      enum_t num_enum;</div>
+<div class="line"><a id="l00560" name="l00560"></a><span class="lineno">  560</span>      <span class="keywordflow">try</span></div>
+<div class="line"><a id="l00561" name="l00561"></a><span class="lineno">  561</span>      {</div>
+<div class="line"><a id="l00562" name="l00562"></a><span class="lineno">  562</span>        num_enum = lexical_cast&lt;enum_t&gt;(token);</div>
+<div class="line"><a id="l00563" name="l00563"></a><span class="lineno">  563</span>        <span class="comment">// This assumes a vanilla enum integer value ordering.</span></div>
+<div class="line"><a id="l00564" name="l00564"></a><span class="lineno">  564</span>        <span class="keywordflow">if</span> ((num_enum &gt;= enum_t(enum_sentinel) || (num_enum &lt; enum_t(enum_lowest))))</div>
+<div class="line"><a id="l00565" name="l00565"></a><span class="lineno">  565</span>        {</div>
+<div class="line"><a id="l00566" name="l00566"></a><span class="lineno">  566</span>          num_enum = enum_t(enum_default);</div>
+<div class="line"><a id="l00567" name="l00567"></a><span class="lineno">  567</span>        }</div>
+<div class="line"><a id="l00568" name="l00568"></a><span class="lineno">  568</span>        val = Enum(num_enum);</div>
+<div class="line"><a id="l00569" name="l00569"></a><span class="lineno">  569</span>      }</div>
+<div class="line"><a id="l00570" name="l00570"></a><span class="lineno">  570</span>      <span class="keywordflow">catch</span> (<span class="keyword">const</span> bad_lexical_cast&amp; exc)</div>
+<div class="line"><a id="l00571" name="l00571"></a><span class="lineno">  571</span>      {</div>
+<div class="line"><a id="l00572" name="l00572"></a><span class="lineno">  572</span>        assert(val == enum_default);</div>
+<div class="line"><a id="l00573" name="l00573"></a><span class="lineno">  573</span>      }</div>
+<div class="line"><a id="l00574" name="l00574"></a><span class="lineno">  574</span>    } <span class="comment">// if (accept_num_encoding &amp;&amp; isdigit())</span></div>
+<div class="line"><a id="l00575" name="l00575"></a><span class="lineno">  575</span>    <span class="keywordflow">else</span> <span class="comment">// if (!(accept_num_encoding &amp;&amp; isdigit()))</span></div>
+<div class="line"><a id="l00576" name="l00576"></a><span class="lineno">  576</span>    {</div>
+<div class="line"><a id="l00577" name="l00577"></a><span class="lineno">  577</span>      enum_t idx;</div>
+<div class="line"><a id="l00578" name="l00578"></a><span class="lineno">  578</span>      <span class="comment">// This assumes a vanilla enum integer value ordering within this [closed range].</span></div>
+<div class="line"><a id="l00579" name="l00579"></a><span class="lineno">  579</span>      <span class="keywordflow">for</span> (idx = enum_t(enum_lowest); idx != enum_t(enum_sentinel); ++idx)</div>
+<div class="line"><a id="l00580" name="l00580"></a><span class="lineno">  580</span>      {</div>
+<div class="line"><a id="l00581" name="l00581"></a><span class="lineno">  581</span>        <span class="keyword">const</span> <span class="keyword">auto</span> candidate = Enum(idx);</div>
+<div class="line"><a id="l00582" name="l00582"></a><span class="lineno">  582</span>        <span class="comment">/* Note -- lexical_cast&lt;string&gt;(Enum) == (operator&lt;&lt;(ostringstream&amp;, Enum)).str() -- the symbolic</span></div>
+<div class="line"><a id="l00583" name="l00583"></a><span class="lineno">  583</span><span class="comment">         * encoding of Enum (as we promised to accept, case-[in]sensitively), not the numeric encoding.  The numeric</span></div>
+<div class="line"><a id="l00584" name="l00584"></a><span class="lineno">  584</span><span class="comment">         * encoding is checked-for in the `if (accept_num_encoding...)` branch above using a non-looping technique. */</span></div>
+<div class="line"><a id="l00585" name="l00585"></a><span class="lineno">  585</span>        <span class="keywordflow">if</span> (case_sensitive ? equals(token, lexical_cast&lt;string&gt;(candidate))</div>
+<div class="line"><a id="l00586" name="l00586"></a><span class="lineno">  586</span>                           : equals(token, lexical_cast&lt;string&gt;(candidate), i_equal_func))</div>
+<div class="line"><a id="l00587" name="l00587"></a><span class="lineno">  587</span>        {</div>
+<div class="line"><a id="l00588" name="l00588"></a><span class="lineno">  588</span>          val = candidate;</div>
+<div class="line"><a id="l00589" name="l00589"></a><span class="lineno">  589</span>          <span class="keywordflow">break</span>;</div>
+<div class="line"><a id="l00590" name="l00590"></a><span class="lineno">  590</span>        }</div>
+<div class="line"><a id="l00591" name="l00591"></a><span class="lineno">  591</span>      }</div>
+<div class="line"><a id="l00592" name="l00592"></a><span class="lineno">  592</span>      assert((idx != enum_t(enum_sentinel)) || (val == enum_default));</div>
+<div class="line"><a id="l00593" name="l00593"></a><span class="lineno">  593</span>    } <span class="comment">// else if (!(accept_num_encoding &amp;&amp; isdigit()))</span></div>
+<div class="line"><a id="l00594" name="l00594"></a><span class="lineno">  594</span>  } <span class="comment">// if (!token.empty())</span></div>
+<div class="line"><a id="l00595" name="l00595"></a><span class="lineno">  595</span> </div>
+<div class="line"><a id="l00596" name="l00596"></a><span class="lineno">  596</span>  <span class="keywordflow">return</span> val;</div>
+<div class="line"><a id="l00597" name="l00597"></a><span class="lineno">  597</span>} <span class="comment">// istream_to_enum()</span></div>
+<div class="line"><a id="l00598" name="l00598"></a><span class="lineno">  598</span> </div>
+<div class="line"><a id="l00599" name="l00599"></a><span class="lineno">  599</span>} <span class="comment">// namespace flow::util</span></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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 <div class="ttc" id="aclassflow_1_1util_1_1Null__interface_html_a5916282577627e424a09884347eddbba"><div class="ttname"><a href="classflow_1_1util_1_1Null__interface.html#a5916282577627e424a09884347eddbba">flow::util::Null_interface::~Null_interface</a></div><div class="ttdeci">virtual ~Null_interface()=0</div><div class="ttdoc">Boring virtual destructor.</div></div>
-<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html">flow::util::Scoped_setter</a></div><div class="ttdoc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to ...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00119">util.hpp:120</a></div></div>
-<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html_a12ca74f225f756458f872e6f0da60695"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html#a12ca74f225f756458f872e6f0da60695">flow::util::Scoped_setter::~Scoped_setter</a></div><div class="ttdeci">~Scoped_setter()</div><div class="ttdoc">Restores *target (from main ctor) to its value at entry to said ctor; or does nothing if *this has be...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00200">util.hpp:200</a></div></div>
-<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html_a8547c08154499e1694202da49afb7202"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html#a8547c08154499e1694202da49afb7202">flow::util::Scoped_setter::m_saved_value</a></div><div class="ttdeci">Value m_saved_value</div><div class="ttdoc">If and only if m_target_or_null is non-null, this saves *m_target_or_null. Otherwise meaningless.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00173">util.hpp:173</a></div></div>
+<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html">flow::util::Scoped_setter</a></div><div class="ttdoc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to ...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00144">util.hpp:145</a></div></div>
+<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html_a12ca74f225f756458f872e6f0da60695"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html#a12ca74f225f756458f872e6f0da60695">flow::util::Scoped_setter::~Scoped_setter</a></div><div class="ttdeci">~Scoped_setter()</div><div class="ttdoc">Restores *target (from main ctor) to its value at entry to said ctor; or does nothing if *this has be...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00225">util.hpp:225</a></div></div>
+<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html_a8547c08154499e1694202da49afb7202"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html#a8547c08154499e1694202da49afb7202">flow::util::Scoped_setter::m_saved_value</a></div><div class="ttdeci">Value m_saved_value</div><div class="ttdoc">If and only if m_target_or_null is non-null, this saves *m_target_or_null. Otherwise meaningless.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00198">util.hpp:198</a></div></div>
 <div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html_a9f61f7f731e78c9760b925b577cdd503"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html#a9f61f7f731e78c9760b925b577cdd503">flow::util::Scoped_setter::Scoped_setter</a></div><div class="ttdeci">Scoped_setter(const Scoped_setter &amp;)=delete</div><div class="ttdoc">Prohibit copying: for each explicit ctor invocation, there shall be exactly 1 non-no-op dtor invocati...</div></div>
 <div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html_aa4464d1c39413033a0e457a494363bce"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html#aa4464d1c39413033a0e457a494363bce">flow::util::Scoped_setter::operator=</a></div><div class="ttdeci">Scoped_setter &amp; operator=(const Scoped_setter &amp;)=delete</div><div class="ttdoc">Prohibit copying (see deleted copy ctor).</div></div>
-<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html_ab36f9981921da6540fc5c308e4c19a9c"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html#ab36f9981921da6540fc5c308e4c19a9c">flow::util::Scoped_setter::m_target_or_null</a></div><div class="ttdeci">Value * m_target_or_null</div><div class="ttdoc">Target object location; see ctors; if null then this is a moved-from Scoped_setter that intentionally...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00170">util.hpp:170</a></div></div>
-<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html_acd854f798e440e7f4a4c18c7b83443fc"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html#acd854f798e440e7f4a4c18c7b83443fc">flow::util::Scoped_setter::Scoped_setter</a></div><div class="ttdeci">Scoped_setter(Value *target, Value &amp;&amp;val_src_moved)</div><div class="ttdoc">Post-condition: *target contains was val_src_moved contained at ctor entry; and the destructor invoca...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00181">util.hpp:181</a></div></div>
+<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html_ab36f9981921da6540fc5c308e4c19a9c"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html#ab36f9981921da6540fc5c308e4c19a9c">flow::util::Scoped_setter::m_target_or_null</a></div><div class="ttdeci">Value * m_target_or_null</div><div class="ttdoc">Target object location; see ctors; if null then this is a moved-from Scoped_setter that intentionally...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00195">util.hpp:195</a></div></div>
+<div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html_acd854f798e440e7f4a4c18c7b83443fc"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html#acd854f798e440e7f4a4c18c7b83443fc">flow::util::Scoped_setter::Scoped_setter</a></div><div class="ttdeci">Scoped_setter(Value *target, Value &amp;&amp;val_src_moved)</div><div class="ttdoc">Post-condition: *target contains was val_src_moved contained at ctor entry; and the destructor invoca...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00206">util.hpp:206</a></div></div>
 <div class="ttc" id="aclassflow_1_1util_1_1Scoped__setter_html_ae0dcbc446c250933940ead3cb589c1eb"><div class="ttname"><a href="classflow_1_1util_1_1Scoped__setter.html#ae0dcbc446c250933940ead3cb589c1eb">flow::util::Scoped_setter::operator=</a></div><div class="ttdeci">Scoped_setter &amp; operator=(Scoped_setter &amp;&amp;)=delete</div><div class="ttdoc">Prohibit modifying existing *this; except that moving-from is enabled via the move ctor.</div></div>
 <div class="ttc" id="aclassflow_1_1util_1_1String__ostream_html"><div class="ttname"><a href="classflow_1_1util_1_1String__ostream.html">flow::util::String_ostream</a></div><div class="ttdoc">Similar to ostringstream but allows fast read-only access directly into the std::string being written...</div><div class="ttdef"><b>Definition:</b> <a href="string__ostream_8hpp_source.html#l00045">string_ostream.hpp:47</a></div></div>
 <div class="ttc" id="aclassflow_1_1util_1_1String__ostream_html_a7e64b069ae0e221952068c13fdc0f080"><div class="ttname"><a href="classflow_1_1util_1_1String__ostream.html#a7e64b069ae0e221952068c13fdc0f080">flow::util::String_ostream::os</a></div><div class="ttdeci">std::ostream &amp; os()</div><div class="ttdoc">Access to stream that will write to owned string.</div><div class="ttdef"><b>Definition:</b> <a href="string__ostream_8cpp_source.html#l00033">string_ostream.cpp:33</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html"><div class="ttname"><a href="namespaceflow_1_1util.html">flow::util</a></div><div class="ttdoc">Flow module containing miscellaneous general-use facilities that don't fit into any other Flow module...</div><div class="ttdef"><b>Definition:</b> <a href="basic__blob_8hpp_source.html#l00028">basic_blob.hpp:29</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a024ddda9acb2b66f2a1b35cdb0c016aa"><div class="ttname"><a href="namespaceflow_1_1util.html#a024ddda9acb2b66f2a1b35cdb0c016aa">flow::util::in_closed_open_range</a></div><div class="ttdeci">bool in_closed_open_range(T const &amp;min_val, T const &amp;val, T const &amp;max_val)</div><div class="ttdoc">Returns true if and only if the given value is within the given range, given as a [low,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00262">util.hpp:262</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a03984e29450abf9cf287c501d6c8f866"><div class="ttname"><a href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">flow::util::key_exists</a></div><div class="ttdeci">bool key_exists(const Container &amp;container, const typename Container::key_type &amp;key)</div><div class="ttdoc">Returns true if and only if the given key is present at least once in the given associative container...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00276">util.hpp:276</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a09a032f8e1e77a3afc0b7df115a773e1"><div class="ttname"><a href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">flow::util::setup_auto_cleanup</a></div><div class="ttdeci">Auto_cleanup setup_auto_cleanup(const Cleanup_func &amp;func)</div><div class="ttdoc">Provides a way to execute arbitrary (cleanup) code at the exit of the current block.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00282">util.hpp:282</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a0a873d1abeac7a29822e940adf4f06c9"><div class="ttname"><a href="namespaceflow_1_1util.html#a0a873d1abeac7a29822e940adf4f06c9">flow::util::sequence_to_inverted_lookup_map</a></div><div class="ttdeci">void sequence_to_inverted_lookup_map(Sequence const &amp;src_seq, Map *target_map, const Function&lt; typename Map::mapped_type(size_t)&gt; &amp;idx_to_map_val_func)</div><div class="ttdoc">Similar to the 2-arg overload of sequence_to_inverted_lookup_map() but with the ability to store a va...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00366">util.hpp:367</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a0f681afaf67a0f917cf43a7ae893a015"><div class="ttname"><a href="namespaceflow_1_1util.html#a0f681afaf67a0f917cf43a7ae893a015">flow::util::to_mbit_per_sec</a></div><div class="ttdeci">double to_mbit_per_sec(N_items items_per_time, size_t bits_per_item)</div><div class="ttdoc">Utility that converts a bandwidth in arbitrary units in both numerator and denominator to the same ba...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00212">util.hpp:212</a></div></div>
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-<div class="ttc" id="anamespaceflow_1_1util_html_a18a29d6a6e65c3b96c52b5cad5971266"><div class="ttname"><a href="namespaceflow_1_1util.html#a18a29d6a6e65c3b96c52b5cad5971266">flow::util::istream_to_enum</a></div><div class="ttdeci">Enum istream_to_enum(std::istream *is_ptr, Enum enum_default, Enum enum_sentinel, bool accept_num_encoding, bool case_sensitive, Enum enum_lowest)</div><div class="ttdoc">Deserializes an enum class value from a standard input stream.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00498">util.hpp:498</a></div></div>
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diff --git a/doc/flow_doc/generated/html_full/util__fwd_8hpp_source.html b/doc/flow_doc/generated/html_full/util__fwd_8hpp_source.html
index d2ba26886..cd867d48e 100644
--- a/doc/flow_doc/generated/html_full/util__fwd_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/util__fwd_8hpp_source.html
@@ -1156,42 +1156,42 @@
 <div class="line"><a id="l01084" name="l01084"></a><span class="lineno"> 1084</span><span class="preprocessor">  while (false)</span></div>
 <div class="line"><a id="l01085" name="l01085"></a><span class="lineno"> 1085</span> </div>
 <div class="line"><a id="l01086" name="l01086"></a><span class="lineno"> 1086</span>} <span class="comment">// namespace flow::util</span></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1util_1_1Linked__hash__map_html"><div class="ttname"><a href="classflow_1_1util_1_1Linked__hash__map.html">flow::util::Linked_hash_map</a></div><div class="ttdoc">An object of this class is a map that combines the lookup speed of a boost::unordered_map&lt;&gt; and order...</div><div class="ttdef"><b>Definition:</b> <a href="linked__hash__map_8hpp_source.html#l00075">linked_hash_map.hpp:76</a></div></div>
 <div class="ttc" id="aclassflow_1_1util_1_1Linked__hash__set_html"><div class="ttname"><a href="classflow_1_1util_1_1Linked__hash__set.html">flow::util::Linked_hash_set</a></div><div class="ttdoc">An object of this class is a set that combines the lookup speed of an unordered_set&lt;&gt; and ordering an...</div><div class="ttdef"><b>Definition:</b> <a href="linked__hash__set_8hpp_source.html#l00047">linked_hash_set.hpp:48</a></div></div>
 <div class="ttc" id="adetail_2util__fwd_8hpp_html"><div class="ttname"><a href="detail_2util__fwd_8hpp.html">util_fwd.hpp</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html"><div class="ttname"><a href="namespaceflow_1_1util.html">flow::util</a></div><div class="ttdoc">Flow module containing miscellaneous general-use facilities that don't fit into any other Flow module...</div><div class="ttdef"><b>Definition:</b> <a href="basic__blob_8hpp_source.html#l00028">basic_blob.hpp:29</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a015b84cfa3076b8e75d16ec44a5514a3"><div class="ttname"><a href="namespaceflow_1_1util.html#a015b84cfa3076b8e75d16ec44a5514a3">flow::util::Lock_guard_recursive</a></div><div class="ttdeci">boost::unique_lock&lt; Mutex_recursive &gt; Lock_guard_recursive</div><div class="ttdoc">(Deprecated given C++1x) Short-hand for advanced-capability RAII lock guard for Mutex_recursive mutex...</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00291">util_fwd.hpp:291</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a024ddda9acb2b66f2a1b35cdb0c016aa"><div class="ttname"><a href="namespaceflow_1_1util.html#a024ddda9acb2b66f2a1b35cdb0c016aa">flow::util::in_closed_open_range</a></div><div class="ttdeci">bool in_closed_open_range(T const &amp;min_val, T const &amp;val, T const &amp;max_val)</div><div class="ttdoc">Returns true if and only if the given value is within the given range, given as a [low,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00262">util.hpp:262</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a03984e29450abf9cf287c501d6c8f866"><div class="ttname"><a href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">flow::util::key_exists</a></div><div class="ttdeci">bool key_exists(const Container &amp;container, const typename Container::key_type &amp;key)</div><div class="ttdoc">Returns true if and only if the given key is present at least once in the given associative container...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00276">util.hpp:276</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a024ddda9acb2b66f2a1b35cdb0c016aa"><div class="ttname"><a href="namespaceflow_1_1util.html#a024ddda9acb2b66f2a1b35cdb0c016aa">flow::util::in_closed_open_range</a></div><div class="ttdeci">bool in_closed_open_range(T const &amp;min_val, T const &amp;val, T const &amp;max_val)</div><div class="ttdoc">Returns true if and only if the given value is within the given range, given as a [low,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00287">util.hpp:287</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a03984e29450abf9cf287c501d6c8f866"><div class="ttname"><a href="namespaceflow_1_1util.html#a03984e29450abf9cf287c501d6c8f866">flow::util::key_exists</a></div><div class="ttdeci">bool key_exists(const Container &amp;container, const typename Container::key_type &amp;key)</div><div class="ttdoc">Returns true if and only if the given key is present at least once in the given associative container...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00301">util.hpp:301</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a0955a29930075ac1fe393896c089b911"><div class="ttname"><a href="namespaceflow_1_1util.html#a0955a29930075ac1fe393896c089b911">flow::util::beautify_chrono_ostream</a></div><div class="ttdeci">void beautify_chrono_ostream(std::ostream *os_ptr)</div><div class="ttdoc">Sets certain chrono-related formatting on the given ostream that results in a consistent,...</div><div class="ttdef"><b>Definition:</b> <a href="util_8cpp_source.html#l00173">util.cpp:173</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a09a032f8e1e77a3afc0b7df115a773e1"><div class="ttname"><a href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">flow::util::setup_auto_cleanup</a></div><div class="ttdeci">Auto_cleanup setup_auto_cleanup(const Cleanup_func &amp;func)</div><div class="ttdoc">Provides a way to execute arbitrary (cleanup) code at the exit of the current block.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00282">util.hpp:282</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a09a032f8e1e77a3afc0b7df115a773e1"><div class="ttname"><a href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">flow::util::setup_auto_cleanup</a></div><div class="ttdeci">Auto_cleanup setup_auto_cleanup(const Cleanup_func &amp;func)</div><div class="ttdoc">Provides a way to execute arbitrary (cleanup) code at the exit of the current block.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00307">util.hpp:307</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a0a4e7b2d3107bd630e0dc0c0b8f2e4de"><div class="ttname"><a href="namespaceflow_1_1util.html#a0a4e7b2d3107bd630e0dc0c0b8f2e4de">flow::util::Thread_id</a></div><div class="ttdeci">Thread::id Thread_id</div><div class="ttdoc">Short-hand for an OS-provided ID of a util::Thread.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00090">util_fwd.hpp:90</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a0a873d1abeac7a29822e940adf4f06c9"><div class="ttname"><a href="namespaceflow_1_1util.html#a0a873d1abeac7a29822e940adf4f06c9">flow::util::sequence_to_inverted_lookup_map</a></div><div class="ttdeci">void sequence_to_inverted_lookup_map(Sequence const &amp;src_seq, Map *target_map, const Function&lt; typename Map::mapped_type(size_t)&gt; &amp;idx_to_map_val_func)</div><div class="ttdoc">Similar to the 2-arg overload of sequence_to_inverted_lookup_map() but with the ability to store a va...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00366">util.hpp:367</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a0f681afaf67a0f917cf43a7ae893a015"><div class="ttname"><a href="namespaceflow_1_1util.html#a0f681afaf67a0f917cf43a7ae893a015">flow::util::to_mbit_per_sec</a></div><div class="ttdeci">double to_mbit_per_sec(N_items items_per_time, size_t bits_per_item)</div><div class="ttdoc">Utility that converts a bandwidth in arbitrary units in both numerator and denominator to the same ba...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00212">util.hpp:212</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a16357344c21456b86b7de3085e2661a2"><div class="ttname"><a href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">flow::util::buffers_dump_string</a></div><div class="ttdeci">std::string buffers_dump_string(const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Identical to buffers_to_ostream() but returns an std::string instead of writing to a given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00481">util.hpp:481</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a18a29d6a6e65c3b96c52b5cad5971266"><div class="ttname"><a href="namespaceflow_1_1util.html#a18a29d6a6e65c3b96c52b5cad5971266">flow::util::istream_to_enum</a></div><div class="ttdeci">Enum istream_to_enum(std::istream *is_ptr, Enum enum_default, Enum enum_sentinel, bool accept_num_encoding, bool case_sensitive, Enum enum_lowest)</div><div class="ttdoc">Deserializes an enum class value from a standard input stream.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00498">util.hpp:498</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a0a873d1abeac7a29822e940adf4f06c9"><div class="ttname"><a href="namespaceflow_1_1util.html#a0a873d1abeac7a29822e940adf4f06c9">flow::util::sequence_to_inverted_lookup_map</a></div><div class="ttdeci">void sequence_to_inverted_lookup_map(Sequence const &amp;src_seq, Map *target_map, const Function&lt; typename Map::mapped_type(size_t)&gt; &amp;idx_to_map_val_func)</div><div class="ttdoc">Similar to the 2-arg overload of sequence_to_inverted_lookup_map() but with the ability to store a va...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00391">util.hpp:392</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a0f681afaf67a0f917cf43a7ae893a015"><div class="ttname"><a href="namespaceflow_1_1util.html#a0f681afaf67a0f917cf43a7ae893a015">flow::util::to_mbit_per_sec</a></div><div class="ttdeci">double to_mbit_per_sec(N_items items_per_time, size_t bits_per_item)</div><div class="ttdoc">Utility that converts a bandwidth in arbitrary units in both numerator and denominator to the same ba...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00237">util.hpp:237</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a16357344c21456b86b7de3085e2661a2"><div class="ttname"><a href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">flow::util::buffers_dump_string</a></div><div class="ttdeci">std::string buffers_dump_string(const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Identical to buffers_to_ostream() but returns an std::string instead of writing to a given ostream.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00506">util.hpp:506</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a18a29d6a6e65c3b96c52b5cad5971266"><div class="ttname"><a href="namespaceflow_1_1util.html#a18a29d6a6e65c3b96c52b5cad5971266">flow::util::istream_to_enum</a></div><div class="ttdeci">Enum istream_to_enum(std::istream *is_ptr, Enum enum_default, Enum enum_sentinel, bool accept_num_encoding, bool case_sensitive, Enum enum_lowest)</div><div class="ttdoc">Deserializes an enum class value from a standard input stream.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00523">util.hpp:523</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a2ed0f6ab85f5df463bb10913b0764540"><div class="ttname"><a href="namespaceflow_1_1util.html#a2ed0f6ab85f5df463bb10913b0764540">flow::util::Ip_address_v6</a></div><div class="ttdeci">boost::asio::ip::address_v6 Ip_address_v6</div><div class="ttdoc">Short-hand for the IPv6 address type.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00212">util_fwd.hpp:212</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a331b3b73d9d633101d6f0ebc1c829701"><div class="ttname"><a href="namespaceflow_1_1util.html#a331b3b73d9d633101d6f0ebc1c829701">flow::util::Ip_address_v4</a></div><div class="ttdeci">boost::asio::ip::address_v4 Ip_address_v4</div><div class="ttdoc">Short-hand for the IPv4 address type.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00210">util_fwd.hpp:210</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a34ed70fa4de81a4fdb9234bfb5a3a914"><div class="ttname"><a href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">flow::util::subtract_with_floor</a></div><div class="ttdeci">bool subtract_with_floor(Minuend *minuend, const Subtrahend &amp;subtrahend, const Minuend &amp;floor)</div><div class="ttdoc">Performs *minuend -= subtrahend, subject to a floor of floor.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00299">util.hpp:299</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a34ed70fa4de81a4fdb9234bfb5a3a914"><div class="ttname"><a href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">flow::util::subtract_with_floor</a></div><div class="ttdeci">bool subtract_with_floor(Minuend *minuend, const Subtrahend &amp;subtrahend, const Minuend &amp;floor)</div><div class="ttdoc">Performs *minuend -= subtrahend, subject to a floor of floor.</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00324">util.hpp:324</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a418b56a178c07100eef78da5c9d6ee7a"><div class="ttname"><a href="namespaceflow_1_1util.html#a418b56a178c07100eef78da5c9d6ee7a">flow::util::deep_size</a></div><div class="ttdeci">size_t deep_size(const std::string &amp;val)</div><div class="ttdoc">Estimate of memory footprint of the given value, including memory allocated on its behalf – but exclu...</div><div class="ttdef"><b>Definition:</b> <a href="util_8cpp_source.html#l00186">util.cpp:186</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a5d2247b715da63e4b960909561b90ae7"><div class="ttname"><a href="namespaceflow_1_1util.html#a5d2247b715da63e4b960909561b90ae7">flow::util::Lock_guard</a></div><div class="ttdeci">boost::unique_lock&lt; Mutex &gt; Lock_guard</div><div class="ttdoc">Short-hand for advanced-capability RAII lock guard for any mutex, ensuring exclusive ownership of tha...</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00265">util_fwd.hpp:265</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a62b5ba6d6a549ac20e2c055e72bef421"><div class="ttname"><a href="namespaceflow_1_1util.html#a62b5ba6d6a549ac20e2c055e72bef421">flow::util::Mutex_shared_non_recursive</a></div><div class="ttdeci">boost::shared_mutex Mutex_shared_non_recursive</div><div class="ttdoc">Short-hand for non-reentrant, shared-or-exclusive mutex.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00243">util_fwd.hpp:243</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a67eecb5096dabfaff3d02c419b304540"><div class="ttname"><a href="namespaceflow_1_1util.html#a67eecb5096dabfaff3d02c419b304540">flow::util::size_unit_convert</a></div><div class="ttdeci">size_t size_unit_convert(From num_froms)</div><div class="ttdoc">Answers the question what's the smallest integer number of Tos sufficient to verbatim store the given...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00321">util.hpp:321</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a685b86585da2fa5186f51854e7ae1561"><div class="ttname"><a href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">flow::util::ostream_op_string</a></div><div class="ttdeci">std::string ostream_op_string(T const &amp;... ostream_args)</div><div class="ttdoc">Equivalent to ostream_op_to_string() but returns a new string by value instead of writing to the call...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00356">util.hpp:356</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a67eecb5096dabfaff3d02c419b304540"><div class="ttname"><a href="namespaceflow_1_1util.html#a67eecb5096dabfaff3d02c419b304540">flow::util::size_unit_convert</a></div><div class="ttdeci">size_t size_unit_convert(From num_froms)</div><div class="ttdoc">Answers the question what's the smallest integer number of Tos sufficient to verbatim store the given...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00346">util.hpp:346</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a685b86585da2fa5186f51854e7ae1561"><div class="ttname"><a href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">flow::util::ostream_op_string</a></div><div class="ttdeci">std::string ostream_op_string(T const &amp;... ostream_args)</div><div class="ttdoc">Equivalent to ostream_op_to_string() but returns a new string by value instead of writing to the call...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00381">util.hpp:381</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a689388b6eb7e760933d99381d65cacca"><div class="ttname"><a href="namespaceflow_1_1util.html#a689388b6eb7e760933d99381d65cacca">flow::util::Lock_guard_shared_non_recursive_sh</a></div><div class="ttdeci">boost::shared_lock&lt; Mutex_shared_non_recursive &gt; Lock_guard_shared_non_recursive_sh</div><div class="ttdoc">(Deprecated given C++1x) Short-hand for shared mode advanced-capability RAII lock guard for Mutex_sha...</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00300">util_fwd.hpp:300</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a6b7316b3ed6d89f54c91e17c2aab101e"><div class="ttname"><a href="namespaceflow_1_1util.html#a6b7316b3ed6d89f54c91e17c2aab101e">flow::util::ceil_div</a></div><div class="ttdeci">Integer ceil_div(Integer dividend, Integer divisor)</div><div class="ttdoc">Returns the result of the given non-negative integer divided by a positive integer,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00233">util.hpp:233</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a6b7316b3ed6d89f54c91e17c2aab101e"><div class="ttname"><a href="namespaceflow_1_1util.html#a6b7316b3ed6d89f54c91e17c2aab101e">flow::util::ceil_div</a></div><div class="ttdeci">Integer ceil_div(Integer dividend, Integer divisor)</div><div class="ttdoc">Returns the result of the given non-negative integer divided by a positive integer,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00258">util.hpp:258</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a71eaa4ab6a2673ed34fa8989c47a7bc0"><div class="ttname"><a href="namespaceflow_1_1util.html#a71eaa4ab6a2673ed34fa8989c47a7bc0">flow::util::swap</a></div><div class="ttdeci">void swap(Basic_blob&lt; Allocator, S_SHARING_ALLOWED &gt; &amp;blob1, Basic_blob&lt; Allocator, S_SHARING_ALLOWED &gt; &amp;blob2, log::Logger *logger_ptr)</div><div class="ttdoc">Equivalent to blob1.swap(blob2).</div><div class="ttdef"><b>Definition:</b> <a href="basic__blob_8hpp_source.html#l01665">basic_blob.hpp:1665</a></div></div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a733448fee07c2a77e343a3f1590ff82e"><div class="ttname"><a href="namespaceflow_1_1util.html#a733448fee07c2a77e343a3f1590ff82e">flow::util::in_open_open_range</a></div><div class="ttdeci">bool in_open_open_range(T const &amp;min_val, T const &amp;val, T const &amp;max_val)</div><div class="ttdoc">Returns true if and only if the given value is within the given range, given as a (low,...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00270">util.hpp:270</a></div></div>
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-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/x__thread__task__loop_8cpp.html b/doc/flow_doc/generated/html_full/x__thread__task__loop_8cpp.html
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--- a/doc/flow_doc/generated/html_full/x__thread__task__loop_8cpp.html
+++ b/doc/flow_doc/generated/html_full/x__thread__task__loop_8cpp.html
@@ -99,7 +99,7 @@
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/x__thread__task__loop_8cpp_source.html b/doc/flow_doc/generated/html_full/x__thread__task__loop_8cpp_source.html
index 5211db5f8..1c307b63b 100644
--- a/doc/flow_doc/generated/html_full/x__thread__task__loop_8cpp_source.html
+++ b/doc/flow_doc/generated/html_full/x__thread__task__loop_8cpp_source.html
@@ -502,7 +502,7 @@
 <div class="line"><a id="l00430" name="l00430"></a><span class="lineno">  430</span> </div>
 <div class="line"><a id="l00431" name="l00431"></a><span class="lineno">  431</span>} <span class="comment">// namespace flow::async</span></div>
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-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
 <div class="ttc" id="aclassflow_1_1async_1_1Concurrent__task__loop_html"><div class="ttname"><a href="classflow_1_1async_1_1Concurrent__task__loop.html">flow::async::Concurrent_task_loop</a></div><div class="ttdoc">The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...</div><div class="ttdef"><b>Definition:</b> <a href="concurrent__task__loop_8hpp_source.html#l00322">concurrent_task_loop.hpp:324</a></div></div>
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 <div class="ttc" id="aclassflow_1_1async_1_1Cross__thread__task__loop_html_a1008ae4c48d32ebf835d7a7ba203e5a9"><div class="ttname"><a href="classflow_1_1async_1_1Cross__thread__task__loop.html#a1008ae4c48d32ebf835d7a7ba203e5a9">flow::async::Cross_thread_task_loop::schedule_from_now</a></div><div class="ttdeci">util::Scheduled_task_handle schedule_from_now(const Fine_duration &amp;from_now, Scheduled_task &amp;&amp;task) override</div><div class="ttdoc">Implements superclass API.</div><div class="ttdef"><b>Definition:</b> <a href="x__thread__task__loop_8cpp_source.html#l00319">x_thread_task_loop.cpp:319</a></div></div>
@@ -545,23 +545,23 @@
 <div class="ttc" id="anamespaceflow_1_1async_html_a968806f54b14c697fd76b3339a2bdbbf"><div class="ttname"><a href="namespaceflow_1_1async.html#a968806f54b14c697fd76b3339a2bdbbf">flow::async::Task_engine_ptr</a></div><div class="ttdeci">boost::shared_ptr&lt; util::Task_engine &gt; Task_engine_ptr</div><div class="ttdoc">Short-hand for reference-counting pointer to a mutable util::Task_engine (a/k/a boost::asio::io_servi...</div><div class="ttdef"><b>Definition:</b> <a href="async__fwd_8hpp_source.html#l00198">async_fwd.hpp:198</a></div></div>
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-<div class="ttc" id="anamespaceflow_1_1util_html_a685b86585da2fa5186f51854e7ae1561"><div class="ttname"><a href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">flow::util::ostream_op_string</a></div><div class="ttdeci">std::string ostream_op_string(T const &amp;... ostream_args)</div><div class="ttdoc">Equivalent to ostream_op_to_string() but returns a new string by value instead of writing to the call...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00356">util.hpp:356</a></div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a685b86585da2fa5186f51854e7ae1561"><div class="ttname"><a href="namespaceflow_1_1util.html#a685b86585da2fa5186f51854e7ae1561">flow::util::ostream_op_string</a></div><div class="ttdeci">std::string ostream_op_string(T const &amp;... ostream_args)</div><div class="ttdoc">Equivalent to ostream_op_to_string() but returns a new string by value instead of writing to the call...</div><div class="ttdef"><b>Definition:</b> <a href="util_2util_8hpp_source.html#l00381">util.hpp:381</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_a74d4a66fb00055be4e1bd6ee98e04667"><div class="ttname"><a href="namespaceflow_1_1util.html#a74d4a66fb00055be4e1bd6ee98e04667">flow::util::schedule_task_from_now</a></div><div class="ttdeci">Scheduled_task_handle schedule_task_from_now(log::Logger *logger_ptr, const Fine_duration &amp;from_now, bool single_threaded, Task_engine *task_engine, Scheduled_task_handler &amp;&amp;task_body_moved)</div><div class="ttdoc">Schedule the given function to execute in a certain amount of time: A handy wrapper around Timer (asi...</div><div class="ttdef"><b>Definition:</b> <a href="sched__task_8hpp_source.html#l00034">sched_task.hpp:34</a></div></div>
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 <div class="ttc" id="anamespaceflow_1_1util_html_aa59354ab408e978c8a7bda1a4706924e"><div class="ttname"><a href="namespaceflow_1_1util.html#aa59354ab408e978c8a7bda1a4706924e">flow::util::Strand</a></div><div class="ttdeci">Task_engine::strand Strand</div><div class="ttdoc">Short-hand for boost.asio strand, an ancillary class that works with Task_engine for advanced task sc...</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00138">util_fwd.hpp:138</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_adf23368210219716b6fd22d15b765cb6"><div class="ttname"><a href="namespaceflow_1_1util.html#adf23368210219716b6fd22d15b765cb6">flow::util::Task_engine</a></div><div class="ttdeci">boost::asio::io_service Task_engine</div><div class="ttdoc">Short-hand for boost.asio event service, the central class of boost.asio.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00135">util_fwd.hpp:135</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_ae4dc52186797094b3040379ff19124c9"><div class="ttname"><a href="namespaceflow_1_1util.html#ae4dc52186797094b3040379ff19124c9">flow::util::String_view</a></div><div class="ttdeci">Basic_string_view&lt; char &gt; String_view</div><div class="ttdoc">Commonly used char-based Basic_string_view. See its doc header.</div><div class="ttdef"><b>Definition:</b> <a href="string__view_8hpp_source.html#l00191">string_view.hpp:191</a></div></div>
 <div class="ttc" id="anamespaceflow_1_1util_html_af030c3119f060a9630afca31098a78a5"><div class="ttname"><a href="namespaceflow_1_1util.html#af030c3119f060a9630afca31098a78a5">flow::util::Thread</a></div><div class="ttdeci">boost::thread Thread</div><div class="ttdoc">Short-hand for standard thread class.</div><div class="ttdef"><b>Definition:</b> <a href="util__fwd_8hpp_source.html#l00078">util_fwd.hpp:78</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00632">common.hpp:633</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00637">common.hpp:638</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
 <div class="ttc" id="asched__task_8hpp_html"><div class="ttname"><a href="sched__task_8hpp.html">sched_task.hpp</a></div></div>
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 <div class="ttc" id="ax__thread__task__loop_8hpp_html"><div class="ttname"><a href="x__thread__task__loop_8hpp.html">x_thread_task_loop.hpp</a></div></div>
 </div><!-- fragment --></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_full/x__thread__task__loop_8hpp.html b/doc/flow_doc/generated/html_full/x__thread__task__loop_8hpp.html
index 4bde8d49f..7c133cb89 100644
--- a/doc/flow_doc/generated/html_full/x__thread__task__loop_8hpp.html
+++ b/doc/flow_doc/generated/html_full/x__thread__task__loop_8hpp.html
@@ -101,7 +101,7 @@
 </div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:15 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:44 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
 </small></address>
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diff --git a/doc/flow_doc/generated/html_full/x__thread__task__loop_8hpp_source.html b/doc/flow_doc/generated/html_full/x__thread__task__loop_8hpp_source.html
index 507914475..0d998534f 100644
--- a/doc/flow_doc/generated/html_full/x__thread__task__loop_8hpp_source.html
+++ b/doc/flow_doc/generated/html_full/x__thread__task__loop_8hpp_source.html
@@ -380,7 +380,7 @@
 <div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span> </div>
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 <div class="ttc" id="aasync__fwd_8hpp_html"><div class="ttname"><a href="async__fwd_8hpp.html">async_fwd.hpp</a></div></div>
-<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00507">common.hpp:507</a></div></div>
+<div class="ttc" id="aclassflow_1_1Function_html"><div class="ttname"><a href="classflow_1_1Function.html">flow::Function</a></div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00512">common.hpp:512</a></div></div>
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 <div class="ttc" id="aclassflow_1_1async_1_1Cross__thread__task__loop_html"><div class="ttname"><a href="classflow_1_1async_1_1Cross__thread__task__loop.html">flow::async::Cross_thread_task_loop</a></div><div class="ttdoc">Concrete Concurrent_task_loop that is able to efficiently schedule Tasks within a given Op to execute...</div><div class="ttdef"><b>Definition:</b> <a href="x__thread__task__loop_8hpp_source.html#l00088">x_thread_task_loop.hpp:92</a></div></div>
@@ -418,12 +418,12 @@
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-<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00411">common.hpp:411</a></div></div>
-<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00408">common.hpp:408</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a48799f1263cdeedec125be51a3db2b79"><div class="ttname"><a href="namespaceflow.html#a48799f1263cdeedec125be51a3db2b79">flow::Fine_duration</a></div><div class="ttdeci">Fine_clock::duration Fine_duration</div><div class="ttdoc">A high-res time duration as computed from two Fine_time_pts.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00416">common.hpp:416</a></div></div>
+<div class="ttc" id="anamespaceflow_html_a9d9cc2eeb10d398cff5591d446b763b8"><div class="ttname"><a href="namespaceflow.html#a9d9cc2eeb10d398cff5591d446b763b8">flow::Fine_time_pt</a></div><div class="ttdeci">Fine_clock::time_point Fine_time_pt</div><div class="ttdoc">A high-res time point as returned by Fine_clock::now() and suitable for precise time math in general.</div><div class="ttdef"><b>Definition:</b> <a href="common_8hpp_source.html#l00413">common.hpp:413</a></div></div>
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 <tr id="row_1_6_10_" class="even"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Linked__hash__set.html" target="_self">Linked_hash_set</a></td><td class="desc">An object of this class is a set that combines the lookup speed of an <code>unordered_set&lt;&gt;</code> and ordering and iterator stability capabilities of an <code>std::list&lt;&gt;</code> </td></tr>
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-<tr id="row_1_6_12_" class="even"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" target="_self">Rnd_gen_uniform_range</a></td><td class="desc">Simple, non-thread-safe uniform-range random number generator </td></tr>
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+<tr id="row_1_6_12_" class="even"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Null__interface.html" target="_self">Null_interface</a></td><td class="desc">An empty interface, consisting of nothing but a default <code>virtual</code> destructor, intended as a boiler-plate-reducing base for any other (presumably <code>virtual</code>-method-having) class that would otherwise require a default <code>virtual</code> destructor </td></tr>
+<tr id="row_1_6_13_"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" target="_self">Rnd_gen_uniform_range</a></td><td class="desc">Simple, non-thread-safe uniform-range random number generator </td></tr>
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+<tr id="row_1_6_16_" class="even"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Scoped__setter.html" target="_self">Scoped_setter</a></td><td class="desc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to a specified value, memorizing the previous contents; and at destruction restores the value </td></tr>
+<tr id="row_1_6_17_"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">Shared_ptr_alias_holder</a></td><td class="desc">Convenience class template that endows the given subclass <code>T</code> with nested aliases <code>Ptr</code> and <code>Const_ptr</code> aliased to <code>shared_ptr&lt;T&gt;</code> and <code>shared_ptr&lt;const T&gt;</code> respectively </td></tr>
+<tr id="row_1_6_18_" class="even"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1String__ostream.html" target="_self">String_ostream</a></td><td class="desc">Similar to <code>ostringstream</code> but allows fast read-only access directly into the <code>std::string</code> being written; and some limited write access to that string </td></tr>
+<tr id="row_1_6_19_"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Unique__id__holder.html" target="_self">Unique_id_holder</a></td><td class="desc">Each object of this class stores (at construction) and returns (on demand) a numeric ID unique from all other objects of the same class ever constructed, across all time from program start to end </td></tr>
+<tr id="row_1_7_" class="even"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1Function_3_01Result_07Args_8_8_8_08_4.html" target="_self">Function&lt; Result(Args...)&gt;</a></td><td class="desc">Intended as the polymorphic function wrapper of choice for Flow, internally and externally; to be used instead of <code>std::function</code> or <code>boost::function</code> </td></tr>
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <div class="line">    <a class="code hl_class" href="classflow_1_1log_1_1Log__context.html">Log_context</a>(..., Cool_log_component::S_WIDGETRY) <span class="comment">// Ditto for your own code.  Use your own enum.</span></div>
 <div class="ttc" id="aclassflow_1_1log_1_1Log__context_html"><div class="ttname"><a href="classflow_1_1log_1_1Log__context.html">flow::log::Log_context</a></div><div class="ttdoc">Convenience class that simply stores a Logger and/or Component passed into a constructor; and returns...</div><div class="ttdef"><b>Definition:</b> log.hpp:1619</div></div>
 <div class="ttc" id="aclassflow_1_1net__flow_1_1Node_html"><div class="ttname"><a href="classflow_1_1net__flow_1_1Node.html">flow::net_flow::Node</a></div><div class="ttdoc">An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...</div><div class="ttdef"><b>Definition:</b> node.hpp:937</div></div>
-<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> common.hpp:633</div></div>
+<div class="ttc" id="anamespaceflow_html_a3938730ab4b89daf13d027a5f620e7ce"><div class="ttname"><a href="namespaceflow.html#a3938730ab4b89daf13d027a5f620e7ce">flow::Flow_log_component</a></div><div class="ttdeci">Flow_log_component</div><div class="ttdoc">The flow::log::Component payload enumeration comprising various log components used by Flow's own int...</div><div class="ttdef"><b>Definition:</b> common.hpp:638</div></div>
 </div><!-- fragment --><p >Now, <code>this-&gt;get_log_component().<a class="el" href="classflow_1_1log_1_1Component.html#a3ff8ff4d75add447b3e10ded5430833d" title="Returns typeid(Payload), where Payload was the template param used when calling the originating one-a...">payload_type()</a></code> will equal that of <code>Flow_log_component</code> and <code>Cool_log_component</code>, respectively, within those 2 classes. In particular, a custom <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> implementation can use <code><a class="el" href="classflow_1_1log_1_1Component.html#a3ff8ff4d75add447b3e10ded5430833d" title="Returns typeid(Payload), where Payload was the template param used when calling the originating one-a...">payload_type()</a></code> &ndash; and in particular the derived <code><a class="el" href="classflow_1_1log_1_1Component.html#ab071f597ddeee9ad0fdb9e40bff8d988" title="Convenience accessor that returns std::type_index(payload_type()), which can be used most excellently...">payload_type_index()</a></code> &ndash; to interpret the <code><a class="el" href="classflow_1_1log_1_1Component.html" title="A light-weight class, each object storing a component payload encoding an enum value from enum type o...">Component</a></code>s of values from the 2 entirely disparate <code>enum</code>s in different ways. More in particular, the out-of-the-box <code><a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a></code>s use <code><a class="el" href="classflow_1_1log_1_1Config.html" title="Class used to configure the filtering and logging behavior of Loggers; its use in your custom Loggers...">Config</a></code> to do all of that without your having to worry about it (but your own <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> would potentially have to worry about it particularly if not using <a class="el" href="classflow_1_1log_1_1Config.html" title="Class used to configure the filtering and logging behavior of Loggers; its use in your custom Loggers...">log::Config</a>... though we suggest that you should, barring excellent design counter-reasons).</p>
 <dl class="section return"><dt>Returns</dt><dd>See above. </dd></dl>
 
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-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>cfg &rarr; util Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in cfg</th><th class="dirtab">Includes file in util</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="cfg__fwd_8hpp.html">cfg_fwd.hpp</a></td><td class="dirtab"><a class="el" href="util__fwd_8hpp.html">util_fwd.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="cfg__manager_8hpp.html">cfg_manager.hpp</a></td><td class="dirtab"><a class="el" href="shared__ptr__alias__holder_8hpp.html">shared_ptr_alias_holder.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="cfg__manager_8hpp.html">cfg_manager.hpp</a></td><td class="dirtab"><a class="el" href="util_2util_8hpp.html">util.hpp</a></td></tr></table></div><!-- contents -->
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-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>error &rarr; log Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in error</th><th class="dirtab">Includes file in log</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="error_2error_8hpp.html">error.hpp</a></td><td class="dirtab"><a class="el" href="log_8hpp.html">log.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <h3>log &rarr; async Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in log</th><th class="dirtab">Includes file in async</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="async__file__logger_8hpp.html">async_file_logger.hpp</a></td><td class="dirtab"><a class="el" href="single__thread__task__loop_8hpp.html">single_thread_task_loop.hpp</a></td></tr></table></div><!-- contents -->
 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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index f8590bc35..08b5ef969 100644
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 <h3>log &rarr; util Relation</h3><table class="dirtab"><tr class="dirtab"><th class="dirtab">File in log</th><th class="dirtab">Includes file in util</th></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="async__file__logger_8hpp.html">async_file_logger.hpp</a></td><td class="dirtab"><a class="el" href="util__fwd_8hpp.html">util_fwd.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="buffer__logger_8hpp.html">buffer_logger.hpp</a></td><td class="dirtab"><a class="el" href="string__ostream_8hpp.html">string_ostream.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="buffer__logger_8hpp.html">buffer_logger.hpp</a></td><td class="dirtab"><a class="el" href="util__fwd_8hpp.html">util_fwd.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="log_8cpp.html">log.cpp</a></td><td class="dirtab"><a class="el" href="util__fwd_8hpp.html">util_fwd.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="log_8hpp.html">log.hpp</a></td><td class="dirtab"><a class="el" href="uniq__id__holder_8hpp.html">uniq_id_holder.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="log_8hpp.html">log.hpp</a></td><td class="dirtab"><a class="el" href="util_2util_8hpp.html">util.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="ostream__log__msg__writer_8cpp.html">ostream_log_msg_writer.cpp</a></td><td class="dirtab"><a class="el" href="fmt_8hpp.html">fmt.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="ostream__log__msg__writer_8cpp.html">ostream_log_msg_writer.cpp</a></td><td class="dirtab"><a class="el" href="string__view_8hpp.html">string_view.hpp</a></td></tr><tr class="dirtab"><td class="dirtab"><a class="el" href="simple__ostream__logger_8hpp.html">simple_ostream_logger.hpp</a></td><td class="dirtab"><a class="el" href="util__fwd_8hpp.html">util_fwd.hpp</a></td></tr></table></div><!-- contents -->
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 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <!-- start footer part -->
 <hr class="footer"/><address class="footer"><small>
-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_public/functions_func_o.html b/doc/flow_doc/generated/html_public/functions_func_o.html
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+<li>Const_iterator&#160;:&#160;<a class="el" href="classflow_1_1util_1_1Blob__with__log__context.html#af1649a4983f8c6b5d435779c45ce947c">flow::util::Blob_with_log_context&lt; S_SHARING_ALLOWED &gt;</a></li>
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_public/functions_v.html b/doc/flow_doc/generated/html_public/functions_v.html
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 <tr id="row_22_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Linked__hash__set.html" target="_self">flow::util::Linked_hash_set&lt; Peer_socket_ptr &gt;</a></td><td class="desc"></td></tr>
 <tr id="row_23_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_23_" class="arrow" onclick="toggleFolder('23_')">&#9660;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Log__context.html" target="_self">flow::log::Log_context</a></td><td class="desc">Convenience class that simply stores a <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> and/or <a class="el" href="classflow_1_1log_1_1Component.html" title="A light-weight class, each object storing a component payload encoding an enum value from enum type o...">Component</a> passed into a constructor; and returns this <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> and <a class="el" href="classflow_1_1log_1_1Component.html" title="A light-weight class, each object storing a component payload encoding an enum value from enum type o...">Component</a> via <a class="el" href="classflow_1_1log_1_1Log__context.html#af4db395042b065b00398cd59845dcb4d" title="Returns the stored Logger pointer, particularly as many FLOW_LOG_*() macros expect.">get_logger()</a> and <a class="el" href="classflow_1_1log_1_1Log__context.html#a8a5fef42dc2cedf3c0d1a6e83beb2948" title="Returns reference to the stored Component object, particularly as many FLOW_LOG_*() macros expect.">get_log_component()</a> public accessors </td></tr>
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-<tr id="row_23_0_0_"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1cfg_1_1Static__config__manager.html" target="_self">flow::cfg::Static_config_manager&lt; Value_set &gt;</a></td><td class="desc">A <code><a class="el" href="classflow_1_1cfg_1_1Config__manager.html" title="Manages a config setup, intended for a single daemon process, by maintaining 1 or more set(s) of stat...">Config_manager</a></code>-related adapter-style class that manages a simple config setup involving a single (though arbitrarily complex) <code><a class="el" href="classflow_1_1cfg_1_1Option__set.html" title="The core config-parsing facility, which builds parsing/comparison/output capabilities on top of a giv...">Option_set</a>&lt;&gt;</code>-ready raw value <code>struct</code> config store type <code>Value_set</code>, meant to be used only in static fashion </td></tr>
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+<tr id="row_23_0_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span id="arr_23_0_" class="arrow" onclick="toggleFolder('23_0_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1cfg_1_1Config__manager.html" target="_self">flow::cfg::Config_manager&lt; Value_set, Null_value_set &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_23_0_0_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1cfg_1_1Static__config__manager.html" target="_self">flow::cfg::Static_config_manager&lt; Value_set &gt;</a></td><td class="desc">A <code><a class="el" href="classflow_1_1cfg_1_1Config__manager.html" title="Manages a config setup, intended for a single daemon process, by maintaining 1 or more set(s) of stat...">Config_manager</a></code>-related adapter-style class that manages a simple config setup involving a single (though arbitrarily complex) <code><a class="el" href="classflow_1_1cfg_1_1Option__set.html" title="The core config-parsing facility, which builds parsing/comparison/output capabilities on top of a giv...">Option_set</a>&lt;&gt;</code>-ready raw value <code>struct</code> config store type <code>Value_set</code>, meant to be used only in static fashion </td></tr>
+<tr id="row_23_1_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Cross__thread__task__loop.html" target="_self">flow::async::Cross_thread_task_loop</a></td><td class="desc">Concrete <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> that is able to efficiently schedule <code>Task</code>s within a given <code>Op</code> to execute in different threads while still properly avoiding concurrency </td></tr>
+<tr id="row_23_2_" class="even"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Op__list.html" target="_self">flow::async::Op_list</a></td><td class="desc">Simple, immutable <code>vector</code>-like sequence of N opaque <a class="el" href="namespaceflow_1_1async.html#a024042c64b7dc544a7a5587afa4b1949" title="An object of this opaque type represents a collection of 1 or more async::Task, past or future,...">async::Op</a> objects, usually corresponding to N worker threads, with typically used operations such as <code>[index]</code> and random <code>Op</code> selection </td></tr>
+<tr id="row_23_3_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Segregated__thread__task__loop.html" target="_self">flow::async::Segregated_thread_task_loop</a></td><td class="desc">Concrete <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> that uses the legacy pin-<code>Task</code>s-within-1-<code>Op</code>-to-1-thread method of achieving required non-concurrency of <code>Task</code>s </td></tr>
+<tr id="row_23_4_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span id="arr_23_4_" class="arrow" onclick="toggleFolder('23_4_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Single__thread__task__loop.html" target="_self">flow::async::Single_thread_task_loop</a></td><td class="desc">A <code><a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a></code>-related adapter-style class that represents a single-thread task loop; essentially it is pleasant syntactic sugar around a <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> impl that cuts out concepts that become irrelevant with only one thread involved </td></tr>
+<tr id="row_23_4_0_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Timed__single__thread__task__loop.html" target="_self">flow::async::Timed_single_thread_task_loop</a></td><td class="desc">Identical to <a class="el" href="classflow_1_1async_1_1Single__thread__task__loop.html" title="A Concurrent_task_loop-related adapter-style class that represents a single-thread task loop; essenti...">Single_thread_task_loop</a>, but all tasks posted through it are automatically timed, with the result accessible via <a class="el" href="classflow_1_1async_1_1Timed__single__thread__task__loop.html#ae429fb31d17d422306cd9da398e53e5c" title="See Timed_concurrent_task_loop_impl::accumulated_time().">accumulated_time()</a> </td></tr>
 <tr id="row_23_5_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1cfg_1_1Config__manager.html" target="_self">flow::cfg::Config_manager&lt; S_d_value_set &gt;</a></td><td class="desc">Manages a config setup, intended for a single daemon process, by maintaining 1 or more set(s) of static config and dynamic config, each, via that number of <code><a class="el" href="classflow_1_1cfg_1_1Option__set.html" title="The core config-parsing facility, which builds parsing/comparison/output capabilities on top of a giv...">Option_set</a>&lt;&gt;</code>-ready raw value <code>struct</code> types supplied by the user as template arguments </td></tr>
 <tr id="row_23_6_" class="even"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1cfg_1_1Option__set.html" target="_self">flow::cfg::Option_set&lt; Value_set &gt;</a></td><td class="desc">The core config-parsing facility, which builds parsing/comparison/output capabilities on top of a given simple config-holding object, of the type <code>Value_set</code>, a template argument to this class template </td></tr>
 <tr id="row_23_7_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Async__file__logger.html" target="_self">flow::log::Async_file_logger</a></td><td class="desc">An implementation of <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> that logs messages to a given file-system path but never blocks any logging thread for file I/O; suitable for heavy-duty file logging </td></tr>
 <tr id="row_23_8_" class="even"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Event__set.html" target="_self">flow::net_flow::Event_set</a></td><td class="desc">A user-set collection of sockets and desired conditions on those sockets (such as: "socket has data
 to read"), with the ability to wait for those conditions to become true and signal the user when so </td></tr>
 <tr id="row_23_9_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Net__env__simulator.html" target="_self">flow::net_flow::Net_env_simulator</a></td><td class="desc">Objects of this class can be fed to <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> to make it internally simulate network conditions like loss, latency, and data duplication </td></tr>
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-<tr id="row_23_14_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1perf_1_1Checkpointing__timer_1_1Aggregator.html" target="_self">flow::perf::Checkpointing_timer::Aggregator</a></td><td class="desc">This companion/inner class of <a class="el" href="classflow_1_1perf_1_1Checkpointing__timer.html" title="The central class in the perf Flow module, this efficiently times the user&#39;s operation,...">Checkpointing_timer</a> provides aggregation of results from many <code><a class="el" href="classflow_1_1perf_1_1Checkpointing__timer.html" title="The central class in the perf Flow module, this efficiently times the user&#39;s operation,...">Checkpointing_timer</a></code>s each measuring some user operation being repeated many times; particularly when the operation consists of multiple steps (checkpoints) of interest </td></tr>
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+<tr id="row_23_10_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span id="arr_23_10_" class="arrow" onclick="toggleFolder('23_10_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Node.html" target="_self">flow::net_flow::Node</a></td><td class="desc">An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a distinct IP address and UDP port; and (2) it speaks the Flow protocol over a UDP transport layer </td></tr>
+<tr id="row_23_10_0_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1asio_1_1Node.html" target="_self">flow::net_flow::asio::Node</a></td><td class="desc">A subclass of <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">net_flow::Node</a> that adds the ability to easily and directly use <code><a class="el" href="namespaceflow_1_1net__flow.html" title="Flow module containing the API and implementation of the Flow network protocol, a TCP-inspired stream...">net_flow</a></code> sockets in general boost.asio event loops </td></tr>
+<tr id="row_23_11_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span id="arr_23_11_" class="arrow" onclick="toggleFolder('23_11_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" target="_self">flow::net_flow::Peer_socket</a></td><td class="desc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes and reliability support </td></tr>
+<tr id="row_23_11_0_" class="even" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1asio_1_1Peer__socket.html" target="_self">flow::net_flow::asio::Peer_socket</a></td><td class="desc">A <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">net_flow::Peer_socket</a> that adds integration with boost.asio </td></tr>
+<tr id="row_23_12_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span id="arr_23_12_" class="arrow" onclick="toggleFolder('23_12_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Server__socket.html" target="_self">flow::net_flow::Server_socket</a></td><td class="desc">A server socket able to listen on a single Flow port for incoming connections and return peer sockets (<a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> objects) to the local user once such connections are established </td></tr>
+<tr id="row_23_12_0_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1asio_1_1Server__socket.html" target="_self">flow::net_flow::asio::Server_socket</a></td><td class="desc">A <a class="el" href="classflow_1_1net__flow_1_1Server__socket.html" title="A server socket able to listen on a single Flow port for incoming connections and return peer sockets...">net_flow::Server_socket</a> that adds integration with boost.asio </td></tr>
+<tr id="row_23_13_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1perf_1_1Checkpointing__timer.html" target="_self">flow::perf::Checkpointing_timer</a></td><td class="desc">The central class in the <code>perf</code> Flow module, this efficiently times the user's operation, with a specified subset of timing methods; and with the optional ability to time intermediate <em>checkpoints</em> within the overall operation </td></tr>
+<tr id="row_23_14_" class="even"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1perf_1_1Checkpointing__timer_1_1Aggregator.html" target="_self">flow::perf::Checkpointing_timer::Aggregator</a></td><td class="desc">This companion/inner class of <a class="el" href="classflow_1_1perf_1_1Checkpointing__timer.html" title="The central class in the perf Flow module, this efficiently times the user&#39;s operation,...">Checkpointing_timer</a> provides aggregation of results from many <code><a class="el" href="classflow_1_1perf_1_1Checkpointing__timer.html" title="The central class in the perf Flow module, this efficiently times the user&#39;s operation,...">Checkpointing_timer</a></code>s each measuring some user operation being repeated many times; particularly when the operation consists of multiple steps (checkpoints) of interest </td></tr>
+<tr id="row_23_15_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Blob__with__log__context.html" target="_self">flow::util::Blob_with_log_context&lt; S_SHARING_ALLOWED &gt;</a></td><td class="desc"><a class="el" href="classflow_1_1util_1_1Basic__blob.html" title="A hand-optimized and API-tweaked replacement for vector&lt;uint8_t&gt;, i.e., buffer of bytes inside an all...">Basic_blob</a> that works in regular heap (and is itself placed in heap or stack) and memorizes a <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">log::Logger</a>, enabling easier logging albeit with a small perf trade-off </td></tr>
+<tr id="row_24_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1log_1_1Msg__metadata.html" target="_self">flow::log::Msg_metadata</a></td><td class="desc">Simple data store containing all of the information generated at every logging call site by <a class="el" href="namespaceflow_1_1log.html" title="Flow module providing logging functionality.">flow::log</a>, except the message itself, which is passed to <a class="el" href="classflow_1_1log_1_1Logger.html#a934667f16dd6ca0841e521296ab3a6e2" title="Given a message and its severity, logs that message and possibly severity WITHOUT checking whether it...">Logger::do_log()</a> assuming <a class="el" href="classflow_1_1log_1_1Logger.html#ac8a2e7a33fe3fbc0c29ead62ed98c022" title="Given attributes of a hypothetical message that would be logged, return true if that message should b...">Logger::should_log()</a> had returned <code>true</code> </td></tr>
+<tr id="row_25_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Node__options.html" target="_self">flow::net_flow::Node_options</a></td><td class="desc">A set of low-level options affecting a single Flow <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a>, including <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> objects and other objects subsequently generated by that Flow <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> </td></tr>
+<tr id="row_26_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1util_1_1Noncopyable.html" target="_self">flow::util::Noncopyable</a></td><td class="desc">Useful as a no-unique-address private member to make a type noncopyable while keeping that type an aggregate (can be direct-initialized) </td></tr>
+<tr id="row_27_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_27_" class="arrow" onclick="toggleFolder('27_')">&#9660;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Null__interface.html" target="_self">flow::util::Null_interface</a></td><td class="desc">An empty interface, consisting of nothing but a default <code>virtual</code> destructor, intended as a boiler-plate-reducing base for any other (presumably <code>virtual</code>-method-having) class that would otherwise require a default <code>virtual</code> destructor </td></tr>
+<tr id="row_27_0_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span id="arr_27_0_" class="arrow" onclick="toggleFolder('27_0_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" target="_self">flow::async::Concurrent_task_loop</a></td><td class="desc">The core <a class="el" href="namespaceflow_1_1async.html" title="Flow module containing tools enabling multi-threaded event loops operating under the asynchronous-tas...">flow::async</a> interface, providing an optionally multi-threaded thread pool onto which runnable <code>Task</code>s, optionally arranged into concurrency-avoiding <code>Op</code>s, can be boost.asio-posted for subsequent execution </td></tr>
+<tr id="row_27_0_0_" style="display:none;"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span id="arr_27_0_0_" class="arrow" onclick="toggleFolder('27_0_0_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Timed__concurrent__task__loop__impl.html" target="_self">flow::async::Timed_concurrent_task_loop_impl&lt; std::atomic&lt; perf::duration_rep_t &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_27_0_0_0_" style="display:none;"><td class="entry"><span style="width:64px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Timed__concurrent__task__loop.html" target="_self">flow::async::Timed_concurrent_task_loop</a></td><td class="desc">Decorates a general &ndash; potentially multi-threaded &ndash; <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> of any kind but with timing capabilities </td></tr>
+<tr id="row_27_0_1_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Timed__concurrent__task__loop__impl.html" target="_self">flow::async::Timed_concurrent_task_loop_impl&lt; perf::duration_rep_t &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_27_0_2_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Cross__thread__task__loop.html" target="_self">flow::async::Cross_thread_task_loop</a></td><td class="desc">Concrete <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> that is able to efficiently schedule <code>Task</code>s within a given <code>Op</code> to execute in different threads while still properly avoiding concurrency </td></tr>
+<tr id="row_27_0_3_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Segregated__thread__task__loop.html" target="_self">flow::async::Segregated_thread_task_loop</a></td><td class="desc">Concrete <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> that uses the legacy pin-<code>Task</code>s-within-1-<code>Op</code>-to-1-thread method of achieving required non-concurrency of <code>Task</code>s </td></tr>
+<tr id="row_27_0_4_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Timed__concurrent__task__loop__impl.html" target="_self">flow::async::Timed_concurrent_task_loop_impl&lt; Time_accumulator &gt;</a></td><td class="desc">Decorator of a <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> with same or greater lifetime that accumulates time elapsed in any tasks posted or scheduled onto that loop </td></tr>
+<tr id="row_27_1_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1async_1_1Single__thread__task__loop.html" target="_self">flow::async::Single_thread_task_loop</a></td><td class="desc">A <code><a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a></code>-related adapter-style class that represents a single-thread task loop; essentially it is pleasant syntactic sugar around a <a class="el" href="classflow_1_1async_1_1Concurrent__task__loop.html" title="The core flow::async interface, providing an optionally multi-threaded thread pool onto which runnabl...">Concurrent_task_loop</a> impl that cuts out concepts that become irrelevant with only one thread involved </td></tr>
+<tr id="row_27_2_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span id="arr_27_2_" class="arrow" onclick="toggleFolder('27_2_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Logger.html" target="_self">flow::log::Logger</a></td><td class="desc">Interface that the user should implement, passing the implementing <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> into logging classes (Flow's own classes like <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">net_flow::Node</a>; and user's own logging classes) at construction (plus free/<code>static</code> logging functions) </td></tr>
+<tr id="row_27_2_0_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Async__file__logger.html" target="_self">flow::log::Async_file_logger</a></td><td class="desc">An implementation of <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> that logs messages to a given file-system path but never blocks any logging thread for file I/O; suitable for heavy-duty file logging </td></tr>
+<tr id="row_27_2_1_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Buffer__logger.html" target="_self">flow::log::Buffer_logger</a></td><td class="desc">An implementation of <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> that logs messages to an internal <code>std::string</code> buffer and provides read-only access to this buffer (for example, if one wants to write out its contents when exiting program) </td></tr>
+<tr id="row_27_2_2_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Simple__ostream__logger.html" target="_self">flow::log::Simple_ostream_logger</a></td><td class="desc">An implementation of <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> that logs messages to the given <code>ostream</code>s (e.g., <code>cout</code> or an <code>ofstream</code> for a file) </td></tr>
+<tr id="row_27_3_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Node.html" target="_self">flow::net_flow::Node</a></td><td class="desc">An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a distinct IP address and UDP port; and (2) it speaks the Flow protocol over a UDP transport layer </td></tr>
+<tr id="row_27_4_" class="even"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" target="_self">flow::net_flow::Peer_socket</a></td><td class="desc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes and reliability support </td></tr>
+<tr id="row_27_5_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Server__socket.html" target="_self">flow::net_flow::Server_socket</a></td><td class="desc">A server socket able to listen on a single Flow port for incoming connections and return peer sockets (<a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> objects) to the local user once such connections are established </td></tr>
+<tr id="row_28_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1cfg_1_1Config__manager_1_1On__dynamic__change__func__handle.html" target="_self">flow::cfg::Config_manager&lt; S_d_value_set &gt;::On_dynamic_change_func_handle</a></td><td class="desc">Opaque handle for managing a dynamic config change callback </td></tr>
+<tr id="row_29_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_29_" class="arrow" onclick="toggleFolder('29_')">&#9660;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1cfg_1_1Option__set__base.html" target="_self">flow::cfg::Option_set_base</a></td><td class="desc">Un-templated base for <a class="el" href="classflow_1_1cfg_1_1Option__set.html" title="The core config-parsing facility, which builds parsing/comparison/output capabilities on top of a giv...">Option_set</a> </td></tr>
+<tr id="row_29_0_" class="even"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1cfg_1_1Option__set.html" target="_self">flow::cfg::Option_set&lt; Value_set &gt;</a></td><td class="desc">The core config-parsing facility, which builds parsing/comparison/output capabilities on top of a given simple config-holding object, of the type <code>Value_set</code>, a template argument to this class template </td></tr>
+<tr id="row_30_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Ostream__log__msg__writer.html" target="_self">flow::log::Ostream_log_msg_writer</a></td><td class="desc">Utility class, each object of which wraps a given <code>ostream</code> and outputs discrete messages to it adorned with time stamps and other formatting such as separating newlines </td></tr>
+<tr id="row_31_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket__info.html" target="_self">flow::net_flow::Peer_socket_info</a></td><td class="desc">A data store that keeps stats about the a <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> connection </td></tr>
+<tr id="row_32_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket__options.html" target="_self">flow::net_flow::Peer_socket_options</a></td><td class="desc">A set of low-level options affecting a single <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> </td></tr>
+<tr id="row_33_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Peer__socket__receive__stats.html" target="_self">flow::net_flow::Peer_socket_receive_stats</a></td><td class="desc">A data store that keeps stats about the incoming direction of a <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> connection to another Flow-protocol <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> </td></tr>
+<tr id="row_34_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket__send__stats.html" target="_self">flow::net_flow::Peer_socket_send_stats</a></td><td class="desc">A data store that keeps stats about the outgoing direction of a <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> connection to another Flow-protocol <a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> </td></tr>
+<tr id="row_35_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1net__flow_1_1Remote__endpoint.html" target="_self">flow::net_flow::Remote_endpoint</a></td><td class="desc">Represents the remote endpoint of a Flow-protocol connection; identifies the UDP endpoint of the remote <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> and the logical Flow-protocol port within that <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">Node</a> </td></tr>
+<tr id="row_36_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_36_" class="arrow" onclick="toggleFolder('36_')">&#9660;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range__base.html" target="_self">flow::util::Rnd_gen_uniform_range_base</a></td><td class="desc">Base class for <a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" title="Simple, non-thread-safe uniform-range random number generator.">Rnd_gen_uniform_range</a> and <a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range__mt.html" title="Identical to Rnd_gen_uniform_range but safe for concurrent RNG given a single object.">Rnd_gen_uniform_range_mt</a> for various aliases and similar, so template arguments need not be involved </td></tr>
+<tr id="row_36_0_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span id="arr_36_0_" class="arrow" onclick="toggleFolder('36_0_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" target="_self">flow::util::Rnd_gen_uniform_range&lt; size_t &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_36_0_0_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range__mt.html" target="_self">flow::util::Rnd_gen_uniform_range_mt&lt; size_t &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_36_1_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" target="_self">flow::util::Rnd_gen_uniform_range&lt; Peer_socket::security_token_t &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_36_2_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span id="arr_36_2_" class="arrow" onclick="toggleFolder('36_2_')">&#9658;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" target="_self">flow::util::Rnd_gen_uniform_range&lt; range_t &gt;</a></td><td class="desc">Simple, non-thread-safe uniform-range random number generator </td></tr>
+<tr id="row_36_2_0_" style="display:none;"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range__mt.html" target="_self">flow::util::Rnd_gen_uniform_range_mt&lt; range_t &gt;</a></td><td class="desc">Identical to <a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" title="Simple, non-thread-safe uniform-range random number generator.">Rnd_gen_uniform_range</a> but safe for concurrent RNG given a single object </td></tr>
+<tr id="row_37_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1error_1_1Runtime__error.html" target="_self">flow::error::Runtime_error</a></td><td class="desc">An <code>std::runtime_error</code> (which is an <code>std::exception</code>) that stores an <a class="el" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09" title="Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...">Error_code</a> </td></tr>
+<tr id="row_38_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Scoped__setter.html" target="_self">flow::util::Scoped_setter&lt; Value &gt;</a></td><td class="desc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to a specified value, memorizing the previous contents; and at destruction restores the value </td></tr>
+<tr id="row_39_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; Target_ptr, Const_target_ptr &gt;</a></td><td class="desc">Convenience class template that endows the given subclass <code>T</code> with nested aliases <code>Ptr</code> and <code>Const_ptr</code> aliased to <code>shared_ptr&lt;T&gt;</code> and <code>shared_ptr&lt;const T&gt;</code> respectively </td></tr>
+<tr id="row_40_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_40_" class="arrow" onclick="toggleFolder('40_')">&#9660;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Event_set &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_40_0_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Event__set.html" target="_self">flow::net_flow::Event_set</a></td><td class="desc">A user-set collection of sockets and desired conditions on those sockets (such as: "socket has data
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-<tr id="row_43_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Peer_socket::Sent_packet &gt; &gt;</a></td><td class="desc"></td></tr>
-<tr id="row_44_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_44_" class="arrow" onclick="toggleFolder('44_')">&#9660;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Server_socket &gt; &gt;</a></td><td class="desc"></td></tr>
-<tr id="row_44_0_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Server__socket.html" target="_self">flow::net_flow::Server_socket</a></td><td class="desc">A server socket able to listen on a single Flow port for incoming connections and return peer sockets (<a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> objects) to the local user once such connections are established </td></tr>
-<tr id="row_45_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__equals.html" target="_self">flow::net_flow::Event_set::Socket_as_any_equals</a></td><td class="desc">Equality predicate class used in storing various sockets of types wrapped as <code>boost::any</code>s in the <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a592b3ce6602051bd9994216041a3cbdc" title="A set of sockets of one type, used to communicate sets of desired and resulting events in various Eve...">Sockets</a> type </td></tr>
-<tr id="row_46_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__hash.html" target="_self">flow::net_flow::Event_set::Socket_as_any_hash</a></td><td class="desc">Hasher class used in storing various sockets of types wrapped as <code>boost::any</code>s in the <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a592b3ce6602051bd9994216041a3cbdc" title="A set of sockets of one type, used to communicate sets of desired and resulting events in various Eve...">Sockets</a> type </td></tr>
-<tr id="row_47_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1String__ostream.html" target="_self">flow::util::String_ostream</a></td><td class="desc">Similar to <code>ostringstream</code> but allows fast read-only access directly into the <code>std::string</code> being written; and some limited write access to that string </td></tr>
-<tr id="row_48_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1log_1_1Async__file__logger_1_1Throttling__cfg.html" target="_self">flow::log::Async_file_logger::Throttling_cfg</a></td><td class="desc">Controls behavior of the throttling algorithm as described in <a class="el" href="classflow_1_1log_1_1Async__file__logger.html" title="An implementation of Logger that logs messages to a given file-system path but never blocks any loggi...">Async_file_logger</a> doc header Throttling section </td></tr>
-<tr id="row_49_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1perf_1_1Time__pt__set.html" target="_self">flow::perf::Time_pt_set</a></td><td class="desc">Convenience wrapper around an <code>array&lt;Time_pt, N&gt;</code>, which stores a time point for each of the N possible clock types in <a class="el" href="namespaceflow_1_1perf.html#ad61fb186191e4bb824d14601d11a2eb0" title="Clock types supported by flow::perf module facilities, perf::Checkpointing_timer in particular.">perf::Clock_type</a> </td></tr>
-<tr id="row_50_"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_50_" class="arrow" onclick="toggleFolder('50_')">&#9660;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Unique__id__holder.html" target="_self">flow::util::Unique_id_holder</a></td><td class="desc">Each object of this class stores (at construction) and returns (on demand) a numeric ID unique from all other objects of the same class ever constructed, across all time from program start to end </td></tr>
-<tr id="row_50_0_" class="even"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Logger.html" target="_self">flow::log::Logger</a></td><td class="desc">Interface that the user should implement, passing the implementing <a class="el" href="classflow_1_1log_1_1Logger.html" title="Interface that the user should implement, passing the implementing Logger into logging classes (Flow&#39;...">Logger</a> into logging classes (Flow's own classes like <a class="el" href="classflow_1_1net__flow_1_1Node.html" title="An object of this class is a single Flow-protocol networking node, in the sense that: (1) it has a di...">net_flow::Node</a>; and user's own logging classes) at construction (plus free/<code>static</code> logging functions) </td></tr>
-<tr id="row_51_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1log_1_1Verbosity__config.html" target="_self">flow::log::Verbosity_config</a></td><td class="desc">Optional-use structure encapsulating a full set of verbosity config, such that one can parse it from a config source (like an options file) in concise form and apply it to a <a class="el" href="classflow_1_1log_1_1Config.html" title="Class used to configure the filtering and logging behavior of Loggers; its use in your custom Loggers...">log::Config</a> object </td></tr>
+<tr id="row_41_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_41_" class="arrow" onclick="toggleFolder('41_')">&#9660;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Null_value_set &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_41_0_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1cfg_1_1Null__value__set.html" target="_self">flow::cfg::Null_value_set</a></td><td class="desc">Empty <code>struct</code> suitable as a <code>*_value_set</code> template arg for <a class="el" href="classflow_1_1cfg_1_1Config__manager.html" title="Manages a config setup, intended for a single daemon process, by maintaining 1 or more set(s) of stat...">Config_manager</a>, when a slot requires a <code>Value_set</code>, but you have no config to actually parse there </td></tr>
+<tr id="row_42_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_42_" class="arrow" onclick="toggleFolder('42_')">&#9660;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Peer_socket &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_42_0_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" target="_self">flow::net_flow::Peer_socket</a></td><td class="desc">A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes and reliability support </td></tr>
+<tr id="row_43_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Peer_socket::Received_packet &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_44_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Peer_socket::Sent_packet &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_45_" class="even"><td class="entry"><span style="width:0px;display:inline-block;">&#160;</span><span id="arr_45_" class="arrow" onclick="toggleFolder('45_')">&#9660;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">flow::util::Shared_ptr_alias_holder&lt; boost::shared_ptr&lt; Server_socket &gt; &gt;</a></td><td class="desc"></td></tr>
+<tr id="row_45_0_"><td class="entry"><span style="width:32px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Server__socket.html" target="_self">flow::net_flow::Server_socket</a></td><td class="desc">A server socket able to listen on a single Flow port for incoming connections and return peer sockets (<a class="el" href="classflow_1_1net__flow_1_1Peer__socket.html" title="A peer (non-server) socket operating over the Flow network protocol, with optional stream-of-bytes an...">Peer_socket</a> objects) to the local user once such connections are established </td></tr>
+<tr id="row_46_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__equals.html" target="_self">flow::net_flow::Event_set::Socket_as_any_equals</a></td><td class="desc">Equality predicate class used in storing various sockets of types wrapped as <code>boost::any</code>s in the <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a592b3ce6602051bd9994216041a3cbdc" title="A set of sockets of one type, used to communicate sets of desired and resulting events in various Eve...">Sockets</a> type </td></tr>
+<tr id="row_47_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1net__flow_1_1Event__set_1_1Socket__as__any__hash.html" target="_self">flow::net_flow::Event_set::Socket_as_any_hash</a></td><td class="desc">Hasher class used in storing various sockets of types wrapped as <code>boost::any</code>s in the <a class="el" href="classflow_1_1net__flow_1_1Event__set.html#a592b3ce6602051bd9994216041a3cbdc" title="A set of sockets of one type, used to communicate sets of desired and resulting events in various Eve...">Sockets</a> type </td></tr>
+<tr id="row_48_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1String__ostream.html" target="_self">flow::util::String_ostream</a></td><td class="desc">Similar to <code>ostringstream</code> but allows fast read-only access directly into the <code>std::string</code> being written; and some limited write access to that string </td></tr>
+<tr id="row_49_"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1log_1_1Async__file__logger_1_1Throttling__cfg.html" target="_self">flow::log::Async_file_logger::Throttling_cfg</a></td><td class="desc">Controls behavior of the throttling algorithm as described in <a class="el" href="classflow_1_1log_1_1Async__file__logger.html" title="An implementation of Logger that logs messages to a given file-system path but never blocks any loggi...">Async_file_logger</a> doc header Throttling section </td></tr>
+<tr id="row_50_" class="even"><td class="entry"><span style="width:16px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1perf_1_1Time__pt__set.html" target="_self">flow::perf::Time_pt_set</a></td><td class="desc">Convenience wrapper around an <code>array&lt;Time_pt, N&gt;</code>, which stores a time point for each of the N possible clock types in <a class="el" href="namespaceflow_1_1perf.html#ad61fb186191e4bb824d14601d11a2eb0" title="Clock types supported by flow::perf module facilities, perf::Checkpointing_timer in particular.">perf::Clock_type</a> </td></tr>
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 </div><!-- fragment --><p >Then, there are two possibilities. If you pass in non-null <code>err_code</code>, then after return <code>*err_code</code> is success (falsy) or a truthy <code>enum</code>-like value, representing a specific error. If, instead, you pass in null, then a <a class="el" href="classflow_1_1error_1_1Runtime__error.html" title="An std::runtime_error (which is an std::exception) that stores an Error_code.">flow::error::Runtime_error()</a> <code>exc</code> is thrown if and only if <code>*err_code</code> would have been set to truthy value <code>e_c</code> had a non-null <code>err_code</code> been passed in. If such an exception is thrown, <code>Error_code e_c</code> is encapsulated in exception object <code>exc</code>. If and only if no exception is thrown, there was no error (<code>*err_code</code> would have been falsy).</p>
 <p >Thus, you get the best of both worlds: you can get the simplicity and performance of an error code; or the various features of an exception (including access to the error code via <code>exc.code()</code> if desired), with the same API signature. (boost.asio follows a similar concept, though it requires two API signatures for each operation, one without an <code>Error_code</code> argument, and one with non-<code>const</code> <code>Error_code&amp;</code> out-arg. The above convention is more compact; plus we provide certain tools to reduce boiler-plate in connection with this.)</p>
 <h3>Intro to <code>Error_code</code>, a/k/a <a class="el" href="namespaceboost_1_1system.html" title="We may add some ADL-based overloads into this namespace outside flow.">boost.system</a> <code>error_code</code></h3>
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 <div class="line"><span class="keywordflow">throw</span> <a class="code hl_class" href="classflow_1_1error_1_1Runtime__error.html">flow::error::Runtime_error</a>(code, <span class="stringliteral">&quot;Additional context info here!&quot;</span>);</div>
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-<div class="ttc" id="anamespaceflow_html_a29eaaa9d0fac4ce87d8b969222dbed09"><div class="ttname"><a href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09">flow::Error_code</a></div><div class="ttdeci">boost::system::error_code Error_code</div><div class="ttdoc">Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...</div><div class="ttdef"><b>Definition:</b> common.hpp:503</div></div>
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 </div><!-- fragment --><h3>Discussion</h3>
 <p >The contents of this <code>namespace</code> is one instance (and model example) for how one can easily create their own simple error code set <code>enum</code> (and corresponding string messages) and hook it into the flexible, yet maximally fast, <a class="el" href="namespaceboost_1_1system.html" title="We may add some ADL-based overloads into this namespace outside flow.">boost.system</a> error facility. Another example (a peer of ours) would be boost.asio's error code set. See <a class="el" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09" title="Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...">flow::Error_code</a> doc header for a top-down summary of the Flow-used-and-recommended error reporting system.</p>
 <p >For <a class="el" href="namespaceboost_1_1system.html" title="We may add some ADL-based overloads into this namespace outside flow.">boost.system</a> experts wondering whether there is support for <code>error_condition</code> equivalence (i.e., the ability to compare a given <code>flow::error::error_code</code> to a more general <code>boost::system::error_condition</code>), currently the answer is no, there isn't. We may add <code>error_condition</code>s as <a class="el" href="namespaceflow.html#a29eaaa9d0fac4ce87d8b969222dbed09" title="Short-hand for a boost.system error code (which basically encapsulates an integer/enum error code and...">Error_code</a> usage patterns emerge over time. </p>
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Useful as a no-unique-address private member to make a type noncopyable while keeping that type an aggregate (can be direct-initialized).  <a href="structflow_1_1util_1_1Noncopyable.html#details">More...</a><br /></td></tr>
+<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
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 </div><!-- fragment --><p >See also <a class="el" href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2" title="Identical to buffers_to_ostream() but returns an std::string instead of writing to a given ostream.">buffers_dump_string()</a> which returns a string and can thus be more easily used directly inside <a class="el" href="log_8hpp.html#a07561c1c3f16b6c2c7335a09e25298c9" title="Logs a DATA message into flow::log::Logger *get_logger() with flow::log::Component get_log_component(...">FLOW_LOG_DATA()</a> and similar log macros.</p>
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 <div class="line"><span class="comment">// flow::util::ostream_op_string() is a bit of an improvement but still. :-)</span></div>
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-<div class="ttc" id="anamespaceflow_1_1util_html_a16357344c21456b86b7de3085e2661a2"><div class="ttname"><a href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">flow::util::buffers_dump_string</a></div><div class="ttdeci">std::string buffers_dump_string(const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Identical to buffers_to_ostream() but returns an std::string instead of writing to a given ostream.</div><div class="ttdef"><b>Definition:</b> util.hpp:481</div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a16357344c21456b86b7de3085e2661a2"><div class="ttname"><a href="namespaceflow_1_1util.html#a16357344c21456b86b7de3085e2661a2">flow::util::buffers_dump_string</a></div><div class="ttdeci">std::string buffers_dump_string(const Const_buffer_sequence &amp;data, const std::string &amp;indentation, size_t bytes_per_line)</div><div class="ttdoc">Identical to buffers_to_ostream() but returns an std::string instead of writing to a given ostream.</div><div class="ttdef"><b>Definition:</b> util.hpp:506</div></div>
 </div><!-- fragment --><h3>Rationale</h3>
 <p >The reason it returns <code>os</code> and takes a reference-to-mutable instead of the customary (for this project's style, to indicate modification potential at call sites) pointer-to-mutable is in order to be <code>bind()</code>able in such a way as to make an <code>ostream</code> manipulator. In the example above we use a lambda instead of <code>bind()</code> however.</p>
 <dl class="tparams"><dt>Template Parameters</dt><dd>
@@ -2115,7 +2118,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a09a032f8e1e77a3afc0b7df1
 <div class="line">  <span class="comment">// Now delete_x(x) will be called no matter how the current { block } exits.</span></div>
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-<div class="ttc" id="anamespaceflow_1_1util_html_a09a032f8e1e77a3afc0b7df115a773e1"><div class="ttname"><a href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">flow::util::setup_auto_cleanup</a></div><div class="ttdeci">Auto_cleanup setup_auto_cleanup(const Cleanup_func &amp;func)</div><div class="ttdoc">Provides a way to execute arbitrary (cleanup) code at the exit of the current block.</div><div class="ttdef"><b>Definition:</b> util.hpp:282</div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a09a032f8e1e77a3afc0b7df115a773e1"><div class="ttname"><a href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1">flow::util::setup_auto_cleanup</a></div><div class="ttdeci">Auto_cleanup setup_auto_cleanup(const Cleanup_func &amp;func)</div><div class="ttdoc">Provides a way to execute arbitrary (cleanup) code at the exit of the current block.</div><div class="ttdef"><b>Definition:</b> util.hpp:307</div></div>
 </div><!-- fragment --><dl class="todo"><dt><b><a class="el" href="todo.html#_todo000084">Todo:</a></b></dt><dd><a class="el" href="namespaceflow_1_1util.html#a09a032f8e1e77a3afc0b7df115a773e1" title="Provides a way to execute arbitrary (cleanup) code at the exit of the current block.">setup_auto_cleanup()</a> should take a function via move semantics.</dd></dl>
 <dl class="tparams"><dt>Template Parameters</dt><dd>
   <table class="tparams">
@@ -2213,7 +2216,7 @@ <h2 class="memtitle"><span class="permalink"><a href="#a34ed70fa4de81a4fdb9234bf
 <div class="line"><a class="code hl_function" href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">subtract_with_floor</a>(&amp;t, x) &amp;&amp;</div>
 <div class="line">  <a class="code hl_function" href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">subtract_with_floor</a>(&amp;t, long_computation()) &amp;&amp;</div>
 <div class="line">  <a class="code hl_function" href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">subtract_with_floor</a>(&amp;t, another_long_computation());</div>
-<div class="ttc" id="anamespaceflow_1_1util_html_a34ed70fa4de81a4fdb9234bfb5a3a914"><div class="ttname"><a href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">flow::util::subtract_with_floor</a></div><div class="ttdeci">bool subtract_with_floor(Minuend *minuend, const Subtrahend &amp;subtrahend, const Minuend &amp;floor)</div><div class="ttdoc">Performs *minuend -= subtrahend, subject to a floor of floor.</div><div class="ttdef"><b>Definition:</b> util.hpp:299</div></div>
+<div class="ttc" id="anamespaceflow_1_1util_html_a34ed70fa4de81a4fdb9234bfb5a3a914"><div class="ttname"><a href="namespaceflow_1_1util.html#a34ed70fa4de81a4fdb9234bfb5a3a914">flow::util::subtract_with_floor</a></div><div class="ttdeci">bool subtract_with_floor(Minuend *minuend, const Subtrahend &amp;subtrahend, const Minuend &amp;floor)</div><div class="ttdoc">Performs *minuend -= subtrahend, subject to a floor of floor.</div><div class="ttdef"><b>Definition:</b> util.hpp:324</div></div>
 </div><!-- fragment --><dl class="tparams"><dt>Template Parameters</dt><dd>
   <table class="tparams">
     <tr><td class="paramname">Minuend</td><td>Numeric type. </td></tr>
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-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
+Generated on Fri Jan 10 2025 20:12:42 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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diff --git a/doc/flow_doc/generated/html_public/namespacemembers_type.html b/doc/flow_doc/generated/html_public/namespacemembers_type.html
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-Generated on Wed Dec 11 2024 04:03:13 for Flow by&#160;<a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4
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 <tr id="row_0_6_9_" class="even"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Container__traits_3_01util_1_1Linked__hash__set_3_01T_00_01Hash_00_01Pred_01_4_01_4.html" target="_self">Container_traits&lt; util::Linked_hash_set&lt; T, Hash, Pred &gt; &gt;</a></td><td class="desc">Traits of <a class="el" href="classflow_1_1util_1_1Linked__hash__set.html" title="An object of this class is a set that combines the lookup speed of an unordered_set&lt;&gt; and ordering an...">flow::util::Linked_hash_set</a> </td></tr>
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-<tr id="row_0_6_17_" class="even"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">Shared_ptr_alias_holder</a></td><td class="desc">Convenience class template that endows the given subclass <code>T</code> with nested aliases <code>Ptr</code> and <code>Const_ptr</code> aliased to <code>shared_ptr&lt;T&gt;</code> and <code>shared_ptr&lt;const T&gt;</code> respectively </td></tr>
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+<tr id="row_0_6_12_"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="structflow_1_1util_1_1Noncopyable.html" target="_self">Noncopyable</a></td><td class="desc">Useful as a no-unique-address private member to make a type noncopyable while keeping that type an aggregate (can be direct-initialized) </td></tr>
+<tr id="row_0_6_13_" class="even"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Null__interface.html" target="_self">Null_interface</a></td><td class="desc">An empty interface, consisting of nothing but a default <code>virtual</code> destructor, intended as a boiler-plate-reducing base for any other (presumably <code>virtual</code>-method-having) class that would otherwise require a default <code>virtual</code> destructor </td></tr>
+<tr id="row_0_6_14_"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" target="_self">Rnd_gen_uniform_range</a></td><td class="desc">Simple, non-thread-safe uniform-range random number generator </td></tr>
+<tr id="row_0_6_15_" class="even"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range__base.html" target="_self">Rnd_gen_uniform_range_base</a></td><td class="desc">Base class for <a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" title="Simple, non-thread-safe uniform-range random number generator.">Rnd_gen_uniform_range</a> and <a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range__mt.html" title="Identical to Rnd_gen_uniform_range but safe for concurrent RNG given a single object.">Rnd_gen_uniform_range_mt</a> for various aliases and similar, so template arguments need not be involved </td></tr>
+<tr id="row_0_6_16_"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range__mt.html" target="_self">Rnd_gen_uniform_range_mt</a></td><td class="desc">Identical to <a class="el" href="classflow_1_1util_1_1Rnd__gen__uniform__range.html" title="Simple, non-thread-safe uniform-range random number generator.">Rnd_gen_uniform_range</a> but safe for concurrent RNG given a single object </td></tr>
+<tr id="row_0_6_17_" class="even"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Scoped__setter.html" target="_self">Scoped_setter</a></td><td class="desc">A simple RAII-pattern class template that, at construction, sets the specified location in memory to a specified value, memorizing the previous contents; and at destruction restores the value </td></tr>
+<tr id="row_0_6_18_"><td class="entry"><span style="width:48px;display:inline-block;">&#160;</span><span class="icona"><span class="icon">C</span></span><a class="el" href="classflow_1_1util_1_1Shared__ptr__alias__holder.html" target="_self">Shared_ptr_alias_holder</a></td><td class="desc">Convenience class template that endows the given subclass <code>T</code> with nested aliases <code>Ptr</code> and <code>Const_ptr</code> aliased to <code>shared_ptr&lt;T&gt;</code> and <code>shared_ptr&lt;const T&gt;</code> respectively </td></tr>
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+</div><!-- top -->
+<div class="header">
+  <div class="summary">
+<a href="#pub-methods">Public Member Functions</a> &#124;
+<a href="structflow_1_1util_1_1Noncopyable-members.html">List of all members</a>  </div>
+  <div class="headertitle"><div class="title">flow::util::Noncopyable Struct Reference</div></div>
+</div><!--header-->
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+
+<p>Useful as a no-unique-address private member to make a type noncopyable while keeping that type an aggregate (can be direct-initialized).  
+ <a href="structflow_1_1util_1_1Noncopyable.html#details">More...</a></p>
+
+<p><code>#include &lt;util.hpp&gt;</code></p>
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+&#160;</td><td class="memItemRight" valign="bottom"><b>Noncopyable</b> (const <a class="el" href="structflow_1_1util_1_1Noncopyable.html">Noncopyable</a> &amp;)=delete</td></tr>
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+void&#160;</td><td class="memItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="structflow_1_1util_1_1Noncopyable.html">Noncopyable</a> &amp;)=delete</td></tr>
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+<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
+<div class="textblock"><p >Useful as a no-unique-address private member to make a type noncopyable while keeping that type an aggregate (can be direct-initialized). </p>
+<p >So you can do: <code>[[no_unique_address]] <a class="el" href="structflow_1_1util_1_1Noncopyable.html" title="Useful as a no-unique-address private member to make a type noncopyable while keeping that type an ag...">flow::util::Noncopyable</a> m_nc{};</code>.</p>
+<h3>Rationale</h3>
+<p >The usual technique of deriving from <code>boost::noncopyable</code> disables aggregateness. In C++20 declaring a <code>= delete</code> copy ctor also disables it. This trick still works though. </p>
+</div><hr/>The documentation for this struct was generated from the following file:<ul>
+<li>util/<a class="el" href="util_2util_8hpp.html">util.hpp</a></li>
+</ul>
+</div><!-- contents -->
+<!-- start footer part -->
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